diff options
Diffstat (limited to 'src/utf8.cc')
| -rw-r--r-- | src/utf8.cc | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/utf8.cc b/src/utf8.cc index 46a45fe4..47d8112b 100644 --- a/src/utf8.cc +++ b/src/utf8.cc @@ -11,6 +11,7 @@ #include <fltk/utf.h> +#include "../dlib/dlib.h" /* TRUE/FALSE */ #include "utf8.hh" // C++ functions with C linkage ---------------------------------------------- @@ -64,3 +65,30 @@ int a_Utf8_test(const char* src, unsigned int srclen) { return utf8test(src, srclen); } + +/* + * Does s point to a UTF-8-encoded ideographic character? + * + * This is based on http://unicode.org/reports/tr14/#ID plus some guesses + * for what might make the most sense for Dillo. Surprisingly, they include + * Hangul Compatibility Jamo, but they're the experts, so I'll follow along. + */ +bool_t a_Utf8_ideographic(const char *s, const char *end, int *len) +{ + bool_t ret = FALSE; + + if ((uchar_t)*s >= 0xe2) { + /* Unicode char >= U+2000. */ + unsigned unicode = a_Utf8_decode(s, end, len); + + if (unicode >= 0x2e80 && + ((unicode <= 0xa4cf) || + (unicode >= 0xf900 && unicode <= 0xfaff) || + (unicode >= 0xff00 && unicode <= 0xff9f))) { + ret = TRUE; + } + } else { + *len = 1 + (int)a_Utf8_end_of_char(s, 0); + } + return ret; +} |