You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
231 lines
6.4 KiB
231 lines
6.4 KiB
/**********************************************************************
|
|
** Copyright (C) 2000 Trolltech AS. All rights reserved.
|
|
**
|
|
** numberh.cpp
|
|
**
|
|
** This file is part of TQt Linguist.
|
|
**
|
|
** See the file LICENSE included in the distribution for the usage
|
|
** and distribution terms.
|
|
**
|
|
** The file is provided AS IS with NO WARRANTY OF ANY KIND,
|
|
** INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR
|
|
** A PARTICULAR PURPOSE.
|
|
**
|
|
**********************************************************************/
|
|
|
|
#include <tqmemarray.h>
|
|
#include <tqcstring.h>
|
|
#include <tqmap.h>
|
|
#include <tqstringlist.h>
|
|
|
|
#include <ctype.h>
|
|
#include <metatranslator.h>
|
|
|
|
typedef TQMap<TQCString, MetaTranslatorMessage> TMM;
|
|
typedef TQValueList<MetaTranslatorMessage> TML;
|
|
|
|
static bool isDigitFriendly( int c )
|
|
{
|
|
return ispunct( c ) || isspace( c );
|
|
}
|
|
|
|
static int numberLength( const char *s )
|
|
{
|
|
int i = 0;
|
|
|
|
if ( isdigit(s[0]) ) {
|
|
do {
|
|
i++;
|
|
} while ( isdigit(s[i]) ||
|
|
(isDigitFriendly(s[i]) &&
|
|
(isdigit(s[i + 1]) ||
|
|
(isDigitFriendly(s[i + 1]) && isdigit(s[i + 2])))) );
|
|
}
|
|
return i;
|
|
}
|
|
|
|
/*
|
|
Returns a version of 'key' where all numbers have been replaced by zeroes. If
|
|
there were none, returns "".
|
|
*/
|
|
static TQCString zeroKey( const char *key )
|
|
{
|
|
TQCString zeroed( strlen(key) + 1 );
|
|
char *z = zeroed.data();
|
|
int i = 0, j = 0;
|
|
int len;
|
|
bool metSomething = FALSE;
|
|
|
|
while ( key[i] != '\0' ) {
|
|
len = numberLength( key + i );
|
|
if ( len > 0 ) {
|
|
i += len;
|
|
z[j++] = '0';
|
|
metSomething = TRUE;
|
|
} else {
|
|
z[j++] = key[i++];
|
|
}
|
|
}
|
|
z[j] = '\0';
|
|
|
|
if ( metSomething )
|
|
return zeroed;
|
|
else
|
|
return "";
|
|
}
|
|
|
|
static TQString translationAttempt( const TQString& oldTranslation,
|
|
const char *oldSource,
|
|
const char *newSource )
|
|
{
|
|
int p = zeroKey( oldSource ).contains( '0' );
|
|
int oldSourceLen = tqstrlen( oldSource );
|
|
TQString attempt;
|
|
TQStringList oldNumbers;
|
|
TQStringList newNumbers;
|
|
TQMemArray<bool> met( p );
|
|
TQMemArray<int> matchedYet( p );
|
|
int i, j;
|
|
int k = 0, ell, best;
|
|
int m, n;
|
|
int pass;
|
|
|
|
/*
|
|
This algorithm is hard to follow, so we'll consider an example
|
|
all along: oldTranslation is "XeT 3.0", oldSource is "TeX 3.0"
|
|
and newSource is "XeT 3.1".
|
|
|
|
First, we set up two tables: oldNumbers and newNumbers. In our
|
|
example, oldNumber[0] is "3.0" and newNumber[0] is "3.1".
|
|
*/
|
|
for ( i = 0, j = 0; i < oldSourceLen; i++, j++ ) {
|
|
m = numberLength( oldSource + i );
|
|
n = numberLength( newSource + j );
|
|
if ( m > 0 ) {
|
|
oldNumbers.append( TQCString(oldSource + i, m + 1) );
|
|
newNumbers.append( TQCString(newSource + j, n + 1) );
|
|
i += m;
|
|
j += n;
|
|
met[k] = FALSE;
|
|
matchedYet[k] = 0;
|
|
k++;
|
|
}
|
|
}
|
|
|
|
/*
|
|
We now go over the old translation, "XeT 3.0", one letter at a
|
|
time, looking for numbers found in oldNumbers. Whenever such a
|
|
number is met, it is replaced with its newNumber equivalent. In
|
|
our example, the "3.0" of "XeT 3.0" becomes "3.1".
