legal_dbname.c

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#include <grass/gis.h>
#include <grass/dbmi.h>
#include <grass/glocale.h>

/* TODO: are we as restrictive here as for vector names? */

int db_legal_tablename(const char *s)
{
    char buf[GNAME_MAX];

    sprintf(buf, "%s", s);

    if (*s == '.' || *s == 0) {
        fprintf(stderr,
                _("Illegal table map name <%s>. May not contain '.' or 'NULL'.\n"),
                buf);
        return DB_FAILED;
    }

    /* file name must start with letter */
    if (!((*s >= 'A' && *s <= 'Z') || (*s >= 'a' && *s <= 'z'))) {
        fprintf(stderr,
                _("Illegal table map name <%s>. Must start with a letter.\n"),
                buf);
        return DB_FAILED;
    }

    for (s++; *s; s++)
        if (!
            ((*s >= 'A' && *s <= 'Z') || (*s >= 'a' && *s <= 'z') ||
             (*s >= '0' && *s <= '9') || *s == '_' || *s == '@')) {
            fprintf(stderr,
                    _("Illegal table map name <%s>. Character <%c> not allowed.\n"),
                    buf, *s);
            return DB_FAILED;
        }

    return DB_OK;
}