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CSS3Parser.jj
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CSS3Parser.jj
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/*
* Copyright (c) 2019-2024 Ronald Brill.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
options {
IGNORE_CASE = true;
STATIC = false;
UNICODE_INPUT = true;
USER_CHAR_STREAM = true;
// DEBUG_TOKEN_MANAGER = true;
// DEBUG_PARSER = true;
JDK_VERSION = "1.8";
// JAVA_TEMPLATE_TYPE = "modern"
}
PARSER_BEGIN(CSS3Parser)
package org.htmlunit.cssparser.parser.javacc;
import java.util.LinkedList;
import java.util.Locale;
import org.htmlunit.cssparser.dom.CSSValueImpl;
import org.htmlunit.cssparser.dom.Property;
import org.htmlunit.cssparser.parser.AbstractCSSParser;
import org.htmlunit.cssparser.parser.CSSParseException;
import org.htmlunit.cssparser.parser.LexicalUnit;
import org.htmlunit.cssparser.parser.LexicalUnitImpl;
import org.htmlunit.cssparser.parser.LexicalUnit.LexicalUnitType;
import org.htmlunit.cssparser.parser.Locatable;
import org.htmlunit.cssparser.parser.Locator;
import org.htmlunit.cssparser.parser.condition.AttributeCondition;
import org.htmlunit.cssparser.parser.condition.BeginHyphenAttributeCondition;
import org.htmlunit.cssparser.parser.condition.ClassCondition;
import org.htmlunit.cssparser.parser.condition.Condition;
import org.htmlunit.cssparser.parser.condition.IdCondition;
import org.htmlunit.cssparser.parser.condition.LangCondition;
import org.htmlunit.cssparser.parser.condition.NotPseudoClassCondition;
import org.htmlunit.cssparser.parser.condition.OneOfAttributeCondition;
import org.htmlunit.cssparser.parser.condition.PrefixAttributeCondition;
import org.htmlunit.cssparser.parser.condition.PseudoClassCondition;
import org.htmlunit.cssparser.parser.condition.SubstringAttributeCondition;
import org.htmlunit.cssparser.parser.condition.SuffixAttributeCondition;
import org.htmlunit.cssparser.parser.media.MediaQuery;
import org.htmlunit.cssparser.parser.media.MediaQueryList;
import org.htmlunit.cssparser.parser.selector.ChildSelector;
import org.htmlunit.cssparser.parser.selector.DescendantSelector;
import org.htmlunit.cssparser.parser.selector.DirectAdjacentSelector;
import org.htmlunit.cssparser.parser.selector.ElementSelector;
import org.htmlunit.cssparser.parser.selector.GeneralAdjacentSelector;
import org.htmlunit.cssparser.parser.selector.PseudoElementSelector;
import org.htmlunit.cssparser.parser.selector.Selector;
import org.htmlunit.cssparser.parser.selector.SelectorList;
import org.htmlunit.cssparser.parser.selector.SelectorListImpl;
import org.htmlunit.cssparser.parser.selector.SimpleSelector;
import org.htmlunit.cssparser.util.ParserUtils;
/**
* @author David Schweinsberg
* @author waldbaer
* @author Ahmed Ashour
* @author Ronald Brill
*/
public class CSS3Parser extends AbstractCSSParser {
public CSS3Parser() {
this((CharStream) null);
}
public String getParserVersion() {
return "http://www.w3.org/Style/CSS/";
}
protected String getGrammarUri()
{
return "http://www.w3.org/TR/WD-css3-syntax-20030813";
}
}
PARSER_END(CSS3Parser)
TOKEN_MGR_DECLS :
{
}
<DEFAULT> TOKEN :
{
// s [ \t\r\n\f]+
// {s} {return S;}
< S: ( " "|"\t"|"\r"|"\n"|"\f" )+ >
// w {s}?
