5 * Common Trace Formal Lexer
7 * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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:
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
21 #include <babeltrace/babeltrace-internal.h>
22 #include "ctf-scanner.h"
23 #include "ctf-parser.h"
27 void setstring(struct ctf_scanner *scanner, YYSTYPE *lvalp, const char *src);
29 static void yyunput (int c, register char * yy_bp , yyscan_t yyscanner)
30 __attribute__((unused));
31 static int input (yyscan_t yyscanner) __attribute__((unused));
35 %x comment_ml comment_sl string_lit char_const
36 %option reentrant yylineno noyywrap bison-bridge
37 %option extra-type="struct ctf_scanner *"
39 INTEGER_SUFFIX [ \n\t]*(U|UL|ULL|LU|LLU|Ul|Ull|lU|llU|u|uL|uLL|Lu|LLu|ul|ull|lu|llu)
44 UCHARLOWERCASE \\u{HEXDIGIT}{4}
45 UCHARUPPERCASE \\U{HEXDIGIT}{8}
46 ID_NONDIGIT {NONDIGIT}|{UCHARLOWERCASE}|{UCHARUPPERCASE}
47 IDENTIFIER {ID_NONDIGIT}({ID_NONDIGIT}|{DIGIT})*
48 ESCSEQ \\(\'|\"|\?|\\|a|b|f|n|r|t|v|{OCTALDIGIT}{1,3}|u{HEXDIGIT}{4}|U{HEXDIGIT}{8}|x{HEXDIGIT}+)
52 * Using start conditions to deal with comments
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);
62 "//" BEGIN(comment_sl);
63 <comment_sl>[^\n]*\n ++yylineno; BEGIN(INITIAL);
65 L\' BEGIN(char_const); return CHARACTER_CONSTANT_START;
66 \' BEGIN(char_const); return CHARACTER_CONSTANT_START;
67 <char_const>\' BEGIN(INITIAL); return SQUOTE;
69 L\" BEGIN(string_lit); return STRING_LITERAL_START;
70 \" BEGIN(string_lit); return STRING_LITERAL_START;
71 <string_lit>\" BEGIN(INITIAL); return DQUOTE;
73 <char_const,string_lit>ESCSEQ return ESCSEQ;
74 <char_const,string_lit>\n ; /* ignore */
75 <char_const,string_lit>. setstring(yyextra, yylval, yytext); return CHAR_STRING_TOKEN;
92 "..." return DOTDOTDOT;
96 align setstring(yyextra, yylval, yytext); return TOK_ALIGN;
97 const setstring(yyextra, yylval, yytext); return CONST;
98 char setstring(yyextra, yylval, yytext); return CHAR;
99 clock setstring(yyextra, yylval, yytext); return CLOCK;
100 double setstring(yyextra, yylval, yytext); return DOUBLE;
101 enum setstring(yyextra, yylval, yytext); return ENUM;
102 event setstring(yyextra, yylval, yytext); return EVENT;
103 floating_point setstring(yyextra, yylval, yytext); return FLOATING_POINT;
104 float setstring(yyextra, yylval, yytext); return FLOAT;
105 integer setstring(yyextra, yylval, yytext); return INTEGER;
106 int setstring(yyextra, yylval, yytext); return INT;
107 long setstring(yyextra, yylval, yytext); return LONG;
108 short setstring(yyextra, yylval, yytext); return SHORT;
109 signed setstring(yyextra, yylval, yytext); return SIGNED;
110 stream setstring(yyextra, yylval, yytext); return STREAM;
111 string setstring(yyextra, yylval, yytext); return STRING;
112 struct setstring(yyextra, yylval, yytext); return STRUCT;
113 trace setstring(yyextra, yylval, yytext); return TRACE;
114 typealias setstring(yyextra, yylval, yytext); return TYPEALIAS;
115 typedef setstring(yyextra, yylval, yytext); return TYPEDEF;
116 unsigned setstring(yyextra, yylval, yytext); return UNSIGNED;
117 variant setstring(yyextra, yylval, yytext); return VARIANT;
118 void setstring(yyextra, yylval, yytext); return VOID;
119 _Bool setstring(yyextra, yylval, yytext); return _BOOL;
120 _Complex setstring(yyextra, yylval, yytext); return _COMPLEX;
121 _Imaginary setstring(yyextra, yylval, yytext); return _IMAGINARY;
122 [1-9]{DIGIT}*{INTEGER_SUFFIX}? setstring(yyextra, yylval, yytext); return DECIMAL_CONSTANT;
123 0{OCTALDIGIT}*{INTEGER_SUFFIX}? setstring(yyextra, yylval, yytext); return OCTAL_CONSTANT;
124 0[xX]{HEXDIGIT}+{INTEGER_SUFFIX}? setstring(yyextra, yylval, yytext); return HEXADECIMAL_CONSTANT;
125 {IDENTIFIER} printf_debug("<IDENTIFIER %s>\n", yytext); setstring(yyextra, yylval, yytext); if (is_type(yyextra, yytext)) return ID_TYPE; else return IDENTIFIER;
126 [ \t\n]+ ; /* ignore */