Import libguess (based on audacious sources).

1 files changed, 58 insertions, 0 deletions

diff --git a/src/libguess/guess.c b/src/libguess/guess.c
new file mode 100644
index 0000000..0d8320d
--- /dev/null
+++ b/src/libguess/guess.c
@@ -0,0 +1,58 @@
+#include "libguess.h"
+
+mowgli_patricia_t *guess_impl_list = NULL;
+
+void strcasecanon(char *str)
+{
+    while (*str)
+    {
+        *str = toupper(*str);
+        str++;
+    }
+}
+
+static void
+guess_impl_register(const char *lang, guess_impl_f impl)
+{
+    return_if_fail(guess_impl_list != NULL);
+
+    mowgli_patricia_add(guess_impl_list, lang, impl);
+}
+
+static void
+guess_init(void)
+{
+    mowgli_init();
+
+    /* check if already initialized */
+    if (guess_impl_list != NULL)
+        return;
+
+    guess_impl_list = mowgli_patricia_create(strcasecanon);
+
+    guess_impl_register(GUESS_REGION_JP, guess_jp);
+    guess_impl_register(GUESS_REGION_TW, guess_tw);
+    guess_impl_register(GUESS_REGION_CN, guess_cn);
+    guess_impl_register(GUESS_REGION_KR, guess_kr);
+    guess_impl_register(GUESS_REGION_RU, guess_ru);
+    guess_impl_register(GUESS_REGION_AR, guess_ar);
+    guess_impl_register(GUESS_REGION_TR, guess_tr);
+    guess_impl_register(GUESS_REGION_GR, guess_gr);
+    guess_impl_register(GUESS_REGION_HW, guess_hw);
+    guess_impl_register(GUESS_REGION_PL, guess_pl);
+}
+
+const char *
+libguess_determine_encoding(const char *inbuf, int buflen, const char *lang)
+{
+    guess_impl_f impl;
+
+    guess_init();
+
+    impl = mowgli_patricia_retrieve(guess_impl_list, lang);
+    if (impl != NULL)
+        return impl(inbuf, buflen);
+
+    /* TODO: try other languages as fallback? */
+    return NULL;
+}