diff -r 000000000000 -r dd21522fd290 webengine/osswebengine/WebCore/css/CSSGrammar.y --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/webengine/osswebengine/WebCore/css/CSSGrammar.y Mon Mar 30 12:54:55 2009 +0300 @@ -0,0 +1,1198 @@ +%{ + +/* + * This file is part of the KDE libraries + * Copyright (C) 2002-2003 Lars Knoll (knoll@kde.org) + * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. + * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#include "config.h" + +#include "CSSMediaRule.h" +#include "CSSParser.h" +#include "CSSPrimitiveValue.h" +#include "CSSRule.h" +#include "CSSRuleList.h" +#include "CSSSelector.h" +#include "CSSStyleSheet.h" +#include "Document.h" +#include "HTMLNames.h" +#include "MediaList.h" +#include "MediaQuery.h" +#include "MediaQueryExp.h" +#include "PlatformString.h" +#include +#include + +#if ENABLE(SVG) +#include "ksvgcssproperties.h" +#include "ksvgcssvalues.h" +#endif + +using namespace WebCore; +using namespace HTMLNames; + +// The following file defines the function +// const struct props *findProp(const char *word, int len) +// +// with 'props->id' a CSS property in the range from CSS_PROP_MIN to +// (and including) CSS_PROP_TOTAL-1 + +#include "CSSPropertyNames.c" +#include "CSSValueKeywords.c" + +namespace WebCore { + +int getPropertyID(const char* tagStr, int len) +{ + DeprecatedString prop; + + if (len && tagStr[0] == '-') { + prop = DeprecatedString(tagStr, len); + if (prop.startsWith("-apple-")) { + prop = "-webkit-" + prop.mid(7); + tagStr = prop.ascii(); + len++; + } else if (prop.startsWith("-khtml-")) { + prop = "-webkit-" + prop.mid(7); + len++; + tagStr = prop.ascii(); + } + + // Honor the use of old-style opacity (for Safari 1.1). + if (prop == "-webkit-opacity") { + const char * const opacity = "opacity"; + tagStr = opacity; + len = strlen(opacity); + } + } + + const struct props* propsPtr = findProp(tagStr, len); + if (!propsPtr) + return 0; + + return propsPtr->id; +} + +} // namespace WebCore + +static inline int getValueID(const char* tagStr, int len) +{ + DeprecatedString prop; + if (len && tagStr[0] == '-') { + prop = DeprecatedString(tagStr, len); + if (prop.startsWith("-apple-")) { + prop = "-webkit-" + prop.mid(7); + tagStr = prop.ascii(); + len++; + } else if (prop.startsWith("-khtml-")) { + prop = "-webkit-" + prop.mid(7); + len++; + tagStr = prop.ascii(); + } + } + + const struct css_value* val = findValue(tagStr, len); + if (!val) + return 0; + + return val->id; +} + +#define YYENABLE_NLS 0 +#define YYLTYPE_IS_TRIVIAL 1 +#define YYMAXDEPTH 10000 +#define YYDEBUG 0 +#define YYPARSE_PARAM parser + +%} + +%pure_parser + +%union { + CSSRule* rule; + CSSSelector* selector; + bool ok; + MediaList *mediaList; + CSSMediaRule* mediaRule; + CSSRuleList* ruleList; + ParseString string; + float val; + int prop_id; + int attribute; + CSSSelector::Relation relation; + bool b; + int i; + char tok; + Value value; + ValueList* valueList; + + MediaQuery* mediaQuery; + MediaQueryExp* mediaQueryExp; + Vector* mediaQueryExpList; + MediaQuery::Restrictor mediaQueryRestrictor; +} + +%{ + +static inline int cssyyerror(const char*) { return 1; } +static int cssyylex(YYSTYPE* yylval) { return CSSParser::current()->lex(yylval); } + +%} + +//%expect 37 + +%left UNIMPORTANT_TOK + +%token WHITESPACE SGML_CD + +%token INCLUDES +%token DASHMATCH +%token BEGINSWITH +%token ENDSWITH +%token CONTAINS + +%token STRING + +%right IDENT + +%nonassoc HEX +%nonassoc IDSEL +%nonassoc ':' +%nonassoc '.' +%nonassoc '[' +%nonassoc '*' +%nonassoc error +%left '|' + +%token IMPORT_SYM +%token PAGE_SYM +%token MEDIA_SYM +%token FONT_FACE_SYM +%token CHARSET_SYM +%token NAMESPACE_SYM +%token WEBKIT_RULE_SYM +%token WEBKIT_DECLS_SYM +%token WEBKIT_VALUE_SYM +%token WEBKIT_MEDIAQUERY_SYM + +%token IMPORTANT_SYM +%token MEDIA_ONLY +%token MEDIA_NOT +%token MEDIA_AND + +%token QEMS +%token EMS +%token EXS +%token PXS +%token CMS +%token MMS +%token INS +%token PTS +%token PCS +%token DEGS +%token RADS +%token GRADS +%token MSECS +%token SECS +%token HERZ +%token KHERZ +%token DIMEN +%token PERCENTAGE +%token FLOATTOKEN +%token INTEGER + +%token URI +%token FUNCTION +%token NOTFUNCTION + +%token UNICODERANGE + +%type combinator + +%type charset +%type ruleset +%type ruleset_or_import +%type media +%type import +%type page +%type font_face +%type invalid_rule +%type invalid_at +%type invalid_import +%type rule + +%type maybe_ns_prefix + +%type namespace_selector + +%type string_or_uri +%type ident_or_string +%type medium +%type hexcolor + +%type media_feature +%type media_list +%type maybe_media_list +%type media_query +%type maybe_media_restrictor +%type maybe_media_value +%type media_query_exp +%type media_query_exp_list +%type maybe_media_query_exp_list + +%type ruleset_list + +%type property + +%type specifier +%type specifier_list +%type simple_selector +%type selector +%type selector_list +%type class +%type attrib +%type pseudo + +%type declaration_list +%type decl_list +%type declaration + +%type prio + +%type match +%type unary_operator +%type operator + +%type expr +%type term +%type unary_term +%type function + +%type element_name +%type attr_name + +%% + +stylesheet: + maybe_charset maybe_sgml import_list namespace_list rule_list + | webkit_rule maybe_space + | webkit_decls maybe_space + | webkit_value maybe_space + | webkit_mediaquery maybe_space + ; + +ruleset_or_import: + ruleset | + import +; + +webkit_rule: + WEBKIT_RULE_SYM '{' maybe_space ruleset_or_import maybe_space '}' { + static_cast(parser)->rule = $4; + } +; + +webkit_decls: + WEBKIT_DECLS_SYM '{' maybe_space declaration_list '}' { + /* can be empty */ + } +; + +webkit_value: + WEBKIT_VALUE_SYM '{' maybe_space expr '}' { + CSSParser* p = static_cast(parser); + if ($4) { + p->valueList = p->sinkFloatingValueList($4); + int oldParsedProperties = p->numParsedProperties; + if (!p->parseValue(p->id, p->important)) + p->rollbackLastProperties(p->numParsedProperties - oldParsedProperties); + delete p->valueList; + p->valueList = 0; + } + } +; + +webkit_mediaquery: + WEBKIT_MEDIAQUERY_SYM WHITESPACE maybe_space media_query '}' { + CSSParser* p = static_cast(parser); + p->mediaQuery = p->sinkFloatingMediaQuery($4); + } +; + +maybe_space: + /* empty */ %prec UNIMPORTANT_TOK + | maybe_space WHITESPACE + ; + +maybe_sgml: + /* empty */ + | maybe_sgml SGML_CD + | maybe_sgml WHITESPACE + ; + +maybe_charset: + /* empty */ + | charset { + } +; + +charset: + CHARSET_SYM maybe_space STRING maybe_space ';' { + CSSParser* p = static_cast(parser); + $$ = static_cast(parser)->createCharsetRule($3); + if ($$ && p->styleElement && p->styleElement->isCSSStyleSheet()) + p->styleElement->append($$); + } + | CHARSET_SYM