Compare end of comint-last-output-overlay with the start of the newly
inserted text, not the end, when deciding whether to extend it.
Set saved-point's insertion type to advance after insertion.
use save-restriction, now that it works correctly. Don't adjust
comint-last-input-start to account for our insertion; it shouldn't have
moved because we don't use insert-before-markers anymore. Comment out
call to `force-mode-line-update'; why is it here?
Use `insert' instead of `insert-before-markers'.
(comint-output-filter): Use `insert' instead of `insert-before-markers'.
Extend comint-last-output-overlay when necessary since we can't rely on
insert-before-markers to do it.
(comint-last-prompt-overlay): New variables.
(comint-output-filter): Implement prompt highlighting.
(comint-snapshot-last-prompt): New function.
(comint-send-input): Snapshot the last prompt.
Use comint-highlight-input-face.
(comint-highlight-input-face): Renamed from `comint-highlight-face'.
Use defface instead of defcustom.
(send-invisible, comint-send-eof): Snapshot the last prompt.
(comint-delchar-or-maybe-eof): Use comint-send-eof.
(comint-mode): Make `comint-last-prompt-overlay' buffer-local.
(comint-prompt-regexp, comint-get-old-input): Document dependence on
comint-use-prompt-regexp-instead-of-fields.
(comint-send-input): Add `input' field property to stuff we send to
the process, if comint-use-prompt-regexp-instead-of-fields is nil.
(comint-output-filter): Add `output' field property to process
output, if comint-use-prompt-regexp-instead-of-fields is nil.
(comint-replace-by-expanded-history)
(comint-get-old-input-default, comint-show-output)
(comint-backward-matching-input, comint-forward-matching-input)
(comint-next-prompt, comint-previous-prompt): Use field
properties if comint-use-prompt-regexp-instead-of-fields is nil.
(comint-line-beginning-position): New function.
(comint-bol): Use comint-line-beginning-position. Make ARG optional.
(comint-replace-by-expanded-history-before-point): Use
comint-line-beginning-position and line-end-position.
(comint-last-output-overlay): New variable.
(comint-mode): Make `comint-last-output-overlay' buffer-local.
(comint-read-input-ring): Doc change; use
comint-input-ring-separator when reading file.
(comint-write-input-ring): Use comint-input-ring-separator when writing file.
comint-next-matching-input-from-input to C-c M-r, and
comint-previous-matching-input-from-input to C-c M-s.
Move comint-get-next-from-history to C-c C-x.
(comint-accumulate, comint-goto-process-mark): Likewise.
(comint-set-process-mark, comint-bol-or-process-mark): Likewise.
(comint-save-input-ring-index): New permanent local var.
(comint-accum-marker): Likewise.
(comint-send-input): Clear comint-input-ring-index
and comint-accum-marker.
(comint-previous-matching-input-from-input):
Use comint-accum-marker if set.
(comint-previous-matching-input): Likewise.
(comint-mode): Make those vars buffer-local and initialize.
(comint-mode-map): Make C-c C-a run comint-bol-or-process-mark.
Bind C-c SPC to comint-accumulate. Bind C-c C-q to
comint-get-next-from-history.
Don't display a message about doing history expansion.
(comint-replace-by-expanded-history-before-point): New arg START.
(comint-send-input): Pass START to comint-replace-by-expanded-history.