// | < W: ( <S> )? >
}
<DEFAULT> MORE :
{
< "/*" > : COMMENT
}
<COMMENT> SKIP :
{
< "*/" > : DEFAULT
}
<COMMENT> MORE :
{
< ~[] > : COMMENT
}
<DEFAULT> TOKEN :
{
// h [0-9a-f]
< #H: ["0"-"9","a"-"f"] >
| < #HNUM: <H> | <H><H> | <H><H><H> | <H><H><H><H> | <H><H><H><H><H> | <H><H><H><H><H><H> >
// nonascii [\200-\377]
// The two occurrences of "\377" represent the highest character number that
// current versions of Flex can deal with (decimal 255). They should be read as
// "\4177777" (decimal 1114111), which is the highest possible code point in
// Unicode/ISO-10646.
// Limitation: This parser can only handle Unicode characters up to \uFFFF
// (decimal 65535).
| < #NONASCII: ["\u0080"-"\uFFFF"] >
// unicode \\{h}{1,6}(\r\n|[ \t\r\n\f])?
| < #UNICODE: "\\" <HNUM> ( "\r\n" | [" ","\t","\r","\n","\f"] )? >
// escape {unicode}|\\[^\r\n\f0-9a-f]
| < #ESCAPE: <UNICODE> | ( "\\" ~["\r","\n","\f","0"-"9","a"-"f"] ) >
// nmstart [_a-z]|{nonascii}|{escape}
| < #NMSTART: ["_","a"-"z"] | <NONASCII> | <ESCAPE> >
// nmchar [_a-z0-9-]|{nonascii}|{escape}
| < #NMCHAR: ["_","a"-"z","0"-"9","-"] | <NONASCII> | <ESCAPE> >
// nl \n|\r\n|\r|\f
| < #NL: "\n" | "\r\n" | "\r" | "\f" >
// string1 \"([^\n\r\f\\"]|\\{nl}|{escape})*\"
| < #STRING1: ( ~["\n","\r","\f","\\","\""] | "\\" <NL> | <ESCAPE> )* >
// string2 \'([^\n\r\f\\']|\\{nl}|{escape})*\'
| < #STRING2: ( ~["\n","\r","\f","\\","\'"] | "\\" <NL> | <ESCAPE> )* >
// comment \/\*[^*]*\*+([^/*][^*]*\*+)*\/
| < #COMMENT_: "/" "*" ( ~["*"] )* ("*")+ ( ~["/","*"] ( ~["*"] )* ( "*" )+ )* "/">
| < AND: "and" >
| < NOT: "not" >
| < ONLY: "only" >
// {num} {return NUMBER;}
| < NUMBER: <NUM> >
| < INHERIT: "inherit" >
// ident -?{nmstart}{nmchar}*
// {ident} {return IDENT;}
| < IDENT: (< MINUS >)? <NMSTART> ( <NMCHAR> )* >
// name {nmchar}+
| < #NAME: ( <NMCHAR> )+ >
// num [0-9]+|[0-9]*"."[0-9]+
| < NUM: ( ( ["0"-"9"] )+ | ( ["0"-"9"] )* "." ( ["0"-"9"] )+ ) (["e", "E"] ( ["+", "-"] )? ( ["0"-"9"] )+)? >
// string {string1}|{string2}
// {string} {return STRING;}
| < STRING: ( "\"" <STRING1> "\"" ) | ( "\'" <STRING2> "\'" ) > { matchedToken.image = ParserUtils.trimBy(image, 1, 1); }
// url ([!#$%&*-~]|{nonascii}|{escape})*
| < #URL: ( ["!","#","$","%","&","*"-"[","]"-"~"] | <NONASCII> | <ESCAPE> )* >
// A a|\\0{0,4}(41|61)(\r\n|[ \t\r\n\f])?
| < #A_LETTER: "a" | "\\" ("0")? ("0")? ("0")? ("0")? ( "41" | "61" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? >
// C c|\\0{0,4}(43|63)(\r\n|[ \t\r\n\f])?
| < #C_LETTER: "c" | "\\" ("0")? ("0")? ("0")? ("0")? ( "43" | "63" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? >
// D d|\\0{0,4}(44|64)(\r\n|[ \t\r\n\f])?
