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Code Editor : bashlike_edit_help.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">

<title>Lynx Line Editor Bash-Like Key Binding</title>
  <link rev="made" href="mailto:lynx-dev@nongnu.org">
  <link rel="Sibling" title="Default Binding" href=
  "edit_help.html">
  <link rel="Sibling" title="Alternative Binding" href=
  "alt_edit_help.html">
  <meta http-equiv="Content-Type" content=
  "text/html; charset=us-ascii">
</head>

<body>
  <h1>BASH-LIKE BINDING</h1>

<p>Lynx invokes a built-in <em>Line Editor</em> for entering
  strings in response to prompts, in forms, and for email messages
  if an external editor has not been defined. Several sets of
  key-bindings can be offered by configuring with
  --enable-alt-bindings or by adding them in LYEditmap.c before
  compiling Lynx. If available, they may be selected via the
  'o'ptions menu, or by editing lineedit_mode in the '.lynxrc'
  file.</p>

<p>Note: setting emacs/vi keys ON has no direct effect on
  line-editor bindings.</p>

<p>This is the <em>Bash-like Binding</em> keymap.</p>

<h2>Basic commands</h2>
  <pre>
     ENTER  Input complete        -  Enter, RETURN
     TAB    Completion [2]/ Next  -  TAB, Do
     ABORT  Cancel / Undo Change  -  C-g, C-_
     ERASE  Erase the line        -  M-k, C-x k

BACK   Cursor back     char  -  Left-Arrow,  C-b
     FORW   Cursor forward  char  -  Right-Arrow, C-f
     BACKW  Cursor back     word  -  M-b, C-r
     FORWW  Cursor forward  word  -  M-f, C-s [5]
     BOL    Go to begin of  line  -  C-a, Home, Find
     EOL    Go to end   of  line  -  C-e [4], End,  Select

DELP   Delete prev     char  -  C-h, Backspace, Rubout
     DELN   Delete next [1] char  -  C-d, Delete, Remove
     DELPW  Delete prev     word  -  C-w [3], M-Backspace, M-Delete (?)
     DELNW  Delete next     word  -  M-d
     DELBL  Delete to beg of line -  C-u
     DELEL  Delete to end of line -  C-k [4]

UPPER  Upper case the line   -  M-u
     LOWER  Lower case the line   -  M-l

LKCMD  Invoke cmd prompt     -  C-v [FORM]
     SWMAP  Switch input keymap   -  C-^ (if compiled in)

<a name=
"TASpecial">Special commands for use in textarea fields</a> [FORM]:

PASS!  Textarea external edit  - C-e C-e [4], C-x e
     PASS!  Insert file in textarea - C-x i
     PASS!  Grow textarea           - C-x g
</pre>

<p>Here is a little textarea for practice:<br></p>

<form action="">
    <textarea name="practice" cols="40" rows="5">
This text cannot be submitted.  Normally lines like
these would be part of a form that is filled out and
then submitted.  You can move around here and delete
or add text as you like, using the Line-Editor keys.
</textarea><input type="reset" value="[reset content]">
  </form>
  <pre>

Advanced emacs-like commands:

TPOS    Transpose characters                   -  C-t
    SETMARK Set mark at current position in line   -  C-@
    XPMARK  Exchange current position with mark    -  C-x C-x
    KILLREG Kill region between mark and position  -  C-x C-w [3]
    YANK    Insert text last killed (with KILLREG) -  C-y
</pre>

<h2>Notes</h2>

<p><samp><dfn>C-</dfn><strong>key</strong> means
  Control+<strong><kbd>key</kbd></strong>.
  <dfn><code>C-x</code></dfn> <strong>key</strong> means first
  Control+<kbd>x</kbd>, then <strong><kbd>key</kbd></strong>.
  <dfn>M-</dfn>key means Meta+<strong><kbd>key</kbd></strong>,
  where Meta is a modifier that can be entered in a variety of
  ways:</samp></p>

<ul>
    <li>First ESC, then the <strong><kbd>key</kbd></strong>. This
    doesn't work with all systems or on all connections, and if it
    does may not work for some keys (because the ESC character is
    also part of code sequences for "normal" function keys).</li>

<li>Alt+<strong><kbd>key</kbd></strong>. This works if the
    terminal, console, or comm program is set up to interpret Alt
    as a modifier to send ESC. The Linux console acts like that by
    default for most keys; Kermit can be set up to do it, xterm can
    be for some keys, and so on. But the same caveats as for the
    previous item apply. This Alt mapping may also be possible,
    independent of the ESC character, for some keys in Lynx for
    DOS/i386 or for Win32.</li>

