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Import patches (imported from OpenOffice.org 2.3 by Fedora, at least in

Browse Source 
part). These patches, released under a BSD license, seem to improve the
accuracy of language detection, especially those that don't have a
Latin script.
This commit is contained in:
Thierry Thomas 2007-08-23 22:13:35 +00:00
parent febb30e268
commit 3a00ffa77e
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=198222
10 changed files with 634 additions and 2 deletions
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5
textproc/libtextcat/Makefile
View File

@ -7,9 +7,14 @@
PORTNAME= libtextcat
PORTVERSION= 2.2
PORTREVISION= 1
CATEGORIES= textproc
MASTER_SITES= http://software.wise-guys.nl/download/
#PATCH_SITES= http://cvs.fedora.redhat.com/viewcvs/*checkout*/rpms/libtextcat/devel/
#PATCHFILES= ${PORTNAME}-${PORTVERSION}-OOo.patch
#PATCH_DIST_STRIP= -p1
MAINTAINER= thierry@FreeBSD.org
COMMENT= Language guessing by N-Gram-Based Text Categorization

3
textproc/libtextcat/distinfo
View File

@ -1,3 +1,6 @@
MD5 (libtextcat-2.2.tar.gz) = 128cfc86ed5953e57fe0f5ae98b62c2e
SHA256 (libtextcat-2.2.tar.gz) = 5677badffc48a8d332e345ea4fe225e3577f53fc95deeec8306000b256829655
SIZE (libtextcat-2.2.tar.gz) = 540999
MD5 (libtextcat-2.2-OOo.patch) = 1d5f1026392365c58f7a7406e923f886
SHA256 (libtextcat-2.2-OOo.patch) = c8ffa9db08ec841536be120f847ad871746f14f77b305705c3781182d2449383
SIZE (libtextcat-2.2-OOo.patch) = 21557

26
textproc/libtextcat/files/patch-src_Makefile.in
View File

@ -1,6 +1,6 @@
--- src/Makefile.in.orig Thu May 22 13:39:52 2003
+++ src/Makefile.in Sat Nov 18 22:55:18 2006
@@ -126,7 +126,7 @@
+++ src/Makefile.in Thu Aug 23 23:11:20 2007
@@ -126,18 +126,18 @@
WARNS = -W -Wall -Wshadow -Wpointer-arith
IFLAGS =
@ -9,3 +9,25 @@
VERBOSE = -DVERBOSE
AM_CFLAGS = $(IFLAGS) $(VERBOSE) $(WARNS) $(FLAGS)
AM_LDFLAGS = -g
noinst_HEADERS = \
- common.h constants.h fingerprint.h textcat.h wg_mempool.h
+ common.h constants.h fingerprint.h textcat.h wg_mempool.h utf8misc.h
lib_LTLIBRARIES = libtextcat.la
libtextcat_la_SOURCES = \
- common.c fingerprint.c textcat.c wg_mempool.c
+ common.c fingerprint.c textcat.c wg_mempool.c utf8misc.c
bin_PROGRAMS = createfp
@@ -156,7 +156,7 @@
libtextcat_la_LDFLAGS =
libtextcat_la_LIBADD =
am_libtextcat_la_OBJECTS = common.lo fingerprint.lo textcat.lo \
- wg_mempool.lo
+ wg_mempool.lo utf8misc.lo
libtextcat_la_OBJECTS = $(am_libtextcat_la_OBJECTS)
bin_PROGRAMS = createfp$(EXEEXT)
noinst_PROGRAMS = testtextcat$(EXEEXT)

