/*
*
* (c) COPYRIGHT MIT and INRIA, 1996-2002
* Please first read the full copyright statement in file COPYRIGHT.
*
*/
/*
* Everything directly linked 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"
typedef struct _BackgroundImageCallbackBlock
{
Element el;
PSchema tsch;
union
{
PresentationContextBlock specific;
GenericContextBlock generic;
} context;
}
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;
struct unit_def
{
char *sign;
unsigned int unit;
};
static struct unit_def CSSUnitNames[] =
{
{"pt", STYLE_UNIT_PT},
{"pc", STYLE_UNIT_PC},
{"in", STYLE_UNIT_IN},
{"cm", STYLE_UNIT_CM},
{"mm", STYLE_UNIT_MM},
{"em", STYLE_UNIT_EM},
{"px", STYLE_UNIT_PX},
{"ex", STYLE_UNIT_XHEIGHT},
{"%", STYLE_UNIT_PERCENT}
};
#define NB_UNITS (sizeof(CSSUnitNames) / sizeof(struct unit_def))
static char *DocURL = NULL; /* The parsed CSS file */
static Document ParsedDoc; /* The document to which CSS are to be applied */
static int LineNumber = -1; /* The line where the error occurs */
static int NewLineSkipped = 0;
/*----------------------------------------------------------------------
SkipWord:
----------------------------------------------------------------------*/
static char *SkipWord (char *ptr)
{
# ifdef _WINDOWS
/* iswalnum is supposed to be supported by the i18n veriosn of libc
use it when available */
while (iswalnum (*ptr) || *ptr == '-' || *ptr == '%')
# else /* !_WINDOWS */
while (isalnum((int)*ptr) || *ptr == '-' || *ptr == '%')
# endif /* !_WINDOWS */
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);
}
/*----------------------------------------------------------------------
CSSParseError
print the error message msg on stderr.
When the line is 0 ask to expat the current line number
----------------------------------------------------------------------*/
static void CSSParseError (char *msg, char *value)
{
if (!TtaIsPrinting () && ParsedDoc > 0)
{
if (!ErrFile)
{
if (OpenParsingErrors (ParsedDoc) == FALSE)
return;
}
if (DocURL != NULL)
{
fprintf (ErrFile, "*** 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);
}
}
/*----------------------------------------------------------------------
SkipProperty:
----------------------------------------------------------------------*/
static char *SkipProperty (char *ptr)
{
char *deb;
char c;
deb = ptr;
while (*ptr != EOS && *ptr != ';' && *ptr != '}')
ptr++;
/* print the skipped property */
c = *ptr;
*ptr = EOS;
#ifdef CSS_WARNING
if (*deb != EOS)
CSSParseError ("CSS property ignored \"", deb);
#endif /* CSS_WARNING */
*ptr = c;
return (ptr);
}
/*----------------------------------------------------------------------
SkipProperty:
----------------------------------------------------------------------*/
static char *SkipValue (char *ptr, ThotBool error)
{
char *deb;
char c;
deb = ptr;
while (*ptr != EOS && *ptr != ';' && *ptr != '}')
ptr++;
/* print the skipped property */
c = *ptr;
*ptr = EOS;
if (*deb != EOS && *deb != ',')
{
if (error)
CSSParseError ("invalid CSS value \"", deb);
#ifdef CSS_WARNING
else
CSSParseError ("CSS value ignored \"", deb);
#endif /* CSS_WARNING */
}
*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 = STYLE_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 = STYLE_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 = STYLE_UNIT_REL;
cssRule = ParseNumber (cssRule, pval);
if (pval->typed_data.unit == STYLE_UNIT_INVALID)
cssRule = SkipWord (cssRule);
else
{
cssRule = SkipBlanksAndComments (cssRule);
for (uni = 0; uni < NB_UNITS; uni++)
{
if (!strncasecmp (CSSUnitNames[uni].sign, cssRule,
strlen (CSSUnitNames[uni].sign)))
{
pval->typed_data.unit = CSSUnitNames[uni].unit;
return (cssRule + strlen (CSSUnitNames[uni].sign));
}
}
/* not in the list of predefined units */
pval->typed_data.unit = STYLE_UNIT_PX;
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseBorderValue
----------------------------------------------------------------------*/
static char *ParseBorderValue (char *cssRule, PresentationValue *border)
{
/* first parse the attribute string */
border->typed_data.value = 0;
border->typed_data.unit = STYLE_UNIT_INVALID;
border->typed_data.real = FALSE;
if (!strncasecmp (cssRule, "thin", 4))
{
border->typed_data.unit = STYLE_UNIT_PX;
border->typed_data.value = 1;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "medium", 6))
{
border->typed_data.unit = STYLE_UNIT_PX;
border->typed_data.value = 3;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "thick", 5))
{
border->typed_data.unit = STYLE_UNIT_PX;
border->typed_data.value = 5;
cssRule = SkipWord (cssRule);
}
else if (isdigit (*cssRule) || *cssRule == '.')
cssRule = ParseCSSUnit (cssRule, border);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseBorderStyle
----------------------------------------------------------------------*/
static char *ParseBorderStyle (char *cssRule, PresentationValue *border)
{
/* first parse the attribute string */
border->typed_data.value = 0;
border->typed_data.unit = STYLE_UNIT_PX;
border->typed_data.real = FALSE;
if (!strncasecmp (cssRule, "none", 4))
border->typed_data.value = STYLE_BORDERNONE;
else if (!strncasecmp (cssRule, "hidden", 6))
border->typed_data.value = STYLE_BORDERHIDDEN;
else if (!strncasecmp (cssRule, "dotted", 6))
border->typed_data.value = STYLE_BORDERDOTTED;
else if (!strncasecmp (cssRule, "dashed", 6))
border->typed_data.value = STYLE_BORDERDASHED;
else if (!strncasecmp (cssRule, "solid", 5))
border->typed_data.value = STYLE_BORDERSOLID;
else if (!strncasecmp (cssRule, "double", 6))
border->typed_data.value = STYLE_BORDERDOUBLE;
else if (!strncasecmp (cssRule, "groove", 6))
border->typed_data.value = STYLE_BORDERGROOVE;
else if (!strncasecmp (cssRule, "ridge", 5))
border->typed_data.value = STYLE_BORDERRIDGE;
else if (!strncasecmp (cssRule, "inset", 5))
border->typed_data.value = STYLE_BORDERINSET;
else if (!strncasecmp (cssRule, "outset", 6))
border->typed_data.value = STYLE_BORDEROUTSET;
else
{
/* invalid style */
border->typed_data.unit = STYLE_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 = STYLE_UNIT_INVALID;
val->typed_data.real = FALSE;
val->typed_data.value = 0;
ptr = TtaGiveRGB (cssRule, &redval, &greenval, &blueval);
if (ptr == cssRule)
{
cssRule = SkipValue (cssRule, TRUE);
val->typed_data.value = 0;
val->typed_data.unit = STYLE_UNIT_INVALID;
}
else
{
best = TtaGetThotColor (redval, greenval, blueval);
val->typed_data.value = best;
val->typed_data.unit = STYLE_UNIT_REL;
cssRule = ptr;
}
val->typed_data.real = 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 != STYLE_UNIT_INVALID)
{
TtaSetStylePresentation (PRBorderTopWidth, element, tsch, context, border);
border.typed_data.value = 1;
border.typed_data.unit = STYLE_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 != STYLE_UNIT_INVALID)
{
TtaSetStylePresentation (PRBorderBottomWidth, element, tsch, context, border);
border.typed_data.value = 1;
border.typed_data.unit = STYLE_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 != STYLE_UNIT_INVALID)
{
TtaSetStylePresentation (PRBorderLeftWidth, element, tsch, context, border);
border.typed_data.value = 1;
border.typed_data.unit = STYLE_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 != STYLE_UNIT_INVALID)
{
TtaSetStylePresentation (PRBorderRightWidth, element, tsch, context, border);
border.typed_data.value = 1;
border.typed_data.unit = STYLE_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;
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != STYLE_UNIT_INVALID)
/* 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;
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != STYLE_UNIT_INVALID)
/* 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;
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != STYLE_UNIT_INVALID)
/* 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;
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != STYLE_UNIT_INVALID)
/* 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 != STYLE_UNIT_INVALID)
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 != STYLE_UNIT_INVALID)
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 != STYLE_UNIT_INVALID)
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 != STYLE_UNIT_INVALID)
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 (cssRule, TRUE);
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 (cssRule, TRUE);
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 (cssRule, TRUE);
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 (cssRule, TRUE);
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);
}
/*----------------------------------------------------------------------
ParseCSSClear: parse a CSS clear attribute string
----------------------------------------------------------------------*/
static char *ParseCSSClear (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
cssRule = SkipValue (cssRule, FALSE);
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 = STYLE_UNIT_REL;
pval.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "block", 5))
{
/* pval.typed_data.value = STYLE_INLINE;
TtaSetStylePresentation (PRLine, element, tsch, context, pval); */
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "inline", 6))
{
/* pval.typed_data.value = STYLE_INLINE;
TtaSetStylePresentation (PRLine, element, tsch, context, pval); */
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "none", 4))
{
pval.typed_data.value = STYLE_HIDE;
TtaSetStylePresentation (PRVisibility, element, tsch, context, pval);
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "list-item", 9))
cssRule = SkipValue (cssRule, FALSE);
else
CSSParseError ("Invalid display value", cssRule);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSFloat: parse a CSS float attribute string
----------------------------------------------------------------------*/
static char *ParseCSSFloat (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
cssRule = SkipValue (cssRule, FALSE);
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 (cssRule, FALSE);
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 (cssRule, FALSE);
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 (cssRule, FALSE);
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 (cssRule, FALSE);
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 (cssRule, FALSE);
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 = STYLE_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
{
CSSParseError ("Invalid align value", cssRule);
return (cssRule);
}
/*
* install the new presentation.
