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(validate-tex-buffer): Record mismatches in *Occur*.

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This commit is contained in:
Richard M. Stallman 1993-07-31 07:33:02 +00:00
parent 2943f983f2
commit bbd93e4129
1 changed files with 48 additions and 12 deletions
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60
lisp/textmodes/tex-mode.el
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@ -506,23 +506,59 @@ inserts \" characters."
(defun validate-tex-buffer ()
"Check current buffer for paragraphs containing mismatched $s.
As each such paragraph is found, a mark is pushed at its beginning,
and the location is displayed for a few seconds."
Their positions are recorded in the buffer `*Occur*'.
To find a particular invalidity from `*Occur*',
switch to to that buffer and type C-c C-c on the line
for the invalidity you want to see."
(interactive)
(let ((opoint (point)))
(goto-char (point-max))
;; Does not use save-excursion
;; because we do not want to save the mark.
(unwind-protect
(let ((buffer (current-buffer))
(prevpos (point-min))
(linenum nil))
(with-output-to-temp-buffer "*Occur*"
(princ "Mismatches:\n")
(save-excursion
(set-buffer standard-output)
(occur-mode)
(setq occur-buffer buffer)
(setq occur-nlines 0)
(setq occur-pos-list nil))
(save-excursion
(goto-char (point-max))
(while (and (not (input-pending-p)) (not (bobp)))
(let ((end (point)))
;; Scan the previous paragraph for invalidities.
(search-backward "\n\n" nil 'move)
(or (tex-validate-region (point) end)
(progn
(push-mark (point))
(message "Mismatch found in paragraph starting here")
(sit-for 4)))))
(goto-char opoint))))
(let* ((end (save-excursion (forward-line 1) (point)))
start tem)
(beginning-of-line)
(setq start (point))
;; Keep track of line number as we scan,
;; in a cumulative fashion.
(if linenum
(setq linenum (- linenum (count-lines prevpos (point))))
(setq linenum (1+ (count-lines 1 start))))
(setq prevpos (point))
;; Mention this mismatch in *Occur*.
;; Since we scan from end of buffer to beginning,
;; add each mismatch at the beginning of *Occur*
;; and at the beginning of occur-pos-list.
(save-excursion
(setq tem (point-marker))
(set-buffer standard-output)
(goto-char (point-min))
;; Skip "Mismatches:" header line.
(forward-line 1)
(setq occur-pos-list (cons tem occur-pos-list))
(insert-buffer-substring buffer start end)
(forward-char (- start end))
(insert (format "%3d: " linenum))))))))
(save-excursion
(set-buffer standard-output)
(if (null occur-pos-list)
(insert "None!\n"))
(if (interactive-p)
(message "%d mismatches found" (length occur-pos-list)))))))
(defun tex-validate-region (start end)
"Check for mismatched braces or $'s in region.