wcwidth.c revision f2e35a3a
1f2e35a3aSmrg/* $XTermId: wcwidth.c,v 1.57 2020/04/27 21:45:06 tom Exp $ */
2d522f475Smrg
3d522f475Smrg/* $XFree86: xc/programs/xterm/wcwidth.c,v 1.9 2006/06/19 00:36:52 dickey Exp $ */
4d522f475Smrg
5d522f475Smrg/*
6f2e35a3aSmrg * Copyright 2002-2019,2020 by Thomas E. Dickey
7913cc679Smrg *
8913cc679Smrg *                         All Rights Reserved
9913cc679Smrg *
10913cc679Smrg * Permission is hereby granted, free of charge, to any person obtaining a
11913cc679Smrg * copy of this software and associated documentation files (the
12913cc679Smrg * "Software"), to deal in the Software without restriction, including
13913cc679Smrg * without limitation the rights to use, copy, modify, merge, publish,
14913cc679Smrg * distribute, sublicense, and/or sell copies of the Software, and to
15913cc679Smrg * permit persons to whom the Software is furnished to do so, subject to
16913cc679Smrg * the following conditions:
17913cc679Smrg *
18913cc679Smrg * The above copyright notice and this permission notice shall be included
19913cc679Smrg * in all copies or substantial portions of the Software.
20913cc679Smrg *
21913cc679Smrg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22913cc679Smrg * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23913cc679Smrg * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
24913cc679Smrg * IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
25913cc679Smrg * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
26913cc679Smrg * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
27913cc679Smrg * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28913cc679Smrg *
29913cc679Smrg * Except as contained in this notice, the name(s) of the above copyright
30913cc679Smrg * holders shall not be used in advertising or otherwise to promote the
31913cc679Smrg * sale, use or other dealings in this Software without prior written
32913cc679Smrg * authorization.
33913cc679Smrg *-----------------------------------------------------------------------------
34913cc679Smrg * This is an updated version of Markus Kuhn's implementation of wcwidth.
35913cc679Smrg *
36913cc679Smrg * Originally added to xterm in 2000 (patch #141), there were a couple of
37913cc679Smrg * updates from Kuhn until 2005 (patch #202), renaming entrypoints and applying
38913cc679Smrg * data from Unicode.org (e.g., 3.2, 4.0, 4.1.0).  The Unicode data is
39913cc679Smrg * transformed into tables in this file by a script "uniset" written by Kuhn.
40913cc679Smrg *
41913cc679Smrg * While Kuhn implemented the original CJK variant, it was unused by xterm
42913cc679Smrg * until Jungshik Shin used it in 2002 to implement the -cjk_width command-line
43913cc679Smrg * option.
44913cc679Smrg *
45913cc679Smrg * Kuhn added a check for the vertical forms block (double-width) in 2007;
46913cc679Smrg * other updates were derived from the Unicode.org data (release 5.0).
47913cc679Smrg *
48913cc679Smrg * Since then, additional updates have been made:
49913cc679Smrg * + data-type fixes
50913cc679Smrg * + new Unicode releases (6.2.0, 9.0.0),
51913cc679Smrg * + additional special symbol blocks have been added to the special cases.
52913cc679Smrg * + soft-hyphen behavior has been made configurable.
53913cc679Smrg * + added table shows when a character is not part of Unicode.
54913cc679Smrg *
55913cc679Smrg * Kuhn's original header follows giving the design information:
56913cc679Smrg *-----------------------------------------------------------------------------
57d522f475Smrg * This is an implementation of wcwidth() and wcswidth() (defined in
58d522f475Smrg * IEEE Std 1002.1-2001) for Unicode.
59d522f475Smrg *
60d522f475Smrg * http://www.opengroup.org/onlinepubs/007904975/functions/wcwidth.html
61d522f475Smrg * http://www.opengroup.org/onlinepubs/007904975/functions/wcswidth.html
62d522f475Smrg *
63d522f475Smrg * In fixed-width output devices, Latin characters all occupy a single
64d522f475Smrg * "cell" position of equal width, whereas ideographic CJK characters
65d522f475Smrg * occupy two such cells. Interoperability between terminal-line
66d522f475Smrg * applications and (teletype-style) character terminals using the
67d522f475Smrg * UTF-8 encoding requires agreement on which character should advance
68d522f475Smrg * the cursor by how many cell positions. No established formal
69d522f475Smrg * standards exist at present on which Unicode character shall occupy
70d522f475Smrg * how many cell positions on character terminals. These routines are
71d522f475Smrg * a first attempt of defining such behavior based on simple rules
72d522f475Smrg * applied to data provided by the Unicode Consortium.
73d522f475Smrg *
74d522f475Smrg * For some graphical characters, the Unicode standard explicitly
75d522f475Smrg * defines a character-cell width via the definition of the East Asian
76d522f475Smrg * FullWidth (F), Wide (W), Half-width (H), and Narrow (Na) classes.
77d522f475Smrg * In all these cases, there is no ambiguity about which width a
78d522f475Smrg * terminal shall use. For characters in the East Asian Ambiguous (A)
79d522f475Smrg * class, the width choice depends purely on a preference of backward
80d522f475Smrg * compatibility with either historic CJK or Western practice.
81d522f475Smrg * Choosing single-width for these characters is easy to justify as
82d522f475Smrg * the appropriate long-term solution, as the CJK practice of
83d522f475Smrg * displaying these characters as double-width comes from historic
84d522f475Smrg * implementation simplicity (8-bit encoded characters were displayed
85d522f475Smrg * single-width and 16-bit ones double-width, even for Greek,
86d522f475Smrg * Cyrillic, etc.) and not any typographic considerations.
87d522f475Smrg *
88d522f475Smrg * Much less clear is the choice of width for the Not East Asian
89d522f475Smrg * (Neutral) class. Existing practice does not dictate a width for any
90d522f475Smrg * of these characters. It would nevertheless make sense
91d522f475Smrg * typographically to allocate two character cells to characters such
92d522f475Smrg * as for instance EM SPACE or VOLUME INTEGRAL, which cannot be
93d522f475Smrg * represented adequately with a single-width glyph. The following
94d522f475Smrg * routines at present merely assign a single-cell width to all
95d522f475Smrg * neutral characters, in the interest of simplicity. This is not
96d522f475Smrg * entirely satisfactory and should be reconsidered before
97d522f475Smrg * establishing a formal standard in this area. At the moment, the
98d522f475Smrg * decision which Not East Asian (Neutral) characters should be
99d522f475Smrg * represented by double-width glyphs cannot yet be answered by
100d522f475Smrg * applying a simple rule from the Unicode database content. Setting
101d522f475Smrg * up a proper standard for the behavior of UTF-8 character terminals
102d522f475Smrg * will require a careful analysis not only of each Unicode character,
103d522f475Smrg * but also of each presentation form, something the author of these
104d522f475Smrg * routines has avoided to do so far.
105d522f475Smrg *
106d522f475Smrg * http://www.unicode.org/unicode/reports/tr11/
107d522f475Smrg *
108d522f475Smrg * Markus Kuhn -- 2007-05-25 (Unicode 5.0)
109d522f475Smrg *
110d522f475Smrg * Permission to use, copy, modify, and distribute this software
111d522f475Smrg * for any purpose and without fee is hereby granted. The author
112d522f475Smrg * disclaims all warranties with regard to this software.
113d522f475Smrg *
114d522f475Smrg * Latest version: http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
115d522f475Smrg */
116d522f475Smrg
117f2e35a3aSmrg#ifdef TEST_DRIVER
118f2e35a3aSmrg#include <stdio.h>
119f2e35a3aSmrg#include <stdlib.h>             /* EXIT_SUCCESS, etc. */
120f2e35a3aSmrg#include <unistd.h>             /* getopt() */
121f2e35a3aSmrg#include <string.h>             /* strncmp() */
122f2e35a3aSmrg#include <locale.h>             /* setlocale() */
123f2e35a3aSmrg#include <wchar.h>              /* wcwidth() */
124f2e35a3aSmrg#include <wctype.h>             /* this module */
125f2e35a3aSmrg#endif
126f2e35a3aSmrg
127d522f475Smrg#include <wcwidth.h>
128d522f475Smrg
129d522f475Smrgstruct interval {
130d522f475Smrg  unsigned long first;
131d522f475Smrg  unsigned long last;
132d522f475Smrg};
133d522f475Smrg
134913cc679Smrgstatic int use_latin1 = 1;
135913cc679Smrg
136d522f475Smrg/* auxiliary function for binary search in interval table */
137f2e35a3aSmrgstatic int bisearch(unsigned long ucs, const struct interval *table, int max)
138f2e35a3aSmrg{
139d522f475Smrg
140d522f475Smrg  if (ucs >= table[0].first && ucs <= table[max].last) {
1412e4f8982Smrg    int min = 0;
1422e4f8982Smrg
143d522f475Smrg    while (max >= min) {
1442e4f8982Smrg      int mid;
1452e4f8982Smrg
146d522f475Smrg      mid = (min + max) / 2;
147d522f475Smrg      if (ucs > table[mid].last)
148d522f475Smrg        min = mid + 1;
149d522f475Smrg      else if (ucs < table[mid].first)
150d522f475Smrg        max = mid - 1;
151d522f475Smrg      else
152d522f475Smrg        return 1;
153d522f475Smrg    }
154d522f475Smrg  }
155d522f475Smrg
156d522f475Smrg  return 0;
157d522f475Smrg}
158d522f475Smrg
159913cc679Smrg/*
160913cc679Smrg * Provide a way to change the behavior of soft-hyphen.
161913cc679Smrg */
162f2e35a3aSmrgvoid mk_wcwidth_init(int mode)
163913cc679Smrg{
164913cc679Smrg  use_latin1 = (mode == 0);
165913cc679Smrg}
166d522f475Smrg
167d522f475Smrg/* The following two functions define the column width of an ISO 10646
168d522f475Smrg * character as follows:
169d522f475Smrg *
170d522f475Smrg *    - The null character (U+0000) has a column width of 0.
171d522f475Smrg *
172d522f475Smrg *    - Other C0/C1 control characters and DEL will lead to a return
173d522f475Smrg *      value of -1.
174d522f475Smrg *
175d522f475Smrg *    - Non-spacing and enclosing combining characters (general
176d522f475Smrg *      category code Mn or Me in the Unicode database) have a
177d522f475Smrg *      column width of 0.
178d522f475Smrg *
179f2e35a3aSmrg *    - A few spacing combining marks have a column width of 0.
180f2e35a3aSmrg *
181913cc679Smrg *    - SOFT HYPHEN (U+00AD) has a column width of 1 in Latin-1, 0 in Unicode.
182913cc679Smrg *      An initialization function is used to switch between the two.
183d522f475Smrg *
184d522f475Smrg *    - Other format characters (general category code Cf in the Unicode
185d522f475Smrg *      database) and ZERO WIDTH SPACE (U+200B) have a column width of 0.
186d522f475Smrg *
187d522f475Smrg *    - Hangul Jamo medial vowels and final consonants (U+1160-U+11FF)
188d522f475Smrg *      have a column width of 0.
189d522f475Smrg *
190d522f475Smrg *    - Spacing characters in the East Asian Wide (W) or East Asian
191d522f475Smrg *      Full-width (F) category as defined in Unicode Technical
192913cc679Smrg *      Report #11 have a column width of 2.  In that report, some codes
193913cc679Smrg *      were unassigned.  Characters in these blocks use a column width of 1:
194913cc679Smrg *          4DC0..4DFF; Yijing Hexagram Symbols
195913cc679Smrg *          A960..A97F; Hangul Jamo Extended-A
196d522f475Smrg *
197d522f475Smrg *    - All remaining characters (including all printable
198d522f475Smrg *      ISO 8859-1 and WGL4 characters, Unicode control characters,
199d522f475Smrg *      etc.) have a column width of 1.
