[3848] | 1 | // License: GPL. For details, see LICENSE file.
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| 2 | options {
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| 3 | STATIC = false;
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[6521] | 4 | OUTPUT_DIRECTORY = "parsergen";
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[3848] | 5 | }
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| 6 |
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| 7 | PARSER_BEGIN(MapCSSParser)
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[4252] | 8 | package org.openstreetmap.josm.gui.mappaint.mapcss.parsergen;
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[3848] | 9 |
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[6970] | 10 | import java.io.InputStream;
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[3848] | 11 | import java.util.ArrayList;
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| 12 | import java.util.List;
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| 13 |
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[3967] | 14 | import org.openstreetmap.josm.gui.mappaint.Keyword;
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[3848] | 15 | import org.openstreetmap.josm.gui.mappaint.mapcss.Condition;
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[4069] | 16 | import org.openstreetmap.josm.gui.mappaint.mapcss.Condition.Context;
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[3848] | 17 | import org.openstreetmap.josm.gui.mappaint.mapcss.Expression;
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| 18 | import org.openstreetmap.josm.gui.mappaint.mapcss.Instruction;
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| 19 | import org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSRule;
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[7064] | 20 | import org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSRule.Declaration;
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[3848] | 21 | import org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSStyleSource;
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| 22 | import org.openstreetmap.josm.gui.mappaint.mapcss.Selector;
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[5705] | 23 | import org.openstreetmap.josm.gui.mappaint.mapcss.ExpressionFactory;
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| 24 | import org.openstreetmap.josm.gui.mappaint.mapcss.LiteralExpression;
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[4069] | 25 | import org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSException;
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[4011] | 26 | import org.openstreetmap.josm.gui.mappaint.mapcss.Selector.ChildOrParentSelector;
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[3902] | 27 | import org.openstreetmap.josm.gui.mappaint.mapcss.Selector.GeneralSelector;
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[4069] | 28 | import org.openstreetmap.josm.gui.mappaint.mapcss.Selector.LinkSelector;
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[6740] | 29 | import org.openstreetmap.josm.tools.ColorHelper;
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[3848] | 30 | import org.openstreetmap.josm.tools.Pair;
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[6248] | 31 | import org.openstreetmap.josm.Main;
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[3848] | 32 |
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[6970] | 33 | /**
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| 34 | * MapCSS parser.
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[6897] | 35 | *
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[6970] | 36 | * Contains two independent grammars:
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| 37 | * (a) the preprocessor and (b) the main mapcss parser.
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[6897] | 38 | *
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[6970] | 39 | * The preprocessor handles @media syntax. Basically this allows
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| 40 | * to write one style for different versions of JOSM (or different editors).
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| 41 | * When the @media condition is not fulfilled, it should simply skip over
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| 42 | * the whole section and not attempt to parse the possibly unknown
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| 43 | * grammar. It preserves whitespace and comments, in order to keep the
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| 44 | * line and column numbers in the error messages correct for the second pass.
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[6897] | 45 | *
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| 46 | */
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| 47 |
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[3848] | 48 | public class MapCSSParser {
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[3863] | 49 | MapCSSStyleSource sheet;
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[6970] | 50 | StringBuilder sb;
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[7064] | 51 | int declarationCounter;
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[6970] | 52 |
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| 53 | /**
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| 54 | * Nicer way to refer to a lexical state.
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| 55 | */
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| 56 | public static enum LexicalState {
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| 57 | PREPROCESSOR(0), /* the preprocessor */
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| 58 | DEFAULT(2); /* the main parser */
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| 59 |
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| 60 | int idx; // the integer, which javacc assigns to this state
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| 61 |
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| 62 | LexicalState(int idx) {
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| 63 | if (!this.name().equals(MapCSSParserTokenManager.lexStateNames[idx])) {
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| 64 | throw new RuntimeException();
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| 65 | }
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| 66 | this.idx = idx;
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| 67 | }
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| 68 | };
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| 69 |
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| 70 | /**
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| 71 | * Constructor which initializes the parser with a certain lexical state.
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| 72 | */
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| 73 | public MapCSSParser(InputStream in, String encoding, LexicalState initState) {
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| 74 | this(createTokenManager(in, encoding, initState));
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[7064] | 75 | declarationCounter = 0;
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[6970] | 76 | }
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| 77 |
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| 78 | protected static MapCSSParserTokenManager createTokenManager(InputStream in, String encoding, LexicalState initState) {
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| 79 | SimpleCharStream scs;
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| 80 | try {
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| 81 | scs = new SimpleCharStream(in, encoding, 1, 1);
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| 82 | } catch(java.io.UnsupportedEncodingException e) {
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| 83 | throw new RuntimeException(e);
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| 84 | }
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| 85 | return new MapCSSParserTokenManager(scs, initState.idx);
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| 86 | }
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[3848] | 87 | }
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| 88 | PARSER_END(MapCSSParser)
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| 89 |
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| 90 | /*************
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| 91 | * Token definitions
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[6970] | 92 | *
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| 93 | * Lexical states for the preprocessor: <PREPROCESSOR>, <PP_COMMENT>
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| 94 | * Lexical states for the main parser: <DEFAULT>, <COMMENT>
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[3848] | 95 | */
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[6970] | 96 |
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| 97 | <PREPROCESSOR>
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| 98 | TOKEN:
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| 99 | {
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| 100 | < PP_AND: "and" >
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| 101 | | < PP_NOT: "not" >
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| 102 | | < PP_MEDIA: "@media" >
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| 103 | | < PP_NEWLINECHAR: "\n" | "\r" | "\f" >
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| 104 | | < PP_WHITESPACE: " " | "\t" >
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| 105 | | < PP_COMMENT_START: "/*" > : PP_COMMENT
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| 106 | }
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[3848] | 107 |
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[6970] | 108 | <PP_COMMENT>
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| 109 | TOKEN:
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| 110 | {
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| 111 | < PP_COMMENT_END: "*/" > : PREPROCESSOR
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| 112 | }
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| 113 |
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| 114 | <PP_COMMENT>
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| 115 | MORE:
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| 116 | {
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| 117 | < ~[] >
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| 118 | }
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| 119 |
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[3848] | 120 | <DEFAULT>
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[6896] | 121 | TOKEN [IGNORE_CASE]:
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| 122 | {
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[6970] | 123 | /* Special keyword in some contexts, ordinary identifier in other contexts.
