mapcase.c

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#include <grass/gis.h>
/*
 * Map uppercase A-Z to lower case a-z
 *
 */


char *G_tolcase(char *string)
{
    char *p;

    for (p = string; *p; p++) {
        /* convert to lower case */
        if (*p >= 'A' && *p <= 'Z')
            *p -= 'A' - 'a';
    }

    return (string);
}


/*
 * Map lowercase a-z to uppercase A-Z
 *
 */


char *G_toucase(char *string)
{
    char *p;

    for (p = string; *p; p++) {
        /* convert to upper case */
        if (*p >= 'A' && *p <= 'z')
            *p += 'A' - 'a';
    }

    return (string);
}