*/
if (align.typed_data.value)
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 = STYLE_UNIT_REL;
direction.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "ltr", 3))
{
direction.typed_data.value = STYLE_LEFTTORIGHT;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "rtl", 3))
{
direction.typed_data.value = STYLE_RIGHTTOLEFT;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/* not implemented */
cssRule = SkipWord (cssRule);
return (cssRule);
}
else
{
CSSParseError ("Invalid direction value", cssRule);
return (cssRule);
}
/*
* install the new presentation.
*/
if (direction.typed_data.value)
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 = STYLE_UNIT_REL;
bidi.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "normal", 6))
{
bidi.typed_data.value = STYLE_BIDINORMAL;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "embed", 5))
{
bidi.typed_data.value = STYLE_BIDIEMBED;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "override", 8))
{
bidi.typed_data.value = STYLE_BIDIOVERRIDE;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/* not implemented */
cssRule = SkipWord (cssRule);
return (cssRule);
}
else
{
CSSParseError ("Invalid unicode-bidi value", cssRule);
return (cssRule);
}
/*
* install the new presentation.
*/
if (bidi.typed_data.value)
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;
cssRule = SkipBlanksAndComments (cssRule);
cssRule = ParseCSSUnit (cssRule, &pval);
if (pval.typed_data.unit == STYLE_UNIT_INVALID)
return (cssRule);
/* install the attribute */
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 (cssRule, FALSE);
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 (cssRule, FALSE);
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
return (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 (cssRule, FALSE);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSLineSpacing: parse a CSS font leading string
we expect the input string describing the attribute to be
value% or value
----------------------------------------------------------------------*/
static char *ParseCSSLineSpacing (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue lead;
cssRule = ParseCSSUnit (cssRule, &lead);
if (lead.typed_data.unit != STYLE_UNIT_INVALID)
/* install the new presentation */
TtaSetStylePresentation (PRLineSpacing, element, tsch, context, lead);
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)
{
PresentationValue pval;
char *ptr = NULL;
ThotBool real;
pval.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "larger", 6))
{
pval.typed_data.unit = STYLE_UNIT_PERCENT;
pval.typed_data.value = 130;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "smaller", 7))
{
pval.typed_data.unit = STYLE_UNIT_PERCENT;
pval.typed_data.value = 80;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "xx-small", 8))
{
pval.typed_data.unit = STYLE_UNIT_REL;
pval.typed_data.value = 1;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "x-small", 7))
{
pval.typed_data.unit = STYLE_UNIT_REL;
pval.typed_data.value = 2;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "small", 5))
{
pval.typed_data.unit = STYLE_UNIT_REL;
pval.typed_data.value = 3;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "medium", 6))
{
pval.typed_data.unit = STYLE_UNIT_REL;
pval.typed_data.value = 4;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "large", 5))
{
pval.typed_data.unit = STYLE_UNIT_REL;
pval.typed_data.value = 5;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "x-large", 7))
{
pval.typed_data.unit = STYLE_UNIT_REL;
pval.typed_data.value = 6;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "xx-large", 8))
{
pval.typed_data.unit = STYLE_UNIT_REL;
pval.typed_data.value = 7;
cssRule = SkipWord (cssRule);
}
else
{
/* look for a '/' within the current cssRule */
ptr = strchr (cssRule, '/');
if (ptr != NULL)
{
/* keep the line spacing rule */
ptr[0] = EOS;
ptr = &ptr[1];
}
cssRule = ParseCSSUnit (cssRule, &pval);
if (pval.typed_data.unit == STYLE_UNIT_INVALID ||
pval.typed_data.value < 0)
return (cssRule);
if (pval.typed_data.unit == STYLE_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 == STYLE_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 = STYLE_UNIT_PERCENT;
}
}
}
/* install the presentation style */
TtaSetStylePresentation (PRSize, element, tsch, context, pval);
if (ptr != NULL)
cssRule = ParseCSSLineSpacing (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;
font.typed_data.value = 0;
font.typed_data.unit = STYLE_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 = STYLE_FONT_TIMES;
cssRule += 5;
}
else if (!strncasecmp (cssRule, "serif", 5) &&
(quoteChar == EOS || quoteChar == cssRule[5]))
{
font.typed_data.value = STYLE_FONT_TIMES;
cssRule += 5;
if (quoteChar != EOS)
cssRule++;
}
else if (!strncasecmp (cssRule, "helvetica", 9) &&
(quoteChar == EOS || quoteChar == cssRule[9]))
{
font.typed_data.value = STYLE_FONT_HELVETICA;
cssRule += 9;
if (quoteChar != EOS)
cssRule++;
}
else if (!strncasecmp (cssRule, "verdana", 7) &&
(quoteChar == EOS || quoteChar == cssRule[7]))
{
font.typed_data.value = STYLE_FONT_HELVETICA;
cssRule += 7;
if (quoteChar != EOS)
cssRule++;
}
else if (!strncasecmp (cssRule, "sans-serif", 10) &&
(quoteChar == EOS || quoteChar == cssRule[10]))
{
font.typed_data.value = STYLE_FONT_HELVETICA;
cssRule += 10;
if (quoteChar != EOS)
cssRule++;
}
else if (!strncasecmp (cssRule, "courier", 7) &&
(quoteChar == EOS || quoteChar == cssRule[7]))
{
font.typed_data.value = STYLE_FONT_COURIER;
cssRule += 7;
if (quoteChar != EOS)
cssRule++;
}
else if (!strncasecmp (cssRule, "monospace", 9) &&
(quoteChar == EOS || quoteChar == cssRule[9]))
{
font.typed_data.value = STYLE_FONT_COURIER;
cssRule += 9;
if (quoteChar != EOS)
cssRule++;
}
else
/* unknown font name. Skip it */
{
if (quoteChar != EOS)
cssRule = SkipQuotedString (cssRule, quoteChar);
else
cssRule = SkipWord (cssRule);
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule == ',')
{
cssRule++;
cssRule = ParseCSSFontFamily (element, tsch, context, cssRule, css, isHTML);
return (cssRule);
}
}
if (font.typed_data.value != 0)
{
cssRule = SkipBlanksAndComments (cssRule);
cssRule = SkipValue (cssRule, FALSE);
/* install the new presentation */
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 *ParseCSSFontWeight (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue weight;
weight.typed_data.value = 0;
weight.typed_data.unit = STYLE_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 = STYLE_WEIGHT_BOLD;
else
weight.typed_data.value = STYLE_WEIGHT_NORMAL;
/* install the new presentation */
TtaSetStylePresentation (PRWeight, element, tsch, context, weight);
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)
{
PresentationValue style;
style.typed_data.value = 0;
style.typed_data.unit = STYLE_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);
}
else
return (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 *ParseCSSFontStyle (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 = STYLE_UNIT_REL;
style.typed_data.real = FALSE;
size.typed_data.value = 0;
size.typed_data.unit = STYLE_UNIT_REL;
size.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "italic", 6))
{
style.typed_data.value = STYLE_FONT_ITALICS;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "oblique", 7))
{
style.typed_data.value = STYLE_FONT_OBLIQUE;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "normal", 6))
{
style.typed_data.value = STYLE_FONT_ROMAN;
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)
TtaSetStylePresentation (PRStyle, element, tsch, context, style);
if (size.typed_data.value != 0)
{
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);
}
/*----------------------------------------------------------------------
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))
;
else if (!strncasecmp (cssRule, "icon", 4))
;
else if (!strncasecmp (cssRule, "menu", 4))
;
else if (!strncasecmp (cssRule, "message-box", 11))
;
else if (!strncasecmp (cssRule, "small-caption", 13))
;
else if (!strncasecmp (cssRule, "status-bar", 10))
;
else
{
while (*cssRule != ';' && *cssRule != EOS && *cssRule != ',')
{
ptr = cssRule;
skippedNL = NewLineSkipped;
cssRule = ParseCSSFontStyle (element, tsch, context, cssRule, css, isHTML);
if (ptr == cssRule)
{
NewLineSkipped = skippedNL;
cssRule = ParseCSSFontVariant (element, tsch, context, cssRule, css, isHTML);
}
if (ptr == cssRule)
{
NewLineSkipped = skippedNL;
cssRule = ParseCSSFontWeight (element, tsch, context, cssRule, css, isHTML);
}
if (ptr == cssRule)
{
NewLineSkipped = skippedNL;
cssRule = ParseCSSFontSize (element, tsch, context, cssRule, css, isHTML);
}
if (ptr == cssRule)
{
NewLineSkipped = skippedNL;
cssRule = ParseCSSFontFamily (element, tsch, context, cssRule, css, isHTML);
}
if (ptr == cssRule)
cssRule = SkipValue (cssRule, TRUE);
cssRule = SkipBlanksAndComments (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 = STYLE_UNIT_REL;
decor.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "underline", strlen ("underline")))
{
decor.typed_data.value = Underline;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "overline", strlen ("overline")))
{
decor.typed_data.value = Overline;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "line-through", strlen ("line-through")))
{
decor.typed_data.value = CrossOut;
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "blink", strlen ("blink")))
{
/* the blink text-decoration attribute is not supported */
cssRule = SkipWord (cssRule);
}
else if (!strncasecmp (cssRule, "none", strlen ("none")))
{
decor.typed_data.value = NoUnderline;
cssRule = SkipWord (cssRule);
}
else
{
CSSParseError ("Invalid text decoration", cssRule);
return (cssRule);
}
/*
* install the new presentation.
