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/*
* Copyright (C) 2014 Aaron Seigo <aseigo@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "replStates.h"
#include <iostream>
#include <readline/readline.h>
#include <readline/history.h>
#include <QDebug>
#include <QEvent>
#include <QStateMachine>
#include "syntaxtree.h"
static char *sink_cli_next_tab_complete_match(const char *text, int state);
static char ** sink_cli_tab_completion(const char *text, int start, int end);
ReadState::ReadState(QState *parent)
: QState(parent)
{
rl_completion_entry_function = sink_cli_next_tab_complete_match;
rl_attempted_completion_function = sink_cli_tab_completion;
}
void ReadState::onEntry(QEvent *event)
{
Q_UNUSED(event)
char *line = readline(prompt());
if (!line) {
std::cout << std::endl;
emit exitRequested();
return;
}
// we have actual data, so let's wait for a full line of text
QByteArray input(line);
const QString text = QString(line).simplified();
//qDebug() << "Line is ... " << text;
if (text.length() > 0) {
add_history(line);
}
free(line);
emit command(text);
}
const char *ReadState::prompt() const
{
return "> ";
}
UnfinishedReadState::UnfinishedReadState(QState *parent)
: ReadState(parent)
{
}
const char *UnfinishedReadState::prompt() const
{
return " ";
}
EvalState::EvalState(QState *parent)
: QState(parent)
{
}
void EvalState::onEntry(QEvent *event)
{
QStateMachine::SignalEvent *e = dynamic_cast<QStateMachine::SignalEvent*>(event);
const QString command = e ? e->arguments()[0].toString() : QString();
if (command.isEmpty()) {
complete();
return;
}
if (command.right(1) == "\\") {
m_partial += " " + command.left(command.size() - 1);
continueInput();
} else {
m_partial += " " + command;
complete();
}
}
void EvalState::complete()
{
m_partial = m_partial.simplified();
if (!m_partial.isEmpty()) {
//emit output("Processing ... " + command);
const QStringList commands = SyntaxTree::tokenize(m_partial);
SyntaxTree::self()->run(commands);
m_partial.clear();
}
emit completed();
}
PrintState::PrintState(QState *parent)
: QState(parent)
{
}
void PrintState::onEntry(QEvent *event)
{
QStateMachine::SignalEvent *e = dynamic_cast<QStateMachine::SignalEvent*>(event);
if (e && !e->arguments().isEmpty()) {
const QString command = e->arguments()[0].toString();
QTextStream stream(stdout);
stream << command << "\n";
}
emit completed();
}
static QStringList tab_completion_full_state;
static bool tab_completion_at_root = false;
static char **sink_cli_tab_completion(const char *text, int start, int end)
{
tab_completion_at_root = start == 0;
tab_completion_full_state = QString(rl_line_buffer).remove(start, end - start).split(" ", QString::SkipEmptyParts);
return NULL;
}
static char *sink_cli_next_tab_complete_match(const char *text, int state)
{
const QString fragment(text);
Syntax::List nearest = SyntaxTree::self()->nearestSyntax(tab_completion_full_state, fragment);
//for (auto syntax: nearest) { qDebug() << "Nearest: " << syntax.keyword; }
if (nearest.isEmpty()) {
SyntaxTree::Command command = SyntaxTree::self()->match(tab_completion_full_state);
if (command.first && command.first->completer) {
QStringList commandCompletions = command.first->completer(tab_completion_full_state, fragment, SyntaxTree::self()->state());
if (commandCompletions.size() > state) {
return qstrdup(commandCompletions[state].toUtf8());
}
}
} else if (nearest.size() > state) {
return qstrdup(nearest[state].keyword.toUtf8());
}
return rl_filename_completion_function(text, state);
}
//Ignore warning I don't know how to fix in a moc file
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wundefined-reinterpret-cast"
#include "moc_replStates.cpp"
#pragma clang diagnostic pop
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