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| 124 | Use the parsing rule <code>ident()</code> to refer to a general
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| 125 | identifier, including "set". */
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| 126 | < SET: "set" >
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[6896] | 127 | }
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| 128 |
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[6970] | 129 | <DEFAULT,PREPROCESSOR>
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[3848] | 130 | TOKEN:
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| 131 | {
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[6896] | 132 | < IDENT: ["a"-"z","A"-"Z","_"] ( ["a"-"z","A"-"Z","_","-","0"-"9"] )* >
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[3848] | 133 | | < UINT: ["1"-"9"] ( ["0"-"9"] )* >
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[3876] | 134 | | < STRING: "\"" ( [" ","!","#"-"[","]"-"~","\u0080"-"\uFFFF"] | "\\\"" | "\\\\" )* "\"" >
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[7761] | 135 | | < #PREDEFINED: "\\" ["d","D","s","S","w","W","b","B","A","G","Z","z"] >
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[7115] | 136 | | < #REGEX_CHAR_WITHOUT_STAR: [" "-")","+"-".","0"-"[","]"-"~","\u0080"-"\uFFFF"] | "\\/" | "\\\\" | "\\[" | "\\]" | "\\+" | "\\." | "\\'" | "\\\"" | "\\(" | "\\)" |<PREDEFINED> >
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[3876] | 137 | | < REGEX: "/" <REGEX_CHAR_WITHOUT_STAR> ( <REGEX_CHAR_WITHOUT_STAR> | "*" )* "/" >
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[6970] | 138 | | < LBRACE: "{" >
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| 139 | | < RBRACE: "}" >
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| 140 | | < LPAR: "(" >
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| 141 | | < RPAR: ")" >
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[7277] | 142 | | < COMMA: "," >
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[6970] | 143 | | < COLON: ":" >
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| 144 | }
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| 145 |
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| 146 | <PREPROCESSOR>
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| 147 | TOKEN:
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| 148 | {
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| 149 | < PP_SOMETHING_ELSE : ~[] >
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| 150 | }
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| 151 |
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| 152 | <DEFAULT>
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| 153 | TOKEN:
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| 154 | {
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| 155 | < UFLOAT: ( ["0"-"9"] )+ ( "." ( ["0"-"9"] )+ )? >
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[3848] | 156 | | < #H: ["0"-"9","a"-"f","A"-"F"] >
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[6774] | 157 | | < HEXCOLOR: "#" ( <H><H><H><H><H><H><H><H> | <H><H><H><H><H><H> | <H><H><H> ) >
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[3848] | 158 | | < S: ( " " | "\t" | "\n" | "\r" | "\f" )+ >
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| 159 | | < STAR: "*" >
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| 160 | | < SLASH: "/" >
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| 161 | | < LSQUARE: "[" >
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| 162 | | < RSQUARE: "]" >
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[3867] | 163 | | < GREATER_EQUAL: ">=" >
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| 164 | | < LESS_EQUAL: "<=" >
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| 165 | | < GREATER: ">" >
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| 166 | | < LESS: "<" >
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[3848] | 167 | | < EQUAL: "=" >
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| 168 | | < EXCLAMATION: "!" >
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[3876] | 169 | | < TILDE: "~" >
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[3848] | 170 | | < DCOLON: "::" >
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| 171 | | < SEMICOLON: ";" >
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[3856] | 172 | | < PIPE: "|" >
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[3848] | 173 | | < PIPE_Z: "|z" >
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| 174 | | < PLUS: "+" >
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| 175 | | < MINUS: "-" >
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[3856] | 176 | | < AMPERSAND: "&" >
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| 177 | | < QUESTION: "?" >
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[3876] | 178 | | < DOLLAR: "$" >
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| 179 | | < CARET: "^" >
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[6560] | 180 | | < FULLSTOP: "." >
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[6609] | 181 | | < ELEMENT_OF: "∈" >
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[6613] | 182 | | < CROSSING: "⧉" >
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[3848] | 183 | | < COMMENT_START: "/*" > : COMMENT
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| 184 | | < UNEXPECTED_CHAR : ~[] > // avoid TokenMgrErrors because they are hard to recover from
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| 185 | }
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| 186 |
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| 187 | <COMMENT>
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| 188 | TOKEN:
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| 189 | {
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| 190 | < COMMENT_END: "*/" > : DEFAULT
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| 191 | }
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| 192 |
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| 193 | <COMMENT>
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| 194 | SKIP:
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| 195 | {
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| 196 | < ~[] >
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| 197 | }
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| 198 |
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[6970] | 199 |
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| 200 | /*************
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| 201 | *
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| 202 | * Preprocessor parser definitions:
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| 203 | *
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| 204 | * <pre>
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| 205 | *
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| 206 | * {@literal @media} { ... } queries are supported, following http://www.w3.org/TR/css3-mediaqueries/#syntax
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| 207 | *
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| 208 | * media_query
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| 209 | * ___________________________|_______________________________
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| 210 | * | |
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| 211 | * {@literal @media} all and (min-josm-version: 7789) and (max-josm-version: 7790), all and (user-agent: xyz) { ... }
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| 212 | * |______________________|
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| 213 | * |
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| 214 | * media_expression
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| 215 | * </pre>
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| 216 | */
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| 217 |
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| 218 |
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| 219 | /**
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| 220 | * root method for the preprocessor.
