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489 lines
16 KiB
489 lines
16 KiB
<chapter id="kate-part">
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<title>Working with the &kate; editor</title>
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<sect1 id="kate-part-overview">
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<title>Overview</title>
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<para>The &kate; editor is the editing area of the &kate; window. This
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editor is also used by &kwrite;, and it can be used in &konqueror; for
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displaying text files from your local computer, or from the
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network.</para>
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<para>The editor is composed of the following components:</para>
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<variablelist>
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<varlistentry>
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<term>The editing area</term>
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<listitem><para>This is where the text of your document is located.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>The Scroll bars</term>
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<listitem>
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<para>The scroll bars indicate the position of the visible part of
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the document text, and can be used to move around the
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document. Dragging the scrollbars will not cause the insertion cursor
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to be moved.</para>
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<para>The scroll bars are displayed and hidden as required.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>The Icon Border</term>
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<listitem>
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<para>The icon border is a small pane on the left side of the editor,
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displaying a small icon next to marked lines.</para>
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<para>You can set or remove a <link
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linkend="kate-part-bookmarks">bookmark</link> in a visible line by
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clicking the &LMB; in the icon border next to that line.</para>
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<para>The display of the icon border can be toggled using the
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<menuchoice><guimenu>View</guimenu> <guimenuitem>Show Icon
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Border</guimenuitem></menuchoice> menu item.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>The Line Numbers Pane</term>
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<listitem>
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<para>The Line numbers pane shows the line numbers of all visible
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lines in the document.</para>
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<para>The display of the Line Numbers Pane can be toggled using the
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<menuchoice><guimenu>View</guimenu> <guimenuitem>Show Line
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Numbers</guimenuitem></menuchoice> menu item.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<itemizedlist>
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<title>Also in this Chapter:</title>
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<listitem><para><link linkend="kate-part-navigation">Navigating in the
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Text</link> </para></listitem>
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<listitem><para><link linkend="kate-part-selection">Working with the
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Selection</link></para></listitem>
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<listitem><para><link linkend="kate-part-copy-and-paste">Copying and
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Pasting Text</link></para></listitem>
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<listitem><para><link linkend="kate-part-find-replace">Finding and
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Replacing Text</link></para></listitem>
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<listitem><para><link linkend="kate-part-bookmarks">Using
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Bookmarks</link></para></listitem>
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<listitem><para><link linkend="kate-part-auto-wrap">Automatically
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Wrapping Text</link></para></listitem>
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</itemizedlist>
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</sect1>
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<sect1 id="kate-part-navigation">
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<title>Navigating in the Text</title>
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<para>This section is not yet documented.</para>
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</sect1>
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<sect1 id="kate-part-selection">
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<title>Working with the Selection</title>
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<para>There are two basic ways of selecting text in &kate;: using the
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mouse, and using the keyboard.</para>
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<para>To select using the mouse, hold down the &LMB; while dragging
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the mouse cursor from where the selection should start, to the desired
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end point. The text gets selected as you drag.</para>
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<para>Double-clicking a word will select that word.</para>
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<para>Triple-clicking in a line will select the entire line.</para>
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<para>If &Shift; is held down while clicking, text will be
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selected:</para>
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<itemizedlist>
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<listitem><para>If nothing is already selected, from the text cursor
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position to the mouse cursor position.</para></listitem>
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<listitem><para>If there is a selection, from and including that
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selection to the mouse cursor position</para></listitem>
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</itemizedlist>
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<note>
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<para>When selecting text by dragging the mouse, the
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selected text is copied to the clipboard, and can be pasted by
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clicking the middle mouse button in the editor, or in any other
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application to which you want to paste the text.