45
textproc/libtextcat/files/patch-src_constants.h Normal file
View File

@ -0,0 +1,45 @@
--- src/constants.h.orig Thu May 22 13:32:43 2003
+++ src/constants.h Thu Aug 23 22:47:07 2007
@@ -39,6 +39,8 @@
*/
#include <limits.h>
+#define _UTF8_
+
#define DESCRIPTION "out of place"
/* Reported matches are those fingerprints with a score less than best
@@ -59,14 +61,21 @@
/* Maximum number of n-grams in a fingerprint */
#define MAXNGRAMS 400
-/* Maximum size of an n-gram? */
-#define MAXNGRAMSIZE 5
+/* Maximum number of character of an n-gram? */
+#define MAXNGRAMSYMBOL 5
+
+/* Maximum size of the string representing an n-gram (must be greater than number of symbol) */
+#ifdef _UTF8_
+#define MAXNGRAMSIZE 20
+#else
+#define MAXNGRAMSIZE MAXNGRAMSYMBOL
+#endif
/* Which characters are not acceptable in n-grams? */
#define INVALID(c) (isspace((int)c) || isdigit((int)c))
/* Minimum size (in characters) for accepting a document */
-#define MINDOCSIZE 25
+#define MINDOCSIZE 6
/* Maximum penalty for missing an n-gram in fingerprint */
#define MAXOUTOFPLACE 400
@@ -75,5 +84,8 @@
#define TABLEPOW 13
#define MAXSCORE INT_MAX
+
+/* where the fingerprints files are stored */
+#define DEFAULT_FINGERPRINTS_PATH ""
#endif

164
textproc/libtextcat/files/patch-src_fingerprint.c Normal file
View File

@ -0,0 +1,164 @@
--- src/fingerprint.c.orig Thu May 22 13:32:43 2003
+++ src/fingerprint.c Thu Aug 23 22:47:07 2007
@@ -63,6 +63,10 @@
* - put table/heap datastructure in a separate file.
*/
+#ifndef _UTF8_
+#define _UTF8_
+#endif
+
#include "config.h"
#include <stdio.h>
#ifdef HAVE_STDLIB_H
@@ -80,10 +84,12 @@
#include "wg_mempool.h"
#include "constants.h"
+#include "utf8misc.h"
#define TABLESIZE (1<<TABLEPOW)
#define TABLEMASK ((TABLESIZE)-1)
+
typedef struct {
sint2 rank;
@@ -134,29 +140,14 @@
}
-/* checks if n-gram lex is a prefix of key and of length len */
-inline int issame( char *lex, char *key, int len )
-{
- int i;
- for (i=0; i<len; i++) {
- if ( key[i] != lex[i] ) {
- return 0;
- }
- }
- if ( lex[i] != 0 ) {
- return 0;
- }
- return 1;
-}
-
/* increases frequency of ngram(p,len) */
-static inline int increasefreq( table_t *t, char *p, int len )
-{
- uint4 hash = simplehash( p, len ) & TABLEMASK;
+static int increasefreq( table_t *t, char *p, int len )
+{
+ uint4 hash = simplehash( p, len ) & TABLEMASK;
entry_t *entry = t->table[ hash ];
-
- while ( entry ) {
+
+ while ( entry ) {
if ( issame( entry->str, p, len ) ) {
/*** Found it! ***/
entry->cnt++;
@@ -168,7 +159,7 @@
}
/*** Not found, so create ***/
