1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2011, 2012 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 #ifndef LIBPSPP_U8_LINE_H
18 #define LIBPSPP_U8_LINE_H 1
20 #include "libpspp/str.h"
24 /* A line of text, encoded in UTF-8, with support functions that properly
25 handle double-width characters and backspaces.
27 Designed to make appending text fast, and access and modification of other
28 column positions possible. */
31 struct string s; /* Content, in UTF-8. */
32 size_t width; /* Display width, in character positions. */
35 void u8_line_init (struct u8_line *);
36 void u8_line_destroy (struct u8_line *);
37 void u8_line_clear (struct u8_line *);
38 char *u8_line_reserve (struct u8_line *, int x0, int x1, int n);
39 void u8_line_put (struct u8_line *, int x0, int x1, const char *s, int n);
40 void u8_line_set_length (struct u8_line *, int x);
42 #endif /* libpspp/u8-line.h */