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</para>
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</note>
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<para>To select using the keyboard, hold down the &Shift; key while
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using the navigation keys (The Arrow keys, <keycap>Page Up</keycap>,
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<keycap>Page Down</keycap>, <keycap>Home</keycap> and
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<keycap>End</keycap>, possibly in combination with &Ctrl; to extend
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the move of the text cursor).</para>
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<para>See also the section <link
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linkend="kate-part-navigation">Navigating in the Text</link> in this
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Chapter.</para>
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<para>To <action>Copy</action> the current selection, use the
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<menuchoice><guimenu>Edit</guimenu>
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<guimenuitem>Copy</guimenuitem></menuchoice> menu item or the keyboard
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shortcut (defaults to <keycombo
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action="simul">&Ctrl;<keycap>C</keycap></keycombo>).</para>
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<para>To <action>Deselect</action> the current selection, use the
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<menuchoice><guimenu>Edit</guimenu>
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<guimenuitem>Deselect</guimenuitem></menuchoice> menu item, or the
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keyboard shortcut (default is <keycombo
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action="simul">&Ctrl;&Shift;<keycap>A</keycap></keycombo>), or click
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with the &LMB; in the editor.</para>
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<sect2 id="kate-part-selection-block">
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<title>Using Block Selection</title>
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<para>When Block Selection is enabled, you can make <quote>vertical
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selections</quote> in the text, meaning selecting limited columns from
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multiple lines. This is handy for working with tab separated lines for
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example.</para>
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<para>Block Selection can be toggled using the
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<menuchoice><guimenu>Edit</guimenu> <guimenuitem>Toggle Block
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Selection</guimenuitem></menuchoice> menu item. The default keyboard
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shortcut is <keycap>F4</keycap></para>
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</sect2>
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<sect2 id="kate-part-seleciton-overwrite">
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<title>Using Overwrite Selection</title>
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<para>If Overwrite Selection is enabled, typing or pasting text into
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the selection will cause the selected text to be replaced. If not
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enabled, new text will be added at the position of the text
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cursor.</para>
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<para>Overwrite Selection is enabled by default.</para>
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<para>To change the setting for this option, use the <link
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linkend="config-dialog-editor-select">Select Page</link> of the <link
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linkend="config-dialog">Configuration Dialog</link>.</para>
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</sect2>
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<sect2 id="kate-part-selection-persistent">
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<title>Using Persistent Selection</title>
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<para>When Persistent selection is enabled, typing characters or
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moving the cursor will not cause the Selection to become
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deselected. This means that you can move the cursor away from the
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selection and type text.</para>
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<para>Persistent Selection is disabled by default.</para>
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<para>Persistent Selection can be enabled in the <link
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linkend="config-dialog-editor-select">Select Page</link> of the <link
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linkend="config-dialog">Configuration Dialog</link>.</para>
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<warning>
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<para>If Persistent Selection and Overwrite Selection are both
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enabled, typing or pasting text when the text cursor is inside the
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selection will cause it to be replaced and deselected.</para>
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</warning>
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</sect2>
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</sect1>
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<sect1 id="kate-part-copy-and-paste">
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<title>Copying and Pasting Text</title>
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<para>To copy text, select it and use the
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<menuchoice><guimenu>Edit</guimenu>
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<guimenuitem>Copy</guimenuitem></menuchoice> menu item. Additionally,
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selecting text with the mouse will cause selected text to be copied to
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the clipboard.</para>
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<para>To paste the text currently in the clipboard, use the
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<menuchoice>
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<guimenu>Edit</guimenu><guimenuitem>Paste</guimenuitem></menuchoice>
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menu item.</para>
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<para>Additionally, text selected with the mouse may be pasted by
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clicking the <mousebutton>middle</mousebutton> mouse button at the
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desired position.</para>
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<tip>
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<para>If you are using the &kde; desktop, you can retrieve earlier
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copied text from any application using the &klipper; icon in the
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&kicker; icon tray.</para>
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</tip>
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</sect1>
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<sect1 id="kate-part-find-replace">
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<title>Finding and Replacing Text</title>
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<sect2 id="find-replace-dialog">
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<title>The <guilabel>Find Text</guilabel> and <guilabel>Replace
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Text</guilabel> Dialogs</title>
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<para>The Find and Replace Text dialogs in &kate; are very much the
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same, except the Replace Text dialog offers the means of entering a
