diff options
Diffstat (limited to 'src/linguist/lupdate/qdeclarative.cpp')
| -rw-r--r-- | src/linguist/lupdate/qdeclarative.cpp | 433 |
1 files changed, 433 insertions, 0 deletions
diff --git a/src/linguist/lupdate/qdeclarative.cpp b/src/linguist/lupdate/qdeclarative.cpp new file mode 100644 index 000000000..6bf9cf469 --- /dev/null +++ b/src/linguist/lupdate/qdeclarative.cpp @@ -0,0 +1,433 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Linguist of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "lupdate.h" + +#include <translator.h> + +#include <QtCore/QDebug> +#include <QtCore/QFile> +#include <QtCore/QString> + +#include "parser/qdeclarativejsengine_p.h" +#include "parser/qdeclarativejsparser_p.h" +#include "parser/qdeclarativejslexer_p.h" +#include "parser/qdeclarativejsnodepool_p.h" +#include "parser/qdeclarativejsastvisitor_p.h" +#include "parser/qdeclarativejsast_p.h" + +#include <QCoreApplication> +#include <QFile> +#include <QFileInfo> +#include <QtDebug> +#include <QStringList> + +#include <iostream> +#include <cstdlib> +#include <cctype> + +QT_BEGIN_NAMESPACE + +class LU { + Q_DECLARE_TR_FUNCTIONS(LUpdate) +}; + +using namespace QDeclarativeJS; + +class Comment +{ +public: + Comment() : lastLine(-1) {} + QString extracomment; + QString msgid; + TranslatorMessage::ExtraData extra; + QString sourcetext; + int lastLine; + + bool isValid() const + { return !extracomment.isEmpty() || !msgid.isEmpty() || !sourcetext.isEmpty() || !extra.isEmpty(); } +}; + +class FindTrCalls: protected AST::Visitor +{ +public: + void operator()(Translator *translator, const QString &fileName, AST::Node *node) + { + m_translator = translator; + m_fileName = fileName; + m_component = QFileInfo(fileName).baseName(); //matches qsTr usage in QScriptEngine + accept(node); + } + + QList<Comment> comments; + +protected: + using AST::Visitor::visit; + using AST::Visitor::endVisit; + + void accept(AST::Node *node) + { AST::Node::acceptChild(node, this); } + + virtual void endVisit(AST::CallExpression *node) + { + m_bSource.clear(); + if (AST::IdentifierExpression *idExpr = AST::cast<AST::IdentifierExpression *>(node->base)) { + if (idExpr->name->asString() == QLatin1String("qsTr") || + idExpr->name->asString() == QLatin1String("QT_TR_NOOP")) { + if (!node->arguments) + return; + AST::BinaryExpression *binary = AST::cast<AST::BinaryExpression *>(node->arguments->expression); + if (binary) { + if (!createString(binary)) + m_bSource.clear(); + } + AST::StringLiteral *literal = AST::cast<AST::StringLiteral *>(node->arguments->expression); + if (literal || !m_bSource.isEmpty()) { + const QString source = literal ? literal->value->asString() : m_bSource; + + QString comment; + bool plural = false; + AST::ArgumentList *commentNode = node->arguments->next; + if (commentNode && AST::cast<AST::StringLiteral *>(commentNode->expression)) { + literal = AST::cast<AST::StringLiteral *>(commentNode->expression); + comment = literal->value->asString(); + + AST::ArgumentList *nNode = commentNode->next; + if (nNode) + plural = true; + } + + QString id; + QString extracomment; + TranslatorMessage::ExtraData extra; + Comment scomment = findComment(node->firstSourceLocation().startLine); + if (scomment.isValid()) { + extracomment = scomment.extracomment; + extra = scomment.extra; + id = scomment.msgid; + } + + TranslatorMessage msg(m_component, source, + comment, QString(), m_fileName, + node->firstSourceLocation().startLine, QStringList(), + TranslatorMessage::Unfinished, plural); + msg.setExtraComment(extracomment.simplified()); + msg.setId(id); + msg.setExtras(extra); + m_translator->extend(msg); + } + } else if (idExpr->name->asString() == QLatin1String("qsTranslate") || + idExpr->name->asString() == QLatin1String("QT_TRANSLATE_NOOP")) { + if (node->arguments && AST::cast<AST::StringLiteral *>(node->arguments->expression)) { + AST::StringLiteral *literal = AST::cast<AST::StringLiteral *>(node->arguments->expression); + const QString context = literal->value->asString(); + + QString source; + QString comment; + bool plural = false; + AST::ArgumentList *sourceNode = node->arguments->next; + if (!sourceNode) + return; + literal = AST::cast<AST::StringLiteral *>(sourceNode->expression); + AST::BinaryExpression *binary = AST::cast<AST::BinaryExpression *>(sourceNode->expression); + if (binary) { + if (!createString(binary)) + m_bSource.clear(); + } + if (!literal && m_bSource.isEmpty()) + return; + + QString id; + QString extracomment; + TranslatorMessage::ExtraData extra; + Comment scomment = findComment(node->firstSourceLocation().startLine); + if (scomment.isValid()) { + extracomment = scomment.extracomment; + extra = scomment.extra; + id = scomment.msgid; + } + + source = literal ? literal->value->asString() : m_bSource; + AST::ArgumentList *commentNode = sourceNode->next; + if (commentNode && AST::cast<AST::StringLiteral *>(commentNode->expression)) { + literal = AST::cast<AST::StringLiteral *>(commentNode->expression); + comment = literal->value->asString(); + + AST::ArgumentList *nNode = commentNode->next; + if (nNode) + plural = true; + } + + TranslatorMessage msg(context, source, + comment, QString(), m_fileName, + node->firstSourceLocation().startLine, QStringList(), + TranslatorMessage::Unfinished, plural); + msg.setExtraComment(extracomment.simplified()); + msg.setId(id); + msg.setExtras(extra); + m_translator->extend(msg); + } + } else if (idExpr->name->asString() == QLatin1String("qsTrId") || + idExpr->name->asString() == QLatin1String("QT_TRID_NOOP")) { + if (!node->arguments) + return; + + AST::StringLiteral *literal = AST::cast<AST::StringLiteral *>(node->arguments->expression); + if (literal) { + + QString extracomment; + QString sourcetext; + TranslatorMessage::ExtraData extra; + Comment comment = findComment(node->firstSourceLocation().startLine); + if (comment.isValid()) { + extracomment = comment.extracomment; + sourcetext = comment.sourcetext; + extra = comment.extra; + } + + const QString id = literal->value->asString(); + bool plural = node->arguments->next; + + TranslatorMessage msg(QString(), sourcetext, + QString(), QString(), m_fileName, + node->firstSourceLocation().startLine, QStringList(), + TranslatorMessage::Unfinished, plural); + msg.setExtraComment(extracomment.simplified()); + msg.setId(id); + msg.setExtras(extra); + m_translator->extend(msg); + } + } + } + } + +private: + bool createString(AST::BinaryExpression *b) + { + if (!b || b->op != 0) + return false; + AST::BinaryExpression *l = AST::cast<AST::BinaryExpression *>(b->left); + AST::BinaryExpression *r = AST::cast<AST::BinaryExpression *>(b->right); + AST::StringLiteral *ls = AST::cast<AST::StringLiteral *>(b->left); + AST::StringLiteral *rs = AST::cast<AST::StringLiteral *>(b->right); + if ((!l && !ls) || (!r && !rs)) + return false; + if (l) { + if (!createString(l)) + return false; + } else + m_bSource.prepend(ls->value->asString()); + + if (r) { + if (!createString(r)) + return false; + } else + m_bSource.append(rs->value->asString()); + + return true; + } + + Comment findComment(int loc) + { + if (comments.isEmpty()) + return Comment(); + + int i = 0; + int commentLoc = comments.at(i).lastLine; + while (commentLoc <= loc) { + if (commentLoc == loc) + return comments.at(i); + if (i == comments.count()-1) + break; + commentLoc = comments.at(++i).lastLine; + } + return Comment(); + } + + Translator *m_translator; + QString m_fileName; + QString m_component; + QString m_bSource; +}; + +QString createErrorString(const QString &filename, const QString &code, Parser &parser) +{ + // print out error + QStringList lines = code.split(QLatin1Char('\n')); + lines.append(QLatin1String("\n")); // sentinel. + QString errorString; + + foreach (const DiagnosticMessage &m, parser.diagnosticMessages()) { + + if (m.isWarning()) + continue; + + QString error = filename + QLatin1Char(':') + QString::number(m.loc.startLine) + + QLatin1Char(':') + QString::number(m.loc.startColumn) + QLatin1String(": error: ") + + m.message + QLatin1Char('\n'); + + int line = 0; + if (m.loc.startLine > 0) + line = m.loc.startLine - 1; + + const QString textLine = lines.at(line); + + error += textLine + QLatin1Char('\n'); + + int column = m.loc.startColumn - 1; + if (column < 0) + column = 0; + + column = qMin(column, textLine.length()); + + for (int i = 0; i < column; ++i) { + const QChar ch = textLine.at(i); + if (ch.isSpace()) + error += ch.unicode(); + else + error += QLatin1Char(' '); + } + error += QLatin1String("^\n"); + errorString += error; + } + return errorString; +} + +bool processComment(const QChar *chars, int length, Comment &comment) +{ + // Try to match the logic of the QtScript parser. + if (!length) + return comment.isValid(); + if (*chars == QLatin1Char(':') && chars[1].isSpace()) { + comment.extracomment += QString(chars+1, length-1); + } else if (*chars == QLatin1Char('=') && chars[1].isSpace()) { + comment.msgid = QString(chars+2, length-2).simplified(); + } else if (*chars == QLatin1Char('~') && chars[1].isSpace()) { + QString text = QString(chars+2, length-2).trimmed(); + int k = text.indexOf(QLatin1Char(' ')); + if (k > -1) + comment.extra.insert(text.left(k), text.mid(k + 1).trimmed()); + } else if (*chars == QLatin1Char('%') && chars[1].isSpace()) { + comment.sourcetext.reserve(comment.sourcetext.length() + length-2); + ushort *ptr = (ushort *)comment.sourcetext.data() + comment.sourcetext.length(); + int p = 2, c; + forever { + if (p >= length) + break; + c = chars[p++].unicode(); + if (isspace(c)) + continue; + if (c != '"') + break; + forever { + if (p >= length) + break; + c = chars[p++].unicode(); + if (c == '"') + break; + if (c == '\\') { + if (p >= length) + break; + c = chars[p++].unicode(); + if (c == '\n') + break; + *ptr++ = '\\'; + } + *ptr++ = c; + } + } + comment.sourcetext.resize(ptr - (ushort *)comment.sourcetext.data()); + } + return comment.isValid(); +} + +bool loadQml(Translator &translator, const QString &filename, ConversionData &cd) +{ + cd.m_sourceFileName = filename; + QFile file(filename); + if (!file.open(QIODevice::ReadOnly)) { + cd.appendError(LU::tr("Cannot open %1: %2").arg(filename, file.errorString())); + return false; + } + + const QString code = QTextStream(&file).readAll(); + + Engine driver; + Parser parser(&driver); + + NodePool nodePool(filename, &driver); + driver.setNodePool(&nodePool); + + Lexer lexer(&driver); + lexer.setCode(code, /*line = */ 1); + driver.setLexer(&lexer); + + if (parser.parse()) { + FindTrCalls trCalls; + + // build up a list of comments that contain translation information. + for (int i = 0; i < driver.comments().size(); ++i) { + AST::SourceLocation loc = driver.comments().at(i); + QString commentStr = code.mid(loc.offset, loc.length); + + if (trCalls.comments.isEmpty() || trCalls.comments.last().lastLine != int(loc.startLine)) { + Comment comment; + comment.lastLine = loc.startLine+1; + if (processComment(commentStr.constData(), commentStr.length(), comment)) + trCalls.comments.append(comment); + } else { + Comment &lastComment = trCalls.comments.last(); + lastComment.lastLine += 1; + processComment(commentStr.constData(), commentStr.length(), lastComment); + } + } + + //find all tr calls in the code + trCalls(&translator, filename, parser.ast()); + } else { + QString error = createErrorString(filename, code, parser); + cd.appendError(error); + return false; + } + return true; +} + +QT_END_NAMESPACE |