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/* misc.c */
/* From GNUPLOT - util.c */
/*
* Copyright (C) 1986 - 1993 Thomas Williams, Colin Kelley
*
* Permission to use, copy, and distribute this software and its
* documentation for any purpose with or without fee is hereby granted,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.
*
* Permission to modify the software is granted, but not the right to
* distribute the modified code. Modifications are to be distributed
* as patches to released version.
*
* This software is provided "as is" without express or implied warranty.
*
*
* AUTHORS
*
* Original Software:
* Thomas Williams, Colin Kelley.
* Gnuplot 2.0 additions:
* Russell Lang, Dave Kotz, John Campbell.
* Gnuplot 3.0 additions:
* Gershon Elber and many others.
* Scilab-2.3 : changes for scilab
* (1997) : Jean-Philippe Chancelier
*/
#include <ctype.h>
#include <setjmp.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h> /* for malloc */
#include <string.h>
#include <math.h>
//#include "plot.h"
#ifndef STRICT
#define STRICT
#endif
/*#include <windows.h>
#include "wgnuplib.h"*/
#include "wresource.h"
#include "wcommon.h"
#include "Messages.h"
#include "Warnings.h"
#include "Errors.h"
#include "../os_specific/win_mem_alloc.h" /* MALLOC */
extern char input_line[];
extern jmp_buf env; /* from plot.c */
/****************************************************************
*alloc:
* allocate memory
* This is a protected version of malloc. It causes an int_error
* if there is not enough memory. If message is NULL, we
* allow NULL return. Otherwise, we handle the error, using the
* message to create the int_error string. Note cp/sp_extend uses realloc,
* so it depends on this using malloc().
*****************************************************************/
char * alloc (unsigned long size, char *message)
/* unsigned long size; # of bytes */
/* char *message; description of what is being allocated */
{
char *p; /* the new allocation */
char errbuf[100]; /* error message string */
p = MALLOC ((size_t) size); /* try again */
if (p == (char *) NULL)
{
/* really out of memory */
if (message != NULL)
{
(void) sprintf (errbuf, MSG_ERROR75, message);
int_error (errbuf, NO_CARET);
/* NOTREACHED */
}
/* else we return NULL */
}
return (p);
}
/******************************************************
* find char c in string str; return p such that str[p]==c;
* if c not in str then p=strlen(str)
*****************************************************/
int instring (char *str, char c)
{
int pos = 0;
while (str != NULL && *str != '\0' && c != *str)
{
str++;
pos++;
}
return (pos);
}
void
int_error (char *str, int t_num)
{
/* reprint line if screen has been written to */
if (t_num != NO_CARET)
{ /* put caret under error */
sciprint ("\n%s%s\n", "-->", input_line);
}
sciprint ("\t%s\n\n", str);
longjmp (env, TRUE); /* bail out to command line */
}
/********************************************/
/* Lower-case the given string (DFK) */
/* Done in place. */
/********************************************/
void
lower_case (char *s)
{
register char *p = s;
while (*p != '\0')
{
if (isupper ((int) *p))
*p = tolower (*p);
p++;
}
}
/********************************************/
/* Squash spaces in the given string (DFK) */
/* That is, reduce all multiple white-space chars to single spaces */
/* Done in place. */
/********************************************/
void
squash_spaces (char *s)
{
register char *r = s; /* reading point */
register char *w = s; /* writing point */
int space = FALSE; /* TRUE if we've already copied a space */
for (w = r = s; *r != '\0'; r++)
{
if (isspace ((int) *r))
{
/* white space; only copy if we haven't just copied a space */
if (!space)
{
space = TRUE;
*w++ = ' ';
} /* else ignore multiple spaces */
}
else
{
/* non-space character; copy it and clear flag */
*w++ = *r;
space = FALSE;
}
}
*w = '\0'; /* null terminate string */
}
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