*/
if (decor.typed_data.value)
{
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;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
if (!strcasecmp (cssRule, "auto"))
cssRule = SkipWord (cssRule);
else
{
cssRule = ParseCSSUnit (cssRule, &val);
if (val.typed_data.unit != STYLE_UNIT_INVALID)
/* 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;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
if (!strcasecmp (cssRule, "auto"))
cssRule = SkipWord (cssRule);
else
{
cssRule = ParseCSSUnit (cssRule, &val);
if (val.typed_data.unit != STYLE_UNIT_INVALID)
/* 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;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &margin);
if (margin.typed_data.unit != STYLE_UNIT_INVALID)
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;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &margin);
if (margin.typed_data.unit != STYLE_UNIT_INVALID)
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;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &margin);
if (margin.typed_data.unit != STYLE_UNIT_INVALID)
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;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &margin);
if (margin.typed_data.unit != STYLE_UNIT_INVALID)
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;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &padding);
if (padding.typed_data.unit != STYLE_UNIT_INVALID)
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;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &padding);
if (padding.typed_data.unit != STYLE_UNIT_INVALID)
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;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &padding);
if (padding.typed_data.unit != STYLE_UNIT_INVALID)
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;
cssRule = SkipBlanksAndComments (cssRule);
/* first parse the attribute string */
cssRule = ParseCSSUnit (cssRule, &padding);
if (padding.typed_data.unit != STYLE_UNIT_INVALID)
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;
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != STYLE_UNIT_INVALID)
/* 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;
unsigned int savedtype = 0;
ThotBool moved;
/* move the BODY rule to the HTML element */
moved = (context->type == HTML_EL_BODY && isHTML);
if (moved)
{
if (element)
element = TtaGetMainRoot (context->doc);
else
{
savedtype = context->type;
context->type = HTML_EL_Document;
}
}
best.typed_data.unit = STYLE_UNIT_INVALID;
best.typed_data.real = FALSE;
if (!strncasecmp (cssRule, "transparent", strlen ("transparent")))
{
best.typed_data.value = STYLE_PATTERN_NONE;
best.typed_data.unit = STYLE_UNIT_REL;
TtaSetStylePresentation (PRFillPattern, element, tsch, context, best);
cssRule = SkipWord (cssRule);
}
else
{
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != STYLE_UNIT_INVALID)
{
/* install the new presentation. */
TtaSetStylePresentation (PRBackground, element, tsch, context, best);
/* thot specificity: need to set fill pattern for background color */
best.typed_data.value = STYLE_PATTERN_BACKGROUND;
best.typed_data.unit = STYLE_UNIT_REL;
TtaSetStylePresentation (PRFillPattern, element, tsch, context, best);
best.typed_data.value = 1;
best.typed_data.unit = STYLE_UNIT_REL;
TtaSetStylePresentation (PRShowBox, element, tsch, context, best);
}
}
/* restore the refered element */
if (moved && !element)
context->type = savedtype;
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;
best.typed_data.unit = STYLE_UNIT_INVALID;
best.typed_data.real = FALSE;
if (!strncasecmp (cssRule, "none", 4))
{
best.typed_data.value = -2; /* -2 means transparent */
best.typed_data.unit = STYLE_UNIT_REL;
TtaSetStylePresentation (PRForeground, element, tsch, context, best);
cssRule = SkipWord (cssRule);
}
else
{
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != STYLE_UNIT_INVALID)
/* 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;
best.typed_data.unit = STYLE_UNIT_INVALID;
best.typed_data.real = FALSE;
if (!strncasecmp (cssRule, "none", 4))
{
best.typed_data.value = STYLE_PATTERN_NONE;
best.typed_data.unit = STYLE_UNIT_REL;
TtaSetStylePresentation (PRFillPattern, element, tsch, context, best);
cssRule = SkipWord (cssRule);
}
else
{
cssRule = ParseCSSColor (cssRule, &best);
if (best.typed_data.unit != STYLE_UNIT_INVALID)
{
/* install the new presentation. */
TtaSetStylePresentation (PRBackground, element, tsch, context, best);
/* thot specificity: need to set fill pattern for background color */
best.typed_data.value = STYLE_PATTERN_BACKGROUND;
best.typed_data.unit = STYLE_UNIT_REL;
TtaSetStylePresentation (PRFillPattern, 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)
{
DisplayMode dispMode;
BackgroundImageCallbackPtr callblock;
Element el;
PSchema tsch;
PresentationContext context;
PresentationValue image;
PresentationValue value;
callblock = (BackgroundImageCallbackPtr) extra;
if (callblock == NULL)
return;
/* avoid too many redisplay */
dispMode = TtaGetDisplayMode (doc);
if (dispMode == DisplayImmediately)
TtaSetDisplayMode (doc, DeferredDisplay);
el = callblock->el;
tsch = callblock->tsch;
context = &callblock->context.specific;
/* Ok the image was fetched, finish the background-image handling */
image.pointer = file;
TtaSetStylePresentation (PRBackgroundPicture, el, tsch, context, image);
/* enforce the showbox */
value.typed_data.value = 1;
value.typed_data.unit = STYLE_UNIT_REL;
value.typed_data.real = FALSE;
TtaSetStylePresentation (PRShowBox, el, tsch, context, value);
TtaFreeMemory (callblock);
/* restore the display mode */
if (dispMode == DisplayImmediately)
TtaSetDisplayMode (doc, dispMode);
}
/*----------------------------------------------------------------------
GetCSSBackgroundURL searches a CSS BackgroundImage url within
the styleString.
Returns NULL or a new allocated url string.
----------------------------------------------------------------------*/
char *GetCSSBackgroundURL (char *styleString)
{
char *b, *e, *ptr;
int len;
ptr = NULL;
b = strstr (styleString, "url");
if (b != NULL)
{
b += 3;
b = SkipBlanksAndComments (b);
if (*b == '(')
{
b++;
b = SkipBlanksAndComments (b);
/*** Caution: Strings can either be written with double quotes or
with single quotes. Only double quotes are handled here.
Escaped quotes are not handled. See function SkipQuotedString */
if (*b == '"')
{
b++;
/* search the url end */
e = b;
while (*e != EOS && *e != '"')
e++;
}
else
{
/* search the url end */
e = b;
while (*e != EOS && *e != ')')
e++;
}
if (*e != EOS)
{
len = (int)(e - b);
ptr = (char*) TtaGetMemory (len+1);
strncpy (ptr, b, len);
ptr[len] = EOS;
}
}
}
return (ptr);
}
/*----------------------------------------------------------------------
ParseCSSBackgroundImage: parse a CSS BackgroundImage attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBackgroundImage (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
Element el;
GenericContext gblock;
PresentationContext sblock;
BackgroundImageCallbackPtr callblock;
PresentationValue image, value;
char *url;
char *bg_image;
char saved;
char *base;
char tempname[MAX_LENGTH];
char imgname[MAX_LENGTH];
unsigned int savedtype = 0;
ThotBool moved;
/* default element for FetchImage */
el = TtaGetMainRoot (context->doc);
/* move the BODY rule to the HTML element */
moved = (context->type == HTML_EL_BODY && isHTML);
if (moved)
{
if (element)
element = el;
else
{
savedtype = context->type;
context->type = HTML_EL_Document;
}
}
else if (element)
el = element;
url = NULL;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "url", 3))
{
cssRule += 3;
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule == '(')
{
cssRule++;
cssRule = SkipBlanksAndComments (cssRule);
/*** Caution: Strings can either be written with double quotes or
with single quotes. Only double quotes are handled here.
