--- /dev/null
+%{
+/*
+ * lexer.l
+ *
+ * Common Trace Formal Lexer
+ *
+ * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#define BT_LOG_TAG "PLUGIN-CTF-METADATA-LEXER"
+#include "logging.h"
+
+#include <stdio.h>
+#include <ctype.h>
+#include "scanner.h"
+#include "parser.h"
+#include "ast.h"
+
+#define YY_FATAL_ERROR(_msg) BT_LOGF_STR(_msg)
+
+#define PARSE_INTEGER_LITERAL(base) \
+ do { \
+ errno = 0; \
+ yylval->ull = strtoull(yytext, NULL, base); \
+ if (errno) { \
+ _BT_LOGE_LINENO(yylineno, \
+ "Cannot parser constant integer: " \
+ "base=%d, text=\"%s\"", base, yytext); \
+ return CTF_ERROR; \
+ } \
+ } while (0)
+
+BT_HIDDEN
+void setstring(struct ctf_scanner *scanner, YYSTYPE *lvalp, const char *src);
+
+static void yyunput (int c, register char * yy_bp , yyscan_t yyscanner)
+ __attribute__((unused));
+static int input (yyscan_t yyscanner) __attribute__((unused));
+
+BT_HIDDEN
+int import_string(struct ctf_scanner *scanner, YYSTYPE *lvalp, const char *src, char delim);
+
+%}
+
+%x comment_ml comment_sl string_lit char_const
+%option reentrant yylineno noyywrap bison-bridge
+%option extra-type="struct ctf_scanner *"
+ /* bison-locations */
+INTEGER_SUFFIX (U|UL|ULL|LU|LLU|Ul|Ull|lU|llU|u|uL|uLL|Lu|LLu|ul|ull|lu|llu)
+DIGIT [0-9]
+NONDIGIT [a-zA-Z_]
+HEXDIGIT [0-9A-Fa-f]
+OCTALDIGIT [0-7]
+UCHARLOWERCASE \\u{HEXDIGIT}{4}
+UCHARUPPERCASE \\U{HEXDIGIT}{8}
+ID_NONDIGIT {NONDIGIT}|{UCHARLOWERCASE}|{UCHARUPPERCASE}
+IDENTIFIER {ID_NONDIGIT}({ID_NONDIGIT}|{DIGIT})*
+%%
+
+ /*
+ * Using start conditions to deal with comments
+ * and strings.
+ */
+
+"/*" BEGIN(comment_ml);
+<comment_ml>[^*\n]* /* eat anything that's not a '*' */
+<comment_ml>"*"+[^*/\n]* /* eat up '*'s not followed by '/'s */
+<comment_ml>\n
+<comment_ml>"*"+"/" BEGIN(INITIAL);
+
+"//"[^\n]*\n /* skip comment */
+
+L?\"(\\.|[^\\"])*\" { if (import_string(yyextra, yylval, yytext, '\"') < 0) return CTF_ERROR; else return CTF_STRING_LITERAL; }
+L?\'(\\.|[^\\'])*\' { if (import_string(yyextra, yylval, yytext, '\'') < 0) return CTF_ERROR; else return CTF_CHARACTER_LITERAL; }
+
+"[" return CTF_LSBRAC;
+"]" return CTF_RSBRAC;
+"(" return CTF_LPAREN;
+")" return CTF_RPAREN;
+"{" return CTF_LBRAC;
+"}" return CTF_RBRAC;
+"->" return CTF_RARROW;
+"*" return CTF_STAR;
+"+" return CTF_PLUS;
+"-" return CTF_MINUS;
+"<" return CTF_LT;
+">" return CTF_GT;
+:= return CTF_TYPEASSIGN;
+: return CTF_COLON;
+; return CTF_SEMICOLON;
+"..." return CTF_DOTDOTDOT;
+"." return CTF_DOT;
+= return CTF_EQUAL;
+"," return CTF_COMMA;
+align setstring(yyextra, yylval, yytext); return CTF_TOK_ALIGN;
+const setstring(yyextra, yylval, yytext); return CTF_CONST;
+char setstring(yyextra, yylval, yytext); return CTF_CHAR;
+clock setstring(yyextra, yylval, yytext); return CTF_CLOCK;
+double setstring(yyextra, yylval, yytext); return CTF_DOUBLE;
+enum setstring(yyextra, yylval, yytext); return CTF_ENUM;
+env setstring(yyextra, yylval, yytext); return CTF_ENV;
+event setstring(yyextra, yylval, yytext); return CTF_EVENT;
+floating_point setstring(yyextra, yylval, yytext); return CTF_FLOATING_POINT;
+float setstring(yyextra, yylval, yytext); return CTF_FLOAT;
+integer setstring(yyextra, yylval, yytext); return CTF_INTEGER;
+int setstring(yyextra, yylval, yytext); return CTF_INT;
+long setstring(yyextra, yylval, yytext); return CTF_LONG;
+short setstring(yyextra, yylval, yytext); return CTF_SHORT;
+signed setstring(yyextra, yylval, yytext); return CTF_SIGNED;
+stream setstring(yyextra, yylval, yytext); return CTF_STREAM;
+string setstring(yyextra, yylval, yytext); return CTF_STRING;
+struct setstring(yyextra, yylval, yytext); return CTF_STRUCT;
+trace setstring(yyextra, yylval, yytext); return CTF_TRACE;
+callsite setstring(yyextra, yylval, yytext); return CTF_CALLSITE;
+typealias setstring(yyextra, yylval, yytext); return CTF_TYPEALIAS;
+typedef setstring(yyextra, yylval, yytext); return CTF_TYPEDEF;
+unsigned setstring(yyextra, yylval, yytext); return CTF_UNSIGNED;
+variant setstring(yyextra, yylval, yytext); return CTF_VARIANT;
+void setstring(yyextra, yylval, yytext); return CTF_VOID;
+_Bool setstring(yyextra, yylval, yytext); return CTF_BOOL;
+_Complex setstring(yyextra, yylval, yytext); return CTF_COMPLEX;
+_Imaginary setstring(yyextra, yylval, yytext); return CTF_IMAGINARY;
+[1-9]{DIGIT}*{INTEGER_SUFFIX}? PARSE_INTEGER_LITERAL(10); return CTF_INTEGER_LITERAL;
+0{OCTALDIGIT}*{INTEGER_SUFFIX}? PARSE_INTEGER_LITERAL(8); return CTF_INTEGER_LITERAL;
+0[xX]{HEXDIGIT}+{INTEGER_SUFFIX}? PARSE_INTEGER_LITERAL(16); return CTF_INTEGER_LITERAL;
+
+{IDENTIFIER} BT_LOGV("Got identifier: id=\"%s\"", yytext); setstring(yyextra, yylval, yytext); if (is_type(yyextra, yytext)) return ID_TYPE; else return IDENTIFIER;
+[ \t\r\n] ; /* ignore */
+. _BT_LOGE_LINENO(yylineno, "Invalid character: char=\"%c\", val=0x%02x", isprint(yytext[0]) ? yytext[0] : '\0', yytext[0]); return CTF_ERROR;
+%%
projects / babeltrace.git / blobdiff