source: trunk/third/nmh/sbr/trimcpy.c @ 12455

/*
 * trimcpy.c -- strip leading and trailing whitespace,
 *           -- replace internal whitespace with spaces,
 *           -- then return a copy.
 *
 * $Id: trimcpy.c,v 1.1.1.1 1999-02-07 18:14:10 danw Exp $
 */

#include <h/mh.h>


char *
trimcpy (char *cp)
{
    char *sp;

    /* skip over leading whitespace */
    while (isspace(*cp))
        cp++;

    /* start at the end and zap trailing whitespace */
    for (sp = cp + strlen(cp) - 1; sp >= cp; sp--) {
        if (isspace(*sp))
            *sp = '\0';
        else
            break;
    }

    /* replace remaining whitespace with spaces */
    for (sp = cp; *sp; sp++) {
        if (isspace(*sp))
            *sp = ' ';
    }

    /* now return a copy */
    return getcpy(cp);
}