diff options
Diffstat (limited to 'modules/custom-line-paragraph.el')
| -rw-r--r-- | modules/custom-line-paragraph.el | 61 |
1 files changed, 40 insertions, 21 deletions
diff --git a/modules/custom-line-paragraph.el b/modules/custom-line-paragraph.el index d29d4125..5d96fe41 100644 --- a/modules/custom-line-paragraph.el +++ b/modules/custom-line-paragraph.el @@ -46,7 +46,10 @@ (when (> (line-number-at-pos) 1) (join-line)) (end-of-line) - (newline))) + ;; Only add a newline at end of buffer. Doing it unconditionally left a + ;; stray blank line when joining a line in the middle of the buffer. + (when (eobp) + (newline)))) (defun cj/join-paragraph () "Join all lines in the current paragraph using `cj/join-line-or-region'." @@ -67,18 +70,27 @@ produce malformed output silently." (> (length comment-start) 0)))) (user-error "Cannot comment in %s: no comment syntax defined" major-mode)) - (let* ((b (if (region-active-p) (region-beginning) (line-beginning-position))) - (e (if (region-active-p) (region-end) (line-end-position))) - (lines (split-string (buffer-substring-no-properties b e) "\n"))) + ;; Normalize the bounds to whole lines: extend to the start of the first + ;; line and the end of the last line the region touches. The old open-line + ;; loop mishandled a region ending mid-line or at beginning-of-line, either + ;; splitting a line or duplicating a stray empty line. + (let* ((rb (if (region-active-p) (region-beginning) (point))) + (re (if (region-active-p) (region-end) (point))) + (beg (save-excursion (goto-char rb) (line-beginning-position))) + (end (save-excursion + (goto-char re) + ;; A region ending exactly at beginning-of-line does not + ;; include that line, so step back to the previous line's end. + (when (and (> re rb) (bolp)) + (backward-char)) + (line-end-position))) + (text (buffer-substring-no-properties beg end))) (save-excursion - (goto-char e) - (dolist (line lines) - (open-line 1) - (forward-line 1) - (insert line) - ;; If the COMMENT prefix argument is non-nil, comment the inserted text - (when comment - (comment-region (line-beginning-position) (line-end-position))))))) + (goto-char end) + (insert "\n" text) + ;; Comment the freshly-inserted copy when the COMMENT prefix arg is set. + (when comment + (comment-region (1+ end) (point)))))) (defun cj/remove-duplicate-lines-region-or-buffer () "Remove duplicate lines in the region or buffer, keeping the first occurrence. @@ -175,9 +187,9 @@ If not on a delimiter, show a message. Respects the current syntax table." (cb (char-before)) ;; Check if on opening paren (open-p (and ca (eq (char-syntax ca) ?\())) - ;; Check if on or just after closing paren - (close-p (or (and ca (eq (char-syntax ca) ?\))) - (and cb (eq (char-syntax cb) ?\)))))) + ;; On a closing paren (point sits on it) vs just after one. + (on-close-p (and ca (eq (char-syntax ca) ?\)))) + (after-close-p (and cb (eq (char-syntax cb) ?\))))) (cond ;; Jump forward from opening (open-p @@ -185,12 +197,19 @@ If not on a delimiter, show a message. Respects the current syntax table." (forward-sexp) (scan-error (message "No matching delimiter: %s" (error-message-string err))))) - ;; Jump backward from closing - (close-p - (condition-case err - (backward-sexp) - (scan-error - (message "No matching delimiter: %s" (error-message-string err))))) + ;; Jump backward from closing to its matching opener. When point is ON + ;; the closer, step past it first so `backward-sexp' spans the whole + ;; expression to the opener rather than the last inner sexp. Restore + ;; point if the delimiter is unmatched. + ((or on-close-p after-close-p) + (let ((start (point))) + (condition-case err + (progn + (when on-close-p (forward-char)) + (backward-sexp)) + (scan-error + (goto-char start) + (message "No matching delimiter: %s" (error-message-string err)))))) ;; Not on delimiter (t (message "Point is not on a delimiter."))))) |