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authorJörg Frings-Fürst <debian@jff.email>2022-01-08 11:51:07 +0100
committerJörg Frings-Fürst <debian@jff.email>2022-01-08 11:51:07 +0100
commitbe8efac78d067c138ad8dda03df4336e73f94887 (patch)
tree5f5254a628ba0ef72065b93d949d1c985742ea8e /lib/unilbrk/u32-width-linebreaks.c
parent7b65dbd4ebade81d504cfe5e681292a58ad1fdf0 (diff)
New upstream version 1.0upstream/1.0
Diffstat (limited to 'lib/unilbrk/u32-width-linebreaks.c')
-rw-r--r--lib/unilbrk/u32-width-linebreaks.c80
1 files changed, 53 insertions, 27 deletions
diff --git a/lib/unilbrk/u32-width-linebreaks.c b/lib/unilbrk/u32-width-linebreaks.c
index 418d734..6101b0f 100644
--- a/lib/unilbrk/u32-width-linebreaks.c
+++ b/lib/unilbrk/u32-width-linebreaks.c
@@ -1,48 +1,49 @@
/* Line breaking of UTF-32 strings.
- Copyright (C) 2001-2003, 2006-2018 Free Software Foundation, Inc.
+ Copyright (C) 2001-2003, 2006-2022 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 either:
-
- * 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.
-
- or
-
- * the GNU General Public License as published by the Free
- Software Foundation; either version 2 of the License, or (at your
- option) any later version.
-
- or both in parallel, as here.
- This program is distributed in the hope that it will be useful,
+ This file is free software.
+ It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
+ You can redistribute it and/or modify it under either
+ - the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version, or
+ - the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option)
+ any later version, or
+ - the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
+
+ This file 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.
+ Lesser General Public License and the GNU 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 <https://www.gnu.org/licenses/>. */
+ You should have received a copy of the GNU Lesser General Public
+ License and of the GNU General Public License along with this
+ program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include "unilbrk.h"
+#include "unilbrk/internal.h"
+#include "unilbrk/lbrktables.h"
#include "uniwidth.h"
-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)
+static int
+u32_width_linebreaks_internal (const uint32_t *s, size_t n,
+ int width, int start_column, int at_end_columns,
+ const char *o, const char *encoding, int cr,
+ char *p)
{
const uint32_t *s_end;
char *last_p;
int last_column;
int piece_width;
- u32_possible_linebreaks (s, n, encoding, p);
+ u32_possible_linebreaks_loop (s, n, encoding, cr, p);
s_end = s + n;
last_p = NULL;
@@ -56,7 +57,8 @@ u32_width_linebreaks (const uint32_t *s, size_t n,
if (o != NULL && *o != UC_BREAK_UNDEFINED)
*p = *o;
- if (*p == UC_BREAK_POSSIBLE || *p == UC_BREAK_MANDATORY)
+ if (*p == UC_BREAK_POSSIBLE
+ || *p == UC_BREAK_MANDATORY || *p == UC_BREAK_CR_BEFORE_LF)
{
/* An atomic piece of text ends here. */
if (last_p != NULL && last_column + piece_width > width)
@@ -67,7 +69,7 @@ u32_width_linebreaks (const uint32_t *s, size_t n,
}
}
- if (*p == UC_BREAK_MANDATORY)
+ if (*p == UC_BREAK_MANDATORY || *p == UC_BREAK_CR_BEFORE_LF)
{
/* uc is a line break character. */
/* Start a new piece at column 0. */
@@ -113,3 +115,27 @@ u32_width_linebreaks (const uint32_t *s, size_t n,
return last_column + piece_width;
}
+
+#undef u32_width_linebreaks
+
+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)
+{
+ return u32_width_linebreaks_internal (s, n,
+ width, start_column, at_end_columns,
+ o, encoding, -1, p);
+}
+
+int
+u32_width_linebreaks_v2 (const uint32_t *s, size_t n,
+ int width, int start_column, int at_end_columns,
+ const char *o, const char *encoding,
+ char *p)
+{
+ return u32_width_linebreaks_internal (s, n,
+ width, start_column, at_end_columns,
+ o, encoding, LBP_CR, p);
+}