key_value2.c

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#include <grass/gis.h>

int G_fwrite_key_value(FILE * fd, const struct Key_Value *kv)
{
    int n;
    int err;

    err = 0;
    for (n = 0; n < kv->nitems; n++)
        if (kv->value[n][0]) {
            if (EOF == fprintf(fd, "%s: %s\n", kv->key[n], kv->value[n]))
                err = -1;
        }
    return err;
}

struct Key_Value *G_fread_key_value(FILE * fd)
{
    struct Key_Value *kv;
    char *key, *value;
    char buf[1024];

    kv = G_create_key_value();
    if (kv == NULL)
        return NULL;
    while (G_getl2(buf, sizeof(buf) - 1, fd) != 0) {
        key = value = buf;
        while (*value && *value != ':')
            value++;
        if (*value != ':')
            continue;
        *value++ = 0;
        G_strip(key);
        G_strip(value);
        if (!G_set_key_value(key, value, kv)) {
            G_free_key_value(kv);
            return NULL;
        }
    }
    return kv;
}