error invalid_block { + } + | CHARSET_SYM error ';' { + } +; + +import_list: + /* empty */ + | import_list import maybe_sgml { + CSSParser* p = static_cast(parser); + if ($2 && p->styleElement && p->styleElement->isCSSStyleSheet()) + p->styleElement->append($2); + } + ; + +namespace_list: +/* empty */ +| namespace_list namespace maybe_sgml +; + +rule_list: + /* empty */ + | rule_list rule maybe_sgml { + CSSParser* p = static_cast(parser); + if ($2 && p->styleElement && p->styleElement->isCSSStyleSheet()) + p->styleElement->append($2); + } + ; + +rule: + ruleset + | media + | page + | font_face + | invalid_rule + | invalid_at + | invalid_import + ; + +import: + IMPORT_SYM maybe_space string_or_uri maybe_space maybe_media_list ';' { + $$ = static_cast(parser)->createImportRule($3, $5); + } + | IMPORT_SYM error invalid_block { + $$ = 0; + } + | IMPORT_SYM error ';' { + $$ = 0; + } + ; + +namespace: +NAMESPACE_SYM maybe_space maybe_ns_prefix string_or_uri maybe_space ';' { + CSSParser* p = static_cast(parser); + if (p->styleElement && p->styleElement->isCSSStyleSheet()) + static_cast(p->styleElement)->addNamespace(p, atomicString($3), atomicString($4)); +} +| NAMESPACE_SYM error invalid_block +| NAMESPACE_SYM error ';' +; + +maybe_ns_prefix: +/* empty */ { $$.characters = 0; } +| IDENT WHITESPACE { $$ = $1; } +; + +string_or_uri: +STRING +| URI +; + +media_feature: + IDENT maybe_space { + $$ = $1; + } + ; + +maybe_media_value: + /*empty*/ { + $$ = 0; + } + | ':' maybe_space expr maybe_space { + $$ = $3; + } + ; + +media_query_exp: + MEDIA_AND maybe_space '(' maybe_space media_feature maybe_space maybe_media_value ')' maybe_space { + $5.lower(); + $$ = static_cast(parser)->createFloatingMediaQueryExp(atomicString($5), $7); + } + ; + +media_query_exp_list: + media_query_exp { + CSSParser* p = static_cast(parser); + $$ = p->createFloatingMediaQueryExpList(); + $$->append(p->sinkFloatingMediaQueryExp($1)); + } + | media_query_exp_list media_query_exp { + $$ = $1; + $$->append(static_cast(parser)->sinkFloatingMediaQueryExp($2)); + } + ; + +maybe_media_query_exp_list: + /*empty*/ { + $$ = static_cast(parser)->createFloatingMediaQueryExpList(); + } + | media_query_exp_list + ; + +maybe_media_restrictor: + /*empty*/ { + $$ = MediaQuery::None; + } + | MEDIA_ONLY { + $$ = MediaQuery::Only; + } + | MEDIA_NOT { + $$ = MediaQuery::Not; + } + ; + +media_query: + maybe_media_restrictor maybe_space medium maybe_media_query_exp_list { + CSSParser* p = static_cast(parser); + $3.lower(); + $$ = p->createFloatingMediaQuery($1, domString($3), p->sinkFloatingMediaQueryExpList($4)); + } + ; + +maybe_media_list: + /* empty */ { + $$ = static_cast(parser)->createMediaList(); + } + | media_list + ; + +media_list: + media_query { + CSSParser* p = static_cast(parser); + $$ = p->createMediaList(); + $$->appendMediaQuery(p->sinkFloatingMediaQuery($1)); + } + | media_list ',' maybe_space media_query { + $$ = $1; + if ($$) + $$->appendMediaQuery(static_cast(parser)->sinkFloatingMediaQuery($4)); + } + | media_list error { + $$ = 0; + } + ; + +media: + MEDIA_SYM maybe_space media_list '{' maybe_space ruleset_list '}' { + $$ = static_cast(parser)->createMediaRule($3, $6); + } + | MEDIA_SYM maybe_space '{' maybe_space ruleset_list '}' { + $$ = static_cast(parser)->createMediaRule(0, $5); + } + ; + +ruleset_list: + /* empty */ { $$ = 0; } + | ruleset_list ruleset maybe_space { + $$ = $1; + if ($2) { + if (!