diff options
Diffstat (limited to '3rdparty/utf8proc/test/charwidth.c')
-rw-r--r-- | 3rdparty/utf8proc/test/charwidth.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/3rdparty/utf8proc/test/charwidth.c b/3rdparty/utf8proc/test/charwidth.c new file mode 100644 index 00000000000..330f18eebb4 --- /dev/null +++ b/3rdparty/utf8proc/test/charwidth.c @@ -0,0 +1,71 @@ +#include "tests.h" +#include <ctype.h> +#include <wchar.h> + +static int my_isprint(int c) { + int cat = utf8proc_get_property(c)->category; + return (UTF8PROC_CATEGORY_LU <= cat && cat <= UTF8PROC_CATEGORY_ZS) || + (c == 0x0601 || c == 0x0602 || c == 0x0603 || c == 0x06dd); +} + +int main(int argc, char **argv) +{ + int c, error = 0, updates = 0; + + (void) argc; /* unused */ + (void) argv; /* unused */ + + /* some simple sanity tests of the character widths */ + for (c = 0; c <= 0x110000; ++c) { + int cat = utf8proc_get_property(c)->category; + int w = utf8proc_charwidth(c); + if ((cat == UTF8PROC_CATEGORY_MN || cat == UTF8PROC_CATEGORY_ME) && + w > 0) { + fprintf(stderr, "nonzero width %d for combining char %x\n", w, c); + error = 1; + } + if (w == 0 && + ((cat >= UTF8PROC_CATEGORY_LU && cat <= UTF8PROC_CATEGORY_LO) || + (cat >= UTF8PROC_CATEGORY_ND && cat <= UTF8PROC_CATEGORY_SC) || + (cat >= UTF8PROC_CATEGORY_SO && cat <= UTF8PROC_CATEGORY_ZS))) { + fprintf(stderr, "zero width for symbol-like char %x\n", c); + error = 1; + } + if (c <= 127 && ((!isprint(c) && w > 0) || + (isprint(c) && wcwidth(c) != w))) { + fprintf(stderr, "wcwidth %d mismatch %d for %s ASCII %x\n", + wcwidth(c), w, + isprint(c) ? "printable" : "non-printable", c); + error = 1; + } + if (!my_isprint(c) && w > 0) { + fprintf(stderr, "non-printing %x had width %d\n", c, w); + error = 1; + } + } + check(!error, "utf8proc_charwidth FAILED tests."); + + /* print some other information by compariing with system wcwidth */ + printf("Mismatches with system wcwidth (not necessarily errors):\n"); + for (c = 0; c <= 0x110000; ++c) { + int w = utf8proc_charwidth(c); + int wc = wcwidth(c); + if (sizeof(wchar_t) == 2 && c >= (1<<16)) continue; + /* lots of these errors for out-of-date system unicode tables */ + if (wc == -1 && my_isprint(c) && w > 0) { + updates += 1; +#if 0 + printf(" wcwidth(%x) = -1 for printable char\n", c); +#endif + } + if (wc == -1 && !my_isprint(c) && w > 0) + printf(" wcwidth(%x) = -1 for non-printable width-%d char\n", c, w); + if (wc >= 0 && wc != w) + printf(" wcwidth(%x) = %d != charwidth %d\n", c, wc, w); + } + printf(" ... (positive widths for %d chars unknown to wcwidth) ...\n", + updates); + printf("Character-width tests SUCCEEDED.\n"); + + return 0; +} |