mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-24 07:20:37 +00:00
1038 lines
36 KiB
EmacsLisp
1038 lines
36 KiB
EmacsLisp
;;; reftex-parse.el --- parser functions for RefTeX
|
|
;; Copyright (c) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
|
|
|
|
;; Author: Carsten Dominik <dominik@science.uva.nl>
|
|
;; Version: 4.17
|
|
;;
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is free software; you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation; either version 2, or (at your option)
|
|
;; any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs; see the file COPYING. If not, write to the
|
|
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
;; Boston, MA 02111-1307, USA.
|
|
|
|
;;; Commentary:
|
|
|
|
;;; Code:
|
|
|
|
(eval-when-compile (require 'cl))
|
|
(provide 'reftex-parse)
|
|
(require 'reftex)
|
|
|
|
(defmacro reftex-with-special-syntax (&rest body)
|
|
`(let ((saved-syntax (syntax-table)))
|
|
(unwind-protect
|
|
(progn
|
|
(set-syntax-table reftex-syntax-table)
|
|
(let ((case-fold-search nil))
|
|
,@body))
|
|
(set-syntax-table saved-syntax))))
|
|
|
|
(defun reftex-parse-one ()
|
|
"Re-parse this file."
|
|
(interactive)
|
|
(let ((reftex-enable-partial-scans t))
|
|
(reftex-access-scan-info '(4))))
|
|
|
|
(defun reftex-parse-all ()
|
|
"Re-parse entire document."
|
|
(interactive)
|
|
(reftex-access-scan-info '(16)))
|
|
|
|
(defun reftex-do-parse (rescan &optional file)
|
|
"Do a document rescan. When allowed, do only a partial scan from FILE."
|
|
|
|
;; Normalize the rescan argument
|
|
(setq rescan (cond ((eq rescan t) t)
|
|
((eq rescan 1) 1)
|
|
((equal rescan '(4)) t)
|
|
((equal rescan '(16)) 1)
|
|
(t 1)))
|
|
|
|
;; Partial scans only when allowed
|
|
(unless reftex-enable-partial-scans
|
|
(setq rescan 1))
|
|
|
|
;; Do the scanning.
|
|
|
|
(let* ((old-list (symbol-value reftex-docstruct-symbol))
|
|
(master (reftex-TeX-master-file))
|
|
(true-master (file-truename master))
|
|
(master-dir (file-name-as-directory (file-name-directory master)))
|
|
(file (or file (buffer-file-name)))
|
|
(true-file (file-truename file))
|
|
(bibview-cache (assq 'bibview-cache old-list))
|
|
(index-tags (cdr (assq 'index-tags old-list)))
|
|
from-file appendix docstruct tmp)
|
|
|
|
;; Make sure replacement is really an option here
|
|
(when (and (eq rescan t)
|
|
(not (and (member (list 'bof file) old-list)
|
|
(member (list 'eof file) old-list))))
|
|
;; Scan whole document because no such file section exists
|
|
(setq rescan 1))
|
|
(when (string= true-file true-master)
|
|
;; Scan whole document because this file is the master
|
|
(setq rescan 1))
|
|
|
|
;; From which file do we start?
|
|
(setq from-file
|
|
(cond ((eq rescan t) (or file master))
|
|
((eq rescan 1) master)
|
|
(t (error "This should not happen (reftex-do-parse)"))))
|
|
|
|
;; Reset index-tags if we scan everything
|
|
(if (equal rescan 1) (setq index-tags nil))
|
|
|
|
;; Find active toc entry and initialize section-numbers
|
|
(setq reftex-active-toc (reftex-last-assoc-before-elt
|
|
'toc (list 'bof from-file) old-list)
|
|
appendix (reftex-last-assoc-before-elt
|
|
'appendix (list 'bof from-file) old-list))
|
|
|
|
(reftex-init-section-numbers reftex-active-toc appendix)
|
|
|
|
(if (eq rescan 1)
|
|
(message "Scanning entire document...")