Escaped quotes are not handled. See function SkipQuotedString */
if (*cssRule == '"')
{
cssRule++;
base = cssRule;
while (*cssRule != EOS && *cssRule != '"')
cssRule++;
}
else
{
base = cssRule;
while (*cssRule != EOS && *cssRule != ')')
cssRule++;
}
saved = *cssRule;
*cssRule = EOS;
url = TtaStrdup (base);
*cssRule = saved;
if (saved == '"')
/* we need to skip two characters */
cssRule++;
}
cssRule++;
if (context->destroy)
{
/* remove the background image PRule */
image.pointer = NULL;
TtaSetStylePresentation (PRBackgroundPicture, element, tsch, context, image);
if (TtaGetStylePresentation (PRFillPattern, element, tsch, context, &value) < 0)
{
/* there is no FillPattern rule -> remove ShowBox rule */
value.typed_data.value = 1;
value.typed_data.unit = STYLE_UNIT_REL;
value.typed_data.real = FALSE;
TtaSetStylePresentation (PRShowBox, element, tsch, context, value);
}
}
else if (url)
{
bg_image = TtaGetEnvString ("ENABLE_BG_IMAGES");
if (bg_image == NULL || !strcasecmp (bg_image, "yes"))
{
callblock = (BackgroundImageCallbackPtr) TtaGetMemory(sizeof(BackgroundImageCallbackBlock));
if (callblock != NULL)
{
callblock->el = element;
callblock->tsch = tsch;
if (element == NULL)
{
gblock = (GenericContext) context;
memcpy (&callblock->context.generic, gblock,
sizeof (GenericContextBlock));
}
else
{
sblock = context;
memcpy (&callblock->context.specific, sblock,
sizeof(PresentationContextBlock));
}
/* check if the image url is related to an external CSS */
if (css != NULL && css->category == CSS_EXTERNAL_STYLE)
{
NormalizeURL (url, 0, tempname, imgname, css->url);
/* fetch and display background image of element */
FetchImage (context->doc, el, tempname, AMAYA_LOAD_IMAGE, ParseCSSBackgroundImageCallback, callblock);
}
else
FetchImage (context->doc, el, url, AMAYA_LOAD_IMAGE, ParseCSSBackgroundImageCallback, callblock);
}
}
if (url)
TtaFreeMemory (url);
}
}
/* restore the refered element */
if (moved && !element)
context->type = savedtype;
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBackgroundRepeat: parse a CSS BackgroundRepeat attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBackgroundRepeat (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue repeat;
unsigned int savedtype = 0;
ThotBool moved;
/* move the BODY rule to the HTML element */
moved = (context->type == HTML_EL_BODY && isHTML);
if (moved)
{
if (element)
element = TtaGetMainRoot (context->doc);
else
{
savedtype = context->type;
context->type = HTML_EL_Document;
}
}
repeat.typed_data.value = STYLE_REALSIZE;
repeat.typed_data.unit = STYLE_UNIT_REL;
repeat.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "no-repeat", 9))
repeat.typed_data.value = STYLE_REALSIZE;
else if (!strncasecmp (cssRule, "repeat-y", 8))
repeat.typed_data.value = STYLE_VREPEAT;
else if (!strncasecmp (cssRule, "repeat-x", 8))
repeat.typed_data.value = STYLE_HREPEAT;
else if (!strncasecmp (cssRule, "repeat", 6))
repeat.typed_data.value = STYLE_REPEAT;
else
return (cssRule);
/* install the new presentation */
TtaSetStylePresentation (PRPictureMode, element, tsch, context, repeat);
cssRule = SkipWord (cssRule);
/* restore the refered element */
if (moved && !element)
context->type = savedtype;
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBackgroundAttachment: parse a CSS BackgroundAttachment
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBackgroundAttachment (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
unsigned int savedtype = 0;
ThotBool moved;
/* move the BODY rule to the HTML element */
moved = (context->type == HTML_EL_BODY && isHTML);
if (moved)
{
if (element)
element = TtaGetMainRoot (context->doc);
else
{
savedtype = context->type;
context->type = HTML_EL_Document;
}
}
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "scroll", 6))
cssRule = SkipWord (cssRule);
else if (!strncasecmp (cssRule, "fixed", 5))
cssRule = SkipWord (cssRule);
/* restore the refered element */
if (moved && !element)
context->type = savedtype;
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBackgroundPosition: parse a CSS BackgroundPosition
attribute string.
----------------------------------------------------------------------*/
static char *ParseCSSBackgroundPosition (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue repeat;
unsigned int savedtype = 0;
ThotBool moved;
ThotBool ok;
/* move the BODY rule to the HTML element */
moved = (context->type == HTML_EL_BODY && isHTML);
if (moved)
{
if (element)
element = TtaGetMainRoot (context->doc);
else
{
savedtype = context->type;
context->type = HTML_EL_Document;
}
}
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 == '.')
cssRule = SkipWord (cssRule);
else
ok = FALSE;
if (ok)
{
/* force realsize for the background image */
repeat.typed_data.value = STYLE_REALSIZE;
repeat.typed_data.unit = STYLE_UNIT_REL;
repeat.typed_data.real = FALSE;
TtaSetStylePresentation (PRPictureMode, element, tsch, context, repeat);
}
/* restore the refered element */
if (moved && !element)
context->type = savedtype;
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSBackground: parse a CSS background attribute
----------------------------------------------------------------------*/
static char *ParseCSSBackground (Element element, PSchema tsch,
PresentationContext context, 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))
cssRule = ParseCSSBackgroundImage (element, tsch, context, cssRule,
css, isHTML);
/* perhaps a Background Attachment */
else if (!strncasecmp (cssRule, "scroll", 6) ||
!strncasecmp (cssRule, "fixed", 5))
cssRule = ParseCSSBackgroundAttachment (element, tsch, context,
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, context,
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, context,
cssRule, css, isHTML);
/* perhaps a Background Color */
else
{
skippedNL = NewLineSkipped;
/* check if the rule has been found */
ptr = cssRule;
cssRule = ParseCSSBackgroundColor (element, tsch, context,
cssRule, css, isHTML);
if (ptr == cssRule)
{
NewLineSkipped = skippedNL;
/* rule not found */
cssRule = SkipProperty (cssRule);
}
}
cssRule = SkipBlanksAndComments (cssRule);
}
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPageBreakBefore: parse a CSS page-break-before attribute
----------------------------------------------------------------------*/
static char *ParseCSSPageBreakBefore (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue page;
page.typed_data.unit = STYLE_UNIT_INVALID;
page.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "auto", 4))
{
/*page.typed_data.unit = STYLE_UNIT_REL;*/
page.typed_data.value = STYLE_AUTO;
}
else if (!strncasecmp (cssRule, "always", 6))
{
page.typed_data.unit = STYLE_UNIT_REL;
page.typed_data.value = STYLE_ALWAYS;
}
else if (!strncasecmp (cssRule, "avoid", 5))
{
page.typed_data.unit = STYLE_UNIT_REL;
page.typed_data.value = STYLE_AVOID;
}
else if (!strncasecmp (cssRule, "left", 4))
{
page.typed_data.unit = STYLE_UNIT_REL;
page.typed_data.value = STYLE_PAGELEFT;
}
else if (!strncasecmp (cssRule, "right", 5))
{
page.typed_data.unit = STYLE_UNIT_REL;
page.typed_data.value = STYLE_PAGERIGHT;
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/*page.typed_data.unit = STYLE_UNIT_REL;*/
page.typed_data.value = STYLE_INHERIT;
}
cssRule = SkipWord (cssRule);
/* install the new presentation */
if (page.typed_data.unit == STYLE_UNIT_REL &&
page.typed_data.value == STYLE_ALWAYS)
TtaSetStylePresentation (PRPageBefore, element, tsch, context, page);
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPageBreakAfter: parse a CSS page-break-after attribute
----------------------------------------------------------------------*/
static char *ParseCSSPageBreakAfter (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue page;
page.typed_data.unit = STYLE_UNIT_INVALID;
page.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "auto", 4))
{
/*page.typed_data.unit = STYLE_UNIT_REL;*/
page.typed_data.value = STYLE_AUTO;
}
else if (!strncasecmp (cssRule, "always", 6))
{
page.typed_data.unit = STYLE_UNIT_REL;
page.typed_data.value = STYLE_ALWAYS;
}
else if (!strncasecmp (cssRule, "avoid", 5))
{
page.typed_data.unit = STYLE_UNIT_REL;
page.typed_data.value = STYLE_AVOID;
}
else if (!strncasecmp (cssRule, "left", 4))
{
page.typed_data.unit = STYLE_UNIT_REL;
page.typed_data.value = STYLE_PAGELEFT;
}
else if (!strncasecmp (cssRule, "right", 5))
{
page.typed_data.unit = STYLE_UNIT_REL;
page.typed_data.value = STYLE_PAGERIGHT;
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/*page.typed_data.unit = STYLE_UNIT_REL;*/
page.typed_data.value = STYLE_INHERIT;
}
cssRule = SkipWord (cssRule);
/* install the new presentation */
/*if (page.typed_data.unit == STYLE_UNIT_REL)
TtaSetStylePresentation (PRPageAfter, element, tsch, context, page);*/
return (cssRule);
}
/*----------------------------------------------------------------------
ParseCSSPageBreakInside: parse a CSS page-break-inside attribute
----------------------------------------------------------------------*/
static char *ParseCSSPageBreakInside (Element element, PSchema tsch,
PresentationContext context,
char *cssRule, CSSInfoPtr css,
ThotBool isHTML)
{
PresentationValue page;
page.typed_data.unit = STYLE_UNIT_INVALID;
page.typed_data.real = FALSE;
cssRule = SkipBlanksAndComments (cssRule);
if (!strncasecmp (cssRule, "auto", 4))
{
/*page.typed_data.unit = STYLE_UNIT_REL;*/
page.typed_data.value = STYLE_AUTO;
}
else if (!strncasecmp (cssRule, "avoid", 5))
{
page.typed_data.unit = STYLE_UNIT_REL;
page.typed_data.value = STYLE_AVOID;
}
else if (!strncasecmp (cssRule, "inherit", 7))
{
/*page.typed_data.unit = STYLE_UNIT_REL;*/
page.typed_data.value = STYLE_INHERIT;
}
cssRule = SkipWord (cssRule);
/* install the new presentation */
/*if (page.typed_data.unit == STYLE_UNIT_REL &&
page.typed_data.value == STYLE_AVOID)
TtaSetStylePresentation (PRPageInside, element, tsch, context, page);*/
return (cssRule);
}
/*----------------------------------------------------------------------
ParseSVGStrokeWidth: parse a SVG stroke-width property value.
