/*
*
* (c) COPYRIGHT INRIA and W3C, 1996-2004
* Please first read the full copyright statement in file COPYRIGHT.
*
*/
/*
* Everything directly related to the CSS syntax should now hopefully
* be contained in this module.
*
* Author: I. Vatton
*
*/
/* Included headerfiles */
#define THOT_EXPORT extern
#include "amaya.h"
#include "css.h"
#include "fetchHTMLname.h"
#include "SVG.h"
#include "XML.h"
#include "document.h"
typedef struct _BackgroundImageCallbackBlock
{
Element el;
PSchema tsch;
CSSInfoPtr css;
PresentationContext ctxt;
}
BackgroundImageCallbackBlock, *BackgroundImageCallbackPtr;
#include "AHTURLTools_f.h"
#include "HTMLpresentation_f.h"
#include "HTMLimage_f.h"
#include "UIcss_f.h"
#include "css_f.h"
#include "fetchHTMLname_f.h"
#include "fetchXMLname_f.h"
#include "html2thot_f.h"
#include "init_f.h"
#include "styleparser_f.h"
#define MAX_BUFFER_LENGTH 200
/*
* A PropertyParser is a function used to parse the
* description substring associated to a given style attribute
* e.g.: "red" for a color attribute or "12pt bold helvetica"
* for a font attribute.
*/
typedef char *(*PropertyParser) (Element element,
PSchema tsch,
PresentationContext context,
char *cssRule,
CSSInfoPtr css,
ThotBool isHTML);
/* Description of the set of CSS properties supported */
typedef struct CSSProperty
{
char *name;
PropertyParser parsing_function;
}
CSSProperty;
static char *DocURL = NULL; /* The parsed CSS file */
static int LineNumber = -1; /* The line where the error occurs */
static int NewLineSkipped = 0;
static ThotBool DoApply = TRUE;
/*----------------------------------------------------------------------
SkipWord:
----------------------------------------------------------------------*/
static char *SkipWord (char *ptr)
{
while (isalnum((int)*ptr) || *ptr == '-' || *ptr == '#' || *ptr == '%')
ptr++;
return (ptr);
}
/*----------------------------------------------------------------------
SkipBlanksAndComments:
----------------------------------------------------------------------*/
char *SkipBlanksAndComments (char *ptr)
{
/* skip spaces */
while (*ptr == SPACE ||
*ptr == BSPACE ||
*ptr == EOL ||
*ptr == TAB ||
*ptr == __CR__)
{
if (*ptr == EOL)
/* increment the number of newline skipped */
NewLineSkipped++;
ptr++;
}
while (ptr[0] == '/' &&
ptr[1] == '*')
{
/* look for the end of the comment */
ptr = &ptr[2];
while (ptr[0] != EOS && (ptr[0] != '*' || ptr[1] != '/'))
ptr++;
if (ptr[0] != EOS)
ptr = &ptr[2];
/* skip spaces */
while (*ptr == SPACE || *ptr == BSPACE || *ptr == EOL ||
*ptr == TAB || *ptr == __CR__)
{
if (*ptr == EOL)
/* increment the number of newline skipped */
NewLineSkipped++;
ptr++;
}
}
return (ptr);
}
/*----------------------------------------------------------------------
SkipQuotedString
----------------------------------------------------------------------*/
static char *SkipQuotedString (char *ptr, char quote)
{
ThotBool stop;
stop = FALSE;
while (!stop)
{
if (*ptr == quote)
{
ptr++;
stop = TRUE;
}
else if (*ptr == EOS)
stop = TRUE;
else if (*ptr == '\\')
/* escape character */
{
ptr++;
if ((*ptr >= '0' && *ptr <= '9') || (*ptr >= 'A' && *ptr <= 'F') ||
(*ptr >= 'a' && *ptr <= 'f'))
{
ptr++;
if ((*ptr >= '0' && *ptr <= '9') || (*ptr >= 'A' && *ptr <= 'F') ||
(*ptr >= 'a' && *ptr <= 'f'))
ptr++;
}
else
ptr++;
}
else
ptr++;
}
return (ptr);
}
/*----------------------------------------------------------------------
CSSPrintError
print the error message msg on stderr.
When the line is 0 ask to expat the current line number
----------------------------------------------------------------------*/
static void CSSPrintError (char *msg, char *value)
{
if (!TtaIsPrinting () && ParsedDoc > 0)
{
if (!ErrFile)
{
if (OpenParsingErrors (ParsedDoc) == FALSE)
return;
}
if (DocURL)
{
fprintf (ErrFile, "\n*** Errors/warnings in %s\n", DocURL);
/* set to NULL as long as the CSS file doesn't change */
DocURL = NULL;
}
CSSErrorsFound = TRUE;
if (LineNumber < 0)
fprintf (ErrFile, " In style attribute, %s \"%s\"\n", msg, value);
else
fprintf (ErrFile, "@ line %d: %s \"%s\"\n", LineNumber+NewLineSkipped,
msg, value);
}
}
/*----------------------------------------------------------------------
CSSParseError
print the error message msg on stderr.
When the line is 0 ask expat about the current line number
----------------------------------------------------------------------*/
static void CSSParseError (char *msg, char *value, char *endvalue)
{
char c = EOS;
if (endvalue)
{
/* close the string here */
c = *endvalue;
*endvalue = EOS;
}
CSSPrintError (msg, value);
if (endvalue)
*endvalue = c;
}
/*----------------------------------------------------------------------
SkipProperty skips a property and display and error message
----------------------------------------------------------------------*/
static char *SkipProperty (char *ptr, ThotBool reportError)
{
char *deb;
char c;
deb = ptr;
while (*ptr != EOS && *ptr != ';' && *ptr != '}')
{
if (*ptr == '"' && (ptr == deb || ptr[-1] != '\\'))
{
/* skip to the end of the string "..." */
ptr++;
while (*ptr != EOS &&
(*ptr != '"' || (*ptr == '"' && ptr[-1] == '\\')))
ptr++;
}
ptr++;
}
/* print the skipped property */
c = *ptr;
*ptr = EOS;
if (reportError && *deb != EOS &&
strncasecmp (deb, "border-collapse", 15) &&
strncasecmp (deb, "border-spacing", 14) &&
strncasecmp (deb, "caption-side", 12) &&
strncasecmp (deb, "clip", 4) &&
strncasecmp (deb, "counter-increment", 16) &&
strncasecmp (deb, "counter-reset", 13) &&
strncasecmp (deb, "cursor", 6) &&
strncasecmp (deb, "empty-cells", 11) &&
strncasecmp (deb, "font-strech", 11) &&
strncasecmp (deb, "letter-spacing", 14) &&
strncasecmp (deb, "marker-offset", 12) &&
strncasecmp (deb, "max-height", 10) &&
strncasecmp (deb, "max-width", 9) &&
strncasecmp (deb, "min-height", 10) &&
strncasecmp (deb, "min-width", 9) &&
strncasecmp (deb, "orphans", 7) &&
strncasecmp (deb, "outline-color", 13) &&
strncasecmp (deb, "outline-style", 13) &&
strncasecmp (deb, "outline-width", 13) &&
strncasecmp (deb, "outline", 7) &&
strncasecmp (deb, "overflow", 8) &&
strncasecmp (deb, "quotes", 6) &&
strncasecmp (deb, "table-layout", 12) &&
strncasecmp (deb, "text-shadow", 11) &&
strncasecmp (deb, "visibility", 10) &&
strncasecmp (deb, "widows", 6))
CSSPrintError ("CSS property ignored:", deb);
*ptr = c;
return (ptr);
}
/*----------------------------------------------------------------------
SkipValue
skips the value and display an error message if msg is not NULL
----------------------------------------------------------------------*/
static char *SkipValue (char *msg, char *ptr)
{
char *deb;
char c;
deb = ptr;
while (*ptr != EOS && *ptr != ';' && *ptr != '}')
{
if (*ptr == '"' && (ptr == deb || ptr[-1] != '\\'))
{
/* skip to the end of the string "..." */
ptr++;
while (*ptr != '"' || (ptr[0] == '"' && ptr[-1] == '\\'))
ptr++;
}
ptr++;
}
/* print the skipped property */
c = *ptr;
*ptr = EOS;
if (msg && *deb != EOS && *deb != ',')
CSSPrintError (msg, deb);
*ptr = c;
return (ptr);
}
/*----------------------------------------------------------------------
ParseNumber:
parse a number and returns the corresponding value.
----------------------------------------------------------------------*/
char *ParseNumber (char *cssRule, PresentationValue *pval)
{
int val = 0;
int minus = 0;
int valid = 0;
int f = 0;
ThotBool real = FALSE;
pval->typed_data.unit = UNIT_REL;
pval->typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule == '-')
{
minus = 1;
cssRule++;
cssRule = SkipBlanksAndComments (cssRule);
}
if (*cssRule == '+')
{
cssRule++;
cssRule = SkipBlanksAndComments (cssRule);
}
while ((*cssRule >= '0') && (*cssRule <= '9'))
{
val *= 10;
val += *cssRule - '0';
cssRule++;
valid = 1;
}
if (*cssRule == '.')
{
real = TRUE;
f = val;
val = 0;
cssRule++;
/* keep only 3 digits */
if (*cssRule >= '0' && *cssRule <= '9')
{
val = (*cssRule - '0') * 100;
cssRule++;
if (*cssRule >= '0' && *cssRule <= '9')
{
val += (*cssRule - '0') * 10;
cssRule++;
if ((*cssRule >= '0') && (*cssRule <= '9'))
{
val += *cssRule - '0';
cssRule++;
}
}
while (*cssRule >= '0' && *cssRule <= '9')
cssRule++;
valid = 1;
}
}
if (!valid)
{
pval->typed_data.unit = UNIT_INVALID;
pval->typed_data.value = 0;
}
else
{
pval->typed_data.real = real;
if (real)
{
if (minus)
pval->typed_data.value = -(f * 1000 + val);
else
pval->typed_data.value = f * 1000 + val;
}
else
{
if (minus)
pval->typed_data.value = -val;
else
pval->typed_data.value = val;
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSUnit:
parse a CSS Unit substring and returns the corresponding
value and its unit.
----------------------------------------------------------------------*/
char *ParseCSSUnit (char *cssRule, PresentationValue *pval)
{
unsigned int uni;
pval->typed_data.unit = UNIT_REL;
cssRule = ParseNumber (cssRule, pval);
if (pval->typed_data.unit == UNIT_INVALID)
cssRule = SkipWord (cssRule);
else
{
cssRule = SkipBlanksAndComments (cssRule);
uni = 0;
while (CSSUnitNames[uni].sign)
{
if (!strncasecmp (CSSUnitNames[uni].sign, cssRule,
strlen (CSSUnitNames[uni].sign)))
{
pval->typed_data.unit = CSSUnitNames[uni].unit;
return (cssRule + strlen (CSSUnitNames[uni].sign));
}
else
uni++;
}
/* not in the list of predefined units */
pval->typed_data.unit = UNIT_BOX;
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseClampedUnit:
parse a CSS Unit substring and returns the corresponding value and unit.
[0,1]
----------------------------------------------------------------------*/
char *ParseClampedUnit (char *cssRule, PresentationValue *pval)
{
char *p;
p = cssRule;
cssRule = ParseNumber (cssRule, pval);
if (*cssRule != EOS && *cssRule != SPACE && *cssRule != ';')
{
cssRule++;
pval->typed_data.unit = UNIT_REL;
if (pval->typed_data.value > 100)
pval->typed_data.value = 1000;
else
pval->typed_data.value *= 10;
CSSParseError ("Invalid value", p, cssRule);
}
else
{
pval->typed_data.unit = UNIT_REL;
if (pval->typed_data.real)
pval->typed_data.real = FALSE;
else if (pval->typed_data.value > 1)
{
pval->typed_data.value = 1000;
CSSParseError ("Invalid value", p, cssRule);
}
else if (pval->typed_data.value < 0)
{
pval->typed_data.value = 0;
CSSParseError ("Invalid value", p, cssRule);
}
else
pval->typed_data.value *= 1000;
}
pval->data = pval->typed_data.value;
return (cssRule);
}
/*----------------------------------------------------------------------
ParseBorderValue
----------------------------------------------------------------------*/
static char *ParseBorderValue (char *cssRule, PresentationValue *border)
{
char *ptr;
/* first parse the attribute string */
border->typed_data.value = 0;
border->typed_data.unit = UNIT_INVALID;
border->typed_data.real = FALSE;
if (!strncasecmp (cssRule, "thin", 4))
{
border->typed_data.unit = UNIT_PX;
border->typed_data.value = 1;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "medium", 6))
{
border->typed_data.unit = UNIT_PX;
border->typed_data.value = 3;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "thick", 5))
{
border->typed_data.unit = UNIT_PX;
border->typed_data.value = 5;
cssRule = SkipWord (cssRule);
}
else if (isdigit (*cssRule) || *cssRule == '.')
{
ptr = cssRule;
cssRule = ParseCSSUnit (cssRule, border);
if (border->typed_data.value == 0)
border->typed_data.unit = UNIT_PX;
else if (border->typed_data.unit == UNIT_INVALID ||
border->typed_data.unit == UNIT_BOX ||
border->typed_data.unit == UNIT_PERCENT)
{
border->typed_data.unit = UNIT_INVALID;
border->typed_data.value = 0;
CSSParseError ("Invalid border-width value", ptr, cssRule);
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseBorderStyle
----------------------------------------------------------------------*/
static char *ParseBorderStyle (char *cssRule, PresentationValue *border)
{
/* first parse the attribute string */
border->typed_data.value = 0;
border->typed_data.unit = UNIT_PX;
border->typed_data.real = FALSE;
if (!strncasecmp (cssRule, "none", 4))
border->typed_data.value = BorderStyleNone;
else if (!strncasecmp (cssRule, "hidden", 6))
border->typed_data.value = BorderStyleHidden;
else if (!strncasecmp (cssRule, "dotted", 6))
border->typed_data.value = BorderStyleDotted;
else if (!strncasecmp (cssRule, "dashed", 6))
border->typed_data.value = BorderStyleDashed;
else if (!strncasecmp (cssRule, "solid", 5))
border->typed_data.value = BorderStyleSolid;
else if (!strncasecmp (cssRule, "double", 6))
border->typed_data.value = BorderStyleDouble;
else if (!strncasecmp (cssRule, "groove", 6))
border->typed_data.value = BorderStyleGroove;
else if (!strncasecmp (cssRule, "ridge", 5))
border->typed_data.value = BorderStyleRidge;
else if (!strncasecmp (cssRule, "inset", 5))
border->typed_data.value = BorderStyleInset;
else if (!strncasecmp (cssRule, "outset", 6))
border->typed_data.value = BorderStyleOutset;
else
{
/* invalid style */
border->typed_data.unit = UNIT_INVALID;
return (cssRule);
}
/* the value is parsed now */
cssRule = SkipWord (cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSColor: parse a CSS color attribute string
we expect the input string describing the attribute to be
either a color name, a 3 tuple or an hexadecimal encoding.
The color used will be approximed from the current color
table
----------------------------------------------------------------------*/
static char *ParseCSSColor (char *cssRule, PresentationValue * val)
{
char *ptr;
unsigned short redval = (unsigned short) -1;
unsigned short greenval = 0; /* composant of each RGB */
unsigned short blueval = 0; /* default to red if unknown ! */
int best = 0; /* best color in list found */
cssRule = SkipBlanksAndComments (cssRule);
val->typed_data.unit = UNIT_INVALID;
val->typed_data.real = FALSE;
val->typed_data.value = 0;
ptr = TtaGiveRGB (cssRule, &redval, &greenval, &blueval);
if (!strncasecmp (cssRule, "inherit", 7))
{
cssRule = SkipWord (cssRule);
return (cssRule);
}
if (ptr == cssRule)
{
cssRule = SkipWord (cssRule);
CSSParseError ("Invalid color value", ptr, cssRule);
val->typed_data.value = 0;
val->typed_data.unit = UNIT_INVALID;
}
else
{
best = TtaGetThotColor (redval, greenval, blueval);
val->typed_data.value = best;
val->typed_data.unit = UNIT_REL;
cssRule = ptr;
}
val->typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
CheckImportantRule updates the field important of the context and
the line number.