- entry = wgmempool_alloc( t->pool, sizeof(entry_t) );
+ entry = (entry_t*)(wgmempool_alloc( t->pool, sizeof(entry_t) ));
strcpy( entry->str, p );
entry->cnt = 1;
@@ -181,12 +172,12 @@
#if 0
/* looks up ngram(p,len) */
-static entry_t *findfreq( table_t *t, char *p, int len )
-{
- uint4 hash = simplehash( p, len ) & TABLEMASK;
+static entry_t *findfreq( table_t *t, char *p, int len )
+{
+ uint4 hash = simplehash( p, len ) & TABLEMASK;
entry_t *entry = t->table[ hash ];
-
- while ( entry ) {
+
+ while ( entry ) {
if ( issame( entry->str, p, len ) ) {
return entry;
}
@@ -219,7 +210,7 @@
#define GREATER(x,y) ((x).cnt > (y).cnt)
#define LESS(x,y) ((x).cnt < (y).cnt)
-inline static void siftup( table_t *t, unsigned int child )
+static void siftup( table_t *t, unsigned int child )
{
entry_t *heap = t->heap;
unsigned int parent = (child-1) >> 1;
@@ -241,7 +232,7 @@
}
-inline static void siftdown( table_t *t, unsigned int heapsize, uint4 parent )
+static void siftdown( table_t *t, unsigned int heapsize, uint4 parent )
{
entry_t *heap = t->heap;
unsigned int child = parent*2 + 1;
@@ -458,21 +449,27 @@
return dest;
}
-
+/**
+* this function extract all n-gram from past buffer and put them into the table "t"
+* [modified] by Jocelyn Merand to accept utf-8 multi-character symbols to be used in OpenOffice
+*/
static void createngramtable( table_t *t, const char *buf )
{
char n[MAXNGRAMSIZE+1];
const char *p = buf;
int i;
+ int pointer = 0;
/*** Get all n-grams where 1<=n<=MAXNGRAMSIZE. Allow underscores only at borders. ***/
- for (;;p++) {
+ while(1) {
- const char *q = p;
+ const char *q = &p[pointer]; /*[modified] previously p++ above (for(;;p++)) now, it's pointer wich is increased so we have to get the new pointer on the buffer*/
char *m = n;
/*** First char may be an underscore ***/
- *m++ = *q++;
+ int decay = charcopy(q, m); /*[modified] previously *q++ = *m++*/
+ q = &(p[pointer+decay]); /*[modified] the old copying method do not manage multi-character symbols*/
+ m += decay; /*[modified]*/
*m = '\0';
increasefreq( t, n, 1 );
@@ -482,19 +479,22 @@
}
/*** Let the compiler unroll this ***/
- for ( i=2; i<=MAXNGRAMSIZE; i++) {
+ for ( i=2; i<=MAXNGRAMSYMBOL; i++) {
- *m++ = *q;
+ decay = charcopy(q, m); /*[modified] like above*/
+ m += decay;
*m = '\0';
increasefreq( t, n, i );
if ( *q == '_' ) break;
- q++;
+ q += decay;
if ( *q == '\0' ) {
return;
}
}
+
+ pointer = nextcharstart(p,pointer); /*[modified] p[pointer] must point on the next start of symbol, but whith utf next start is not surely next char*/
}
return;
}

