/* * * (c) COPYRIGHT MIT and INRIA, 1996. * 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 "undo.h" #include "fetchHTMLname.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 "html2thot_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. */ #ifdef __STDC__ typedef STRING (*PropertyParser) (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML); #else typedef STRING (*PropertyParser) (); #endif /* Description of the set of CSS properties supported */ typedef struct CSSProperty { STRING name; PropertyParser parsing_function; } CSSProperty; #include "HTMLstyleColor.h" struct unit_def { STRING sign; unsigned int unit; }; static struct unit_def CSSUnitNames[] = { {TEXT ("pt"), STYLE_UNIT_PT}, {TEXT ("pc"), STYLE_UNIT_PC}, {TEXT ("in"), STYLE_UNIT_IN}, {TEXT ("cm"), STYLE_UNIT_CM}, {TEXT ("mm"), STYLE_UNIT_MM}, {TEXT ("em"), STYLE_UNIT_EM}, {TEXT ("px"), STYLE_UNIT_PX}, {TEXT ("ex"), STYLE_UNIT_XHEIGHT}, {TEXT ("%"), STYLE_UNIT_PERCENT} }; #define NB_UNITS (sizeof(CSSUnitNames) / sizeof(struct unit_def)) /*---------------------------------------------------------------------- ----------------------------------------------------------------------*/ #ifdef __STDC__ static unsigned int hexa_val (CHAR_T c) #else static unsigned int hexa_val (c) CHAR_T c; #endif { if (c >= '0' && c <= '9') return (c - '0'); if (c >= 'a' && c <= 'f') return (c - 'a' + 10); if (c >= 'A' && c <= 'F') return (c - 'A' + 10); return (0); } /*---------------------------------------------------------------------- SkipWord: ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING SkipWord (STRING ptr) #else static STRING SkipWord (ptr) STRING ptr; #endif { while (isalnum(*ptr) || *ptr == '-' || *ptr == '%') ptr++; return (ptr); } /*---------------------------------------------------------------------- SkipBlanksAndComments: ----------------------------------------------------------------------*/ #ifdef __STDC__ STRING SkipBlanksAndComments (STRING ptr) #else STRING SkipBlanksAndComments (ptr) STRING ptr; #endif { ptr = TtaSkipBlanks (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]; ptr = TtaSkipBlanks (ptr); } return (ptr); } /*---------------------------------------------------------------------- SkipQuotedString: ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING SkipQuotedString (STRING ptr, CHAR_T quote) #else static STRING SkipQuotedString (ptr, quote) STRING ptr; CHAR_T quote; #endif { 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); } /*---------------------------------------------------------------------- SkipProperty: ----------------------------------------------------------------------*/ #ifdef __STDC__ STRING SkipProperty (STRING ptr) #else STRING SkipProperty (ptr) STRING ptr; #endif { while (*ptr != EOS && *ptr != ';' && *ptr != '}') ptr++; return (ptr); } /*---------------------------------------------------------------------- ParseCSSUnit : parse a CSS Unit substring and returns the corresponding value and its unit. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSUnit (STRING cssRule, PresentationValue *pval) #else static STRING ParseCSSUnit (cssRule, pval) STRING cssRule; PresentationValue *pval; #endif { int val = 0; int minus = 0; int valid = 0; int f = 0; unsigned int uni; 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) { cssRule = SkipWord (cssRule); pval->typed_data.unit = STYLE_UNIT_INVALID; pval->typed_data.value = 0; } else { cssRule = SkipBlanksAndComments (cssRule); for (uni = 0; uni < NB_UNITS; uni++) { if (!ustrncasecmp (CSSUnitNames[uni].sign, cssRule, ustrlen (CSSUnitNames[uni].sign))) { pval->typed_data.unit = CSSUnitNames[uni].unit; 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 + ustrlen (CSSUnitNames[uni].sign)); } } /* not in the list of predefined units */ pval->typed_data.unit = STYLE_UNIT_REL; 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); } /*---------------------------------------------------------------------- ParseBorderValue ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseBorderValue (STRING cssRule, PresentationValue *border) #else static STRING ParseBorderValue (cssRule, border) STRING cssRule; PresentationValue *border #endif { /* first parse the attribute string */ border->typed_data.value = 0; border->typed_data.unit = STYLE_UNIT_PX; border->typed_data.real = FALSE; if (!ustrncasecmp (cssRule, TEXT("thin"), 4)) { border->typed_data.value = 1; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("medium"), 6)) { border->typed_data.value = 3; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("thick"), 5)) { border->typed_data.value = 5; cssRule = SkipWord (cssRule); } else if (isdigit (*cssRule)) cssRule = ParseCSSUnit (cssRule, border); return (cssRule); } /*---------------------------------------------------------------------- ParseBorderStyle ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseBorderStyle (STRING cssRule, PresentationValue *border) #else static STRING ParseBorderStyle (cssRule, border) STRING cssRule; PresentationValue *border #endif { /* first parse the attribute string */ border->typed_data.value = 0; border->typed_data.unit = STYLE_UNIT_PX; border->typed_data.real = FALSE; if (!ustrncasecmp (cssRule, TEXT("none"), 4)) border->typed_data.value = STYLE_BORDERNONE; else if (!ustrncasecmp (cssRule, TEXT("hidden"), 6)) border->typed_data.value = STYLE_BORDERHIDDEN; else if (!ustrncasecmp (cssRule, TEXT("dotted"), 6)) border->typed_data.value = STYLE_BORDERDOTTED; else if (!ustrncasecmp (cssRule, TEXT("dashed"), 6)) border->typed_data.value = STYLE_BORDERDASHED; else if (!ustrncasecmp (cssRule, TEXT("solid"), 5)) border->typed_data.value = STYLE_BORDERSOLID; else if (!ustrncasecmp (cssRule, TEXT("double"), 6)) border->typed_data.value = STYLE_BORDERDOUBLE; else if (!ustrncasecmp (cssRule, TEXT("groove"), 6)) border->typed_data.value = STYLE_BORDERGROOVE; else if (!ustrncasecmp (cssRule, TEXT("ridge"), 5)) border->typed_data.value = STYLE_BORDERRIDGE; else if (!ustrncasecmp (cssRule, TEXT("inset"), 5)) border->typed_data.value = STYLE_BORDERINSET; else if (!ustrncasecmp (cssRule, TEXT("outset"), 6)) border->typed_data.value = STYLE_BORDEROUTSET; else /* invalid style */ 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 ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSColor (STRING cssRule, PresentationValue * val) #else static STRING ParseCSSColor (cssRule, val) STRING cssRule; PresentationValue *val; #endif { CHAR_T colname[100]; unsigned short redval = (unsigned short) -1; unsigned short greenval = 0; /* composant of each RGB */ unsigned short blueval = 0; /* default to red if unknown ! */ unsigned int i, len; int r, g, b; int best = 0; /* best color in list found */ ThotBool failed; cssRule = SkipBlanksAndComments (cssRule); val->typed_data.unit = STYLE_UNIT_INVALID; val->typed_data.real = FALSE; val->typed_data.value = 0; failed = TRUE; /* * first parse the attribute string * NOTE : this can't lookup for color name in * cause we try first to lokup color name from digits * [0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f] */ if ((*cssRule == '#') || (isxdigit (cssRule[0]) && isxdigit (cssRule[1]) && isxdigit (cssRule[2]))) { if (*cssRule == '#') cssRule++; failed = FALSE; /* we expect an hexa encoding like F00 or FF0000 */ if ((!isxdigit (cssRule[0])) || (!isxdigit (cssRule[1])) || (!isxdigit (cssRule[2]))) { fprintf (stderr, "Invalid color encoding %s\n", cssRule - 1); failed = TRUE; } else if (!isxdigit (cssRule[3])) { /* encoded as on 3 digits #F0F */ redval = hexa_val (cssRule[0]) * 16 + hexa_val (cssRule[0]); greenval = hexa_val (cssRule[1]) * 16 + hexa_val (cssRule[1]); blueval = hexa_val (cssRule[2]) * 16 + hexa_val (cssRule[2]); cssRule = &cssRule[3]; } else if ((!isxdigit (cssRule[4])) || (!isxdigit (cssRule[5]))) fprintf (stderr, "Invalid color encoding %s\n", cssRule - 1); else { /* encoded as on 3 digits #FF00FF */ redval = hexa_val (cssRule[0]) * 16 + hexa_val (cssRule[1]); greenval = hexa_val (cssRule[2]) * 16 + hexa_val (cssRule[3]); blueval = hexa_val (cssRule[4]) * 16 + hexa_val (cssRule[5]); cssRule = &cssRule[6]; } } else if (!ustrncasecmp (cssRule, TEXT("rgb"), 3)) { cssRule = &cssRule[3]; cssRule = SkipBlanksAndComments (cssRule); if (*cssRule == '(') { cssRule++; cssRule = SkipBlanksAndComments (cssRule); failed = FALSE; if (*cssRule == '%') { /* encoded as rgb(%red,%green,&blue) */ usscanf (cssRule, TEXT("%%%d"), &r); while (*cssRule != EOS && *cssRule != TEXT(',')) cssRule++; cssRule++; usscanf (cssRule, TEXT("%%%d"), &g); while (*cssRule != EOS && *cssRule != TEXT(',')) cssRule++; cssRule++; usscanf (cssRule, TEXT("%%%d"), &b); redval = (unsigned short)(r * 255 / 100); greenval = (unsigned