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libjit/tools/gen-ops-scanner.l  view on Meta::CPAN

 */

#include "gen-ops-parser.h"
#include <config.h>
#include <stdio.h>
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#elif defined(HAVE_STRINGS_H)
# include <strings.h>
#endif

#ifndef HAVE_UNISTD_H
# define YY_NO_UNISTD_H
#endif

extern YYSTYPE yylval;

/*
 * Current file and line number.
 */
char *genops_filename = "";
long genops_linenum = 1;

/*
 * Return a token code from the lexical analyser.
 */
#define	RETURNTOK(x)		return (x)

/*
 * Forward declarations.
 */
static void genops_skip_comment(void);
static char *genops_read_code_block(void);
static char *genops_read_header_block(void);
static char *genops_read_literal(void);

/*
 * Duplicate a string.
 */
static char *genops_strdup(const char *str)
{
	char *new_str;
	if(!str)
	{
		return 0;
	}
	new_str = (char *)malloc(strlen(str) + 1);
	if(!new_str)
	{
		return 0;
	}
	strcpy(new_str, str);
	return new_str;
}

%}

%option outfile="lex.yy.c"
%option noyywrap
%option nounput

DIGIT			[0-9]
IDALPHA			[a-zA-Z_]
WHITE			[ \t\v\r\f]

%%

"empty"			{ RETURNTOK(K_EMPTY); }
"int"			{ RETURNTOK(K_INT); }
"long"			{ RETURNTOK(K_LONG); }
"ptr"			{ RETURNTOK(K_PTR); }
"float32"		{ RETURNTOK(K_FLOAT32); }
"float64"		{ RETURNTOK(K_FLOAT64); }
"nfloat"		{ RETURNTOK(K_NFLOAT); }
"any"			{ RETURNTOK(K_ANY); }
"neg"			{ RETURNTOK(K_NEG); }
"<<"			{ RETURNTOK(K_SHL); }
">>"			{ RETURNTOK(K_SHR); }
"shr_un"		{ RETURNTOK(K_SHR_UN); }
"=="			{ RETURNTOK(K_EQ); }
"!="			{ RETURNTOK(K_NE); }
"<="			{ RETURNTOK(K_LE); }
">="			{ RETURNTOK(K_GE); }
"address_of"		{ RETURNTOK(K_ADDRESS_OF); }
"address_of_label"	{ RETURNTOK(K_ADDRESS_OF_LABEL); }
"branch"		{ RETURNTOK(K_BRANCH); }
"call"			{ RETURNTOK(K_CALL); }
"call_external"		{ RETURNTOK(K_CALL_EXTERNAL); }
"jump_table"		{ RETURNTOK(K_JUMP_TABLE); }
"op_def"		{ RETURNTOK(K_OP_DEF); }
"op_intrinsic"		{ RETURNTOK(K_OP_INTRINSIC); }
"op_type"		{ RETURNTOK(K_OP_TYPE); }
"op_values"		{ RETURNTOK(K_OP_VALUES); }
"opcodes"		{ RETURNTOK(K_OPCODES); }
"reg"			{ RETURNTOK(K_REG); }
"%option"		{ RETURNTOK(K_POPTION); }
"i_i"			{ RETURNTOK(K_i_i); }
"i_ii"			{ RETURNTOK(K_i_ii); }
"i_piii"		{ RETURNTOK(K_i_piii); }
"i_iI"			{ RETURNTOK(K_i_iI); }
"i_II"			{ RETURNTOK(K_i_II); }
"I_I"			{ RETURNTOK(K_I_I); }
"I_II"			{ RETURNTOK(K_I_II); }
"i_pIII"		{ RETURNTOK(K_i_pIII); }
"l_l"			{ RETURNTOK(K_l_l); }
"l_ll"			{ RETURNTOK(K_l_ll); }
"i_plll"		{ RETURNTOK(K_i_plll); }
"i_l"			{ RETURNTOK(K_i_l); }
"i_ll"			{ RETURNTOK(K_i_ll); }
"l_lI"			{ RETURNTOK(K_l_lI); }
"L_L"			{ RETURNTOK(K_L_L); }
"L_LL"			{ RETURNTOK(K_L_LL); }
"i_pLLL"		{ RETURNTOK(K_i_pLLL); }
"i_LL"			{ RETURNTOK(K_i_LL); }
"L_LI"			{ RETURNTOK(K_L_LI); }
"f_f"			{ RETURNTOK(K_f_f); }
"f_ff"			{ RETURNTOK(K_f_ff); }
"i_f"			{ RETURNTOK(K_i_f); }