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ccc35e2647
The device-mapper directory now holds a copy of libdm source. At the moment this code is identical to libdm. Over time code will migrate out to appropriate places (see doc/refactoring.txt). The libdm directory still exists, and contains the source for the libdevmapper shared library, which we will continue to ship (though not neccessarily update). All code using libdm should now use the version in device-mapper.
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
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*
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* This file is part of the device-mapper userspace tools.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _DM_PARSE_REGEX_H
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#define _DM_PARSE_REGEX_H
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enum {
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CAT,
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STAR,
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PLUS,
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OR,
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QUEST,
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CHARSET
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};
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/*
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* We're never going to be running the regex on non-printable
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* chars, so we can use a couple of these chars to represent the
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* start and end of a string.
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*/
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#define HAT_CHAR 0x2
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#define DOLLAR_CHAR 0x3
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#define TARGET_TRANS '\0'
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struct rx_node {
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int type;
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dm_bitset_t charset;
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struct rx_node *left, *right;
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/* used to build the dfa for the toker */
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unsigned charset_index;
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int nullable, final;
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dm_bitset_t firstpos;
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dm_bitset_t lastpos;
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dm_bitset_t followpos;
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};
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struct rx_node *rx_parse_str(struct dm_pool *mem, const char *str);
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struct rx_node *rx_parse_tok(struct dm_pool *mem,
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const char *begin, const char *end);
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#endif
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