<li>C-x <strong><kbd>key</kbd></strong>. Actually, currently
    the same internal table is used for Meta and the C-x prefix.
    Therefore all M-<strong><kbd>key</kbd></strong> combinations
    can also be typed as C-x <strong><kbd>key</kbd></strong>, and
    vice versa.</li>
  </ul>
  <pre>
[1] "next" means the character "under" a box or underline style cursor; it
    means "to the immediate right of" an I-beam (between characters) type
    cursor.
[2] For entering strings in response to prompts (that is, when not editing
    form text fields), some keys have different actions: TAB tries to
    complete input based on previous response; Up-Arrow and Down-Arrow
    may offer previous response and next response, respectively, from
    recall buffer for some prompts.
[3] C-w can only be used for editing functions if its default KEYMAP
    to REFRESH is changed.  This can be done in the lynx.cfg file,
    for example with the line "KEYMAP:^W:DO_NOTHING".  This also applies
    for other keys: as long as the key's action is mapped to REFRESH,
    either with an explicit KEYMAP in lynx.cfg or by default, the
    key's Line Editor binding is disabled.
[4] These keys invoke special behavior when pressed twice in a row:
    C-e C-e calls the external editor for changing the text in a
    textarea (if available).  C-k C-k will move to the next link,
    so that all lines in a textarea can be conveniently cleared by
    repeating C-k.
[5] Key is likely unavailable for Lynx, because it is interpreted by
    operating system, comm program, or curses library, or swallowed
    as part of escape sequence recognition.  Binding is provided for
    the benefit of those where this doesn't apply.
[FORM] In form text fields, only.  Ignored by Line Editor elsewhere.

More notes

When a text input field, including a textarea line, is selected,
   the Line Editor functions get a first grab at the keys entered.
   If a key has no function defined in the Line Editor binding, it
   can either be ignored, or passed on for normal key command handling,
   where modifiers like C-x or Meta currently have no effect (see the
   <a href=
"LYNXKEYMAP:">Key Map Page</a> accessible with the key <kbd>K</kbd> for current information).
</pre>

<h2>Additional details on other keys, for the curious (very much
  subject to change)</h2>
  <pre>
Normal key action when used in form fields, subject to remapping
with KEYMAP: [FORM (except Up-Arrow, Down-Arrow)]
            C-l [3], C-o, C-z [5], C-\ [5], C-] [5]
            C-n [emacskey], C-p [emacskey]
            Up-Arrow [2], Down-Arrow [2]
            Page-Up, Page-Down, F1, Back-Tab

Normal key command with Meta modifier ignored when used in form fields,
subject to remapping with KEYMAP: [FORM (except Up-Arrow, Down-Arrow)]
            M-C-l [3], M-C-o [!], M-C-z [5], M-C-\ [5], M-C-] [5]
            M-C-u, M-/, M-n
            M-Up-Arrow [2][!], M-Down-Arrow [2][!]
            M-Page-Up [!], M-Page-Down [!], M-Home, M-End

Passed as specific command:
                     lynx action    duplicates by default
                     -----------    ---------------------
            M-C-d    NEXT_LINK      Down-Arrow
            M-C-e    EDITTEXTAREA   C-e C-e
            M-C-k    LPOS_NEXT_LINK (none, Down-Arrow suggested)
            M-e      EDITTEXTAREA   C-e C-e
            M-g      GROWTEXTAREA   (none, C-v $ suggested?)
            M-i      INSERTFILE     (none, C-v # suggested?)
            M-&lt;      HOME           M-Home
            M-&gt;      END            M-End
            M-F1     DWIMHELP       F1
            M-Find   WHEREIS        C-v /
            M-Select NEXT           C-v n

Duplicates function of other key(s):
                     edit action    duplicates
                     -----------    ----------
            M-C-b    BACKW          M-b, C-r
            M-C-f    FORWW          M-f
            M-C-n    FORWW          M-f
            M-C-p    BACKW          M-b, C-r
            M-C-r    BACKW          M-b, C-r
            M-a      BOL            C-a, Home, ...

Modifier ignored, and duplicates function of other key(s):
                     edit action    duplicates
                     -----------    ----------
            M-C-a    BOL            C-a, Home, ...
            M-C-g    ABORT          C-g, ...
            M-TAB    TAB            C-i [!]
            M-C-j    ENTER          C-m, C-j, Enter / RETURN
            M-RETURN ENTER          C-m, C-j, Enter / RETURN
            M-C-y    YANK           C-y [!]
            M-C-^    SWMAP          C-^ [!] (if compiled in)
       M-Right-Arrow FORW           Right-Arrow [!], C-f
        M-Left-Arrow BACK           Left-Arrow [!],  C-b
            M-Do     TAB            C-i [!]

Key completely ignored:
            C-q, Insert
            M-C-q, M-C-s [5], M-C-t, M-C-v, M-ESC
            M-C-@, M-C-_, M-Remove, M-Insert [!]

Meta + other (mostly, printable character) keys:
              Modifier ignored, or sequence swallowed (see [5]).
            M-@, M-E...M-Z [5], M-\, M-^, M-_ attempt to interpret
              as 7-bit escape representation for character in 8-bit
              control (C1) range if appropriate according to
              Display Character Set.

[emacskey] Normal key action subject to emacs_keys setting.

[!] Action of key with Meta modifier follows action of key without
    Meta.  If you manage to enter the Meta key while Line-Editor
    Binding is not set to Bash-Like, and the unmodified binding
    is different from that listed here, M-&lt;<var>key</var>&gt; will act
    like &lt;<var>key</var>&gt;.
</pre>
</body>
</html>

${this.title}

Code Editor : bashlike_edit_help.html