parser.cpp
来自「konqueror3 embedded版本, KDE环境下的当家浏览器的嵌入式版」· C++ 代码 · 共 2,076 行 · 第 1/5 页
CPP
2,076 行
break; case 101: /* attrib */ { delete yyvaluep->selector; yyvaluep->selector = 0; }; break; case 104: /* pseudo */ { delete yyvaluep->selector; yyvaluep->selector = 0; }; break; case 110: /* expr */ { delete yyvaluep->valueList; yyvaluep->valueList = 0; }; break; default: break; }}/* Prevent warnings from -Wmissing-prototypes. */#ifdef YYPARSE_PARAM# if defined (__STDC__) || defined (__cplusplus)int yyparse (void *YYPARSE_PARAM);# elseint yyparse ();# endif#else /* ! YYPARSE_PARAM */#if defined (__STDC__) || defined (__cplusplus)int yyparse (void);#elseint yyparse ();#endif#endif /* ! YYPARSE_PARAM *//*----------.| yyparse. |`----------*/#ifdef YYPARSE_PARAM# if defined (__STDC__) || defined (__cplusplus)int yyparse (void *YYPARSE_PARAM)# elseint yyparse (YYPARSE_PARAM) void *YYPARSE_PARAM;# endif#else /* ! YYPARSE_PARAM */#if defined (__STDC__) || defined (__cplusplus)intyyparse (void)#elseintyyparse ()#endif#endif{ /* The lookahead symbol. */int yychar;/* The semantic value of the lookahead symbol. */YYSTYPE yylval;/* Number of syntax errors so far. */int yynerrs; register int yystate; register int yyn; int yyresult; /* Number of tokens to shift before error messages enabled. */ int yyerrstatus; /* Lookahead token as an internal (translated) token number. */ int yytoken = 0; /* Three stacks and their tools: `yyss': related to states, `yyvs': related to semantic values, `yyls': related to locations. Refer to the stacks thru separate pointers, to allow yyoverflow to reallocate them elsewhere. */ /* The state stack. */ short yyssa[YYINITDEPTH]; short *yyss = yyssa; register short *yyssp; /* The semantic value stack. */ YYSTYPE yyvsa[YYINITDEPTH]; YYSTYPE *yyvs = yyvsa; register YYSTYPE *yyvsp;#define YYPOPSTACK (yyvsp--, yyssp--) YYSIZE_T yystacksize = YYINITDEPTH; /* The variables used to return semantic value and location from the action routines. */ YYSTYPE yyval; /* When reducing, the number of symbols on the RHS of the reduced rule. */ int yylen; YYDPRINTF ((stderr, "Starting parse\n")); yystate = 0; yyerrstatus = 0; yynerrs = 0; yychar = YYEMPTY; /* Cause a token to be read. */ /* Initialize stack pointers. Waste one element of value and location stack so that they stay on the same level as the state stack. The wasted elements are never initialized. */ yyssp = yyss; yyvsp = yyvs; goto yysetstate;/*------------------------------------------------------------.| yynewstate -- Push a new state, which is found in yystate. |`------------------------------------------------------------*/ yynewstate: /* In all cases, when you get here, the value and location stacks have just been pushed. so pushing a state here evens the stacks. */ yyssp++; yysetstate: *yyssp = yystate; if (yyss + yystacksize - 1 <= yyssp) { /* Get the current used size of the three stacks, in elements. */ YYSIZE_T yysize = yyssp - yyss + 1;#ifdef yyoverflow { /* Give user a chance to reallocate the stack. Use copies of these so that the &'s don't force the real ones into memory. */ YYSTYPE *yyvs1 = yyvs; short *yyss1 = yyss; /* Each stack pointer address is followed by the size of the data in use in that stack, in bytes. This used to be a conditional around just the two extra args, but that might be undefined if yyoverflow is a macro. */ yyoverflow ("parser stack overflow", &yyss1, yysize * sizeof (*yyssp), &yyvs1, yysize * sizeof (*yyvsp), &yystacksize); yyss = yyss1; yyvs = yyvs1; }#else /* no yyoverflow */# ifndef YYSTACK_RELOCATE goto yyoverflowlab;# else /* Extend the stack our own way. */ if (YYMAXDEPTH <= yystacksize) goto yyoverflowlab; yystacksize *= 2; if (YYMAXDEPTH < yystacksize) yystacksize = YYMAXDEPTH; { short *yyss1 = yyss; union yyalloc *yyptr = (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); if (! yyptr) goto yyoverflowlab; YYSTACK_RELOCATE (yyss); YYSTACK_RELOCATE (yyvs);# undef YYSTACK_RELOCATE if (yyss1 != yyssa) YYSTACK_FREE (yyss1); }# endif#endif /* no yyoverflow */ yyssp = yyss + yysize - 1; yyvsp = yyvs + yysize - 1; YYDPRINTF ((stderr, "Stack size increased to %lu\n", (unsigned long int) yystacksize)); if (yyss + yystacksize - 1 <= yyssp) YYABORT; } YYDPRINTF ((stderr, "Entering state %d\n", yystate)); goto yybackup;/*-----------.