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SPEL syntax highlighting and validation
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| Original file line number | Diff line number | Diff line change |
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| /******************************************************************************* | ||
| * Copyright (c) 2024 Broadcom, Inc. | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v1.0 | ||
| * which accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-v10.html | ||
| * | ||
| * Contributors: | ||
| * Broadcom, Inc. - initial API and implementation | ||
| *******************************************************************************/ | ||
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| lexer grammar SpelLexer; | ||
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| @header { | ||
| /******************************************************************************* | ||
| * Copyright (c) 2024 Broadcom, Inc. | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v1.0 | ||
| * which accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-v10.html | ||
| * | ||
| * Contributors: | ||
| * Broadcom, Inc. - initial API and implementation | ||
| *******************************************************************************/ | ||
| } | ||
|
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| @members { | ||
| int nesting = 0; | ||
| } | ||
|
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| SEMICOLON: ';'; | ||
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| fragment NEWLINE | ||
| : '\r\n' | ||
| | [\r\n\u2028\u2029] | ||
| ; | ||
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| WS | ||
| : [ \t\r\n]+ -> channel(HIDDEN) | ||
| ; | ||
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| // ========================== S P E L ==================================================== | ||
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| INC: '++'; | ||
| PLUS: '+'; | ||
| DEC: '--'; | ||
| MINUS: '-'; | ||
| COLON: ':'; | ||
| DOT: '.'; | ||
| COMMA: ','; | ||
| STAR: '*'; | ||
| DIV: '/'; | ||
| MOD: '%'; | ||
| LPAREN: '('; | ||
| RPAREN: ')'; | ||
| LSQUARE: '['; | ||
| RSQUARE: ']'; | ||
| HASH: '#'; | ||
| BEAN_REF: '@'; | ||
| SELECT_FIRST: '^['; | ||
| POWER: '^'; | ||
| NE: '!='; | ||
| PROJECT: '!['; | ||
| NOT: '!'; | ||
| EQ: '=='; | ||
| ASSIGN: '='; | ||
| SYMBOLIC_AND: '&&'; | ||
| FACTORY_BEAN_REF: '&'; | ||
| SYMBOLIC_OR: '||'; | ||
| SELECT: '?['; | ||
| ELVIS: '?:'; | ||
| SAFE_NAVI: '?.'; | ||
| QMARK: '?'; | ||
| SELECT_LAST: '$['; | ||
| GE: '>='; | ||
| GT: '>'; | ||
| LE: '<='; | ||
| LT: '<'; | ||
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| // Special treatment to support template literals | ||
| LCURLY: '{' { nesting++; } -> pushMode(DEFAULT_MODE); | ||
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| RCURLY: '}' { | ||
| if (nesting > 0) { | ||
| nesting--; | ||
| } | ||
| } -> popMode; | ||
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| BACKTICK | ||
| : '`' -> pushMode(IN_TEMPLATE_STRING) | ||
| ; | ||
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| OR: 'or'; | ||
| AND: 'and'; | ||
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| TRUE: 'true'; | ||
| FALSE: 'false'; | ||
| NEW: 'new'; | ||
| NULL: 'null'; | ||
| T: 'T'; | ||
| MATCHES: 'matches'; | ||
| GT_KEYWORD: 'gt'; | ||
| GE_KEYWORD: 'ge'; | ||
| LE_KEYWORD: 'le'; | ||
| LT_KEYWORD: 'lt'; | ||
| EQ_KEYWORD: 'eq'; | ||
| NE_KEYWORD: 'ne'; | ||
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| // IDENTIFIER appearing AFTER tokens like OR and AND make those lex as special tokens, | ||
| // like SpEL's lexIdentifier() does | ||
| IDENTIFIER | ||
| : (ALPHABETIC | '_') (ALPHABETIC | DIGIT | '_' | '$')* | ||
| ; | ||
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| NUMERIC_LITERAL | ||
| : REAL_LITERAL | ||
| | INTEGER_LITERAL | ||
| ; | ||
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| REAL_LITERAL | ||
| : '.' DECIMAL_DIGIT+ EXPONENT_PART? REAL_TYPE_SUFFIX? | ||
| | DECIMAL_DIGIT+ '.' DECIMAL_DIGIT+ EXPONENT_PART? REAL_TYPE_SUFFIX? | ||
| | DECIMAL_DIGIT+ EXPONENT_PART REAL_TYPE_SUFFIX? | ||
| | DECIMAL_DIGIT+ REAL_TYPE_SUFFIX | ||
| ; | ||
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| INTEGER_LITERAL | ||
| : DECIMAL_DIGIT+ INTEGER_TYPE_SUFFIX? | ||
| ; | ||
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| STRING_LITERAL | ||
| : SINGLE_QUOTED_STRING | ||
| | DOUBLE_QUOTED_STRING | ||
| ; | ||
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| SINGLE_QUOTED_STRING | ||
| : '\'' ( '\'\'' | ~['\n] )* '\'' | ||
| ; | ||
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| DOUBLE_QUOTED_STRING | ||
| : '"' ( '""' | ~["\n] )* '"' | ||
| ; | ||
| fragment INTEGER_TYPE_SUFFIX : ( 'L' | 'l' ); | ||
| fragment HEX_DIGIT : [0-9A-Fa-f]; | ||
| fragment DECIMAL_DIGIT: [0-9]; | ||
| fragment EXPONENT_PART | ||
| : 'e' (SIGN)* (DECIMAL_DIGIT)+ | ||
| | 'E' (SIGN)* (DECIMAL_DIGIT)+ | ||
| ; | ||
| fragment SIGN : '+' | '-' ; | ||
| fragment REAL_TYPE_SUFFIX : 'F' | 'f' | 'D' | 'd'; | ||
| fragment ALPHABETIC | ||
| // See Character.isLetter() | ||
| // and https://github.com/antlr/antlr4/blob/master/doc/lexer-rules.md#lexer-rule-elements | ||
| // and https://github.com/spring-projects/spring-framework/commit/c8c8f5722bc58452894742534954c0935653771f | ||
| : [\p{Lu}] // UPPERCASE_LETTER | ||
| | [\p{Ll}] // LOWERCASE_LETTER | ||
| | [\p{Lt}] // TITLECASE_LETTER | ||
| | [\p{Lm}] // MODIFIER_LETTER | ||
| | [\p{Lo}] // OTHER_LETTER | ||
| ; | ||
| fragment DIGIT | ||
| : [0-9] | ||
| ; | ||
| mode IN_TEMPLATE_STRING; | ||
| ESCAPED_BACKTICK | ||
| : '``' | ||
| ; | ||
| SPEL_IN_TEMPLATE_STRING_OPEN: '#{' { nesting++; } -> pushMode(DEFAULT_MODE); | ||
| TEMPLATE_TEXT | ||
| : ~[`\n] | ||
| ; | ||
| BACKTICK_IN_TEMPLATE | ||
| : '`' -> type(BACKTICK), popMode | ||
| ; |
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