200d522f475Smrg *
201913cc679Smrg *    - Codes which do not correspond to a Unicode character have a column
202913cc679Smrg *      width of -1.
203913cc679Smrg *
204d522f475Smrg * This implementation assumes that wchar_t characters are encoded
205d522f475Smrg * in ISO 10646.
206d522f475Smrg */
207d522f475Smrg
208d522f475Smrgint mk_wcwidth(wchar_t ucs)
209d522f475Smrg{
210d522f475Smrg  unsigned long cmp = (unsigned long) ucs;
211d522f475Smrg
212d522f475Smrg  /* sorted list of non-overlapping intervals of non-spacing characters */
213d522f475Smrg  /* generated by
214913cc679Smrg   *    uniset +cat=Me +cat=Mn +cat=Cf -00AD +1160-11FF +200B c
215d522f475Smrg   */
216f2e35a3aSmrg  /* *INDENT-OFF* */
217f2e35a3aSmrg  /* generated by run-uniset 1.6 */
218d522f475Smrg  static const struct interval combining[] = {
2190bd37d32Smrg    { 0x0300, 0x036F }, { 0x0483, 0x0489 }, { 0x0591, 0x05BD },
2200bd37d32Smrg    { 0x05BF, 0x05BF }, { 0x05C1, 0x05C2 }, { 0x05C4, 0x05C5 },
221913cc679Smrg    { 0x05C7, 0x05C7 }, { 0x0600, 0x0605 }, { 0x0610, 0x061A },
222913cc679Smrg    { 0x061C, 0x061C }, { 0x064B, 0x065F }, { 0x0670, 0x0670 },
223913cc679Smrg    { 0x06D6, 0x06DD }, { 0x06DF, 0x06E4 }, { 0x06E7, 0x06E8 },
224913cc679Smrg    { 0x06EA, 0x06ED }, { 0x070F, 0x070F }, { 0x0711, 0x0711 },
225913cc679Smrg    { 0x0730, 0x074A }, { 0x07A6, 0x07B0 }, { 0x07EB, 0x07F3 },
226f2e35a3aSmrg    { 0x07FD, 0x07FD }, { 0x0816, 0x0819 }, { 0x081B, 0x0823 },
227f2e35a3aSmrg    { 0x0825, 0x0827 }, { 0x0829, 0x082D }, { 0x0859, 0x085B },
228f2e35a3aSmrg    { 0x08D3, 0x0902 }, { 0x093A, 0x093A }, { 0x093C, 0x093C },
229f2e35a3aSmrg    { 0x0941, 0x0948 }, { 0x094D, 0x094D }, { 0x0951, 0x0957 },
230f2e35a3aSmrg    { 0x0962, 0x0963 }, { 0x0981, 0x0981 }, { 0x09BC, 0x09BC },
231f2e35a3aSmrg    { 0x09C1, 0x09C4 }, { 0x09CD, 0x09CD }, { 0x09E2, 0x09E3 },
232f2e35a3aSmrg    { 0x09FE, 0x09FE }, { 0x0A01, 0x0A02 }, { 0x0A3C, 0x0A3C },
233f2e35a3aSmrg    { 0x0A41, 0x0A42 }, { 0x0A47, 0x0A48 }, { 0x0A4B, 0x0A4D },
234f2e35a3aSmrg    { 0x0A51, 0x0A51 }, { 0x0A70, 0x0A71 }, { 0x0A75, 0x0A75 },
235f2e35a3aSmrg    { 0x0A81, 0x0A82 }, { 0x0ABC, 0x0ABC }, { 0x0AC1, 0x0AC5 },
236f2e35a3aSmrg    { 0x0AC7, 0x0AC8 }, { 0x0ACD, 0x0ACD }, { 0x0AE2, 0x0AE3 },
237f2e35a3aSmrg    { 0x0AFA, 0x0AFF }, { 0x0B01, 0x0B01 }, { 0x0B3C, 0x0B3C },
238f2e35a3aSmrg    { 0x0B3F, 0x0B3F }, { 0x0B41, 0x0B44 }, { 0x0B4D, 0x0B4D },
239f2e35a3aSmrg    { 0x0B55, 0x0B56 }, { 0x0B62, 0x0B63 }, { 0x0B82, 0x0B82 },
240f2e35a3aSmrg    { 0x0BC0, 0x0BC0 }, { 0x0BCD, 0x0BCD }, { 0x0C00, 0x0C00 },
241f2e35a3aSmrg    { 0x0C04, 0x0C04 }, { 0x0C3E, 0x0C40 }, { 0x0C46, 0x0C48 },
242913cc679Smrg    { 0x0C4A, 0x0C4D }, { 0x0C55, 0x0C56 }, { 0x0C62, 0x0C63 },
243913cc679Smrg    { 0x0C81, 0x0C81 }, { 0x0CBC, 0x0CBC }, { 0x0CBF, 0x0CBF },
2440bd37d32Smrg    { 0x0CC6, 0x0CC6 }, { 0x0CCC, 0x0CCD }, { 0x0CE2, 0x0CE3 },
245913cc679Smrg    { 0x0D00, 0x0D01 }, { 0x0D3B, 0x0D3C }, { 0x0D41, 0x0D44 },
246f2e35a3aSmrg    { 0x0D4D, 0x0D4D }, { 0x0D62, 0x0D63 }, { 0x0D81, 0x0D81 },
247f2e35a3aSmrg    { 0x0DCA, 0x0DCA }, { 0x0DD2, 0x0DD4 }, { 0x0DD6, 0x0DD6 },
248f2e35a3aSmrg    { 0x0E31, 0x0E31 }, { 0x0E34, 0x0E3A }, { 0x0E47, 0x0E4E },
249f2e35a3aSmrg    { 0x0EB1, 0x0EB1 }, { 0x0EB4, 0x0EBC }, { 0x0EC8, 0x0ECD },
250913cc679Smrg    { 0x0F18, 0x0F19 }, { 0x0F35, 0x0F35 }, { 0x0F37, 0x0F37 },
251913cc679Smrg    { 0x0F39, 0x0F39 }, { 0x0F71, 0x0F7E }, { 0x0F80, 0x0F84 },
252913cc679Smrg    { 0x0F86, 0x0F87 }, { 0x0F8D, 0x0F97 }, { 0x0F99, 0x0FBC },
253913cc679Smrg    { 0x0FC6, 0x0FC6 }, { 0x102D, 0x1030 }, { 0x1032, 0x1037 },
254913cc679Smrg    { 0x1039, 0x103A }, { 0x103D, 0x103E }, { 0x1058, 0x1059 },
255913cc679Smrg    { 0x105E, 0x1060 }, { 0x1071, 0x1074 }, { 0x1082, 0x1082 },
256913cc679Smrg    { 0x1085, 0x1086 }, { 0x108D, 0x108D }, { 0x109D, 0x109D },
257913cc679Smrg    { 0x1160, 0x11FF }, { 0x135D, 0x135F }, { 0x1712, 0x1714 },
258913cc679Smrg    { 0x1732, 0x1734 }, { 0x1752, 0x1753 }, { 0x1772, 0x1773 },
259913cc679Smrg    { 0x17B4, 0x17B5 }, { 0x17B7, 0x17BD }, { 0x17C6, 0x17C6 },
260913cc679Smrg    { 0x17C9, 0x17D3 }, { 0x17DD, 0x17DD }, { 0x180B, 0x180E },
261913cc679Smrg    { 0x1885, 0x1886 }, { 0x18A9, 0x18A9 }, { 0x1920, 0x1922 },
262d522f475Smrg    { 0x1927, 0x1928 }, { 0x1932, 0x1932 }, { 0x1939, 0x193B },
263913cc679Smrg    { 0x1A17, 0x1A18 }, { 0x1A1B, 0x1A1B }, { 0x1A56, 0x1A56 },
264913cc679Smrg    { 0x1A58, 0x1A5E }, { 0x1A60, 0x1A60 }, { 0x1A62, 0x1A62 },
265913cc679Smrg    { 0x1A65, 0x1A6C }, { 0x1A73, 0x1A7C }, { 0x1A7F, 0x1A7F },
266f2e35a3aSmrg    { 0x1AB0, 0x1AC0 }, { 0x1B00, 0x1B03 }, { 0x1B34, 0x1B34 },
267913cc679Smrg    { 0x1B36, 0x1B3A }, { 0x1B3C, 0x1B3C }, { 0x1B42, 0x1B42 },
268913cc679Smrg    { 0x1B6B, 0x1B73 }, { 0x1B80, 0x1B81 }, { 0x1BA2, 0x1BA5 },
269913cc679Smrg    { 0x1BA8, 0x1BA9 }, { 0x1BAB, 0x1BAD }, { 0x1BE6, 0x1BE6 },
270913cc679Smrg    { 0x1BE8, 0x1BE9 }, { 0x1BED, 0x1BED }, { 0x1BEF, 0x1BF1 },
271913cc679Smrg    { 0x1C2C, 0x1C33 }, { 0x1C36, 0x1C37 }, { 0x1CD0, 0x1CD2 },
272913cc679Smrg    { 0x1CD4, 0x1CE0 }, { 0x1CE2, 0x1CE8 }, { 0x1CED, 0x1CED },
273913cc679Smrg    { 0x1CF4, 0x1CF4 }, { 0x1CF8, 0x1CF9 }, { 0x1DC0, 0x1DF9 },
274913cc679Smrg    { 0x1DFB, 0x1DFF }, { 0x200B, 0x200F }, { 0x202A, 0x202E },
275913cc679Smrg    { 0x2060, 0x2064 }, { 0x2066, 0x206F }, { 0x20D0, 0x20F0 },
2760bd37d32Smrg    { 0x2CEF, 0x2CF1 }, { 0x2D7F, 0x2D7F }, { 0x2DE0, 0x2DFF },
2770bd37d32Smrg    { 0x302A, 0x302D }, { 0x3099, 0x309A }, { 0xA66F, 0xA672 },
278913cc679Smrg    { 0xA674, 0xA67D }, { 0xA69E, 0xA69F }, { 0xA6F0, 0xA6F1 },
2790bd37d32Smrg    { 0xA802, 0xA802 }, { 0xA806, 0xA806 }, { 0xA80B, 0xA80B },
280f2e35a3aSmrg    { 0xA825, 0xA826 }, { 0xA82C, 0xA82C }, { 0xA8C4, 0xA8C5 },
281f2e35a3aSmrg    { 0xA8E0, 0xA8F1 }, { 0xA8FF, 0xA8FF }, { 0xA926, 0xA92D },
282f2e35a3aSmrg    { 0xA947, 0xA951 }, { 0xA980, 0xA982 }, { 0xA9B3, 0xA9B3 },
283f2e35a3aSmrg    { 0xA9B6, 0xA9B9 }, { 0xA9BC, 0xA9BD }, { 0xA9E5, 0xA9E5 },
284f2e35a3aSmrg    { 0xAA29, 0xAA2E }, { 0xAA31, 0xAA32 }, { 0xAA35, 0xAA36 },
285f2e35a3aSmrg    { 0xAA43, 0xAA43 }, { 0xAA4C, 0xAA4C }, { 0xAA7C, 0xAA7C },
286f2e35a3aSmrg    { 0xAAB0, 0xAAB0 }, { 0xAAB2, 0xAAB4 }, { 0xAAB7, 0xAAB8 },
287f2e35a3aSmrg    { 0xAABE, 0xAABF }, { 0xAAC1, 0xAAC1 }, { 0xAAEC, 0xAAED },
288f2e35a3aSmrg    { 0xAAF6, 0xAAF6 }, { 0xABE5, 0xABE5 }, { 0xABE8, 0xABE8 },
289f2e35a3aSmrg    { 0xABED, 0xABED }, { 0xFB1E, 0xFB1E }, { 0xFE00, 0xFE0F },