50
textproc/libtextcat/files/patch-src_fingerprint.h Normal file
View File

@ -0,0 +1,50 @@
--- /dev/null Thu Aug 23 22:55:00 2007
+++ src/fingerprint.h Mon May 19 14:16:31 2003
@@ -0,0 +1,47 @@
+#ifndef _FINGERPRINT_H_
+#define _FINGERPRINT_H_
+/*
+ * Copyright (C) 2003 WiseGuys Internet B.V.
+ *
+ * THE BSD LICENSE
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * - Neither the name of the WiseGuys Internet B.V. nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "common.h"
+
+extern void *fp_Init(const char *name);
+extern void fp_Done( void *handle );
+extern int fp_Create( void *handle, const char *buffer, uint4 bufsize, uint4 maxngrams );
+extern int fp_Read( void *handle, const char *fname, int maxngrams );
+extern sint4 fp_Compare( void *cat, void *unknown, int cutoff );
+extern void fp_Show( void *handle );
+extern const char *fp_Name( void *handle );
+extern void fp_Print( void *handle, FILE *fp );
+
+#endif

97
textproc/libtextcat/files/patch-src_textcat.c Normal file
View File

@ -0,0 +1,97 @@
--- src/textcat.c.orig Thu May 22 13:32:43 2003
+++ src/textcat.c Thu Aug 23 22:47:07 2007
@@ -74,6 +74,7 @@
typedef struct {
void **fprint;
+ char *fprint_disable;
uint4 size;
uint4 maxsize;
@@ -112,11 +113,21 @@
fp_Done( h->fprint[i] );
}
wg_free( h->fprint );
+ wg_free( h->fprint_disable );
wg_free( h );
}
-extern void *textcat_Init( const char *conffile )
+/** Replaces older function */
+extern void *textcat_Init( const char *conffile ){
+ return special_textcat_Init( conffile, DEFAULT_FINGERPRINTS_PATH );
+}
+
+/**
+ * Originaly this function had only one parameter (conffile) it has been modified since OOo use
+ * Basicaly prefix is the directory path where fingerprints are stored
+ */
+extern void *special_textcat_Init( const char *conffile, const char *prefix )
{
textcat_t *h;
char line[1024];
@@ -134,11 +145,13 @@
h->size = 0;
h->maxsize = 16;
h->fprint = (void **)wg_malloc( sizeof(void*) * h->maxsize );
+ h->fprint_disable = (char *)wg_malloc( sizeof(char*) * h->maxsize ); /*added to store the state of languages*/
while ( wg_getline( line, 1024, fp ) ) {
char *p;
char *segment[4];
- int res;
+ char finger_print_file_name[512];
+ int res;
/*** Skip comments ***/
#ifdef HAVE_STRCHR
@@ -156,17 +169,23 @@
/*** Ensure enough space ***/
if ( h->size == h->maxsize ) {
h->maxsize *= 2;
- h->fprint = (void *)wg_realloc( h->fprint, sizeof(void*) * h->maxsize );
+ h->fprint = (void **)wg_realloc( h->fprint, sizeof(void*) * h->maxsize );
+ h->fprint_disable = (char *)wg_realloc( h->fprint_disable, sizeof(char*) * h->maxsize );
}
/*** Load data ***/
if ((h->fprint[ h->size ] = fp_Init( segment[1] ))==NULL) {
goto ERROR;
}
- if ( fp_Read( h->fprint[h->size], segment[0], 400 ) == 0 ) {
+ finger_print_file_name[0] = '\0';
+ strcat(finger_print_file_name, prefix);
+ strcat(finger_print_file_name, segment[0]);
+
+ if ( fp_Read( h->fprint[h->size], finger_print_file_name, 400 ) == 0 ) {
textcat_Done(h);
goto ERROR;
- }
+ }
+ h->fprint_disable[h->size] = 0xF0; /*0xF0 is the code for enabled languages, 0x0F is for disabled*/
h->size++;
}
@@ -203,11 +222,18 @@
result = _TEXTCAT_RESULT_SHORT;
goto READY;
}
-
+
/*** Calculate the score for each category. ***/
for (i=0; i<h->size; i++) {
- int score = fp_Compare( h->fprint[i], unknown, threshold );
- candidates[i].score = score;
+ int score;
+ if(h->fprint_disable[i] & 0x0F){ /*if this language is disabled*/
+ score = MAXSCORE;
+ }
+ else{
+ score = fp_Compare( h->fprint[i], unknown, threshold );
+ /*printf("Score for %s : %i\n", fp_Name(h->fprint[i]), score);*/
+ }
+ candidates[i].score = score;
candidates[i].name = fp_Name( h->fprint[i] );
if ( score < minscore ) {
minscore = score;

20
textproc/libtextcat/files/patch-src_textcat.h Normal file
View File

@ -0,0 +1,20 @@
--- src/textcat.h.orig Mon May 19 14:16:31 2003
+++ src/textcat.h Thu Aug 23 22:47:07 2007
@@ -51,8 +51,17 @@
* Returns: handle on success, NULL on error. (At the moment, the
* only way errors can occur, is when the library cannot read the
* conffile, or one of the fingerprint files listed in it.)
+ *
+ * Replace older function (and has exacly the same behaviour)
+ * see below
*/
extern void *textcat_Init( const char *conffile );
+
+/**
+ * Originaly this function had only one parameter (conffile) it has been modified since OOo must be able to load alternativ DB
+ * Basicaly prefix is the directory path where fingerprints are stored
+ */
+extern void *special_textcat_Init( const char *conffile, const char *prefix );
/**
* textcat_Done() - Free up resources for handle

