squeeze.c

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#include <ctype.h>
#include <string.h>
#include <grass/gis.h>


/*
 * last modification: 12 aug 81, j w hamilton
 *
 * 1998-04-04  WBH
 *     Also squeezes out newlines -- easier to use with fgets()
 *
 * 1999-19-12 Werner Droege 
 *     changed line 37, line 48ff. -- return (strip_NL(line))
 */


char *G_squeeze(char *line)
{
    register char *f = line, *t = line;
    int l;

    /* skip over space at the beginning of the line. */
    while (isspace(*f))
        f++;

    while (*f)
        if (!isspace(*f))
            *t++ = *f++;
        else if (*++f)
            if (!isspace(*f))
                *t++ = ' ';
    *t = '\0';
    l = strlen(line) - 1;
    if (*(line + l) == '\n')
        *(line + l) = '\0';

    return line;
}