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authorManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-27 14:28:30 +0100
committerManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-27 14:28:30 +0100
commita9a31b1de5776a3b08a82101a4fa711294f0dd1d (patch)
tree159134a624e51509f40ed8823249f09a70d1dda3 /lib/unigbrk.in.h
parent5f2b09982312c98863eb9a8dfe2c608b81f58259 (diff)
Imported Upstream version 0.9.6+really0.9.3upstream/0.9.6+really0.9.3
Diffstat (limited to 'lib/unigbrk.in.h')
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1 files changed, 0 insertions, 129 deletions
diff --git a/lib/unigbrk.in.h b/lib/unigbrk.in.h
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-/* Grapheme cluster breaks in Unicode strings.
- Copyright (C) 2010-2015 Free Software Foundation, Inc.
- Written by Ben Pfaff <blp@cs.stanford.edu>, 2010.
-
- This program is free software: you can redistribute it and/or modify it
- under the terms of the GNU Lesser 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
-
-#ifndef _UNIGBRK_H
-#define _UNIGBRK_H
-
-/* Get bool. */
-#include <unistring/stdbool.h>
-
-/* Get size_t. */
-#include <stddef.h>
-
-#include "unitypes.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* ========================================================================= */
-
-/* Property defined in Unicode Standard Annex #29, section "Grapheme Cluster
- Boundaries"
- <http://unicode.org/reports/tr29/#Grapheme_Cluster_Boundaries> */
-
-/* Possible values of the Grapheme_Cluster_Break property.
- This enumeration may be extended in the future. */
-enum
-{
- GBP_OTHER = 0,
- GBP_CR = 1,
- GBP_LF = 2,
- GBP_CONTROL = 3,
- GBP_EXTEND = 4,
- GBP_PREPEND = 5,
- GBP_SPACINGMARK = 6,
- GBP_L = 7,
- GBP_V = 8,
- GBP_T = 9,
- GBP_LV = 10,
- GBP_LVT = 11,
- GBP_RI = 12
-};
-
-/* Return the Grapheme_Cluster_Break property of a Unicode character. */
-extern int
- uc_graphemeclusterbreak_property (ucs4_t uc)
- _UC_ATTRIBUTE_CONST;
-
-/* ========================================================================= */
-
-/* Grapheme cluster breaks. */
-
-/* Returns true if there is a grapheme cluster boundary between Unicode code
- points A and B. A "grapheme cluster" is an approximation to a
- user-perceived character, which sometimes corresponds to multiple code
- points. For example, an English letter followed by an acute accent can be
- expressed as two consecutive Unicode code points, but it is perceived by the
- user as only a single character and therefore constitutes a single grapheme
- cluster.
-
- Implements extended (not legacy) grapheme cluster rules, because UAX #29
- indicates that they are preferred.
-
- Use A == 0 or B == 0 to indicate start of text or end of text,
- respectively. */
-extern bool
- uc_is_grapheme_break (ucs4_t a, ucs4_t b)
- _UC_ATTRIBUTE_CONST;
-
-/* Returns the start of the next grapheme cluster following S, or NULL if the
- end of the string has been reached. */
-extern const uint8_t *
- u8_grapheme_next (const uint8_t *s, const uint8_t *end)
- _UC_ATTRIBUTE_PURE;
-extern const uint16_t *
- u16_grapheme_next (const uint16_t *s, const uint16_t *end)
- _UC_ATTRIBUTE_PURE;
-extern const uint32_t *
- u32_grapheme_next (const uint32_t *s, const uint32_t *end)
- _UC_ATTRIBUTE_PURE;
-
-/* Returns the start of the previous grapheme cluster before S, or NULL if the
- start of the string has been reached. */
-extern const uint8_t *
- u8_grapheme_prev (const uint8_t *s, const uint8_t *start)
- _UC_ATTRIBUTE_PURE;
-extern const uint16_t *
- u16_grapheme_prev (const uint16_t *s, const uint16_t *start)
- _UC_ATTRIBUTE_PURE;
-extern const uint32_t *
- u32_grapheme_prev (const uint32_t *s, const uint32_t *start)
- _UC_ATTRIBUTE_PURE;
-
-/* Determine the grapheme cluster boundaries in S, and store the result at
- p[0..n-1]. p[i] = 1 means that a new grapheme cluster begins at s[i]. p[i]
- = 0 means that s[i-1] and s[i] are part of the same grapheme cluster. p[0]
- will always be 1.
- */
-extern void
- u8_grapheme_breaks (const uint8_t *s, size_t n, char *p);
-extern void
- u16_grapheme_breaks (const uint16_t *s, size_t n, char *p);
-extern void
- u32_grapheme_breaks (const uint32_t *s, size_t n, char *p);
-extern void
- ulc_grapheme_breaks (const char *s, size_t n, char *p);
-
-/* ========================================================================= */
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* _UNIGBRK_H */