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qt3/tools/mergetr/mergetr.cpp

348 lines
8.3 KiB

/**********************************************************************
** Copyright (C) 1998-2008 Trolltech ASA. All rights reserved.
**
** This is a utility program for merging findtr msgfiles
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with
** the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#include <qfile.h>
#include <qbuffer.h>
#include <qtextstream.h>
#include <stdio.h>
#include <stdlib.h>
bool isEmpty( const QString& line )
{
int i = 0;
while ( i < int(line.length()) ) {
if ( !line[i].isSpace() )
return FALSE;
i++;
}
return TRUE;
}
bool hasHandle( const QString& line, const QString& handle)
{
return line.left(handle.length()) == handle;
}
bool isUserComment( const QString& line )
{
return line.length() > 2 && line[0] == '#' && line[1].isSpace();
}
bool isSystemComment( const QString& line )
{
return line.length() > 1 && line[0] == '#' && !line[1].isSpace();
}
QString extractContents( const QString& line )
{
QString contents;
int pos = 0;
bool inStr = FALSE;
while ( pos < int(line.length()) ) {
if ( line[pos] == '"' ) {
inStr = !inStr;
pos++;
} else {
if ( inStr ) {
if ( line[pos] == '\\') {
pos++;
switch (char(line[pos]) ) {
case 'n':
contents += '\n';
break;
case 't':
contents += '\t';
break;
case 'r':
contents += '\r';
break;
case 'a':
contents += '\a';
break;
case 'f':
contents += '\f';
break;
case 'v':
contents += '\v';
break;
case 'b':
contents += '\b';
break;
default:
contents += char(line[pos]);
break;
}
} else {
contents += line[pos];
}
}
pos++;
}
}
return contents;
}
struct Item
{
Item() {}
Item( const Item &i ) :usercomments(i.usercomments),
systemcomments(i.systemcomments), msgid(i.msgid), msgstr(i.msgstr){}
Item &operator=( const Item &i ) {
usercomments = i.usercomments; systemcomments = i.systemcomments;
msgid = i.msgid; msgstr = i.msgstr;
return *this;
}
bool isNull() const { return usercomments.isNull()&&systemcomments.isNull()
&&msgstr.isNull() &&msgid.isNull(); }
QString usercomments;
QString systemcomments;
QString msgid;
QString msgstr;
};
enum Status { Equal, First, Second, FirstJunk, SecondJunk };
Item getItem( QTextStream &str, QString &s )
{
Item i;
while ( !str.atEnd() && s.isEmpty() ) {
s = str.readLine().stripWhiteSpace();
}
while ( !str.atEnd() && !s.isEmpty() ) {
if ( isSystemComment(s) ) {
i.systemcomments += s + "\n";
s = str.readLine().stripWhiteSpace();
} else if ( isUserComment(s) ) {
i.usercomments += s + "\n";
s = str.readLine().stripWhiteSpace();
} else if ( hasHandle( s, "msgid" ) ) {
QString r = s + "\n";
s = str.readLine().stripWhiteSpace();
while ( !str.atEnd() && hasHandle(s, "\"") ) {
r += s;
s = str.readLine().stripWhiteSpace();
r += "\n";
}
i.msgid = r;
} else if ( hasHandle( s, "msgstr" ) ) {
QString r = s + "\n";
s = str.readLine().stripWhiteSpace();
while ( hasHandle(s, "\"") ) {
r += s;
s = str.readLine().stripWhiteSpace();
r += "\n";
}
i.msgstr = r;
} else {
s = str.readLine().stripWhiteSpace();
}
}
return i;
}
static int nMerge, nNew, nOld, nJunk;
void writecomment( QTextStream &str, const QString &s )
{
if ( s.isEmpty() )
return;
int idx = 0;
int len = s.length();
while ( idx < len ) {
int nl = s.find( '\n', idx );
if ( nl < 0 ) {