290f2e35a3aSmrg    { 0xFE20, 0xFE2F }, { 0xFEFF, 0xFEFF }, { 0xFFF9, 0xFFFB },
291f2e35a3aSmrg    { 0x101FD, 0x101FD }, { 0x102E0, 0x102E0 }, { 0x10376, 0x1037A },
292f2e35a3aSmrg    { 0x10A01, 0x10A03 }, { 0x10A05, 0x10A06 }, { 0x10A0C, 0x10A0F },
293f2e35a3aSmrg    { 0x10A38, 0x10A3A }, { 0x10A3F, 0x10A3F }, { 0x10AE5, 0x10AE6 },
294f2e35a3aSmrg    { 0x10D24, 0x10D27 }, { 0x10EAB, 0x10EAC }, { 0x10F46, 0x10F50 },
295f2e35a3aSmrg    { 0x11001, 0x11001 }, { 0x11038, 0x11046 }, { 0x1107F, 0x11081 },
296f2e35a3aSmrg    { 0x110B3, 0x110B6 }, { 0x110B9, 0x110BA }, { 0x110BD, 0x110BD },
297f2e35a3aSmrg    { 0x110CD, 0x110CD }, { 0x11100, 0x11102 }, { 0x11127, 0x1112B },
298913cc679Smrg    { 0x1112D, 0x11134 }, { 0x11173, 0x11173 }, { 0x11180, 0x11181 },
299f2e35a3aSmrg    { 0x111B6, 0x111BE }, { 0x111C9, 0x111CC }, { 0x111CF, 0x111CF },
300f2e35a3aSmrg    { 0x1122F, 0x11231 }, { 0x11234, 0x11234 }, { 0x11236, 0x11237 },
301f2e35a3aSmrg    { 0x1123E, 0x1123E }, { 0x112DF, 0x112DF }, { 0x112E3, 0x112EA },
302f2e35a3aSmrg    { 0x11300, 0x11301 }, { 0x1133B, 0x1133C }, { 0x11340, 0x11340 },
303f2e35a3aSmrg    { 0x11366, 0x1136C }, { 0x11370, 0x11374 }, { 0x11438, 0x1143F },
304f2e35a3aSmrg    { 0x11442, 0x11444 }, { 0x11446, 0x11446 }, { 0x1145E, 0x1145E },
305f2e35a3aSmrg    { 0x114B3, 0x114B8 }, { 0x114BA, 0x114BA }, { 0x114BF, 0x114C0 },
306f2e35a3aSmrg    { 0x114C2, 0x114C3 }, { 0x115B2, 0x115B5 }, { 0x115BC, 0x115BD },
307f2e35a3aSmrg    { 0x115BF, 0x115C0 }, { 0x115DC, 0x115DD }, { 0x11633, 0x1163A },
308f2e35a3aSmrg    { 0x1163D, 0x1163D }, { 0x1163F, 0x11640 }, { 0x116AB, 0x116AB },
309f2e35a3aSmrg    { 0x116AD, 0x116AD }, { 0x116B0, 0x116B5 }, { 0x116B7, 0x116B7 },
310f2e35a3aSmrg    { 0x1171D, 0x1171F }, { 0x11722, 0x11725 }, { 0x11727, 0x1172B },
311f2e35a3aSmrg    { 0x1182F, 0x11837 }, { 0x11839, 0x1183A }, { 0x1193B, 0x1193C },
312f2e35a3aSmrg    { 0x1193E, 0x1193E }, { 0x11943, 0x11943 }, { 0x119D4, 0x119D7 },
313f2e35a3aSmrg    { 0x119DA, 0x119DB }, { 0x119E0, 0x119E0 }, { 0x11A01, 0x11A0A },
314913cc679Smrg    { 0x11A33, 0x11A38 }, { 0x11A3B, 0x11A3E }, { 0x11A47, 0x11A47 },
315913cc679Smrg    { 0x11A51, 0x11A56 }, { 0x11A59, 0x11A5B }, { 0x11A8A, 0x11A96 },
316913cc679Smrg    { 0x11A98, 0x11A99 }, { 0x11C30, 0x11C36 }, { 0x11C38, 0x11C3D },
317913cc679Smrg    { 0x11C3F, 0x11C3F }, { 0x11C92, 0x11CA7 }, { 0x11CAA, 0x11CB0 },
318913cc679Smrg    { 0x11CB2, 0x11CB3 }, { 0x11CB5, 0x11CB6 }, { 0x11D31, 0x11D36 },
319913cc679Smrg    { 0x11D3A, 0x11D3A }, { 0x11D3C, 0x11D3D }, { 0x11D3F, 0x11D45 },
320f2e35a3aSmrg    { 0x11D47, 0x11D47 }, { 0x11D90, 0x11D91 }, { 0x11D95, 0x11D95 },
321f2e35a3aSmrg    { 0x11D97, 0x11D97 }, { 0x11EF3, 0x11EF4 }, { 0x13430, 0x13438 },
322f2e35a3aSmrg    { 0x16AF0, 0x16AF4 }, { 0x16B30, 0x16B36 }, { 0x16F4F, 0x16F4F },
323f2e35a3aSmrg    { 0x16F8F, 0x16F92 }, { 0x16FE4, 0x16FE4 }, { 0x1BC9D, 0x1BC9E },
324f2e35a3aSmrg    { 0x1BCA0, 0x1BCA3 }, { 0x1D167, 0x1D169 }, { 0x1D173, 0x1D182 },
325f2e35a3aSmrg    { 0x1D185, 0x1D18B }, { 0x1D1AA, 0x1D1AD }, { 0x1D242, 0x1D244 },
326f2e35a3aSmrg    { 0x1DA00, 0x1DA36 }, { 0x1DA3B, 0x1DA6C }, { 0x1DA75, 0x1DA75 },
327f2e35a3aSmrg    { 0x1DA84, 0x1DA84 }, { 0x1DA9B, 0x1DA9F }, { 0x1DAA1, 0x1DAAF },
328f2e35a3aSmrg    { 0x1E000, 0x1E006 }, { 0x1E008, 0x1E018 }, { 0x1E01B, 0x1E021 },
329f2e35a3aSmrg    { 0x1E023, 0x1E024 }, { 0x1E026, 0x1E02A }, { 0x1E130, 0x1E136 },
330f2e35a3aSmrg    { 0x1E2EC, 0x1E2EF }, { 0x1E8D0, 0x1E8D6 }, { 0x1E944, 0x1E94A },
331913cc679Smrg    { 0xE0001, 0xE0001 }, { 0xE0020, 0xE007F }, { 0xE0100, 0xE01EF }
332913cc679Smrg  };
333f2e35a3aSmrg  /* *INDENT-ON* */
334913cc679Smrg
335913cc679Smrg  /* sorted list of non-overlapping intervals of non-characters */
336913cc679Smrg  /* generated by
337913cc679Smrg   *    uniset +0000..DFFF -4e00..9fd5 +F900..10FFFD unknown +2028..2029 c
338913cc679Smrg   */
339f2e35a3aSmrg  /* *INDENT-OFF* */
340f2e35a3aSmrg  /* generated by run-uniset_unk 1.6 */
341913cc679Smrg  static const struct interval unknowns[] = {
342913cc679Smrg    { 0x0378, 0x0379 }, { 0x0380, 0x0383 }, { 0x038B, 0x038B },
343913cc679Smrg    { 0x038D, 0x038D }, { 0x03A2, 0x03A2 }, { 0x0530, 0x0530 },
344f2e35a3aSmrg    { 0x0557, 0x0558 }, { 0x058B, 0x058C }, { 0x0590, 0x0590 },
345f2e35a3aSmrg    { 0x05C8, 0x05CF }, { 0x05EB, 0x05EE }, { 0x05F5, 0x05FF },
346f2e35a3aSmrg    { 0x061D, 0x061D }, { 0x070E, 0x070E }, { 0x074B, 0x074C },
347f2e35a3aSmrg    { 0x07B2, 0x07BF }, { 0x07FB, 0x07FC }, { 0x082E, 0x082F },
348f2e35a3aSmrg    { 0x083F, 0x083F }, { 0x085C, 0x085D }, { 0x085F, 0x085F },
349f2e35a3aSmrg    { 0x086B, 0x089F }, { 0x08B5, 0x08B5 }, { 0x08C8, 0x08D2 },
350f2e35a3aSmrg    { 0x0984, 0x0984 }, { 0x098D, 0x098E }, { 0x0991, 0x0992 },
351f2e35a3aSmrg    { 0x09A9, 0x09A9 }, { 0x09B1, 0x09B1 }, { 0x09B3, 0x09B5 },
352f2e35a3aSmrg    { 0x09BA, 0x09BB }, { 0x09C5, 0x09C6 }, { 0x09C9, 0x09CA },
353f2e35a3aSmrg    { 0x09CF, 0x09D6 }, { 0x09D8, 0x09DB }, { 0x09DE, 0x09DE },
354f2e35a3aSmrg    { 0x09E4, 0x09E5 }, { 0x09FF, 0x0A00 }, { 0x0A04, 0x0A04 },
355f2e35a3aSmrg    { 0x0A0B, 0x0A0E }, { 0x0A11, 0x0A12 }, { 0x0A29, 0x0A29 },
356f2e35a3aSmrg    { 0x0A31, 0x0A31 }, { 0x0A34, 0x0A34 }, { 0x0A37, 0x0A37 },
357f2e35a3aSmrg    { 0x0A3A, 0x0A3B }, { 0x0A3D, 0x0A3D }, { 0x0A43, 0x0A46 },
358f2e35a3aSmrg    { 0x0A49, 0x0A4A }, { 0x0A4E, 0x0A50 }, { 0x0A52, 0x0A58 },
359f2e35a3aSmrg    { 0x0A5D, 0x0A5D }, { 0x0A5F, 0x0A65 }, { 0x0A77, 0x0A80 },
360f2e35a3aSmrg    { 0x0A84, 0x0A84 }, { 0x0A8E, 0x0A8E }, { 0x0A92, 0x0A92 },
361f2e35a3aSmrg    { 0x0AA9, 0x0AA9 }, { 0x0AB1, 0x0AB1 }, { 0x0AB4, 0x0AB4 },
362f2e35a3aSmrg    { 0x0ABA, 0x0ABB }, { 0x0AC6, 0x0AC6 }, { 0x0ACA, 0x0ACA },
363f2e35a3aSmrg    { 0x0ACE, 0x0ACF }, { 0x0AD1, 0x0ADF }, { 0x0AE4, 0x0AE5 },
364f2e35a3aSmrg    { 0x0AF2, 0x0AF8 }, { 0x0B00, 0x0B00 }, { 0x0B04, 0x0B04 },
365f2e35a3aSmrg    { 0x0B0D, 0x0B0E }, { 0x0B11, 0x0B12 }, { 0x0B29, 0x0B29 },
366f2e35a3aSmrg    { 0x0B31, 0x0B31 }, { 0x0B34, 0x0B34 }, { 0x0B3A, 0x0B3B },
367f2e35a3aSmrg    { 0x0B45, 0x0B46 }, { 0x0B49, 0x0B4A }, { 0x0B4E, 0x0B54 },
368f2e35a3aSmrg    { 0x0B58, 0x0B5B }, { 0x0B5E, 0x0B5E }, { 0x0B64, 0x0B65 },
369f2e35a3aSmrg    { 0x0B78, 0x0B81 }, { 0x0B84, 0x0B84 }, { 0x0B8B, 0x0B8D },
370f2e35a3aSmrg    { 0x0B91, 0x0B91 }, { 0x0B96, 0x0B98 }, { 0x0B9B, 0x0B9B },
371f2e35a3aSmrg    { 0x0B9D, 0x0B9D }, { 0x0BA0, 0x0BA2 }, { 0x0BA5, 0x0BA7 },