short)(g * 255 / 100); blueval = (unsigned short)(b * 255 / 100); } else { /* encoded as rgb(red,green,blue) */ usscanf (cssRule, TEXT("%d"), &r); while (*cssRule != EOS && *cssRule != TEXT(',')) cssRule++; cssRule++; usscanf (cssRule, TEXT("%d"), &g); while (*cssRule != EOS && *cssRule != TEXT(',')) cssRule++; cssRule++; usscanf (cssRule, TEXT("%d"), &b); redval = (unsigned short)r; greenval = (unsigned short)g; blueval = (unsigned short)b; } /* search the rgb end */ while (*cssRule != EOS && *cssRule != ')') cssRule++; cssRule++; } else cssRule = SkipProperty (cssRule); } else if (isalpha (*cssRule)) { /* we expect a color name like "red", store it in colname */ len = sizeof (colname) - 1; for (i = 0; i < len && cssRule[i] != EOS; i++) { if (!isalnum (cssRule[i]) && cssRule[i] != EOS) { cssRule += i; break; } colname[i] = cssRule[i]; } colname[i] = EOS; /* Lookup the color name in our own color name database */ for (i = 0; i < NBCOLORNAME; i++) if (!ustrcasecmp (ColornameTable[i].name, colname)) { redval = ColornameTable[i].red; greenval = ColornameTable[i].green; blueval = ColornameTable[i].blue; failed = FALSE; i = NBCOLORNAME; } } if (failed) { 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; } val->typed_data.real = FALSE; return (cssRule); } /*---------------------------------------------------------------------- ParseCSSBorderTopWidth : parse a CSS BorderTopWidth attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderTopWidth (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderTopWidth (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { PresentationValue border; cssRule = SkipBlanksAndComments (cssRule); cssRule = ParseBorderValue (cssRule, &border); if (border.typed_data.unit != STYLE_UNIT_INVALID) TtaSetStylePresentation (PRBorderTopWidth, element, tsch, context, border); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSBorderBottomWidth : parse a CSS BorderBottomWidth attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderBottomWidth (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderBottomWidth (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSBorderLeftWidth : parse a CSS BorderLeftWidth attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderLeftWidth (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderLeftWidth (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSBorderRightWidth : parse a CSS BorderRightWidth attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderRightWidth (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderRightWidth (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSBorderWidth : parse a CSS BorderWidth attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderWidth (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderWidth (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING ptrT, ptrR, ptrB, ptrL; ptrT = SkipBlanksAndComments (cssRule); /* First parse Border-Top */ ptrR = ParseCSSBorderTopWidth (element, tsch, context, ptrT, css, isHTML); ptrR = SkipBlanksAndComments (ptrR); if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',') { cssRule = ptrR; /* apply the Border-Top to all */ ptrR = ParseCSSBorderRightWidth (element, tsch, context, ptrT, css, isHTML); ptrR = ParseCSSBorderBottomWidth (element, tsch, context, ptrT, css, isHTML); 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 == ',') { cssRule = ptrB; /* apply the Border-Top to Border-Bottom */ ptrB = ParseCSSBorderBottomWidth (element, tsch, context, ptrT, css, isHTML); /* 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderColorTop (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderColorTop (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderColorLeft (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderColorLeft (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderColorBottom (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderColorBottom (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderColorRight (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderColorRight (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderColor (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderColor (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING ptrT, ptrR, ptrB, ptrL; ptrT = SkipBlanksAndComments (cssRule); /* First parse Border-Top */ ptrR = ParseCSSBorderColorTop (element, tsch, context, ptrT, css, isHTML); ptrR = SkipBlanksAndComments (ptrR); if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',') { cssRule = ptrR; /* apply the Border-Top to all */ ptrR = ParseCSSBorderColorRight (element, tsch, context, ptrT, css, isHTML); ptrR = ParseCSSBorderColorBottom (element, tsch, context, ptrT, css, isHTML); 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 == ',') { cssRule = ptrB; /* apply the Border-Top to Border-Bottom */ ptrB = ParseCSSBorderColorBottom (element, tsch, context, ptrT, css, isHTML); /* apply the Border-Right to Border-Left */ ptrB = ParseCSSBorderColorLeft (element, tsch, context, ptrR, css, isHTML); } else { /* parse Border-Bottom */ ptrL = ParseCSSBorderColorBottom (element, tsch, context, ptrB, css, isHTML); 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderStyleTop (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderStyleTop (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderStyleLeft (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderStyleLeft (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderStyleBottom (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderStyleBottom (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderStyleRight (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderStyleRight (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderStyle (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderStyle (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING ptrT, ptrR, ptrB, ptrL; ptrT = SkipBlanksAndComments (cssRule); /* First parse Border-Top */ ptrR = ParseCSSBorderStyleTop (element, tsch, context, ptrT, css, isHTML); ptrR = SkipBlanksAndComments (ptrR); if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',') { cssRule = ptrR; /* apply the Border-Top to all */ ptrR = ParseCSSBorderStyleRight (element, tsch, context, ptrT, css, isHTML); ptrR = ParseCSSBorderStyleBottom (element, tsch, context, ptrT, css, isHTML); 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 == ',') { cssRule = ptrB; /* apply the Border-Top to Border-Bottom */ ptrB = ParseCSSBorderStyleBottom (element, tsch, context, ptrT, css, isHTML); /* 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderTop (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderTop (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING 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 = SkipProperty (cssRule); } return (cssRule); } /*---------------------------------------------------------------------- ParseCSSBorderLeft : parse a CSS BorderLeft attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderLeft (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderLeft (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING 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 = SkipProperty (cssRule); } return (cssRule); } /*---------------------------------------------------------------------- ParseCSSBorderBottom : parse a CSS BorderBottom attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderBottom (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderBottom (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING 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 = SkipProperty (cssRule); } return (cssRule); } /*---------------------------------------------------------------------- ParseCSSBorderRight : parse a CSS BorderRight attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorderRight (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorderRight (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING 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 = SkipProperty (cssRule); } return (cssRule); } /*---------------------------------------------------------------------- ParseCSSBorder : parse a CSS border attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBorder (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBorder (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING ptrT, ptrR, ptrB, ptrL; ptrT = SkipBlanksAndComments (cssRule); /* First parse Border-Top */ ptrR = ParseCSSBorderTop (element, tsch, context, ptrT, css, isHTML); ptrR = SkipBlanksAndComments (ptrR); if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',') { cssRule = ptrR; /* apply the Border-Top to all */ ptrR = ParseCSSBorderRight (element, tsch, context, ptrT, css, isHTML); ptrR = ParseCSSBorderBottom (element, tsch, context, ptrT, css, isHTML); ptrR = ParseCSSBorderLeft (element, tsch, context, ptrT, css, isHTML); } return (cssRule); } /*---------------------------------------------------------------------- ParseCSSClear : parse a CSS clear attribute string ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSClear (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSClear (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSDisplay : parse a CSS display attribute string ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSDisplay (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSDisplay (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { PresentationValue pval; pval.typed_data.unit = STYLE_UNIT_REL; pval.typed_data.real = FALSE; cssRule = SkipBlanksAndComments (cssRule); if (!ustrncasecmp (cssRule, TEXT("block"), 5)) { pval.typed_data.value = STYLE_NOTINLINE; TtaSetStylePresentation (PRLine, element, tsch, context, pval); cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("inline"), 6)) { pval.typed_data.value = STYLE_INLINE; TtaSetStylePresentation (PRLine, element, tsch, context, pval); cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("none"), 4)) { pval.typed_data.value = STYLE_HIDE; TtaSetStylePresentation (PRVisibility, element, tsch, context, pval); cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("list-item"), 9)) cssRule = SkipProperty (cssRule); else fprintf (stderr, "invalid display value %s\n", cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSFloat : parse a CSS float attribute string ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSFloat (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSFloat (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSLetterSpacing : parse a CSS letter-spacing attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSLetterSpacing (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSLetterSpacing (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSListStyleType : parse a CSS list-style-type attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSListStyleType (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSListStyleType (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSListStyleImage : parse a CSS list-style-image attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSListStyleImage (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSListStyleImage (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSListStylePosition : parse a CSS list-style-position attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSListStylePosition (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSListStylePosition (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSListStyle : parse a CSS list-style attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSListStyle (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSListStyle (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSTextAlign : parse a CSS text-align attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSTextAlign (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSTextAlign (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { PresentationValue align; PresentationValue justify; align.typed_data.value = 0; align.typed_data.unit = STYLE_UNIT_REL; align.typed_data.real = FALSE; justify.typed_data.value = 0; justify.typed_data.unit = STYLE_UNIT_REL; justify.typed_data.real = FALSE; cssRule = SkipBlanksAndComments (cssRule); if (!ustrncasecmp (cssRule, TEXT("left"), 4)) { align.typed_data.value = AdjustLeft; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("right"), 5)) { align.typed_data.value = AdjustRight; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("center"), 6)) { align.typed_data.value = Centered; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("justify"), 7)) { justify.typed_data.value = Justified; cssRule = SkipWord (cssRule); } else { fprintf (stderr, "invalid align value\n"); return (cssRule); } /* * install the new presentation. */ if (align.typed_data.value) { TtaSetStylePresentation (PRAdjust, element, tsch, context, align); } if (justify.typed_data.value) { TtaSetStylePresentation (PRJustify, element, tsch, context, justify); TtaSetStylePresentation (PRHyphenate, element, tsch, context, justify); } return (cssRule); } /*---------------------------------------------------------------------- ParseCSSTextIndent : parse a CSS text-indent attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSTextIndent (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSTextIndent (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSTextTransform (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSTextTransform (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSVerticalAlign : parse a CSS vertical-align attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSVerticalAlign (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSVerticalAlign (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSWhiteSpace : parse a CSS white-space attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSWhiteSpace (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSWhiteSpace (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipBlanksAndComments (cssRule); if (!ustrncasecmp (cssRule, TEXT("normal"), 6)) cssRule = SkipWord (cssRule); else if (!ustrncasecmp (cssRule, TEXT("pre"), 3)) cssRule = SkipWord (cssRule); else return (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSWordSpacing : parse a CSS word-spacing attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSWordSpacing (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSWordSpacing (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSLineSpacing : parse a CSS font leading string we expect the input string describing the attribute to be value% or value ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSLineSpacing (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSLineSpacing (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { PresentationValue lead; cssRule = ParseCSSUnit (cssRule, &lead); if (lead.typed_data.unit == STYLE_UNIT_INVALID) { /* invalid line spacing */ return (cssRule); } /* 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 ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSFontSize (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSFontSize (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { PresentationValue pval; STRING ptr = NULL; ThotBool real; pval.typed_data.real = FALSE; cssRule = SkipBlanksAndComments (cssRule); if (!ustrncasecmp (cssRule, TEXT("larger"), 6)) { pval.typed_data.unit = STYLE_UNIT_PERCENT; pval.typed_data.value = 130; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("smaller"), 7)) { pval.typed_data.unit = STYLE_UNIT_PERCENT; pval.typed_data.value = 80; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("xx-small"), 8)) { pval.typed_data.unit = STYLE_UNIT_REL; pval.typed_data.value = 1; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("x-small"), 7)) { pval.typed_data.unit = STYLE_UNIT_REL; pval.typed_data.value = 2; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("small"), 5)) { pval.typed_data.unit = STYLE_UNIT_REL; pval.typed_data.value = 3; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("medium"), 6)) { pval.typed_data.unit = STYLE_UNIT_REL; pval.typed_data.value = 4; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("large"), 5)) { pval.typed_data.unit = STYLE_UNIT_REL; pval.typed_data.value = 5; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("x-large"), 7)) { pval.typed_data.unit = STYLE_UNIT_REL; pval.typed_data.value = 6; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("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 = ustrchr (cssRule, TEXT('/')); 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 ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSFontFamily (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSFontFamily (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { PresentationValue font; CHAR_T 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 = '\0'; if (!ustrncasecmp (cssRule, TEXT("times"), 5)) font.typed_data.value = STYLE_FONT_TIMES; else if (!ustrncasecmp (cssRule, TEXT("serif"), 5)) font.typed_data.value = STYLE_FONT_TIMES; else if (!ustrncasecmp (cssRule, TEXT("helvetica"), 9) || !ustrncasecmp (cssRule, TEXT("verdana"), 7)) font.typed_data.value = STYLE_FONT_HELVETICA; else if (!ustrncasecmp (cssRule, TEXT("sans-serif"), 10)) font.typed_data.value = STYLE_FONT_HELVETICA; else if (!ustrncasecmp (cssRule, TEXT("courier"), 7)) font.typed_data.value = STYLE_FONT_COURIER; else if (!ustrncasecmp (cssRule, TEXT("monospace"), 9)) font.typed_data.value = STYLE_FONT_COURIER; else /* unknown font name. Skip it */ { if (quoteChar) 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 = SkipProperty (cssRule); /* 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSFontWeight (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSFontWeight (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { PresentationValue weight; weight.typed_data.value = 0; weight.typed_data.unit = STYLE_UNIT_REL; weight.typed_data.real = FALSE; cssRule = SkipBlanksAndComments (cssRule); if (!ustrncasecmp (cssRule, TEXT("100"), 3) && !isalpha (cssRule[3])) { weight.typed_data.value = -3; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("200"), 3) && !isalpha (cssRule[3])) { weight.typed_data.value = -2; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("300"), 3) && !isalpha (cssRule[3])) { weight.typed_data.value = -1; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("normal"), 6) || (!ustrncasecmp (cssRule, TEXT("400"), 3) && !isalpha (cssRule[3]))) { weight.typed_data.value = 0; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("500"), 3) && !isalpha (cssRule[3])) { weight.typed_data.value = +1; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("600"), 3) && !isalpha (cssRule[3])) { weight.typed_data.value = +2; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("bold"), 4) || (!ustrncasecmp (cssRule, TEXT("700"), 3) && !isalpha (cssRule[3]))) { weight.typed_data.value = +3; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("800"), 3) && !isalpha (cssRule[3])) { weight.typed_data.value = +4; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("900"), 3) && !isalpha (cssRule[3])) { weight.typed_data.value = +5; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("inherit"), 7) || !ustrncasecmp (cssRule, TEXT("bolder"), 6) || !ustrncasecmp (cssRule, TEXT("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 ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSFontVariant (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSFontVariant (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { PresentationValue style; style.typed_data.value = 0; style.typed_data.unit = STYLE_UNIT_REL; style.typed_data.real = FALSE; cssRule = SkipBlanksAndComments (cssRule); if (!ustrncasecmp (cssRule, TEXT("small-caps"), 10)) { /* Not supported yet */ cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("normal"), 6)) { /* Not supported yet */ cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("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 ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSFontStyle (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSFontStyle (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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 (!ustrncasecmp (cssRule, TEXT("italic"), 6)) { style.typed_data.value = STYLE_FONT_ITALICS; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("oblique"), 7)) { style.typed_data.value = STYLE_FONT_OBLIQUE; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("normal"), 6)) { style.typed_data.value = STYLE_FONT_ROMAN; cssRule = SkipWord (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 !!!!!! ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSFont (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSFont (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING ptr; cssRule = SkipBlanksAndComments (cssRule); if (!ustrncasecmp (cssRule, TEXT("caption"), 7)) ; else if (!ustrncasecmp (cssRule, TEXT("icon"), 4)) ; else if (!ustrncasecmp (cssRule, TEXT("menu"), 4)) ; else if (!ustrncasecmp (cssRule, TEXT("message-box"), 11)) ; else if (!ustrncasecmp (cssRule, TEXT("small-caption"), 13)) ; else if (!ustrncasecmp (cssRule, TEXT("status-bar"), 10)) ; else { ptr = cssRule; cssRule = ParseCSSFontStyle (element, tsch, context, cssRule, css, isHTML); if (ptr == cssRule) cssRule = ParseCSSFontVariant (element, tsch, context, cssRule, css, isHTML); if (ptr == cssRule) cssRule = ParseCSSFontWeight (element, tsch, context, cssRule, css, isHTML); cssRule = ParseCSSFontSize (element, tsch, context, cssRule, css, isHTML); if (*cssRule == '/') { cssRule++; SkipBlanksAndComments (cssRule); cssRule = SkipWord (cssRule); } cssRule = ParseCSSFontFamily (element, tsch, context, cssRule, css, isHTML); cssRule = SkipBlanksAndComments (cssRule); while (*cssRule != ';' && *cssRule != EOS) { /* now skip remainding info */ cssRule++; } } return (cssRule); } /*---------------------------------------------------------------------- ParseCSSTextDecoration : parse a CSS text decor string we expect the input string describing the attribute to be underline, overline, line-through, box, shadowbox, box3d, cartouche, blink or none ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSTextDecoration (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSTextDecoration (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { PresentationValue decor; decor.typed_data.value = 0; decor.typed_data.unit = STYLE_UNIT_REL; decor.typed_data.real = FALSE; cssRule = SkipBlanksAndComments (cssRule); if (!ustrncasecmp (cssRule, TEXT("underline"), ustrlen (TEXT("underline")))) { decor.typed_data.value = Underline; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("overline"), ustrlen (TEXT("overline")))) { decor.typed_data.value = Overline; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("line-through"), ustrlen (TEXT("line-through")))) { decor.typed_data.value = CrossOut; cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("box"), ustrlen (TEXT("box")))) { /* the box text-decoration attribute is not yet supported */ cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("boxshadow"), ustrlen (TEXT("boxshadow")))) { /* the boxshadow text-decoration attribute is not yet supported */ cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("box3d"), ustrlen (TEXT("box3d")))) { /* the box3d text-decoration attribute is not yet supported */ cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("cartouche"), ustrlen (TEXT("cartouche")))) { /*the cartouche text-decoration attribute is not yet supported */ cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("blink"), ustrlen (TEXT("blink")))) { /*the blink text-decoration attribute will not be supported */ cssRule = SkipWord (cssRule); } else if (!ustrncasecmp (cssRule, TEXT("none"), ustrlen (TEXT("none")))) { decor.typed_data.value = NoUnderline; cssRule = SkipWord (cssRule); } else { fprintf (stderr, "invalid text decoration\n"); 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 ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSHeight (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSHeight (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipBlanksAndComments (cssRule); /* first parse the attribute string */ if (!ustrcasecmp (cssRule, TEXT("auto"))) { cssRule = SkipWord (cssRule); /* ParseCSSHeight : auto */ return (cssRule); } else cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSWidth : parse a CSS width attribute ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSWidth (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSWidth (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { cssRule = SkipBlanksAndComments (cssRule); /* first parse the attribute string */ if (!ustrcasecmp (cssRule, TEXT("auto"))) { cssRule = SkipWord (cssRule); return (cssRule); } else cssRule = SkipProperty (cssRule); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSMarginTop : parse a CSS margin-top attribute ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSMarginTop (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSMarginTop (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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); if (margin.typed_data.value < 0) TtaSetStylePresentation (PRVertOverflow, element, tsch, context, margin); } return (cssRule); } /*---------------------------------------------------------------------- ParseCSSMarginBottom : parse a CSS margin-bottom attribute ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSMarginBottom (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSMarginBottom (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { PresentationValue margin; cssRule = SkipBlanksAndComments (cssRule); /* first parse the attribute string */ cssRule = ParseCSSUnit (cssRule, &margin); margin.typed_data.value = - margin.typed_data.value; if (margin.typed_data.unit != STYLE_UNIT_INVALID) TtaSetStylePresentation (PRMarginBottom, element, tsch, context, margin); return (cssRule); } /*---------------------------------------------------------------------- ParseCSSMarginLeft : parse a CSS