106 lines
2.9 KiB
Text
106 lines
2.9 KiB
Text
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/* $NetBSD: scanner.l,v 1.1.1.1 2009/10/26 00:29:50 christos Exp $ */
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/*
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* This file is part of flex.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE.
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*/
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%{
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/* A template scanner file to build "scanner.c". */
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#include <stdio.h>
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#include <stdlib.h>
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#include "config.h"
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#define NUMBER 200
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#define WORD 201
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%}
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%option 8bit outfile="scanner.c" prefix="test"
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%option nounput nomain nodefault noyywrap
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%option warn reentrant
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%%
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[[:space:]]+ { }
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[[:digit:]]+ { printf("NUMBER "); fflush(stdout);}
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[[:alpha:]]+ { printf("WORD "); fflush(stdout);}
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. {
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fprintf(stderr,"*** Error: Unrecognized character '%c' while scanning.\n",
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yytext[0]);
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yyterminate();
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}
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<<EOF>> { printf("<<EOF>>\n"); yyterminate();}
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%%
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#define INPUT_STRING_1 "1234 foo bar"
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#define INPUT_STRING_2 "1234 foo bar *@&@&###@^$#&#*"
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int main(void);
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int
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main ()
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{
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char * buf;
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int len;
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YY_BUFFER_STATE state;
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yyscan_t scanner=NULL;
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/* Scan a good string. */
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printf("Testing: yy_scan_string(%s): ",INPUT_STRING_1); fflush(stdout);
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yylex_init(&scanner);
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state = yy_scan_string ( INPUT_STRING_1 ,scanner);
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yylex(scanner);
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yy_delete_buffer(state, scanner);
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yylex_destroy(scanner);
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/* Scan only the first 12 chars of a string. */
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printf("Testing: yy_scan_bytes(%s): ",INPUT_STRING_2); fflush(stdout);
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yylex_init(&scanner);
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state = yy_scan_bytes ( INPUT_STRING_2, 12 ,scanner);
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yylex(scanner);
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yy_delete_buffer(state,scanner);
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yylex_destroy(scanner);
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/* Scan directly from a buffer.
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We make a copy, since the buffer will be modified by flex.*/
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printf("Testing: yy_scan_buffer(%s): ",INPUT_STRING_1); fflush(stdout);
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len = strlen(INPUT_STRING_1) + 2;
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buf = (char*)malloc( len );
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strcpy( buf, INPUT_STRING_1);
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buf[ len -2 ] = 0; /* Flex requires two NUL bytes at end of buffer. */
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buf[ len -1 ] =0;
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yylex_init(&scanner);
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state = yy_scan_buffer( buf, len ,scanner);
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yylex(scanner);
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yy_delete_buffer(state,scanner);
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yylex_destroy(scanner);
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printf("TEST RETURNING OK.\n");
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return 0;
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}
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