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/*
* trimcpy.c -- strip leading and trailing whitespace,
* -- replace internal whitespace with spaces,
* -- then return a copy.
*
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
*/
#include <h/mh.h>
#include <h/utils.h>
char *
trimcpy (char *cp)
{
char *sp;
/* skip over leading whitespace */
while (isspace((unsigned char) *cp))
cp++;
/* start at the end and zap trailing whitespace */
for (sp = cp + strlen(cp) - 1; sp >= cp; sp--) {
if (isspace((unsigned char) *sp))
*sp = '\0';
else
break;
}
/* replace remaining whitespace with spaces */
for (sp = cp; *sp; sp++) {
if (isspace((unsigned char) *sp))
*sp = ' ';
}
/* now return a copy */
return getcpy(cp);
}
/*
* cpytrim() -- return a copy of the argument with:
* -- stripped leading and trailing whitespace, and
* -- internal whitespace replaced with spaces.
*
* This code is Copyright (c) 2013, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
*/
char *
cpytrim (const char *sp) {
char *dp;
char *cp;
/* skip over leading whitespace */
while (isspace ((unsigned char) *sp)) ++sp;
dp = add (sp, NULL);
/* start at the end and zap trailing whitespace */
for (cp = dp + strlen (dp) - 1;
cp >= dp && isspace ((unsigned char) *cp);
*cp-- = '\0') continue;
/* replace remaining whitespace with spaces */
for (cp = dp; *cp; ++cp) {
if (isspace ((unsigned char) *cp)) *cp = ' ';
}
return dp;
}
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