view netinstall/inilex.l @ 4709:db7068430402

Add explicit GPL v2 or later notices to Bill Perry's code, where such notices are missing. This is done with Bill Perry's stated permission, in private email to me.
author Jerry James <james@xemacs.org>
date Mon, 05 Oct 2009 11:08:59 -0600
parents 3078fd1074e8
children
line wrap: on
line source

%{
/*
 * Copyright (c) 2000, Red Hat, Inc.
 *
 *     This program is free software; you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation; either version 2 of the License, or
 *     (at your option) any later version.
 *
 *     A copy of the GNU General Public License can be found at
 *     http://www.gnu.org/
 *
 * Written by DJ Delorie <dj@cygnus.com>
 *
 */

/* tokenize the setup.ini files.  We parse a string which we've
   previously downloaded.  The program must call ini_init() to specify
   that string. */

#include "win32.h"
#include <string.h>
#include <stdlib.h>

#include "ini.h"
#include "iniparse.h"

#define YY_INPUT(buf,result,max_size) { result = ini_getchar(buf, max_size); }

static int ini_getchar(char *buf, int max_size);
static void ignore_line ();

%}

/*%option debug */
%option noyywrap
%option yylineno
%option never-interactive

STR	[a-zA-Z0-9_./-]+

%%

\"[^"]*\"		{ yylval = strdup (yytext+1);
			  yylval[strlen (yylval)-1] = 0;
			  return STRING; }

"setup-timestamp:"	return SETUP_TIMESTAMP;
"setup-version:"	return SETUP_VERSION;
"version:"		return VERSION;
"install:"		return INSTALL;
"type:"			return TYPE;
"source:"		return SOURCE;
"sdesc:"		return SDESC;
"ldesc:"		return LDESC;

^{STR}":"		ignore_line ();

"[curr]"		return T_CURR;
"[test]"		return T_TEST;
"[exp]"			return T_TEST;
"[prev]"		return T_PREV;
"["{STR}"]"		return T_UNKNOWN;

{STR}			{ yylval = strdup (yytext);
			  return STRING; }

[ \t\r]+		/* do nothing */

"#".*\n			/* ignore comments */

\n			{ return yytext[0]; }
.			{ return yytext[0]; }

%%

static char *input_string = 0;
static char *end_input_string;

void
ini_init(char *string)
{
  input_string = string;
  end_input_string = input_string + strlen(input_string);
}

static int
ini_getchar(char *buf, int max_size)
{
  if (input_string)
    {
      int avail = end_input_string - input_string;
      if (avail == 0)
	{
	  input_string = end_input_string = 0;
	  return 0;
	}
      if (avail > max_size)
	avail = max_size;
      memcpy(buf, input_string, avail);
      input_string += avail;
      return avail;
    }
  else
    return 0;
}

static void
ignore_line ()
{
  char c;
  while (c = input ())
    {
      if (c == EOF)
	return;
      if (c == '\n')
	return;
    }
}