margin-left attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSMarginLeft (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSMarginLeft (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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); if (margin.typed_data.value < 0) TtaSetStylePresentation (PRHorizOverflow, element, tsch, context, margin); } return (cssRule); } /*---------------------------------------------------------------------- ParseCSSMarginRight : parse a CSS margin-right attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSMarginRight (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSMarginRight (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSMargin (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSMargin (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING ptrT, ptrR, ptrB, ptrL; ptrT = SkipBlanksAndComments (cssRule); /* First parse Margin-Top */ ptrR = ParseCSSMarginTop (element, tsch, context, ptrT, css, isHTML); ptrR = SkipBlanksAndComments (ptrR); if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',') { cssRule = ptrR; /* apply the Margin-Top to all */ ptrR = ParseCSSMarginRight (element, tsch, context, ptrT, css, isHTML); ptrR = ParseCSSMarginBottom (element, tsch, context, ptrT, css, isHTML); 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 == ',') { cssRule = ptrB; /* apply the Margin-Top to Margin-Bottom */ ptrB = ParseCSSMarginBottom (element, tsch, context, ptrT, css, isHTML); /* 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSPaddingTop (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSPaddingTop (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSPaddingBottom (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSPaddingBottom (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSPaddingLeft (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSPaddingLeft (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSPaddingRight (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSPaddingRight (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSPadding (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSPadding (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING ptrT, ptrR, ptrB, ptrL; ptrT = SkipBlanksAndComments (cssRule); /* First parse Padding-Top */ ptrR = ParseCSSPaddingTop (element, tsch, context, ptrT, css, isHTML); ptrR = SkipBlanksAndComments (ptrR); if (*ptrR == ';' || *ptrR == EOS || *ptrR == ',') { cssRule = ptrR; /* apply the Padding-Top to all */ ptrR = ParseCSSPaddingRight (element, tsch, context, ptrT, css, isHTML); ptrR = ParseCSSPaddingBottom (element, tsch, context, ptrT, css, isHTML); 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 == ',') { cssRule = ptrB; /* apply the Padding-Top to Padding-Bottom */ ptrB = ParseCSSPaddingBottom (element, tsch, context, ptrT, css, isHTML); /* 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 ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSForeground (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSForeground (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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 ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBackgroundColor (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBackgroundColor (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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_HTML; } } best.typed_data.unit = STYLE_UNIT_INVALID; best.typed_data.real = FALSE; if (!ustrncasecmp (cssRule, TEXT("transparent"), ustrlen (TEXT("transparent")))) { best.typed_data.value = STYLE_PATTERN_NONE; best.typed_data.unit = STYLE_UNIT_REL; TtaSetStylePresentation (PRFillPattern, element, tsch, context, best); } 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); } } cssRule = SkipWord (cssRule); /* restore the refered element */ if (moved && !element) context->type = savedtype; return (cssRule); } /*---------------------------------------------------------------------- ParseCSSBackgroundImageCallback : Callback called asynchronously by FetchImage when a background image has been fetched. ----------------------------------------------------------------------*/ #ifdef __STDC__ void ParseCSSBackgroundImageCallback (Document doc, Element element, STRING file, void *extra) #else void ParseCSSBackgroundImageCallback (doc, element, file, extra) Document doc; Element element; STRING file; void *extra; #endif { DisplayMode dispMode; BackgroundImageCallbackPtr callblock = (BackgroundImageCallbackPtr) extra; Element el; PSchema tsch; PresentationContext context; PresentationValue image; PresentationValue repeat; PresentationValue value; 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); /* If there is no default repeat mode, enforce a V-Repeat */ if (TtaGetStylePresentation (PRPictureMode, el, tsch, context, &repeat) < 0) { repeat.typed_data.value = STYLE_REPEAT; repeat.typed_data.unit = STYLE_UNIT_REL; repeat.typed_data.real = FALSE; TtaSetStylePresentation (PRPictureMode, el, tsch, context, repeat); } /* If there is no default repeat mode, enforce a V-Repeat */ 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ STRING GetCSSBackgroundURL (STRING styleString) #else STRING GetCSSBackgroundURL (styleString) STRING styleString; #endif { STRING b, e, ptr; int len; ptr = NULL; b = ustrstr (styleString, TEXT("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 = (STRING) TtaGetMemory (len+1); ustrncpy (ptr, b, len); ptr[len] = EOS; } } } return (ptr); } /*---------------------------------------------------------------------- ParseCSSBackgroundImage : parse a CSS BackgroundImage attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBackgroundImage (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBackgroundImage (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { Element el; GenericContext gblock; PresentationContextBlock *sblock; BackgroundImageCallbackPtr callblock; PresentationValue image, value; STRING url; STRING bg_image; CHAR_T saved; STRING base; CHAR_T tempname[MAX_LENGTH]; CHAR_T 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_HTML; } } else if (element) el = element; url = NULL; cssRule = SkipBlanksAndComments (cssRule); if (!ustrncasecmp (cssRule, TEXT("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 || !ustrcasecmp (bg_image, TEXT("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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBackgroundRepeat (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBackgroundRepeat (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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_HTML; } } repeat.typed_data.value = STYLE_REALSIZE; repeat.typed_data.unit = STYLE_UNIT_REL; repeat.typed_data.real = FALSE; cssRule = SkipBlanksAndComments (cssRule); if (!ustrncasecmp (cssRule, TEXT("no-repeat"), 9)) repeat.typed_data.value = STYLE_REALSIZE; else if (!ustrncasecmp (cssRule, TEXT("repeat-y"), 8)) repeat.typed_data.value = STYLE_VREPEAT; else if (!ustrncasecmp (cssRule, TEXT("repeat-x"), 8)) repeat.typed_data.value = STYLE_HREPEAT; else if (!ustrncasecmp (cssRule, TEXT("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. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBackgroundAttachment (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBackgroundAttachment (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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_HTML; } } cssRule = SkipBlanksAndComments (cssRule); if (!ustrncasecmp (cssRule, TEXT("scroll"), 6)) cssRule = SkipWord (cssRule); else if (!ustrncasecmp (cssRule, TEXT("fixed"), 5)) cssRule = SkipWord (cssRule); /* restore the refered element */ if (moved && !element) context->type = savedtype; return (cssRule); } /*---------------------------------------------------------------------- ParseCSSBackgroundPosition : parse a CSS BackgroundPosition attribute string. ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBackgroundPosition (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBackgroundPosition (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { 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_HTML; } } cssRule = SkipBlanksAndComments (cssRule); ok = TRUE; if (!ustrncasecmp (cssRule, TEXT("left"), 4)) cssRule = SkipWord (cssRule); else if (!ustrncasecmp (cssRule, TEXT("right"), 5)) cssRule = SkipWord (cssRule); else if (!ustrncasecmp (cssRule, TEXT("center"), 6)) cssRule = SkipWord (cssRule); else if (!ustrncasecmp (cssRule, TEXT("top"), 3)) cssRule = SkipWord (cssRule); else if (!ustrncasecmp (cssRule, TEXT("bottom"), 6)) cssRule = SkipWord (cssRule); else if (isdigit (*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 ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseCSSBackground (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static STRING ParseCSSBackground (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { STRING ptr; cssRule = SkipBlanksAndComments (cssRule); while (*cssRule != ';' && *cssRule != EOS && *cssRule != ',') { /* perhaps a Backgroud Image */ if (!ustrncasecmp (cssRule, TEXT("url"), 3)) cssRule = ParseCSSBackgroundImage (element, tsch, context, cssRule, css, isHTML); /* perhaps a Background Attachment */ else if (!ustrncasecmp (cssRule, TEXT("scroll"), 6) || !ustrncasecmp (cssRule, TEXT("fixed"), 5)) cssRule = ParseCSSBackgroundAttachment (element, tsch, context, cssRule, css, isHTML); /* perhaps a Background Repeat */ else if (!ustrncasecmp (cssRule, TEXT("no-repeat"), 9) || !ustrncasecmp (cssRule, TEXT("repeat-y"), 8) || !ustrncasecmp (cssRule, TEXT("repeat-x"), 8) || !ustrncasecmp (cssRule, TEXT("repeat"), 6)) cssRule = ParseCSSBackgroundRepeat (element, tsch, context, cssRule, css, isHTML); /* perhaps a Background Position */ else if (!ustrncasecmp (cssRule, TEXT("left"), 4) || !ustrncasecmp (cssRule, TEXT("right"), 5) || !ustrncasecmp (cssRule, TEXT("center"), 6) || !ustrncasecmp (cssRule, TEXT("top"), 3) || !ustrncasecmp (cssRule, TEXT("bottom"), 6) || isdigit (*cssRule)) cssRule = ParseCSSBackgroundPosition (element, tsch, context, cssRule, css, isHTML); /* perhaps a Background Color */ else { /* check if the rule has been found */ ptr = cssRule; cssRule = ParseCSSBackgroundColor (element, tsch, context, cssRule, css, isHTML); if (ptr == cssRule) /* rule not found */ cssRule = SkipProperty (cssRule); } cssRule = SkipBlanksAndComments (cssRule); } 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[] = { {TEXT ("font-family"), ParseCSSFontFamily}, {TEXT ("font-style"), ParseCSSFontStyle}, {TEXT ("font-variant"), ParseCSSFontVariant}, {TEXT ("font-weight"), ParseCSSFontWeight}, {TEXT ("font-size"), ParseCSSFontSize}, {TEXT ("font"), ParseCSSFont}, {TEXT ("color"), ParseCSSForeground}, {TEXT ("background-color"), ParseCSSBackgroundColor}, {TEXT ("background-image"), ParseCSSBackgroundImage}, {TEXT ("background-repeat"), ParseCSSBackgroundRepeat}, {TEXT ("background-attachment"), ParseCSSBackgroundAttachment}, {TEXT ("background-position"), ParseCSSBackgroundPosition}, {TEXT ("background"), ParseCSSBackground}, {TEXT ("word-spacing"), ParseCSSWordSpacing}, {TEXT ("letter-spacing"), ParseCSSLetterSpacing}, {TEXT ("text-decoration"), ParseCSSTextDecoration}, {TEXT ("vertical-align"), ParseCSSVerticalAlign}, {TEXT ("text-transform"), ParseCSSTextTransform}, {TEXT ("text-align"), ParseCSSTextAlign}, {TEXT ("text-indent"), ParseCSSTextIndent}, {TEXT ("line-height"), ParseCSSLineSpacing}, {TEXT ("margin-top"), ParseCSSMarginTop}, {TEXT ("margin-right"), ParseCSSMarginRight}, {TEXT ("margin-bottom"), ParseCSSMarginBottom}, {TEXT ("margin-left"), ParseCSSMarginLeft}, {TEXT ("margin"), ParseCSSMargin}, {TEXT ("padding-top"), ParseCSSPaddingTop}, {TEXT ("padding-right"), ParseCSSPaddingRight}, {TEXT ("padding-bottom"), ParseCSSPaddingBottom}, {TEXT ("padding-left"), ParseCSSPaddingLeft}, {TEXT ("padding"), ParseCSSPadding}, {TEXT ("border-top-width"), ParseCSSBorderTopWidth}, {TEXT ("border-right-width"), ParseCSSBorderRightWidth}, {TEXT ("border-bottom-width"), ParseCSSBorderBottomWidth}, {TEXT ("border-left-width"), ParseCSSBorderLeftWidth}, {TEXT ("border-width"), ParseCSSBorderWidth}, {TEXT ("border-top-color"), ParseCSSBorderColorTop}, {TEXT ("border-right-color"), ParseCSSBorderColorRight}, {TEXT ("border-bottom-color"), ParseCSSBorderColorBottom}, {TEXT ("border-left-color"), ParseCSSBorderColorLeft}, {TEXT ("border-color"), ParseCSSBorderColor}, {TEXT ("border-top-style"), ParseCSSBorderStyleTop}, {TEXT ("border-right-style"), ParseCSSBorderStyleRight}, {TEXT ("border-bottom-style"), ParseCSSBorderStyleBottom}, {TEXT ("border-left-style"), ParseCSSBorderStyleLeft}, {TEXT ("border-style"), ParseCSSBorderStyle}, {TEXT ("border-top"), ParseCSSBorderTop}, {TEXT ("border-right"), ParseCSSBorderRight}, {TEXT ("border-bottom"), ParseCSSBorderBottom}, {TEXT ("border-left"), ParseCSSBorderLeft}, {TEXT ("border"), ParseCSSBorder}, {TEXT ("width"), ParseCSSWidth}, {TEXT ("height"), ParseCSSHeight}, {TEXT ("float"), ParseCSSFloat}, {TEXT ("clear"), ParseCSSClear}, {TEXT ("display"), ParseCSSDisplay}, {TEXT ("white-space"), ParseCSSWhiteSpace}, {TEXT ("list-style-type"), ParseCSSListStyleType}, {TEXT ("list-style-image"), ParseCSSListStyleImage}, {TEXT ("list-style-position"), ParseCSSListStylePosition}, {TEXT ("list-style"), ParseCSSListStyle} }; #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 ----------------------------------------------------------------------*/ #ifdef __STDC__ static void ParseCSSRule (Element element, PSchema tsch, PresentationContext context, STRING cssRule, CSSInfoPtr css, ThotBool isHTML) #else static void ParseCSSRule (element, tsch, context, cssRule, css, isHTML) Element element; PSchema tsch; PresentationContext context; STRING cssRule; CSSInfoPtr css; ThotBool isHTML; #endif { DisplayMode dispMode; STRING 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); found = FALSE; /* look for the type of property */ for (i = 0; i < NB_CSSSTYLEATTRIBUTE && !found; i++) { lg = ustrlen (CSSProperties[i].name); if (!ustrncasecmp (cssRule, CSSProperties[i].name, lg)) { cssRule += lg; found = TRUE; i--; } } if (i == NB_CSSSTYLEATTRIBUTE) cssRule = SkipProperty (cssRule); else { /* update index and skip the ":" indicator if present */ cssRule = SkipBlanksAndComments (cssRule); if (*cssRule == ':') { cssRule++; cssRule = SkipBlanksAndComments (cssRule); } /* try to parse the attribute associated to this attribute */ if (CSSProperties[i].parsing_function != NULL) { p = CSSProperties[i].parsing_function (element, tsch, context, cssRule, css, isHTML); /* update index and skip the ";" separator if present */ cssRule = p; } } /* next property */ cssRule = SkipBlanksAndComments (cssRule); if (*cssRule == ',' || *cssRule == ';') { cssRule++; cssRule = SkipBlanksAndComments (cssRule); } } /* restore the display mode */ if (dispMode == DisplayImmediately) TtaSetDisplayMode (context->doc, dispMode); } /*---------------------------------------------------------------------- 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. All the possible values returned by the presentation drivers are described in thotlib/include/presentation.h -----------------------------------------------------------------------*/ #ifdef __STDC__ void PToCss (PresentationSetting settings, STRING buffer, int len) #else void PToCss (settings, buffer, len) PresentationSetting settings; STRING param; int len #endif { 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 PRFont: switch (settings->value.typed_data.value) { case STYLE_FONT_HELVETICA: ustrcpy (buffer, TEXT("font-family: helvetica")); break; case STYLE_FONT_TIMES: ustrcpy (buffer, TEXT("font-family: times")); break; case STYLE_FONT_COURIER: ustrcpy (buffer, TEXT("font-family: courier")); break; } break; case PRStyle: switch (settings->value.typed_data.value) { case STYLE_FONT_ROMAN: ustrcpy (buffer, TEXT("font-style: normal")); break; case STYLE_FONT_ITALICS: ustrcpy (buffer, TEXT("font-style: italic")); break; case STYLE_FONT_OBLIQUE: ustrcpy (buffer, TEXT("font-style: oblique")); break; } break; case PRWeight: switch (settings->value.typed_data.value) { case STYLE_WEIGHT_BOLD: ustrcpy (buffer, TEXT("font-weight: bold")); break; case STYLE_WEIGHT_NORMAL: ustrcpy (buffer, TEXT("font-weight: normal")); break; } break; case PRSize: if (unit == STYLE_UNIT_REL) { if (real) { usprintf (buffer, TEXT("font-size: %g"), fval); add_unit = 1; } else switch (settings->value.typed_data.value) { case 1: ustrcpy (buffer, TEXT("font-size: xx-small")); break; case 2: ustrcpy (buffer, TEXT("font-size: x-small")); break; case 3: ustrcpy (buffer, TEXT("font-size: small")); break; case 4: ustrcpy (buffer, TEXT("font-size: medium")); break; case 5: ustrcpy (buffer, TEXT("font-size: large")); break; case 6: ustrcpy (buffer, TEXT("font-size: x-large")); break; case 7: case 8: case 9: case 10: case 11: case 12: ustrcpy (buffer, TEXT("font-size: xx-large")); break; } } else { if (real) usprintf (buffer, TEXT("font-size: %g"), fval); else usprintf (buffer, TEXT("font-size: %d"), settings->value.typed_data.value); add_unit = 1; } break; case PRUnderline: switch (settings->value.typed_data.value) { case STYLE_UNDERLINE: ustrcpy (buffer, TEXT("text-decoration: underline")); break; case STYLE_OVERLINE: ustrcpy (buffer, TEXT("text-decoration: overline")); break; case STYLE_CROSSOUT: ustrcpy (buffer, TEXT("text-decoration: line-through")); break; } break; case PRIndent: if (real) usprintf (buffer, TEXT("text-indent: %g"), fval); else usprintf (buffer, TEXT("text-indent: %d"), settings->value.typed_data.value); add_unit = 1; break; case PRLineSpacing: if (real) usprintf (buffer, TEXT("line-height: %g"), fval); else usprintf (buffer, TEXT("line-height: %d"), settings->value.typed_data.value); add_unit = 1; break; case PRJustify: if (settings->value.typed_data.value == STYLE_JUSTIFIED) usprintf (buffer, TEXT("text-align: justify")); break; case PRAdjust: switch (settings->value.typed_data.value) { case STYLE_ADJUSTLEFT: ustrcpy (buffer, TEXT("text-align: left")); break; case STYLE_ADJUSTRIGHT: ustrcpy (buffer, TEXT("text-align: right")); break; case STYLE_ADJUSTCENTERED: ustrcpy (buffer, TEXT("text-align: center")); break; case STYLE_ADJUSTLEFTWITHDOTS: ustrcpy (buffer, TEXT("text-align: left")); break; } break; case PRHyphenate: break; case PRFillPattern: break; case PRBackground: TtaGiveThotRGB (settings->value.typed_data.value, &red, &green, &blue); usprintf (buffer, TEXT("background-color: #%02X%02X%02X"), red, green, blue); break; case PRForeground: TtaGiveThotRGB (settings->value.typed_data.value, &red, &green, &blue); usprintf (buffer, TEXT("color: #%02X%02X%02X"), red, green, blue); break; case PRMarginTop: if (real) usprintf (buffer, TEXT("marging-top: %g"), fval); else usprintf (buffer, TEXT("marging-top: %d"), settings->value.typed_data.value); add_unit = 1; break; case PRMarginLeft: if (real) usprintf (buffer, TEXT("margin-left: %g"), fval); else usprintf (buffer, TEXT("margin-left: %d"), settings->value.typed_data.value); add_unit = 1; break; case PRHeight: if (real) usprintf (buffer, TEXT("height: %g"), fval); else usprintf (buffer, TEXT("height: %d"), settings->value.typed_data.value); add_unit = 1; break; case PRWidth: if (real) usprintf (buffer, TEXT("width: %g"), fval); else usprintf (buffer, TEXT("width: %d"), settings->value.typed_data.value); add_unit = 1; break; case PRLine: if (settings->value.typed_data.value == STYLE_INLINE) ustrcpy (buffer, TEXT("display: inline")); else if (settings->value.typed_data.value == STYLE_NOTINLINE) ustrcpy (buffer, TEXT("display: block")); break; case PRBackgroundPicture: if (settings->value.pointer != NULL) usprintf (buffer, TEXT("background-image: url(%s)"), (STRING)(settings->value.pointer)); else usprintf (buffer, TEXT("background-image: none")); break; case PRPictureMode: switch (settings->value.typed_data.value) { case STYLE_REALSIZE: usprintf (buffer, TEXT("background-repeat: no-repeat")); break; case STYLE_REPEAT: usprintf (buffer, TEXT("background-repeat: repeat")); break; case STYLE_VREPEAT: usprintf (buffer, TEXT("background-repeat: repeat-y")); break; case STYLE_HREPEAT: usprintf (buffer, TEXT("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) { ustrcat (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. ----------------------------------------------------------------------*/ #ifdef __STDC__ void ParseHTMLSpecificStyle (Element el, STRING cssRule, Document doc, ThotBool destroy) #else void ParseHTMLSpecificStyle (el, cssRule, doc, destroy) Element elem; STRING cssRule; Document doc; ThotBool destroy; #endif { PresentationContext context; ElementType elType; ThotBool isHTML; /* A rule applying to BODY is really meant to address HTML */ elType = TtaGetElementType (el); isHTML = (ustrcmp(TtaGetSSchemaName (elType.ElSSchema), TEXT("HTML")) == 0); /* create the context of the Specific presentation driver */ context = TtaGetSpecificStyleContext (doc); if (context == NULL) return; context->type = elType.ElTypeNum; 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 ----------------------------------------------------------------------*/ #ifdef __STDC__ static STRING ParseGenericSelector (STRING selector, STRING cssRule, GenericContext ctxt, Document doc, CSSInfoPtr css) #else static STRING ParseGenericSelector (selector, cssRule, ctxt, doc, css) STRING selector; STRING cssRule; GenericContext ctxt; Document doc; CSSInfoPtr css; #endif { ElementType elType; PSchema tsch; AttributeType attrType; CHAR_T sel[MAX_ANCESTORS * 50]; STRING deb, cur; STRING structName; STRING names[MAX_ANCESTORS]; STRING ids[MAX_ANCESTORS]; STRING classes[MAX_ANCESTORS]; STRING pseudoclasses[MAX_ANCESTORS]; STRING attrs[MAX_ANCESTORS]; STRING attrvals[MAX_ANCESTORS]; int i, j, k, max, maxAttr; ThotBool isHTML; 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; selector = SkipBlanksAndComments (selector); cur = &sel[0]; max = 0; /* number of loops */ while (1) { 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 == '#') /* keep the element name which precedes the id or pseudo class or the class */ deb = cur; if (*selector == '.') { /* copy into sel[] the class */ classes[0] = cur; selector++; while (*selector != EOS && *selector != ',' && *selector != '.' && *selector != ':' && !TtaIsBlank (selector)) *cur++ = *selector++; *cur++ = EOS; } else if (*selector == ':') { /* copy into sel[] the pseudoclass */ pseudoclasses[0]= cur; selector++; while (*selector != EOS && *selector != ',' && *selector != '.' && *selector != ':' && !TtaIsBlank (selector)) *cur++ = *selector++; *cur++ = EOS; } else if (*selector == '#') { /* copy into sel[] the attribute */ ids[0] = cur; selector++; while (*selector != EOS && *selector != ',' && *selector != '.' && *selector != ':' && !TtaIsBlank (selector)) *cur++ = *selector++; *cur++ = EOS; } else if (*selector == '[') { /* copy into sel[] the attribute */ attrs[0] = cur; selector++; while (*selector != EOS && *selector != ']' && *selector != '=') *cur++ = *selector++; if (*cur == '=') { /* there is a value "xxxx" */ *cur++ = EOS; while (*selector != EOS && *selector != ']' && *selector != '"') selector++; if (*selector != EOS) { /* 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; 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 */ ctxt->type = elType.ElTypeNum; ctxt->name[0] = elType.ElTypeNum; ctxt->names_nb[0] = 0; ctxt->schema = 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++; } } else { /* add a new entry */ j = k; k++; } if (classes[i] || pseudoclasses[i] || ids[i] || attrs[i]) if (maxAttr > 0) /* Thot is not able to manage this kind of selector -> abort */ return (selector); else maxAttr++; /* store attributes information */ if (classes[i]) { ctxt->attrText[j] = classes[i]; ctxt->attrType[j] = HTML_ATTR_Class; } else if (pseudoclasses[i]) { ctxt->attrText[j] = pseudoclasses[i]; ctxt->attrType[j] = HTML_ATTR_PseudoClass; } else if (ids[i]) { ctxt->attrText[j] = ids[i]; ctxt->attrType[j] = HTML_ATTR_ID; } else if (attrs[i]) { MapHTMLAttribute (attrs[i], &attrType, names[i], doc); ctxt->attrText[j] = attrvals[i]; ctxt->attrType[j] = attrType.AttrTypeNum; } 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) ctxt->schema = TtaGetDocumentSSchema (doc); isHTML = (ustrcmp(TtaGetSSchemaName (ctxt->schema), TEXT("HTML")) == 0); tsch = GetPExtension (doc, ctxt->schema, css); structName = TtaGetSSchemaName (ctxt->schema); if (cssRule) ParseCSSRule (NULL, tsch, (PresentationContext) ctxt, cssRule, css, isHTML); return (selector); } /*---------------------------------------------------------------------- ParseStyleDeclaration : parse one HTML style declaration stored in the header of a HTML document We expect the style string to be of the form : [ e.g: pinky, awful { color: pink, font-family: helvetica } ----------------------------------------------------------------------*/ #ifdef __STDC__ static void ParseStyleDeclaration (Element el, STRING cssRule, Document doc, CSSInfoPtr css, ThotBool destroy) #else static void ParseStyleDeclaration (el, cssRule, doc, css, destroy) Element el; STRING cssRule; Document doc; CSSInfoPtr css; ThotBool destroy; #endif { GenericContext ctxt; STRING decl_end; STRING sel_end; STRING selector; CHAR_T saved1; CHAR_T saved2; /* separate the selectors string */ cssRule = SkipBlanksAndComments (cssRule); decl_end = cssRule; while ((*decl_end != EOS) && (*decl_end != '{')) decl_end++; if (*decl_end == EOS) 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) { fprintf (stderr, "Invalid STYLE declaration : %s\n", 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. ----------------------------------------------------------------------*/ #ifdef __STDC__ int IsImplicitClassName (STRING class, Document doc) #else int IsImplicitClassName (class, doc) STRING class; Document doc; #endif { CHAR_T name[200]; STRING cur = name, first; CHAR_T save; SSchema schema; /* make a local copy */ ustrncpy (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 3.2 : translate to CSS equiv * * * ************************************************************************/ /*---------------------------------------------------------------------- HTMLSetBackgroundColor : ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLSetBackgroundColor (Document doc, Element el, STRING color) #else void HTMLSetBackgroundColor (doc, el, color) Document doc; Element el; STRING color; #endif { CHAR_T css_command[100]; usprintf (css_command, TEXT("background-color: %s"), color); ParseHTMLSpecificStyle (el, css_command, doc, FALSE); } /*---------------------------------------------------------------------- HTMLSetBackgroundImage : repeat = repeat value image = url of background image ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLSetBackgroundImage (Document doc, Element el, int repeat, STRING image) #else void HTMLSetBackgroundImage (doc, el, repeat, image) Document doc; Element el; int repeat; STRING image; #endif { CHAR_T css_command[400]; /******* check buffer overflow ********/ usprintf (css_command, TEXT("background-image: url(%s); background-repeat: "), image); if (repeat == STYLE_REPEAT) ustrcat (css_command, TEXT("repeat")); else if (repeat == STYLE_HREPEAT) ustrcat (css_command, TEXT("repeat-x")); else if (repeat == STYLE_VREPEAT) ustrcat (css_command, TEXT("repeat-y")); else ustrcat (css_command, TEXT("no-repeat")); ParseHTMLSpecificStyle (el, css_command, doc, FALSE); } /*---------------------------------------------------------------------- HTMLSetForegroundColor : ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLSetForegroundColor (Document doc, Element el, STRING color) #else void HTMLSetForegroundColor (doc, el, color) Document doc; Element el; STRING color; #endif { CHAR_T css_command[100]; usprintf (css_command, TEXT("color: %s"), color); ParseHTMLSpecificStyle (el, css_command, doc, FALSE); } /*---------------------------------------------------------------------- HTMLResetBackgroundColor : ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLResetBackgroundColor (Document doc, Element el) #else void HTMLResetBackgroundColor (doc, el) Document doc; Element el; #endif { CHAR_T css_command[100]; usprintf (css_command, TEXT("background: red")); ParseHTMLSpecificStyle (el, css_command, doc, TRUE); } /*---------------------------------------------------------------------- HTMLResetBackgroundImage : ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLResetBackgroundImage (Document doc, Element el) #else void HTMLResetBackgroundImage (doc, el) Document doc; Element el; #endif { CHAR_T css_command[1000]; usprintf (css_command, TEXT("background-image: url(xx); background-repeat: repeat")); ParseHTMLSpecificStyle (el, css_command, doc, TRUE); } /*---------------------------------------------------------------------- HTMLResetForegroundColor : ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLResetForegroundColor (Document doc, Element el) #else void HTMLResetForegroundColor (doc, el) Document doc; Element el; #endif { CHAR_T css_command[100]; /* it's not necessary to well know the current color but it must be valid */ usprintf (css_command, TEXT("color: red")); ParseHTMLSpecificStyle (el, css_command, doc, TRUE); } /*---------------------------------------------------------------------- HTMLSetAlinkColor : ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLSetAlinkColor (Document doc, STRING color) #else void HTMLSetAlinkColor (doc, color) Document doc; STRING color; #endif { CHAR_T css_command[100]; usprintf (css_command, TEXT("a:link { color : %s }"), color); ApplyCSSRules (NULL, css_command, doc, FALSE); } /*---------------------------------------------------------------------- HTMLSetAactiveColor : ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLSetAactiveColor (Document doc, STRING color) #else void HTMLSetAactiveColor (doc, color) Document doc; STRING color; #endif { CHAR_T css_command[100]; usprintf (css_command, TEXT("a:active { color : %s }"), color); ApplyCSSRules (NULL, css_command, doc, FALSE); } /*---------------------------------------------------------------------- HTMLSetAvisitedColor : ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLSetAvisitedColor (Document doc, STRING color) #else void HTMLSetAvisitedColor (doc, color) Document doc; STRING color; #endif { CHAR_T css_command[100]; usprintf (css_command, TEXT("a:visited { color : %s }"), color); ApplyCSSRules (NULL, css_command, doc, FALSE); } /*---------------------------------------------------------------------- HTMLResetAlinkColor : ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLResetAlinkColor (Document doc) #else void HTMLResetAlinkColor (doc) Document doc; #endif { CHAR_T css_command[100]; usprintf (css_command, TEXT("a:link { color : red }")); ApplyCSSRules (NULL, css_command, doc, TRUE); } /*---------------------------------------------------------------------- HTMLResetAactiveColor : ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLResetAactiveColor (Document doc) #else void HTMLResetAactiveColor (doc) Document doc; #endif { CHAR_T css_command[100]; usprintf (css_command, TEXT("a:active { color : red }")); ApplyCSSRules (NULL, css_command, doc, TRUE); } /*---------------------------------------------------------------------- HTMLResetAvisitedColor : ----------------------------------------------------------------------*/ #ifdef __STDC__ void HTMLResetAvisitedColor (Document doc) #else void HTMLResetAvisitedColor (doc) Document doc; #endif { CHAR_T css_command[100]; usprintf (css_command, TEXT("a:visited { color : red }")); ApplyCSSRules (NULL, css_command, doc, TRUE); } /*---------------------------------------------------------------------- ApplyCSSRules: parse an CSS Style description stored in the header of a HTML document. ----------------------------------------------------------------------*/ #ifdef __STDC__ void ApplyCSSRules (Element el, STRING cssRule, Document doc, ThotBool destroy) #else void ApplyCSSRules (el, cssRule, doc, destroy) Element el; STRING cssRule; Document doc; ThotBool destroy; #endif { 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 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 withUndo indicates whether the changes made in the document structure and content have to be registered in the Undo queue or not ----------------------------------------------------------------------*/ #ifdef __STDC__ CHAR_T ReadCSSRules (Document docRef, CSSInfoPtr css, STRING buffer, ThotBool withUndo) #else CHAR_T ReadCSSRules (docRef, css, buffer, withUndo) Document docRef; CSSInfoPtr css; STRING buffer; ThotBool withUndo; #endif { CHAR_T c; STRING cssRule, base; DisplayMode dispMode; int index; int CSSindex; int CSScomment; int import; int openRule; ThotBool HTMLcomment; ThotBool toParse, eof; ThotBool ignoreMedia, media; ThotBool noRule; CSScomment = MAX_CSS_LENGTH; HTMLcomment = FALSE; CSSindex = 0; toParse = FALSE; noRule = FALSE; media = FALSE; ignoreMedia = FALSE; import = MAX_CSS_LENGTH; eof = FALSE; openRule = 0; c = SPACE; index = 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); 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 (ustrncasecmp (&CSSbuffer[import+1], TEXT("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; } else if (CSScomment == MAX_CSS_LENGTH && CSSindex > 0 && CSSbuffer[CSSindex - 1] == '<') { /* this is the closing tag ! */ CSSindex -= 2; /* remove 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 = !ustrncmp (&CSSbuffer[import+1], TEXT("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 = ustrstr (&CSSbuffer[import], TEXT("print")); else base = ustrstr (&CSSbuffer[import], TEXT("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: break; } } 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) ParseStyleDeclaration (NULL, CSSbuffer, docRef, css, FALSE); else if (import != MAX_CSS_LENGTH && !ustrncasecmp (&CSSbuffer[import+1], TEXT("import"), 6)) { /* import section */ cssRule = &CSSbuffer[import+7]; cssRule = TtaSkipBlanks (cssRule); if (!ustrncasecmp (cssRule, TEXT("url"), 3)) { cssRule = &cssRule[3]; cssRule = TtaSkipBlanks (cssRule); if (*cssRule == '(') { cssRule++; cssRule = TtaSkipBlanks (cssRule); base = cssRule; while (*cssRule != EOS && *cssRule != ')') cssRule++; *cssRule = EOS; LoadStyleSheet (base, docRef, NULL, css, css->media[docRef]); } } /*** 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 */ else if (*cssRule == '"') { cssRule++; base = cssRule; while (*cssRule != EOS && *cssRule != '"') cssRule++; *cssRule = EOS; LoadStyleSheet (base, docRef, NULL, css, css->media[docRef]); } import = MAX_CSS_LENGTH; } } toParse = FALSE; noRule = FALSE; CSSindex = 0; } } /* restore the display mode */ if (dispMode == DisplayImmediately) TtaSetDisplayMode (docRef, dispMode); return (c); }