|
|
(message "Scanning document from %s..." from-file))
|
|
|
|
(reftex-with-special-syntax
|
|
(save-window-excursion
|
|
(save-excursion
|
|
(unwind-protect
|
|
(setq docstruct
|
|
(reftex-parse-from-file
|
|
from-file docstruct master-dir))
|
|
(reftex-kill-temporary-buffers)))))
|
|
|
|
(message "Scanning document... done")
|
|
|
|
;; Turn the list around.
|
|
(setq docstruct (nreverse docstruct))
|
|
|
|
;; Set or insert
|
|
(setq docstruct (reftex-replace-label-list-segment
|
|
old-list docstruct (eq rescan 1)))
|
|
|
|
;; Add all missing information
|
|
(unless (assq 'label-numbers docstruct)
|
|
(push (cons 'label-numbers nil) docstruct))
|
|
(unless (assq 'master-dir docstruct)
|
|
(push (cons 'master-dir master-dir) docstruct))
|
|
(unless (assq 'bibview-cache docstruct)
|
|
(push (cons 'bibview-cache (cdr bibview-cache)) docstruct))
|
|
(let* ((bof1 (memq (assq 'bof docstruct) docstruct))
|
|
(bof2 (assq 'bof (cdr bof1)))
|
|
(is-multi (not (not (and bof1 bof2))))
|
|
(entry (or (assq 'is-multi docstruct)
|
|
(car (push (list 'is-multi is-multi) docstruct)))))
|
|
(setcdr entry (cons is-multi nil)))
|
|
(and index-tags (setq index-tags (sort index-tags 'string<)))
|
|
(let ((index-tag-cell (assq 'index-tags docstruct)))
|
|
(if index-tag-cell
|
|
(setcdr index-tag-cell index-tags)
|
|
(push (cons 'index-tags index-tags) docstruct)))
|
|
(unless (assq 'xr docstruct)
|
|
(let* ((allxr (reftex-all-assq 'xr-doc docstruct))
|
|
(alist (mapcar
|
|
(lambda (x)
|
|
(if (setq tmp (reftex-locate-file (nth 2 x) "tex"
|
|
master-dir))
|
|
(cons (nth 1 x) tmp)
|
|
(message "Can't find external document %s"
|
|
(nth 2 x))
|
|
nil))
|
|
allxr))
|
|
(alist (delq nil alist))
|
|
(allprefix (delq nil (mapcar 'car alist)))
|
|
(regexp (if allprefix
|
|
(concat "\\`\\("
|
|
(mapconcat 'identity allprefix "\\|")
|
|
"\\)")
|
|
"\\\\\\\\\\\\"))) ; this will never match
|
|
(push (list 'xr alist regexp) docstruct)))
|
|
|
|
(set reftex-docstruct-symbol docstruct)
|
|
(put reftex-docstruct-symbol 'modified t)))
|
|
|
|
(defun reftex-everything-regexp ()
|
|
(if reftex-support-index
|
|
reftex-everything-regexp
|
|
reftex-everything-regexp-no-index))
|
|
|
|
(defun reftex-all-document-files (&optional relative)
|
|
"Return a list of all files belonging to the current document.
|
|
When RELATIVE is non-nil, give file names relative to directory
|
|
of master file."
|
|
(let* ((all (symbol-value reftex-docstruct-symbol))
|
|
(master-dir (file-name-directory (reftex-TeX-master-file)))
|
|
(re (concat "\\`" (regexp-quote master-dir)))
|
|
file-list tmp file)
|
|
(while (setq tmp (assoc 'bof all))
|
|
(setq file (nth 1 tmp)
|
|
all (cdr (memq tmp all)))
|
|
(and relative
|
|
(string-match re file)
|
|
(setq file (substring file (match-end 0))))
|
|
(push file file-list))
|
|
(nreverse file-list)))
|
|
|
|
(defun reftex-parse-from-file (file docstruct master-dir)
|
|
;; Scan the buffer for labels and save them in a list.
