Lynx invokes a built-in Line Editor 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.
Note: setting emacs/vi keys ON has no direct effect on line-editor bindings.
This summarizes the Bash-like Binding keymap.
ENTER Input complete - Enter, RETURN TAB Completion / Next - TAB, Do (see note 2) 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 (see note 5) BOL Go to begin of line - C-a, Home, Find EOL Go to end of line - C-e, End, Select (see note 4) DELP Delete prev char - C-h, Backspace, Rubout DELN Delete next char - C-d, Delete, Remove (see note 1) DELPW Delete prev word - C-w, M-Backspace, M-Delete (?) (see note 3) DELNW Delete next word - M-d DELBL Delete to beg of line - C-u DELEL Delete to end of line - C-k (see note 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) Special commands for use in textarea fields [FORM]: PASS! Textarea external edit - C-e C-e, C-x e (see note 4) PASS! Insert file in textarea - C-x i PASS! Grow textarea - C-x g
Here is a little textarea for practice:
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 (see note 3) YANK Insert text last killed (with KILLREG) - C-y
C-key means Control+key.
C-x key means first Control+x, then key. M-key means Meta+key, where Meta is a modifier that can be entered in a variety of ways:
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 Key Map Page accessible with the key K for current information).
Here are some additional details on other keys, for the curious (very much subject to change)
Normal key action when used in form fields, subject to remapping with KEYMAP: [FORM (except Up-Arrow, Down-Arrow)] C-l (see note 3) C-o, C-z , C-\ , C-]  (see note 5) C-n [emacskey], C-p [emacskey] Up-Arrow, Down-Arrow (see note 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 (see note 3) M-C-o [!], M-C-z , M-C-\ , M-C-]  (see note 5) M-C-u, M-/, M-n M-Up-Arrow [!], M-Down-Arrow [!] (see note 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-< HOME M-Home M-> 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 , M-C-t, M-C-v, M-ESC (see note 5) M-C-@, M-C-_, M-Remove, M-Insert [!] Meta + other (mostly, printable character) keys: Modifier ignored, or sequence swallowed (see note 5). M-@, M-E...M-Z, 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-<key> will act like <key>.