----------------------------------------------------------------------*/
static char *CheckImportantRule (char *cssRule, PresentationContext context)
{
cssRule = SkipBlanksAndComments (cssRule);
/* update the line number */
context->cssLine = LineNumber + NewLineSkipped;
if (*cssRule != '!')
context->important = FALSE;
else
{
cssRule++;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "important", 9))
{
context->important = TRUE;
cssRule += 9;
}
else
context->important = FALSE;
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderTopWidth: parse a CSS BorderTopWidth
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderTopWidth (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue border;
cssRule = SkipBlanksAndComments (cssRule);
cssRule = ParseBorderValue (cssRule, &border);
if (border.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRBorderTopWidth, element, tsch, context, border);
border.typed_data.value = 1;
border.typed_data.unit = UNIT_REL;
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderBottomWidth: parse a CSS BorderBottomWidth
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderBottomWidth (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue border;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
cssRule = ParseBorderValue (cssRule, &border);
if (border.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRBorderBottomWidth, element, tsch, context, border);
border.typed_data.value = 1;
border.typed_data.unit = UNIT_REL;
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderLeftWidth: parse a CSS BorderLeftWidth
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderLeftWidth (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue border;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
cssRule = ParseBorderValue (cssRule, &border);
if (border.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRBorderLeftWidth, element, tsch, context, border);
border.typed_data.value = 1;
border.typed_data.unit = UNIT_REL;
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderRightWidth: parse a CSS BorderRightWidth
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderRightWidth (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue border;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
cssRule = ParseBorderValue (cssRule, &border);
if (border.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRBorderRightWidth, element, tsch, context, border);
border.typed_data.value = 1;
border.typed_data.unit = UNIT_REL;
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderWidth: parse a CSS BorderWidth
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderWidth (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
char *ptrT, *ptrR, *ptrB, *ptrL;
int skippedNL;
ptrT = SkipBlanksAndComments (cssRule);
/* First parse Border-Top */
ptrR = ParseCSSBorderTopWidth (element, tsch, context, ptrT, css, isHTML);
ptrR = SkipBlanksAndComments (ptrR);
if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',')
{
skippedNL = NewLineSkipped;
cssRule = ptrR;
/* apply the Border-Top to all */
ptrR = ParseCSSBorderRightWidth (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSBorderBottomWidth (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSBorderLeftWidth (element, tsch, context, ptrT, css, isHTML);
}
else
{
/* parse Border-Right */
ptrB = ParseCSSBorderRightWidth (element, tsch, context, ptrR, css, isHTML);
ptrB = SkipBlanksAndComments (ptrB);
if (*ptrB == ';' || *ptrB == EOS || *ptrB == ',')
{
skippedNL = NewLineSkipped;
cssRule = ptrB;
/* apply the Border-Top to Border-Bottom */
ptrB = ParseCSSBorderBottomWidth (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
/* apply the Border-Right to Border-Left */
ptrB = ParseCSSBorderLeftWidth (element, tsch, context, ptrR, css, isHTML);
}
else
{
/* parse Border-Bottom */
ptrL = ParseCSSBorderBottomWidth (element, tsch, context, ptrB, css, isHTML);
ptrL = SkipBlanksAndComments (ptrL);
if (*ptrL == ';' || *ptrL == EOS || *ptrL == ',')
{
cssRule = ptrL;
/* apply the Border-Right to Border-Left */
ptrL = ParseCSSBorderLeftWidth (element, tsch, context, ptrR, css, isHTML);
}
else
/* parse Border-Left */
cssRule = ParseCSSBorderLeftWidth (element, tsch, context, ptrL, css, isHTML);
cssRule = SkipBlanksAndComments (cssRule);
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderColorTop: parse a CSS BorderColorTop
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderColorTop (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue best;
if (!strncasecmp (cssRule, "transparent", 11))
{
best.typed_data.value = -2; /* -2 means transparent */
best.typed_data.unit = UNIT_REL;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation */
TtaSetStylePresentation (PRBorderTopColor, element, tsch, context, best);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderColorLeft: parse a CSS BorderColorLeft
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderColorLeft (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue best;
if (!strncasecmp (cssRule, "transparent", 11))
{
best.typed_data.value = -2; /* -2 means transparent */
best.typed_data.unit = UNIT_REL;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation */
TtaSetStylePresentation (PRBorderLeftColor, element, tsch, context, best);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderColorBottom: parse a CSS BorderColorBottom
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderColorBottom (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue best;
if (!strncasecmp (cssRule, "transparent", 11))
{
best.typed_data.value = -2; /* -2 means transparent */
best.typed_data.unit = UNIT_REL;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation */
TtaSetStylePresentation (PRBorderBottomColor, element, tsch, context, best);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderColorRight: parse a CSS BorderColorRight
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderColorRight (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue best;
if (!strncasecmp (cssRule, "transparent", 11))
{
best.typed_data.value = -2; /* -2 means transparent */
best.typed_data.unit = UNIT_REL;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation */
TtaSetStylePresentation (PRBorderRightColor, element, tsch, context, best);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderColor: parse a CSS border-color
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderColor (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
char *ptrT, *ptrR, *ptrB, *ptrL;
int skippedNL;
ptrT = SkipBlanksAndComments (cssRule);
/* First parse Border-Top */
ptrR = ParseCSSBorderColorTop (element, tsch, context, ptrT, css, isHTML);
ptrR = SkipBlanksAndComments (ptrR);
if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',')
{
skippedNL = NewLineSkipped;
cssRule = ptrR;
/* apply the Border-Top to all */
ptrR = ParseCSSBorderColorRight (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSBorderColorBottom (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSBorderColorLeft (element, tsch, context, ptrT, css, isHTML);
}
else
{
/* parse Border-Right */
ptrB = ParseCSSBorderColorRight (element, tsch, context, ptrR, css, isHTML);
ptrB = SkipBlanksAndComments (ptrB);
if (*ptrB == ';' || *ptrB == EOS || *ptrB == ',')
{
skippedNL = NewLineSkipped;
cssRule = ptrB;
/* apply the Border-Top to Border-Bottom */
ptrB = ParseCSSBorderColorBottom (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
/* apply the Border-Right to Border-Left */
ptrB = ParseCSSBorderColorLeft (element, tsch, context, ptrR, css, isHTML);
}
else
{
skippedNL = NewLineSkipped;
/* parse Border-Bottom */
ptrL = ParseCSSBorderColorBottom (element, tsch, context, ptrB, css, isHTML);
NewLineSkipped = skippedNL;
ptrL = SkipBlanksAndComments (ptrL);
if (*ptrL == ';' || *ptrL == EOS || *ptrL == ',')
{
cssRule = ptrL;
/* apply the Border-Right to Border-Left */
ptrL = ParseCSSBorderColorLeft (element, tsch, context, ptrR, css, isHTML);
}
else
/* parse Border-Left */
cssRule = ParseCSSBorderColorLeft (element, tsch, context, ptrL, css, isHTML);
cssRule = SkipBlanksAndComments (cssRule);
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderStyleTop: parse a CSS BorderStyleTop
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderStyleTop (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue border;
cssRule = SkipBlanksAndComments (cssRule);
cssRule = ParseBorderStyle (cssRule, &border);
if (border.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRBorderTopStyle, element, tsch, context, border);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderStyleLeft: parse a CSS BorderStyleLeft
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderStyleLeft (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue border;
cssRule = SkipBlanksAndComments (cssRule);
cssRule = ParseBorderStyle (cssRule, &border);
if (border.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRBorderLeftStyle, element, tsch, context, border);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderStyleBottom: parse a CSS BorderStyleBottom
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderStyleBottom (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue border;
cssRule = SkipBlanksAndComments (cssRule);
cssRule = ParseBorderStyle (cssRule, &border);
if (border.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRBorderBottomStyle, element, tsch, context, border);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderStyleRight: parse a CSS BorderStyleRight
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderStyleRight (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue border;
cssRule = SkipBlanksAndComments (cssRule);
cssRule = ParseBorderStyle (cssRule, &border);
if (border.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRBorderRightStyle, element, tsch, context, border);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderStyleStyle: parse a CSS border-style
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderStyle (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
char *ptrT, *ptrR, *ptrB, *ptrL;
int skippedNL;
ptrT = SkipBlanksAndComments (cssRule);
/* First parse Border-Top */
ptrR = ParseCSSBorderStyleTop (element, tsch, context, ptrT, css, isHTML);
ptrR = SkipBlanksAndComments (ptrR);
if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',')
{
skippedNL = NewLineSkipped;
cssRule = ptrR;
/* apply the Border-Top to all */
ptrR = ParseCSSBorderStyleRight (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSBorderStyleBottom (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSBorderStyleLeft (element, tsch, context, ptrT, css, isHTML);
}
else
{
/* parse Border-Right */
ptrB = ParseCSSBorderStyleRight (element, tsch, context, ptrR, css, isHTML);
ptrB = SkipBlanksAndComments (ptrB);
if (*ptrB == ';' || *ptrB == EOS || *ptrB == ',')
{
skippedNL = NewLineSkipped;
cssRule = ptrB;
/* apply the Border-Top to Border-Bottom */
ptrB = ParseCSSBorderStyleBottom (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
/* apply the Border-Right to Border-Left */
ptrB = ParseCSSBorderStyleLeft (element, tsch, context, ptrR, css, isHTML);
}
else
{
/* parse Border-Bottom */
ptrL = ParseCSSBorderStyleBottom (element, tsch, context, ptrB, css, isHTML);
ptrL = SkipBlanksAndComments (ptrL);
if (*ptrL == ';' || *ptrL == EOS || *ptrL == ',')
{
cssRule = ptrL;
/* apply the Border-Right to Border-Left */
ptrL = ParseCSSBorderStyleLeft (element, tsch, context, ptrR, css, isHTML);
}
else
/* parse Border-Left */
cssRule = ParseCSSBorderStyleLeft (element, tsch, context, ptrL, css, isHTML);
cssRule = SkipBlanksAndComments (cssRule);
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderTop: parse a CSS BorderTop
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderTop (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
while (*cssRule != ';' && *cssRule != EOS && *cssRule != ',')
{
ptr = cssRule;
cssRule = ParseCSSBorderStyleTop (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = ParseCSSBorderTopWidth (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = ParseCSSBorderColorTop (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
/* rule not found */
cssRule = SkipValue ("Invalid border value", cssRule);
cssRule = SkipBlanksAndComments (cssRule);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderLeft: parse a CSS BorderLeft
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderLeft (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
while (*cssRule != ';' && *cssRule != EOS && *cssRule != ',')
{
ptr = cssRule;
cssRule = ParseCSSBorderStyleLeft (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = ParseCSSBorderLeftWidth (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = ParseCSSBorderColorLeft (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
/* rule not found */
cssRule = SkipValue ("Invalid border value", cssRule);
cssRule = SkipBlanksAndComments (cssRule);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderBottom: parse a CSS BorderBottom
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderBottom (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
while (*cssRule != ';' && *cssRule != EOS && *cssRule != ',')
{
ptr = cssRule;
cssRule = ParseCSSBorderStyleBottom (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = ParseCSSBorderBottomWidth (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = ParseCSSBorderColorBottom (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
/* rule not found */
cssRule = SkipValue ("Invalid border value", cssRule);
cssRule = SkipBlanksAndComments (cssRule);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorderRight: parse a CSS BorderRight
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorderRight (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
while (*cssRule != ';' && *cssRule != EOS && *cssRule != ',')
{
ptr = cssRule;
cssRule = ParseCSSBorderStyleRight (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = ParseCSSBorderRightWidth (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = ParseCSSBorderColorRight (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
/* rule not found */
cssRule = SkipValue ("Invalid border value", cssRule);
cssRule = SkipBlanksAndComments (cssRule);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBorder: parse a CSS border
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBorder (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
char *ptrT, *ptrR;
int skippedNL;
ptrT = SkipBlanksAndComments (cssRule);
/* First parse Border-Top */
ptrR = ParseCSSBorderTop (element, tsch, context, ptrT, css, isHTML);
ptrR = SkipBlanksAndComments (ptrR);
if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',')
{
skippedNL = NewLineSkipped;
cssRule = ptrR;
/* apply the Border-Top to all */
ptrR = ParseCSSBorderRight (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSBorderBottom (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSBorderLeft (element, tsch, context, ptrT, css, isHTML);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFloat: parse a CSS float attribute string
----------------------------------------------------------------------*/
static char *ParseCSSFloat (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
DisplayMode dispMode;
PresentationValue pval;
pval.typed_data.value = 0;
pval.typed_data.unit = UNIT_BOX;
pval.typed_data.real = FALSE;
if (!strncasecmp (cssRule, "inherit", 7))
{
cssRule = SkipWord (cssRule);
return (cssRule);
}
if (!strncasecmp (cssRule, "none", 4))
pval.typed_data.value = FloatNone;
else if (!strncasecmp (cssRule, "left", 4))
pval.typed_data.value = FloatLeft;
else if (!strncasecmp (cssRule, "right", 5))
pval.typed_data.value = FloatRight;
if (pval.typed_data.value == 0)
cssRule = SkipValue ("Invalid float value", cssRule);
else
{
if (DoApply)
{
dispMode = TtaGetDisplayMode (context->doc);
if (dispMode != NoComputedDisplay)
{
/* force a redisplay of the whole document */
TtaSetDisplayMode (context->doc, NoComputedDisplay);
#ifdef AMAYA_DEBUG
/*printf ("Force NoComputedDisplay doc=%d\n", context->doc);*/
#endif /* AMAYA_DEBUG */
}
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRFloat, element, tsch, context, pval);
}
cssRule = SkipValue (NULL, cssRule);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSClear: parse a CSS clear rule
----------------------------------------------------------------------*/
static char *ParseCSSClear (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue pval;
pval.typed_data.value = 0;
pval.typed_data.unit = UNIT_BOX;
pval.typed_data.real = FALSE;
if (!strncasecmp (cssRule, "inherit", 7))
{
cssRule = SkipWord (cssRule);
return (cssRule);
}
if (!strncasecmp (cssRule, "none", 4))
pval.typed_data.value = ClearNone;
else if (!strncasecmp (cssRule, "left", 4))
pval.typed_data.value = ClearLeft;
else if (!strncasecmp (cssRule, "right", 5))
pval.typed_data.value = ClearRight;
else if (!strncasecmp (cssRule, "both", 4))
pval.typed_data.value = ClearBoth;
if (pval.typed_data.value == 0)
cssRule = SkipValue ("Invalid clear value", cssRule);
else
{
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRClear, element, tsch, context, pval);
}
cssRule = SkipValue (NULL, cssRule);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSDisplay: parse a CSS display attribute string
----------------------------------------------------------------------*/
static char *ParseCSSDisplay (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue pval;
pval.typed_data.unit = UNIT_REL;
pval.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "none", 4))
{
pval.typed_data.value = 0;
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRVisibility, element, tsch, context, pval);
}
cssRule = SkipWord (cssRule);
}
else
{
if (!strncasecmp (cssRule, "block", 5))
pval.typed_data.value = Block;
else if (!strncasecmp (cssRule, "inline", 6))
pval.typed_data.value = Inline;
else if (!strncasecmp (cssRule, "list-item", 9))
pval.typed_data.value = ListItem;
else if (!strncasecmp (cssRule, "run-in", 6))
pval.typed_data.value = RunIn;
else if (!strncasecmp (cssRule, "compact", 7))
pval.typed_data.value = Compact;
else if (!strncasecmp (cssRule, "marker", 6))
pval.typed_data.value = Marker;
else
{
if (strncasecmp (cssRule, "table-row-group", 15) &&
strncasecmp (cssRule, "table-column-group", 18) &&
strncasecmp (cssRule, "table-header-group", 5) &&
strncasecmp (cssRule, "table-footer-group", 6) &&
strncasecmp (cssRule, "table-row", 9) &&
strncasecmp (cssRule, "table-column", 12) &&
strncasecmp (cssRule, "table-cell", 10) &&
strncasecmp (cssRule, "table-caption", 13) &&
strncasecmp (cssRule, "table", 5) &&
strncasecmp (cssRule, "inherit", 7))
cssRule = SkipValue ("Invalid display value", cssRule);
return (cssRule);
}
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRDisplay, element, tsch, context, pval);
}
cssRule = SkipWord (cssRule);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSLetterSpacing: parse a CSS letter-spacing
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSLetterSpacing (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
cssRule = SkipValue (NULL, cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSListStyleType: parse a CSS list-style-type
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSListStyleType (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
cssRule = SkipValue (NULL, cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSListStyleImage: parse a CSS list-style-image
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSListStyleImage (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
cssRule = SkipValue (NULL, cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSListStylePosition: parse a CSS list-style-position
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSListStylePosition (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
cssRule = SkipValue (NULL, cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSListStyle: parse a CSS list-style
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSListStyle (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
cssRule = SkipValue (NULL, cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSTextAlign: parse a CSS text-align
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSTextAlign (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue align;
align.typed_data.value = 0;
align.typed_data.unit = UNIT_REL;
align.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "left", 4))
{
align.typed_data.value = AdjustLeft;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "right", 5))
{
align.typed_data.value = AdjustRight;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "center", 6))
{
align.typed_data.value = Centered;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "justify", 7))
{
align.typed_data.value = Justify;
cssRule = SkipWord (cssRule);
}
else
{
cssRule = SkipValue ("Invalid text-align value", cssRule);
return (cssRule);
}
/*
* install the new presentation.
*/
if (align.typed_data.value && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRAdjust, element, tsch, context, align);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSTextAnchor: parse a CSS text-anchor property (SVG property)
We use the Thot Adjust PRule to represent the text-anchor property
for CSS 1.0, as Adjust is not used otherwise in this context.
----------------------------------------------------------------------*/
static char *ParseCSSTextAnchor (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue align;
align.typed_data.value = 0;
align.typed_data.unit = UNIT_REL;
align.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "start", 5))
{
align.typed_data.value = AdjustLeft;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "middle", 6))
{
align.typed_data.value = Centered;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "end", 3))
{
align.typed_data.value = AdjustRight;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/* not implemented */
cssRule = SkipWord (cssRule);
return (cssRule);
}
else
{
cssRule = SkipValue ("Invalid text-anchor value", cssRule);
return (cssRule);
}
/*
* install the new presentation.
*/
if (align.typed_data.value && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRAdjust, element, tsch, context, align);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSDirection: parse a CSS direction property
----------------------------------------------------------------------*/
static char *ParseCSSDirection (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue direction;
direction.typed_data.value = 0;
direction.typed_data.unit = UNIT_REL;
direction.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "ltr", 3))
{
direction.typed_data.value = LeftToRight;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "rtl", 3))
{
direction.typed_data.value = RightToLeft;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/* not implemented */
cssRule = SkipWord (cssRule);
return (cssRule);
}
else
{
cssRule = SkipValue ("Invalid direction value", cssRule);
return (cssRule);
}
/*
* install the new presentation.