----------------------------------------------------------------------*/
static char *ParseSVGStrokeWidth (Element element, PSchema tsch,
PresentationContext context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
PresentationValue width;
cssRule = SkipBlanksAndComments (cssRule);
width.typed_data.value = 0;
width.typed_data.unit = STYLE_UNIT_INVALID;
width.typed_data.real = FALSE;
if (isdigit (*cssRule) || *cssRule == '.')
cssRule = ParseCSSUnit (cssRule, &width);
if (width.typed_data.unit != STYLE_UNIT_INVALID)
{
TtaSetStylePresentation (PRLineWeight, element, tsch, context, width);
width.typed_data.value = 1;
width.typed_data.unit = STYLE_UNIT_REL;
}
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[] =
{
{"font-family", ParseCSSFontFamily},
{"font-style", ParseCSSFontStyle},
{"font-variant", ParseCSSFontVariant},
{"font-weight", ParseCSSFontWeight},
{"font-size", ParseCSSFontSize},
{"font", ParseCSSFont},
{"color", ParseCSSForeground},
{"background-color", ParseCSSBackgroundColor},
{"background-image", ParseCSSBackgroundImage},
{"background-repeat", ParseCSSBackgroundRepeat},
{"background-attachment", ParseCSSBackgroundAttachment},
{"background-position", ParseCSSBackgroundPosition},
{"background", ParseCSSBackground},
{"word-spacing", ParseCSSWordSpacing},
{"letter-spacing", ParseCSSLetterSpacing},
{"text-decoration", ParseCSSTextDecoration},
{"vertical-align", ParseCSSVerticalAlign},
{"text-transform", ParseCSSTextTransform},
{"text-align", ParseCSSTextAlign},
{"text-indent", ParseCSSTextIndent},
{"line-height", ParseCSSLineSpacing},
{"direction", ParseCSSDirection},
{"unicode-bidi", ParseCSSUnicodeBidi},
{"margin-top", ParseCSSMarginTop},
{"margin-right", ParseCSSMarginRight},
{"margin-bottom", ParseCSSMarginBottom},
{"margin-left", ParseCSSMarginLeft},
{"margin", ParseCSSMargin},
{"padding-top", ParseCSSPaddingTop},
{"padding-right", ParseCSSPaddingRight},
{"padding-bottom", ParseCSSPaddingBottom},
{"padding-left", ParseCSSPaddingLeft},
{"padding", ParseCSSPadding},
{"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},
{"width", ParseCSSWidth},
{"height", ParseCSSHeight},
{"float", ParseCSSFloat},
{"clear", ParseCSSClear},
{"display", ParseCSSDisplay},
{"white-space", ParseCSSWhiteSpace},
{"list-style-type", ParseCSSListStyleType},
{"list-style-image", ParseCSSListStyleImage},
{"list-style-position", ParseCSSListStylePosition},
{"list-style", ParseCSSListStyle},
{"page-break-before", ParseCSSPageBreakBefore},
{"page-break-after", ParseCSSPageBreakAfter},
{"page-break-inside", ParseCSSPageBreakInside},
/* SVG extensions */
{"stroke-width", ParseSVGStrokeWidth},
{"stroke", ParseSVGStroke},
{"fill", ParseSVGFill}
};
#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 context, char *cssRule,
CSSInfoPtr css, ThotBool isHTML)
{
DisplayMode dispMode;
char *p = NULL;
int lg;
unsigned int i;
ThotBool found;
/* avoid too many redisplay */
dispMode = TtaGetDisplayMode (context->doc);
if (dispMode == DisplayImmediately)
TtaSetDisplayMode (context->doc, DeferredDisplay);
while (*cssRule != EOS)
{
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule == '{')
{
cssRule++;
CSSParseError ("Invalid character", "{");
cssRule = SkipBlanksAndComments (cssRule);
}
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);
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)
{
p = CSSProperties[i].parsing_function (element, tsch, context,
p, css, isHTML);
/* update index and skip the ";" separator if present */
cssRule = p;
}
}
else
cssRule = SkipProperty (cssRule);
}
/* next property */
cssRule = SkipBlanksAndComments (cssRule);
if (*cssRule == '}')
{
cssRule++;
CSSParseError ("Invalid character", "}");
cssRule = SkipBlanksAndComments (cssRule);
}
if (*cssRule == ',' || *cssRule == ';')
{
cssRule++;
cssRule = SkipBlanksAndComments (cssRule);
}
}
/* restore the display mode */
if (dispMode == DisplayImmediately)
TtaSetDisplayMode (context->doc, dispMode);
}
/*----------------------------------------------------------------------
AddBorderStyleValue
-----------------------------------------------------------------------*/
static void AddBorderStyleValue (char *buffer, int value)
{
switch (value)
{
case STYLE_BORDERNONE:
strcat (buffer, "none");
break;
case STYLE_BORDERHIDDEN:
strcat (buffer, "hidden");
break;
case STYLE_BORDERDOTTED:
strcat (buffer, "dotted");
break;
case STYLE_BORDERDASHED:
strcat (buffer, "dashed");
break;
case STYLE_BORDERSOLID:
strcat (buffer, "solid");
break;
case STYLE_BORDERDOUBLE:
strcat (buffer, "double");
break;
case STYLE_BORDERGROOVE:
strcat (buffer, "groove");
break;
case STYLE_BORDERRIDGE:
strcat (buffer, "ridge");
break;
case STYLE_BORDERINSET:
strcat (buffer, "inset");
break;
case STYLE_BORDEROUTSET:
strcat (buffer, "outset");
break;
}
}
/*----------------------------------------------------------------------
PToCss: translate a PresentationSetting to the
equivalent CSS string, and add it to the buffer given as the
argument. It is used when extracting the CSS string from actual
presentation.