| < #D_LETTER: "d" | "\\" ("0")? ("0")? ("0")? ("0")? ( "44" | "64" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? >
// E e|\\0{0,4}(45|65)(\r\n|[ \t\r\n\f])?
| < #E_LETTER: "e" | "\\" ("0")? ("0")? ("0")? ("0")? ( "45" | "65" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? >
// F f|\\0{0,4}(46|66)(\r\n|[ \t\r\n\f])?
| < #F_LETTER: "f" | "\\" ("0")? ("0")? ("0")? ("0")? ( "46" | "66" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? >
// G g|\\0{0,4}(47|67)(\r\n|[ \t\r\n\f])?|\\g
| < #G_LETTER: "g" | "\\" ("0")? ("0")? ("0")? ("0")? ( "47" | "67" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "g" >
// H h|\\0{0,4}(48|68)(\r\n|[ \t\r\n\f])?|\\h
| < #H_LETTER: "h" | "\\" ("0")? ("0")? ("0")? ("0")? ( "48" | "68" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "h" >
// I i|\\0{0,4}(49|69)(\r\n|[ \t\r\n\f])?|\\i
| < #I_LETTER: "i" | "\\" ("0")? ("0")? ("0")? ("0")? ( "49" | "69" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "i" >
// K k|\\0{0,4}(4b|6b)(\r\n|[ \t\r\n\f])?|\\k
| < #K_LETTER: "k" | "\\" ("0")? ("0")? ("0")? ("0")? ( "4b" | "6b" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "k" >
// L l|\\0{0,4}(4c|6c)(\r\n|[ \t\r\n\f])?|\\l
| < #L_LETTER: "l" | "\\" ("0")? ("0")? ("0")? ("0")? ( "4c" | "6c" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "l" >
// M m|\\0{0,4}(4d|6d)(\r\n|[ \t\r\n\f])?|\\m
| < #M_LETTER: "m" | "\\" ("0")? ("0")? ("0")? ("0")? ( "4d" | "6d" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "m" >
// N n|\\0{0,4}(4e|6e)(\r\n|[ \t\r\n\f])?|\\n
| < #N_LETTER: "n" | "\\" ("0")? ("0")? ("0")? ("0")? ( "4e" | "6e" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "n" >
// O o|\\0{0,4}(51|71)(\r\n|[ \t\r\n\f])?|\\o
| < #O_LETTER: "o" | "\\" ("0")? ("0")? ("0")? ("0")? ( "51" | "71" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "o" >
// P p|\\0{0,4}(50|70)(\r\n|[ \t\r\n\f])?|\\p
| < #P_LETTER: "p" | "\\" ("0")? ("0")? ("0")? ("0")? ( "50" | "70" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "p" >
// R r|\\0{0,4}(52|72)(\r\n|[ \t\r\n\f])?|\\r
| < #R_LETTER: "r" | "\\" ("0")? ("0")? ("0")? ("0")? ( "52" | "72" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "r" >
// S s|\\0{0,4}(53|73)(\r\n|[ \t\r\n\f])?|\\s
| < #S_LETTER: "s" | "\\" ("0")? ("0")? ("0")? ("0")? ( "53" | "73" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "s" >
// T t|\\0{0,4}(54|74)(\r\n|[ \t\r\n\f])?|\\t
| < #T_LETTER: "t" | "\\" ("0")? ("0")? ("0")? ("0")? ( "54" | "74" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "t" >
// U v|\\0{0,4}(55|76)(\r\n|[ \t\r\n\f])?|\\v
| < #U_LETTER: "u" | "\\" ("0")? ("0")? ("0")? ("0")? ( "55" | "75" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "u" >
// X x|\\0{0,4}(58|78)(\r\n|[ \t\r\n\f])?|\\x
| < #X_LETTER: "x" | "\\" ("0")? ("0")? ("0")? ("0")? ( "58" | "78" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "x" >
// Z z|\\0{0,4}(5a|7a)(\r\n|[ \t\r\n\f])?|\\z
