forked from qt-creator/qt-creator
392 lines
11 KiB
C++
392 lines
11 KiB
C++
/**************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Qt Software Information (qt-info@nokia.com)
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**
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** Commercial Usage
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**
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** If you are unsure which license is appropriate for your use, please
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** contact the sales department at qt-sales@nokia.com.
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**
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**************************************************************************/
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#include "gdbmi.h"
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#include <utils/qtcassert.h>
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#include <QtCore/QByteArray>
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#include <QtCore/QTextStream>
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#include <ctype.h>
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namespace Debugger {
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namespace Internal {
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QTextStream &operator<<(QTextStream &os, const GdbMi &mi)
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{
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return os << mi.toString();
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}
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void GdbMi::parseResultOrValue(const char *&from, const char *to)
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{
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while (from != to && isspace(*from))
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++from;
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//qDebug() << "parseResultOrValue: " << QByteArray(from, to - from);
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parseValue(from, to);
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if (isValid()) {
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//qDebug() << "no valid result in " << QByteArray::fromLatin1(from, to - from);
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return;
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}
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if (from == to || *from == '(')
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return;
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const char *ptr = from;
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while (ptr < to && *ptr != '=') {
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//qDebug() << "adding" << QChar(*ptr) << "to name";
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++ptr;
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}
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m_name = QByteArray(from, ptr - from);
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from = ptr;
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if (from < to && *from == '=') {
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++from;
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parseValue(from, to);
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}
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}
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QByteArray GdbMi::parseCString(const char *&from, const char *to)
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{
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QByteArray result;
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//qDebug() << "parseCString: " << QByteArray::fromUtf16(from, to - from);
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if (*from != '"') {
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qDebug() << "MI Parse Error, double quote expected";
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++from; // So we don't hang
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return QByteArray();
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}
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const char *ptr = from;
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++ptr;
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while (ptr < to) {
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if (*ptr == '"') {
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++ptr;
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result = QByteArray(from + 1, ptr - from - 2);
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break;
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}
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if (*ptr == '\\') {
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++ptr;
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if (ptr == to) {
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qDebug() << "MI Parse Error, unterminated backslash escape";
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from = ptr; // So we don't hang
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return QByteArray();
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}
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}
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++ptr;
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}
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from = ptr;
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int idx = result.indexOf('\\');
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if (idx >= 0) {
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char *dst = result.data() + idx;
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const char *src = dst + 1, *end = result.data() + result.length();
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do {
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char c = *src++;
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switch (c) {
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case 'a': *dst++ = '\a'; break;
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case 'b': *dst++ = '\b'; break;
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case 'f': *dst++ = '\f'; break;
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case 'n': *dst++ = '\n'; break;
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case 'r': *dst++ = '\r'; break;
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case 't': *dst++ = '\t'; break;
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case 'v': *dst++ = '\v'; break;
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case '"': *dst++ = '"'; break;
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case '\\': *dst++ = '\\'; break;
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default:
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{
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int chars = 0;
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uchar prod = 0;
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forever {
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if (c < '0' || c > '7') {
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--src;
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break;
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}
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prod = prod * 8 + c - '0';
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if (++chars == 3 || src == end)
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break;
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c = *src++;
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}
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if (!chars) {
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qDebug() << "MI Parse Error, unrecognized backslash escape";
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return QByteArray();
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}
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*dst++ = prod;
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}
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}
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while (src != end) {
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char c = *src++;
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if (c == '\\')
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break;
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*dst++ = c;
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}
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} while (src != end);
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*dst = 0;
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result.truncate(dst - result.data());
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}
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return result;
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}
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void GdbMi::parseValue(const char *&from, const char *to)
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{
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//qDebug() << "parseValue: " << QByteArray::fromUtf16(from, to - from);
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switch (*from) {
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case '{':
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parseTuple(from, to);
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break;
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case '[':
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parseList(from, to);
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break;
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case '"':
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m_type = Const;
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m_data = parseCString(from, to);
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break;
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default:
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break;
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}
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}
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void GdbMi::parseTuple(const char *&from, const char *to)
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{
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//qDebug() << "parseTuple: " << QByteArray::fromUtf16(from, to - from);
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QTC_ASSERT(*from == '{', /**/);
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++from;
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parseTuple_helper(from, to);
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}
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void GdbMi::parseTuple_helper(const char *&from, const char *to)
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{
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//qDebug() << "parseTuple_helper: " << QByteArray::fromUtf16(from, to - from);
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m_type = Tuple;
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while (from < to) {
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if (*from == '}') {
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++from;
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break;
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}
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GdbMi child;
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child.parseResultOrValue(from, to);
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//qDebug() << "\n=======\n" << qPrintable(child.toString()) << "\n========\n";
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if (!child.isValid())
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return;
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m_children += child;
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if (*from == ',')
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++from;
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}
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}
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void GdbMi::parseList(const char *&from, const char *to)
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{
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//qDebug() << "parseList: " << QByteArray::fromUtf16(from, to - from);
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QTC_ASSERT(*from == '[', /**/);
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++from;
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m_type = List;