*/
if (direction.typed_data.value && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRDirection, element, tsch, context, direction);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSUnicodeBidi: parse a CSS unicode-bidi property
----------------------------------------------------------------------*/
static char *ParseCSSUnicodeBidi (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue bidi;
bidi.typed_data.value = 0;
bidi.typed_data.unit = UNIT_REL;
bidi.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "normal", 6))
{
bidi.typed_data.value = Normal;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "embed", 5))
{
bidi.typed_data.value = Embed;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "override", 8))
{
bidi.typed_data.value = Override;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/* not implemented */
cssRule = SkipWord (cssRule);
return (cssRule);
}
else
{
cssRule = SkipValue ("Invalid unicode-bidi value", cssRule);
return (cssRule);
}
/*
* install the new presentation.
*/
if (bidi.typed_data.value && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRUnicodeBidi, element, tsch, context, bidi);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSTextIndent: parse a CSS text-indent
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSTextIndent (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue pval;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
cssRule = ParseCSSUnit (cssRule, &pval);
if (pval.typed_data.value == 0)
pval.typed_data.unit = UNIT_PX;
else if (pval.typed_data.unit == UNIT_INVALID ||
pval.typed_data.unit == UNIT_BOX)
{
CSSParseError ("Invalid text-indent value", ptr, cssRule);
return (cssRule);
}
/* install the attribute */
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRIndent, element, tsch, context, pval);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSTextTransform: parse a CSS text-transform
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSTextTransform (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
cssRule = SkipValue (NULL, cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSVerticalAlign: parse a CSS vertical-align
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSVerticalAlign (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
cssRule = SkipValue (NULL, cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSWhiteSpace: parse a CSS white-space
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSWhiteSpace (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "normal", 6))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "pre", 3))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "nowrap", 6))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "pre-wrap", 8))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "pre-line", 8))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "inherit", 7))
cssRule = SkipWord (cssRule);
else
cssRule = SkipValue ("Invalid white-space value", cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSWordSpacing: parse a CSS word-spacing
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSWordSpacing (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
cssRule = SkipValue (NULL, cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSLineHeight: parse a CSS line-height property
----------------------------------------------------------------------*/
static char *ParseCSSLineHeight (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue pval;
char *ptr;
ptr = cssRule;
if (!strncasecmp (cssRule, "normal", 6))
{
pval.typed_data.unit = UNIT_REL;
pval.typed_data.real = TRUE;
pval.typed_data.value = 1100;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
cssRule = SkipWord (cssRule);
return (cssRule);
}
else
cssRule = ParseCSSUnit (cssRule, &pval);
if (pval.typed_data.unit == UNIT_INVALID)
CSSParseError ("Invalid line-height value", ptr, cssRule);
else if (DoApply)
{
/* install the new presentation */
if (pval.typed_data.unit == UNIT_BOX)
pval.typed_data.unit = UNIT_EM;
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRLineSpacing, element, tsch, context, pval);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFontSizeAdjust: parse a CSS fontsizeAdjust attr string
we expect the input string describing the attribute to be
xx-small, x-small, small, medium, large, x-large, xx-large
or an absolute size, or an imcrement relative to the parent
----------------------------------------------------------------------*/
static char *ParseCSSFontSizeAdjust (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
cssRule = SkipProperty (cssRule, FALSE);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFontSize: parse a CSS font size attr string
we expect the input string describing the attribute to be
xx-small, x-small, small, medium, large, x-large, xx-large
or an absolute size, or an imcrement relative to the parent
----------------------------------------------------------------------*/
static char *ParseCSSFontSize (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
ElementType elType;
PresentationValue pval;
char *ptr = NULL, *ptr1 = NULL;
ThotBool real;
pval.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "larger", 6))
{
pval.typed_data.unit = UNIT_PERCENT;
pval.typed_data.value = 130;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "smaller", 7))
{
pval.typed_data.unit = UNIT_PERCENT;
pval.typed_data.value = 80;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "xx-small", 8))
{
pval.typed_data.unit = UNIT_REL;
pval.typed_data.value = 1;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "x-small", 7))
{
pval.typed_data.unit = UNIT_REL;
pval.typed_data.value = 2;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "small", 5))
{
pval.typed_data.unit = UNIT_REL;
pval.typed_data.value = 3;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "medium", 6))
{
pval.typed_data.unit = UNIT_REL;
pval.typed_data.value = 4;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "large", 5))
{
pval.typed_data.unit = UNIT_REL;
pval.typed_data.value = 5;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "x-large", 7))
{
pval.typed_data.unit = UNIT_REL;
pval.typed_data.value = 6;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "xx-large", 8))
{
pval.typed_data.unit = UNIT_REL;
pval.typed_data.value = 7;
cssRule = SkipWord (cssRule);
}
else if (!isdigit (*cssRule) && *cssRule != '.')
{
cssRule = SkipValue ("Invalid font-size value", cssRule);
return (cssRule);
}
else
{
/* look for a '/' within the current cssRule */
ptr1 = strchr (cssRule, ';');
ptr = strchr (cssRule, '/');
if (ptr && (ptr1 == NULL || ptr < ptr1))
{
/* keep the line spacing rule */
ptr[0] = EOS;
ptr = &ptr[1];
}
else
ptr = NULL;
cssRule = ParseCSSUnit (cssRule, &pval);
if (pval.typed_data.unit == UNIT_BOX)
/* no unit specified */
{
elType = TtaGetElementType(element);
if (!strcmp(TtaGetSSchemaName (elType.ElSSchema), "SVG"))
/* we are working for an SVG element. No unit means pixels */
pval.typed_data.unit = UNIT_PX;
}
if (pval.typed_data.value != 0 &&
(pval.typed_data.unit == UNIT_INVALID ||
pval.typed_data.unit == UNIT_BOX ||
pval.typed_data.value < 0))
/* not a valid value */
return (cssRule);
else if (pval.typed_data.unit == UNIT_REL && pval.typed_data.value > 0)
/* CSS relative sizes have to be higher than Thot ones */
pval.typed_data.value += 1;
else
{
real = pval.typed_data.real;
if (pval.typed_data.unit == UNIT_EM)
{
if (real)
{
pval.typed_data.value /= 10;
pval.typed_data.real = FALSE;
real = FALSE;
}
else
pval.typed_data.value *= 100;
pval.typed_data.unit = UNIT_PERCENT;
}
else if (pval.typed_data.unit == UNIT_XHEIGHT)
{
/* a font size expressed in ex is converted into a percentage.
For example, "3ex" is converted into "180%", supposing
that 1ex is approximately 0.6 times the height of the
current font */
if (real)
{
pval.typed_data.value *= 6;
pval.typed_data.value /= 100;
pval.typed_data.real = FALSE;
real = FALSE;
}
else
pval.typed_data.value *= 60;
pval.typed_data.unit = UNIT_PERCENT;
}
}
}
/* install the presentation style */
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRSize, element, tsch, context, pval);
}
if (ptr)
cssRule = ParseCSSLineHeight (element, tsch, context, ptr, css, isHTML);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFontFamily: parse a CSS font family string
we expect the input string describing the attribute to be
a common generic font style name
----------------------------------------------------------------------*/
static char *ParseCSSFontFamily (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue font;
char quoteChar, *p;
font.typed_data.value = 0;
font.typed_data.unit = UNIT_REL;
font.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule == '"' || *cssRule == '\'')
{
quoteChar = *cssRule;
cssRule++;
}
else
quoteChar = EOS;
if (!strncasecmp (cssRule, "times", 5) &&
(quoteChar == EOS || quoteChar == cssRule[5]))
{
font.typed_data.value = FontTimes;
cssRule += 5;
}
else if (!strncasecmp (cssRule, "serif", 5) &&
(quoteChar == EOS || quoteChar == cssRule[5]))
{
font.typed_data.value = FontTimes;
cssRule += 5;
if (quoteChar != EOS)
cssRule++;
}
else if (!strncasecmp (cssRule, "helvetica", 9) &&
(quoteChar == EOS || quoteChar == cssRule[9]))
{
font.typed_data.value = FontHelvetica;
cssRule += 9;
if (quoteChar != EOS)
cssRule++;
}
else if (!strncasecmp (cssRule, "verdana", 7) &&
(quoteChar == EOS || quoteChar == cssRule[7]))
{
font.typed_data.value = FontHelvetica;
cssRule += 7;
if (quoteChar != EOS)
cssRule++;
}
else if (!strncasecmp (cssRule, "sans-serif", 10) &&
(quoteChar == EOS || quoteChar == cssRule[10]))
{
font.typed_data.value = FontHelvetica;
cssRule += 10;
if (quoteChar != EOS)
cssRule++;
}
else if (!strncasecmp (cssRule, "courier", 7) &&
(quoteChar == EOS || quoteChar == cssRule[7]))
{
font.typed_data.value = FontCourier;
cssRule += 7;
if (quoteChar != EOS)
cssRule++;
}
else if (!strncasecmp (cssRule, "monospace", 9) &&
(quoteChar == EOS || quoteChar == cssRule[9]))
{
font.typed_data.value = FontCourier;
cssRule += 9;
if (quoteChar != EOS)
cssRule++;
}
else
/* unknown font name. Skip it */
{
p = cssRule;
if (quoteChar != EOS)
cssRule = SkipQuotedString (cssRule, quoteChar);
else
cssRule = SkipWord (cssRule);
while (p == cssRule &&
*cssRule != ',' && *cssRule != ';' && *cssRule != EOS)
{
cssRule++;
p = cssRule;
cssRule = SkipWord (cssRule);
}
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule == ',')
{
/* recursive call to ParseCSSFontFamily */
cssRule++;
cssRule = ParseCSSFontFamily (element, tsch, context, cssRule, css, isHTML);
return (cssRule);
}
}
/* skip other values */
cssRule = SkipBlanksAndComments (cssRule);
while (*cssRule == ',')
{
cssRule++;
cssRule = SkipValue (NULL, cssRule);
cssRule = SkipBlanksAndComments (cssRule);
}
if (font.typed_data.value != 0)
{
/* install the new presentation */
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRFont, element, tsch, context, font);
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFontWeight: parse a CSS font weight string
we expect the input string describing the attribute to be
normal, bold, bolder, lighter, 100, 200, 300, ... 900, inherit.
----------------------------------------------------------------------*/
static char *ParseACSSFontWeight (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue weight;
weight.typed_data.value = 0;
weight.typed_data.unit = UNIT_REL;
weight.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "100", 3) && !isalpha (cssRule[3]))
{
weight.typed_data.value = -3;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "200", 3) && !isalpha (cssRule[3]))
{
weight.typed_data.value = -2;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "300", 3) && ! isalpha(cssRule[3]))
{
weight.typed_data.value = -1;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "normal", 6) || (!strncasecmp (cssRule, "400", 3) && !isalpha (cssRule[3])))
{
weight.typed_data.value = 0;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "500", 3) && !isalpha (cssRule[3]))
{
weight.typed_data.value = +1;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "600", 3) && !isalpha (cssRule[3]))
{
weight.typed_data.value = +2;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "bold", 4) || (!strncasecmp (cssRule, "700", 3) && !isalpha (cssRule[3])))
{
weight.typed_data.value = +3;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "800", 3) && !isalpha (cssRule[3]))
{
weight.typed_data.value = +4;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "900", 3) && !isalpha (cssRule[3]))
{
weight.typed_data.value = +5;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "inherit", 7) || !strncasecmp (cssRule, "bolder", 6) || !strncasecmp (cssRule, "lighter", 7))
{
/* not implemented */
cssRule = SkipWord (cssRule);
return (cssRule);
}
else
return (cssRule);
/*
* Here we have to reduce since only two font weight values are supported
* by the Thot presentation API.
*/
if (weight.typed_data.value > 0)
weight.typed_data.value = WeightBold;
else
weight.typed_data.value = WeightNormal;
/* install the new presentation */
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRWeight, element, tsch, context, weight);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFontWeight: parse a CSS font weight string
we expect the input string describing the attribute to be
normal, bold, bolder, lighter, 100, 200, 300, ... 900, inherit.
----------------------------------------------------------------------*/
static char *ParseCSSFontWeight (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
char *ptr;
ptr = cssRule;
cssRule = ParseACSSFontWeight (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = SkipValue ("Invalid font-weight value", cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFontVariant: parse a CSS font variant string
we expect the input string describing the attribute to be
normal or small-caps
----------------------------------------------------------------------*/
static char *ParseACSSFontVariant (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue style;
style.typed_data.value = 0;
style.typed_data.unit = UNIT_REL;
style.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "small-caps", 10))
{
/* Not supported yet */
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "normal", 6))
{
/* Not supported yet */
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/* Not supported yet */
cssRule = SkipWord (cssRule);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFontVariant: parse a CSS font variant string
we expect the input string describing the attribute to be
normal or small-caps
----------------------------------------------------------------------*/
static char *ParseCSSFontVariant (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
char *ptr;
ptr = cssRule;
cssRule = ParseACSSFontVariant (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = SkipValue ("Invalid font-variant value", cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFontStyle: parse a CSS font style string
we expect the input string describing the attribute to be
italic, oblique or normal
----------------------------------------------------------------------*/
static char *ParseACSSFontStyle (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue style;
PresentationValue size;
style.typed_data.value = 0;
style.typed_data.unit = UNIT_REL;
style.typed_data.real = FALSE;
size.typed_data.value = 0;
size.typed_data.unit = UNIT_REL;
size.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "italic", 6))
{
style.typed_data.value = StyleItalics;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "oblique", 7))
{
style.typed_data.value = StyleOblique;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "normal", 6))
{
style.typed_data.value = StyleRoman;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/* not implemented */
cssRule = SkipWord (cssRule);
return (cssRule);
}
else
/* invalid font style */
return (cssRule);
/*
* install the new presentation.
*/
if (style.typed_data.value != 0 && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRStyle, element, tsch, context, style);
}
if (size.typed_data.value != 0 && DoApply)
{
PresentationValue previous_size;
if (!TtaGetStylePresentation (PRSize, element, tsch, context, &previous_size))
{
/* !!!!!!!!!!!!!!!!!!!!!!!! Unite + relatif !!!!!!!!!!!!!!!! */
size.typed_data.value += previous_size.typed_data.value;
TtaSetStylePresentation (PRSize, element, tsch, context, size);
}
else
{
size.typed_data.value = 10;
TtaSetStylePresentation (PRSize, element, tsch, context, size);
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFontStyle: parse a CSS font style string
we expect the input string describing the attribute to be
italic, oblique or normal
----------------------------------------------------------------------*/
static char *ParseCSSFontStyle (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
char *ptr;
ptr = cssRule;
cssRule = ParseACSSFontStyle (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = SkipValue ("Invalid font-style value", cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFont: parse a CSS font attribute string
we expect the input string describing the attribute to be
!!!!!!
----------------------------------------------------------------------*/
static char *ParseCSSFont (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
char *ptr;
int skippedNL;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "caption", 7))
cssRule += 7;
else if (!strncasecmp (cssRule, "icon", 4))
cssRule += 4;
else if (!strncasecmp (cssRule, "menu", 4))
cssRule += 4;
else if (!strncasecmp (cssRule, "message-box", 11))
cssRule += 11;
else if (!strncasecmp (cssRule, "small-caption", 13))
cssRule += 13;
else if (!strncasecmp (cssRule, "status-bar", 10))
cssRule += 10;
else if (!strncasecmp (cssRule, "inherit", 7))
cssRule += 7;
else
{
skippedNL = NewLineSkipped;
cssRule = ParseACSSFontStyle (element, tsch, context, cssRule, css, isHTML);
NewLineSkipped = skippedNL;
cssRule = ParseACSSFontVariant (element, tsch, context, cssRule, css, isHTML);
NewLineSkipped = skippedNL;
cssRule = ParseACSSFontWeight (element, tsch, context, cssRule, css, isHTML);
NewLineSkipped = skippedNL;
ptr = cssRule;
if (*cssRule != ';' && *cssRule != EOS)
cssRule = ParseCSSFontSize (element, tsch, context, cssRule, css, isHTML);
NewLineSkipped = skippedNL;
if (*cssRule != ';' && *cssRule != EOS)
cssRule = ParseCSSFontFamily (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
cssRule = SkipValue ("Invalid font value", cssRule);
}
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule != ';' && *cssRule != EOS)
cssRule = SkipValue ("Invalid font value", cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSTextDecoration: parse a CSS text decor string
we expect the input string describing the attribute to be
underline, overline, line-through, blink or none.
----------------------------------------------------------------------*/
static char *ParseCSSTextDecoration (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue decor;
decor.typed_data.value = 0;
decor.typed_data.unit = UNIT_REL;
decor.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "none", 4))
{
decor.typed_data.value = NoUnderline;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "underline", 9))
{
decor.typed_data.value = Underline;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "overline", 8))
{
decor.typed_data.value = Overline;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "line-through", 12))
{
decor.typed_data.value = CrossOut;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "blink", 5))
{
/* the blink text-decoration attribute is not supported */
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
cssRule = SkipWord (cssRule);
return (cssRule);
}
else
{
cssRule = SkipValue ("Invalid text-decoration value", cssRule);
return (cssRule);
}
/*
* install the new presentation.
