vlib: cli support ctrl-w to erase left word
Type: fix
@@ -293,6 +293,7 @@ typedef enum
UNIX_CLI_PARSE_ACTION_WORDRIGHT, /**< Jump cursor to start of right word */
UNIX_CLI_PARSE_ACTION_ERASELINELEFT, /**< Erase line to left of cursor */
UNIX_CLI_PARSE_ACTION_ERASELINERIGHT, /**< Erase line to right & including cursor */
+ UNIX_CLI_PARSE_ACTION_ERASEWORDLEFT, /**< Erase word left */
UNIX_CLI_PARSE_ACTION_CLEAR, /**< Clear the terminal */
UNIX_CLI_PARSE_ACTION_REVSEARCH, /**< Search backwards in command history */
UNIX_CLI_PARSE_ACTION_FWDSEARCH, /**< Search forwards in command history */
@@ -359,6 +360,7 @@ static unix_cli_parse_actions_t unix_cli_parse_strings[] = {
_(CTL ('D'), UNIX_CLI_PARSE_ACTION_ERASERIGHT),
_(CTL ('U'), UNIX_CLI_PARSE_ACTION_ERASELINELEFT),
_(CTL ('K'), UNIX_CLI_PARSE_ACTION_ERASELINERIGHT),
+ _(CTL ('W'), UNIX_CLI_PARSE_ACTION_ERASEWORDLEFT),
_(CTL ('Y'), UNIX_CLI_PARSE_ACTION_YANK),
_(CTL ('L'), UNIX_CLI_PARSE_ACTION_CLEAR),
_(ESC "b", UNIX_CLI_PARSE_ACTION_WORDLEFT), /* Alt-B */
@@ -1616,6 +1618,51 @@ unix_cli_line_process_one (unix_cli_main_t * cm,
cf->search_mode = 0;
break;
+ case UNIX_CLI_PARSE_ACTION_ERASEWORDLEFT:
+ /* calculate num of caracter to be erased */
+ delta = 0;
+ while (cf->cursor > delta
+ && cf->current_command[cf->cursor - delta - 1] == ' ')
+ delta++;
+ while (cf->cursor > delta
+ && cf->current_command[cf->cursor - delta - 1] != ' ')
+ delta++;
+
+ if (vec_len (cf->current_command))
+ {
+ if (cf->cursor > 0)
+ {
+ /* move cursor left delta times */
+ for (j = delta; j > 0; j--, cf->cursor--)
+ unix_vlib_cli_output_cursor_left (cf, uf);
+ save = cf->current_command + cf->cursor;
+
+ /* redraw remainder of line */
+ memmove (cf->current_command + cf->cursor,
+ cf->current_command + cf->cursor + delta,
+ _vec_len (cf->current_command) - cf->cursor - delta);
+ unix_vlib_cli_output_cooked (cf, uf,
+ cf->current_command + cf->cursor,
+ _vec_len (cf->current_command) -
+ cf->cursor);
+ cf->cursor += _vec_len (cf->current_command) - cf->cursor;
+
+ /* print delta amount of blank spaces,
+ * then finally fix the cursor position */
+ for (j = delta; j > 0; j--, cf->cursor--)
+ unix_vlib_cli_output_cursor_left (cf, uf);
+ for (j = delta; j > 0; j--, cf->cursor++)
+ unix_vlib_cli_output_cooked (cf, uf, (u8 *) " ", 1);
+ for (; (cf->current_command + cf->cursor) > save; cf->cursor--)
+ unix_vlib_cli_output_cursor_left (cf, uf);
+ _vec_len (cf->current_command) -= delta;
+ }
+ }
+ cf->search_mode = 0;
+ cf->excursion = 0;
+ vec_reset_length (cf->search_key);
+ break;
+
case UNIX_CLI_PARSE_ACTION_LEFT:
if (cf->cursor > 0)
{