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while (from < to) {
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if (*from == ']') {
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++from;
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break;
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}
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GdbMi child;
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child.parseResultOrValue(from, to);
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if (child.isValid())
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m_children += child;
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if (*from == ',')
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++from;
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}
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}
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void GdbMi::setStreamOutput(const QByteArray &name, const QByteArray &content)
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{
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if (content.isEmpty())
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return;
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GdbMi child;
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child.m_type = Const;
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child.m_name = name;
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child.m_data = content;
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m_children += child;
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if (m_type == Invalid)
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m_type = Tuple;
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}
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static QByteArray ind(int indent)
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{
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return QByteArray(2 * indent, ' ');
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}
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void GdbMi::dumpChildren(QByteArray * str, bool multiline, int indent) const
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{
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for (int i = 0; i < m_children.size(); ++i) {
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if (i != 0) {
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*str += ',';
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if (multiline)
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*str += '\n';
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}
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if (multiline)
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*str += ind(indent);
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*str += m_children.at(i).toString(multiline, indent);
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}
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}
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class MyString : public QString {
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public:
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ushort at(int i) const { return constData()[i].unicode(); }
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};
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template<class ST, typename CT>
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inline ST escapeCStringTpl(const ST &ba)
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{
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ST ret;
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ret.reserve(ba.length() * 2);
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for (int i = 0; i < ba.length(); ++i) {
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CT c = ba.at(i);
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switch (c) {
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case '\\': ret += "\\\\"; break;
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case '\a': ret += "\\a"; break;
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case '\b': ret += "\\b"; break;
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case '\f': ret += "\\f"; break;
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case '\n': ret += "\\n"; break;
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case '\r': ret += "\\r"; break;
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case '\t': ret += "\\t"; break;
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case '\v': ret += "\\v"; break;
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case '"': ret += "\\\""; break;
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default:
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if (c < 32 || c == 127) {
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ret += '\\';
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ret += '0' + (c >> 6);
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ret += '0' + ((c >> 3) & 7);
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ret += '0' + (c & 7);
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} else {
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ret += c;
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}
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}
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}
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return ret;
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}
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QString GdbMi::escapeCString(const QString &ba)
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{
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return escapeCStringTpl<MyString, ushort>(static_cast<const MyString &>(ba));
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}
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QByteArray GdbMi::escapeCString(const QByteArray &ba)
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{
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return escapeCStringTpl<QByteArray, uchar>(ba);
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}
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QByteArray GdbMi::toString(bool multiline, int indent) const
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{
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QByteArray result;
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switch (m_type) {
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case Invalid:
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if (multiline)
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result += ind(indent) + "Invalid\n";
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else
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result += "Invalid";
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break;
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case Const:
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if (!m_name.isEmpty())
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result += m_name + "=";
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result += "\"" + escapeCString(m_data) + "\"";
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break;
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case Tuple:
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if (!m_name.isEmpty())
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result += m_name + "=";
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if (multiline) {
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result += "{\n";
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dumpChildren(&result, multiline, indent + 1);
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result += '\n' + ind(indent) + "}";
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} else {
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result += "{";
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dumpChildren(&result, multiline, indent + 1);
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result += "}";
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}
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break;
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case List:
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if (!m_name.isEmpty())
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result += m_name + "=";
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if (multiline) {
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result += "[\n";
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dumpChildren(&result, multiline, indent + 1);
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result += '\n' + ind(indent) + "]";
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} else {
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result += "[";
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dumpChildren(&result, multiline, indent + 1);
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result += "]";
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}
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break;
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}
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return result;
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}
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void GdbMi::fromString(const QByteArray &ba)
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{
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const char *from = ba.constBegin();
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const char *to = ba.constEnd();
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parseResultOrValue(from, to);
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}
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GdbMi GdbMi::findChild(const char *name) const
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{
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for (int i = 0; i < m_children.size(); ++i)
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if (m_children.at(i).m_name == name)
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return m_children.at(i);
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return GdbMi();
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}
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//////////////////////////////////////////////////////////////////////////////////
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//
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// GdbResultRecord
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//
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//////////////////////////////////////////////////////////////////////////////////
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QByteArray stringFromResultClass(GdbResultClass resultClass)
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{
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switch (resultClass) {
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case GdbResultDone: return "done";
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case GdbResultRunning: return "running";
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case GdbResultConnected: return "connected";
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case GdbResultError: return "error";
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case GdbResultExit: return "exit";
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default: return "unknown";
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}
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};
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QByteArray GdbResultRecord::toString() const
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{
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QByteArray result;
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if (token != -1)
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result = QByteArray::number(token);
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result += '^';
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result += stringFromResultClass(resultClass);
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if (data.isValid())
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result += ',' + data.toString();
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result += '\n';
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return result;
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}
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} // namespace Internal
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} // namespace Debugger
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