el is the element for which the style rule is generated
All the possible values returned by the presentation drivers are
described in thotlib/include/presentation.h
-----------------------------------------------------------------------*/
void PToCss (PresentationSetting settings, char *buffer, int len, Element el)
{
ElementType elType;
float fval = 0;
unsigned short red, green, blue;
int add_unit = 0;
unsigned int unit, i;
ThotBool real = FALSE;
buffer[0] = EOS;
if (len < 40)
return;
unit = settings->value.typed_data.unit;
if (settings->value.typed_data.real)
{
real = TRUE;
fval = (float) settings->value.typed_data.value;
fval /= 1000;
}
switch (settings->type)
{
case PRVisibility:
break;
case PRHeight:
if (real)
sprintf (buffer, "height: %g", fval);
else
sprintf (buffer, "height: %d", settings->value.typed_data.value);
add_unit = 1;
break;
case PRWidth:
if (real)
sprintf (buffer, "width: %g", fval);
else
sprintf (buffer, "width: %d", settings->value.typed_data.value);
add_unit = 1;
break;
case PRMarginTop:
if (real)
sprintf (buffer, "margin-top: %g", fval);
else
sprintf (buffer, "margin-top: %d",settings->value.typed_data.value);
add_unit = 1;
break;
case PRMarginBottom:
if (real)
sprintf (buffer, "margin-bottom: %g", fval);
else
sprintf (buffer, "margin-bottom: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRMarginLeft:
if (real)
sprintf (buffer, "margin-left: %g", fval);
else
sprintf (buffer, "margin-left: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRMarginRight:
if (real)
sprintf (buffer, "margin-right: %g", fval);
else
sprintf (buffer, "margin-right: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRPaddingTop:
if (real)
sprintf (buffer, "padding-top: %g", fval);
else
sprintf (buffer, "padding-top: %d",settings->value.typed_data.value);
add_unit = 1;
break;
case PRPaddingBottom:
if (real)
sprintf (buffer, "padding-bottom: %g", fval);
else
sprintf (buffer, "padding-bottom: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRPaddingLeft:
if (real)
sprintf (buffer, "padding-left: %g", fval);
else
sprintf (buffer, "padding-left: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRPaddingRight:
if (real)
sprintf (buffer, "padding-right: %g", fval);
else
sprintf (buffer, "padding-right: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRBorderTopWidth:
if (real)
sprintf (buffer, "border-top-width: %g", fval);
else
sprintf (buffer, "border-top-width: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRBorderBottomWidth:
if (real)
sprintf (buffer, "border-bottom-width: %g", fval);
else
sprintf (buffer, "border-bottom-width: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRBorderLeftWidth:
if (real)
sprintf (buffer, "border-left-width: %g", fval);
else
sprintf (buffer, "border-left-width: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRBorderRightWidth:
if (real)
sprintf (buffer, "border-right-width: %g", fval);
else
sprintf (buffer, "border-right-width: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRBorderTopColor:
TtaGiveThotRGB (settings->value.typed_data.value, &red, &green, &blue);
elType = TtaGetElementType(el);
sprintf (buffer, "border-top-color: #%02X%02X%02X", red, green, blue);
break;
case PRBorderRightColor:
TtaGiveThotRGB (settings->value.typed_data.value, &red, &green, &blue);
elType = TtaGetElementType(el);
sprintf (buffer, "border-right-color: #%02X%02X%02X", red, green, blue);
break;
case PRBorderBottomColor:
TtaGiveThotRGB (settings->value.typed_data.value, &red, &green, &blue);
elType = TtaGetElementType(el);
sprintf (buffer, "border-bottom-color: #%02X%02X%02X", red, green, blue);
break;
case PRBorderLeftColor:
TtaGiveThotRGB (settings->value.typed_data.value, &red, &green, &blue);
elType = TtaGetElementType(el);
sprintf (buffer, "border-left-color: #%02X%02X%02X", red, green, blue);
break;
case PRBorderTopStyle:
strcpy (buffer, "border-top-style: ");
AddBorderStyleValue (buffer, settings->value.typed_data.value);
break;
case PRBorderRightStyle:
strcpy (buffer, "border-right-style: ");
AddBorderStyleValue (buffer, settings->value.typed_data.value);
break;
case PRBorderBottomStyle:
strcpy (buffer, "border-bottom-style: ");
AddBorderStyleValue (buffer, settings->value.typed_data.value);
break;
case PRBorderLeftStyle:
strcpy (buffer, "border-left-style: ");
AddBorderStyleValue (buffer, settings->value.typed_data.value);
break;
case PRSize:
if (unit == STYLE_UNIT_REL)
{
if (real)
{
sprintf (buffer, "font-size: %g", fval);
add_unit = 1;
}
else
switch (settings->value.typed_data.value)
{
case 1:
strcpy (buffer, "font-size: xx-small");
break;
case 2:
strcpy (buffer, "font-size: x-small");
break;
case 3:
strcpy (buffer, "font-size: small");
break;
case 4:
strcpy (buffer, "font-size: medium");
break;
case 5:
strcpy (buffer, "font-size: large");
break;
case 6:
strcpy (buffer, "font-size: x-large");
break;
case 7:
case 8:
case 9:
case 10:
case 11:
case 12:
strcpy (buffer, "font-size: xx-large");
break;
}
}
else
{
if (real)
sprintf (buffer, "font-size: %g", fval);
else
sprintf (buffer, "font-size: %d",
settings->value.typed_data.value);
add_unit = 1;
}
break;
case PRStyle:
switch (settings->value.typed_data.value)
{
case STYLE_FONT_ROMAN:
strcpy (buffer, "font-style: normal");
break;
case STYLE_FONT_ITALICS:
strcpy (buffer, "font-style: italic");
break;
case STYLE_FONT_OBLIQUE:
strcpy (buffer, "font-style: oblique");
break;
}
break;
case PRWeight:
switch (settings->value.typed_data.value)
{
case STYLE_WEIGHT_BOLD:
strcpy (buffer, "font-weight: bold");
break;
case STYLE_WEIGHT_NORMAL:
strcpy (buffer, "font-weight: normal");
break;
}
break;
case PRFont:
switch (settings->value.typed_data.value)
{
case STYLE_FONT_HELVETICA:
strcpy (buffer, "font-family: helvetica");
break;
case STYLE_FONT_TIMES:
strcpy (buffer, "font-family: times");
break;
case STYLE_FONT_COURIER:
strcpy (buffer, "font-family: courier");
break;
}
break;
case PRUnderline:
switch (settings->value.typed_data.value)
{
case STYLE_UNDERLINE:
strcpy (buffer, "text-decoration: underline");
break;
case STYLE_OVERLINE:
strcpy (buffer, "text-decoration: overline");
break;
case STYLE_CROSSOUT:
strcpy (buffer, "text-decoration: line-through");
break;
}
break;
case PRThickness:
break;
case PRIndent:
if (real)
sprintf (buffer, "text-indent: %g", fval);
else
sprintf (buffer, "text-indent: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRLineSpacing:
if (real)
sprintf (buffer, "line-height: %g", fval);
else
sprintf (buffer, "line-height: %d",
settings->value.typed_data.value);
add_unit = 1;
break;
case PRDepth:
break;
case PRAdjust:
switch (settings->value.typed_data.value)
{
case STYLE_ADJUSTLEFT:
strcpy (buffer, "text-align: left");
break;
case STYLE_ADJUSTRIGHT:
strcpy (buffer, "text-align: right");
break;
case STYLE_ADJUSTCENTERED:
strcpy (buffer, "text-align: center");
break;
case STYLE_ADJUSTLEFTWITHDOTS:
strcpy (buffer, "text-align: left");
break;
case STYLE_ADJUSTJUSTIFY:
strcpy (buffer, "text-align: justify");
break;
}
break;
case PRDirection:
switch (settings->value.typed_data.value)
{
case STYLE_LEFTTORIGHT:
strcpy (buffer, "direction: ltr");
break;
case STYLE_RIGHTTOLEFT:
strcpy (buffer, "direction: rtl");
break;
}
break;
case PRUnicodeBidi:
switch (settings->value.typed_data.value)
{
case STYLE_BIDINORMAL:
strcpy (buffer, "unicode-bidi: normal");
break;
case STYLE_BIDIEMBED:
strcpy (buffer, "unicode-bidi: embed");
break;
case STYLE_BIDIOVERRIDE:
strcpy (buffer, "unicode-bidi: bidi-override");
break;
}
break;
case PRLineStyle:
break;
case PRLineWeight:
elType = TtaGetElementType(el);
#ifdef _SVG
if (!strcmp(TtaGetSSchemaName (elType.ElSSchema), "SVG"))
#endif /* _SVG */
{
if (real)
sprintf (buffer, "stroke-width: %g", fval);
else
sprintf (buffer, "stroke-width: %d",
settings->value.typed_data.value);
}
add_unit = 1;
break;
case PRFillPattern:
break;
case PRBackground:
TtaGiveThotRGB (settings->value.typed_data.value, &red, &green, &blue);
elType = TtaGetElementType(el);
#ifdef _SVG
if (strcmp(TtaGetSSchemaName (elType.ElSSchema), "SVG") == 0)
sprintf (buffer, "fill: #%02X%02X%02X", red, green, blue);
else
#endif /* _SVG */
sprintf (buffer, "background-color: #%02X%02X%02X", red, green,
blue);
break;
case PRForeground:
TtaGiveThotRGB (settings->value.typed_data.value, &red, &green, &blue);
elType = TtaGetElementType(el);
#ifdef _SVG
if (strcmp(TtaGetSSchemaName (elType.ElSSchema), "SVG") == 0)
sprintf (buffer, "stroke: #%02X%02X%02X", red, green, blue);
else
#endif /* _SVG */
sprintf (buffer, "color: #%02X%02X%02X", red, green, blue);
break;
case PRHyphenate:
break;
case PRVertOverflow:
break;
case PRHorizOverflow:
break;
case PRLine:
if (settings->value.typed_data.value == STYLE_INLINE)
strcpy (buffer, "display: inline");
else if (settings->value.typed_data.value == STYLE_NOTINLINE)
strcpy (buffer, "display: block");
break;
case PRBackgroundPicture:
if (settings->value.pointer != NULL)
sprintf (buffer, "background-image: url(%s)",
(char*)(settings->value.pointer));
else
sprintf (buffer, "background-image: none");
break;
case PRPictureMode:
switch (settings->value.typed_data.value)
{
case STYLE_REALSIZE:
sprintf (buffer, "background-repeat: no-repeat");
break;
case STYLE_REPEAT:
sprintf (buffer, "background-repeat: repeat");
break;
case STYLE_VREPEAT:
sprintf (buffer, "background-repeat: repeat-y");
break;
case STYLE_HREPEAT:
sprintf (buffer, "background-repeat: repeat-x");
break;
}
break;
default:
break;
}
if (add_unit)
{
/* add the unit string to the CSS string */
for (i = 0; i < NB_UNITS; i++)
{
if (CSSUnitNames[i].unit == unit)
{
strcat (buffer, CSSUnitNames[i].sign);
break;
}
}
}
}
/*----------------------------------------------------------------------
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)
{
PresentationContext context;
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 */
context = TtaGetSpecificStyleContext (doc);
if (context == NULL)
return;
context->type = elType.ElTypeNum;
context->cssSpecificity = specificity;
context->destroy = destroy;
/* Call the parser */
ParseCSSRule (el, NULL, (PresentationContext) context, cssRule, NULL, isHTML);
/* free the context */
TtaFreeMemory(context);
}
/*----------------------------------------------------------------------
ParseGenericSelector: Create a generic context for a given
selector string. If the selector is made of multiple comma-
separated selector items, it parses them one at a time and
return the end of the selector string to be handled or NULL
----------------------------------------------------------------------*/
static char *ParseGenericSelector (char *selector, char *cssRule,
GenericContext ctxt, Document doc,
CSSInfoPtr css)
{
ElementType elType;
PSchema tsch;
/*AttributeType attrType;*/
char sel[MAX_ANCESTORS * 50];
char *deb, *cur;
char *structName;
char *names[MAX_ANCESTORS];
char *ids[MAX_ANCESTORS];
char *classes[MAX_ANCESTORS];
char *pseudoclasses[MAX_ANCESTORS];
char *attrs[MAX_ANCESTORS];
char *attrvals[MAX_ANCESTORS];
char *ptr;
int i, j, k, max;
int att, maxAttr;
ThotBool isHTML;
ThotBool level;
sel[0] = EOS;
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;
ctxt->name[i] = 0;
ctxt->names_nb[i] = 0;
ctxt->attrType[i] = 0;
ctxt->attrText[i] = NULL;
}
ctxt->box = 0;
ctxt->type = 0;
/* the specificity of the rule depends on the selector */
ctxt->cssSpecificity = 0;
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 != '#' && !TtaIsBlank (selector))
*cur++ = *selector++;
*cur++ = EOS; /* close the first string in sel[] */
if (deb[0] != EOS)
names[0] = deb;
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 */
if (*selector == ':' || *selector == '.' || *selector == '#')
/* point to the following word in sel[] */
deb = cur;
if (*selector == '.')