| < #Z_LETTER: "z" | "\\" ("0")? ("0")? ("0")? ("0")? ( "5a" | "7a" ) ( "\r\n" | [ " ", "\t", "\r", "\n", "\f"])? | "\\" "z" >
// "<!--" {return CDO;}
| < CDO: "<!--" >
// "-->" {return CDC;}
| < CDC: "-->" >
// "~=" {return INCLUDES;}
| < INCLUDES: "~=" >
// "|=" {return DASHMATCH;}
| < DASHMATCH: "|=" >
// "^=" {return PREFIXMATCH;}
| < PREFIXMATCH: "^=" >
// "$=" {return SUFFIXMATCH;}
| < SUFFIXMATCH: "$=" >
// "*=" {return SUBSTRINGMATCH;}
| < SUBSTRINGMATCH: "*=" >
// {w}"{" {return LBRACE;}
| < LBRACE: "{" >
| < RBRACE: "}" >
| < LROUND: "(" >
| < RROUND: ")" >
| < DOT: "." >
| < SEMICOLON: ";" >
| < COLON: ":" >
| < ASTERISK: "*" >
| < SLASH: "/" >
| < MINUS: "-" >
| < EQUALS: "=" >
| < LSQUARE: "[" >
| < RSQUARE: "]" >
// {w}"+" {return PLUS;}
| < PLUS: "+" >
// {w}">" {return GREATER;}
| < GREATER: ">" >
// {w}"~" {return TILDE;}
| < TILDE: "~" >
// {w}"," {return COMMA;}
| < COMMA: "," >
// "#"{name} {return HASH;}
| < HASH: "#" <NAME> >
// @{I}{M}{P}{O}{R}{T} {return IMPORT_SYM;}
| < IMPORT_SYM: "@" <I_LETTER> <M_LETTER> <P_LETTER> <O_LETTER> <R_LETTER> <T_LETTER>>
// @{P}{A}{G}{E} {return PAGE_SYM;}
| < PAGE_SYM: "@" <P_LETTER> <A_LETTER> <G_LETTER> <E_LETTER> >
// @{M}{E}{D}{I}{A} {return MEDIA_SYM;}
| < MEDIA_SYM: "@" <M_LETTER> <E_LETTER> <D_LETTER> <I_LETTER> <A_LETTER> >
// "@{F}{O}{N}{T}-{F}{A}{C}{E}" {return FONT_FACE_SYM;}
| < FONT_FACE_SYM: "@" <F_LETTER> <O_LETTER> <N_LETTER> <T_LETTER> < MINUS > <F_LETTER> <A_LETTER> <C_LETTER> <E_LETTER> >
// @{C}{H}{A}{R}{S}{E}{T} {return CHARSET_SYM;}
| < CHARSET_SYM: "@" <C_LETTER> <H_LETTER> <A_LETTER> <R_LETTER> <S_LETTER> <E_LETTER> <T_LETTER> >
// "!"({w}|{comment})*{I}{M}{P}{O}{R}{T}{A}{N}{T} {return IMPORTANT_SYM;}
| < IMPORTANT_SYM: "!" ( <S> | <COMMENT_> )* <I_LETTER> <M_LETTER> <P_LETTER> <O_LETTER> <R_LETTER> <T_LETTER> <A_LETTER> <N_LETTER> <T_LETTER> >
// {num}{E}{M} {return EMS;}
| < EMS: <NUM> <E_LETTER> <M_LETTER> > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{R}{E}{M} {return REM;}
| < REM: <NUM> "rem" > { matchedToken.image = ParserUtils.trimBy(image, 0, 3); }
// {num}{E}{X} {return EXS;}
| < EXS: <NUM> <E_LETTER> <X_LETTER> > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{C}{H} {return CH;}
| < CH: <NUM> "ch" > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{V}{W} {return VW;}
| < VW: <NUM> "vw" > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{V}{H} {return VH;}
| < VH: <NUM> "vh" > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{V}{M}{I}{N} {return VMIN;}
| < VMIN: <NUM> "vmin" > { matchedToken.image = ParserUtils.trimBy(image, 0, 4); }
// {num}{V}{M}{I}{N} {return VMAX;}
| < VMAX: <NUM> "vmax" > { matchedToken.image = ParserUtils.trimBy(image, 0, 4); }
// {num}{P}{X} {return LENGTH;}
| < LENGTH_PX: <NUM> "px" > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{C}{M} {return LENGTH;}
| < LENGTH_CM: <NUM> "cm" > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{M}{M} {return LENGTH;}
| < LENGTH_MM: <NUM> "mm" > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{I}{N} {return LENGTH;}