|
|
*/
|
|
for ( i = 0; i < (int) oldTranslation.length(); i++ ) {
|
|
attempt += oldTranslation[i];
|
|
for ( k = 0; k < p; k++ ) {
|
|
if ( oldTranslation[i] == oldNumbers[k][matchedYet[k]] )
|
|
matchedYet[k]++;
|
|
else
|
|
matchedYet[k] = 0;
|
|
}
|
|
|
|
/*
|
|
Let's find out if the last character ended a match. We make
|
|
two passes over the data. In the first pass, we try to
|
|
match only numbers that weren't matched yet; if that fails,
|
|
the second pass does the trick. This is useful in some
|
|
suspicious cases, flagged below.
|
|
*/
|
|
for ( pass = 0; pass < 2; pass++ ) {
|
|
best = p; // an impossible value
|
|
for ( k = 0; k < p; k++ ) {
|
|
if ( (!met[k] || pass > 0) &&
|
|
matchedYet[k] == (int) oldNumbers[k].length() &&
|
|
numberLength(oldTranslation.latin1() + (i + 1) -
|
|
matchedYet[k]) == matchedYet[k] ) {
|
|
// the longer the better
|
|
if ( best == p || matchedYet[k] > matchedYet[best] )
|
|
best = k;
|
|
}
|
|
}
|
|
if ( best != p ) {
|
|
attempt.truncate( attempt.length() - matchedYet[best] );
|
|
attempt += newNumbers[best];
|
|
met[best] = TRUE;
|
|
for ( k = 0; k < p; k++ )
|
|
matchedYet[k] = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
We flag two kinds of suspicious cases. They are identified as
|
|
such with comments such as "{2000?}" at the end.
|
|
|
|
Example of the first kind: old source text "TeX 3.0" translated
|
|
as "XeT 2.0" is flagged "TeX 2.0 {3.0?}", no matter what the
|
|
new text is.
|
|
*/
|
|
for ( k = 0; k < p; k++ ) {
|
|
if ( !met[k] )
|
|
attempt += TQString( " {" ) + newNumbers[k] + TQString( "?}" );
|
|
}
|
|
|
|
/*
|
|
Example of the second kind: "1 of 1" translated as "1 af 1",
|
|
with new source text "1 of 2", generates "1 af 2 {1 or 2?}"
|
|
because it's not clear which of "1 af 2" and "2 af 1" is right.
|
|
*/
|
|
for ( k = 0; k < p; k++ ) {
|
|
for ( ell = 0; ell < p; ell++ ) {
|
|
if ( k != ell && oldNumbers[k] == oldNumbers[ell] &&
|
|
newNumbers[k] < newNumbers[ell] )
|
|
attempt += TQString( " {" ) + newNumbers[k] + TQString( " or " ) +
|
|
newNumbers[ell] + TQString( "?}" );
|
|
}
|
|
}
|
|
return attempt;
|
|
}
|
|
|
|
/*
|
|
Augments a MetaTranslator with translations easily derived from
|
|
similar existing (probably obsolete) translations.
|
|
|
|
For example, if "TeX 3.0" is translated as "XeT 3.0" and "TeX 3.1"
|
|
has no translation, "XeT 3.1" is added to the translator and is
|
|
marked Unfinished.
|
|
*/
|
|
void applyNumberHeuristic( MetaTranslator *tor, bool verbose )
|
|
{
|
|
TMM translated, untranslated;
|
|
TMM::Iterator t, u;
|
|
TML all = tor->messages();
|
|
TML::Iterator it;
|
|
int inserted = 0;
|
|
|
|
for ( it = all.begin(); it != all.end(); ++it ) {
|
|
if ( (*it).type() == MetaTranslatorMessage::Unfinished ) {
|
|
if ( (*it).translation().isEmpty() )
|
|
untranslated.insert( zeroKey((*it).sourceText()), *it );
|
|
} else if ( !(*it).translation().isEmpty() ) {
|
|
translated.insert( zeroKey((*it).sourceText()), *it );
|
|
}
|
|
}
|
|
|
|
for ( u = untranslated.begin(); u != untranslated.end(); ++u ) {
|
|
t = translated.find( u.key() );
|
|
if ( t != translated.end() && !t.key().isEmpty() &&
|
|
qstrcmp((*t).sourceText(), (*u).sourceText()) != 0 ) {
|
|
MetaTranslatorMessage m( *u );
|
|
m.setTranslation( translationAttempt((*t).translation(),
|
|
(*t).sourceText(),
|
|
(*u).sourceText()) );
|
|
tor->insert( m );
|
|
inserted++;
|
|
}
|
|
}
|
|
if ( verbose && inserted != 0 )
|
|
tqWarning( " number heuristic provided %d translation%s",
|
|
inserted, inserted == 1 ? "" : "s" );
|
|
}
|