372f2e35a3aSmrg    { 0x0BAB, 0x0BAD }, { 0x0BBA, 0x0BBD }, { 0x0BC3, 0x0BC5 },
373f2e35a3aSmrg    { 0x0BC9, 0x0BC9 }, { 0x0BCE, 0x0BCF }, { 0x0BD1, 0x0BD6 },
374f2e35a3aSmrg    { 0x0BD8, 0x0BE5 }, { 0x0BFB, 0x0BFF }, { 0x0C0D, 0x0C0D },
375913cc679Smrg    { 0x0C11, 0x0C11 }, { 0x0C29, 0x0C29 }, { 0x0C3A, 0x0C3C },
376913cc679Smrg    { 0x0C45, 0x0C45 }, { 0x0C49, 0x0C49 }, { 0x0C4E, 0x0C54 },
377913cc679Smrg    { 0x0C57, 0x0C57 }, { 0x0C5B, 0x0C5F }, { 0x0C64, 0x0C65 },
378f2e35a3aSmrg    { 0x0C70, 0x0C76 }, { 0x0C8D, 0x0C8D }, { 0x0C91, 0x0C91 },
379f2e35a3aSmrg    { 0x0CA9, 0x0CA9 }, { 0x0CB4, 0x0CB4 }, { 0x0CBA, 0x0CBB },
380f2e35a3aSmrg    { 0x0CC5, 0x0CC5 }, { 0x0CC9, 0x0CC9 }, { 0x0CCE, 0x0CD4 },
381f2e35a3aSmrg    { 0x0CD7, 0x0CDD }, { 0x0CDF, 0x0CDF }, { 0x0CE4, 0x0CE5 },
382f2e35a3aSmrg    { 0x0CF0, 0x0CF0 }, { 0x0CF3, 0x0CFF }, { 0x0D0D, 0x0D0D },
383f2e35a3aSmrg    { 0x0D11, 0x0D11 }, { 0x0D45, 0x0D45 }, { 0x0D49, 0x0D49 },
384f2e35a3aSmrg    { 0x0D50, 0x0D53 }, { 0x0D64, 0x0D65 }, { 0x0D80, 0x0D80 },
385f2e35a3aSmrg    { 0x0D84, 0x0D84 }, { 0x0D97, 0x0D99 }, { 0x0DB2, 0x0DB2 },
386f2e35a3aSmrg    { 0x0DBC, 0x0DBC }, { 0x0DBE, 0x0DBF }, { 0x0DC7, 0x0DC9 },
387f2e35a3aSmrg    { 0x0DCB, 0x0DCE }, { 0x0DD5, 0x0DD5 }, { 0x0DD7, 0x0DD7 },
388f2e35a3aSmrg    { 0x0DE0, 0x0DE5 }, { 0x0DF0, 0x0DF1 }, { 0x0DF5, 0x0E00 },
389f2e35a3aSmrg    { 0x0E3B, 0x0E3E }, { 0x0E5C, 0x0E80 }, { 0x0E83, 0x0E83 },
390f2e35a3aSmrg    { 0x0E85, 0x0E85 }, { 0x0E8B, 0x0E8B }, { 0x0EA4, 0x0EA4 },
391f2e35a3aSmrg    { 0x0EA6, 0x0EA6 }, { 0x0EBE, 0x0EBF }, { 0x0EC5, 0x0EC5 },
392913cc679Smrg    { 0x0EC7, 0x0EC7 }, { 0x0ECE, 0x0ECF }, { 0x0EDA, 0x0EDB },
393913cc679Smrg    { 0x0EE0, 0x0EFF }, { 0x0F48, 0x0F48 }, { 0x0F6D, 0x0F70 },
394913cc679Smrg    { 0x0F98, 0x0F98 }, { 0x0FBD, 0x0FBD }, { 0x0FCD, 0x0FCD },
395913cc679Smrg    { 0x0FDB, 0x0FFF }, { 0x10C6, 0x10C6 }, { 0x10C8, 0x10CC },
396913cc679Smrg    { 0x10CE, 0x10CF }, { 0x1249, 0x1249 }, { 0x124E, 0x124F },
397913cc679Smrg    { 0x1257, 0x1257 }, { 0x1259, 0x1259 }, { 0x125E, 0x125F },
398913cc679Smrg    { 0x1289, 0x1289 }, { 0x128E, 0x128F }, { 0x12B1, 0x12B1 },
399913cc679Smrg    { 0x12B6, 0x12B7 }, { 0x12BF, 0x12BF }, { 0x12C1, 0x12C1 },
400913cc679Smrg    { 0x12C6, 0x12C7 }, { 0x12D7, 0x12D7 }, { 0x1311, 0x1311 },
401913cc679Smrg    { 0x1316, 0x1317 }, { 0x135B, 0x135C }, { 0x137D, 0x137F },
402913cc679Smrg    { 0x139A, 0x139F }, { 0x13F6, 0x13F7 }, { 0x13FE, 0x13FF },
403913cc679Smrg    { 0x169D, 0x169F }, { 0x16F9, 0x16FF }, { 0x170D, 0x170D },
404913cc679Smrg    { 0x1715, 0x171F }, { 0x1737, 0x173F }, { 0x1754, 0x175F },
405913cc679Smrg    { 0x176D, 0x176D }, { 0x1771, 0x1771 }, { 0x1774, 0x177F },
406913cc679Smrg    { 0x17DE, 0x17DF }, { 0x17EA, 0x17EF }, { 0x17FA, 0x17FF },
407f2e35a3aSmrg    { 0x180F, 0x180F }, { 0x181A, 0x181F }, { 0x1879, 0x187F },
408913cc679Smrg    { 0x18AB, 0x18AF }, { 0x18F6, 0x18FF }, { 0x191F, 0x191F },
409913cc679Smrg    { 0x192C, 0x192F }, { 0x193C, 0x193F }, { 0x1941, 0x1943 },
410913cc679Smrg    { 0x196E, 0x196F }, { 0x1975, 0x197F }, { 0x19AC, 0x19AF },
411913cc679Smrg    { 0x19CA, 0x19CF }, { 0x19DB, 0x19DD }, { 0x1A1C, 0x1A1D },
412913cc679Smrg    { 0x1A5F, 0x1A5F }, { 0x1A7D, 0x1A7E }, { 0x1A8A, 0x1A8F },
413f2e35a3aSmrg    { 0x1A9A, 0x1A9F }, { 0x1AAE, 0x1AAF }, { 0x1AC1, 0x1AFF },
414913cc679Smrg    { 0x1B4C, 0x1B4F }, { 0x1B7D, 0x1B7F }, { 0x1BF4, 0x1BFB },
415f2e35a3aSmrg    { 0x1C38, 0x1C3A }, { 0x1C4A, 0x1C4C }, { 0x1C89, 0x1C8F },
416f2e35a3aSmrg    { 0x1CBB, 0x1CBC }, { 0x1CC8, 0x1CCF }, { 0x1CFB, 0x1CFF },
417f2e35a3aSmrg    { 0x1DFA, 0x1DFA }, { 0x1F16, 0x1F17 }, { 0x1F1E, 0x1F1F },
418f2e35a3aSmrg    { 0x1F46, 0x1F47 }, { 0x1F4E, 0x1F4F }, { 0x1F58, 0x1F58 },
419f2e35a3aSmrg    { 0x1F5A, 0x1F5A }, { 0x1F5C, 0x1F5C }, { 0x1F5E, 0x1F5E },
420f2e35a3aSmrg    { 0x1F7E, 0x1F7F }, { 0x1FB5, 0x1FB5 }, { 0x1FC5, 0x1FC5 },
421f2e35a3aSmrg    { 0x1FD4, 0x1FD5 }, { 0x1FDC, 0x1FDC }, { 0x1FF0, 0x1FF1 },
422f2e35a3aSmrg    { 0x1FF5, 0x1FF5 }, { 0x1FFF, 0x1FFF }, { 0x2028, 0x2029 },
423f2e35a3aSmrg    { 0x2065, 0x2065 }, { 0x2072, 0x2073 }, { 0x208F, 0x208F },
424f2e35a3aSmrg    { 0x209D, 0x209F }, { 0x20C0, 0x20CF }, { 0x20F1, 0x20FF },
425f2e35a3aSmrg    { 0x218C, 0x218F }, { 0x2427, 0x243F }, { 0x244B, 0x245F },
426f2e35a3aSmrg    { 0x2B74, 0x2B75 }, { 0x2B96, 0x2B96 }, { 0x2C2F, 0x2C2F },
427913cc679Smrg    { 0x2C5F, 0x2C5F }, { 0x2CF4, 0x2CF8 }, { 0x2D26, 0x2D26 },
428913cc679Smrg    { 0x2D28, 0x2D2C }, { 0x2D2E, 0x2D2F }, { 0x2D68, 0x2D6E },
429913cc679Smrg    { 0x2D71, 0x2D7E }, { 0x2D97, 0x2D9F }, { 0x2DA7, 0x2DA7 },
430913cc679Smrg    { 0x2DAF, 0x2DAF }, { 0x2DB7, 0x2DB7 }, { 0x2DBF, 0x2DBF },
431913cc679Smrg    { 0x2DC7, 0x2DC7 }, { 0x2DCF, 0x2DCF }, { 0x2DD7, 0x2DD7 },
432f2e35a3aSmrg    { 0x2DDF, 0x2DDF }, { 0x2E53, 0x2E7F }, { 0x2E9A, 0x2E9A },
433913cc679Smrg    { 0x2EF4, 0x2EFF }, { 0x2FD6, 0x2FEF }, { 0x2FFC, 0x2FFF },
434913cc679Smrg    { 0x3040, 0x3040 }, { 0x3097, 0x3098 }, { 0x3100, 0x3104 },
435f2e35a3aSmrg    { 0x3130, 0x3130 }, { 0x318F, 0x318F }, { 0x31E4, 0x31EF },
436f2e35a3aSmrg    { 0x321F, 0x321F }, { 0x4DB6, 0x4DBF }, { 0x9FD6, 0x9FFF },
437f2e35a3aSmrg    { 0xA48D, 0xA48F }, { 0xA4C7, 0xA4CF }, { 0xA62C, 0xA63F },
438f2e35a3aSmrg    { 0xA6F8, 0xA6FF }, { 0xA7C0, 0xA7C1 }, { 0xA7CB, 0xA7F4 },
439f2e35a3aSmrg    { 0xA82D, 0xA82F }, { 0xA83A, 0xA83F }, { 0xA878, 0xA87F },
440f2e35a3aSmrg    { 0xA8C6, 0xA8CD }, { 0xA8DA, 0xA8DF }, { 0xA954, 0xA95E },
441913cc679Smrg    { 0xA97D, 0xA97F }, { 0xA9CE, 0xA9CE }, { 0xA9DA, 0xA9DD },
442913cc679Smrg    { 0xA9FF, 0xA9FF }, { 0xAA37, 0xAA3F }, { 0xAA4E, 0xAA4F },
443913cc679Smrg    { 0xAA5A, 0xAA5B }, { 0xAAC3, 0xAADA }, { 0xAAF7, 0xAB00 },
444913cc679Smrg    { 0xAB07, 0xAB08 }, { 0xAB0F, 0xAB10 }, { 0xAB17, 0xAB1F },
445f2e35a3aSmrg    { 0xAB27, 0xAB27 }, { 0xAB2F, 0xAB2F }, { 0xAB6C, 0xAB6F },
446913cc679Smrg    { 0xABEE, 0xABEF }, { 0xABFA, 0xABFF }, { 0xD7A4, 0xD7AF },
447913cc679Smrg    { 0xD7C7, 0xD7CA }, { 0xD7FC, 0xDFFF }, { 0xFA6E, 0xFA6F },
448913cc679Smrg    { 0xFADA, 0xFAFF }, { 0xFB07, 0xFB12 }, { 0xFB18, 0xFB1C },
449913cc679Smrg    { 0xFB37, 0xFB37 }, { 0xFB3D, 0xFB3D }, { 0xFB3F, 0xFB3F },
450913cc679Smrg    { 0xFB42, 0xFB42 }, { 0xFB45, 0xFB45 }, { 0xFBC2, 0xFBD2 },
451913cc679Smrg    { 0xFD40, 0xFD4F }, { 0xFD90, 0xFD91 }, { 0xFDC8, 0xFDEF },
452913cc679Smrg    { 0xFDFE, 0xFDFF }, { 0xFE1A, 0xFE1F }, { 0xFE53, 0xFE53 },
453913cc679Smrg    { 0xFE67, 0xFE67 }, { 0xFE6C, 0xFE6F }, { 0xFE75, 0xFE75 },