|
|
(let ((regexp (reftex-everything-regexp))
|
|
(bound 0)
|
|
file-found tmp include-file
|
|
(level 1)
|
|
(highest-level 100)
|
|
toc-entry index-entry next-buf buf)
|
|
|
|
(catch 'exit
|
|
(debug)
|
|
(setq file-found (reftex-locate-file file "tex" master-dir))
|
|
(if (and (not file-found)
|
|
(setq buf (reftex-get-buffer-visiting file)))
|
|
(setq file-found (buffer-file-name buf)))
|
|
|
|
(unless file-found
|
|
(push (list 'file-error file) docstruct)
|
|
(throw 'exit nil))
|
|
|
|
(save-excursion
|
|
|
|
(message "Scanning file %s" file)
|
|
(set-buffer
|
|
(setq next-buf
|
|
(reftex-get-file-buffer-force
|
|
file-found
|
|
(not (eq t reftex-keep-temporary-buffers)))))
|
|
|
|
;; Begin of file mark
|
|
(setq file (buffer-file-name))
|
|
(push (list 'bof file) docstruct)
|
|
|
|
(reftex-with-special-syntax
|
|
(save-excursion
|
|
(save-restriction
|
|
(widen)
|
|
(goto-char 1)
|
|
|
|
(while (re-search-forward regexp nil t)
|
|
|
|
(cond
|
|
|
|
((match-end 1)
|
|
;; It is a label
|
|
(push (reftex-label-info (reftex-match-string 1) file bound)
|
|
docstruct))
|
|
|
|
((match-end 3)
|
|
;; It is a section
|
|
(setq bound (point))
|
|
|
|
;; Insert in List
|
|
(setq toc-entry (reftex-section-info file))
|
|
(when toc-entry
|
|
;; It can happen that section info returns nil
|
|
(setq level (nth 5 toc-entry))
|
|
(setq highest-level (min highest-level level))
|
|
(if (= level highest-level)
|
|
(message
|
|
"Scanning %s %s ..."
|
|
(car (rassoc level reftex-section-levels-all))
|
|
(nth 6 toc-entry)))
|
|
|
|
(push toc-entry docstruct)
|
|
(setq reftex-active-toc toc-entry)))
|
|
|
|
((match-end 7)
|
|
;; It's an include or input
|
|
(setq include-file (reftex-match-string 7))
|
|
;; Test if this file should be ignored
|
|
(unless (delq nil (mapcar
|
|
(lambda (x) (string-match x include-file))
|
|
reftex-no-include-regexps))
|
|
;; Parse it
|
|
(setq docstruct
|
|
(reftex-parse-from-file
|
|
include-file
|
|
docstruct master-dir))))
|
|
|
|
((match-end 9)
|
|
;; Appendix starts here
|
|
(reftex-init-section-numbers nil t)
|
|
(push (cons 'appendix t) docstruct))
|
|
|
|
((match-end 10)
|
|
;; Index entry
|
|
(when reftex-support-index
|
|
(setq index-entry (reftex-index-info file))
|
|
(when index-entry
|
|
(add-to-list 'index-tags (nth 1 index-entry))
|
|
(push index-entry docstruct))))
|
|
|
|
((match-end 11)
|
|
;; A macro with label
|
|
(save-excursion
|
|
(let* ((mac (reftex-match-string 11))
|
|
(label (progn (goto-char (match-end 11))
|
|
(save-match-data
|
|
(reftex-no-props
|
|
(reftex-nth-arg-wrapper
|
|
mac)))))
|
|
(typekey (nth 1 (assoc mac reftex-env-or-mac-alist)))
|
|
(entry (progn (if typekey
|
|
;; A typing macro
|
|
(goto-char (match-end 0))
|
|
;; A neutral macro
|
|
(goto-char (match-end 11))
|
|
(reftex-move-over-touching-args))