qWarning( "writecomment: string lacks newline" );
str << "# " << s.mid( idx ) << '\n';
return;
}
str << "# " << s.mid( idx, nl-idx+1 );
idx = nl+1;
}
}
void writemerge( QTextStream &str, const Item &i1, const Item &i2 )
{
nMerge++;
if ( !i2.usercomments.isEmpty() )
str << i2.usercomments;
if ( !i1.systemcomments.isEmpty() )
str << i1.systemcomments;
str << i1.msgid;
str << i2.msgstr;
str << "\n";
}
void writenew( QTextStream &str, const Item &i1 )
{
nNew++;
if ( !i1.usercomments.isEmpty() )
str << i1.usercomments;
if ( !i1.systemcomments.isEmpty() )
str << i1.systemcomments;
str << i1.msgid;
str << i1.msgstr;
str << "\n";
}
void writeold( QTextStream &str, const Item &i2 )
{
nOld++;
writecomment( str, i2.usercomments );
writecomment( str, i2.systemcomments );
writecomment( str, i2.msgid );
writecomment( str, i2.msgstr );
str << "\n";
}
void writejunk( QTextStream &str, const Item &it )
{
nJunk++;
if ( !it.usercomments.isEmpty() )
str << it.usercomments;
writecomment( str, it.systemcomments );
writecomment( str, it.msgid );
writecomment( str, it.msgstr );
str << "\n";
}
Status compare( const Item &i1, const Item &i2 )
{
if ( i1.isNull() && i2.isNull() )
return Equal;
if ( i1.isNull() )
return Second;
if ( i2.isNull() )
return First;
if ( i1.msgid.isEmpty() )
return FirstJunk;
if ( i2.msgid.isEmpty() )
return SecondJunk;
QString s1 = extractContents( i1.msgid );
QString s2 = extractContents( i2.msgid );
if ( !s1 && !s2 )
return Equal;
if ( !s1 )
return First;
if ( !s2 )
return Second;
int i = strcmp( s1.ascii(), s2.ascii() );
if ( i < 0 )
return First;
if ( i == 0 )
return Equal;
// i > 0
return Second;
}
void merge( const QString& newname, const QString& oldname,
const QString& resname )
{
QFile f1(newname);
if ( !f1.open( IO_ReadOnly) )
return;
QFile f2(oldname);
if ( !f2.open( IO_ReadOnly) )
return;
QBuffer fout;
fout.open(IO_WriteOnly);
QTextStream in1( &f1 );
QTextStream in2( &f2 );
QTextStream out( &fout );
QString buf1 = in1.readLine().stripWhiteSpace();
QString buf2 = in2.readLine().stripWhiteSpace();
Item i1 = getItem( in1, buf1 );
Item i2 = getItem( in2, buf2 );
while ( !i1.isNull() || !i2.isNull() ) {
Status s = compare( i1, i2 );
if ( s == Equal ) {
writemerge(out,i1,i2);
i1 = getItem( in1, buf1 );
i2 = getItem( in2, buf2 );
} else if ( s == First ) {
writenew( out, i1 );
i1 = getItem( in1, buf1 );
} else if ( s == FirstJunk ) {
//solitary comment
writejunk( out, i1 );
i1 = getItem( in1, buf1 );
} else if ( s == Second ) {
writeold( out, i2 );
i2 = getItem( in2, buf2 );
} else if ( s == SecondJunk ) {
//solitary comment
writejunk( out, i2 );
i2 = getItem( in2, buf2 );
}
}
f1.close();
f2.close();
fout.close();
QFile fileout(resname);
if ( !fileout.open( IO_WriteOnly | IO_Translate ) )
return;
fileout.writeBlock(fout.buffer());
fileout.close();
}
int main( int argc, char* argv[] )
{
int orgfile = 1;
int newfile = 2;
if ( argc <= newfile || ( argc > 1 && argv[1][0] == '-' ) ) {
printf("usage: %s orgfile newfile [outfile]\n", argv[0]);
exit(1);
}
merge( argv[newfile], argv[orgfile],
argc > newfile+1 ? argv[newfile+1] : argv[orgfile] );
printf( "Merged %d entries, added %d new entries and removed %d entries\n",
nMerge, nNew, nOld );
if ( nJunk > 0 )
printf( "Found %d junk entries\n", nJunk );
return 0;
}