454913cc679Smrg    { 0xFEFD, 0xFEFE }, { 0xFF00, 0xFF00 }, { 0xFFBF, 0xFFC1 },
455913cc679Smrg    { 0xFFC8, 0xFFC9 }, { 0xFFD0, 0xFFD1 }, { 0xFFD8, 0xFFD9 },
456913cc679Smrg    { 0xFFDD, 0xFFDF }, { 0xFFE7, 0xFFE7 }, { 0xFFEF, 0xFFF8 },
457913cc679Smrg    { 0xFFFE, 0xFFFF }, { 0x1000C, 0x1000C }, { 0x10027, 0x10027 },
458913cc679Smrg    { 0x1003B, 0x1003B }, { 0x1003E, 0x1003E }, { 0x1004E, 0x1004F },
459913cc679Smrg    { 0x1005E, 0x1007F }, { 0x100FB, 0x100FF }, { 0x10103, 0x10106 },
460f2e35a3aSmrg    { 0x10134, 0x10136 }, { 0x1018F, 0x1018F }, { 0x1019D, 0x1019F },
461913cc679Smrg    { 0x101A1, 0x101CF }, { 0x101FE, 0x1027F }, { 0x1029D, 0x1029F },
462913cc679Smrg    { 0x102D1, 0x102DF }, { 0x102FC, 0x102FF }, { 0x10324, 0x1032C },
463913cc679Smrg    { 0x1034B, 0x1034F }, { 0x1037B, 0x1037F }, { 0x1039E, 0x1039E },
464913cc679Smrg    { 0x103C4, 0x103C7 }, { 0x103D6, 0x103FF }, { 0x1049E, 0x1049F },
465913cc679Smrg    { 0x104AA, 0x104AF }, { 0x104D4, 0x104D7 }, { 0x104FC, 0x104FF },
466913cc679Smrg    { 0x10528, 0x1052F }, { 0x10564, 0x1056E }, { 0x10570, 0x105FF },
467913cc679Smrg    { 0x10737, 0x1073F }, { 0x10756, 0x1075F }, { 0x10768, 0x107FF },
468913cc679Smrg    { 0x10806, 0x10807 }, { 0x10809, 0x10809 }, { 0x10836, 0x10836 },
469913cc679Smrg    { 0x10839, 0x1083B }, { 0x1083D, 0x1083E }, { 0x10856, 0x10856 },
470913cc679Smrg    { 0x1089F, 0x108A6 }, { 0x108B0, 0x108DF }, { 0x108F3, 0x108F3 },
471913cc679Smrg    { 0x108F6, 0x108FA }, { 0x1091C, 0x1091E }, { 0x1093A, 0x1093E },
472913cc679Smrg    { 0x10940, 0x1097F }, { 0x109B8, 0x109BB }, { 0x109D0, 0x109D1 },
473913cc679Smrg    { 0x10A04, 0x10A04 }, { 0x10A07, 0x10A0B }, { 0x10A14, 0x10A14 },
474f2e35a3aSmrg    { 0x10A18, 0x10A18 }, { 0x10A36, 0x10A37 }, { 0x10A3B, 0x10A3E },
475f2e35a3aSmrg    { 0x10A49, 0x10A4F }, { 0x10A59, 0x10A5F }, { 0x10AA0, 0x10ABF },
476913cc679Smrg    { 0x10AE7, 0x10AEA }, { 0x10AF7, 0x10AFF }, { 0x10B36, 0x10B38 },
477913cc679Smrg    { 0x10B56, 0x10B57 }, { 0x10B73, 0x10B77 }, { 0x10B92, 0x10B98 },
478913cc679Smrg    { 0x10B9D, 0x10BA8 }, { 0x10BB0, 0x10BFF }, { 0x10C49, 0x10C7F },
479f2e35a3aSmrg    { 0x10CB3, 0x10CBF }, { 0x10CF3, 0x10CF9 }, { 0x10D28, 0x10D2F },
480f2e35a3aSmrg    { 0x10D3A, 0x10E5F }, { 0x10E7F, 0x10E7F }, { 0x10EAA, 0x10EAA },
481f2e35a3aSmrg    { 0x10EAE, 0x10EAF }, { 0x10EB2, 0x10EFF }, { 0x10F28, 0x10F2F },
482f2e35a3aSmrg    { 0x10F5A, 0x10FAF }, { 0x10FCC, 0x10FDF }, { 0x10FF7, 0x10FFF },
483f2e35a3aSmrg    { 0x1104E, 0x11051 }, { 0x11070, 0x1107E }, { 0x110C2, 0x110CC },
484f2e35a3aSmrg    { 0x110CE, 0x110CF }, { 0x110E9, 0x110EF }, { 0x110FA, 0x110FF },
485f2e35a3aSmrg    { 0x11135, 0x11135 }, { 0x11148, 0x1114F }, { 0x11177, 0x1117F },
486f2e35a3aSmrg    { 0x111E0, 0x111E0 }, { 0x111F5, 0x111FF }, { 0x11212, 0x11212 },
487f2e35a3aSmrg    { 0x1123F, 0x1127F }, { 0x11287, 0x11287 }, { 0x11289, 0x11289 },
488f2e35a3aSmrg    { 0x1128E, 0x1128E }, { 0x1129E, 0x1129E }, { 0x112AA, 0x112AF },
489f2e35a3aSmrg    { 0x112EB, 0x112EF }, { 0x112FA, 0x112FF }, { 0x11304, 0x11304 },
490f2e35a3aSmrg    { 0x1130D, 0x1130E }, { 0x11311, 0x11312 }, { 0x11329, 0x11329 },
491f2e35a3aSmrg    { 0x11331, 0x11331 }, { 0x11334, 0x11334 }, { 0x1133A, 0x1133A },
492f2e35a3aSmrg    { 0x11345, 0x11346 }, { 0x11349, 0x1134A }, { 0x1134E, 0x1134F },
493f2e35a3aSmrg    { 0x11351, 0x11356 }, { 0x11358, 0x1135C }, { 0x11364, 0x11365 },
494f2e35a3aSmrg    { 0x1136D, 0x1136F }, { 0x11375, 0x113FF }, { 0x1145C, 0x1145C },
495f2e35a3aSmrg    { 0x11462, 0x1147F }, { 0x114C8, 0x114CF }, { 0x114DA, 0x1157F },
496f2e35a3aSmrg    { 0x115B6, 0x115B7 }, { 0x115DE, 0x115FF }, { 0x11645, 0x1164F },
497f2e35a3aSmrg    { 0x1165A, 0x1165F }, { 0x1166D, 0x1167F }, { 0x116B9, 0x116BF },
498f2e35a3aSmrg    { 0x116CA, 0x116FF }, { 0x1171B, 0x1171C }, { 0x1172C, 0x1172F },
499f2e35a3aSmrg    { 0x11740, 0x117FF }, { 0x1183C, 0x1189F }, { 0x118F3, 0x118FE },
500f2e35a3aSmrg    { 0x11907, 0x11908 }, { 0x1190A, 0x1190B }, { 0x11914, 0x11914 },
501f2e35a3aSmrg    { 0x11917, 0x11917 }, { 0x11936, 0x11936 }, { 0x11939, 0x1193A },
502f2e35a3aSmrg    { 0x11947, 0x1194F }, { 0x1195A, 0x1199F }, { 0x119A8, 0x119A9 },
503f2e35a3aSmrg    { 0x119D8, 0x119D9 }, { 0x119E5, 0x119FF }, { 0x11A48, 0x11A4F },
504f2e35a3aSmrg    { 0x11AA3, 0x11ABF }, { 0x11AF9, 0x11BFF }, { 0x11C09, 0x11C09 },
505f2e35a3aSmrg    { 0x11C37, 0x11C37 }, { 0x11C46, 0x11C4F }, { 0x11C6D, 0x11C6F },
506f2e35a3aSmrg    { 0x11C90, 0x11C91 }, { 0x11CA8, 0x11CA8 }, { 0x11CB7, 0x11CFF },
507f2e35a3aSmrg    { 0x11D07, 0x11D07 }, { 0x11D0A, 0x11D0A }, { 0x11D37, 0x11D39 },
508f2e35a3aSmrg    { 0x11D3B, 0x11D3B }, { 0x11D3E, 0x11D3E }, { 0x11D48, 0x11D4F },
509f2e35a3aSmrg    { 0x11D5A, 0x11D5F }, { 0x11D66, 0x11D66 }, { 0x11D69, 0x11D69 },
510f2e35a3aSmrg    { 0x11D8F, 0x11D8F }, { 0x11D92, 0x11D92 }, { 0x11D99, 0x11D9F },
511f2e35a3aSmrg    { 0x11DAA, 0x11EDF }, { 0x11EF9, 0x11FAF }, { 0x11FB1, 0x11FBF },
512f2e35a3aSmrg    { 0x11FF2, 0x11FFE }, { 0x1239A, 0x123FF }, { 0x1246F, 0x1246F },
513f2e35a3aSmrg    { 0x12475, 0x1247F }, { 0x12544, 0x12FFF }, { 0x1342F, 0x1342F },
514f2e35a3aSmrg    { 0x13439, 0x143FF }, { 0x14647, 0x167FF }, { 0x16A39, 0x16A3F },
515f2e35a3aSmrg    { 0x16A5F, 0x16A5F }, { 0x16A6A, 0x16A6D }, { 0x16A70, 0x16ACF },
516f2e35a3aSmrg    { 0x16AEE, 0x16AEF }, { 0x16AF6, 0x16AFF }, { 0x16B46, 0x16B4F },
517f2e35a3aSmrg    { 0x16B5A, 0x16B5A }, { 0x16B62, 0x16B62 }, { 0x16B78, 0x16B7C },
518f2e35a3aSmrg    { 0x16B90, 0x16E3F }, { 0x16E9B, 0x16EFF }, { 0x16F4B, 0x16F4E },
519f2e35a3aSmrg    { 0x16F88, 0x16F8E }, { 0x16FA0, 0x16FDF }, { 0x16FE5, 0x16FEF },
520f2e35a3aSmrg    { 0x16FF2, 0x187FF }, { 0x18CD6, 0x1AFFF }, { 0x1B11F, 0x1B14F },
521f2e35a3aSmrg    { 0x1B153, 0x1B163 }, { 0x1B168, 0x1B16F }, { 0x1B2FC, 0x1BBFF },
522913cc679Smrg    { 0x1BC6B, 0x1BC6F }, { 0x1BC7D, 0x1BC7F }, { 0x1BC89, 0x1BC8F },
523913cc679Smrg    { 0x1BC9A, 0x1BC9B }, { 0x1BCA4, 0x1CFFF }, { 0x1D0F6, 0x1D0FF },
524f2e35a3aSmrg    { 0x1D127, 0x1D128 }, { 0x1D1E9, 0x1D1FF }, { 0x1D246, 0x1D2DF },
525f2e35a3aSmrg    { 0x1D2F4, 0x1D2FF }, { 0x1D357, 0x1D35F }, { 0x1D379, 0x1D3FF },
526f2e35a3aSmrg    { 0x1D455, 0x1D455 }, { 0x1D49D, 0x1D49D }, { 0x1D4A0, 0x1D4A1 },
527f2e35a3aSmrg    { 0x1D4A3, 0x1D4A4 }, { 0x1D4A7, 0x1D4A8 }, { 0x1D4AD, 0x1D4AD },
528f2e35a3aSmrg    { 0x1D4BA, 0x1D4BA }, { 0x1D4BC, 0x1D4BC }, { 0x1D4C4, 0x1D4C4 },
529f2e35a3aSmrg    { 0x1D506, 0x1D506 }, { 0x1D50B, 0x1D50C }, { 0x1D515, 0x1D515 },
