package com.maddyhome.idea.vim.ex.handler;

/*
* IdeaVim - A Vim emulator plugin for IntelliJ Idea
* Copyright (C) 2003 Rick Maddy
*
* 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.editor.Editor;
import com.maddyhome.idea.vim.command.Command;
import com.maddyhome.idea.vim.ex.CommandHandler;
import com.maddyhome.idea.vim.ex.ExCommand;
import com.maddyhome.idea.vim.group.CommandGroups;
import com.maddyhome.idea.vim.group.MotionGroup;

/**
 * This handles Ex commands that just specify a range which translates to moving the cursor to the line given by the
 * range.
 */
public class GotoLineHandler extends CommandHandler
{
    /**
     * Create the handler
     */
    public GotoLineHandler()
    {
        super(RANGE_REQUIRED | ARGUMENT_OPTIONAL, Command.FLAG_MOT_EXCLUSIVE);
    }

    /**
     * Moves the cursor to the line entered by the user
     * @param editor The editor to perform the action in.
     * @param context The data context
     * @param cmd The complete Ex command including range, command, and arguments
     * @return True if able to perform the command, false if not
     */
    public boolean execute(Editor editor, DataContext context, ExCommand cmd)
    {
        int count = cmd.getLine(editor, context);

        if (count >= 0)
        {
            MotionGroup.moveCaret(editor, context,
                CommandGroups.getInstance().getMotion().moveCaretToLineStartSkipLeading(editor, count));

            return true;
        }
        else
        {
            MotionGroup.moveCaret(editor, context, 0);
        }

        return false;
    }
}

package com.maddyhome.idea.vim.ex.handler;

/*
* IdeaVim - A Vim emulator plugin for IntelliJ Idea
* Copyright (C) 2003 Rick Maddy
*
* 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.editor.Editor;
import com.maddyhome.idea.vim.command.Command;
import com.maddyhome.idea.vim.ex.CommandHandler;
import com.maddyhome.idea.vim.ex.ExCommand;
import com.maddyhome.idea.vim.group.CommandGroups;
import com.maddyhome.idea.vim.group.MotionGroup;
import com.maddyhome.idea.vim.helper.EditorHelper;

/**
 * This handles Ex commands that just specify a range which translates to moving the cursor to the line given by the
 * range.
 */
public class GotoLineHandler extends CommandHandler
{
    /**
     * Create the handler
     */
    public GotoLineHandler()
    {
        super(RANGE_REQUIRED | ARGUMENT_OPTIONAL, Command.FLAG_MOT_EXCLUSIVE);
    }

    /**
     * Moves the cursor to the line entered by the user
     * @param editor The editor to perform the action in.
     * @param context The data context
     * @param cmd The complete Ex command including range, command, and arguments
     * @return True if able to perform the command, false if not
     */
    public boolean execute(Editor editor, DataContext context, ExCommand cmd)
    {
        int count = cmd.getLine(editor, context);

        int max = EditorHelper.getLineCount(editor);
        if (count >= max)
        {
            count = max - 1;
        }
        
        if (count >= 0)
        {
            MotionGroup.moveCaret(editor, context,
                CommandGroups.getInstance().getMotion().moveCaretToLineStartSkipLeading(editor, count));

            return true;
        }
        else
        {
            MotionGroup.moveCaret(editor, context, 0);
        }

        return false;
    }
}

Handle line greater than line count