You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
46 lines
1.2 KiB
ANTLR
46 lines
1.2 KiB
ANTLR
lexer grammar ApiLexer;
|
|
|
|
// Keywords
|
|
ATDOC: '@doc';
|
|
ATHANDLER: '@handler';
|
|
INTERFACE: 'interface{}';
|
|
ATSERVER: '@server';
|
|
|
|
// Whitespace and comments
|
|
WS: [ \t\r\n\u000C]+ -> channel(HIDDEN);
|
|
COMMENT: '/*' .*? '*/' -> channel(88);
|
|
LINE_COMMENT: '//' ~[\r\n]* -> channel(88);
|
|
STRING: '"' (~["\\] | EscapeSequence)* '"';
|
|
RAW_STRING: '`' (~[`\\\r\n] | EscapeSequence)+ '`';
|
|
LINE_VALUE: ':' [ \t]* (STRING|(~[\r\n"`]*));
|
|
ID: Letter LetterOrDigit*;
|
|
|
|
|
|
fragment ExponentPart
|
|
: [eE] [+-]? Digits
|
|
;
|
|
|
|
fragment EscapeSequence
|
|
: '\\' [btnfr"'\\]
|
|
| '\\' ([0-3]? [0-7])? [0-7]
|
|
| '\\' 'u'+ HexDigit HexDigit HexDigit HexDigit
|
|
;
|
|
fragment HexDigits
|
|
: HexDigit ((HexDigit | '_')* HexDigit)?
|
|
;
|
|
fragment HexDigit
|
|
: [0-9a-fA-F]
|
|
;
|
|
fragment Digits
|
|
: [0-9] ([0-9_]* [0-9])?
|
|
;
|
|
|
|
fragment LetterOrDigit
|
|
: Letter
|
|
| [0-9]
|
|
;
|
|
fragment Letter
|
|
: [a-zA-Z$_] // these are the "java letters" below 0x7F
|
|
| ~[\u0000-\u007F\uD800-\uDBFF] // covers all characters above 0x7F which are not a surrogate
|
|
| [\uD800-\uDBFF] [\uDC00-\uDFFF] // covers UTF-16 surrogate pairs encodings for U+10000 to U+10FFFF
|
|
; |