*/
if (decor.typed_data.value && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRUnderline, element, tsch, context, decor);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSHeight: parse a CSS height attribute
----------------------------------------------------------------------*/
static char *ParseCSSHeight (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue val;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
if (!strncasecmp (cssRule, "auto", 4))
{
val.typed_data.unit = VALUE_AUTO;
val.typed_data.value = 0;
val.typed_data.real = FALSE;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSUnit (cssRule, &val);
if (val.typed_data.value != 0 &&
(val.typed_data.unit == UNIT_INVALID ||
val.typed_data.unit == UNIT_BOX))
{
CSSParseError ("height value", ptr, cssRule);
val.typed_data.unit = UNIT_PX;
}
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation */
TtaSetStylePresentation (PRHeight, element, tsch, context, val);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSWidth: parse a CSS width attribute
----------------------------------------------------------------------*/
static char *ParseCSSWidth (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue val;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
if (!strncasecmp (cssRule, "auto", 4))
{
val.typed_data.unit = VALUE_AUTO;
val.typed_data.value = 0;
val.typed_data.real = FALSE;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSUnit (cssRule, &val);
if (val.typed_data.value != 0 &&
(val.typed_data.unit == UNIT_INVALID ||
val.typed_data.unit == UNIT_BOX))
{
CSSParseError ("Invalid width value", ptr, cssRule);
val.typed_data.unit = UNIT_PX;
}
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation */
TtaSetStylePresentation (PRWidth, element, tsch, context, val);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSMarginTop: parse a CSS margin-top attribute
----------------------------------------------------------------------*/
static char *ParseCSSMarginTop (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue margin;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
if (!strncasecmp (cssRule, "auto", 4))
{
margin.typed_data.unit = VALUE_AUTO;
margin.typed_data.value = 0;
margin.typed_data.real = FALSE;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSUnit (cssRule, &margin);
if (margin.typed_data.value != 0 &&
(margin.typed_data.unit == UNIT_INVALID ||
margin.typed_data.unit == UNIT_BOX))
CSSParseError ("Invalid margin-top value", ptr, cssRule);
else if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRMarginTop, element, tsch, context, margin);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSMarginBottom: parse a CSS margin-bottom attribute
----------------------------------------------------------------------*/
static char *ParseCSSMarginBottom (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue margin;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
if (!strncasecmp (cssRule, "auto", 4))
{
margin.typed_data.unit = VALUE_AUTO;
margin.typed_data.value = 0;
margin.typed_data.real = FALSE;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSUnit (cssRule, &margin);
if (margin.typed_data.value != 0 &&
(margin.typed_data.unit == UNIT_INVALID ||
margin.typed_data.unit == UNIT_BOX))
CSSParseError ("Invalid margin-bottom value", ptr, cssRule);
else if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRMarginBottom, element, tsch, context, margin);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSMarginLeft: parse a CSS margin-left attribute string
----------------------------------------------------------------------*/
static char *ParseCSSMarginLeft (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue margin;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
if (!strncasecmp (cssRule, "auto", 4))
{
margin.typed_data.unit = VALUE_AUTO;
margin.typed_data.value = 0;
margin.typed_data.real = FALSE;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSUnit (cssRule, &margin);
if (margin.typed_data.value != 0 &&
(margin.typed_data.unit == UNIT_INVALID ||
margin.typed_data.unit == UNIT_BOX))
CSSParseError ("Invalid margin-left value", ptr, cssRule);
else if (DoApply)
if (margin.typed_data.unit != UNIT_INVALID && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRMarginLeft, element, tsch, context, margin);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSMarginRight: parse a CSS margin-right attribute string
----------------------------------------------------------------------*/
static char *ParseCSSMarginRight (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue margin;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
if (!strncasecmp (cssRule, "auto", 4))
{
margin.typed_data.unit = VALUE_AUTO;
margin.typed_data.value = 0;
margin.typed_data.real = FALSE;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSUnit (cssRule, &margin);
if (margin.typed_data.value != 0 &&
(margin.typed_data.unit == UNIT_INVALID ||
margin.typed_data.unit == UNIT_BOX))
CSSParseError ("Invalid margin-right value", ptr, cssRule);
else if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRMarginRight, element, tsch, context, margin);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSMargin: parse a CSS margin attribute string
----------------------------------------------------------------------*/
static char *ParseCSSMargin (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
char *ptrT, *ptrR, *ptrB, *ptrL;
int skippedNL;
ptrT = SkipBlanksAndComments (cssRule);
/* First parse Margin-Top */
ptrR = ParseCSSMarginTop (element, tsch, context, ptrT, css, isHTML);
ptrR = SkipBlanksAndComments (ptrR);
if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',')
{
skippedNL = NewLineSkipped;
cssRule = ptrR;
/* apply the Margin-Top to all */
ptrR = ParseCSSMarginRight (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSMarginBottom (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSMarginLeft (element, tsch, context, ptrT, css, isHTML);
}
else
{
/* parse Margin-Right */
ptrB = ParseCSSMarginRight (element, tsch, context, ptrR, css, isHTML);
ptrB = SkipBlanksAndComments (ptrB);
if (*ptrB == ';' || *ptrB == EOS || *ptrB == ',')
{
skippedNL = NewLineSkipped;
cssRule = ptrB;
/* apply the Margin-Top to Margin-Bottom */
ptrB = ParseCSSMarginBottom (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
/* apply the Margin-Right to Margin-Left */
ptrB = ParseCSSMarginLeft (element, tsch, context, ptrR, css, isHTML);
}
else
{
/* parse Margin-Bottom */
ptrL = ParseCSSMarginBottom (element, tsch, context, ptrB, css, isHTML);
ptrL = SkipBlanksAndComments (ptrL);
if (*ptrL == ';' || *ptrL == EOS || *ptrL == ',')
{
cssRule = ptrL;
/* apply the Margin-Right to Margin-Left */
ptrL = ParseCSSMarginLeft (element, tsch, context, ptrR, css, isHTML);
}
else
/* parse Margin-Left */
cssRule = ParseCSSMarginLeft (element, tsch, context, ptrL, css, isHTML);
cssRule = SkipBlanksAndComments (cssRule);
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPaddingTop: parse a CSS PaddingTop attribute string
----------------------------------------------------------------------*/
static char *ParseCSSPaddingTop (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue padding;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &padding);
if (padding.typed_data.value != 0 &&
(padding.typed_data.unit == UNIT_INVALID ||
padding.typed_data.unit == UNIT_BOX))
{
CSSParseError ("Invalid padding-top value", ptr, cssRule);
padding.typed_data.value = 0;
}
else if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRPaddingTop, element, tsch, context, padding);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPaddingBottom: parse a CSS PaddingBottom attribute string
----------------------------------------------------------------------*/
static char *ParseCSSPaddingBottom (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue padding;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &padding);
if (padding.typed_data.value == 0)
padding.typed_data.unit = UNIT_EM;
if (padding.typed_data.value != 0 &&
(padding.typed_data.unit == UNIT_INVALID ||
padding.typed_data.unit == UNIT_BOX))
{
CSSParseError ("Invalid padding-bottom value", ptr, cssRule);
padding.typed_data.value = 0;
}
else if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRPaddingBottom, element, tsch, context, padding);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPaddingLeft: parse a CSS PaddingLeft attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSPaddingLeft (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue padding;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &padding);
if (padding.typed_data.value == 0)
padding.typed_data.unit = UNIT_EM;
if (padding.typed_data.value != 0 &&
(padding.typed_data.unit == UNIT_INVALID ||
padding.typed_data.unit == UNIT_BOX))
{
CSSParseError ("Invalid padding-left value", ptr, cssRule);
padding.typed_data.value = 0;
}
else if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRPaddingLeft, element, tsch, context, padding);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPaddingRight: parse a CSS PaddingRight attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSPaddingRight (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue padding;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &padding);
if (padding.typed_data.value == 0)
padding.typed_data.unit = UNIT_EM;
if (padding.typed_data.value != 0 &&
(padding.typed_data.unit == UNIT_INVALID ||
padding.typed_data.unit == UNIT_BOX))
{
CSSParseError ("Invalid padding-right value", ptr, cssRule);
padding.typed_data.value = 0;
}
else if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRPaddingRight, element, tsch, context, padding);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPadding: parse a CSS padding attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSPadding (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
char *ptrT, *ptrR, *ptrB, *ptrL;
int skippedNL;
ptrT = SkipBlanksAndComments (cssRule);
/* First parse Padding-Top */
ptrR = ParseCSSPaddingTop (element, tsch, context, ptrT, css, isHTML);
ptrR = SkipBlanksAndComments (ptrR);
if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',')
{
skippedNL = NewLineSkipped;
cssRule = ptrR;
/* apply the Padding-Top to all */
ptrR = ParseCSSPaddingRight (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSPaddingBottom (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
ptrR = ParseCSSPaddingLeft (element, tsch, context, ptrT, css, isHTML);
}
else
{
/* parse Padding-Right */
ptrB = ParseCSSPaddingRight (element, tsch, context, ptrR, css, isHTML);
ptrB = SkipBlanksAndComments (ptrB);
if (*ptrB == ';' || *ptrB == EOS || *ptrB == ',')
{
skippedNL = NewLineSkipped;
cssRule = ptrB;
/* apply the Padding-Top to Padding-Bottom */
ptrB = ParseCSSPaddingBottom (element, tsch, context, ptrT, css, isHTML);
NewLineSkipped = skippedNL;
/* apply the Padding-Right to Padding-Left */
ptrB = ParseCSSPaddingLeft (element, tsch, context, ptrR, css, isHTML);
}
else
{
/* parse Padding-Bottom */
ptrL = ParseCSSPaddingBottom (element, tsch, context, ptrB, css, isHTML);
ptrL = SkipBlanksAndComments (ptrL);
if (*ptrL == ';' || *ptrL == EOS || *ptrL == ',')
{
cssRule = ptrL;
/* apply the Padding-Right to Padding-Left */
ptrL = ParseCSSPaddingLeft (element, tsch, context, ptrR, css, isHTML);
}
else
/* parse Padding-Left */
cssRule = ParseCSSPaddingLeft (element, tsch, context, ptrL, css, isHTML);
cssRule = SkipBlanksAndComments (cssRule);
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSForeground: parse a CSS foreground attribute
----------------------------------------------------------------------*/
static char *ParseCSSForeground (Element element, PSchema tsch,
PresentationContext context,
char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue best;
char *p;
p = cssRule;
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != UNIT_INVALID && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
if (*cssRule != EOS && *cssRule !=';')
{
cssRule = SkipProperty (cssRule, FALSE);
CSSParseError ("Invalid value", p, cssRule);
}
else
/* install the new presentation */
TtaSetStylePresentation (PRForeground, element, tsch, context, best);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBackgroundColor: parse a CSS background color attribute
----------------------------------------------------------------------*/
static char *ParseCSSBackgroundColor (Element element, PSchema tsch,
PresentationContext context,
char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue best;
best.typed_data.unit = UNIT_INVALID;
best.typed_data.real = FALSE;
if (!strncasecmp (cssRule, "transparent", 11))
{
best.typed_data.value = PATTERN_NONE;
best.typed_data.unit = UNIT_REL;
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRFillPattern, element, tsch, context, best);
}
cssRule = SkipWord (cssRule);
}
else
{
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != UNIT_INVALID && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation. */
TtaSetStylePresentation (PRBackground, element, tsch, context, best);
/* thot specificity: need to set fill pattern for background color */
best.typed_data.value = PATTERN_BACKGROUND;
best.typed_data.unit = UNIT_REL;
TtaSetStylePresentation (PRFillPattern, element, tsch, context, best);
best.typed_data.value = 1;
best.typed_data.unit = UNIT_REL;
TtaSetStylePresentation (PRShowBox, element, tsch, context, best);
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSUrl: parse an URL
----------------------------------------------------------------------*/
static char *ParseCSSUrl (char *cssRule, char **url)
{
char saved;
char *base, *ptr;
cssRule = SkipBlanksAndComments (cssRule);
saved = *cssRule;
if (*cssRule == '(')
{
cssRule++;
cssRule = SkipBlanksAndComments (cssRule);
/*** Escaped quotes are not handled. See function SkipQuotedString */
if (*cssRule == '"')
{
cssRule++;
base = cssRule;
while (*cssRule != EOS && *cssRule != '"')
cssRule++;
}
else if (*cssRule == '\'')
{
cssRule++;
base = cssRule;
while (*cssRule != EOS && *cssRule != '\'')
cssRule++;
}
else
{
base = cssRule;
while (*cssRule != EOS && *cssRule != ')')
cssRule++;
}
/* keep the current position */
ptr = cssRule;
if (saved == ')')
{
/* remove extra spaces */
if (cssRule[-1] == SPACE)
{
*cssRule = SPACE;
cssRule--;
while (cssRule[-1] == SPACE)
cssRule--;
}
}
saved = *cssRule;
*cssRule = EOS;
*url = TtaStrdup (base);
*cssRule = saved;
if (saved == '"' || saved == '\'')
/* we need to skip the quote character and possible spaces */
{
cssRule++;
cssRule = SkipBlanksAndComments (cssRule);
}
else
cssRule = ptr;
}
cssRule++;
return cssRule;
}
/*----------------------------------------------------------------------
ParseSVGStroke: parse a SVG stroke property
----------------------------------------------------------------------*/
static char *ParseSVGStroke (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue best;
char *url;
best.typed_data.unit = UNIT_INVALID;
best.typed_data.real = FALSE;
if (!strncasecmp (cssRule, "none", 4))
{
best.typed_data.value = -2; /* -2 means transparent */
best.typed_data.unit = UNIT_REL;
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRForeground, element, tsch, context, best);
}
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "currentColor", 12))
{
/* **** do something here to inherit color */;
}
else if (!strncasecmp (cssRule, "url", 3))
{
cssRule += 3;
cssRule = ParseCSSUrl (cssRule, &url);
/* **** do something with the url ***** */;
TtaFreeMemory (url);
/* **** caution: another color value may follow the uri (in case
the uri could ne be dereferenced) *** */
}
else
{
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != UNIT_INVALID && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation */
TtaSetStylePresentation (PRForeground, element, tsch, context, best);
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseSVGFill: parse a SVG fill property
----------------------------------------------------------------------*/
static char *ParseSVGFill (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue best;
char *url;
best.typed_data.unit = UNIT_INVALID;
best.typed_data.real = FALSE;
if (!strncasecmp (cssRule, "none", 4))
{
best.typed_data.value = PATTERN_NONE;
best.typed_data.unit = UNIT_REL;
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PRFillPattern, element, tsch, context, best);
}
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "currentColor", 12))
{
/* **** do something here to inherit color */;
}
else if (!strncasecmp (cssRule, "url", 3))
{
cssRule += 3;
cssRule = ParseCSSUrl (cssRule, &url);
/* **** do something with the url ***** */;
TtaFreeMemory (url);
/* **** caution: another color value may follow the uri (in case
the uri could ne be dereferenced) *** */
}
else
{
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != UNIT_INVALID && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation. */
TtaSetStylePresentation (PRBackground, element, tsch, context, best);
/* thot specificity: need to set fill pattern for background color */
best.typed_data.value = PATTERN_BACKGROUND;
best.typed_data.unit = UNIT_REL;
TtaSetStylePresentation (PRFillPattern, element, tsch, context, best);
}
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseSVGOpacity: parse a SVG fill property
----------------------------------------------------------------------*/
static char *ParseSVGOpacity (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue best;
best.typed_data.unit = UNIT_INVALID;
best.typed_data.real = FALSE;
cssRule = ParseClampedUnit (cssRule, &best);
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation. */
TtaSetStylePresentation (PROpacity, element,
tsch, context, best);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseSVGOpacity: parse a SVG fill property
----------------------------------------------------------------------*/
static char *ParseSVGStrokeOpacity (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue best;
best.typed_data.unit = UNIT_INVALID;
best.typed_data.real = FALSE;
cssRule = ParseClampedUnit (cssRule, &best);
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation. */
TtaSetStylePresentation (PRStrokeOpacity, element,
tsch, context, best);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseSVGOpacity: parse a SVG fill property
----------------------------------------------------------------------*/
static char *ParseSVGFillOpacity (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue best;
best.typed_data.unit = UNIT_INVALID;
best.typed_data.real = FALSE;
cssRule = ParseClampedUnit (cssRule, &best);
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
/* install the new presentation. */
TtaSetStylePresentation (PRFillOpacity, element,
tsch, context, best);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBackgroundImageCallback: Callback called asynchronously by
FetchImage when a background image has been fetched.
----------------------------------------------------------------------*/
void ParseCSSBackgroundImageCallback (Document doc, Element element,
char *file, void *extra,
ThotBool isnew)
{
DisplayMode dispMode = DisplayImmediately;
BackgroundImageCallbackPtr callblock;
Element el;
PSchema tsch;
CSSInfoPtr css;
PInfoPtr pInfo;
PresentationContext ctxt;
PresentationValue image;
PresentationValue value;
ThotBool enabled;
callblock = (BackgroundImageCallbackPtr) extra;
if (callblock == NULL)
return;
css = NULL;
el = callblock->el;
tsch = callblock->tsch;
ctxt = callblock->ctxt;
if (doc == 0 && !isnew)
/* apply to the current document only */
doc = ctxt->doc;
if (doc)
{
/* avoid too many redisplay */
dispMode = TtaGetDisplayMode (doc);
if (dispMode == DisplayImmediately)
TtaSetDisplayMode (doc, DeferredDisplay);
}
else
{
/* check if the CSS still exists */
css = CSSList;
while (css && css != callblock->css)
css = css->NextCSS;
if (css == NULL)
tsch = NULL;
}
if (el || tsch)
{
/* Ok the image was fetched, finish the background-image handling */
image.typed_data.unit = UNIT_REL;
image.typed_data.real = FALSE;
image.pointer = file;
TtaSetStylePresentation (PRBackgroundPicture, el, tsch, ctxt, image);
/* enforce the showbox */
value.typed_data.value = 1;
value.typed_data.unit = UNIT_REL;
value.typed_data.real = FALSE;
TtaSetStylePresentation (PRShowBox, el, tsch, ctxt, value);
/* check if the context can be freed */
ctxt->uses -= 1;
if (ctxt->uses == 0)
/* no other image loading */
TtaFreeMemory (ctxt);
}
TtaFreeMemory (callblock);
/* restore the display mode */
if (doc)
{
if (dispMode == DisplayImmediately)
TtaSetDisplayMode (doc, dispMode);
}
else if (css)
{
for (doc = 1; doc < DocumentTableLength; doc++)
if (css->infos[doc] &&
/* don't manage a document used by make book */
(DocumentMeta[doc] == NULL ||
DocumentMeta[doc]->method != CE_MAKEBOOK))
{
pInfo = css->infos[doc];
enabled = FALSE;
while (pInfo && !enabled)
{
enabled = pInfo->PiEnabled;
pInfo = pInfo->PiNext;
}
/* Change the Display Mode to take into account the new presentation */
dispMode = TtaGetDisplayMode (doc);
if (dispMode == DisplayImmediately)
{
TtaSetDisplayMode (doc, NoComputedDisplay);
/* Restore the display mode */
TtaSetDisplayMode (doc, dispMode);
}
}
}
}
/*----------------------------------------------------------------------
GetCSSBackgroundURL searches a CSS BackgroundImage url within
the cssRule.
