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/*
* Copyright (c) 2003, 2011 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/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <ctype.h>
#include "char.h"
#include "strbuf.h"
#define B BINARYCHAR
#define R REGEXCHAR
#define U URLCHAR
#define RU REGEXCHAR | URLCHAR
const unsigned char chartype[256] = {
#if '\n' == 0x0a && ' ' == 0x20 && '0' == 0x30 \
&& 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21
/* ASCII */
B, B, B, B, B, B, B, B, 0, 0, 0, 0, 0, 0, B, B,
B, B, B, B, B, B, B, B, B, B, B, 0, B, B, B, B,
0, U, 0, 0, R, 0, 0, U,RU,RU,RU, R, 0, U,RU, U, /* !"#$%&'()*+,-./ */
U, U, U, U, U, U, U, U, U, U, 0, 0, 0, 0, 0, R, /* 0123456789:;<=>? */
0, U, U, U, U, U, U, U, U, U, U, U, U, U, U, U, /* @ABCDEFGHIJKLMNO */
U, U, U, U, U, U, U, U, U, U, U, R, R, R, R, U, /* PQRSTUVWXYZ[\]^_ */
0, U, U, U, U, U, U, U, U, U, U, U, U, U, U, U, /* `abcdefghijklmno */
U, U, U, U, U, U, U, U, U, U, U, R, R, R, U, /* pqrstuvwxyz{|}~ */
#else
#error "Unsupported character encoding."
#endif
};
/**
* isregex: test whether or not regular expression
*
* @param[in] s string
* @return 1: is regex, 0: not regex
*/
int
isregex(const char *s)
{
int c;
while ((c = *s++) != '\0')
if (isregexchar(c))
return 1;
return 0;
}
/**
* quote string.
*
* Non-alphanumeric characters are quoted/escaped.
*
* Examples:
* 'a:a,a' => 'a\:a\,a'
*/
const char *
quote_string(const char *s)
{
STATIC_STRBUF(sb);
strbuf_clear(sb);
for (; *s; s++) {
if (!isalnum((unsigned char)*s))
strbuf_putc(sb, '\\');
strbuf_putc(sb, *s);
}
return strbuf_value(sb);
}
/**
* quote characters in the string.
*
* Examples:
* quote_char('a:a,a', :) => 'a\:a,a'
*/
const char *
quote_chars(const char *s, unsigned int c)
{
STATIC_STRBUF(sb);
strbuf_clear(sb);
for (; *s; s++) {
if ((unsigned char)*s == c)
strbuf_putc(sb, '\\');
strbuf_putc(sb, *s);
}
return strbuf_value(sb);
}
#if defined(__DJGPP__) || (defined(_WIN32) && !defined(__CYGWIN__))
#define SHELL_QUOTE '"'
#else
#define SHELL_QUOTE '\''
#endif
/**
* quote for shell.
*
* Examples:
* aaa => 'aaa'
* a'a => 'a'\''aa'
*/
const char *
quote_shell(const char *s)
{
STATIC_STRBUF(sb);
strbuf_clear(sb);
strbuf_putc(sb, SHELL_QUOTE);
#if defined(__DJGPP__) || (defined(_WIN32) && !defined(__CYGWIN__))
strbuf_puts(sb, s);
#else
for (; *s; s++) {
if (*s == SHELL_QUOTE) {
strbuf_putc(sb, SHELL_QUOTE);
strbuf_putc(sb, '\\');
strbuf_putc(sb, SHELL_QUOTE);
strbuf_putc(sb, SHELL_QUOTE);
} else
strbuf_putc(sb, *s);
}
#endif
strbuf_putc(sb, SHELL_QUOTE);
return strbuf_value(sb);
}
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