{
selector++;
while (*selector != EOS && *selector != ',' &&
*selector != '.' && *selector != ':' &&
!TtaIsBlank (selector))
*cur++ = *selector++;
/* close the word */
*cur++ = EOS;
/* point to the class in sel[] if it's valid name */
if (deb[0] <= 64)
CSSParseError ("Invalid class", deb);
else
classes[0] = deb;
}
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)
CSSParseError ("Invalid pseudoclass", deb);
else
pseudoclasses[0]= deb;
}
else if (*selector == '#')
{
selector++;
while (*selector != EOS && *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)
CSSParseError ("Invalid id", deb);
else
ids[0] = deb;
}
else if (*selector == '[')
{
selector++;
while (*selector != EOS && *selector != ']' &&
*selector != '=' && *selector != '~')
*cur++ = *selector++;
/* close the word */
*cur++ = EOS;
/* point to the attribute in sel[] if it's valid name */
if (deb[0] <= 64)
CSSParseError ("Invalid attribute", deb);
else
attrs[0] = deb;
if (*selector == '=')
{
/* look for a value "xxxx" */
while (*selector != EOS && *selector != ']' && *selector != '"')
*cur++ = *selector++;
/* there is a value */
if (*selector == EOS)
CSSParseError ("Invalid attribute value", deb);
else
{
/* we are now parsing the attribute value */
attrvals[0] = cur;
selector++;
while (*selector != EOS && *selector != '"')
*cur++ = *selector++;
if (*selector != EOS)
selector++;
}
}
*cur++ = EOS;
}
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++;
break;
}
else
{
/* 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];
attrs[i] = attrs[i - 1];
attrvals[i] = attrvals[i - 1];
pseudoclasses[i] = pseudoclasses[i - 1];
}
}
}
/* Now set up the context block */
i = 0;
k = 0;
j = 0;
maxAttr = 0;
/* default schema name */
ptr = "HTML";
while (i <= max)
{
if (names[i])
{
/* get the new element type of this name */
GIType (names[i], &elType, doc);
if (i == 0)
{
/* Store the element type */
#ifdef XML_GENERIC
if (elType.ElSSchema == NULL)
{
/* Search in the list of loaded genereric schemas */
TtaGetXmlElementType (names[i], &elType, NULL, doc);
if (elType.ElSSchema == NULL)
{
char *mappedName, *schemaName;
/* Creation of a new element type in the main schema */
elType.ElSSchema = TtaGetDocumentSSchema (doc);
schemaName = TtaGetSSchemaName(elType.ElSSchema);
if (strcmp (schemaName, "HTML") &&
strcmp (schemaName, "MathML") &&
strcmp (schemaName, "SVG") &&
strcmp (schemaName, "XLink") &&
strcmp (schemaName, "Annot"))
TtaAppendXmlElement (names[i], &elType,
&mappedName, doc);
}
}
#endif /* XML_GENERIC */
ctxt->type = elType.ElTypeNum;
ctxt->name[0] = elType.ElTypeNum;
ctxt->names_nb[0] = 0;
ctxt->schema = elType.ElSSchema;
ptr = TtaGetSSchemaName (elType.ElSSchema);
k++;
}
else if (elType.ElTypeNum != 0)
{
/* look at the current context to see if the type is already
stored */
j = 0;
while (j < k && ctxt->name[j] != elType.ElTypeNum)
j++;
if (j == k)
{
/* add a new entry */
k++;
ctxt->name[j] = elType.ElTypeNum;
if (j != 0)
ctxt->names_nb[j] = 1;
}
else
/* increment the number of ancestor levels */
ctxt->names_nb[j]++;
}
else
{
/* add a new entry */
j = k;
k++;
}
}
/* store attributes information */
if (classes[i])
{
ctxt->attrText[j] = classes[i];
if (!strcmp (ptr, "SVG"))
ctxt->attrType[j] = SVG_ATTR_class;
else if (!strcmp (ptr, "MathML"))
ctxt->attrType[j] = MathML_ATTR_class;
#ifdef XML_GENERIC
else if (!strcmp (ptr, "HTML"))
ctxt->attrType[j] = HTML_ATTR_Class;
else
ctxt->attrType[j] = XML_ATTR_class;
#else /* XML_GENERIC */
else
ctxt->attrType[j] = HTML_ATTR_Class;
#endif /* XML_GENERIC */
/* add a new entry */
maxAttr = i + 1;
}
if (pseudoclasses[i])
{
ctxt->attrText[j] = pseudoclasses[i];
if (!strcmp (ptr, "SVG"))
ctxt->attrType[j] = SVG_ATTR_PseudoClass;
else if (!strcmp (ptr, "MathML"))
ctxt->attrType[j] = MathML_ATTR_PseudoClass;
#ifdef XML_GENERIC
else if (!strcmp (ptr, "HTML"))
ctxt->attrType[j] = HTML_ATTR_PseudoClass;
else
ctxt->attrType[j] = XML_ATTR_PseudoClass;
#else /* XML_GENERIC */
else
ctxt->attrType[j] = HTML_ATTR_PseudoClass;
#endif /* XML_GENERIC */
/* add a new entry */
maxAttr = i + 1;
}
if (ids[i])
{
ctxt->attrText[j] = ids[i];
if (!strcmp (ptr, "SVG"))
ctxt->attrType[j] = SVG_ATTR_id;
else if (!strcmp (ptr, "MathML"))
ctxt->attrType[j] = MathML_ATTR_id;
#ifdef XML_GENERIC
else if (!strcmp (ptr, "HTML"))
ctxt->attrType[j] = HTML_ATTR_ID;
else
ctxt->attrType[j] = XML_ATTR_id;
#else /* XML_GENERIC */
else
ctxt->attrType[j] = HTML_ATTR_ID;
#endif /* XML_GENERIC */
/* add a new entry */
maxAttr = i + 1;
}
if (attrs[i])
{
if (!strcmp (ptr, "SVG"))
MapXMLAttribute (SVG_TYPE, attrs[i], names[i], &level, doc, &att);
else if (!strcmp (ptr, "MathML"))
MapXMLAttribute (MATH_TYPE, attrs[i], names[i], &level, doc, &att);
else
MapXMLAttribute (XHTML_TYPE, attrs[i], names[i], &level, doc, &att);
ctxt->attrText[j] = attrvals[i];
/* we should pass also the attribute schema in the context */
ctxt->attrType[j] = att;
maxAttr = i + 1;
}
i++;
}
/* sort the list of ancestors by name order */
max = k;
i = 1;
while (i < max)
{
for (k = i + 1; k < max; k++)
if (ctxt->name[i] > ctxt->name[k])
{
j = ctxt->name[i];
ctxt->name[i] = ctxt->name[k];
ctxt->name[k] = j;
j = ctxt->names_nb[i];
ctxt->names_nb[i] = ctxt->names_nb[k];
ctxt->names_nb[k] = j;
j = ctxt->attrType[i];
ctxt->attrType[i] = ctxt->attrType[k];
ctxt->attrType[k] = j;
cur = ctxt->attrText[i];
ctxt->attrText[i] = ctxt->attrText[k];
ctxt->attrText[k] = cur;
}
i++;
}
/* Get the schema name of the main element */
if (ctxt->schema != NULL)
{
isHTML = (strcmp (TtaGetSSchemaName (ctxt->schema), "HTML") == 0);
tsch = GetPExtension (doc, ctxt->schema, css);
structName = TtaGetSSchemaName (ctxt->schema);
if (tsch && cssRule)
ParseCSSRule (NULL, tsch, (PresentationContext) ctxt, cssRule, css, isHTML);
}
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:
[
e.g: pinky, awful { color: pink, font-family: helvetica }
----------------------------------------------------------------------*/
static void ParseStyleDeclaration (Element el, char *cssRule, Document doc,
CSSInfoPtr css, ThotBool destroy)
{
GenericContext ctxt;
char *decl_end;
char *sel_end;
char *selector;
char saved1;
char saved2;
/* separate the selectors string */
cssRule = SkipBlanksAndComments (cssRule);
decl_end = cssRule;
while (*decl_end != EOS && *decl_end != '{')
decl_end++;
if (*decl_end == EOS)
{
CSSParseError ("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++;
saved1 = *sel_end;
*sel_end = EOS;
selector = cssRule;
/* now, deal with the content ... */
decl_end++;
cssRule = decl_end;
while (*decl_end != EOS && *decl_end != '}')
decl_end++;
if (*decl_end == EOS)
{
CSSParseError ("Invalid selector", cssRule);
return;
}
saved2 = *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;
while ((selector != NULL) && (*selector != EOS))
selector = ParseGenericSelector (selector, cssRule, ctxt, doc, css);
TtaFreeMemory (ctxt);
/* restore the string to its original form ! */
*sel_end = saved1;
*decl_end = saved2;
}
/************************************************************************
* *