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replacement string along with a few extra options.</para>
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<para>The dialogs offer the following common options:</para>
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<variablelist>
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<varlistentry>
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<term><guilabel>Text to Find</guilabel></term>
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<listitem><para>This is where to enter the search string. The interpretation of the string
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depends on some of the options described below.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Regular Expression</guilabel></term>
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<listitem>
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<para>If checked, the search string is interpreted as a regular
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expression. A button for using a graphical tool to create or edit the
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expression will be enabled.</para>
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<para>See <link linkend="regular-expressions">Regular
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Expressions</link> for more on these.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Case Insensitive</guilabel></term>
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<listitem>
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<para>If enabled, the search will be case insensitive.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Whole Words Only</guilabel></term>
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<listitem>
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<para>If checked, the search will only match if there is a word
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boundary at both ends of the string matching, meaning not an
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alphanumeric character - either some other visible character or a line
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end.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>From Beginning</guilabel></term>
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<listitem>
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<para>If checked, the search will start at the beginning of the first
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line in the document, otherwise it will start at cursor position.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Find Backwards</guilabel></term>
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<listitem>
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<para>If checked, the search will look for the first match above the
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starting point, either cursor position or the beginning of the
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document, if the <guilabel>From Beginning</guilabel> option is
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enabled.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>The <guilabel>Replace Text</guilabel> Dialog offers some
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additional options:</para>
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<variablelist>
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<varlistentry>
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<term><guilabel>Replace With</guilabel></term>
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<listitem><para>This is where to enter the replacement
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string.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Selected Text</guilabel></term>
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<listitem>
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<para>This option is disabled if no text is selected, or if the
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<guilabel>Prompt on Replace</guilabel>
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option is enabled. If checked, all matches of the search string within
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the selected text will be replaced with the replace string.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Prompt on Replace</guilabel></term>
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<listitem><para>If checked, a small dialog will prompt you for what to
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do for each time a match is found. It offers the following options:
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<variablelist>
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<varlistentry>
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<term><guibutton>Yes</guibutton></term>
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<listitem><para>Activate this to replace the current match (which is
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selected in the editor).</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><guibutton>No</guibutton></term>
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<listitem><para>Activate to skip the current match, and try to find another one.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><guibutton>All</guibutton></term>
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<listitem><para>Activate to cancel prompting, and just replace all
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matches.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><guibutton>Close</guibutton></term>
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<listitem><para>Activate this skip the current match and end the
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searching.</para></listitem>
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</varlistentry>
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</variablelist>
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</para></listitem>
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</varlistentry>
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</variablelist>
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<note>
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<para>There is currently no way to use minimal matching when searching
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for a regular expression. This will be added in a future version of
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&kate;</para>
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</note>
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</sect2>
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<sect2 id="finding-text">
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<title>Finding Text</title>
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<para>To find text, launch the <guilabel>Find Text</guilabel> Dialog
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with <keycombo action="simul">&Ctrl;<keycap>F</keycap></keycombo>or
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from the <menuchoice><guimenu>Edit</guimenu>
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<guimenuitem>Find...</guimenuitem></menuchoice> menu item,enter a
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search string, set the <link
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linkend="find-replace-dialog">options</link> as desired and hit
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<guibutton>Ok</guibutton>. If no matches is found between the starting
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point for the search (either the text cursor position or the beginning
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of the document) you will be prompted for permission to continue from
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the start (or end, if you are searching backwards) of the
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document.</para>
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<para>If a match is found it is selected and the <guilabel>Find
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Text</guilabel> Dialog is hidden, but stay tuned, finding further
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matches is very easy:</para>
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<para>To find the next match in the search direction, use the