Returns NULL or a new allocated url string.
----------------------------------------------------------------------*/
char *GetCSSBackgroundURL (char *cssRule)
{
char *b, *url;
url = NULL;
b = strstr (cssRule, "url");
if (b)
b = ParseCSSUrl (url, &url);
return (url);
}
/*----------------------------------------------------------------------
ParseCSSContent: parse a CSS content value
----------------------------------------------------------------------*/
static char *ParseCSSContent (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
char *p, quoteChar, *url;
cssRule = SkipBlanksAndComments (cssRule);
p = cssRule;
if (!strncasecmp (cssRule, "url", 3))
{
cssRule += 3;
cssRule = ParseCSSUrl (cssRule, &url);
TtaFreeMemory (url);
}
else if (*cssRule == '"' || *cssRule == '\'')
{
quoteChar = *cssRule;
cssRule++;
cssRule = SkipQuotedString (cssRule, quoteChar);
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule != EOS && *cssRule !=';')
cssRule = SkipProperty (cssRule, FALSE);
}
else
cssRule = SkipProperty (cssRule, FALSE);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBackgroundImage: parse a CSS BackgroundImage attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBackgroundImage (Element element, PSchema tsch,
PresentationContext ctxt,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
Element el;
BackgroundImageCallbackPtr callblock;
PresentationValue image, value;
char *url;
char *bg_image;
char tempname[MAX_LENGTH];
char imgname[MAX_LENGTH];
if (element)
el = element;
else
/* default element for FetchImage */
el = TtaGetMainRoot (ctxt->doc);
url = NULL;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "none", 4))
{
cssRule += 4;
if (tsch)
cssRule = CheckImportantRule (cssRule, ctxt);
if (DoApply)
{
/* no background image */
image.pointer = NULL;
TtaSetStylePresentation (PRBackgroundPicture, element, tsch, ctxt, image);
/* no background color */
value.typed_data.unit = UNIT_INVALID;
value.typed_data.real = FALSE;
value.typed_data.value = PATTERN_NONE;
value.typed_data.unit = UNIT_REL;
TtaSetStylePresentation (PRFillPattern, element, tsch, ctxt, value);
}
}
else if (!strncasecmp (cssRule, "url", 3))
{
cssRule += 3;
cssRule = ParseCSSUrl (cssRule, &url);
if (ctxt->destroy)
{
/* remove the background image PRule */
image.pointer = NULL;
TtaSetStylePresentation (PRBackgroundPicture, element, tsch, ctxt, image);
if (TtaGetStylePresentation (PRFillPattern, element, tsch, ctxt, &value) < 0)
{
/* there is no FillPattern rule -> remove ShowBox rule */
value.typed_data.value = 1;
value.typed_data.unit = UNIT_REL;
value.typed_data.real = FALSE;
TtaSetStylePresentation (PRShowBox, element, tsch, ctxt, value);
}
}
else if (url)
{
bg_image = TtaGetEnvString ("ENABLE_BG_IMAGES");
if (bg_image == NULL || !strcasecmp (bg_image, "yes"))
/* background images are enabled */
{
if (tsch)
cssRule = CheckImportantRule (cssRule, ctxt);
callblock = (BackgroundImageCallbackPtr) TtaGetMemory (sizeof (BackgroundImageCallbackBlock));
if (callblock)
{
callblock->el = element;
callblock->tsch = tsch;
callblock->css = css;
callblock->ctxt = ctxt;
/* new use of the context */
ctxt->uses += 1;
/* check if the image url is related to an external CSS */
if (css)
{
if (css->url)
/* the image concerns a CSS file */
NormalizeURL (url, 0, tempname, imgname, css->url);
else
/* the image concerns a style element */
NormalizeURL (url, ctxt->doc, tempname, imgname, NULL);
/* fetch and display background image of element */
FetchImage (0, el, tempname, AMAYA_LOAD_IMAGE,
ParseCSSBackgroundImageCallback, callblock);
}
else
FetchImage (ctxt->doc, el, url, AMAYA_LOAD_IMAGE,
ParseCSSBackgroundImageCallback, callblock);
}
}
}
if (url)
TtaFreeMemory (url);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBackgroundRepeat: parse a CSS BackgroundRepeat attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBackgroundRepeat (Element element, PSchema tsch,
PresentationContext ctxt,
char *cssRule, CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue repeat;
repeat.typed_data.value = REALSIZE;
repeat.typed_data.unit = UNIT_BOX;
repeat.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "no-repeat", 9))
repeat.typed_data.value = REALSIZE;
else if (!strncasecmp (cssRule, "repeat-y", 8))
repeat.typed_data.value = YREPEAT;
else if (!strncasecmp (cssRule, "repeat-x", 8))
repeat.typed_data.value = XREPEAT;
else if (!strncasecmp (cssRule, "repeat", 6))
repeat.typed_data.value = REPEAT;
else
return (cssRule);
/* install the new presentation */
if (DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, ctxt);
TtaSetStylePresentation (PRPictureMode, element, tsch, ctxt, repeat);
}
cssRule = SkipWord (cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBackgroundAttachment: parse a CSS BackgroundAttachment
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBackgroundAttachment (Element element, PSchema tsch,
PresentationContext ctxt,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "scroll", 6))
{
/* force no-repeat for that background image */
ptr = "no-repeat";
ParseCSSBackgroundRepeat (element, tsch, ctxt, ptr, css, isHTML);
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "fixed", 5))
{
/* force no-repeat for that background image */
ptr = "no-repeat";
ParseCSSBackgroundRepeat (element, tsch, ctxt, ptr, css, isHTML);
cssRule = SkipWord (cssRule);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBackgroundPosition: parse a CSS BackgroundPosition
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBackgroundPosition (Element element, PSchema tsch,
PresentationContext ctxt,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue repeat;
char *ptr;
ThotBool ok;
cssRule = SkipBlanksAndComments (cssRule);
ok = TRUE;
if (!strncasecmp (cssRule, "left", 4))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "right", 5))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "center", 6))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "top", 3))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "bottom", 6))
cssRule = SkipWord (cssRule);
else if (isdigit (*cssRule) || *cssRule == '.')
{
while (*cssRule != EOS && *cssRule != SPACE &&
*cssRule != ',' && *cssRule != ';')
cssRule++;
}
else
ok = FALSE;
if (ok && DoApply)
{
/* force no-repeat for that background image */
ptr = "no-repeat";
ParseCSSBackgroundRepeat (element, tsch, ctxt, ptr, css, isHTML);
/* force realsize for the background image */
repeat.typed_data.value = REALSIZE;
repeat.typed_data.unit = UNIT_REL;
repeat.typed_data.real = FALSE;
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, ctxt);
/*TtaSetStylePresentation (PRPictureMode, element, tsch, ctxt, repeat);*/
/* check the second value */
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule != ';' && *cssRule != '}' && *cssRule != EOS)
cssRule = ParseCSSBackgroundPosition (element, tsch, ctxt,
cssRule, css, isHTML);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBackground: parse a CSS background attribute
----------------------------------------------------------------------*/
static char *ParseCSSBackground (Element element, PSchema tsch,
PresentationContext ctxt, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
char *ptr;
int skippedNL;
cssRule = SkipBlanksAndComments (cssRule);
while (*cssRule != ';' && *cssRule != EOS && *cssRule != ',')
{
/* perhaps a Background Image */
if (!strncasecmp (cssRule, "url", 3) || !strncasecmp (cssRule, "none", 4))
cssRule = ParseCSSBackgroundImage (element, tsch, ctxt, cssRule,
css, isHTML);
/* perhaps a Background Attachment */
else if (!strncasecmp (cssRule, "scroll", 6) ||
!strncasecmp (cssRule, "fixed", 5))
cssRule = ParseCSSBackgroundAttachment (element, tsch, ctxt,
cssRule, css, isHTML);
/* perhaps a Background Repeat */
else if (!strncasecmp (cssRule, "no-repeat", 9) ||
!strncasecmp (cssRule, "repeat-y", 8) ||
!strncasecmp (cssRule, "repeat-x", 8) ||
!strncasecmp (cssRule, "repeat", 6))
cssRule = ParseCSSBackgroundRepeat (element, tsch, ctxt,
cssRule, css, isHTML);
/* perhaps a Background Position */
else if (!strncasecmp (cssRule, "left", 4) ||
!strncasecmp (cssRule, "right", 5) ||
!strncasecmp (cssRule, "center", 6) ||
!strncasecmp (cssRule, "top", 3) ||
!strncasecmp (cssRule, "bottom", 6) ||
isdigit (*cssRule) || *cssRule == '.')
cssRule = ParseCSSBackgroundPosition (element, tsch, ctxt,
cssRule, css, isHTML);
/* perhaps a Background Color */
else
{
skippedNL = NewLineSkipped;
/* check if the rule has been found */
ptr = cssRule;
cssRule = ParseCSSBackgroundColor (element, tsch, ctxt,
cssRule, css, isHTML);
if (ptr == cssRule)
{
NewLineSkipped = skippedNL;
/* rule not found */
cssRule = SkipProperty (cssRule, FALSE);
}
}
cssRule = SkipBlanksAndComments (cssRule);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPageBreakBefore: parse a CSS page-break-before attribute
----------------------------------------------------------------------*/
static char *ParseCSSPageBreakBefore (Element element, PSchema tsch,
PresentationContext ctxt, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue page;
page.typed_data.unit = UNIT_INVALID;
page.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "auto", 4))
page.typed_data.value = PageAuto;
else if (!strncasecmp (cssRule, "always", 6))
{
page.typed_data.unit = UNIT_REL;
page.typed_data.value = PageAlways;
}
else if (!strncasecmp (cssRule, "avoid", 5))
{
page.typed_data.unit = UNIT_REL;
page.typed_data.value = PageAvoid;
}
else if (!strncasecmp (cssRule, "left", 4))
{
page.typed_data.unit = UNIT_REL;
page.typed_data.value = PageLeft;
}
else if (!strncasecmp (cssRule, "right", 5))
{
page.typed_data.unit = UNIT_REL;
page.typed_data.value = PageRight;
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/*page.typed_data.unit = UNIT_REL;*/
page.typed_data.value = PageInherit;
}
cssRule = SkipWord (cssRule);
/* install the new presentation */
if (page.typed_data.unit == UNIT_REL &&
page.typed_data.value == PageAlways && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, ctxt);
TtaSetStylePresentation (PRPageBefore, element, tsch, ctxt, page);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPageBreakAfter: parse a CSS page-break-after attribute
----------------------------------------------------------------------*/
static char *ParseCSSPageBreakAfter (Element element, PSchema tsch,
PresentationContext ctxt,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue page;
page.typed_data.unit = UNIT_INVALID;
page.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "auto", 4))
page.typed_data.value = PageAuto;
else if (!strncasecmp (cssRule, "always", 6))
{
page.typed_data.unit = UNIT_REL;
page.typed_data.value = PageAlways;
}
else if (!strncasecmp (cssRule, "avoid", 5))
{
page.typed_data.unit = UNIT_REL;
page.typed_data.value = PageAvoid;
}
else if (!strncasecmp (cssRule, "left", 4))
{
page.typed_data.unit = UNIT_REL;
page.typed_data.value = PageLeft;
}
else if (!strncasecmp (cssRule, "right", 5))
{
page.typed_data.unit = UNIT_REL;
page.typed_data.value = PageRight;
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/*page.typed_data.unit = UNIT_REL;*/
page.typed_data.value = PageInherit;
}
cssRule = SkipWord (cssRule);
/* install the new presentation */
/*if (page.typed_data.unit == UNIT_REL && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, ctxt);
TtaSetStylePresentation (PRPageAfter, element, tsch, ctxt, page);
}*/
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPageBreakInside: parse a CSS page-break-inside attribute
----------------------------------------------------------------------*/
static char *ParseCSSPageBreakInside (Element element, PSchema tsch,
PresentationContext ctxt,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue page;
page.typed_data.unit = UNIT_INVALID;
page.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "auto", 4))
{
/*page.typed_data.unit = UNIT_REL;*/
page.typed_data.value = PageAuto;
}
else if (!strncasecmp (cssRule, "avoid", 5))
{
page.typed_data.unit = UNIT_REL;
page.typed_data.value = PageAvoid;
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/*page.typed_data.unit = UNIT_REL;*/
page.typed_data.value = PageInherit;
}
cssRule = SkipWord (cssRule);
/* install the new presentation */
/*if (page.typed_data.unit == UNIT_REL &&
page.typed_data.value == PageAvoid && DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, ctxt);
TtaSetStylePresentation (PRPageInside, element, tsch, ctxt, page);
}*/
return (cssRule);
}
/*----------------------------------------------------------------------
ParseSVGStrokeWidth: parse a SVG stroke-width property value.
----------------------------------------------------------------------*/
static char *ParseSVGStrokeWidth (Element element, PSchema tsch,
PresentationContext ctxt, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue width;
cssRule = SkipBlanksAndComments (cssRule);
width.typed_data.value = 0;
width.typed_data.unit = UNIT_INVALID;
width.typed_data.real = FALSE;
if (isdigit (*cssRule) || *cssRule == '.')
{
cssRule = ParseCSSUnit (cssRule, &width);
if (width.typed_data.unit == UNIT_BOX)
width.typed_data.unit = UNIT_PX;
}
if (width.typed_data.unit != UNIT_INVALID && DoApply)
{
/* check if it's an important rule */
if (tsch)
cssRule = CheckImportantRule (cssRule, ctxt);
TtaSetStylePresentation (PRLineWeight, element, tsch, ctxt, width);
width.typed_data.value = 1;
width.typed_data.unit = UNIT_REL;
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPosition: parse a CSS Position attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSPosition (Element element, PSchema tsch,
PresentationContext ctxt,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
if (!strncasecmp (cssRule, "static", 6))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "relative", 7))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "absolute", 8))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "fixed", 5))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "inherit", 7))
cssRule = SkipWord (cssRule);
else
cssRule = SkipValue ("Invalid Position value", ptr);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSTop: parse a CSS Top attribute
----------------------------------------------------------------------*/
static char *ParseCSSTop (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue val;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
if (!strncasecmp (cssRule, "auto", 4) ||
!strncasecmp (cssRule, "inherit", 7))
{
val.typed_data.unit = VALUE_AUTO;
val.typed_data.value = 0;
val.typed_data.real = FALSE;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSUnit (cssRule, &val);
if (val.typed_data.value != 0 &&
(val.typed_data.unit == UNIT_INVALID ||
val.typed_data.unit == UNIT_BOX))
{
cssRule = SkipValue ("top value", ptr);
val.typed_data.unit = UNIT_PX;
}
/***
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PR, element, tsch, context, val);
}
***/
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSRight: parse a CSS Right attribute
----------------------------------------------------------------------*/
static char *ParseCSSRight (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue val;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
if (!strncasecmp (cssRule, "auto", 4) ||
!strncasecmp (cssRule, "inherit", 7))
{
val.typed_data.unit = VALUE_AUTO;
val.typed_data.value = 0;
val.typed_data.real = FALSE;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSUnit (cssRule, &val);
if (val.typed_data.value != 0 &&
(val.typed_data.unit == UNIT_INVALID ||
val.typed_data.unit == UNIT_BOX))
{
cssRule = SkipValue ("right value", ptr);
val.typed_data.unit = UNIT_PX;
}
/***
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PR, element, tsch, context, val);
}
***/
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBottom: parse a CSS Bottom attribute
----------------------------------------------------------------------*/
static char *ParseCSSBottom (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue val;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
if (!strncasecmp (cssRule, "auto", 4) ||
!strncasecmp (cssRule, "inherit", 7))
{
val.typed_data.unit = VALUE_AUTO;
val.typed_data.value = 0;
val.typed_data.real = FALSE;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSUnit (cssRule, &val);
if (val.typed_data.value != 0 &&
(val.typed_data.unit == UNIT_INVALID ||
val.typed_data.unit == UNIT_BOX))
{
cssRule = SkipValue ("bottom value", ptr);
val.typed_data.unit = UNIT_PX;
}
/***
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PR, element, tsch, context, val);
}
***/
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSLeft: parse a CSS Left attribute
----------------------------------------------------------------------*/
static char *ParseCSSLeft (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue val;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
if (!strncasecmp (cssRule, "auto", 4) ||
!strncasecmp (cssRule, "inherit", 7))
{
val.typed_data.unit = VALUE_AUTO;
val.typed_data.value = 0;
val.typed_data.real = FALSE;
cssRule = SkipWord (cssRule);
}
else
cssRule = ParseCSSUnit (cssRule, &val);
if (val.typed_data.value != 0 &&
(val.typed_data.unit == UNIT_INVALID ||
val.typed_data.unit == UNIT_BOX))
{
cssRule = SkipValue ("left value", ptr);
val.typed_data.unit = UNIT_PX;
}
/***
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PR, element, tsch, context, val);
}
***/
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSZIndex: parse a CSS z-index attribute
----------------------------------------------------------------------*/
static char *ParseCSSZIndex (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue val;
char *ptr;
cssRule = SkipBlanksAndComments (cssRule);
ptr = cssRule;
/* first parse the attribute string */
if (!strncasecmp (cssRule, "auto", 4) ||
!strncasecmp (cssRule, "inherit", 7))
{
val.typed_data.unit = VALUE_AUTO;
val.typed_data.value = 0;
val.typed_data.real = FALSE;
cssRule = SkipWord (cssRule);
}
else
{
cssRule = ParseCSSUnit (cssRule, &val);
if (val.typed_data.unit != UNIT_BOX)
{
cssRule = SkipValue ("z-index value", ptr);
val.typed_data.unit = UNIT_BOX;
}
}
/***
if (DoApply)
{
if (tsch)
cssRule = CheckImportantRule (cssRule, context);
TtaSetStylePresentation (PR, element, tsch, context, val);
}
***/
return (cssRule);
}
/************************************************************************
* *
* FUNCTIONS STYLE DECLARATIONS *
* *
************************************************************************/
/*
* NOTE: Long attribute name MUST be placed before shortened ones !
