ngspice/src/frontend/quote.c

57 lines
1.2 KiB
C

/**********
Copyright 1990 Regents of the University of California. All rights reserved.
Author: 1985 Wayne A. Christopher, U. C. Berkeley CAD Group
**********/
#include <string.h>
#include "ngspice/ngspice.h"
#include "ngspice/cpdefs.h"
/* Print a word */
void
cp_printword(char *string, FILE *fp)
{
char *s;
if (string)
for (s = string; *s; s++)
(void) putc((*s), fp);
}
/* Create a copy of the input string removing the enclosing quotes,
* if they are present */
char *
cp_unquote(const char *p_src)
{
if (!p_src) { /* case of no string */
return (char *) NULL;
}
const size_t len_src = strlen(p_src); /* input str length */
size_t len_dst;
/* If enclosed in quotes locate the source after the quote and
* make the destination length 2 chars less */
if (len_src >= 2 && *p_src == '"' && p_src[len_src - 1] == '"') {
len_dst = len_src - 2;
++p_src; /* step past first quote */
}
else { /* not enclosed in quotes */
len_dst = len_src;
}
/* Allocate string being returned and fill. */
char * const p_dst = TMALLOC(char, len_dst + 1);
strncpy(p_dst, p_src, len_dst);
p_dst[len_dst] = '\0';
return p_dst;
} /* end of function cp_unquote */