* 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, char *color)
{
char css_command[100];
sprintf (css_command, "background-color: %s", color);
ParseHTMLSpecificStyle (el, css_command, doc, 0, FALSE);
}
/*----------------------------------------------------------------------
HTMLSetBackgroundImage:
repeat = repeat value
image = url of background image
----------------------------------------------------------------------*/
void HTMLSetBackgroundImage (Document doc, Element el, int repeat, char *image)
{
char css_command[400];
/******* check buffer overflow ********/
sprintf (css_command, "background-image: url(%s); background-repeat: ", image);
if (repeat == STYLE_REPEAT)
strcat (css_command, "repeat");
else if (repeat == STYLE_HREPEAT)
strcat (css_command, "repeat-x");
else if (repeat == STYLE_VREPEAT)
strcat (css_command, "repeat-y");
else
strcat (css_command, "no-repeat");
ParseHTMLSpecificStyle (el, css_command, doc, 0, FALSE);
}
/*----------------------------------------------------------------------
HTMLSetForegroundColor:
----------------------------------------------------------------------*/
void HTMLSetForegroundColor (Document doc, Element el, char *color)
{
char css_command[100];
sprintf (css_command, "color: %s", color);
ParseHTMLSpecificStyle (el, css_command, doc, 0, 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, char *color)
{
char css_command[100];
sprintf (css_command, "a:link { color: %s }", color);
ApplyCSSRules (NULL, css_command, doc, FALSE);
}
/*----------------------------------------------------------------------
HTMLSetAactiveColor:
----------------------------------------------------------------------*/
void HTMLSetAactiveColor (Document doc, char *color)
{
char css_command[100];
sprintf (css_command, "a:active { color: %s }", color);
ApplyCSSRules (NULL, css_command, doc, FALSE);
}
/*----------------------------------------------------------------------
HTMLSetAvisitedColor:
----------------------------------------------------------------------*/
void HTMLSetAvisitedColor (Document doc, char *color)
{
char css_command[100];
sprintf (css_command, "a:visited { color: %s }", color);
ApplyCSSRules (NULL, css_command, doc, FALSE);
}
/*----------------------------------------------------------------------
HTMLResetAlinkColor:
----------------------------------------------------------------------*/
void HTMLResetAlinkColor (Document doc)
{
char css_command[100];
sprintf (css_command, "a:link { color: red }");
ApplyCSSRules (NULL, css_command, doc, TRUE);
}
/*----------------------------------------------------------------------
HTMLResetAactiveColor:
----------------------------------------------------------------------*/
void HTMLResetAactiveColor (Document doc)
{
char css_command[100];
sprintf (css_command, "a:active { color: red }");
ApplyCSSRules (NULL, css_command, doc, TRUE);
}
/*----------------------------------------------------------------------
HTMLResetAvisitedColor:
----------------------------------------------------------------------*/
void HTMLResetAvisitedColor (Document doc)
{
char css_command[100];
sprintf (css_command, "a:visited { color: red }");
ApplyCSSRules (NULL, 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;
css = SearchCSS (doc, NULL);
if (css == NULL)
/* create the document css */
css = AddCSS (doc, doc, CSS_DOCUMENT_STYLE, NULL, NULL);
ParseStyleDeclaration (el, cssRule, doc, css, destroy);
}
/*----------------------------------------------------------------------
ReadCSSRules: is the front-end function called by the HTML 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.
Parameter numberOfLinesRead indicates the number of lines already
read in the file.
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,
int numberOfLinesRead, ThotBool withUndo)
{
DisplayMode dispMode;
char c;
char *cssRule, *base;
int index;
int CSSindex;
int CSScomment;
int import;
int openRule;
int newlines;
ThotBool HTMLcomment;
ThotBool toParse, eof, quoted;
ThotBool ignoreMedia, media;
ThotBool noRule, ignoreImport;
CSScomment = MAX_CSS_LENGTH;
HTMLcomment = FALSE;
CSSindex = 0;
toParse = FALSE;
noRule = FALSE;
media = FALSE;
ignoreImport = FALSE;
ignoreMedia = FALSE;
import = MAX_CSS_LENGTH;
eof = FALSE;
openRule = 0;
c = SPACE;
index = 0;
/* 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);
if (css == NULL)
css = AddCSS (docRef, docRef, CSS_DOCUMENT_STYLE, NULL, NULL);
/* register parsed CSS file and the document to which CSS are to be applied */
ParsedDoc = docRef;
if (css->url)
DocURL = css->url;
else
/* the CSS source in within the document itself */
DocURL = DocumentURLs[docRef];
LineNumber = numberOfLinesRead + 1;
NewLineSkipped = 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 == '<')
{
/* we're not within a comment or we're parsing * or / */
switch (c)
{
case '@': /* perhaps an import primitive */
import = CSSindex;
break;
case ';':
if (import != MAX_CSS_LENGTH && !media)
{
if (strncasecmp (&CSSbuffer[import+1], "import", 6))
/* it's not an import */
import = MAX_CSS_LENGTH;
/* save the text */
noRule = TRUE;
}
break;
case '*':
if (CSScomment == MAX_CSS_LENGTH && CSSindex > 0 &&
CSSbuffer[CSSindex - 1] == '/')
/* start a comment */
CSScomment = CSSindex - 1;
break;
case '/':
if (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 (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 (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 (CSSindex > 0 && CSSbuffer[CSSindex - 1] == '-' &&
HTMLcomment)
/* CSS within an HTML comment */
noRule = TRUE;
break;
case '>':
if (HTMLcomment)
noRule = TRUE;
break;
case ' ':
if (import != MAX_CSS_LENGTH && openRule == 0)
media = !strncmp (&CSSbuffer[import+1], "media", 5);
break;
case '{':
openRule++;
if (import != MAX_CSS_LENGTH && 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)
ignoreMedia = TRUE;
noRule = TRUE;
}
break;
case '}':
openRule--;
if (import != MAX_CSS_LENGTH && openRule == 0)
{
import = MAX_CSS_LENGTH;
noRule = TRUE;
ignoreMedia = FALSE;
media = FALSE;
}
else
toParse = TRUE;
break;
default:
if (c == EOL)
newlines++;
break;
}
}
else if (c == EOL)
LineNumber++;
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 && !ignoreMedia)
{
/* future import rules must be ignored */
ignoreImport = TRUE;
ParseStyleDeclaration (NULL, CSSbuffer, docRef, css, FALSE);
LineNumber += newlines;
newlines = 0;
NewLineSkipped = 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)
cssRule--;
*cssRule = EOS;
if (!ignoreImport)
LoadStyleSheet (base, docRef, NULL, css,
css->media[docRef],
css->category == CSS_USER_STYLE);
}
}
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 = EOS;
if (!ignoreImport)
LoadStyleSheet (base, docRef, NULL, css,
css->media[docRef],
css->category == CSS_USER_STYLE);
}
/* restore the number of lines */
LineNumber = newlines;
newlines = 0;
import = MAX_CSS_LENGTH;
}
}
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);
}
Webmaster
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to styleparser.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Public] / Amaya / amaya