* e.g. "FONT-SIZE" must be placed before "FONT"
*/
static CSSProperty CSSProperties[] =
{
{"background-color", ParseCSSBackgroundColor},
{"background-image", ParseCSSBackgroundImage},
{"background-repeat", ParseCSSBackgroundRepeat},
{"background-attachment", ParseCSSBackgroundAttachment},
{"background-position", ParseCSSBackgroundPosition},
{"background", ParseCSSBackground},
{"border-top-width", ParseCSSBorderTopWidth},
{"border-right-width", ParseCSSBorderRightWidth},
{"border-bottom-width", ParseCSSBorderBottomWidth},
{"border-left-width", ParseCSSBorderLeftWidth},
{"border-width", ParseCSSBorderWidth},
{"border-top-color", ParseCSSBorderColorTop},
{"border-right-color", ParseCSSBorderColorRight},
{"border-bottom-color", ParseCSSBorderColorBottom},
{"border-left-color", ParseCSSBorderColorLeft},
{"border-color", ParseCSSBorderColor},
{"border-top-style", ParseCSSBorderStyleTop},
{"border-right-style", ParseCSSBorderStyleRight},
{"border-bottom-style", ParseCSSBorderStyleBottom},
{"border-left-style", ParseCSSBorderStyleLeft},
{"border-style", ParseCSSBorderStyle},
{"border-top", ParseCSSBorderTop},
{"border-right", ParseCSSBorderRight},
{"border-bottom", ParseCSSBorderBottom},
{"border-left", ParseCSSBorderLeft},
{"border", ParseCSSBorder},
{"bottom", ParseCSSBottom},
{"clear", ParseCSSClear},
{"color", ParseCSSForeground},
{"content", ParseCSSContent},
{"direction", ParseCSSDirection},
{"display", ParseCSSDisplay},
{"float", ParseCSSFloat},
{"font-family", ParseCSSFontFamily},
{"font-style", ParseCSSFontStyle},
{"font-variant", ParseCSSFontVariant},
{"font-weight", ParseCSSFontWeight},
{"font-size-adjust", ParseCSSFontSizeAdjust},
{"font-size", ParseCSSFontSize},
{"font", ParseCSSFont},
{"height", ParseCSSHeight},
{"left", ParseCSSLeft},
{"letter-spacing", ParseCSSLetterSpacing},
{"line-height", ParseCSSLineHeight},
{"list-style-type", ParseCSSListStyleType},
{"list-style-image", ParseCSSListStyleImage},
{"list-style-position", ParseCSSListStylePosition},
{"list-style", ParseCSSListStyle},
{"margin-bottom", ParseCSSMarginBottom},
{"margin-top", ParseCSSMarginTop},
{"margin-right", ParseCSSMarginRight},
{"margin-left", ParseCSSMarginLeft},
{"margin", ParseCSSMargin},
{"padding-top", ParseCSSPaddingTop},
{"padding-right", ParseCSSPaddingRight},
{"padding-bottom", ParseCSSPaddingBottom},
{"padding-left", ParseCSSPaddingLeft},
{"padding", ParseCSSPadding},
{"page-break-before", ParseCSSPageBreakBefore},
{"page-break-after", ParseCSSPageBreakAfter},
{"page-break-inside", ParseCSSPageBreakInside},
{"position", ParseCSSPosition},
{"right", ParseCSSRight},
{"text-align", ParseCSSTextAlign},
{"text-anchor", ParseCSSTextAnchor},
{"text-indent", ParseCSSTextIndent},
{"text-decoration", ParseCSSTextDecoration},
{"text-transform", ParseCSSTextTransform},
{"top", ParseCSSTop},
{"unicode-bidi", ParseCSSUnicodeBidi},
{"vertical-align", ParseCSSVerticalAlign},
{"white-space", ParseCSSWhiteSpace},
{"width", ParseCSSWidth},
{"word-spacing", ParseCSSWordSpacing},
{"z-index", ParseCSSZIndex},
/* SVG extensions */
{"fill-opacity", ParseSVGFillOpacity},
{"fill", ParseSVGFill},
{"opacity", ParseSVGOpacity},
{"stroke-opacity", ParseSVGStrokeOpacity},
{"stroke-width", ParseSVGStrokeWidth},
{"stroke", ParseSVGStroke}
};
#define NB_CSSSTYLEATTRIBUTE (sizeof(CSSProperties) / sizeof(CSSProperty))
/*----------------------------------------------------------------------
ParseCSSRule: parse a CSS Style string
we expect the input string describing the style to be of the
form: PRORPERTY: DESCRIPTION [ ; PROPERTY: DESCRIPTION ] *
but tolerate incorrect or incomplete input
----------------------------------------------------------------------*/
static void ParseCSSRule (Element element, PSchema tsch,
PresentationContext ctxt, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
DisplayMode dispMode;
char *p = NULL, *next;
char *valueStart;
int lg;
unsigned int i;
ThotBool found;
/* avoid too many redisplay */
dispMode = TtaGetDisplayMode (ctxt->doc);
if (dispMode == DisplayImmediately)
TtaSetDisplayMode (ctxt->doc, DeferredDisplay);
while (*cssRule != EOS)
{
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule < 0x41 || *cssRule > 0x7A ||
(*cssRule > 0x5A && *cssRule < 0x60))
cssRule++;
else if (*cssRule != EOS)
{
found = FALSE;
/* look for the type of property */
for (i = 0; i < NB_CSSSTYLEATTRIBUTE && !found; i++)
{
lg = strlen (CSSProperties[i].name);
if (!strncasecmp (cssRule, CSSProperties[i].name, lg))
{
p = cssRule + lg;
found = TRUE;
i--;
}
}
if (i == NB_CSSSTYLEATTRIBUTE)
cssRule = SkipProperty (cssRule, TRUE);
else
{
/* update index and skip the ":" indicator if present */
p = SkipBlanksAndComments (p);
if (*p == ':')
{
p++;
p = SkipBlanksAndComments (p);
/* try to parse the value associated with this property */
if (CSSProperties[i].parsing_function != NULL)
{
valueStart = p;
p = CSSProperties[i].parsing_function (element, tsch,
ctxt, p, css, isHTML);
if (!element && isHTML)
{
if (ctxt->type == HTML_EL_Input)
/* it's a generic rule for the HTML element input.
Generate a Thot Pres rule for each kind of
input element */
{
ctxt->type = HTML_EL_Text_Input;
p = CSSProperties[i].parsing_function (element,
tsch, ctxt, valueStart, css, isHTML);
ctxt->type = HTML_EL_Password_Input;
p = CSSProperties[i].parsing_function (element,
tsch, ctxt, valueStart, css, isHTML);
ctxt->type = HTML_EL_File_Input;
p = CSSProperties[i].parsing_function (element,
tsch, ctxt, valueStart, css, isHTML);
ctxt->type = HTML_EL_Checkbox_Input;
p = CSSProperties[i].parsing_function (element,
tsch, ctxt, valueStart, css, isHTML);
ctxt->type = HTML_EL_Radio_Input;
p = CSSProperties[i].parsing_function (element,
tsch, ctxt, valueStart, css, isHTML);
ctxt->type = HTML_EL_Submit_Input;
p = CSSProperties[i].parsing_function (element,
tsch, ctxt, valueStart, css, isHTML);
ctxt->type = HTML_EL_Reset_Input;
p = CSSProperties[i].parsing_function (element,
tsch, ctxt, valueStart, css, isHTML);
ctxt->type = HTML_EL_Button_Input;
p = CSSProperties[i].parsing_function (element,
tsch, ctxt, valueStart, css, isHTML);
ctxt->type = HTML_EL_Input;
}
else if (ctxt->type == HTML_EL_ruby)
/* it's a generic rule for the HTML element ruby.
Generate a Thot Pres rule for each kind of
ruby element. */
{
ctxt->type = HTML_EL_simple_ruby;
p = CSSProperties[i].parsing_function (element,
tsch, ctxt, valueStart, css, isHTML);
ctxt->type = HTML_EL_complex_ruby;
p = CSSProperties[i].parsing_function (element,
tsch, ctxt, valueStart, css, isHTML);
ctxt->type = HTML_EL_ruby;
}
}
/* update index and skip the ";" separator if present */
next = SkipBlanksAndComments (p);
if (*next != EOS && *next != ';')
CSSParseError ("Missing closing ';'", cssRule, p);
cssRule = next;
}
}
else
cssRule = SkipProperty (cssRule, TRUE);
}
}
/* next property */
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule == '}')
{
cssRule++;
CSSPrintError ("Invalid character", "}");
cssRule = SkipBlanksAndComments (cssRule);
}
if (*cssRule == ',' ||
*cssRule == ';')
{
cssRule++;
cssRule = SkipBlanksAndComments (cssRule);
}
}
/* restore the display mode */
if (dispMode == DisplayImmediately)
TtaSetDisplayMode (ctxt->doc, dispMode);
}
/*----------------------------------------------------------------------
ParseHTMLSpecificStyle: parse and apply a CSS Style string.
This function must be called when a specific style is applied to an
element.
The parameter specificity is the specificity of the style, 0 if it is
not really a CSS rule.
----------------------------------------------------------------------*/
void ParseHTMLSpecificStyle (Element el, char *cssRule, Document doc,
int specificity, ThotBool destroy)
{
DisplayMode dispMode;
PresentationContext ctxt;
ElementType elType;
ThotBool isHTML;
/* A rule applying to BODY is really meant to address HTML */
elType = TtaGetElementType (el);
/* store the current line for eventually reported errors */
LineNumber = TtaGetElementLineNumber (el);
if (destroy)
/* no reported errors */
ParsedDoc = 0;
else if (ParsedDoc != doc)
{
/* update the context for reported errors */
ParsedDoc = doc;
DocURL = DocumentURLs[doc];
}
isHTML = (strcmp (TtaGetSSchemaName (elType.ElSSchema), "HTML") == 0);
/* create the context of the Specific presentation driver */
ctxt = TtaGetSpecificStyleContext (doc);
if (ctxt == NULL)
return;
ctxt->type = elType.ElTypeNum;
ctxt->cssSpecificity = specificity;
ctxt->cssLine = LineNumber;
ctxt->destroy = destroy;
/* first use of the context */
ctxt->uses = 1;
/* save the current display mode */
dispMode = TtaGetDisplayMode (doc);
/* Call the parser */
ParseCSSRule (el, NULL, (PresentationContext) ctxt, cssRule, NULL, isHTML);
/* restore the display mode if necessary */
TtaSetDisplayMode (doc, dispMode);
/* check if the context can be freed */
ctxt->uses -= 1;
if (ctxt->uses == 0)
/* no image loading */
TtaFreeMemory(ctxt);
}
/*----------------------------------------------------------------------
ParseGenericSelector: Create a generic context for a given selector
string.
If the selector is made of multiple comma, it parses them one at a time
and return the end of the selector string to be handled or NULL.
The parameter ctxt gives the current style context which will be passed
to Thotlib.
The parameter css points to the current CSS context.
The parameter link points to the link element.
The parameter url gives the URL of the parsed style sheet.
----------------------------------------------------------------------*/
static char *ParseGenericSelector (char *selector, char *cssRule,
GenericContext ctxt, Document doc,
CSSInfoPtr css, Element link, char *url)
{
ElementType elType;
PSchema tsch;
AttributeType attrType;
char *deb, *cur, *sel, *next, c;
char *schemaName, *mappedName;
char *names[MAX_ANCESTORS];
char *ids[MAX_ANCESTORS];
char *classes[MAX_ANCESTORS];
char *pseudoclasses[MAX_ANCESTORS];
char *attrs[MAX_ANCESTORS];
char *attrvals[MAX_ANCESTORS];
AttrMatch attrmatch[MAX_ANCESTORS];
ElemRel rel[MAX_ANCESTORS];
int i, j, k, max;
int att, kind;
int specificity, xmlType;
int skippedNL;
ThotBool isHTML;
ThotBool level, quoted;
sel = ctxt->sel;
sel[0] = EOS;
specificity = 0;
for (i = 0; i < MAX_ANCESTORS; i++)
{
names[i] = NULL;
ids[i] = NULL;
classes[i] = NULL;
pseudoclasses[i] = NULL;
attrs[i] = NULL;
attrvals[i] = NULL;
attrmatch[i] = Txtmatch;
rel[i] = RelAncestor;
ctxt->name[i] = 0;
ctxt->names_nb[i] = 0;
ctxt->attrType[i] = 0;
ctxt->attrLevel[i] = 0;
ctxt->attrText[i] = NULL;
ctxt->attrMatch[i] = Txtmatch;
}
ctxt->box = 0;
ctxt->type = 0;
/* the specificity of the rule depends on the selector */
ctxt->cssSpecificity = 0;
/* localisation of the CSS rule */
ctxt->cssLine = LineNumber + NewLineSkipped;
ctxt->cssURL = url;
selector = SkipBlanksAndComments (selector);
cur = &sel[0];
max = 0; /* number of loops */
while (1)
{
/* point to the following word in sel[] */
deb = cur;
/* copy an item of the selector into sel[] */
/* put one word in the sel buffer */
while (*selector != EOS && *selector != ',' &&
*selector != '.' && *selector != ':' &&
*selector != '#' && *selector != '[' &&
*selector != '>' && *selector != '+' &&
!TtaIsBlank (selector))
*cur++ = *selector++;
*cur++ = EOS; /* close the first string in sel[] */
if (deb[0] != EOS)
{
if (deb[0] <= 64 && deb[0] != '*')
{
CSSPrintError ("Invalid element", deb);
return NULL;
}
else
{
names[0] = deb;
if (!strcmp (names[0], "html"))
/* give a greater priority to the backgoud color of html */
specificity += 3;
else
/* selector "*" has specificity zero */
if (strcmp (names[0], "*"))
specificity += 1;
}
}
else
names[0] = NULL;
classes[0] = NULL;
pseudoclasses[0] = NULL;
ids[0] = NULL;
attrs[0] = NULL;
attrvals[0] = NULL;
/* now names[0] points to the beginning of the parsed item
and cur to the next chain to be parsed */
while (*selector == '.' || *selector == ':' ||
*selector == '#' || *selector == '[')
{
/* point to the following word in sel[] */
deb = cur;
if (*selector == '.')
{
selector++;
while (*selector != EOS && *selector != ',' &&
*selector != '.' && *selector != ':' &&
!TtaIsBlank (selector))
{
if (*selector == '\\')
{
selector++;
if (*selector != EOS)
*cur++ = *selector++;
}
else
*cur++ = *selector++;
}
/* close the word */
*cur++ = EOS;
/* point to the class in sel[] if it's valid name */
if (deb[0] <= 64)
{
CSSPrintError ("Invalid class", deb);
DoApply = FALSE;
}
else
{
classes[0] = deb;
/* a "class" attribute on an element may contain several
words, one for each class it matches */
attrmatch[0] = Txtword;
specificity += 10;
if (names[0] && !strcmp (names[0], "*"))
names[0] = NULL;
}
}
else if (*selector == ':')
{
selector++;
while (*selector != EOS && *selector != ',' &&
*selector != '.' && *selector != ':' &&
!TtaIsBlank (selector))
*cur++ = *selector++;
/* close the word */
*cur++ = EOS;
/* point to the pseudoclass in sel[] if it's valid name */
if (deb[0] <= 64)
{
CSSPrintError ("Invalid pseudoclass", deb);
DoApply = FALSE;
}
else
{
if (!strcmp (deb, "first-letter") ||
!strcmp (deb, "first-line") ||
!strcmp (deb, "before") ||
!strcmp (deb, "after"))
/* not supported */
DoApply = FALSE;
else
specificity += 10;
if (!strncmp (deb, "lang", 4))
/* it's the lang pseudo-class */
{
if (deb[4] != '(' || deb[strlen(deb)-1] != ')')
/* at least one paranthesis is missing. Error */
{
CSSPrintError ("Invalid :lang pseudoclass", deb);
DoApply = FALSE;
}
else
/* simulate selector [lang|="xxx"] if there no
attribute yet in the selector */
if (!attrs[0])
{
deb[strlen(deb)-1] = EOS;
deb[4] = EOS;
attrmatch[0] = Txtsubstring;
attrs[0] = deb;
attrvals[0] = &deb[5];
}
}
else
{
pseudoclasses[0] = deb;
/* a "pseudo-class" attribute must match */
attrmatch[0] = Txtmatch;
}
if (names[0] && !strcmp (names[0], "*"))
names[0] = NULL;
}
}
else if (*selector == '#')
{
selector++;
while (*selector != EOS && *selector != ',' &&
*selector != '.' && *selector != ':' &&
*selector != '#' &&
!TtaIsBlank (selector))
*cur++ = *selector++;
/* close the word */
*cur++ = EOS;
/* point to the attribute in sel[] if it's valid name */
if (deb[0] <= 64)
{
CSSPrintError ("Invalid id", deb);
DoApply = FALSE;
}
else
{
if (ids[0] && strcmp(ids[0], deb))
{
CSSPrintError ("Too many ids", deb);
DoApply = FALSE;
}
else
{
ids[0] = deb;
specificity += 100;
if (names[0] && !strcmp (names[0], "*"))
names[0] = NULL;
/* a "id" attribute must match */
attrmatch[0] = Txtmatch;
}
}
}
else if (*selector == '[')
{
selector++;
while (*selector != EOS && *selector != ']' &&
*selector != '=' && *selector != '~' &&
*selector != '|' && *selector != '^' &&
*selector != '!')
