Update sequence (type specifier -> field ref), fix definition lookup
[babeltrace.git] / formats / ctf / metadata / ctf-lexer.l
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8b9d5b5e 1%{
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2/*
3 * ctf-lexer.l
4 *
5 * Common Trace Formal Lexer
6 *
7 * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 */
19
8b9d5b5e 20#include <stdio.h>
a3983482 21#include <babeltrace/babeltrace.h>
34d3acc4 22#include "ctf-scanner.h"
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23#include "ctf-parser.h"
24#include "ctf-ast.h"
25
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26extern
27void setstring(struct ctf_scanner *scanner, YYSTYPE *lvalp, const char *src);
28
29static void yyunput (int c, register char * yy_bp , yyscan_t yyscanner)
30 __attribute__((unused));
31static int input (yyscan_t yyscanner) __attribute__((unused));
34d3acc4 32
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33%}
34
35%x comment_ml comment_sl string_lit char_const
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36%option reentrant yylineno noyywrap bison-bridge
37%option extra-type="struct ctf_scanner *"
38 /* bison-locations */
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39INTEGER_SUFFIX [ \n\t]*(U|UL|ULL|LU|LLU|Ul|Ull|lU|llU|u|uL|uLL|Lu|LLu|ul|ull|lu|llu)
40DIGIT [0-9]
41NONDIGIT [a-zA-Z_]
42HEXDIGIT [0-9A-Fa-f]
43OCTALDIGIT [0-7]
44UCHARLOWERCASE \\u{HEXDIGIT}{4}
45UCHARUPPERCASE \\U{HEXDIGIT}{8}
46ID_NONDIGIT {NONDIGIT}|{UCHARLOWERCASE}|{UCHARUPPERCASE}
47IDENTIFIER {ID_NONDIGIT}({ID_NONDIGIT}|{DIGIT})*
48ESCSEQ \\(\'|\"|\?|\\|a|b|f|n|r|t|v|{OCTALDIGIT}{1,3}|u{HEXDIGIT}{4}|U{HEXDIGIT}{8}|x{HEXDIGIT}+)
49%%
50
51 /*
52 * Using start conditions to deal with comments
53 * and strings.
54 */
55
56"/*" BEGIN(comment_ml);
57<comment_ml>[^*\n]* /* eat anything that's not a '*' */
58<comment_ml>"*"+[^*/\n]* /* eat up '*'s not followed by '/'s */
59<comment_ml>\n ++yylineno;
60<comment_ml>"*"+"/" BEGIN(INITIAL);
61
62"//" BEGIN(comment_sl);
63<comment_sl>[^\n]*\n ++yylineno; BEGIN(INITIAL);
64
65L\' BEGIN(char_const); return CHARACTER_CONSTANT_START;
66\' BEGIN(char_const); return CHARACTER_CONSTANT_START;
67<char_const>\' BEGIN(INITIAL); return SQUOTE;
68
69L\" BEGIN(string_lit); return STRING_LITERAL_START;
70\" BEGIN(string_lit); return STRING_LITERAL_START;
71<string_lit>\" BEGIN(INITIAL); return DQUOTE;
72
73<char_const,string_lit>ESCSEQ return ESCSEQ;
74<char_const,string_lit>\n ; /* ignore */
6dc474b8 75<char_const,string_lit>. setstring(yyextra, yylval, yytext); return CHAR_STRING_TOKEN;
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76
77"[" return LSBRAC;
78"]" return RSBRAC;
79"(" return LPAREN;
80")" return RPAREN;
81"{" return LBRAC;
82"}" return RBRAC;
83"->" return RARROW;
84"*" return STAR;
85"+" return PLUS;
86"-" return MINUS;
87"<" return LT;
88">" return GT;
89:= return TYPEASSIGN;
90: return COLON;
91; return SEMICOLON;
92"..." return DOTDOTDOT;
93"." return DOT;
94= return EQUAL;
95"," return COMMA;
b7e35bad 96align setstring(yyextra, yylval, yytext); return TOK_ALIGN;
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97const setstring(yyextra, yylval, yytext); return CONST;
98char setstring(yyextra, yylval, yytext); return CHAR;
99double setstring(yyextra, yylval, yytext); return DOUBLE;
100enum setstring(yyextra, yylval, yytext); return ENUM;
101event setstring(yyextra, yylval, yytext); return EVENT;
102floating_point setstring(yyextra, yylval, yytext); return FLOATING_POINT;
103float setstring(yyextra, yylval, yytext); return FLOAT;
104integer setstring(yyextra, yylval, yytext); return INTEGER;
105int setstring(yyextra, yylval, yytext); return INT;
106long setstring(yyextra, yylval, yytext); return LONG;
107short setstring(yyextra, yylval, yytext); return SHORT;
108signed setstring(yyextra, yylval, yytext); return SIGNED;
109stream setstring(yyextra, yylval, yytext); return STREAM;
110string setstring(yyextra, yylval, yytext); return STRING;
111struct setstring(yyextra, yylval, yytext); return STRUCT;
112trace setstring(yyextra, yylval, yytext); return TRACE;
113typealias setstring(yyextra, yylval, yytext); return TYPEALIAS;
114typedef setstring(yyextra, yylval, yytext); return TYPEDEF;
115unsigned setstring(yyextra, yylval, yytext); return UNSIGNED;
116variant setstring(yyextra, yylval, yytext); return VARIANT;
117void setstring(yyextra, yylval, yytext); return VOID;
118_Bool setstring(yyextra, yylval, yytext); return _BOOL;
119_Complex setstring(yyextra, yylval, yytext); return _COMPLEX;
120_Imaginary setstring(yyextra, yylval, yytext); return _IMAGINARY;
121[1-9]{DIGIT}*{INTEGER_SUFFIX}? setstring(yyextra, yylval, yytext); return DECIMAL_CONSTANT;
1220{OCTALDIGIT}*{INTEGER_SUFFIX}? setstring(yyextra, yylval, yytext); return OCTAL_CONSTANT;
1230[xX]{HEXDIGIT}+{INTEGER_SUFFIX}? setstring(yyextra, yylval, yytext); return HEXADECIMAL_CONSTANT;
a3983482 124{IDENTIFIER} printf_debug("<IDENTIFIER %s>\n", yytext); setstring(yyextra, yylval, yytext); if (is_type(yyextra, yytext)) return ID_TYPE; else return IDENTIFIER;
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125[ \t\n]+ ; /* ignore */
126. return ERROR;
127%%
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