| < LENGTH_IN: <NUM> "in" > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{P}{T} {return LENGTH;}
| < LENGTH_PT: <NUM> "pt" > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{P}{C} {return LENGTH;}
| < LENGTH_PC: <NUM> "pc" > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{Q} {return LENGTH;}
| < LENGTH_Q: <NUM> "Q" > { matchedToken.image = ParserUtils.trimBy(image, 0, 1); }
// {num}{D}{E}{G} {return ANGLE;}
| < ANGLE_DEG: <NUM> "deg" > { matchedToken.image = ParserUtils.trimBy(image, 0, 3); }
// {num}{R}{A}{D} {return ANGLE;}
| < ANGLE_RAD: <NUM> "rad" > { matchedToken.image = ParserUtils.trimBy(image, 0, 3); }
// {num}{G}{R}{A}{D} {return ANGLE;}
| < ANGLE_GRAD: <NUM> "grad" > { matchedToken.image = ParserUtils.trimBy(image, 0, 4); }
// {num}{T}{U}{R}{N} {return ANGLE;}
| < ANGLE_TURN: <NUM> "turn" > { matchedToken.image = ParserUtils.trimBy(image, 0, 4); }
// {num}{M}{S} {return TIME;}
| < TIME_MS: <NUM> <M_LETTER> <S_LETTER> > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{S} {return TIME;}
| < TIME_S: <NUM> <S_LETTER> > { matchedToken.image = ParserUtils.trimBy(image, 0, 1); }
// {num}{H}{Z} {return FREQ;}
| < FREQ_HZ: <NUM> <H_LETTER> <Z_LETTER> > { matchedToken.image = ParserUtils.trimBy(image, 0, 2); }
// {num}{K}{H}{Z} {return FREQ;}
| < FREQ_KHZ: <NUM> <K_LETTER> <H_LETTER> <Z_LETTER> > { matchedToken.image = ParserUtils.trimBy(image, 0, 3); }
// {num}{D}{P}{I} {return RESOLUTION;}
| < RESOLUTION_DPI: <NUM> "dpi" > { matchedToken.image = ParserUtils.trimBy(image, 0, 3); }
// {num}{D}{P}{C}{M} {return RESOLUTION;}
| < RESOLUTION_DPCM: <NUM> "dpcm" > { matchedToken.image = ParserUtils.trimBy(image, 0, 4); }
// {num}% {return PERCENTAGE;}
| < PERCENTAGE: <NUM> "%" > { matchedToken.image = ParserUtils.trimBy(image, 0, 1); }
// {num}{ident} {return DIMENSION;}
| < DIMENSION: <NUM> <NMSTART> ( ["a"-"z","0"-"9"] | <NONASCII> | <ESCAPE> )* >
| < #H_PLACEHOLDER: (<H> | "?"){1,6} >
| < UNICODE_RANGE: "u+" <H_PLACEHOLDER > (< MINUS > < H_PLACEHOLDER >)? >
// "url("{w}{string}{w}")" {return URI;}
// "url("{w}{url}{w}")" {return URI;}
| < URI: "url" <LROUND> ( <S> )* ( <STRING> | <URL> ) ( <S> )* <RROUND> > { matchedToken.image = ParserUtils.trimUrl(image); }
// {N}{O}{T} "(" {return FUNCTION_NOT;}
| < FUNCTION_NOT: "not" <LROUND> >
// {L}{A}{N}{G} "(" {return FUNCTION_LANG;}
| < FUNCTION_LANG: "lang" <LROUND> >
// {C}{A}{L}{C} "(" {return FUNCTION_CALC;}
| < FUNCTION_CALC: "calc" <LROUND> >
// {V}{A}{R} "(" {return FUNCTION_VAR;}
| < FUNCTION_VAR: "var" <LROUND> >
| < FUNCTION_RGB: "rgb" ("a")? <LROUND> >
| < FUNCTION_HSL: "hsl" ("a")? <LROUND> >
| < CUSTOM_PROPERTY_NAME: < MINUS > <MINUS > <NMSTART> ( <NMCHAR> )* >
// {ident} "(" {return FUNCTION;}
| < FUNCTION: <IDENT> <LROUND> >
| < ATKEYWORD: "@" <IDENT> >
}
<*> TOKEN:
{
< UNKNOWN: ~[] >
{
// System.err.println("Illegal character : " + image.toString());
}
}
//
// stylesheet
// : [ CHARSET_SYM STRING ';' ]?
