Add:Core:New module linguistics to cope with language specialities

git-svn-id: http://svn.code.sf.net/p/navit/code/trunk/navit@2359 ffa7fe5e-494d-0410-b361-a75ebd5db220

3 files changed, 77 insertions, 2 deletions

diff --git a/navit/Makefile.am b/navit/Makefile.am
index 7e87c9635..2212de4fd 100644
--- a/navit/Makefile.am
+++ b/navit/Makefile.am
@@ -24,11 +24,11 @@ EXTRA_DIST = navit.xml
 noinst_LTLIBRARIES        = libnavit.la
 libnavit_la_SOURCES = announcement.c atom.c attr.c cache.c callback.c command.c compass.c coord.c country.c cursor.c data_window.c debug.c \
 	event.c event_glib.h file.c graphics.c gui.c item.c layout.c log.c main.c map.c \
-	mapset.c maptype.c menu.c messages.c navit.c navigation.c osd.c param.c phrase.c plugin.c popup.c \
+	linguistics.c mapset.c maptype.c menu.c messages.c navit.c navigation.c osd.c param.c phrase.c plugin.c popup.c \
 	profile.c projection.c roadprofile.c route.c search.c speech.c transform.c track.c \
 	util.c vehicle.c vehicleprofile.c xmlconfig.c announcement.h atom.h attr.h attr_def.h cache.h callback.h color.h command.h compass.h coord.h country.h \
 	cursor.h data.h data_window.h data_window_int.h debug.h destination.h draw_info.h endianess.h event.h \
-	file.h graphics.h gtkext.h gui.h item.h item_def.h keys.h log.h layer.h layout.h main.h map-share.h map.h\
+	file.h graphics.h gtkext.h gui.h item.h item_def.h keys.h log.h layer.h layout.h linguistics.h main.h map-share.h map.h\
 	map_data.h mapset.h maptype.h menu.h messages.h navigation.h navit.h osd.h \
 	param.h phrase.h plugin.h point.h plugin_def.h projection.h popup.h route.h profile.h roadprofile.h search.h speech.h \
 	transform.h track.h util.h vehicle.h vehicleprofile.h window.h xmlconfig.h zipfile.h \
diff --git a/navit/linguistics.c b/navit/linguistics.c
new file mode 100644
index 000000000..0fb11c081
--- /dev/null
+++ b/navit/linguistics.c
@@ -0,0 +1,74 @@
+#include <string.h>
+#include <stdio.h>
+#include <glib.h>
+#include "debug.h"
+#include "linguistics.h"
+
+static const char *special[][3]={
+{"Ä","A","AE"},
+{"Ö","O","OE"},
+{"Ü","U","UE"},
+{"Ő","O"},
+{"Ű","U"},
+{"Á","A"},
+{"É","E"},
+{"Í","I"},
+{"Ó","O"},
+{"Ú","U"},
+{"ä","a","ae"},
+{"ö","o","oe"},
+{"ü","u","ue"},
+{"ő","o"},
+{"ű","u"},
+{"á","a"},
+{"é","e"},
+{"í","i"},
+{"ó","o"},
+{"ú","u"},
+{"ß","s","ss"},
+};
+
+char *
+linguistics_expand_special(char *str, int mode)
+{
+	char *in=str;
+	char *out,*ret;
+	int found=0;
+	out=ret=g_strdup(str);
+	mode++;
+	while (*in) {
+		char *next=g_utf8_find_next_char(in, NULL);
+		int i,len=next-in;
+		int match=0;
+		if (len > 1) {
+			for (i = 0 ; i < sizeof(special)/sizeof(special[0]); i++) {
+				const char *search=special[i][0];
+				if (!strncmp(in,search,len)) {
+					const char *replace=special[i][mode];
+					if (replace) {
+						int replace_len=strlen(replace);
+						dbg_assert(replace_len <= len);
+						dbg(1,"found %s %s %s\n",in,search,replace);
+						strcpy(out, replace);
+						out+=replace_len;
+						match=1;
+						break;
+					}
+				}
+			}
+			in=next;
+		}
+		if (match) 
+			found=1;
+		else {	
+			while (len-- > 0) 
+				*out++=*in++;
+		}
+	}
+	*out++='\0';
+	if (!found) {
+		g_free(ret);
+		ret=NULL;
+	}
+	return ret;
+}
diff --git a/navit/linguistics.h b/navit/linguistics.h
new file mode 100644
index 000000000..abd23d379
--- /dev/null
+++ b/navit/linguistics.h
@@ -0,0 +1 @@
+char *linguistics_expand_special(char *str, int mode);