530f2e35a3aSmrg    { 0x1D51D, 0x1D51D }, { 0x1D53A, 0x1D53A }, { 0x1D53F, 0x1D53F },
531f2e35a3aSmrg    { 0x1D545, 0x1D545 }, { 0x1D547, 0x1D549 }, { 0x1D551, 0x1D551 },
532f2e35a3aSmrg    { 0x1D6A6, 0x1D6A7 }, { 0x1D7CC, 0x1D7CD }, { 0x1DA8C, 0x1DA9A },
533f2e35a3aSmrg    { 0x1DAA0, 0x1DAA0 }, { 0x1DAB0, 0x1DFFF }, { 0x1E007, 0x1E007 },
534f2e35a3aSmrg    { 0x1E019, 0x1E01A }, { 0x1E022, 0x1E022 }, { 0x1E025, 0x1E025 },
535f2e35a3aSmrg    { 0x1E02B, 0x1E0FF }, { 0x1E12D, 0x1E12F }, { 0x1E13E, 0x1E13F },
536f2e35a3aSmrg    { 0x1E14A, 0x1E14D }, { 0x1E150, 0x1E2BF }, { 0x1E2FA, 0x1E2FE },
537f2e35a3aSmrg    { 0x1E300, 0x1E7FF }, { 0x1E8C5, 0x1E8C6 }, { 0x1E8D7, 0x1E8FF },
538f2e35a3aSmrg    { 0x1E94C, 0x1E94F }, { 0x1E95A, 0x1E95D }, { 0x1E960, 0x1EC70 },
539f2e35a3aSmrg    { 0x1ECB5, 0x1ED00 }, { 0x1ED3E, 0x1EDFF }, { 0x1EE04, 0x1EE04 },
540913cc679Smrg    { 0x1EE20, 0x1EE20 }, { 0x1EE23, 0x1EE23 }, { 0x1EE25, 0x1EE26 },
541913cc679Smrg    { 0x1EE28, 0x1EE28 }, { 0x1EE33, 0x1EE33 }, { 0x1EE38, 0x1EE38 },
542913cc679Smrg    { 0x1EE3A, 0x1EE3A }, { 0x1EE3C, 0x1EE41 }, { 0x1EE43, 0x1EE46 },
543913cc679Smrg    { 0x1EE48, 0x1EE48 }, { 0x1EE4A, 0x1EE4A }, { 0x1EE4C, 0x1EE4C },
544913cc679Smrg    { 0x1EE50, 0x1EE50 }, { 0x1EE53, 0x1EE53 }, { 0x1EE55, 0x1EE56 },
545913cc679Smrg    { 0x1EE58, 0x1EE58 }, { 0x1EE5A, 0x1EE5A }, { 0x1EE5C, 0x1EE5C },
546913cc679Smrg    { 0x1EE5E, 0x1EE5E }, { 0x1EE60, 0x1EE60 }, { 0x1EE63, 0x1EE63 },
547913cc679Smrg    { 0x1EE65, 0x1EE66 }, { 0x1EE6B, 0x1EE6B }, { 0x1EE73, 0x1EE73 },
548913cc679Smrg    { 0x1EE78, 0x1EE78 }, { 0x1EE7D, 0x1EE7D }, { 0x1EE7F, 0x1EE7F },
549913cc679Smrg    { 0x1EE8A, 0x1EE8A }, { 0x1EE9C, 0x1EEA0 }, { 0x1EEA4, 0x1EEA4 },
550913cc679Smrg    { 0x1EEAA, 0x1EEAA }, { 0x1EEBC, 0x1EEEF }, { 0x1EEF2, 0x1EFFF },
551913cc679Smrg    { 0x1F02C, 0x1F02F }, { 0x1F094, 0x1F09F }, { 0x1F0AF, 0x1F0B0 },
552913cc679Smrg    { 0x1F0C0, 0x1F0C0 }, { 0x1F0D0, 0x1F0D0 }, { 0x1F0F6, 0x1F0FF },
553f2e35a3aSmrg    { 0x1F1AE, 0x1F1E5 }, { 0x1F203, 0x1F20F }, { 0x1F23C, 0x1F23F },
554913cc679Smrg    { 0x1F249, 0x1F24F }, { 0x1F252, 0x1F25F }, { 0x1F266, 0x1F2FF },
555f2e35a3aSmrg    { 0x1F6D8, 0x1F6DF }, { 0x1F6ED, 0x1F6EF }, { 0x1F6FD, 0x1F6FF },
556f2e35a3aSmrg    { 0x1F774, 0x1F77F }, { 0x1F7D9, 0x1F7DF }, { 0x1F7EC, 0x1F7FF },
557f2e35a3aSmrg    { 0x1F80C, 0x1F80F }, { 0x1F848, 0x1F84F }, { 0x1F85A, 0x1F85F },
558f2e35a3aSmrg    { 0x1F888, 0x1F88F }, { 0x1F8AE, 0x1F8AF }, { 0x1F8B2, 0x1F8FF },
559f2e35a3aSmrg    { 0x1F979, 0x1F979 }, { 0x1F9CC, 0x1F9CC }, { 0x1FA54, 0x1FA5F },
560f2e35a3aSmrg    { 0x1FA6E, 0x1FA6F }, { 0x1FA75, 0x1FA77 }, { 0x1FA7B, 0x1FA7F },
561f2e35a3aSmrg    { 0x1FA87, 0x1FA8F }, { 0x1FAA9, 0x1FAAF }, { 0x1FAB7, 0x1FABF },
562f2e35a3aSmrg    { 0x1FAC3, 0x1FACF }, { 0x1FAD7, 0x1FAFF }, { 0x1FB93, 0x1FB93 },
563f2e35a3aSmrg    { 0x1FBCB, 0x1FBEF }, { 0x1FBFA, 0x1FFFF }, { 0x2A6D7, 0x2F7FF },
564913cc679Smrg    { 0x2FA1E, 0xE0000 }, { 0xE0002, 0xE001F }, { 0xE0080, 0xE00FF },
565913cc679Smrg    { 0xE01F0, 0x10FFFD }
566d522f475Smrg  };
567f2e35a3aSmrg  /* *INDENT-ON* */
568f2e35a3aSmrg
569f2e35a3aSmrg  /* sorted list of non-overlapping intervals of non-characters */
570f2e35a3aSmrg  /* generated by
571f2e35a3aSmrg   *    uniset +WIDTH-W -cat=Cn -cat=Mn c
572f2e35a3aSmrg   */
573f2e35a3aSmrg  /* *INDENT-OFF* */
574f2e35a3aSmrg  /* generated by run-uniset_dbl 1.2 */
575f2e35a3aSmrg  static const struct interval doublewidth[] = {
576f2e35a3aSmrg    { 0x1100, 0x115F }, { 0x231A, 0x231B }, { 0x2329, 0x232A },
577f2e35a3aSmrg    { 0x23E9, 0x23EC }, { 0x23F0, 0x23F0 }, { 0x23F3, 0x23F3 },
578f2e35a3aSmrg    { 0x25FD, 0x25FE }, { 0x2614, 0x2615 }, { 0x2648, 0x2653 },
579f2e35a3aSmrg    { 0x267F, 0x267F }, { 0x2693, 0x2693 }, { 0x26A1, 0x26A1 },
580f2e35a3aSmrg    { 0x26AA, 0x26AB }, { 0x26BD, 0x26BE }, { 0x26C4, 0x26C5 },
581f2e35a3aSmrg    { 0x26CE, 0x26CE }, { 0x26D4, 0x26D4 }, { 0x26EA, 0x26EA },
582f2e35a3aSmrg    { 0x26F2, 0x26F3 }, { 0x26F5, 0x26F5 }, { 0x26FA, 0x26FA },
583f2e35a3aSmrg    { 0x26FD, 0x26FD }, { 0x2705, 0x2705 }, { 0x270A, 0x270B },
584f2e35a3aSmrg    { 0x2728, 0x2728 }, { 0x274C, 0x274C }, { 0x274E, 0x274E },
585f2e35a3aSmrg    { 0x2753, 0x2755 }, { 0x2757, 0x2757 }, { 0x2795, 0x2797 },
586f2e35a3aSmrg    { 0x27B0, 0x27B0 }, { 0x27BF, 0x27BF }, { 0x2B1B, 0x2B1C },
587f2e35a3aSmrg    { 0x2B50, 0x2B50 }, { 0x2B55, 0x2B55 }, { 0x2E80, 0x2E99 },
588f2e35a3aSmrg    { 0x2E9B, 0x2EF3 }, { 0x2F00, 0x2FD5 }, { 0x2FF0, 0x2FFB },
589f2e35a3aSmrg    { 0x3000, 0x3029 }, { 0x302E, 0x303E }, { 0x3041, 0x3096 },
590f2e35a3aSmrg    { 0x309B, 0x30FF }, { 0x3105, 0x312F }, { 0x3131, 0x318E },
591f2e35a3aSmrg    { 0x3190, 0x31E3 }, { 0x31F0, 0x321E }, { 0x3220, 0x3247 },
592f2e35a3aSmrg    { 0x3250, 0x4DBF }, { 0x4E00, 0xA48C }, { 0xA490, 0xA4C6 },
593f2e35a3aSmrg    { 0xA960, 0xA97C }, { 0xAC00, 0xD7A3 }, { 0xF900, 0xFAFF },
594f2e35a3aSmrg    { 0xFE10, 0xFE19 }, { 0xFE30, 0xFE52 }, { 0xFE54, 0xFE66 },
595f2e35a3aSmrg    { 0xFE68, 0xFE6B }, { 0xFF01, 0xFF60 }, { 0xFFE0, 0xFFE6 },
596f2e35a3aSmrg    { 0x16FE0, 0x16FE3 }, { 0x16FF0, 0x16FF1 }, { 0x17000, 0x187F7 },
597f2e35a3aSmrg    { 0x18800, 0x18CD5 }, { 0x18D00, 0x18D08 }, { 0x1B000, 0x1B11E },
598f2e35a3aSmrg    { 0x1B150, 0x1B152 }, { 0x1B164, 0x1B167 }, { 0x1B170, 0x1B2FB },
599f2e35a3aSmrg    { 0x1F004, 0x1F004 }, { 0x1F0CF, 0x1F0CF }, { 0x1F18E, 0x1F18E },
600f2e35a3aSmrg    { 0x1F191, 0x1F19A }, { 0x1F200, 0x1F202 }, { 0x1F210, 0x1F23B },
601f2e35a3aSmrg    { 0x1F240, 0x1F248 }, { 0x1F250, 0x1F251 }, { 0x1F260, 0x1F265 },
602f2e35a3aSmrg    { 0x1F300, 0x1F320 }, { 0x1F32D, 0x1F335 }, { 0x1F337, 0x1F37C },
603f2e35a3aSmrg    { 0x1F37E, 0x1F393 }, { 0x1F3A0, 0x1F3CA }, { 0x1F3CF, 0x1F3D3 },
604f2e35a3aSmrg    { 0x1F3E0, 0x1F3F0 }, { 0x1F3F4, 0x1F3F4 }, { 0x1F3F8, 0x1F43E },
605f2e35a3aSmrg    { 0x1F440, 0x1F440 }, { 0x1F442, 0x1F4FC }, { 0x1F4FF, 0x1F53D },
606f2e35a3aSmrg    { 0x1F54B, 0x1F54E }, { 0x1F550, 0x1F567 }, { 0x1F57A, 0x1F57A },
607f2e35a3aSmrg    { 0x1F595, 0x1F596 }, { 0x1F5A4, 0x1F5A4 }, { 0x1F5FB, 0x1F64F },
608f2e35a3aSmrg    { 0x1F680, 0x1F6C5 }, { 0x1F6CC, 0x1F6CC }, { 0x1F6D0, 0x1F6D2 },
609f2e35a3aSmrg    { 0x1F6D5, 0x1F6D7 }, { 0x1F6EB, 0x1F6EC }, { 0x1F6F4, 0x1F6FC },
610f2e35a3aSmrg    { 0x1F7E0, 0x1F7EB }, { 0x1F90C, 0x1F93A }, { 0x1F93C, 0x1F945 },
611f2e35a3aSmrg    { 0x1F947, 0x1F978 }, { 0x1F97A, 0x1F9CB }, { 0x1F9CD, 0x1F9FF },
