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/* $Id: plugin_string.c,v 1.10 2006/07/30 11:29:02 lfcorreia Exp $
*
* string plugin
*
* Copyright (C) 2003, 2004 Michael Reinelt <reinelt@eunet.at>
* Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
*
* This file is part of LCD4Linux.
*
* LCD4Linux 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, or (at your option)
* any later version.
*
* LCD4Linux is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* $Log: plugin_string.c,v $
* Revision 1.10 2006/07/30 11:29:02 lfcorreia
* Make changes suggested by Michael, only one init function is needed
*
* Revision 1.9 2006/07/29 21:12:31 lfcorreia
* Add UPPERCASE string plugin function
*
* Revision 1.8 2005/05/08 04:32:45 reinelt
* CodingStyle added and applied
*
* Revision 1.7 2005/01/18 06:30:23 reinelt
* added (C) to all copyright statements
*
* Revision 1.6 2004/06/26 12:05:00 reinelt
*
* uh-oh... the last CVS log message messed up things a lot...
*
* Revision 1.5 2004/06/26 09:27:21 reinelt
*
* added '-W' to CFLAGS
* changed all C++ comments to C ones
* cleaned up a lot of signed/unsigned mistakes
*
* Revision 1.4 2004/03/03 03:47:04 reinelt
* big patch from Martin Hejl:
* - use qprintf() where appropriate
* - save CPU cycles on gettimeofday()
* - add quit() functions to free allocated memory
* - fixed lots of memory leaks
*
* Revision 1.3 2004/01/29 04:40:02 reinelt
* every .c file includes "config.h" now
*
* Revision 1.2 2004/01/11 18:26:02 reinelt
* further widget and layout processing
*
* Revision 1.1 2003/12/19 05:50:34 reinelt
* added plugin_math.c and plugin_string.c
*
*/
/*
* exported functions:
*
* int plugin_init_string (void)
* adds some handy string functions
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "debug.h"
#include "plugin.h"
static void my_strlen(RESULT * result, RESULT * arg1)
{
double value = strlen(R2S(arg1));
SetResult(&result, R_NUMBER, &value);
}
/* 'upcase' function (shamelessly stolen from plugin_sample.c)*/
/* takes one argument, a string */
/* returns the string in upper case letters */
static void my_upcase(RESULT * result, RESULT * arg1)
{
char *value, *p;
/* create a local copy of the argument */
/* Do *NOT* try to modify the original string! */
value = strdup(R2S(arg1));
/* process the string */
for (p = value; *p != '\0'; p++)
*p = toupper(*p);
/* store result */
/* when called with R_STRING, it assumes the */
/* next parameter to be a pointer to a string */
/* 'value' is already a char*, so use 'value', not '&value' */
SetResult(&result, R_STRING, value);
/* free local copy again */
/* Note that SetResult() makes its own string copy */
free(value);
}
int plugin_init_string(void)
{
/* register some basic string functions */
AddFunction("strlen", 1, my_strlen);
/* register my UPPERCASE transforming function */
AddFunction("strupper", 1, my_upcase);
return 0;
}
void plugin_exit_string(void)
{
/* empty */
}
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