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Kate

katecmd.cpp

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00001 /* This file is part of the KDE libraries
00002    Copyright (C) 2001, 2003 Christoph Cullmann <cullmann@kde.org>
00003 
00004    This library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Library General Public
00006    License version 2 as published by the Free Software Foundation.
00007 
00008    This library is distributed in the hope that it will be useful,
00009    but WITHOUT ANY WARRANTY; without even the implied warranty of
00010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011    Library General Public License for more details.
00012 
00013    You should have received a copy of the GNU Library General Public License
00014    along with this library; see the file COPYING.LIB.  If not, write to
00015    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00016    Boston, MA 02110-1301, USA.
00017 */
00018 
00019 #include "katecmd.h"
00020 #include "kateglobal.h"
00021 
00022 #include <kdebug.h>
00023 
00024 //BEGIN KateCmd
00025 #define CMD_HIST_LENGTH 256
00026 
00027 KateCmd::KateCmd ()
00028 {
00029 }
00030 
00031 KateCmd::~KateCmd ()
00032 {
00033 }
00034 
00035 bool KateCmd::registerCommand (KTextEditor::Command *cmd)
00036 {
00037   QStringList l = cmd->cmds ();
00038 
00039   for (int z=0; z<l.count(); z++)
00040     if (m_dict.contains(l[z]))
00041       return false;
00042 
00043   for (int z=0; z<l.count(); z++) {
00044     m_dict.insert (l[z], cmd);
00045     //kDebug(13050)<<"Inserted command:"<<l[z];
00046   }
00047 
00048   m_cmds += l;
00049 
00050   return true;
00051 }
00052 
00053 bool KateCmd::unregisterCommand (KTextEditor::Command *cmd)
00054 {
00055   QStringList l;
00056 
00057   QHash<QString, KTextEditor::Command*>::const_iterator i = m_dict.constBegin();
00058   while (i != m_dict.constEnd()) {
00059       if (i.value()==cmd) l << i.key();
00060       ++i;
00061   }
00062 
00063   for ( QStringList::Iterator it1 = l.begin(); it1 != l.end(); ++it1 ) {
00064     m_dict.remove(*it1);
00065     //kDebug(13050)<<"Removed command:"<<*it1;
00066   }
00067 
00068   return true;
00069 }
00070 
00071 KTextEditor::Command *KateCmd::queryCommand (const QString &cmd) const
00072 {
00073   // a command can be named ".*[\w\-]+" with the constrain that it must
00074   // contain at least one letter.
00075   int f = 0;
00076   bool b = false;
00077   for ( ; f < cmd.length(); f++ )
00078   {
00079     if ( cmd[f].isLetter() )
00080       b = true;
00081     if ( b && ( ! cmd[f].isLetterOrNumber() && cmd[f] != '-' && cmd[f] != '_' ) )
00082       break;
00083   }
00084   return m_dict.value(cmd.left(f));
00085 }
00086 
00087 QList<KTextEditor::Command*> KateCmd::commands() const
00088 {
00089     return m_dict.values();
00090 }
00091 
00092 QStringList KateCmd::commandList () const
00093 {
00094   return m_cmds;
00095 }
00096 
00097 KateCmd *KateCmd::self ()
00098 {
00099   return KateGlobal::self()->cmdManager ();
00100 }
00101 
00102 void KateCmd::appendHistory( const QString &cmd )
00103 {
00104   if (!m_history.isEmpty()) //this line should be backported to 3.x
00105     if ( m_history.last() == cmd )
00106       return;
00107 
00108   if ( m_history.count() == CMD_HIST_LENGTH )
00109     m_history.removeFirst();
00110 
00111   m_history.append( cmd );
00112 }
00113 
00114 const QString KateCmd::fromHistory( int index ) const
00115 {
00116   if ( index < 0 || index > m_history.count() - 1 )
00117     return QString();
00118   return m_history[ index ];
00119 }
00120 //END KateCmd
00121 
00122 //BEGIN KateCmdShellCompletion
00123 /*
00124    A lot of the code in the below class is copied from
00125    kdelibs/kio/kio/kshellcompletion.cpp
00126    Copyright (C) 2000 David Smith <dsmith@algonet.se>
00127    Copyright (C) 2004 Anders Lund <anders@alweb.dk>
00128 */
00129 KateCmdShellCompletion::KateCmdShellCompletion()
00130   : KCompletion()
00131 {
00132   m_word_break_char = ' ';
00133   m_quote_char1 = '\"';
00134   m_quote_char2 = '\'';
00135   m_escape_char = '\\';
00136 }
00137 
00138 QString KateCmdShellCompletion::makeCompletion( const QString &text )
00139 {
00140         // Split text at the last unquoted space
00141   //
00142   splitText(text, m_text_start, m_text_compl);
00143 
00144   // Make completion on the last part of text
00145   //
00146   return KCompletion::makeCompletion( m_text_compl );
00147 }
00148 
00149 void KateCmdShellCompletion::postProcessMatch( QString *match ) const
00150 {
00151   if ( match->isNull() )
00152     return;
00153 
00154   match->prepend( m_text_start );
00155 }
00156 
00157 void KateCmdShellCompletion::postProcessMatches( QStringList *matches ) const
00158 {
00159   for ( QStringList::Iterator it = matches->begin();
00160         it != matches->end(); it++ )
00161     if ( !(*it).isNull() )
00162       (*it).prepend( m_text_start );
00163 }
00164 
00165 void KateCmdShellCompletion::postProcessMatches( KCompletionMatches *matches ) const
00166 {
00167   for ( KCompletionMatches::Iterator it = matches->begin();
00168         it != matches->end(); it++ )
00169     if ( !(*it).value().isNull() )
00170       (*it).value().prepend( m_text_start );
00171 }
00172 
00173 void KateCmdShellCompletion::splitText(const QString &text, QString &text_start,
00174                                  QString &text_compl) const
00175 {
00176   bool in_quote = false;
00177   bool escaped = false;
00178   QChar p_last_quote_char;
00179   int last_unquoted_space = -1;
00180   int end_space_len = 0;
00181 
00182   for (int pos = 0; pos < text.length(); pos++) {
00183 
00184     end_space_len = 0;
00185 
00186     if ( escaped ) {
00187       escaped = false;
00188     }
00189     else if ( in_quote && text[pos] == p_last_quote_char ) {
00190       in_quote = false;
00191     }
00192     else if ( !in_quote && text[pos] == m_quote_char1 ) {
00193       p_last_quote_char = m_quote_char1;
00194       in_quote = true;
00195     }
00196     else if ( !in_quote && text[pos] == m_quote_char2 ) {
00197       p_last_quote_char = m_quote_char2;
00198       in_quote = true;
00199     }
00200     else if ( text[pos] == m_escape_char ) {
00201       escaped = true;
00202     }
00203     else if ( !in_quote && text[pos] == m_word_break_char ) {
00204 
00205       end_space_len = 1;
00206 
00207       while ( pos+1 < text.length() && text[pos+1] == m_word_break_char ) {
00208         end_space_len++;
00209         pos++;
00210       }
00211 
00212       if ( pos+1 == text.length() )
00213         break;
00214 
00215       last_unquoted_space = pos;
00216     }
00217   }
00218 
00219   text_start = text.left( last_unquoted_space + 1 );
00220 
00221   // the last part without trailing blanks
00222   text_compl = text.mid( last_unquoted_space + 1 );
00223 }
00224 
00225 //END KateCmdShellCompletion
00226 
00227 // kate: space-indent on; indent-width 2; replace-tabs on;

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