612f2e35a3aSmrg    { 0x1FA70, 0x1FA74 }, { 0x1FA78, 0x1FA7A }, { 0x1FA80, 0x1FA86 },
613f2e35a3aSmrg    { 0x1FA90, 0x1FAA8 }, { 0x1FAB0, 0x1FAB6 }, { 0x1FAC0, 0x1FAC2 },
614f2e35a3aSmrg    { 0x1FAD0, 0x1FAD6 }, { 0x20000, 0x2FFFD }, { 0x30000, 0x3FFFD }
615f2e35a3aSmrg  };
616f2e35a3aSmrg  /* *INDENT-ON* */
617d522f475Smrg
618913cc679Smrg  int result;
619913cc679Smrg
620913cc679Smrg#define Lookup(cmp, table) \
621913cc679Smrg      bisearch(cmp, table, \
622913cc679Smrg               (int) (sizeof(table) / sizeof(struct interval) - 1))
623913cc679Smrg
624d522f475Smrg  /* test for 8-bit control characters */
625913cc679Smrg  if (cmp == 0) {
626913cc679Smrg    result = 0;
627913cc679Smrg  } else if (cmp < 32 || (cmp >= 0x7f && cmp < 0xa0)) {
628913cc679Smrg    result = -1;
629913cc679Smrg  } else if (cmp == 0xad) {
630913cc679Smrg    result = use_latin1;
631913cc679Smrg  } else if (Lookup(cmp, combining)) {
632913cc679Smrg    /* binary search in table of non-spacing characters */
633913cc679Smrg    result = 0;
634913cc679Smrg  } else {
635913cc679Smrg    /* if we arrive here, cmp is not a combining or C0/C1 control character */
636913cc679Smrg    result = 1;
637d522f475Smrg
638f2e35a3aSmrg    if (Lookup(cmp, doublewidth)) {
639913cc679Smrg      result = 2;
640f2e35a3aSmrg    } else if (cmp >= unknowns[0].first && Lookup(cmp, unknowns)) {
641913cc679Smrg      result = -1;
642913cc679Smrg    }
643913cc679Smrg  }
644913cc679Smrg  return result;
645d522f475Smrg}
646d522f475Smrg
647d522f475Smrg
648d522f475Smrgint mk_wcswidth(const wchar_t *pwcs, size_t n)
649d522f475Smrg{
6502e4f8982Smrg  int width = 0;
6512e4f8982Smrg
652f2e35a3aSmrg  for (; *pwcs && n-- > 0; pwcs++) {
6532e4f8982Smrg    int w;
654d522f475Smrg
655d522f475Smrg    if ((w = mk_wcwidth(*pwcs)) < 0)
656d522f475Smrg      return -1;
657d522f475Smrg    else
658d522f475Smrg      width += w;
6592e4f8982Smrg  }
660d522f475Smrg
661d522f475Smrg  return width;
662d522f475Smrg}
663d522f475Smrg
664d522f475Smrg
665d522f475Smrg/*
666d522f475Smrg * The following functions are the same as mk_wcwidth() and
667d522f475Smrg * mk_wcwidth_cjk(), except that spacing characters in the East Asian
668d522f475Smrg * Ambiguous (A) category as defined in Unicode Technical Report #11
669d522f475Smrg * have a column width of 2. This variant might be useful for users of
670d522f475Smrg * CJK legacy encodings who want to migrate to UCS without changing
671d522f475Smrg * the traditional terminal character-width behaviour. It is not
672d522f475Smrg * otherwise recommended for general use.
673d522f475Smrg */
674d522f475Smrgint mk_wcwidth_cjk(wchar_t ucs)
675d522f475Smrg{
676d522f475Smrg  /* sorted list of non-overlapping intervals of East Asian Ambiguous
677d522f475Smrg   * characters, generated by
678d522f475Smrg   *
679d522f475Smrg   * uniset +WIDTH-A -cat=Me -cat=Mn -cat=Cf \
680913cc679Smrg   *    +E000..F8FF \
681913cc679Smrg   *    +F0000..FFFFD \
682913cc679Smrg   *    +100000..10FFFD  c
683d522f475Smrg   *
684d522f475Smrg   * "WIDTH-A" is a file extracted from EastAsianWidth.txt by selecting
685d522f475Smrg   * only those with width "A", and omitting:
686d522f475Smrg   *
687913cc679Smrg   *    0xAD
688913cc679Smrg   *    all lines with "COMBINING"
689d522f475Smrg   */
690f2e35a3aSmrg  /* *INDENT-OFF* */
691f2e35a3aSmrg  /* generated by run-uniset_cjk 1.5 */
692d522f475Smrg  static const struct interval ambiguous[] = {
693d522f475Smrg    { 0x00A1, 0x00A1 }, { 0x00A4, 0x00A4 }, { 0x00A7, 0x00A8 },
694f2e35a3aSmrg    { 0x00AA, 0x00AA }, { 0x00AE, 0x00AE }, { 0x00B0, 0x00B4 },
695f2e35a3aSmrg    { 0x00B6, 0x00BA }, { 0x00BC, 0x00BF }, { 0x00C6, 0x00C6 },
696f2e35a3aSmrg    { 0x00D0, 0x00D0 }, { 0x00D7, 0x00D8 }, { 0x00DE, 0x00E1 },
697f2e35a3aSmrg    { 0x00E6, 0x00E6 }, { 0x00E8, 0x00EA }, { 0x00EC, 0x00ED },
698f2e35a3aSmrg    { 0x00F0, 0x00F0 }, { 0x00F2, 0x00F3 }, { 0x00F7, 0x00FA },
699d522f475Smrg    { 0x00FC, 0x00FC }, { 0x00FE, 0x00FE }, { 0x0101, 0x0101 },
700d522f475Smrg    { 0x0111, 0x0111 }, { 0x0113, 0x0113 }, { 0x011B, 0x011B },
701f2e35a3aSmrg    { 0x0126, 0x0127 }, { 0x012B, 0x012B }, { 0x0131, 0x0133 },
702f2e35a3aSmrg    { 0x0138, 0x0138 }, { 0x013F, 0x0142 }, { 0x0144, 0x0144 },
703f2e35a3aSmrg    { 0x0148, 0x014B }, { 0x014D, 0x014D }, { 0x0152, 0x0153 },
704f2e35a3aSmrg    { 0x0166, 0x0167 }, { 0x016B, 0x016B }, { 0x01CE, 0x01CE },
705d522f475Smrg    { 0x01D0, 0x01D0 }, { 0x01D2, 0x01D2 }, { 0x01D4, 0x01D4 },
706d522f475Smrg    { 0x01D6, 0x01D6 }, { 0x01D8, 0x01D8 }, { 0x01DA, 0x01DA },
707d522f475Smrg    { 0x01DC, 0x01DC }, { 0x0251, 0x0251 }, { 0x0261, 0x0261 },
708f2e35a3aSmrg    { 0x02C4, 0x02C4 }, { 0x02C7, 0x02C7 }, { 0x02C9, 0x02CB },
709f2e35a3aSmrg    { 0x02CD, 0x02CD }, { 0x02D0, 0x02D0 }, { 0x02D8, 0x02DB },
710f2e35a3aSmrg    { 0x02DD, 0x02DD }, { 0x02DF, 0x02DF }, { 0x0391, 0x03A1 },
711f2e35a3aSmrg    { 0x03A3, 0x03A9 }, { 0x03B1, 0x03C1 }, { 0x03C3, 0x03C9 },
712f2e35a3aSmrg    { 0x0401, 0x0401 }, { 0x0410, 0x044F }, { 0x0451, 0x0451 },
713f2e35a3aSmrg    { 0x2010, 0x2010 }, { 0x2013, 0x2016 }, { 0x2018, 0x2019 },
714f2e35a3aSmrg    { 0x201C, 0x201D }, { 0x2020, 0x2022 }, { 0x2024, 0x2027 },
715f2e35a3aSmrg    { 0x2030, 0x2030 }, { 0x2032, 0x2033 }, { 0x2035, 0x2035 },
716f2e35a3aSmrg    { 0x203B, 0x203B }, { 0x203E, 0x203E }, { 0x2074, 0x2074 },
717f2e35a3aSmrg    { 0x207F, 0x207F }, { 0x2081, 0x2084 }, { 0x20AC, 0x20AC },
718f2e35a3aSmrg    { 0x2103, 0x2103 }, { 0x2105, 0x2105 }, { 0x2109, 0x2109 },
719f2e35a3aSmrg    { 0x2113, 0x2113 }, { 0x2116, 0x2116 }, { 0x2121, 0x2122 },
720f2e35a3aSmrg    { 0x2126, 0x2126 }, { 0x212B, 0x212B }, { 0x2153, 0x2154 },
721f2e35a3aSmrg    { 0x215B, 0x215E }, { 0x2160, 0x216B }, { 0x2170, 0x2179 },
722f2e35a3aSmrg    { 0x2189, 0x2189 }, { 0x2190, 0x2199 }, { 0x21B8, 0x21B9 },
723f2e35a3aSmrg    { 0x21D2, 0x21D2 }, { 0x21D4, 0x21D4 }, { 0x21E7, 0x21E7 },
724f2e35a3aSmrg    { 0x2200, 0x2200 }, { 0x2202, 0x2203 }, { 0x2207, 0x2208 },
725f2e35a3aSmrg    { 0x220B, 0x220B }, { 0x220F, 0x220F }, { 0x2211, 0x2211 },
726f2e35a3aSmrg    { 0x2215, 0x2215 }, { 0x221A, 0x221A }, { 0x221D, 0x2220 },
727f2e35a3aSmrg    { 0x2223, 0x2223 }, { 0x2225, 0x2225 }, { 0x2227, 0x222C },
728f2e35a3aSmrg    { 0x222E, 0x222E }, { 0x2234, 0x2237 }, { 0x223C, 0x223D },
729f2e35a3aSmrg    { 0x2248, 0x2248 }, { 0x224C, 0x224C }, { 0x2252, 0x2252 },
730f2e35a3aSmrg    { 0x2260, 0x2261 }, { 0x2264, 0x2267 }, { 0x226A, 0x226B },
