Added proper encoding conversion with fallback

src/gm-support.c

@@ -1,5 +1,5 @@
 #ifdef HAVE_CONFIG_H
-#  include <config.h>
+#include "../config.h"
 #endif
 
 #include <sys/types.h>
@@ -25,16 +25,20 @@ static regex_t url_regexp;
 
 gchar *
 gm_fix_decimal_point(gchar *line, int len) {
-  int i;
-  struct lconv *l = localeconv();
+	int i;
+	struct lconv *l = localeconv();
 
-  for (i = 0; i < len; i++) {
-    if (line[i] == '.') {
-      line[i] = l->decimal_point[0];
-    }
-  }
+	if (l->decimal_point[0] == '.') {
+		return line;
+	}
+	
+	for (i = 0; i < len; i++) {
+		if (line[i] == '.') {
+			line[i] = l->decimal_point[0];
+		}
+	}
   
-  return line;
+	return line;
 }
 
 gchar *
@@ -563,3 +567,81 @@ gm_default_charset() {
 
   return loc;
 }
+
+void
+gm_notebook_focus_from_label(GtkNotebook *note, gchar *caption) {
+	int p = gtk_notebook_get_n_pages(note);
+	int i;
+	GtkWidget *child;
+
+	for (i = 0; i < p; i++) {
+		child = gtk_notebook_get_nth_page(note, i);
+		if (!g_strcasecmp(gtk_notebook_get_tab_label_text(note, child), 
+				caption)) {
+			gtk_notebook_set_current_page(note, i);
+			break;
+		}
+	}
+}
+
+void
+gm_string_skip_space(gchar **ptr) {
+	while (**ptr != '\0' && g_unichar_isspace(g_utf8_get_char(*ptr))) {
+		*ptr = g_utf8_next_char(*ptr);
+	}
+}
+
+void
+gm_string_skip_nonspace(gchar **ptr) {
+	while (**ptr != '\0' && !g_unichar_isspace(g_utf8_get_char(*ptr))) {
+		*ptr = g_utf8_next_char(*ptr);
+	}
+}
+
+void
+gm_string_skip_till(gchar **ptr, gchar const *find) {
+	gchar const *fptr;
+	gunichar check;
+	
+	while (**ptr != '\0') {
+		check = g_utf8_get_char(*ptr);
+		
+		for	(fptr = find; *fptr; ++fptr) {
+			// CHECK: find should also be treated as utf8!
+			if (check == (gunichar)(*fptr)) {
+				break;
+			}
+		}
+		
+		*ptr = g_utf8_next_char(*ptr);
+	}
+}
+
+gchar *
+gm_to_utf8_with_fallback(gchar const *text, gssize len, gchar const *from, 
+		gchar const *fallback) {
+	gchar *res;
+	gsize read, written;
+	GString *str = g_string_new("");
+	
+	// TODO: use g_iconv instead of g_convert
+	
+	while ((res = g_convert(text, len, "UTF-8", from, &read, &written, NULL))
+			== NULL) {
+		res = g_convert(text, read, "UTF-8", from, NULL, NULL, NULL);
+		str = g_string_append(str, res);
+		
+		str = g_string_append(str, fallback);
+		text = text + read + 1;
+		
+		if (len != -1)
+			len = len - read - 1;
+	}
+	
+	str = g_string_append(str, res);
+	g_free(res);
+	
+	res = str->str;
+	g_string_free(str, FALSE);
+	return res;
+}