$$) + $$ = static_cast(parser)->createRuleList(); + $$->append($2); + } + } + ; + +medium: + IDENT maybe_space { + $$ = $1; + } + ; + +/* +page: + PAGE_SYM maybe_space IDENT? pseudo_page? maybe_space + '{' maybe_space declaration [ ';' maybe_space declaration ]* '}' maybe_space + ; + +pseudo_page + : ':' IDENT + ; + +font_face + : FONT_FACE_SYM maybe_space + '{' maybe_space declaration [ ';' maybe_space declaration ]* '}' maybe_space + ; +*/ + +page: + PAGE_SYM error invalid_block { + $$ = 0; + } + | PAGE_SYM error ';' { + $$ = 0; + } + ; + +font_face: + FONT_FACE_SYM error invalid_block { + $$ = 0; + } + | FONT_FACE_SYM error ';' { + $$ = 0; + } +; + +combinator: + '+' maybe_space { $$ = CSSSelector::DirectAdjacent; } + | '~' maybe_space { $$ = CSSSelector::IndirectAdjacent; } + | '>' maybe_space { $$ = CSSSelector::Child; } + | /* empty */ { $$ = CSSSelector::Descendant; } + ; + +unary_operator: + '-' { $$ = -1; } + | '+' { $$ = 1; } + ; + +ruleset: + selector_list '{' maybe_space declaration_list '}' { + $$ = static_cast(parser)->createStyleRule($1); + } + ; + +selector_list: + selector %prec UNIMPORTANT_TOK { + $$ = $1; + } + | selector_list ',' maybe_space selector %prec UNIMPORTANT_TOK { + if ($1 && $4) { + CSSParser* p = static_cast(parser); + $$ = $1; + $$->append(p->sinkFloatingSelector($4)); + } else + $$ = 0; + } + | selector_list error { + $$ = 0; + } + ; + +selector: + simple_selector { + $$ = $1; + } + | selector combinator simple_selector { + $$ = $3; + if (!$1) + $$ = 0; + else if ($$) { + CSSParser* p = static_cast(parser); + CSSSelector* end = $$; + while (end->m_tagHistory) + end = end->m_tagHistory; + end->m_relation = $2; + end->m_tagHistory = p->sinkFloatingSelector($1); + if ($2 == CSSSelector::Descendant || $2 == CSSSelector::Child) { + if (Document* doc = p->document()) + doc->setUsesDescendantRules(true); + } else if ($2 == CSSSelector::DirectAdjacent || $2 == CSSSelector::IndirectAdjacent) { + if (Document* doc = p->document()) + doc->setUsesSiblingRules(true); + } + } + } + | selector error { + $$ = 0; + } + ; + +namespace_selector: + /* empty */ '|' { $$.characters = 0; $$.length = 0; } + | '*' '|' { static UChar star = '*'; $$.characters = ☆ $$.length = 1; } + | IDENT '|' { $$ = $1; } +; + +simple_selector: + element_name maybe_space { + CSSParser* p = static_cast(parser); + $$ = p->createFloatingSelector(); + $$->m_tag = QualifiedName(nullAtom, atomicString($1), p->defaultNamespace); + } + | element_name specifier_list maybe_space { + $$ = $2; + if ($$) { + CSSParser* p = static_cast(parser); + $$->m_tag = QualifiedName(nullAtom, atomicString($1), p->defaultNamespace); + } + } + | specifier_list maybe_space { + $$ = $1; + CSSParser* p = static_cast(parser); + if ($$ && p->defaultNamespace != starAtom) + $$->m_tag = QualifiedName(nullAtom, starAtom, p->defaultNamespace); + } + | namespace_selector element_name maybe_space { + AtomicString namespacePrefix = atomicString($1); + CSSParser* p = static_cast(parser); + $$ = p->createFloatingSelector(); + if (p->styleElement && p->styleElement->isCSSStyleSheet()) + $$->m_tag = QualifiedName(namespacePrefix, + atomicString($2), + static_cast(p->styleElement)->determineNamespace(namespacePrefix)); + else // FIXME: Shouldn't this case be an error? + $$->m_tag = QualifiedName(nullAtom, atomicString($2), p->defaultNamespace); + } + | namespace_selector element_name specifier_list maybe_space { + $$ = $3; + if ($$) { + AtomicString namespacePrefix = atomicString($1); + CSSParser* p = static_cast(parser); + if (p->styleElement && p->styleElement->isCSSStyleSheet()) + $$->m_tag = QualifiedName(namespacePrefix, + atomicString($2), + static_cast(p->styleElement)->determineNamespace(namespacePrefix)); + else // FIXME: Shouldn't this case be an error? + $$->m_tag = QualifiedName(nullAtom, atomicString($2), p->defaultNamespace); + } + } + | namespace_selector specifier_list maybe_space { + $$ = $2; + if ($$) { + AtomicString namespacePrefix = atomicString($1); + CSSParser* p = static_cast(parser); + if (p->styleElement && p->styleElement->isCSSStyleSheet()) + $$->m_tag = QualifiedName(namespacePrefix, + starAtom, + static_cast(p->styleElement)->determineNamespace(namespacePrefix)); + } + } + ; + +element_name: + IDENT { + ParseString& str = $1; + CSSParser* p = static_cast(parser); + Document* doc = p->document(); + if (doc && doc->isHTMLDocument()) + str.lower(); + $$ = str; + } + | '*' { + static UChar star = '*'; + $$.characters = ☆ + $$.length = 1; + } + ; + +specifier_list: + specifier { + $$ = $1; + } + | specifier_list specifier { + if (!$2) + $$ = 0; + else if ($1) { + $$ = $1; + CSSParser* p = static_cast(parser); + CSSSelector* end = $1; + while (end->m_tagHistory) + end = end->m_tagHistory; + end->m_relation = CSSSelector::SubSelector; + end->m_tagHistory = p->sinkFloatingSelector($2); + } + } + | specifier_list error { + $$ = 0; + } +; + +specifier: + IDSEL { + CSSParser* p = static_cast(parser); + $$ = p->createFloatingSelector(); + $$->m_match = CSSSelector::Id; + if (!p->strict) + $1.lower(); + $$->m_attr = idAttr; + $$->m_value = atomicString($1); + } + | HEX { + if ($1.characters[0] >= '0' && $1.characters[0] <= '9') { + $$ = 0; + } else { + CSSParser* p = static_cast(parser); + $$ = p->createFloatingSelector(); + $$->m_match = CSSSelector::Id; + if (!p->strict) + $1.lower(); + $$->m_attr = idAttr; + $$->m_value = atomicString($1); + } + } + | class + | attrib + | pseudo + ; + +class: + '.' IDENT { + CSSParser* p = static_cast(parser); + $$ = p->createFloatingSelector(); + $$->m_match = CSSSelector::Class; + if (!p->strict) + $2.lower(); + $$->m_attr = classAttr; + $$->m_value = atomicString($2); + } + ; + +attr_name: + IDENT maybe_space { + ParseString& str = $1; + CSSParser* p = static_cast(parser); + Document* doc = p->document(); + if (doc && doc->isHTMLDocument()) + str.lower(); + $$ = str; + } + ; + +attrib: + '[' maybe_space attr_name ']' { + $$ = static_cast(parser)->createFloatingSelector(); + $$->m_attr = QualifiedName(nullAtom, atomicString($3), nullAtom); + $$->m_match = CSSSelector::Set; + } + | '[' maybe_space attr_name match maybe_space ident_or_string maybe_space ']' { + $$ = static_cast(parser)->createFloatingSelector(); + $$->m_attr = QualifiedName(nullAtom, atomicString($3), nullAtom); + $$->m_match = (CSSSelector::Match)$4; + $$->m_value = atomicString($6); + } + | '[' maybe_space namespace_selector attr_name ']' { + AtomicString namespacePrefix = atomicString($3); + CSSParser* p = static_cast(parser); + $$ = p->createFloatingSelector(); + $$->m_attr = QualifiedName(namespacePrefix, + atomicString($4), + static_cast(p->styleElement)->determineNamespace(namespacePrefix)); + $$->m_match = CSSSelector::Set; + } + | '[' maybe_space namespace_selector attr_name match maybe_space ident_or_string maybe_space ']' { + AtomicString namespacePrefix = atomicString($3); + CSSParser* p = static_cast(parser); + $$ = p->createFloatingSelector(); + $$->m_attr = QualifiedName(namespacePrefix, + atomicString($4), + static_cast(p->styleElement)->determineNamespace(namespacePrefix)); + $$->m_match = (CSSSelector::Match)$5; + $$->m_value = atomicString($7); + } + ; + +match: + '=' { + $$ = CSSSelector::Exact; + } + | INCLUDES { + $$ = CSSSelector::List; + } + | DASHMATCH { + $$ = CSSSelector::Hyphen; + } + | BEGINSWITH { + $$ = CSSSelector::Begin; + } + | ENDSWITH { + $$ = CSSSelector::End; + } + | CONTAINS { + $$ = CSSSelector::Contain; + } + ; + +ident_or_string: + IDENT + | STRING + ; + +pseudo: + ':' IDENT { + $$ = static_cast(parser)->createFloatingSelector(); + $$->m_match = CSSSelector::PseudoClass; + $2.lower(); + $$->m_value = atomicString($2); + CSSSelector::PseudoType type = $$->pseudoType(); + if (type == CSSSelector::PseudoUnknown) + $$ = 0; + else if (type == CSSSelector::PseudoEmpty || + type == CSSSelector::PseudoFirstChild) { + CSSParser* p = static_cast(parser); + Document* doc = p->document(); + if (doc) + doc->setUsesSiblingRules(true); + } else if (type == CSSSelector::PseudoFirstLine) { + CSSParser* p = static_cast(parser); + if (Document* doc = p->document()) + doc->setUsesFirstLineRules(true); + } + } + | ':' ':' IDENT { + $$ = static_cast(parser)->createFloatingSelector(); + $$->m_match = CSSSelector::PseudoElement; + $3.lower(); + $$->m_value = atomicString($3); + CSSSelector::PseudoType type = $$->pseudoType(); + if (type == CSSSelector::PseudoUnknown) + $$ = 0; + else if (type == CSSSelector::PseudoFirstLine) { + CSSParser* p = static_cast(parser); + if (Document* doc = p->document()) + doc->setUsesFirstLineRules(true); + } + } + // used by :lang + | ':' FUNCTION IDENT ')' { + $$ = static_cast(parser)->createFloatingSelector(); + $$->m_match = CSSSelector::PseudoClass; + $$->m_argument = atomicString($3); + $2.lower(); + $$->m_value = atomicString($2); + if ($$->pseudoType() == CSSSelector::PseudoUnknown) + $$ = 0; + } + // used by :not + | ':' NOTFUNCTION maybe_space simple_selector ')' { + if (!$4) + $$ = 0; + else { + CSSParser* p = static_cast(parser); + $$ = p->createFloatingSelector(); + $$->m_match = CSSSelector::PseudoClass; + $$->m_simpleSelector = p->sinkFloatingSelector($4); + $2.lower(); + $$->m_value = atomicString($2); + } + } + ; + +declaration_list: + declaration { + $$ = $1; + } + | decl_list declaration { + $$ = $1; + if ( $2 ) + $$ = $2; + } + | decl_list { + $$ = $1; + } + | error invalid_block_list error { + $$ = false; + } + | error { + $$ = false; + } + | decl_list error { + $$ = $1; + } + | decl_list invalid_block_list { + $$ = $1; + } + ; + +decl_list: + declaration ';' maybe_space { + $$ = $1; + } + | declaration invalid_block_list ';' maybe_space { + $$ = false; + } + | error ';' maybe_space { + $$ = false; + } + | error invalid_block_list error ';' maybe_space { + $$ = false; + } + | decl_list declaration ';' maybe_space { + $$ = $1; + if ($2) + $$ = $2; + } + | decl_list error ';' maybe_space { + $$ = $1; + } + | decl_list error invalid_block_list error ';' maybe_space { + $$ = $1; + } + ; + +declaration: + property ':' maybe_space expr prio { + $$ = false; + CSSParser* p = static_cast(parser); + if ($1 && $4) { + p->valueList = p->sinkFloatingValueList($4); + int oldParsedProperties = p->numParsedProperties; + $$ = p->parseValue($1, $5); + if (!