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| 221 | */
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| 222 | String pp_root(MapCSSStyleSource sheet):
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| 223 | {
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| 224 | }
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| 225 | {
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| 226 | { sb = new StringBuilder(); this.sheet = sheet; }
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| 227 | pp_black_box(true) <EOF>
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| 228 | { return sb.toString(); }
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| 229 | }
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| 230 |
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| 231 | /**
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| 232 | * Parse any unknown grammar (black box).
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| 233 | *
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| 234 | * Only stop when "@media" is encountered and keep track of correct number of
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| 235 | * opening and closing curly brackets.
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| 236 | *
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| 237 | * @param write false if this content should be skipped (@pp_media condition is not fulfilled), true otherwise
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| 238 | */
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| 239 | void pp_black_box(boolean write):
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| 240 | {
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| 241 | Token t;
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| 242 | }
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| 243 | {
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| 244 | (
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[7277] | 245 | (t=<PP_AND> | t=<PP_NOT> | t=<UINT> | t=<STRING> | t=<REGEX> | t=<LPAR> | t=<RPAR> | t=<COMMA> | t=<COLON> | t=<IDENT> | t=<PP_SOMETHING_ELSE>) { if (write) sb.append(t.image); }
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[6970] | 246 | |
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| 247 | pp_w1()
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| 248 | |
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[7277] | 249 | pp_media(!write)
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[6970] | 250 | |
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| 251 | t=<LBRACE> { if (write) sb.append(t.image); } pp_black_box(write) t=<RBRACE> { if (write) sb.append(t.image); }
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| 252 | )*
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| 253 | }
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| 254 |
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[7277] | 255 | void pp_media(boolean ignore):
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[6970] | 256 | {
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| 257 | boolean pass = false;
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| 258 | boolean q;
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| 259 | boolean empty = true;
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| 260 | }
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| 261 | {
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| 262 | <PP_MEDIA> pp_w()
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| 263 | ( q=pp_media_query() { pass = pass || q; empty = false; }
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| 264 | ( <COMMA> pp_w() q=pp_media_query() { pass = pass || q; } )*
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| 265 | )?
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| 266 | <LBRACE>
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[7277] | 267 | pp_black_box((empty || pass) && !ignore)
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[6970] | 268 | <RBRACE>
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| 269 | }
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| 270 |
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| 271 | boolean pp_media_query():
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| 272 | {
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| 273 | Token t;
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| 274 | String mediatype = "all";
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| 275 | boolean pass = true;
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| 276 | boolean invert = false;
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| 277 | boolean e;
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| 278 | }
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| 279 | {
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| 280 | ( <PP_NOT> { invert = true; } pp_w() )?
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| 281 | (
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| 282 | t=<IDENT> { mediatype = t.image.toLowerCase(); } pp_w()
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| 283 | ( <PP_AND> pp_w() e=pp_media_expression() { pass = pass && e; } pp_w() )*
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| 284 | |
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| 285 | e=pp_media_expression() { pass = pass && e; } pp_w()
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| 286 | ( <PP_AND> pp_w() e=pp_media_expression() { pass = pass && e; } pp_w() )*
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| 287 | )
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| 288 | {
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| 289 | if (!"all".equals(mediatype)) {
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| 290 | pass = false;
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| 291 | }
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| 292 | return invert ? (!pass) : pass;
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| 293 | }
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| 294 | }
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| 295 |
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| 296 | /**
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| 297 | * Parse an @media expression.
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| 298 | *
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| 299 | * The parsing rule {@link #literal()} from the main mapcss parser is reused here.
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| 300 | *
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| 301 | * @return true if the condition is fulfilled
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| 302 | */
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| 303 | boolean pp_media_expression():
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| 304 | {
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| 305 | Token t;
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| 306 | String feature;
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| 307 | Object val = null;
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| 308 | }
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| 309 | {
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| 310 | <LPAR> pp_w() t=<IDENT> { feature = t.image; } pp_w() ( <COLON> pp_w() val=literal() )? <RPAR>
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| 311 | { return this.sheet.evalMediaExpression(feature, val); }
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| 312 | }
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| 313 |
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| 314 | void pp_w1():
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| 315 | {
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| 316 | Token t;
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| 317 | }
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| 318 | {
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| 319 | t=<PP_NEWLINECHAR> { sb.append(t.image); }
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| 320 | |
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| 321 | t=<PP_WHITESPACE> { sb.append(t.image); }
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| 322 | |
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| 323 | t=<PP_COMMENT_START> { sb.append(t.image); } t=<PP_COMMENT_END> { sb.append(t.image); }
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| 324 | }
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| 325 |
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| 326 | void pp_w():
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| 327 | {
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| 328 | }
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| 329 | {
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| 330 | ( pp_w1() )*
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| 331 | }
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| 332 |
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| 333 | /*************
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| 334 | *
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| 335 | * Parser definition for the main MapCSS parser:
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| 336 | *
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| 337 | * <pre>
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| 338 | *
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| 339 | * rule
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| 340 | * _______________________|______________________________
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| 341 | * | |
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| 342 | * selector declaration
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| 343 | * _________|___________________ _________|____________
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| 344 | * | | | |
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| 345 | *
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| 346 | * way|z11-12[highway=residential] { color: red; width: 3 }
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| 347 | *
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| 348 | * |_____||___________________| |_________|
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| 349 | * | | |
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| 350 | * zoom condition instruction
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| 351 | *
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| 352 | * more general:
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| 353 | *
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| 354 | * way|z13-[a=b][c=d]::subpart, way|z-3[u=v]:closed::subpart2 { p1 : val; p2 : val; }
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| 355 | *
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| 356 | * 'val' can be a literal, or an expression like "prop(width, default) + 0.8".