135
textproc/libtextcat/files/patch-src_utf8misc.c Normal file
View File

@ -0,0 +1,135 @@
--- /dev/null Thu Aug 23 22:58:13 2007
+++ src/utf8misc.c Thu Aug 23 22:47:07 2007
@@ -0,0 +1,132 @@
+/***************************************************************************
+ * Copyright (C) 2006 by Jocelyn Merand *
+ * joc.mer@gmail.com *
+ * *
+ * THE BSD LICENSE
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * - Neither the name of the WiseGuys Internet B.V. nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ ***************************************************************************/
+
+#ifndef _UTF8_MISC_H_
+#include "utf8misc.h"
+#endif
+
+
+int nextcharstart(const char *str, int position){
+ int pointer = position;
+
+ if(str[pointer] & ESCAPE_MASK){ /*if the first bit of the current char is 1*/
+
+ /*then str[pointer] is an escape character*/
+
+ char escape_char = ((str[pointer] & WEIGHT_MASK) << 1); /*and we use it to count (by bit translation) following characters (only the weightest part)*/
+
+ while(escape_char & ESCAPE_MASK && str[pointer]){/*every step, we move the byte of 1 bit left, when first bit is 0, it's finished*/
+ escape_char = escape_char <<1;
+ ++pointer;
+ }
+ }
+ if(str[pointer]){ /*finaly, if we are not on the \0 character, we jump to the next character*/
+ ++pointer;
+ }
+ return pointer;
+}
+
+
+int charcopy(const char *str, char *dest){
+
+ int pointer = 0;
+ if(str[pointer] & ESCAPE_MASK){ /*if the first bit of the current char is 1*/
+
+ /*then str[pointer] is an escape character*/
+
+ char escape_char = ((str[pointer] & WEIGHT_MASK) << 1); /*and we use it to count following characters (only the weightest part)*/
+
+ while(escape_char & ESCAPE_MASK && str[pointer]){ /*every step, we move the byte of 1 bit left, when first bit is 0, it's finished*/
+ dest[pointer] = str[pointer];
+ escape_char = escape_char <<1;
+ ++pointer;
+ }
+ }
+ if(str[pointer]){
+ dest[pointer] = str[pointer];
+ ++pointer;
+ }
+
+ return pointer;
+}
+
+
+int issame( char *lex, char *key, int len )
+{
+ /*printf("[%s] prefix of [%s] with length %i", lex, key, len);*/
+ int char_counter = 0;
+ int pointer = 0;
+ while(char_counter < len) {
+
+ if(key[pointer] & ESCAPE_MASK){ /*if the first bit of the current char is 1*/
+
+ /*then key[pointer] is an escap character*/
+
+ char escape_char = ((key[pointer] & WEIGHT_MASK) << 1); /*and we use it to count (only the weightest part)*/
+
+ while(escape_char & ESCAPE_MASK && key[pointer] == lex[pointer] ){
+ escape_char = escape_char <<1;
+ ++pointer;
+ }
+ }
+ ++char_counter; /*and we are on a new utf8 character*/
+ if ( key[pointer] != lex[pointer] ) {
+ return 0;
+ /*printf(" NO\n", lex, key, len);*/
+ }
+ ++pointer;
+ }
+ if ( lex[pointer] != '\0' ) {
+ return 0;
+ /*printf(" NO\n");*/
+ }
+
+ /*printf(" YES\n");*/
+
+ return 1;
+}
+
+
+extern int utfstrlen(const char* str){
+ int char_counter = 0;
+ int pointer = 0;
+ while(str[pointer]) {
+ pointer = nextcharstart(str, pointer);
+
+ ++char_counter; /*and we are on a new utf8 character*/
+ }
+ return char_counter;
+}
+

91
textproc/libtextcat/files/patch-src_utf8misc.h Normal file
View File

@ -0,0 +1,91 @@
--- /dev/null Thu Aug 23 22:58:13 2007
+++ src/utf8misc.h Thu Aug 23 22:47:08 2007
@@ -0,0 +1,88 @@
+/***************************************************************************
+ * Copyright (C) 2006 by Jocelyn Merand *
+ * joc.mer@gmail.com *
+ * *
+ * THE BSD LICENSE
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * - Neither the name of the WiseGuys Internet B.V. nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ ***************************************************************************/
+
+#ifndef _UTF8_MISC_H_
+#define _UTF8_MISC_H_
+
+/**
+ * These variables are used in character processing functions
+ * These have been added to manage utf-8 symbols, particularly escape chars
+ */
+#ifdef _UTF8_
+#define ESCAPE_MASK 0x80
+#define WEIGHT_MASK 0xF0
+#else
+#define ESCAPE_MASK 0xFF
+#define WEIGHT_MASK 0x00
+#endif
+
+
+/*
+ * Is used to jump to the next start of char
+ * of course it's only usefull when encoding is utf-8
+ * This function have been added by Jocelyn Merand to use libtextcat in OOo
+ */
+int nextcharstart(const char *str, int position);
+
+
+/*Copy the char in str to dest
+ * of course it's only usefull when encoding is utf8 and the symbol is encoded with more than 1 char
+ * return the number of char jumped
+ * This function have been added by Jocelyn Merand to use libtextcat in OOo
+ */
+int charcopy(const char *str, char *dest);
+
+
+/* checks if n-gram lex is a prefix of key and of length len
+* if _UTF8_ is defined, it uses escap characters and len is not realy the length of lex
+* in this case, len is the number of utf-8 char strlen("€") == 3 but len == 1
+*/
+int issame( char *lex, char *key, int len );
+
+
+/* Counts the number of characters
+* if _UTF8_ is defined, it uses escap characters and the result is not realy the length of str
+* in this case, the result is the number of utf-8 char strlen("€") == 3 but utfstrlen("€") == 1
+*/
+#ifdef __cplusplus
+extern "C" {
+#endif
+extern int utfstrlen(const char* str);
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+