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comparison dep/utf8proc/test/charwidth.c @ 343:1faa72660932

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*: transfer back to cmake from autotools autotools just made lots of things more complicated than they should have and many things broke (i.e. translations)
author Paper <paper@paper.us.eu.org>
date Thu, 20 Jun 2024 05:56:06 -0400
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342:adb79bdde329 343:1faa72660932
1 #include "tests.h"
2 #include <ctype.h>
3 #include <wchar.h>
4
5 static int my_unassigned(int c) {
6 int cat = utf8proc_get_property(c)->category;
7 return (cat == UTF8PROC_CATEGORY_CN) || (cat == UTF8PROC_CATEGORY_CO);
8 }
9
10 static int my_isprint(int c) {
11 int cat = utf8proc_get_property(c)->category;
12 return (UTF8PROC_CATEGORY_LU <= cat && cat <= UTF8PROC_CATEGORY_ZS) ||
13 (c == 0x0601 || c == 0x0602 || c == 0x0603 || c == 0x06dd || c == 0x00ad) ||
14 (cat == UTF8PROC_CATEGORY_CN) || (cat == UTF8PROC_CATEGORY_CO);
15 }
16
17 int main(int argc, char **argv)
18 {
19 int c, error = 0, updates = 0;
20
21 (void) argc; /* unused */
22 (void) argv; /* unused */
23
24 /* some simple sanity tests of the character widths */
25 for (c = 0; c <= 0x110000; ++c) {
26 int cat = utf8proc_get_property(c)->category;
27 int w = utf8proc_charwidth(c);
28 if ((cat == UTF8PROC_CATEGORY_MN || cat == UTF8PROC_CATEGORY_ME) && w > 0) {
29 fprintf(stderr, "nonzero width %d for combining char %x\n", w, c);
30 error += 1;
31 }
32 if (w == 0 &&
33 ((cat >= UTF8PROC_CATEGORY_LU && cat <= UTF8PROC_CATEGORY_LO) ||
34 (cat >= UTF8PROC_CATEGORY_ND && cat <= UTF8PROC_CATEGORY_SC) ||
35 (cat >= UTF8PROC_CATEGORY_SO && cat <= UTF8PROC_CATEGORY_ZS))) {
36 fprintf(stderr, "zero width for symbol-like char %x\n", c);
37 error += 1;
38 }
39 if (c <= 127 && ((!isprint(c) && w > 0) || (isprint(c) && wcwidth(c) != w))) {
40 fprintf(stderr, "wcwidth %d mismatch %d for %s ASCII %x\n",
41 wcwidth(c), w,
42 isprint(c) ? "printable" : "non-printable", c);
43 error += 1;
44 }
45 if (!my_isprint(c) && w > 0) {
46 fprintf(stderr, "non-printing %x had width %d\n", c, w);
47 error += 1;
48 }
49 if (my_unassigned(c) && w != 1) {
50 fprintf(stderr, "unexpected width %d for unassigned char %x\n", w, c);
51 error += 1;
52 }
53 }
54 check(!error, "utf8proc_charwidth FAILED %d tests.", error);
55
56 check(utf8proc_charwidth(0x00ad) == 1, "incorrect width for U+00AD (soft hyphen)");
57 check(utf8proc_charwidth(0xe000) == 1, "incorrect width for U+e000 (PUA)");
58
59 /* print some other information by compariing with system wcwidth */
60 printf("Mismatches with system wcwidth (not necessarily errors):\n");
61 for (c = 0; c <= 0x110000; ++c) {
62 int w = utf8proc_charwidth(c);
63 int wc = wcwidth(c);
64 if (sizeof(wchar_t) == 2 && c >= (1<<16)) continue;
65 /* lots of these errors for out-of-date system unicode tables */
66 if (wc == -1 && my_isprint(c) && !my_unassigned(c) && w > 0)
67 updates += 1;
68 if (wc == -1 && !my_isprint(c) && w > 0)
69 printf(" wcwidth(%x) = -1 for non-printable width-%d char\n", c, w);
70 if (wc >= 0 && wc != w)
71 printf(" wcwidth(%x) = %d != charwidth %d\n", c, wc, w);
72 }
73 printf(" ... (positive widths for %d chars unknown to wcwidth) ...\n", updates);
74 printf("Character-width tests SUCCEEDED.\n");
75
76 return 0;
77 }