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| 357 | *
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| 358 | * </pre>
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| 359 | */
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| 360 |
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[3848] | 361 | int uint() :
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| 362 | {
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| 363 | Token i;
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| 364 | }
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| 365 | {
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| 366 | i=<UINT> { return Integer.parseInt(i.image); }
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| 367 | }
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| 368 |
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[3911] | 369 | int int_() :
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| 370 | {
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| 371 | int i;
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| 372 | }
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| 373 | {
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| 374 | <MINUS> i=uint() { return -i; } | i=uint() { return i; }
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| 375 | }
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| 376 |
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[3848] | 377 | float ufloat() :
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| 378 | {
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| 379 | Token f;
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| 380 | }
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| 381 | {
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| 382 | ( f=<UFLOAT> | f=<UINT> )
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| 383 | { return Float.parseFloat(f.image); }
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| 384 | }
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| 385 |
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[3876] | 386 | float float_() :
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| 387 | {
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| 388 | float f;
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| 389 | }
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| 390 | {
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| 391 | <MINUS> f=ufloat() { return -f; } | f=ufloat() { return f; }
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| 392 | }
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| 393 |
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[3848] | 394 | String string() :
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| 395 | {
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| 396 | Token t;
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| 397 | }
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| 398 | {
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| 399 | t=<STRING>
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[3876] | 400 | { return t.image.substring(1, t.image.length() - 1).replace("\\\"", "\"").replace("\\\\", "\\"); }
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[3848] | 401 | }
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| 402 |
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[6896] | 403 | String ident():
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| 404 | {
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| 405 | Token t;
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| 406 | String s;
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| 407 | }
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| 408 | {
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[6970] | 409 | ( t=<IDENT> | t=<SET> ) { return t.image; }
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[6896] | 410 | }
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| 411 |
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[3848] | 412 | String string_or_ident() :
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| 413 | {
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| 414 | Token t;
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| 415 | String s;
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| 416 | }
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| 417 | {
|
---|
[6896] | 418 | ( s=ident() | s=string() ) { return s; }
|
---|
[3848] | 419 | }
|
---|
| 420 |
|
---|
[3876] | 421 | String regex() :
|
---|
| 422 | {
|
---|
| 423 | Token t;
|
---|
| 424 | }
|
---|
| 425 | {
|
---|
| 426 | t=<REGEX>
|
---|
| 427 | { return t.image.substring(1, t.image.length() - 1); }
|
---|
| 428 | }
|
---|
| 429 |
|
---|
[3848] | 430 | /**
|
---|
| 431 | * white-space
|
---|
| 432 | */
|
---|
| 433 | void s() :
|
---|
| 434 | {
|
---|
| 435 | }
|
---|
| 436 | {
|
---|
| 437 | ( <S> )?
|
---|
| 438 | }
|
---|
| 439 |
|
---|
| 440 | /**
|
---|
| 441 | * mix of white-space and comments
|
---|
| 442 | */
|
---|
| 443 | void w() :
|
---|
| 444 | {
|
---|
| 445 | }
|
---|
| 446 | {
|
---|
[3876] | 447 | ( <S> | <COMMENT_START> <COMMENT_END> )*
|
---|
[3848] | 448 | }
|
---|
| 449 |
|
---|
| 450 | /**
|
---|
[6830] | 451 | * comma delimited list of floats (at least 2, all >= 0)
|
---|
[3848] | 452 | */
|
---|
[3856] | 453 | List<Float> float_array() :
|
---|
[3848] | 454 | {
|
---|
| 455 | float f;
|
---|
| 456 | List<Float> fs = new ArrayList<Float>();
|
---|
| 457 | }
|
---|
| 458 | {
|
---|
| 459 | f=ufloat() { fs.add(f); }
|
---|
| 460 | (
|
---|
| 461 | <COMMA> s()
|
---|
| 462 | f=ufloat() { fs.add(f); }
|
---|
| 463 | )+
|
---|
| 464 | {
|
---|
[3856] | 465 | return fs;
|
