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Diffstat (limited to 'tools/linguist/shared/proparser.cpp')
| -rw-r--r-- | tools/linguist/shared/proparser.cpp | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/tools/linguist/shared/proparser.cpp b/tools/linguist/shared/proparser.cpp new file mode 100644 index 0000000..7528361 --- /dev/null +++ b/tools/linguist/shared/proparser.cpp @@ -0,0 +1,217 @@ +/********************************************************************** +** Copyright (C) 2000-2008 Trolltech ASA. All rights reserved. +** +** This file is part of Qt Linguist. +** +** 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 [email protected]. +** +** 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 "proparser.h" + +#include <qdir.h> +#include <qfile.h> +#include <qfileinfo.h> +#include <qregexp.h> +#include <qstringlist.h> +#include <qtextstream.h> + +#ifdef Q_OS_UNIX +#include <unistd.h> +#endif + +#ifdef Q_OS_WIN32 +#define QT_POPEN _popen +#else +#define QT_POPEN popen +#endif + +QString loadFile( const QString &fileName ) +{ + QFile file( fileName ); + if ( !file.open(IO_ReadOnly) ) { + fprintf( stderr, "error: Cannot load '%s': %s\n", + file.name().latin1(), + file.errorString().latin1() ); + return QString(); + } + + QTextStream in( &file ); + return in.read(); +} + +QMap<QString, QString> proFileTagMap( const QString& text ) +{ + QString t = text; + QMap<QString, QString> tagMap; + bool stillProcess = true; // If include() has a $$tag then we need to reprocess + + while(stillProcess) { + + /* + Strip any commments before we try to include. We + still need to do it after we include to make sure the + included file does not have comments + */ + t.replace( QRegExp(QString("#[^\n]*\n")), QString(" ") ); + + /* + Process include() commands. + $$PWD is a special case so we have to change it while + we know where the included file is. + */ + QRegExp callToInclude("include\\s*\\(\\s*([^()\\s]+)\\s*\\)"); + int i = 0; + while ( (i = callToInclude.search(t, i)) != -1 ) { + bool doneWithVar = false; + QString fileName = callToInclude.cap(1); + QString after = fileName.replace("$$PWD", QDir::currentDirPath()); + if (!tagMap.isEmpty() && after.contains("$$")) { + QRegExp var( "\\$\\$[({]?([a-zA-Z0-9_]+)[)}]?" ); + int ii = 0; + while ((ii = after.find(var, ii)) != -1) { + if (tagMap.contains(var.cap(1))) { + after.replace(ii, var.cap(0).length(), tagMap[var.cap(1)]); + } else { // Couldn't find it + doneWithVar = true; + break; + } + } + + } + if (doneWithVar || !after.contains("$$")) { + after = loadFile(after); + QFileInfo fi(callToInclude.cap(1)); + after.replace("$$PWD", fi.dirPath()); + t.replace( i, callToInclude.matchedLength(), after ); + } + i += after.length(); + } + + /* + Strip comments, merge lines ending with backslash, add + spaces around '=' and '+=', replace '\n' with ';', and + simplify white spaces. + */ + t.replace( QRegExp(QString("#[^\n]*\n")), QString(" ") ); + t.replace( QRegExp(QString("\\\\[^\n\\S]*\n")), QString(" ") ); + t.replace( "=", QString(" = ") ); + t.replace( "+ =", QString(" += ") ); + t.replace( "\n", QString(";") ); + t = t.simplifyWhiteSpace(); + + /* + Populate tagMap with 'key = value' entries. + */ + QStringList lines = QStringList::split( QChar(';'), t ); + QStringList::Iterator line; + for ( line = lines.begin(); line != lines.end(); ++line ) { + QStringList toks = QStringList::split( QChar(' '), *line ); + + if ( toks.count() >= 3 && + (toks[1] == QString("=") || toks[1] == QString("+=")) ) { + QString tag = toks.first(); + int k = tag.findRev( QChar(':') ); // as in 'unix:' + if ( k != -1 ) + tag = tag.mid( k + 1 ); + toks.remove( toks.begin() ); + + QString action = toks.first(); + toks.remove( toks.begin() ); + + if ( tagMap.contains(tag) ) { + if ( action == QString("=") ) + tagMap.replace( tag, toks.join(QChar(' ')) ); + else + tagMap[tag] += QChar( ' ' ) + toks.join( QChar(' ') ); + } else { + tagMap[tag] = toks.join( QChar(' ') ); + } + } + } + + /* + Expand $$variables within the 'value' part of a 'key = value' + pair. + */ + QRegExp var( "\\$\\$[({]?([a-zA-Z0-9_]+)[)}]?" ); + QMap<QString, QString>::Iterator it; + for ( it = tagMap.begin(); it != tagMap.end(); ++it ) { + int i = 0; + while ( (i = var.search((*it), i)) != -1 ) { + int len = var.matchedLength(); + QString invocation = var.cap(1); + QString after; + + if ( invocation == "system" ) { + // skip system(); it will be handled in the next pass + ++i; + } else { + if ( tagMap.contains(invocation) ) + after = tagMap[invocation]; + else if (invocation.lower() == "pwd") + after = QDir::currentDirPath(); + (*it).replace( i, len, after ); + i += after.length(); + } + } + } + + /* + Execute system() calls. + */ + QRegExp callToSystem( "\\$\\$system\\s*\\(([^()]*)\\)" ); + for ( it = tagMap.begin(); it != tagMap.end(); ++it ) { + int i = 0; + while ( (i = callToSystem.search((*it), i)) != -1 ) { + /* + This code is stolen from qmake's project.cpp file. + Ideally we would use the same parser, so we wouldn't + have this code duplication. + */ + QString after; + char buff[256]; + FILE *proc = QT_POPEN( callToSystem.cap(1).latin1(), "r" ); + while ( proc && !feof(proc) ) { + int read_in = (int)fread( buff, 1, 255, proc ); + if ( !read_in ) + break; + for ( int i = 0; i < read_in; i++ ) { + if ( buff[i] == '\n' || buff[i] == '\t' ) + buff[i] = ' '; + } + buff[read_in] = '\0'; + after += buff; + } + (*it).replace( i, callToSystem.matchedLength(), after ); + i += after.length(); + } + } + stillProcess = callToInclude.search(t) != -1; + } + return tagMap; +} |