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<menuchoice><guimenu>Edit</guimenu> <guimenuitem>Find
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Next</guimenuitem></menuchoice> command or press
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<keycap>F3</keycap>.</para>
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<para>To find the next match in the opposite direction, use the
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<menuchoice><guimenu>Edit</guimenu> <guimenuitem>Find
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Previous</guimenuitem></menuchoice> command or press <keycombo
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action="simul">&Shift;<keycap>F3</keycap></keycombo>.</para>
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<para>If no match is found before reaching the document border, you
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will be prompted for permission to cross that.</para>
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</sect2>
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<sect2>
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<title>Replacing Text</title>
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<para>To replace text, launch the <guilabel>Replace text</guilabel>
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Dialog using the <menuchoice><guimenu>Edit</guimenu>
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<guimenuitem>Replace</guimenuitem></menuchoice> command, or the
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<keycombo action="simul">&Ctrl;<keycap>R</keycap></keycombo> shortcut,
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enter a search string and optionally a replace string (if the replace
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string is empty, each match will be replaced with ""), set
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the <link linkend="find-replace-dialog">options</link> as desired and
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hit the <guibutton>Ok</guibutton> button.</para>
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<tip>
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<para>If you are using a regular expression to find the text to replace, you can
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employ backrefences to reuse text captured in parenthesized subpatterns of the expression.</para>
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<para>See <xref linkend="regular-expressions"/><!-- xref to reg-exp appendix --> for more
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on those.</para>
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</tip>
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</sect2>
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</sect1>
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<sect1 id="kate-part-bookmarks">
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<title>Using Bookmarks</title>
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<para>The bookmarks feature allows you to mark certain lines, to be
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able to easily find them again.</para>
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<para>You can set or remove a bookmark in a line in two ways:</para>
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<itemizedlist>
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<listitem>
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<para>Moving the insertion cursor to that line, and activate the
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<menuchoice><guimenu>Bookmarks</guimenu><guimenuitem>Toggle
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Bookmark</guimenuitem></menuchoice> (<keycombo
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action="simul">&Ctrl;<keycap>B</keycap></keycombo>) command.</para>
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</listitem>
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<listitem>
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<para>Clicking in the Icon Border next to that line.</para>
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</listitem>
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</itemizedlist>
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<para>Bookmarks are available in the <guimenu>Bookmarks</guimenu>
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menu. The individual bookmarks are available as menu items, labeled
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with the line number of the line with the bookmark, and the first few
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characters of the text in the line. To move the insertion cursor to
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the beginning of a bookmarked line, open the menu and select the
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bookmark.</para>
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<tip>
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<para>If the <link linkend="config-dialog-general-reopen-files">Reopen
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Files</link> option in the <link linkend="config-dialog">Config
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Dialog</link> is enabled (or if &kate; was started by the session
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manager), your bookmarks will be restored when the document is
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reopened.</para>
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</tip>
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</sect1>
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<sect1 id="kate-part-auto-wrap">
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<title>Automatically Wrapping text</title>
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<para>This feature allows you to have the text formatted in a very simple way: the text will be wrapped,
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so that no lines exceed a maximum number of characters per line, unless there is a longer string of
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non-whitespace characters.</para>
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<para>To enable/disable it, check/uncheck the <guibutton>Word Wrap</guibutton> checkbox in the
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<link linkend="config-dialog-editor-edit">edit page</link> of the <link linkend="config-dialog">configuration dialog</link>.</para>
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<para>To set the maximum line width (maximum characters per line), use the
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<link linkend="config-dialog-editor-edit-wrap-words-at"><guibutton>Wrap Words At</guibutton></link>
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option in the <link linkend="config-dialog-editor-edit">edit page</link> of the <link linkend="config-dialog">configuration
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dialog</link>.</para>
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<para>If enabled,
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it has the following effects:
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<itemizedlist>
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<listitem><para>While typing, the editor will automatically insert a hard line break after
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the last whitespace character at a position before the maximum line width is reached.</para></listitem>
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<listitem><para>While loading a document, the editor will wrap the text in a similar way, so that
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no lines are longer than the maximum line width, if they contain any whitespace allowing that.</para></listitem>
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</itemizedlist>
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</para>
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<note><para>There is currently no way to set word wrap for document types, or even to enable or disable
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the feature on document level. This will be fixed in a future version of &kate;</para></note>
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</sect1>
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</chapter>
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