---|
[3848] | 466 | }
|
---|
| 467 | }
|
---|
| 468 |
|
---|
| 469 | /**
|
---|
[6970] | 470 | * entry point for the main parser
|
---|
[3848] | 471 | */
|
---|
| 472 | void sheet(MapCSSStyleSource sheet):
|
---|
| 473 | {
|
---|
| 474 | }
|
---|
| 475 | {
|
---|
[3863] | 476 | { this.sheet = sheet; }
|
---|
[3848] | 477 | w()
|
---|
[3876] | 478 | (
|
---|
| 479 | try {
|
---|
[7064] | 480 | rule() w()
|
---|
[4069] | 481 | } catch (MapCSSException mex) {
|
---|
| 482 | error_skipto(RBRACE, mex);
|
---|
| 483 | w();
|
---|
[3876] | 484 | } catch (ParseException ex) {
|
---|
[4069] | 485 | error_skipto(RBRACE, null);
|
---|
[3876] | 486 | w();
|
---|
| 487 | }
|
---|
| 488 | )*
|
---|
[6970] | 489 | <EOF>
|
---|
[3848] | 490 | }
|
---|
| 491 |
|
---|
[7064] | 492 | void rule():
|
---|
[3848] | 493 | {
|
---|
| 494 | List<Selector> selectors = new ArrayList<Selector>();
|
---|
| 495 | Selector sel;
|
---|
[7064] | 496 | Declaration decl;
|
---|
[3848] | 497 | }
|
---|
| 498 | {
|
---|
[3902] | 499 | sel=child_selector() { selectors.add(sel); }
|
---|
[3876] | 500 | (
|
---|
| 501 | <COMMA> w()
|
---|
[3902] | 502 | sel=child_selector() { selectors.add(sel); }
|
---|
[3876] | 503 | )*
|
---|
[3848] | 504 | decl=declaration()
|
---|
[7064] | 505 | {
|
---|
| 506 | for (Selector s : selectors) {
|
---|
| 507 | sheet.rules.add(new MapCSSRule(s, decl));
|
---|
| 508 | }
|
---|
| 509 | }
|
---|
[3848] | 510 | }
|
---|
| 511 |
|
---|
[3902] | 512 | Selector child_selector() :
|
---|
| 513 | {
|
---|
[6607] | 514 | Selector.ChildOrParentSelectorType type = null;
|
---|
[4069] | 515 | Condition c;
|
---|
| 516 | List<Condition> conditions = new ArrayList<Condition>();
|
---|
| 517 | Selector selLeft;
|
---|
| 518 | LinkSelector selLink = null;
|
---|
| 519 | Selector selRight = null;
|
---|
[3902] | 520 | }
|
---|
| 521 | {
|
---|
[4069] | 522 | selLeft=selector() w()
|
---|
[3902] | 523 | (
|
---|
[6607] | 524 | (
|
---|
[6927] | 525 | (
|
---|
[7166] | 526 | (
|
---|
| 527 | <GREATER> { type = Selector.ChildOrParentSelectorType.CHILD; }
|
---|
| 528 | |
|
---|
| 529 | <LESS> { type = Selector.ChildOrParentSelectorType.PARENT; }
|
---|
| 530 | |
|
---|
| 531 | <PLUS> { type = Selector.ChildOrParentSelectorType.SIBLING; }
|
---|
| 532 | )
|
---|
| 533 | ( ( c=condition(Context.LINK) | c=class_or_pseudoclass(Context.LINK) ) { conditions.add(c); } )*
|
---|
[6927] | 534 | |
|
---|
[7166] | 535 | <ELEMENT_OF> { type = Selector.ChildOrParentSelectorType.ELEMENT_OF; }
|
---|
[6927] | 536 | |
|
---|
[7166] | 537 | <CROSSING> { type = Selector.ChildOrParentSelectorType.CROSSING; }
|
---|
[6927] | 538 | )
|
---|
[7166] | 539 | w()
|
---|
[6607] | 540 | |
|
---|
[7166] | 541 | { /* <GREATER> is optional for child selector */ type = Selector.ChildOrParentSelectorType.CHILD; }
|
---|
[6607] | 542 | )
|
---|
[4069] | 543 | { selLink = new LinkSelector(conditions); }
|
---|
| 544 | selRight=selector() w()
|
---|
[3902] | 545 | )?
|
---|
[6607] | 546 | { return selRight != null ? new ChildOrParentSelector(selLeft, selLink, selRight, type) : selLeft; }
|
---|
[3902] | 547 | }
|
---|
| 548 |
|
---|
[3848] | 549 | Selector selector() :
|
---|
| 550 | {
|
---|
| 551 | Token base;
|
---|
| 552 | Condition c;
|
---|
| 553 | Pair<Integer, Integer> r = null;
|
---|
| 554 | List<Condition> conditions = new ArrayList<Condition>();
|
---|
| 555 | String sub = null;
|
---|
| 556 | }
|
---|
| 557 | {
|
---|
| 558 | ( base=<IDENT> | base=<STAR> )
|
---|
| 559 | ( r=zoom() )?
|
---|
[6560] | 560 | ( ( c=condition(Context.PRIMITIVE) | c=class_or_pseudoclass(Context.PRIMITIVE) ) { conditions.add(c); } )*
|
---|
[3848] | 561 | ( sub=subpart() )?
|
---|
[3902] | 562 | { return new GeneralSelector(base.image, r, conditions, sub); }
|
---|
[3848] | 563 | }
|
---|
| 564 |
|
---|
| 565 | Pair<Integer, Integer> zoom() :
|
---|
| 566 | {
|
---|
| 567 | Integer min = 0;
|
---|
| 568 | Integer max = Integer.MAX_VALUE;
|
---|
| 569 | }
|
---|
| 570 | {
|
---|
| 571 | <PIPE_Z>
|
---|
| 572 | (
|
---|
[3876] | 573 | <MINUS> max=uint()
|
---|
| 574 | |
|
---|
[4280] | 575 | LOOKAHEAD(2)
|
---|
| 576 | min=uint() <MINUS> ( max=uint() )?
|
---|
| 577 | |
|
---|
| 578 | min=uint() { max = min; }
|
---|
[3848] | 579 | )
|
---|
| 580 | { return new Pair<Integer, Integer>(min, max); }
|
---|
| 581 | }
|
---|
| 582 |
|
---|
[4069] | 583 | Condition condition(Context context) :
|
---|
[3848] | 584 | {
|
---|
[3856] | 585 | Condition c;
|
---|
| 586 | Expression e;
|
---|
| 587 | }
|
---|
| 588 | {
|
---|
[3911] | 589 | <LSQUARE> s()
|
---|
[3876] | 590 | (
|
---|
[4069] | 591 | LOOKAHEAD( simple_key_condition(context) s() <RSQUARE> )
|
---|
| 592 | c=simple_key_condition(context) s() <RSQUARE> { return c; }
|
---|
[3876] | 593 | |
|
---|
[4069] | 594 | LOOKAHEAD( simple_key_value_condition(context) s() <RSQUARE> )
|
---|
| 595 | c=simple_key_value_condition(context) s() <RSQUARE> { return c; }
|
---|
[3876] | 596 | |
|
---|
[6560] | 597 | e=expression() <RSQUARE> { return Condition.createExpressionCondition(e, context); }
|
---|
[3856] | 598 | )
|
---|
| 599 | }
|
---|
| 600 |
|
---|
[3902] | 601 | String tag_key() :
|
---|
| 602 | {
|
---|
[6896] | 603 | String s, s2;
|
---|
[3902] | 604 | Token t;
|
---|
| 605 | }
|
---|
| 606 | {
|
---|
| 607 | s=string() { return s; }
|
---|
| 608 | |
|
---|
[6896] | 609 | s=ident() ( <COLON> s2=ident() { s += ':' + s2; } )* { return s; }
|
---|
[3902] | 610 | }
|
---|
| 611 |
|
---|
[4069] | 612 | Condition simple_key_condition(Context context) :
|
---|
[3856] | 613 | {
|
---|
[3848] | 614 | boolean not = false;
|
---|
[6547] | 615 | Condition.KeyMatchType matchType = null;;
|
---|
[3848] | 616 | String key;
|
---|
| 617 | }
|
---|
| 618 | {
|
---|
| 619 | ( <EXCLAMATION> { not = true; } )?
