diff options
Diffstat (limited to 'e-util/e-unicode.c')
| -rw-r--r-- | e-util/e-unicode.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/e-util/e-unicode.c b/e-util/e-unicode.c index a865a7d0fa..8612048e21 100644 --- a/e-util/e-unicode.c +++ b/e-util/e-unicode.c @@ -10,6 +10,48 @@ #include <unicode.h> #include "e-unicode.h" +const gchar * +e_utf8_strstrcase (const gchar *haystack, const gchar *needle) +{ + gchar *p; + unicode_char_t *huni, *nuni; + unicode_char_t unival; + gint hlen, nlen, hp, np; + + if (haystack == NULL) return NULL; + if (needle == NULL) return NULL; + if (strlen (needle) == 0) return haystack; + + huni = alloca (sizeof (unicode_char_t) * strlen (haystack)); + + for (hlen = 0, p = unicode_get_utf8 (haystack, &unival); p && unival; hlen++, p = unicode_get_utf8 (p, &unival)) { + huni[hlen] = unicode_tolower (unival); + } + + if (!p) return NULL; + if (hlen == 0) return NULL; + + nuni = alloca (sizeof (unicode_char_t) * strlen (needle)); + + for (nlen = 0, p = unicode_get_utf8 (needle, &unival); p && unival; nlen++, p = unicode_get_utf8 (p, &unival)) { + nuni[nlen] = unicode_tolower (unival); + } + + if (!p) return NULL; + if (nlen == 0) return NULL; + + if (hlen < nlen) return NULL; + + for (hp = 0; hp <= hlen - nlen; hp++) { + for (np = 0; np < nlen; np++) { + if (huni[hp + np] != nuni[np]) break; + } + if (np == nlen) return haystack + unicode_offset_to_index (haystack, hp); + } + + return NULL; +} + gchar * e_utf8_from_gtk_event_key (GtkWidget *widget, guint keyval, const gchar *string) { |