|
|
(reftex-label-info
|
|
label file bound nil nil))))
|
|
(push entry docstruct))))
|
|
(t (error "This should not happen (reftex-parse-from-file)")))
|
|
)
|
|
|
|
;; Find bibliography statement
|
|
(when (setq tmp (reftex-locate-bibliography-files master-dir))
|
|
(push (cons 'bib tmp) docstruct))
|
|
|
|
(goto-char 1)
|
|
(when (re-search-forward
|
|
"\\(\\`\\|[\n\r]\\)[ \t]*\\\\begin{thebibliography}" nil t)
|
|
(push (cons 'thebib file) docstruct))
|
|
|
|
;; Find external document specifications
|
|
(goto-char 1)
|
|
(while (re-search-forward "[\n\r][ \t]*\\\\externaldocument\\(\\[\\([^]]*\\)\\]\\)?{\\([^}]+\\)}" nil t)
|
|
(push (list 'xr-doc (reftex-match-string 2)
|
|
(reftex-match-string 3))
|
|
docstruct))
|
|
|
|
;; End of file mark
|
|
(push (list 'eof file) docstruct)))))
|
|
|
|
;; Kill the scanned buffer
|
|
(reftex-kill-temporary-buffers next-buf))
|
|
|
|
;; Return the list
|
|
docstruct))
|
|
|
|
(defun reftex-locate-bibliography-files (master-dir &optional files)
|
|
;; Scan buffer for bibliography macro and return file list.
|
|
|
|
(unless files
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(if (re-search-forward
|
|
(concat
|
|
"\\(\\`\\|[\n\r]\\)[^%]*\\\\\\("
|
|
(mapconcat 'identity reftex-bibliography-commands "\\|")
|
|
"\\){[ \t]*\\([^}]+\\)") nil t)
|
|
(setq files
|
|
(split-string (reftex-match-string 3)
|
|
"[ \t\n\r]*,[ \t\n\r]*")))))
|
|
(when files
|
|
(setq files
|
|
(mapcar
|
|
(lambda (x)
|
|
(if (or (member x reftex-bibfile-ignore-list)
|
|
(delq nil (mapcar (lambda (re) (string-match re x))
|
|
reftex-bibfile-ignore-regexps)))
|
|
;; excluded file
|
|
nil
|
|
;; find the file
|
|
(reftex-locate-file x "bib" master-dir)))
|
|
files))
|
|
(delq nil files)))
|
|
|
|
(defun reftex-replace-label-list-segment (old insert &optional entirely)
|
|
;; Replace the segment in OLD which corresponds to INSERT.
|
|
;; Works with side effects, directly changes old.
|
|
;; If entirely is t, just return INSERT.
|
|
;; This function also makes sure the old toc markers do not point anywhere.
|
|
|
|
(cond
|
|
(entirely
|
|
(reftex-silence-toc-markers old (length old))
|
|
insert)
|
|
(t (let* ((new old)
|
|
(file (nth 1 (car insert)))
|
|
(eof-list (member (list 'eof file) old))
|
|
(bof-list (member (list 'bof file) old))
|
|
n)
|
|
(if (not (and bof-list eof-list))
|
|
(error "Cannot splice")
|
|
;; Splice
|
|
(reftex-silence-toc-markers bof-list (- (length bof-list)
|
|
(length eof-list)))
|
|
(setq n (- (length old) (length bof-list)))
|
|
(setcdr (nthcdr n new) (cdr insert))
|
|
(setcdr (nthcdr (1- (length new)) new) (cdr eof-list)))
|
|
new))))
|
|
|
|
(defun reftex-section-info (file)
|
|
;; Return a section entry for the current match.
|
|
;; Carefull: This function expects the match-data to be still in place!