|
---|
[6547] | 620 | (
|
---|
| 621 | { matchType = Condition.KeyMatchType.REGEX; } key = regex()
|
---|
| 622 | |
|
---|
| 623 | key = tag_key()
|
---|
| 624 | )
|
---|
| 625 | ( LOOKAHEAD(2) <QUESTION> <EXCLAMATION> { matchType = Condition.KeyMatchType.FALSE; } )?
|
---|
| 626 | ( <QUESTION> { matchType = Condition.KeyMatchType.TRUE; } )?
|
---|
[6560] | 627 | { return Condition.createKeyCondition(key, not, matchType, context); }
|
---|
[3848] | 628 | }
|
---|
| 629 |
|
---|
[4069] | 630 | Condition simple_key_value_condition(Context context) :
|
---|
[3856] | 631 | {
|
---|
| 632 | String key;
|
---|
| 633 | String val;
|
---|
[3876] | 634 | float f;
|
---|
[3911] | 635 | int i;
|
---|
[3876] | 636 | Condition.Op op;
|
---|
[6554] | 637 | boolean considerValAsKey = false;
|
---|
[3856] | 638 | }
|
---|
| 639 | {
|
---|
[3911] | 640 | key=tag_key() s()
|
---|
[3876] | 641 | (
|
---|
[6554] | 642 | LOOKAHEAD(3)
|
---|
| 643 | (
|
---|
| 644 | <EQUAL> <TILDE> { op=Condition.Op.REGEX; }
|
---|
| 645 | |
|
---|
| 646 | <EXCLAMATION> <TILDE> { op=Condition.Op.NREGEX; }
|
---|
| 647 | )
|
---|
| 648 | s()
|
---|
| 649 | ( <STAR> { considerValAsKey=true; } )?
|
---|
| 650 | val=regex()
|
---|
[3911] | 651 | |
|
---|
[3876] | 652 | (
|
---|
[3911] | 653 | <EXCLAMATION> <EQUAL> { op=Condition.Op.NEQ; }
|
---|
[3876] | 654 | |
|
---|
| 655 | <EQUAL> { op=Condition.Op.EQ; }
|
---|
| 656 | |
|
---|
[3912] | 657 | <TILDE> <EQUAL> { op=Condition.Op.ONE_OF; }
|
---|
[3876] | 658 | |
|
---|
[3912] | 659 | <CARET> <EQUAL> { op=Condition.Op.BEGINS_WITH; }
|
---|
[3876] | 660 | |
|
---|
[3912] | 661 | <DOLLAR> <EQUAL> { op=Condition.Op.ENDS_WITH; }
|
---|
[3876] | 662 | |
|
---|
[3912] | 663 | <STAR> <EQUAL> { op=Condition.Op.CONTAINS; }
|
---|
[3876] | 664 | )
|
---|
[3911] | 665 | s()
|
---|
[6554] | 666 | ( <STAR> { considerValAsKey=true; } )?
|
---|
[3911] | 667 | (
|
---|
| 668 | LOOKAHEAD(2)
|
---|
| 669 | i=int_() { val=Integer.toString(i); }
|
---|
| 670 | |
|
---|
| 671 | f=float_() { val=Float.toString(f); }
|
---|
| 672 | |
|
---|
| 673 | val=string_or_ident()
|
---|
| 674 | )
|
---|
[3876] | 675 | |
|
---|
| 676 | (
|
---|
| 677 | <GREATER_EQUAL> { op=Condition.Op.GREATER_OR_EQUAL; }
|
---|
| 678 | |
|
---|
| 679 | <GREATER> { op=Condition.Op.GREATER; }
|
---|
| 680 | |
|
---|
| 681 | <LESS_EQUAL> { op=Condition.Op.LESS_OR_EQUAL; }
|
---|
| 682 | |
|
---|
| 683 | <LESS> { op=Condition.Op.LESS; }
|
---|
| 684 | )
|
---|
[3911] | 685 | s()
|
---|
| 686 | f=float_() { val=Float.toString(f); }
|
---|
[3876] | 687 | )
|
---|
[6560] | 688 | { return Condition.createKeyValueCondition(key, val, op, context, considerValAsKey); }
|
---|
[3856] | 689 | }
|
---|
| 690 |
|
---|
[6560] | 691 | Condition class_or_pseudoclass(Context context) :
|
---|
[3848] | 692 | {
|
---|
[6896] | 693 | String s;
|
---|
[3848] | 694 | boolean not = false;
|
---|
[6560] | 695 | boolean pseudo;
|
---|
[3848] | 696 | }
|
---|
| 697 | {
|
---|
[3888] | 698 | ( <EXCLAMATION> { not = true; } )?
|
---|
[6560] | 699 | (
|
---|
| 700 | <FULLSTOP> { pseudo = false; }
|
---|
| 701 | |
|
---|
| 702 | <COLON> { pseudo = true; }
|
---|
| 703 | )
|
---|
[6896] | 704 | s=ident()
|
---|
[6560] | 705 | { return pseudo
|
---|
[6896] | 706 | ? Condition.createPseudoClassCondition(s, not, context)
|
---|
| 707 | : Condition.createClassCondition(s, not, context); }
|
---|
[3848] | 708 | }
|
---|
| 709 |
|
---|
| 710 | String subpart() :
|
---|
| 711 | {
|
---|
[6896] | 712 | String s;
|
---|
[3848] | 713 | }
|
---|
| 714 | {
|
---|
[3876] | 715 | <DCOLON>
|
---|
[6896] | 716 | ( s=ident() { return s; } | <STAR> { return "*"; } )
|
---|
[3848] | 717 | }
|
---|
| 718 |
|
---|
[7064] | 719 | Declaration declaration() :
|
---|
[3848] | 720 | {
|
---|
| 721 | List<Instruction> ins = new ArrayList<Instruction>();
|
---|
| 722 | Instruction i;
|
---|
| 723 | Token key;
|
---|
[6560] | 724 | Object val = null;
|
---|
[3848] | 725 | }
|
---|
| 726 | {
|
---|
[3876] | 727 | <LBRACE> w()
|
---|
[3848] | 728 | (
|
---|
[6560] | 729 | (
|
---|
[6561] | 730 | <SET> w()
|
---|
| 731 | (<FULLSTOP>)? // specification allows "set .class" to set "class". we also support "set class"
|
---|
| 732 | key=<IDENT> w()
|
---|
| 733 | ( <EQUAL> val=expression() )?