731f2e35a3aSmrg    { 0x226E, 0x226F }, { 0x2282, 0x2283 }, { 0x2286, 0x2287 },
732f2e35a3aSmrg    { 0x2295, 0x2295 }, { 0x2299, 0x2299 }, { 0x22A5, 0x22A5 },
733f2e35a3aSmrg    { 0x22BF, 0x22BF }, { 0x2312, 0x2312 }, { 0x2460, 0x24E9 },
734f2e35a3aSmrg    { 0x24EB, 0x254B }, { 0x2550, 0x2573 }, { 0x2580, 0x258F },
735f2e35a3aSmrg    { 0x2592, 0x2595 }, { 0x25A0, 0x25A1 }, { 0x25A3, 0x25A9 },
736f2e35a3aSmrg    { 0x25B2, 0x25B3 }, { 0x25B6, 0x25B7 }, { 0x25BC, 0x25BD },
737f2e35a3aSmrg    { 0x25C0, 0x25C1 }, { 0x25C6, 0x25C8 }, { 0x25CB, 0x25CB },
738f2e35a3aSmrg    { 0x25CE, 0x25D1 }, { 0x25E2, 0x25E5 }, { 0x25EF, 0x25EF },
739f2e35a3aSmrg    { 0x2605, 0x2606 }, { 0x2609, 0x2609 }, { 0x260E, 0x260F },
740f2e35a3aSmrg    { 0x261C, 0x261C }, { 0x261E, 0x261E }, { 0x2640, 0x2640 },
741f2e35a3aSmrg    { 0x2642, 0x2642 }, { 0x2660, 0x2661 }, { 0x2663, 0x2665 },
742f2e35a3aSmrg    { 0x2667, 0x266A }, { 0x266C, 0x266D }, { 0x266F, 0x266F },
743f2e35a3aSmrg    { 0x269E, 0x269F }, { 0x26BF, 0x26BF }, { 0x26C6, 0x26CD },
744f2e35a3aSmrg    { 0x26CF, 0x26D3 }, { 0x26D5, 0x26E1 }, { 0x26E3, 0x26E3 },
745f2e35a3aSmrg    { 0x26E8, 0x26E9 }, { 0x26EB, 0x26F1 }, { 0x26F4, 0x26F4 },
746f2e35a3aSmrg    { 0x26F6, 0x26F9 }, { 0x26FB, 0x26FC }, { 0x26FE, 0x26FF },
747f2e35a3aSmrg    { 0x273D, 0x273D }, { 0x2776, 0x277F }, { 0x2B56, 0x2B59 },
748f2e35a3aSmrg    { 0x3248, 0x324F }, { 0xE000, 0xF8FF }, { 0xFFFD, 0xFFFD },
749f2e35a3aSmrg    { 0x1F100, 0x1F10A }, { 0x1F110, 0x1F12D }, { 0x1F130, 0x1F169 },
750f2e35a3aSmrg    { 0x1F170, 0x1F18D }, { 0x1F18F, 0x1F190 }, { 0x1F19B, 0x1F1AC },
751f2e35a3aSmrg    { 0xF0000, 0xFFFFD }, { 0x100000, 0x10FFFD }
752d522f475Smrg  };
753f2e35a3aSmrg  /* *INDENT-ON* */
754d522f475Smrg
755d522f475Smrg  /* binary search in table of non-spacing characters */
756913cc679Smrg  if (Lookup((unsigned long) ucs, ambiguous))
757d522f475Smrg    return 2;
758d522f475Smrg
759d522f475Smrg  return mk_wcwidth(ucs);
760d522f475Smrg}
761d522f475Smrg
762d522f475Smrg
763d522f475Smrgint mk_wcswidth_cjk(const wchar_t *pwcs, size_t n)
764d522f475Smrg{
7652e4f8982Smrg  int width = 0;
7662e4f8982Smrg
767f2e35a3aSmrg  for (; *pwcs && n-- > 0; pwcs++) {
7682e4f8982Smrg    int w;
769d522f475Smrg
770d522f475Smrg    if ((w = mk_wcwidth_cjk(*pwcs)) < 0)
771d522f475Smrg      return -1;
772d522f475Smrg    else
773d522f475Smrg      width += w;
7742e4f8982Smrg  }
775d522f475Smrg
776d522f475Smrg  return width;
777d522f475Smrg}
778f2e35a3aSmrg
779f2e35a3aSmrg#ifdef TEST_DRIVER
780f2e35a3aSmrgstatic int opt_all = 0;
781f2e35a3aSmrgstatic int opt_quiet = 0;
782f2e35a3aSmrgstatic int opt_wider = 0;
783f2e35a3aSmrgstatic long total_test = 0;
784f2e35a3aSmrgstatic long total_errs = 0;
785f2e35a3aSmrg
786f2e35a3aSmrgstatic void usage(void)
787f2e35a3aSmrg{
788f2e35a3aSmrg  static const char *msg[] =
789f2e35a3aSmrg  {
790f2e35a3aSmrg    "Usage: test_wcwidth [options] [c1[-c1b] [c2-[c2b] [...]]]",
791f2e35a3aSmrg    "",
792f2e35a3aSmrg    "Options:",
793f2e35a3aSmrg    " -a  show all data, rather than just differences",
794f2e35a3aSmrg    " -s  show only summary",
795f2e35a3aSmrg    " -w  use width-characters for ambiguous-width"
796f2e35a3aSmrg  };
797f2e35a3aSmrg  size_t n;
798f2e35a3aSmrg  for (n = 0; n < sizeof(msg) / sizeof(msg[0]); ++n) {
799f2e35a3aSmrg    fprintf(stderr, "%s\n", msg[n]);
800f2e35a3aSmrg  }
801f2e35a3aSmrg  exit(EXIT_FAILURE);
802f2e35a3aSmrg}
803f2e35a3aSmrg
804f2e35a3aSmrgstatic int decode_one(const char *source, char **target)
805f2e35a3aSmrg{
806f2e35a3aSmrg  int result = -1;
807f2e35a3aSmrg  long check;
808f2e35a3aSmrg  int radix = 0;
809f2e35a3aSmrg  if ((source[0] == 'u' || source[0] == 'U') && source[1] == '+') {
810f2e35a3aSmrg    source += 2;
811f2e35a3aSmrg    radix = 16;
812f2e35a3aSmrg  }
813f2e35a3aSmrg  check = strtol(source, target, radix);
814f2e35a3aSmrg  if (*target != NULL && *target != source)
815f2e35a3aSmrg    result = (int) check;
816f2e35a3aSmrg  return result;
817f2e35a3aSmrg}
818f2e35a3aSmrg
819f2e35a3aSmrgstatic int decode_range(const char *source, int *lo, int *hi)
820f2e35a3aSmrg{
821f2e35a3aSmrg  int result = 0;
822f2e35a3aSmrg  char *after1;
823f2e35a3aSmrg  char *after2;
824f2e35a3aSmrg  if ((*lo = decode_one(source, &after1)) >= 0) {
825f2e35a3aSmrg    after1 += strspn(after1, ":-.\t ");
826f2e35a3aSmrg    if ((*hi = decode_one(after1, &after2)) < 0) {
827f2e35a3aSmrg      *hi = *lo;
828f2e35a3aSmrg    }
829f2e35a3aSmrg    result = 1;
830f2e35a3aSmrg  }
831f2e35a3aSmrg  return result;
832f2e35a3aSmrg}
833f2e35a3aSmrg
834f2e35a3aSmrgstatic void do_range(const char *source)
835f2e35a3aSmrg{
836f2e35a3aSmrg  int lo, hi;
837f2e35a3aSmrg  if (decode_range(source, &lo, &hi)) {
838f2e35a3aSmrg    while (lo <= hi) {
839f2e35a3aSmrg      int local_rc = opt_wider ? mk_wcwidth_cjk(lo) : mk_wcwidth(lo);
840f2e35a3aSmrg      int other_rc = wcwidth(lo);
841f2e35a3aSmrg      ++total_test;
842f2e35a3aSmrg      if (opt_all || (local_rc != other_rc)) {
843f2e35a3aSmrg        if (!opt_quiet)
844f2e35a3aSmrg          printf("U+%04X\t%d\t%d\n", lo, local_rc, other_rc);
845f2e35a3aSmrg      }
846f2e35a3aSmrg      if (local_rc != other_rc) {
847f2e35a3aSmrg        ++total_errs;
848f2e35a3aSmrg      }
849f2e35a3aSmrg      ++lo;
850f2e35a3aSmrg    }
851f2e35a3aSmrg  }
852f2e35a3aSmrg}
853f2e35a3aSmrg
854f2e35a3aSmrgint main(int argc, char **argv)
855f2e35a3aSmrg{
856f2e35a3aSmrg  int ch;
857f2e35a3aSmrg
858f2e35a3aSmrg  setlocale(LC_ALL, "");
859f2e35a3aSmrg  while ((ch = getopt(argc, argv, "asw")) != -1) {
860f2e35a3aSmrg    switch (ch) {
861f2e35a3aSmrg    case 'a':
862f2e35a3aSmrg      opt_all = 1;
863f2e35a3aSmrg      break;
864f2e35a3aSmrg    case 's':
865f2e35a3aSmrg      opt_quiet = 1;
866f2e35a3aSmrg      break;
867f2e35a3aSmrg    case 'w':
868f2e35a3aSmrg      opt_wider = 1;
869f2e35a3aSmrg      break;
870f2e35a3aSmrg    default:
871f2e35a3aSmrg      usage();
872f2e35a3aSmrg    }
873f2e35a3aSmrg  }
874f2e35a3aSmrg  if (optind >= argc)
875f2e35a3aSmrg    usage();
876f2e35a3aSmrg  while (optind < argc) {
877f2e35a3aSmrg    do_range(argv[optind++]);
878f2e35a3aSmrg  }
879f2e35a3aSmrg  if (total_test) {
880f2e35a3aSmrg    printf("%ld/%ld mismatches (%.0f%%)\n",
881f2e35a3aSmrg           total_errs,
882f2e35a3aSmrg           total_test,
883f2e35a3aSmrg           (100.0 * (double) total_errs) / (double) total_test);
884f2e35a3aSmrg  }
885f2e35a3aSmrg  return EXIT_SUCCESS;
886f2e35a3aSmrg}
887f2e35a3aSmrg#endif
888