// [S|CDO|CDC]* [ import [S|CDO|CDC]* ]*
// [ [ ruleset | media | page | font_face ] [S|CDO|CDC]* ]*
// ;
//
void styleSheet() :
{
}
{
try
{
{ handleStartDocument(); }
styleSheetRuleList()
<EOF>
}
finally
{
handleEndDocument();
}
}
void styleSheetRuleList() :
{
boolean ruleFound = false;
}
{
( <S> | <CDO> | <CDC> )*
(
charsetRule()
( <S> | <CDO> | <CDC> )*
)?
(
(
(
importRule(ruleFound)
|
(
styleRule() | mediaRule() | pageRule() | fontFaceRule() | unknownAtRule()
)
{
ruleFound = true;
}
)
|
(
// skip until the next RBRACE
{ ParseException e = generateParseException(); }
invalidRule()
{
Token t = getNextToken();
boolean charsetProcessed = false;
if (t.kind == CHARSET_SYM) {
t = getNextToken();
if (t.kind == S) {
t = getNextToken();
if (t.kind == STRING) {
t = getNextToken();
if (t.kind == SEMICOLON) {
getNextToken();
charsetProcessed = true;
}
}
}
CSSParseException cpe = toCSSParseException("misplacedCharsetRule", e);
getErrorHandler().error(cpe);
getErrorHandler().warning(createSkipWarning("ignoringRule", cpe));
}
if (!charsetProcessed) {
if (t.kind == EOF) {
return;
}
CSSParseException cpe = toCSSParseException("invalidRule", e);
getErrorHandler().error(cpe);
getErrorHandler().warning(createSkipWarning("ignoringRule", cpe));
while (t.kind != RBRACE && t.kind != EOF ) {
t = getNextToken();
}
if (t.kind == EOF) {
return;
}
}
}
)
)
( <S> | <CDO> | <CDC> )*
)*
}
JAVACODE
void invalidRule()
{
}
//
// This is used by ASTStyleSheet.insertRule to parse a single rule
//
void styleSheetRuleSingle() :
{
}
{
( <S> )*
( charsetRule() | importRule(false) | styleRule() | mediaRule() | pageRule() | fontFaceRule() | unknownAtRule() )
( <S> )*
}
void charsetRule() :
{
Token t;
Locator locator;
}
{
try
{
<CHARSET_SYM>
{
locator = createLocator(token);
}
<S>
t = <STRING>
<SEMICOLON>
{
handleCharset(t.toString(), locator);
}
}
catch (ParseException e)
{
getErrorHandler().error(toCSSParseException("invalidCharsetRule", e));
}
}
void unknownAtRule() :
{
String s;
Locator locator;
}
{
try
{
<ATKEYWORD>
{
locator = createLocator(token);
s = skip();
handleIgnorableAtRule(s, locator);
}
}
catch (ParseException e)
{
getErrorHandler().error(toCSSParseException("invalidUnknownRule", generateParseException()));
}
}
//
// import
// : IMPORT_SYM S*
// [STRING|URI] S* [ medium [ COMMA S* medium]* ]? ';' S*
// ;
//
void importRule(final boolean nonImportRuleFoundBefore) :
{
Token t;
MediaQueryList ml = new MediaQueryList();
Locator locator;
}
{
try
{
{
ParseException e = null;
if (nonImportRuleFoundBefore)
{
e = generateParseException();
}
}
<IMPORT_SYM>
{
locator = createLocator(token);
}
( <S> )*
( t = <STRING> | t = <URI> ) ( <S> )*
( mediaList(ml) )?
