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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "projectmacro.h"
#include <utils/algorithm.h>
#include <cctype>
namespace ProjectExplorer {
bool Macro::isValid() const
{
return !key.isEmpty() && type != MacroType::Invalid;
}
QByteArray Macro::toByteArray() const
{
switch (type) {
case MacroType::Define: {
if (value.isEmpty())
return QByteArray("#define ") + key;
return QByteArray("#define ") + key + ' ' + value;
}
case MacroType::Undefine: return QByteArray("#undef ") + key;
case MacroType::Invalid: break;
}
return {};
}
QByteArray Macro::toByteArray(const Macros ¯os)
{
QByteArray text;
for (const Macro ¯o : macros) {
const QByteArray macroText = macro.toByteArray();
if (!macroText.isEmpty())
text += macroText + '\n';
}
return text;
}
Macros Macro::toMacros(const QByteArray &text)
{
return tokensLinesToMacros(tokenizeLines(splitLines(text)));
}
Macro Macro::fromKeyValue(const QString &utf16text)
{
return fromKeyValue(utf16text.toUtf8());
}
Macro Macro::fromKeyValue(const QByteArray &text)
{
QByteArray key;
QByteArray value;
MacroType type = MacroType::Invalid;
if (!text.isEmpty()) {
type = MacroType::Define;
int index = text.indexOf('=');
if (index != -1) {
key = text.left(index).trimmed();
value = text.mid(index + 1).trimmed();
} else {
key = text.trimmed();
value = "1";
}
}
return Macro(key, value, type);
}
QByteArray Macro::toKeyValue(const QByteArray &prefix) const
{
QByteArray keyValue;
if (type != MacroType::Invalid)
keyValue = prefix;
if (value.isEmpty())
keyValue += key + '=';
else if (value == "1")
keyValue += key;
else
keyValue += key + '=' + value;
return keyValue;
}
static void removeCarriageReturn(QByteArray &line)
{
if (line.endsWith('\r'))
line.truncate(line.size() - 1);
}
static void removeCarriageReturns(QList<QByteArray> &lines)
{
for (QByteArray &line : lines)
removeCarriageReturn(line);
}
QList<QByteArray> Macro::splitLines(const QByteArray &text)
{
QList<QByteArray> splitLines = text.split('\n');
splitLines.removeAll("");
removeCarriageReturns(splitLines);
return splitLines;
}
QByteArray Macro::removeNonsemanticSpaces(QByteArray line)
{
auto begin = line.begin();
auto end = line.end();
bool notInString = true;
auto newEnd = std::unique(begin, end, [&] (char first, char second) {
notInString = notInString && first != '\"';
return notInString && (first == '#' || std::isspace(first)) && std::isspace(second);
});
line.truncate(line.size() - int(std::distance(newEnd, end)));
return line.trimmed();
}
QList<QByteArray> Macro::tokenizeLine(const QByteArray &line)
{
const QByteArray normalizedLine = removeNonsemanticSpaces(line);
const auto begin = normalizedLine.begin();
auto first = std::find(normalizedLine.begin(), normalizedLine.end(), ' ');
const auto end = normalizedLine.end();
QList<QByteArray> tokens;
if (first != end) {
auto second = std::find(std::next(first), normalizedLine.end(), ' ');
tokens.append(QByteArray(begin, int(std::distance(begin, first))));
std::advance(first, 1);
tokens.append(QByteArray(first, int(std::distance(first, second))));
if (second != end) {
std::advance(second, 1);
tokens.append(QByteArray(second, int(std::distance(second, end))));
}
}
return tokens;
}
QList<QList<QByteArray>> Macro::tokenizeLines(const QList<QByteArray> &lines)
{
QList<QList<QByteArray>> tokensLines = Utils::transform(lines, &Macro::tokenizeLine);
return tokensLines;
}
Macro Macro::tokensToMacro(const QList<QByteArray> &tokens)
{
Macro macro;
if (tokens.size() >= 2 && tokens[0] == "#define") {
macro.type = MacroType::Define;
macro.key = tokens[1];
if (tokens.size() >= 3)
macro.value = tokens[2];
}
return macro;
}
Macros Macro::tokensLinesToMacros(const QList<QList<QByteArray>> &tokensLines)
{
Macros macros;
macros.reserve(tokensLines.size());
for (const QList<QByteArray> &tokens : tokensLines) {
Macro macro = tokensToMacro(tokens);
if (macro.type != MacroType::Invalid)
macros.push_back(std::move(macro));
}
return macros;
}
} // namespace ProjectExplorer
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