| yybackup. |`-----------*/yybackup:/* Do appropriate processing given the current state. *//* Read a lookahead token if we need one and don't already have one. *//* yyresume: */ /* First try to decide what to do without reference to lookahead token. */ yyn = yypact[yystate]; if (yyn == YYPACT_NINF) goto yydefault; /* Not known => get a lookahead token if don't already have one. */ /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ if (yychar == YYEMPTY) { YYDPRINTF ((stderr, "Reading a token: ")); yychar = YYLEX; } if (yychar <= YYEOF) { yychar = yytoken = YYEOF; YYDPRINTF ((stderr, "Now at end of input.\n")); } else { yytoken = YYTRANSLATE (yychar); YYDSYMPRINTF ("Next token is", yytoken, &yylval, &yylloc); } /* If the proper action on seeing token YYTOKEN is to reduce or to detect an error, take that action. */ yyn += yytoken; if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) goto yydefault; yyn = yytable[yyn]; if (yyn <= 0) { if (yyn == 0 || yyn == YYTABLE_NINF) goto yyerrlab; yyn = -yyn; goto yyreduce; } if (yyn == YYFINAL) YYACCEPT; /* Shift the lookahead token. */ YYDPRINTF ((stderr, "Shifting token %s, ", yytname[yytoken])); /* Discard the token being shifted unless it is eof. */ if (yychar != YYEOF) yychar = YYEMPTY; *++yyvsp = yylval; /* Count tokens shifted since error; after three, turn off error status. */ if (yyerrstatus) yyerrstatus--; yystate = yyn; goto yynewstate;/*-----------------------------------------------------------.| yydefault -- do the default action for the current state. |`-----------------------------------------------------------*/yydefault: yyn = yydefact[yystate]; if (yyn == 0) goto yyerrlab; goto yyreduce;/*-----------------------------.| yyreduce -- Do a reduction. |`-----------------------------*/yyreduce: /* yyn is the number of a rule to reduce with. */ yylen = yyr2[yyn]; /* If YYLEN is nonzero, implement the default value of the action: `$$ = $1'. Otherwise, the following line sets YYVAL to garbage. This behavior is undocumented and Bison users should not rely upon it. Assigning to YYVAL unconditionally makes the parser a bit smaller, and it avoids a GCC warning that YYVAL may be used uninitialized. */ yyval = yyvsp[1-yylen]; YY_REDUCE_PRINT (yyn); switch (yyn) { case 6: { CSSParser *p = static_cast<CSSParser *>(parser); p->rule = yyvsp[-2].rule; ;} break; case 7: { /* can be empty */ ;} break; case 8: { CSSParser *p = static_cast<CSSParser *>(parser); if ( yyvsp[-1].valueList ) { p->valueList = yyvsp[-1].valueList;#ifdef CSS_DEBUG kdDebug( 6080 ) << " got property for " << p->id << (p->important?" important":"")<< endl; bool ok =#endif p->parseValue( p->id, p->important );#ifdef CSS_DEBUG if ( !ok ) kdDebug( 6080 ) << " couldn't parse value!" << endl;#endif }#ifdef CSS_DEBUG else kdDebug( 6080 ) << " no value found!" << endl;#endif delete p->valueList; p->valueList = 0; ;} break; case 15: {#ifdef CSS_DEBUG kdDebug( 6080 ) << "charset rule: " << qString(yyvsp[-2].string) << endl;#endif ;} break; case 19: { CSSParser *p = static_cast<CSSParser *>(parser); if ( yyvsp[-1].rule && p->styleElement && p->styleElement->isCSSStyleSheet() ) { p->styleElement->append( yyvsp[-1].rule ); } else { delete yyvsp[-1].rule; } ;} break; case 20: {#ifdef CSS_DEBUG kdDebug( 6080 ) << "@import: " << qString(yyvsp[-3].string) << endl;#endif CSSParser *p = static_cast<CSSParser *>(parser); if ( yyvsp[-1].mediaList && p->styleElement && p->styleElement->isCSSStyleSheet() ) yyval.rule = new CSSImportRuleImpl( p->styleElement, domString(yyvsp[-3].string), yyvsp[-1].mediaList ); else yyval.rule = 0; ;} break; case 21: { yyval.rule = 0; ;} break; case 22: { yyval.rule = 0; ;} break; case 25: {#ifdef CSS_DEBUG kdDebug( 6080 ) << "@namespace: " << qString(yyvsp[-2].string) << endl;#endif CSSParser *p = static_cast<CSSParser *>(parser); if (p->styleElement && p->styleElement->isCSSStyleSheet()) static_cast<CSSStyleSheetImpl*>(p->styleElement)->addNamespace(p, domString(yyvsp[-3].string), domString(yyvsp[-2].string)); ;}
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