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tlvc.l@59c92fa19678 (annotated)

tlvc.l

Mon, 01 Sep 2025 00:14:59 +0800

author

Gong Zhile <gongzl@stu.hebust.edu.cn>

date

Mon, 01 Sep 2025 00:14:59 +0800

changeset 0

59c92fa19678

permissions

-rw-r--r--

Initial Lexer/Parser

0 59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	1	%{
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	2	#include <string.h>
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	3	#include <stdlib.h>
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	4	#include "tlvast.h"
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	5	#include "tlvc.tab.h"
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	6	%}
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	7
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	8	%option noyywrap
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	9	%option yylineno
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	10
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	11	%%
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	12	"message" { return MESSAGE; }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	13
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	14	"u8" { yylval.num = TLV_TYPE_U8; return TYPE; }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	15	"u16" { yylval.num = TLV_TYPE_U16; return TYPE; }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	16	"u32" { yylval.num = TLV_TYPE_U32; return TYPE; }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	17	"u64" { yylval.num = TLV_TYPE_U64; return TYPE; }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	18
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	19	"STRING" { yylval.num = TLV_TYPE_STRING; return TYPE; }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	20
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	21	0x[0-9a-fA-F]+ { yylval.num = (int)strtol(yytext,NULL,16); return NUMBER; }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	22
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	23	[a-zA-Z_][a-zA-Z0-9_]* { yylval.str = strdup(yytext); return IDENT; }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	24
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	25	[ \t\r\n]+ ; // skip whitespace
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	26	"{" { return '{'; }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	27	"}" { return '}'; }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	28	";" { return ';'; }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	29	. { fprintf(stderr,"Unexpected char: %c\n", yytext[0]); }
59c92fa19678 Initial Lexer/Parser Gong Zhile <gongzl@stu.hebust.edu.cn> parents: diff changeset	30	%%