|
---|
[6611] | 734 | { ins.add(new Instruction.AssignmentInstruction(key.image, val == null ? true : val, true)); }
|
---|
[7064] | 735 | ( <RBRACE> { return new Declaration(ins, declarationCounter++); } | <SEMICOLON> w() )
|
---|
[6560] | 736 | )
|
---|
[6561] | 737 | |
|
---|
[3876] | 738 | key=<IDENT> w() <COLON> w()
|
---|
| 739 | (
|
---|
| 740 | LOOKAHEAD( float_array() w() ( <SEMICOLON> | <RBRACE> ) )
|
---|
| 741 | val=float_array()
|
---|
[6611] | 742 | { ins.add(new Instruction.AssignmentInstruction(key.image, val, false)); }
|
---|
[3876] | 743 | w()
|
---|
[7064] | 744 | ( <RBRACE> { return new Declaration(ins, declarationCounter++); } | <SEMICOLON> w() )
|
---|
[3876] | 745 | |
|
---|
| 746 | LOOKAHEAD( expression() ( <SEMICOLON> | <RBRACE> ) )
|
---|
| 747 | val=expression()
|
---|
[6611] | 748 | { ins.add(new Instruction.AssignmentInstruction(key.image, val, false)); }
|
---|
[7064] | 749 | ( <RBRACE> { return new Declaration(ins, declarationCounter++); } | <SEMICOLON> w() )
|
---|
[3876] | 750 | |
|
---|
[6611] | 751 | val=readRaw() w() { ins.add(new Instruction.AssignmentInstruction(key.image, val, false)); }
|
---|
[3876] | 752 | )
|
---|
| 753 | )*
|
---|
| 754 | <RBRACE>
|
---|
[7064] | 755 | { return new Declaration(ins, declarationCounter++); }
|
---|
[3848] | 756 | }
|
---|
| 757 |
|
---|
| 758 | Expression expression():
|
---|
| 759 | {
|
---|
| 760 | List<Expression> args = new ArrayList<Expression>();
|
---|
| 761 | Expression e;
|
---|
| 762 | String op = null;
|
---|
| 763 | }
|
---|
| 764 | {
|
---|
| 765 | (
|
---|
[3876] | 766 | <EXCLAMATION> { op = "not"; } w() e=primary() { args.add(e); } w()
|
---|
[3867] | 767 | |
|
---|
[3876] | 768 | <MINUS> { op = "minus"; } w() e=primary() { args.add(e); } w()
|
---|
[3867] | 769 | |
|
---|
[3876] | 770 |
|
---|
[3867] | 771 | (
|
---|
| 772 | e=primary() { args.add(e); } w()
|
---|
| 773 | (
|
---|
| 774 | ( <PLUS> { op = "plus"; } w() e=primary() { args.add(e); } w() )+
|
---|
| 775 | |
|
---|
| 776 | ( <STAR> { op = "times"; } w() e=primary() { args.add(e); } w() )+
|
---|
| 777 | |
|
---|
| 778 | ( <MINUS> { op = "minus"; } w() e=primary() { args.add(e); } w() )+
|
---|
| 779 | |
|
---|
| 780 | ( <SLASH> { op = "divided_by"; } w() e=primary() { args.add(e); } w() )+
|
---|
| 781 | |
|
---|
[3876] | 782 | <GREATER_EQUAL> { op = "greater_equal"; } w() e=primary() { args.add(e); } w()
|
---|
[3867] | 783 | |
|
---|
[3876] | 784 | <LESS_EQUAL> { op = "less_equal"; } w() e=primary() { args.add(e); } w()
|
---|
[3867] | 785 | |
|
---|
[3876] | 786 | <GREATER> { op = "greater"; } w() e=primary() { args.add(e); } w()
|
---|
[3867] | 787 | |
|
---|
[3876] | 788 | <EQUAL> ( <EQUAL> )? { op = "equal"; } w() e=primary() { args.add(e); } w()
|
---|
[3867] | 789 | |
|
---|
[3876] | 790 | <LESS> { op = "less"; } w() e=primary() { args.add(e); } w()
|
---|
[3867] | 791 | |
|
---|
[3876] | 792 | <AMPERSAND> <AMPERSAND> { op = "and"; } w() e=primary() { args.add(e); } w()
|
---|
[3867] | 793 | |
|
---|
[3876] | 794 | <PIPE> <PIPE> { op = "or"; } w() e=primary() { args.add(e); } w()
|
---|
[3867] | 795 | |
|
---|
[3876] | 796 | <QUESTION> { op = "cond"; } w() e=primary() { args.add(e); } w() <COLON> w() e=primary() { args.add(e); } w()
|
---|
[3867] | 797 | )?
