## root/libutil/char.h(154.html)

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## INCLUDED FROM

    /*
     * Copyright (c) 2003 Tama Communications Corporation
     *
     * This file is part of GNU GLOBAL.
     *
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU General Public License as published by
     * the Free Software Foundation, either version 3 of the License, or
     * (at your option) any later version.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program.  If not, see <http://www.gnu.org/licenses/>.
     */

    #ifndef _CHAR_H_
    #define _CHAR_H_

    extern const unsigned char chartype[256];

    #define REGEXCHAR               1
    #define URLCHAR                 2
    #define test_chartype(c, t)     (chartype[(unsigned char)(c)] & (t))

    /* test whether or not regular expression char. */
    #define isregexchar(c)          test_chartype(c, REGEXCHAR)

    /* test whether can be included in URL without escaping. */
    #define isurlchar(c)            test_chartype(c, URLCHAR)

    int isregex(const char *);
    const char *quote_string(const char *);

    #endif /* ! _CHAR_H_ */

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