*cur++ = *selector++;
/* check matching */
if (*selector == '~')
{
attrmatch[0] = Txtword;
selector++;
}
else if (*selector == '|')
{
attrmatch[0] = Txtsubstring;
selector++;
}
else
attrmatch[0] = Txtmatch;
/* close the word */
*cur++ = EOS;
/* point to the attribute in sel[] if it's valid name */
if (deb[0] <= 64)
{
CSSPrintError ("Invalid attribute", deb);
DoApply = FALSE;
}
else
{
attrs[0] = deb;
specificity += 10;
}
if (*selector == '=')
{
/* look for a value "xxxx" */
selector++;
if (*selector != '"')
quoted = FALSE;
else
{
quoted = TRUE;
/* we are now parsing the attribute value */
selector++;
}
deb = cur;
while ((quoted &&
(*selector != '"' ||
(*selector == '"' && selector[-1] == '\\'))) ||
(!quoted && *selector != ']'))
{
if (*selector == EOS)
{
CSSPrintError ("Invalid attribute value", deb);
DoApply = FALSE;
}
else
{
if (attrmatch[0] == Txtword && TtaIsBlank (selector))
{
CSSPrintError ("No space allowed here: ", selector);
DoApply = FALSE;
}
*cur++ = *selector;
}
selector++;
}
/* there is a value */
if (quoted && *selector == '"')
{
selector++;
quoted = FALSE;
}
if (*selector != ']')
{
CSSPrintError ("Invalid attribute value", deb);
DoApply = FALSE;
}
else
{
*cur++ = EOS;
attrvals[0] = deb;
selector++;
}
}
/* end of the attribute */
else if (*selector != ']')
{
selector[1] = EOS;
CSSPrintError ("Invalid attribute", selector);
selector += 2;
DoApply = FALSE;
}
else
{
selector++;
if (names[0] && !strcmp (names[0], "*"))
names[0] = NULL;
}
}
else
{
/* not supported selector */
while (*selector != EOS && *selector != ',' &&
*selector != '.' && *selector != ':' &&
!TtaIsBlank (selector))
*cur++ = *selector++;
/* close the word */
*cur++ = EOS;
CSSPrintError ("Selector not supported:", deb);
DoApply = FALSE;
}
}
selector = SkipBlanksAndComments (selector);
/* is it a multi-level selector? */
if (*selector == EOS)
/* end of the selector */
break;
else if (*selector == ',')
{
/* end of the current selector */
selector++;
next = SkipBlanksAndComments (selector);
if (*next == EOS)
/* nothing after the comma. Invalid selector */
{
CSSPrintError ("Syntax error:", selector);
return NULL;
}
break;
}
else
{
if (*selector == '>')
{
/* handle immediat parent as a simple parent */
selector++;
selector = SkipBlanksAndComments (selector);
rel[0] = RelImmediat;
}
else if (*selector == '+')
{
/* handle immediat parent as a simple parent */
selector++;
selector = SkipBlanksAndComments (selector);
rel[0] = RelPrevious;
}
/* shifts the list to make room for the new name */
max++; /* a new level in ancestor tables */
if (max == MAX_ANCESTORS)
/* abort the CSS parsing */
return (selector);
for (i = max; i > 0; i--)
{
names[i] = names[i - 1];
ids[i] = ids[i - 1];
classes[i] = classes[i - 1];
pseudoclasses[i] = pseudoclasses[i - 1];
attrs[i] = attrs[i - 1];
attrvals[i] = attrvals[i - 1];
attrmatch[i] = attrmatch[i - 1];
rel[i] = rel[i - 1];
}
}
}
/* Now set up the context block */
i = 0;
k = 0;
j = 0;
/* default schema name */
ctxt->schema = NULL;
elType.ElSSchema = NULL;
schemaName = TtaGetSSchemaName(TtaGetDocumentSSchema (doc));
if (!strcmp (schemaName, "HTML"))
xmlType = XHTML_TYPE;
else if (!strcmp (schemaName, "MathML"))
xmlType = MATH_TYPE;
else if (!strcmp (schemaName, "SVG"))
xmlType = SVG_TYPE;
else if (!strcmp (schemaName, "XLink"))
xmlType = XLINK_TYPE;
else if (!strcmp (schemaName, "Annot"))
xmlType = ANNOT_TYPE;
else
xmlType = XML_TYPE;
while (i <= max && j < MAX_ANCESTORS)
{
if (names[i])
{
/* get the element type of this name in the current document */
if (xmlType == XML_TYPE)
/* it's a generic XML document. Check the main document schema */
{
elType.ElSSchema = TtaGetDocumentSSchema (doc);
TtaGetXmlElementType (names[i], &elType, &mappedName, doc);
if (!elType.ElTypeNum)
{
if (!strcmp (names[i], "*"))
elType.ElTypeNum = HTML_EL_ANY_TYPE;
else
elType.ElSSchema = NULL;
}
}
else
{
if (!strcmp (names[i], "*"))
{
elType.ElSSchema = TtaGetDocumentSSchema (doc);
elType.ElTypeNum = HTML_EL_ANY_TYPE;
}
else
MapXMLElementType (xmlType, names[i], &elType, &mappedName, &c,
&level, doc);
}
if (i == 0)
{
if (elType.ElSSchema == NULL)
{
/* Search in the list of loaded schemas */
TtaGetXmlElementType (names[i], &elType, NULL, doc);
if (elType.ElSSchema)
{
/* the element type concerns an imported nature */
schemaName = TtaGetSSchemaName(elType.ElSSchema);
if (!strcmp (schemaName, "HTML"))
xmlType = XHTML_TYPE;
else if (!strcmp (schemaName, "MathML"))
xmlType = MATH_TYPE;
else if (!strcmp (schemaName, "SVG"))
xmlType = SVG_TYPE;
else if (!strcmp (schemaName, "XLink"))
xmlType = XLINK_TYPE;
else if (!strcmp (schemaName, "Annot"))
xmlType = ANNOT_TYPE;
else
xmlType = XML_TYPE;
}
#ifdef XML_GENERIC
else if (xmlType == XML_TYPE)
{
/* Creation of a new element type in the main schema */
elType.ElSSchema = TtaGetDocumentSSchema (doc);
TtaAppendXmlElement (names[i], &elType, &mappedName, doc);
}
#endif /* XML_GENERIC */
else
{
if (xmlType != XHTML_TYPE)
{
MapXMLElementType (XHTML_TYPE, names[i], &elType,
&mappedName, &c, &level, doc);
if (elType.ElSSchema)
elType.ElSSchema = GetXHTMLSSchema (doc);
}
if (elType.ElSSchema == NULL && xmlType != MATH_TYPE)
{
MapXMLElementType (MATH_TYPE, names[i], &elType,
&mappedName, &c, &level, doc);
if (elType.ElSSchema)
elType.ElSSchema = GetMathMLSSchema (doc);
}
if (elType.ElSSchema == NULL && xmlType != SVG_TYPE)
{
MapXMLElementType (SVG_TYPE, names[i], &elType,
&mappedName, &c, &level, doc);
if (elType.ElSSchema)
elType.ElSSchema = GetSVGSSchema (doc);
}
}
}
if (elType.ElSSchema == NULL)
/* cannot apply these CSS rules */
DoApply = FALSE;
else
{
/* Store the element type */
ctxt->type = elType.ElTypeNum;
ctxt->name[0] = elType.ElTypeNum;
ctxt->names_nb[0] = 0;
ctxt->rel[0] = RelAncestor;
ctxt->schema = elType.ElSSchema;
}
}
else if (elType.ElTypeNum != 0)
{
/* look at the current context to see if the type is already
stored */
j = 1;
while (j < k &&
(ctxt->name[j] != elType.ElTypeNum ||
ctxt->rel[j] != RelAncestor))
j++;
if (j == k)
{
ctxt->name[j] = elType.ElTypeNum;
if (j != 0)
{
ctxt->names_nb[j] = 1;
ctxt->rel[j] = rel[i];
}
}
else
/* increment the number of ancestor levels */
ctxt->names_nb[j]++;
}
#ifdef XML_GENERIC
else if (xmlType == XML_TYPE)
{
TtaGetXmlElementType (names[i], &elType, NULL, doc);
if (elType.ElTypeNum == 0)
{
/* Creation of a new element type in the main schema */
elType.ElSSchema = TtaGetDocumentSSchema (doc);
TtaAppendXmlElement (names[i], &elType, &mappedName, doc);
}
if (elType.ElTypeNum != 0)
{
/* look at the current context to see if the type is already
stored */
j = 1;
while (j < k &&
(ctxt->name[j] != elType.ElTypeNum ||
ctxt->rel[j] != RelAncestor))
j++;
if (j == k)
{
ctxt->name[j] = elType.ElTypeNum;
if (j != 0)
{
ctxt->names_nb[j] = 1;
ctxt->rel[j] = rel[i];
}
else
ctxt->rel[j] = RelAncestor;
}
else
/* increment the number of ancestor levels */
ctxt->names_nb[j]++;
}
}
#endif /* XML_GENERIC */
else
j = k;
}
else
j = k;
/* store attributes information */
if (classes[i])
{
ctxt->attrText[j] = classes[i];
if (xmlType == SVG_TYPE)
ctxt->attrType[j] = SVG_ATTR_class;
else if (xmlType == MATH_TYPE)
ctxt->attrType[j] = MathML_ATTR_class;
else if (xmlType == XHTML_TYPE)
ctxt->attrType[j] = HTML_ATTR_Class;
else
#ifdef XML_GENERIC
ctxt->attrType[j] = XML_ATTR_class;
#else /* XML_GENERIC */
ctxt->attrType[j] = HTML_ATTR_Class;
#endif /* XML_GENERIC */
ctxt->attrMatch[j] = attrmatch[i];
/* add a new entry */
/* update attrLevel */
ctxt->attrLevel[j] = i;
j++;
}
if (pseudoclasses[i])
{
ctxt->attrText[j] = pseudoclasses[i];
if (xmlType == SVG_TYPE)
ctxt->attrType[j] = SVG_ATTR_PseudoClass;
else if (xmlType == MATH_TYPE)
ctxt->attrType[j] = MathML_ATTR_PseudoClass;
else if (xmlType == XHTML_TYPE)
ctxt->attrType[j] = HTML_ATTR_PseudoClass;
else
#ifdef XML_GENERIC
ctxt->attrType[j] = XML_ATTR_PseudoClass;
#else /* XML_GENERIC */
ctxt->attrType[j] = HTML_ATTR_PseudoClass;
#endif /* XML_GENERIC */
ctxt->attrMatch[j] = attrmatch[i];
/* add a new entry */
/* update attrLevel */
ctxt->attrLevel[j] = i;
j++;
}
if (ids[i])
{
ctxt->attrText[j] = ids[i];
if (xmlType == SVG_TYPE)
ctxt->attrType[j] = SVG_ATTR_id;
else if (xmlType == MATH_TYPE)
ctxt->attrType[j] = MathML_ATTR_id;
else if (xmlType == XHTML_TYPE)
ctxt->attrType[j] = HTML_ATTR_ID;
else
#ifdef XML_GENERIC
ctxt->attrType[j] = XML_ATTR_id;
#else /* XML_GENERIC */
ctxt->attrType[j] = HTML_ATTR_ID;
#endif /* XML_GENERIC */
ctxt->attrMatch[j] = attrmatch[i];
/* add a new entry */
/* update attrLevel */
ctxt->attrLevel[j] = i;
j++;
}
if (attrs[i])
{
/* it's an attribute */
if (xmlType == XML_TYPE)
{
attrType.AttrSSchema = TtaGetDocumentSSchema (doc);
TtaGetXmlAttributeType (attrs[i], &attrType, doc);
att = attrType.AttrTypeNum;
}
else
{
MapXMLAttribute (xmlType, attrs[i], names[i], &level, doc, &att);
if (ctxt->schema == NULL && att != 0)
ctxt->schema = TtaGetDocumentSSchema (doc);
}
if (att == DummyAttribute && !strcmp (schemaName, "HTML"))
/* it's the "type" attribute for an "input" element. In the tree
it's represented by the element type, not by an attribute */
att = 0;
ctxt->attrType[j] = att;
ctxt->attrMatch[j] = attrmatch[i];
attrType.AttrSSchema = ctxt->schema;
attrType.AttrTypeNum = att;
if (i == 0 && att == 0 && ctxt->schema == NULL)
{
/* Not found -> search in the list of loaded schemas */
attrType.AttrSSchema = NULL;
TtaGetXmlAttributeType (attrs[i], &attrType, doc);
ctxt->attrType[j] = attrType.AttrTypeNum;
if (attrType.AttrSSchema)
/* the element type concerns an imported nature */
schemaName = TtaGetSSchemaName(attrType.AttrSSchema);
#ifdef XML_GENERIC
else if (xmlType == XML_TYPE)
{
/* The attribute is not yet present in the tree */
/* Create a new global attribute */
attrType.AttrSSchema = TtaGetDocumentSSchema (doc);
TtaAppendXmlAttribute (attrs[i], &attrType, doc);
}
#endif /* XML_GENERIC */
if (attrType.AttrSSchema == NULL)
/* cannot apply these CSS rules */
DoApply = FALSE;
else if (elType.ElSSchema)
ctxt->schema = elType.ElSSchema;
else
ctxt->schema = attrType.AttrSSchema;
}
/* check the attribute type */
if (!strcmp (schemaName, "HTML"))
xmlType = XHTML_TYPE;
else if (!strcmp (schemaName, "MathML"))
xmlType = MATH_TYPE;
else if (!strcmp (schemaName, "SVG"))
xmlType = SVG_TYPE;
else if (!strcmp (schemaName, "XLink"))
xmlType = XLINK_TYPE;
else if (!strcmp (schemaName, "Annot"))
xmlType = ANNOT_TYPE;
else
xmlType = XML_TYPE;
kind = TtaGetAttributeKind (attrType);
if (kind == 0 && attrvals[i])
{
/* enumerated value */
MapXMLAttributeValue (xmlType, attrvals[i], &attrType, &kind);
/* store the attribute value */
ctxt->attrText[j] = (char *) kind;
}
else
ctxt->attrText[j] = attrvals[i];
/* update attrLevel */
ctxt->attrLevel[j] = i;
j++;
}
i++;
/* add a new entry */
k++;
if (k < j)
k = j;
if (i == 1 && ctxt->schema == NULL)
/* use the document schema */
ctxt->schema = TtaGetDocumentSSchema (doc);
}
/* set the selector specificity */
ctxt->cssSpecificity = specificity;
/* Get the schema name of the main element */
schemaName = TtaGetSSchemaName (ctxt->schema);
isHTML = (strcmp (schemaName, "HTML") == 0);
tsch = GetPExtension (doc, ctxt->schema, css, link);
skippedNL = NewLineSkipped;
if (tsch && cssRule)
ParseCSSRule (NULL, tsch, (PresentationContext) ctxt, cssRule, css, isHTML);
/* future CSS rules should apply */
DoApply = TRUE;
if (selector)
NewLineSkipped = skippedNL;
return (selector);
}
/*----------------------------------------------------------------------
ParseStyleDeclaration: parse a style declaration stored in the style
element of a document
We expect the style string to be of the form:
.pinky, .awful { color: pink; font-family: helvetica }
The parameter css points to the current CSS context.
The parameter link points to the link element.
The parameter url gives the URL of the parsed style sheet.
----------------------------------------------------------------------*/
static void ParseStyleDeclaration (Element el, char *cssRule, Document doc,
CSSInfoPtr css, Element link, char *url,
ThotBool destroy)
{
GenericContext ctxt;
char *decl_end;
char *sel_end;
char *selector;
/* separate the selectors string */
cssRule = SkipBlanksAndComments (cssRule);
decl_end = cssRule;
while (*decl_end != EOS && *decl_end != '{')
decl_end++;
if (*decl_end == EOS)
{
CSSPrintError ("Invalid selector", cssRule);
return;
}
/* verify and clean the selector string */
sel_end = decl_end - 1;
while (*sel_end == SPACE || *sel_end == BSPACE ||
*sel_end == EOL || *sel_end == CR)
sel_end--;
sel_end++;
*sel_end = EOS;
selector = cssRule;
/* now, deal with the content ... */
decl_end++;
cssRule = decl_end;
decl_end = &cssRule[strlen (cssRule) - 1];
if (*decl_end != '{')
*decl_end = EOS;
/*
* parse the style attribute string and install the corresponding
* presentation attributes on the new element
*/
ctxt = TtaGetGenericStyleContext (doc);
if (ctxt == NULL)
return;
ctxt->destroy = destroy;
/* first use of the context */
ctxt->uses = 1;
while (selector && *selector != EOS)
selector = ParseGenericSelector (selector, cssRule, ctxt, doc, css,
link, url);
/* check if the context can be freed */
ctxt->uses -= 1;
if (ctxt->uses == 0)
/* no image loading */
TtaFreeMemory (ctxt);
}
/************************************************************************
* *
* EVALUATION FUNCTIONS / CASCADING AND OVERLOADING *
* *
************************************************************************/
/*----------------------------------------------------------------------
IsImplicitClassName: return wether the Class name is an
implicit one, eg "H1" or "H2 EM" meaning it's a GI name
or an HTML context name.