<SEMICOLON>
{
if (nonImportRuleFoundBefore)
{
getErrorHandler().error(toCSSParseException("invalidImportRuleIgnored2", e));
}
else
{
handleImportStyle(unescape(t.image, false), ml, null, locator);
}
}
}
catch (CSSParseException e)
{
getErrorHandler().error(e);
error_skipAtRule();
}
catch (ParseException e)
{
getErrorHandler().error(toCSSParseException("invalidImportRule", e));
error_skipAtRule();
}
}
//
// media
// : MEDIA_SYM S* medium [ COMMA S* medium ]* '{' S* ruleset* '}' S*
// ;
//
void mediaRule() :
{
boolean start = false;
MediaQueryList ml = new MediaQueryList();
Locator locator;
}
{
try
{
<MEDIA_SYM>
{
locator = createLocator(token);
}
( <S> )*
mediaList(ml)
{
start = true;
handleStartMedia(ml, locator);
}
<LBRACE> ( <S> )*
( mediaRuleList() )?
<RBRACE>
}
catch (CSSParseException e)
{
getErrorHandler().error(e);
error_skipblock("ignoringRule", e);
}
catch(ParseException e)
{
CSSParseException cpe = toCSSParseException("invalidMediaRule", e);
getErrorHandler().error(cpe);
error_skipblock("ignoringRule", cpe);
}
finally
{
if (start) {
handleEndMedia(ml);
}
}
}
void mediaList(MediaQueryList ml) :
{
MediaQuery mq;
}
{
try
{
mq = mediaQuery()
{
ml.setLocator(createLocator(token));
}
( <COMMA> ( <S> )* { ml.add(mq); } mq = mediaQuery() )*
{ ml.add(mq); }
}
catch(ParseException e)
{
throw toCSSParseException("invalidMediaList", e);
}
}
//
// media_query
// : [ONLY | NOT]? S* media_type S* [ AND S* expression ]*
// | expression [ AND S* expression ]*
// ;
//
MediaQuery mediaQuery() :
{
String s;
MediaQuery mq;
Property p;
boolean only = false;
boolean not = false;
}
{
(
(
(
(
<ONLY> { only = true; }
|
<NOT> { not = true; }
) ( <S> )*
)?
s = medium()
{ mq = new MediaQuery(s, only, not); mq.setLocator(createLocator(token)); }
(
<AND> ( <S> )*
p = mediaExpression()
{
mq.addMediaProperty(p);
}
)*
)
|
(
p = mediaExpression()
{
mq = new MediaQuery(null, only, not);
mq.setLocator(createLocator(token));
mq.addMediaProperty(p);
}
(
<AND> ( <S> )*
p = mediaExpression()
{
mq.addMediaProperty(p);
}
)*
)
)
{ return mq; }
}
//
// expression
// : '(' S* media_feature S* [ ':' S* expr ]? ')' S*
// ;
//
Property mediaExpression() :
{
String p;
LexicalUnit e = null;
Property prop;
Token t;
}
{
<LROUND>
( <S> )*
( t = <IDENT> ( <S> )* { p = unescape(t.image, false); }
| t = <CUSTOM_PROPERTY_NAME> ( <S> )* { p = unescape(t.image, false); }
)
(
<COLON> ( <S> )*
e = expr()
)?
