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.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28 #define BT_LOG_OUTPUT_LEVEL ctf_plugin_metadata_log_level
29 #define BT_LOG_TAG "PLUGIN-CTF-METADATA-LEXER"
35 #include "parser-wrap.h"
38 #define YY_FATAL_ERROR(_msg) BT_LOGF_STR(_msg)
40 #define PARSE_INTEGER_LITERAL(base) \
43 yylval->ull = strtoull(yytext, NULL, base); \
45 _BT_LOGE_LINENO(yylineno, \
46 "Cannot parser constant integer: " \
47 "base=%d, text=\"%s\"", base, yytext); \
53 %x comment_ml comment_sl string_lit char_const
54 %option reentrant yylineno noyywrap bison-bridge
55 %option extra-type="struct ctf_scanner *"
57 INTEGER_SUFFIX (U|UL|ULL|LU|LLU|Ul|Ull|lU|llU|u|uL|uLL|Lu|LLu|ul|ull|lu|llu)
62 UCHARLOWERCASE \\u{HEXDIGIT}{4}
63 UCHARUPPERCASE \\U{HEXDIGIT}{8}
64 ID_NONDIGIT {NONDIGIT}|{UCHARLOWERCASE}|{UCHARUPPERCASE}
65 IDENTIFIER {ID_NONDIGIT}({ID_NONDIGIT}|{DIGIT})*
69 * Using start conditions to deal with comments
73 "/*" BEGIN(comment_ml);
74 <comment_ml>[^*\n]* /* eat anything that's not a '*' */
75 <comment_ml>"*"+[^*/\n]* /* eat up '*'s not followed by '/'s */
77 <comment_ml>"*"+"/" BEGIN(INITIAL);
79 "//"[^\n]*\n /* skip comment */
81 L?\"(\\.|[^\\"])*\" { if (import_string(yyextra, yylval, yytext, '\"') < 0) return CTF_ERROR; else return CTF_STRING_LITERAL; }
82 L?\'(\\.|[^\\'])*\' { if (import_string(yyextra, yylval, yytext, '\'') < 0) return CTF_ERROR; else return CTF_CHARACTER_LITERAL; }
84 "[" return CTF_LSBRAC;
85 "]" return CTF_RSBRAC;
86 "(" return CTF_LPAREN;
87 ")" return CTF_RPAREN;
90 "->" return CTF_RARROW;
96 := return CTF_TYPEASSIGN;
98 ; return CTF_SEMICOLON;
99 "..." return CTF_DOTDOTDOT;
102 "," return CTF_COMMA;
103 align setstring(yyextra, yylval, yytext); return CTF_TOK_ALIGN;
104 const setstring(yyextra, yylval, yytext); return CTF_CONST;
105 char setstring(yyextra, yylval, yytext); return CTF_CHAR;
106 clock setstring(yyextra, yylval, yytext); return CTF_CLOCK;
107 double setstring(yyextra, yylval, yytext); return CTF_DOUBLE;
108 enum setstring(yyextra, yylval, yytext); return CTF_ENUM;
109 env setstring(yyextra, yylval, yytext); return CTF_ENV;
110 event setstring(yyextra, yylval, yytext); return CTF_EVENT;
111 floating_point setstring(yyextra, yylval, yytext); return CTF_FLOATING_POINT;
112 float setstring(yyextra, yylval, yytext); return CTF_FLOAT;
113 integer setstring(yyextra, yylval, yytext); return CTF_INTEGER;
114 int setstring(yyextra, yylval, yytext); return CTF_INT;
115 long setstring(yyextra, yylval, yytext); return CTF_LONG;
116 short setstring(yyextra, yylval, yytext); return CTF_SHORT;
117 signed setstring(yyextra, yylval, yytext); return CTF_SIGNED;
118 stream setstring(yyextra, yylval, yytext); return CTF_STREAM;
119 string setstring(yyextra, yylval, yytext); return CTF_STRING;
120 struct setstring(yyextra, yylval, yytext); return CTF_STRUCT;
121 trace setstring(yyextra, yylval, yytext); return CTF_TRACE;
122 callsite setstring(yyextra, yylval, yytext); return CTF_CALLSITE;
123 typealias setstring(yyextra, yylval, yytext); return CTF_TYPEALIAS;
124 typedef setstring(yyextra, yylval, yytext); return CTF_TYPEDEF;
125 unsigned setstring(yyextra, yylval, yytext); return CTF_UNSIGNED;
126 variant setstring(yyextra, yylval, yytext); return CTF_VARIANT;
127 void setstring(yyextra, yylval, yytext); return CTF_VOID;
128 _Bool setstring(yyextra, yylval, yytext); return CTF_BOOL;
129 _Complex setstring(yyextra, yylval, yytext); return CTF_COMPLEX;
130 _Imaginary setstring(yyextra, yylval, yytext); return CTF_IMAGINARY;
131 [1-9]{DIGIT}*{INTEGER_SUFFIX}? PARSE_INTEGER_LITERAL(10); return CTF_INTEGER_LITERAL;
132 0{OCTALDIGIT}*{INTEGER_SUFFIX}? PARSE_INTEGER_LITERAL(8); return CTF_INTEGER_LITERAL;
133 0[xX]{HEXDIGIT}+{INTEGER_SUFFIX}? PARSE_INTEGER_LITERAL(16); return CTF_INTEGER_LITERAL;
135 {IDENTIFIER} BT_LOGT("Got identifier: id=\"%s\"", yytext); setstring(yyextra, yylval, yytext); if (is_type(yyextra, yytext)) return ID_TYPE; else return IDENTIFIER;
136 [ \t\r\n] ; /* ignore */
137 . _BT_LOGE_LINENO(yylineno, "Invalid character: char=\"%c\", val=0x%02x", isprint((unsigned char) yytext[0]) ? yytext[0] : '\0', yytext[0]); return CTF_ERROR;