----------------------------------------------------------------------*/
int IsImplicitClassName (char *class_, Document doc)
{
char name[200];
char *cur = name;
char *first;
char save;
SSchema schema;
/* make a local copy */
strncpy (name, class_, 199);
name[199] = 0;
/* loop looking if each word is a GI */
while (*cur != 0)
{
first = cur;
cur = SkipWord (cur);
save = *cur;
*cur = 0;
schema = NULL;
if (MapGI (first, &schema, doc) == -1)
{
return (0);
}
*cur = save;
cur = SkipBlanksAndComments (cur);
}
return (1);
}
/************************************************************************
* *
* Functions needed for support of HTML: translate to CSS equivalent *
* *
************************************************************************/
/*----------------------------------------------------------------------
HTMLSetBackgroundColor:
----------------------------------------------------------------------*/
void HTMLSetBackgroundColor (Document doc, Element el, int specificity,
char *color)
{
char css_command[100];
sprintf (css_command, "background-color: %s", color);
ParseHTMLSpecificStyle (el, css_command, doc, specificity, FALSE);
}
/*----------------------------------------------------------------------
HTMLSetForegroundColor:
----------------------------------------------------------------------*/
void HTMLSetForegroundColor (Document doc, Element el, int specificity,
char *color)
{
char css_command[100];
sprintf (css_command, "color: %s", color);
ParseHTMLSpecificStyle (el, css_command, doc, specificity, FALSE);
}
/*----------------------------------------------------------------------
HTMLResetBackgroundColor:
----------------------------------------------------------------------*/
void HTMLResetBackgroundColor (Document doc, Element el)
{
char css_command[100];
sprintf (css_command, "background: red");
ParseHTMLSpecificStyle (el, css_command, doc, 0, TRUE);
}
/*----------------------------------------------------------------------
HTMLResetBackgroundImage:
----------------------------------------------------------------------*/
void HTMLResetBackgroundImage (Document doc, Element el)
{
char css_command[1000];
sprintf (css_command, "background-image: url(xx); background-repeat: repeat");
ParseHTMLSpecificStyle (el, css_command, doc, 0, TRUE);
}
/*----------------------------------------------------------------------
HTMLResetForegroundColor:
----------------------------------------------------------------------*/
void HTMLResetForegroundColor (Document doc, Element el)
{
char css_command[100];
/* it's not necessary to well know the current color but it must be valid */
sprintf (css_command, "color: red");
ParseHTMLSpecificStyle (el, css_command, doc, 0, TRUE);
}
/*----------------------------------------------------------------------
HTMLSetAlinkColor:
----------------------------------------------------------------------*/
void HTMLSetAlinkColor (Document doc, Element el, char *color)
{
char css_command[100];
sprintf (css_command, ":link { color: %s }", color);
ApplyCSSRules (el, css_command, doc, FALSE);
}
/*----------------------------------------------------------------------
HTMLSetAactiveColor:
----------------------------------------------------------------------*/
void HTMLSetAactiveColor (Document doc, Element el, char *color)
{
char css_command[100];
sprintf (css_command, ":active { color: %s }", color);
ApplyCSSRules (el, css_command, doc, FALSE);
}
/*----------------------------------------------------------------------
HTMLSetAvisitedColor:
----------------------------------------------------------------------*/
void HTMLSetAvisitedColor (Document doc, Element el, char *color)
{
char css_command[100];
sprintf (css_command, ":visited { color: %s }", color);
ApplyCSSRules (el, css_command, doc, FALSE);
}
/*----------------------------------------------------------------------
HTMLResetAlinkColor:
----------------------------------------------------------------------*/
void HTMLResetAlinkColor (Document doc, Element el)
{
char css_command[100];
sprintf (css_command, ":link { color: red }");
ApplyCSSRules (el, css_command, doc, TRUE);
}
/*----------------------------------------------------------------------
HTMLResetAactiveColor:
----------------------------------------------------------------------*/
void HTMLResetAactiveColor (Document doc, Element el)
{
char css_command[100];
sprintf (css_command, ":active { color: red }");
ApplyCSSRules (el, css_command, doc, TRUE);
}
/*----------------------------------------------------------------------
HTMLResetAvisitedColor:
----------------------------------------------------------------------*/
void HTMLResetAvisitedColor (Document doc, Element el)
{
char css_command[100];
sprintf (css_command, ":visited { color: red }");
ApplyCSSRules (el, css_command, doc, TRUE);
}
/*----------------------------------------------------------------------
ApplyCSSRules: parse a CSS Style description stored in the header of
a HTML document.
----------------------------------------------------------------------*/
void ApplyCSSRules (Element el, char *cssRule, Document doc, ThotBool destroy)
{
CSSInfoPtr css;
PInfoPtr pInfo;
ThotBool loadcss;
/* check if we have to load CSS */
TtaGetEnvBoolean ("LOAD_CSS", &loadcss);
if (!loadcss)
return;
css = SearchCSS (doc, NULL, el, &pInfo);
if (css == NULL)
{
/* create the document css context */
css = AddCSS (doc, doc, CSS_DOCUMENT_STYLE, CSS_ALL, NULL, NULL, el);
pInfo = css->infos[doc];
}
else if (pInfo == NULL)
/* create the entry into the css context */
pInfo = AddInfoCSS (doc, css, CSS_DOCUMENT_STYLE, CSS_ALL, el);
if (pInfo->PiEnabled)
ParseStyleDeclaration (el, cssRule, doc, css, el, NULL, destroy);
}
/*----------------------------------------------------------------------
ReadCSSRules: is the front-end function called by the document parser
when detecting a <style type="text/css"> indicating it's the
beginning of a CSS fragment or when reading a file .css.
The CSS parser has to handle <!-- ... --> constructs used to
prevent prehistoric browser from displaying the CSS as a text
content. It will stop on any sequence "<x" where x is different
from ! and will return x as to the caller. Theorically x should
be equal to / for the </style> end of style.
The parameter doc gives the document tree that contains CSS information.
The parameter docRef gives the document to which CSS are to be applied.
This function uses the current css context or creates it. It's able
to work on the given buffer or call GetNextChar to read the parsed
file.
The parameter url gives the URL of the parsed style sheet.
The parameter numberOfLinesRead gives the number of lines already
read in the file.
The parameter withUndo indicates whether the changes made in the document
structure and content have to be registered in the Undo queue or not.
----------------------------------------------------------------------*/
char ReadCSSRules (Document docRef, CSSInfoPtr css, char *buffer, char *url,
int numberOfLinesRead, ThotBool withUndo,
Element link)
{
DisplayMode dispMode;
CSSInfoPtr refcss = NULL;
PInfoPtr pInfo;
char c;
char *cssRule, *base, *saveDocURL, *ptr;
int index;
int CSSindex;
int CSScomment;
int import;
int openRule;
int newlines;
ThotBool HTMLcomment;
ThotBool toParse, eof, quoted;
ThotBool ignore, media, page;
ThotBool noRule, ignoreImport, fontface;
CSScomment = MAX_CSS_LENGTH;
HTMLcomment = FALSE;
CSSindex = 0;
toParse = FALSE;
noRule = FALSE;
media = FALSE;
ignoreImport = FALSE;
ignore = FALSE;
page = FALSE;
quoted = FALSE;
fontface = FALSE;
eof = FALSE;
openRule = 0;
import = MAX_CSS_LENGTH;
c = SPACE;
index = 0;
base = NULL;
/* number of new lines parsed */
newlines = 0;
/* avoid too many redisplay */
dispMode = TtaGetDisplayMode (docRef);
if (dispMode == DisplayImmediately)
TtaSetDisplayMode (docRef, DeferredDisplay);
/* look for the CSS context */
if (css == NULL)
css = SearchCSS (docRef, NULL, link, &pInfo);
else
pInfo = css->infos[docRef];
if (css == NULL)
{
css = AddCSS (docRef, docRef, CSS_DOCUMENT_STYLE, CSS_ALL, NULL, NULL, link);
pInfo = css->infos[docRef];
}
else if (pInfo == NULL)
pInfo = AddInfoCSS (docRef, css, CSS_DOCUMENT_STYLE, CSS_ALL, link);
/* look for the CSS descriptor that points to the extension schema */
refcss = css;
if (pInfo && pInfo->PiCategory == CSS_IMPORT)
{
while (refcss &&
refcss->infos[docRef] && refcss->infos[docRef]->PiCategory == CSS_IMPORT)
refcss = refcss->NextCSS;
if (refcss)
pInfo = refcss->infos[docRef];
}
/* register parsed CSS file and the document to which CSS are to be applied*/
ParsedDoc = docRef;
if (url)
DocURL = url;
else
/* the CSS source in within the document itself */
DocURL = DocumentURLs[docRef];
LineNumber = numberOfLinesRead + 1;
NewLineSkipped = 0;
newlines = 0;
while (CSSindex < MAX_CSS_LENGTH && c != EOS && !eof)
{
c = buffer[index++];
eof = (c == EOS);
CSSbuffer[CSSindex] = c;
if (CSScomment == MAX_CSS_LENGTH ||
c == '*' || c == '/' || c == '<' || c == EOL)
{
/* we're not within a comment or we're parsing * or / */
switch (c)
{
case '@': /* perhaps an import primitive */
if (!fontface && !page && !quoted)
import = CSSindex;
break;
case ';':
if (!quoted && !media && import != MAX_CSS_LENGTH)
{
if (strncasecmp (&CSSbuffer[import+1], "import", 6))
/* it's not an import */
import = MAX_CSS_LENGTH;
/* save the text */
noRule = TRUE;
}
break;
case '*':
if (!quoted && CSScomment == MAX_CSS_LENGTH && CSSindex > 0 &&
CSSbuffer[CSSindex - 1] == '/')
/* start a comment */
CSScomment = CSSindex - 1;
break;
case '/':
if (!quoted && CSSindex > 1 && CSScomment != MAX_CSS_LENGTH &&
CSSbuffer[CSSindex - 1] == '*')
{
/* close a comment and ignore its contents */
CSSindex = CSScomment - 1; /* will be incremented later */
CSScomment = MAX_CSS_LENGTH;
/* clean up the buffer */
if (newlines && CSSindex > 0)
while (CSSindex > 0 &&
(CSSbuffer[CSSindex] == SPACE ||
CSSbuffer[CSSindex] == BSPACE ||
CSSbuffer[CSSindex] == EOL ||
CSSbuffer[CSSindex] == TAB ||
CSSbuffer[CSSindex] == __CR__))
{
if ( CSSbuffer[CSSindex] == EOL)
{
LineNumber ++;
newlines --;
}
CSSindex--;
}
}
else if (!fontface && !page && !quoted &&
CSScomment == MAX_CSS_LENGTH && CSSindex > 0 &&
CSSbuffer[CSSindex - 1] == '<')
{
/* this is the closing tag ! */
CSSindex -= 2; /* remove </ from the CSS string */
noRule = TRUE;
}
break;
case '<':
if (!fontface && !page && !quoted &&
CSScomment == MAX_CSS_LENGTH)
{
/* only if we're not parsing a comment */
c = buffer[index++];
eof = (c == EOS);
if (c == '!')
{
/* CSS within an HTML comment */
HTMLcomment = TRUE;
CSSindex++;
CSSbuffer[CSSindex] = c;
}
else if (c == EOS)
CSSindex++;
}
break;
case '-':
if (!fontface && !page && !quoted &&
CSSindex > 0 && CSSbuffer[CSSindex - 1] == '-' &&
HTMLcomment)
/* CSS within an HTML comment */
noRule = TRUE;
break;
case '>':
if (!fontface && !page && !quoted && HTMLcomment)
noRule = TRUE;
break;
case ' ':
if (!quoted && import != MAX_CSS_LENGTH && openRule == 0)
media = !strncasecmp (&CSSbuffer[import+1], "media", 5);
break;
case '{':
if (!quoted)
{
openRule++;
if (import != MAX_CSS_LENGTH)
{
if (openRule == 1 && media)
{
/* is it the screen concerned? */
CSSbuffer[CSSindex+1] = EOS;
if (TtaIsPrinting ())
base = strstr (&CSSbuffer[import], "print");
else
base = strstr (&CSSbuffer[import], "screen");
if (base == NULL)
base = strstr (&CSSbuffer[import], "all");
if (base == NULL)
ignore = TRUE;
noRule = TRUE;
}
else if (!strncasecmp (&CSSbuffer[import+1], "page", 4))
{
page = TRUE;
noRule = TRUE;
}
else if (!strncasecmp (&CSSbuffer[import+1], "font-face", 9))
{
fontface = TRUE;
noRule = TRUE;
}
}
}
break;
case '}':
if (!quoted)
{
openRule--;
if (page)
{
noRule = TRUE;
page = FALSE; /* close the page section */
}
else if (fontface)
{
noRule = TRUE;
fontface = FALSE; /* close the fontface section */
}
else if (openRule == 0 && import != MAX_CSS_LENGTH)
{
import = MAX_CSS_LENGTH;
noRule = TRUE;
ignore = FALSE;
media = FALSE;
}
else
toParse = TRUE;
}
break;
case '"':
if (quoted)
{
if (CSSbuffer[CSSindex - 1] != '\\')
quoted = FALSE;
}
else
quoted = TRUE;
break;
default:
if (c == EOL)
newlines++;
break;
}
}
else if (c == EOL)
{
LineNumber++;
c = CR;
}
if (c != CR)
CSSindex++;
if (CSSindex >= MAX_CSS_LENGTH && CSScomment < MAX_CSS_LENGTH)
/* we're still parsing a comment: remove the text comment */
CSSindex = CSScomment;
if (CSSindex >= MAX_CSS_LENGTH || toParse || noRule)
{
CSSbuffer[CSSindex] = EOS;
/* parse a not empty string */
if (CSSindex > 0)
{
/* apply CSS rule if it's not just a saving of text */
if (!noRule && !ignore)
{
/* future import rules must be ignored */
ignoreImport = TRUE;
NewLineSkipped = 0;
ParseStyleDeclaration (NULL, CSSbuffer, docRef, refcss,
pInfo->PiLink, url, FALSE);
LineNumber += newlines;
newlines = 0;
}
else if (import != MAX_CSS_LENGTH &&
!strncasecmp (&CSSbuffer[import+1], "import", 6))
{
/* import section */
cssRule = &CSSbuffer[import+7];
cssRule = TtaSkipBlanks (cssRule);
/* save the current line number */
newlines += LineNumber;
if (!strncasecmp (cssRule, "url", 3))
{
cssRule = &cssRule[3];
cssRule = TtaSkipBlanks (cssRule);
if (*cssRule == '(')
{
cssRule++;
cssRule = TtaSkipBlanks (cssRule);
quoted = (*cssRule == '"' || *cssRule == '\'');
if (quoted)
cssRule++;
base = cssRule;
while (*cssRule != EOS && *cssRule != ')')
cssRule++;
if (quoted)
{
/* isolate the file name */
cssRule[-1] = EOS;
quoted = FALSE;
}
else
{
/* remove extra spaces */
if (cssRule[-1] == SPACE)
{
*cssRule = SPACE;
cssRule--;
while (cssRule[-1] == SPACE)
cssRule--;
}
}
*cssRule = EOS;
}
}
else if (*cssRule == '"')
{
/*
Do we have to accept single quotes?
Double quotes are acceted here.
Escaped quotes are not handled. See function SkipQuotedString
*/
cssRule++;
cssRule = TtaSkipBlanks (cssRule);
base = cssRule;
while (*cssRule != EOS &&
(*cssRule != '"' ||
(*cssRule == '"' && cssRule[-1] == '\\')))
cssRule++;
/* isolate the file name */
*cssRule = EOS;
}
/* check if a media is defined */
cssRule++;
cssRule = TtaSkipBlanks (cssRule);
if (*cssRule != ';')
{
if (TtaIsPrinting ())
ignoreImport = (strncasecmp (cssRule, "print", 5) &&
strncasecmp (cssRule, "all", 3));
else
ignoreImport = (strncasecmp (cssRule, "screen", 6) &&
strncasecmp (cssRule, "all", 3));
}
if (!ignoreImport)
{
/* save the displayed URL when an error is reported */
saveDocURL = DocURL;
ptr = TtaStrdup (base);
/* get the CSS URI in UTF-8 */
ptr = ReallocUTF8String (ptr, docRef);
LoadStyleSheet (base, docRef, (Element) css, css,
pInfo->PiMedia,
pInfo->PiCategory == CSS_USER_STYLE);
/* restore the displayed URL when an error is reported */
DocURL = saveDocURL;
TtaFreeMemory (ptr);
}
/* restore the number of lines */
LineNumber = newlines;
newlines = 0;
NewLineSkipped = 0;
import = MAX_CSS_LENGTH;
}
else
{
LineNumber += newlines;
newlines = 0;
}
}
toParse = FALSE;
noRule = FALSE;
CSSindex = 0;
}
}
/* restore the display mode */
if (dispMode == DisplayImmediately)
TtaSetDisplayMode (docRef, dispMode);
/* Prepare the context for style attributes */
DocURL = DocumentURLs[docRef];
LineNumber = -1;
return (c);
}
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