<RROUND>
( <S> )*
{
if(e==null)
{
prop = new Property(p, null, false);
}
else
{
prop = new Property(p, new CSSValueImpl(e), false);
}
return prop;
}
}
void mediaRuleList() :
{
}
{
( ( styleRule() | mediaRule() | pageRule() | importRule(true) | unknownAtRule() ) ( <S> )* )+
}
//
// medium
// : IDENT S*
// ;
//
String medium() :
{
Token t;
}
{
t = <IDENT> ( <S> )*
{
return unescape(t.image, false);
}
}
//
// page
// : PAGE_SYM S* pseudo_page? S*
// '{' S* declaration [ ';' S* declaration ]* '}' S*
// ;
//
void pageRule() :
{
String sel = null;
boolean start = false;
Locator locator;
}
{
try {
<PAGE_SYM>
{
locator = createLocator(token);
}
( <S> )*
( sel = pageSelectorList() )?
<LBRACE> ( <S> )*
{
start = true;
handleStartPage(null, sel, locator);
}
styleDeclaration()
<RBRACE>
}
catch (CSSParseException e)
{
getErrorHandler().error(e);
error_skipblock("ignoringRule", e);
}
catch(ParseException e)
{
CSSParseException cpe = toCSSParseException("invalidPageRule", e);
getErrorHandler().error(cpe);
error_skipblock("ignoringRule", cpe);
}
finally {
if (start) {
handleEndPage(null, sel);
}
}
}
//
// pageSelectorList
// : [ pageSelector S* [ ',' pageSelector S* ]* ]?
// ;
//
String pageSelectorList() :
{
String sel;
LinkedList<String> selectors = new LinkedList<>();
}
{
sel = pageSelector() { selectors.add(sel); }
(
<COMMA> ( <S> )* sel = pageSelector() { selectors.add(sel); }
)*
{ return String.join(", ", selectors); }
}
//
// pageSelector
// : pseudoPage+ | IDENT pseudoPage*
// ;
//
String pageSelector() :
{
StringBuilder pseudos = new StringBuilder();
String pseudo;
Token ident;
}
{
(
pseudo = pseudoPage() { pseudos.append(pseudo); }
|
ident = <IDENT> { pseudos.append(unescape(ident.image, false)); }
)
( pseudo = pseudoPage() { pseudos.append(pseudo); } )*
( <S> )*
{ return pseudos.toString(); }
}
//
// pseudoPage
// : ':' IDENT
// ;
//
String pseudoPage() :
{
Token t;
}
{
<COLON> t = <IDENT> { return ":" + normalizeAndValidatePagePseudoClass(t); }
}
//
// font_face
// : FONT_FACE_SYM S*
// '{' S* declaration [ ';' S* declaration ]* '}' S*
// ;
//
void fontFaceRule() :
{
boolean start = false;
Locator locator;
}
{
try {
<FONT_FACE_SYM>
{
locator = createLocator(token);
}
( <S> )*
<LBRACE> ( <S> )* { start = true; handleStartFontFace(locator); }
styleDeclaration()
<RBRACE>
}
catch(ParseException e)
{
throw toCSSParseException("invalidFontFaceRule", e);
}
finally {
if (start) {
handleEndFontFace();
}
}
}
//
// operator
// : '/' S* | COMMA S* | /* empty */
// ;
//
LexicalUnit operator(LexicalUnit prev) :
{
}
{
<SLASH> ( <S> )* { return new LexicalUnitImpl(prev, LexicalUnitType.OPERATOR_SLASH); }
| <COMMA> ( <S> )* { return LexicalUnitImpl.createComma(prev); }
}
//
// combinator
// : PLUS S*
// | GREATER S*
// | S
// ;
//
char combinator() :
{
char c = ' ';
}
{
(
<PLUS> { c='+'; } ( <S> )*
| <GREATER> { c='>'; } ( <S> )*
| <TILDE> { c='~'; } ( <S> )*
| <S> ( ( <PLUS> { c='+'; } | <GREATER> { c='>'; } | <TILDE> { c='~'; } ) ( <S> )* )?
)
{ return c; }
}