$$) + p->rollbackLastProperties(p->numParsedProperties - oldParsedProperties); + delete p->valueList; + p->valueList = 0; + } + } + | + property error { + $$ = false; + } + | + property ':' maybe_space error expr prio { + /* The default movable type template has letter-spacing: .none; Handle this by looking for + error tokens at the start of an expr, recover the expr and then treat as an error, cleaning + up and deleting the shifted expr. */ + $$ = false; + } + | + property ':' maybe_space expr prio error { + /* When we encounter something like p {color: red !important fail;} we should drop the declaration */ + $$ = false; + } + | + IMPORTANT_SYM maybe_space { + /* Handle this case: div { text-align: center; !important } Just reduce away the stray !important. */ + $$ = false; + } + | + property ':' maybe_space { + /* div { font-family: } Just reduce away this property with no value. */ + $$ = false; + } + | + property ':' maybe_space error { + /* if we come across rules with invalid values like this case: p { weight: *; }, just discard the rule */ + $$ = false; + } + | + property invalid_block { + /* if we come across: div { color{;color:maroon} }, ignore everything within curly brackets */ + $$ = false; + } + ; + +property: + IDENT maybe_space { + $1.lower(); + DeprecatedString str = deprecatedString($1); + const char* s = str.ascii(); + int l = str.length(); + $$ = getPropertyID(s, l); +#if ENABLE(SVG) + if ($$ == 0) + $$ = SVG::getSVGCSSPropertyID(s, l); +#endif + } + ; + +prio: + IMPORTANT_SYM maybe_space { $$ = true; } + | /* empty */ { $$ = false; } + ; + +expr: + term { + CSSParser* p = static_cast(parser); + $$ = p->createFloatingValueList(); + $$->addValue(p->sinkFloatingValue($1)); + } + | expr operator term { + CSSParser* p = static_cast(parser); + $$ = $1; + if ($$) { + if ($2) { + Value v; + v.id = 0; + v.unit = Value::Operator; + v.iValue = $2; + $$->addValue(v); + } + $$->addValue(p->sinkFloatingValue($3)); + } + } + | expr error { + $$ = 0; + } + ; + +operator: + '/' maybe_space { + $$ = '/'; + } + | ',' maybe_space { + $$ = ','; + } + | /* empty */ { + $$ = 0; + } + ; + +term: + unary_term { $$ = $1; } + | unary_operator unary_term { $$ = $2; $$.fValue *= $1; } + | STRING maybe_space { $$.id = 0; $$.string = $1; $$.unit = CSSPrimitiveValue::CSS_STRING; } + | IDENT maybe_space { + DeprecatedString str = deprecatedString($1); + $$.id = getValueID(str.lower().latin1(), str.length()); +#if ENABLE(SVG) + if ($$.id == 0) + $$.id = SVG::getSVGCSSValueID(str.lower().latin1(), str.length()); +#endif + $$.unit = CSSPrimitiveValue::CSS_IDENT; + $$.string = $1; + } + /* We might need to actually parse the number from a dimension, but we can't just put something that uses $$.string into unary_term. */ + | DIMEN maybe_space { $$.id = 0; $$.string = $1; $$.unit = CSSPrimitiveValue::CSS_DIMENSION } + | unary_operator DIMEN maybe_space { $$.id = 0; $$.string = $2; $$.unit = CSSPrimitiveValue::CSS_DIMENSION } + | URI maybe_space { $$.id = 0; $$.string = $1; $$.unit = CSSPrimitiveValue::CSS_URI; } + | UNICODERANGE maybe_space { $$.id = 0; $$.iValue = 0; $$.unit = CSSPrimitiveValue::CSS_UNKNOWN;/* ### */ } + | hexcolor { $$.id = 0; $$.string = $1; $$.unit = CSSPrimitiveValue::CSS_RGBCOLOR; } + | '#' maybe_space { $$.id = 0; $$.string = ParseString(); $$.unit = CSSPrimitiveValue::CSS_RGBCOLOR; } /* Handle error case: "color: #;" */ +/* FIXME: according to the specs a function can have a unary_operator in front. I know no case where this makes sense */ + | function { + $$ = $1; + } + ; + +unary_term: + INTEGER maybe_space { $$.id = 0; $$.isInt = true; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_NUMBER; } + | FLOATTOKEN maybe_space { $$.id = 0; $$.isInt = false; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_NUMBER; } + | PERCENTAGE maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_PERCENTAGE; } + | PXS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_PX; } + | CMS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_CM; } + | MMS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_MM; } + | INS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_IN; } + | PTS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_PT; } + | PCS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_PC; } + | DEGS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_DEG; } + | RADS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_RAD; } + | GRADS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_GRAD; } + | MSECS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_MS; } + | SECS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_S; } + | HERZ maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_HZ; } + | KHERZ maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_KHZ; } + | EMS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_EMS; } + | QEMS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = Value::Q_EMS; } + | EXS maybe_space { $$.id = 0; $$.fValue = $1; $$.unit = CSSPrimitiveValue::CSS_EXS; } + ; + + +function: + FUNCTION maybe_space expr ')' maybe_space { + CSSParser* p = static_cast(parser); + Function* f = p->createFloatingFunction(); + f->name = $1; + f->args = p->sinkFloatingValueList($3); + $$.id = 0; + $$.unit = Value::Function; + $$.function = f; + } | + FUNCTION maybe_space error { + CSSParser* p = static_cast(parser); + Function* f = p->createFloatingFunction(); + f->name = $1; + f->args = 0; + $$.id = 0; + $$.unit = Value::Function; + $$.function = f; + } + ; +/* + * There is a constraint on the color that it must + * have either 3 or 6 hex-digits (i.e., [0-9a-fA-F]) + * after the "#"; e.g., "#000" is OK, but "#abcd" is not. + */ +hexcolor: + HEX maybe_space { $$ = $1; } + | IDSEL maybe_space { $$ = $1; } + ; + + +/* error handling rules */ + +invalid_at: + '@' error invalid_block { + $$ = 0; + } + | '@' error ';' { + $$ = 0; + } + ; + +invalid_import: + import { + $$ = 0; + } + ; + +invalid_rule: + error invalid_block { + $$ = 0; + } +/* + Seems like the two rules below are trying too much and violating + http://www.hixie.ch/tests/evil/mixed/csserrorhandling.html + + | error ';' { + $$ = 0; + } + | error '}' { + $$ = 0; + } +*/ + ; + +invalid_block: + '{' error invalid_block_list error '}' + | '{' error '}' + ; + +invalid_block_list: + invalid_block + | invalid_block_list error invalid_block +; + +%%