Imported Upstream version 0.9.6upstream/0.9.6

1 files changed, 110 insertions, 0 deletions

diff --git a/lib/unilbrk.in.h b/lib/unilbrk.in.h
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+/* Line breaking of Unicode strings.
+   Copyright (C) 2001-2003, 2005-2015 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2001.
+
+   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 _UNILBRK_H
+#define _UNILBRK_H
+
+/* Get size_t.  */
+#include <stddef.h>
+
+#include "unitypes.h"
+
+/* Get locale_charset() declaration.  */
+#include <unistring/localcharset.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* These functions are locale dependent.  The encoding argument identifies
+   the encoding (e.g. "ISO-8859-2" for Polish).  */
+
+
+/* Line breaking.  */
+
+enum
+{
+  UC_BREAK_UNDEFINED,
+  UC_BREAK_PROHIBITED,
+  UC_BREAK_POSSIBLE,
+  UC_BREAK_MANDATORY,
+  UC_BREAK_HYPHENATION
+};
+
+/* Determine the line break points in S, and store the result at p[0..n-1].
+   p[i] = UC_BREAK_MANDATORY means that s[i] is a line break character.
+   p[i] = UC_BREAK_POSSIBLE means that a line break may be inserted between
+          s[i-1] and s[i].
+   p[i] = UC_BREAK_HYPHENATION means that a hyphen and a line break may be
+          inserted between s[i-1] and s[i].  But beware of language dependent
+          hyphenation rules.
+   p[i] = UC_BREAK_PROHIBITED means that s[i-1] and s[i] must not be separated.
+ */
+extern void
+       u8_possible_linebreaks (const uint8_t *s, size_t n,
+                               const char *encoding, char *p);
+extern void
+       u16_possible_linebreaks (const uint16_t *s, size_t n,
+                                const char *encoding, char *p);
+extern void
+       u32_possible_linebreaks (const uint32_t *s, size_t n,
+                                const char *encoding, char *p);
+extern void
+       ulc_possible_linebreaks (const char *s, size_t n,
+                                const char *encoding, char *p);
+
+/* Choose the best line breaks, assuming the uc_width function.
+   The string is s[0..n-1].  The maximum number of columns per line is given
+   as WIDTH.  The starting column of the string is given as START_COLUMN.
+   If the algorithm shall keep room after the last piece, they can be given
+   as AT_END_COLUMNS.
+   o is an optional override; if o[i] != UC_BREAK_UNDEFINED, o[i] takes
+   precedence over p[i] as returned by the *_possible_linebreaks function.
+   The given ENCODING is used for disambiguating widths in uc_width.
+   Return the column after the end of the string, and store the result at
+   p[0..n-1].
+ */
+extern int
+       u8_width_linebreaks (const uint8_t *s, size_t n, int width,
+                            int start_column, int at_end_columns,
+                            const char *o, const char *encoding,
+                            char *p);
+extern int
+       u16_width_linebreaks (const uint16_t *s, size_t n, int width,
+                             int start_column, int at_end_columns,
+                             const char *o, const char *encoding,
+                             char *p);
+extern int
+       u32_width_linebreaks (const uint32_t *s, size_t n, int width,
+                             int start_column, int at_end_columns,
+                             const char *o, const char *encoding,
+                             char *p);
+extern int
+       ulc_width_linebreaks (const char *s, size_t n, int width,
+                             int start_column, int at_end_columns,
+                             const char *o, const char *encoding,
+                             char *p);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _UNILBRK_H */