|
---|
| 798 | )
|
---|
| 799 | )
|
---|
[3848] | 800 | {
|
---|
[3856] | 801 | if (op == null)
|
---|
[3848] | 802 | return args.get(0);
|
---|
[5705] | 803 | return ExpressionFactory.createFunctionExpression(op, args);
|
---|
[3848] | 804 | }
|
---|
| 805 | }
|
---|
| 806 |
|
---|
| 807 | Expression primary() :
|
---|
| 808 | {
|
---|
| 809 | Expression nested;
|
---|
[5705] | 810 | Expression fn;
|
---|
[3848] | 811 | Object lit;
|
---|
| 812 | }
|
---|
| 813 | {
|
---|
[3971] | 814 | LOOKAHEAD(3) // both function and identifier start with an identifier (+ optional whitespace)
|
---|
[3848] | 815 | fn=function() { return fn; }
|
---|
| 816 | |
|
---|
| 817 | lit=literal() { return new LiteralExpression(lit); }
|
---|
| 818 | |
|
---|
[3876] | 819 | <LPAR> w() nested=expression() <RPAR> { return nested; }
|
---|
[3848] | 820 | }
|
---|
| 821 |
|
---|
[5705] | 822 | Expression function() :
|
---|
[3848] | 823 | {
|
---|
| 824 | Expression arg;
|
---|
| 825 | String name;
|
---|
| 826 | List<Expression> args = new ArrayList<Expression>();
|
---|
| 827 | }
|
---|
| 828 | {
|
---|
[6896] | 829 | name=ident() w()
|
---|
[3848] | 830 | <LPAR> w()
|
---|
[3856] | 831 | (
|
---|
| 832 | arg=expression() { args.add(arg); }
|
---|
| 833 | ( <COMMA> w() arg=expression() { args.add(arg); } )*
|
---|
| 834 | )?
|
---|
[3848] | 835 | <RPAR>
|
---|
[5705] | 836 | { return ExpressionFactory.createFunctionExpression(name, args); }
|
---|
[3848] | 837 | }
|
---|
| 838 |
|
---|
| 839 | Object literal() :
|
---|
| 840 | {
|
---|
[6970] | 841 | String val, pref;
|
---|
| 842 | Token t;
|
---|
[3848] | 843 | float f;
|
---|
| 844 | }
|
---|
| 845 | {
|
---|
[6740] | 846 | LOOKAHEAD(2)
|
---|
[6970] | 847 | pref=ident() t=<HEXCOLOR>
|
---|
| 848 | { return Main.pref.getColor("mappaint." + (sheet == null ? "MapCSS" : sheet.title) + "." + pref, ColorHelper.html2color(t.image)); }
|
---|
[6740] | 849 | |
|
---|
[3967] | 850 | t=<IDENT> { return new Keyword(t.image); }
|
---|
[3848] | 851 | |
|
---|
[3967] | 852 | val=string() { return val; }
|
---|
| 853 | |
|
---|
[3876] | 854 | <PLUS> f=ufloat() { return new Instruction.RelativeFloat(f); }
|
---|
[3848] | 855 | |
|
---|
| 856 | f=ufloat() { return f; }
|
---|
| 857 | |
|
---|
[6740] | 858 | t=<HEXCOLOR> { return ColorHelper.html2color(t.image); }
|
---|
[3848] | 859 | }
|
---|
| 860 |
|
---|
| 861 | JAVACODE
|
---|
[4069] | 862 | void error_skipto(int kind, MapCSSException me) {
|
---|
[3893] | 863 | if (token.kind == EOF)
|
---|
| 864 | throw new ParseException("Reached end of file while parsing");
|
---|
[4069] | 865 |
|
---|
| 866 | Exception e = null;
|
---|
| 867 | ParseException pe = generateParseException();
|
---|
| 868 |
|
---|
| 869 | if (me != null) {
|
---|
| 870 | me.setLine(pe.currentToken.next.beginLine);
|
---|
| 871 | me.setColumn(pe.currentToken.next.beginColumn);
|
---|
| 872 | e = me;
|
---|
| 873 | } else {
|
---|
| 874 | e = new ParseException(pe.getMessage()); // prevent memory leak
|
---|
| 875 | }
|
---|
| 876 |
|
---|
[6248] | 877 | Main.error("Skipping to the next rule, because of an error:");
|
---|
| 878 | Main.error(e);
|
---|
[3863] | 879 | if (sheet != null) {
|
---|
[4069] | 880 | sheet.logError(e);
|
---|
[3863] | 881 | }
|
---|
| 882 | Token t;
|
---|
| 883 | do {
|
---|
| 884 | t = getNextToken();
|
---|
[3867] | 885 | } while (t.kind != kind && t.kind != EOF);
|
---|
| 886 | if (t.kind == EOF)
|
---|
| 887 | throw new ParseException("Reached end of file while parsing");
|
---|
[3848] | 888 | }
|
---|
| 889 |
|
---|
[3876] | 890 | JAVACODE
|
---|
| 891 | /**
|
---|
| 892 | * read everything to the next semicolon
|
---|
| 893 | */
|
---|
| 894 | String readRaw() {
|
---|
| 895 | Token t;
|
---|
| 896 | StringBuilder s = new StringBuilder();
|
---|
| 897 | while (true) {
|
---|
| 898 | t = getNextToken();
|
---|
[3893] | 899 | if ((t.kind == S || t.kind == STRING || t.kind == UNEXPECTED_CHAR) &&
|
---|
| 900 | t.image.contains("\n")) {
|
---|
| 901 | ParseException e = new ParseException(String.format("Warning: end of line while reading an unquoted string at line %s column %s.", t.beginLine, t.beginColumn));
|
---|
[6248] | 902 | Main.error(e);
|
---|
[3893] | 903 | if (sheet != null) {
|
---|
| 904 | sheet.logError(e);
|
---|
| 905 | }
|
---|
| 906 | }
|
---|
[3876] | 907 | if (t.kind == SEMICOLON || t.kind == EOF)
|
---|
| 908 | break;
|
---|
| 909 | s.append(t.image);
|
---|
| 910 | }
|
---|
| 911 | if (t.kind == EOF)
|
---|
| 912 | throw new ParseException("Reached end of file while parsing");
|
---|
| 913 | return s.toString();
|
---|
| 914 | }
|
---|
| 915 |
|
---|