|
|
(let* ((marker (set-marker (make-marker) (1- (match-beginning 3))))
|
|
(macro (reftex-match-string 3))
|
|
(prefix (save-match-data
|
|
(if (string-match "begin{\\([^}]+\\)}" macro)
|
|
(match-string 1 macro))))
|
|
(level-exp (cdr (assoc macro reftex-section-levels-all)))
|
|
(level (if (symbolp level-exp)
|
|
(save-match-data (funcall level-exp))
|
|
level-exp))
|
|
(star (= ?* (char-after (match-end 3))))
|
|
(unnumbered (or star (< level 0)))
|
|
(level (abs level))
|
|
(section-number (reftex-section-number level unnumbered))
|
|
(text1 (save-match-data
|
|
(save-excursion
|
|
(reftex-context-substring prefix))))
|
|
(literal (buffer-substring-no-properties
|
|
(1- (match-beginning 3))
|
|
(min (point-max) (+ (match-end 0) (length text1) 1))))
|
|
;; Literal can be too short since text1 too short. No big problem.
|
|
(text (reftex-nicify-text text1)))
|
|
|
|
;; Add section number and indentation
|
|
(setq text
|
|
(concat
|
|
(make-string (* reftex-level-indent level) ?\ )
|
|
(if (nth 1 reftex-label-menu-flags) ; section number flag
|
|
(concat section-number " "))
|
|
(if prefix (concat (capitalize prefix) ": ") "")
|
|
text))
|
|
(list 'toc "toc" text file marker level section-number
|
|
literal (marker-position marker))))
|
|
|
|
(defun reftex-ensure-index-support (&optional abort)
|
|
;; When index support is turned off, ask to turn it on and
|
|
;; set the current prefix argument so that `reftex-access-scan-info'
|
|
;; will rescan the entire document.
|
|
(cond
|
|
(reftex-support-index t)
|
|
((y-or-n-p "Turn on index support and rescan entire document? ")
|
|
(setq reftex-support-index 'demanded
|
|
current-prefix-arg '(16)))
|
|
(t (if abort
|
|
(error "No index support")
|
|
(message "No index support")
|
|
(ding)
|
|
(sit-for 1)))))
|
|
|
|
(defun reftex-index-info-safe (file)
|
|
(reftex-with-special-syntax
|
|
(reftex-index-info file)))
|
|
|
|
(defvar test-dummy)
|
|
(defun reftex-index-info (file)
|
|
;; Return an index entry for the current match.
|
|
;; Carefull: This function expects the match-data to be still in place!
|
|
(catch 'exit
|
|
(let* ((macro (reftex-match-string 10))
|
|
(bom (match-beginning 10))
|
|
(boa (match-end 10))
|
|
(entry (or (assoc macro reftex-index-macro-alist)
|
|
(throw 'exit nil)))
|
|
(exclude (nth 3 entry))
|
|
;; The following is a test if this match should be excluded
|
|
(test-dummy (and (fboundp exclude)
|
|
(funcall exclude)
|
|
(throw 'exit nil)))
|
|
(itag (nth 1 entry))
|
|
(prefix (nth 2 entry))
|
|
(index-tag
|
|
(cond ((stringp itag) itag)
|
|
((integerp itag)
|
|
(progn (goto-char boa)
|
|
(or (reftex-nth-arg itag (nth 6 entry)) "idx")))
|
|
(t "idx")))
|
|
(arg (or (progn (goto-char boa)
|
|
(reftex-nth-arg (nth 5 entry) (nth 6 entry)))
|
|
""))
|
|
(end-of-args (progn (goto-char boa)
|
|
(reftex-move-over-touching-args)
|
|
(point)))
|
|
(end-of-context (progn (skip-chars-forward "^ \t\n\r") (point)))
|
|
(begin-of-context
|
|
(progn (goto-char bom)
|
|
(skip-chars-backward "^ \t\r\n")
|
|
(point)))
|
|
(context (buffer-substring-no-properties
|
|
begin-of-context end-of-context))
|
|
(key-end (if (string-match reftex-index-key-end-re arg)
|
|
(1+ (match-beginning 0))))
|
|
(rawkey (substring arg 0 key-end))
|
|
|
|
(key (if prefix (concat prefix rawkey) rawkey))
|
|
(sortkey (downcase key))
|
|
(showkey (mapconcat 'identity
|
|
(split-string key reftex-index-level-re)
|
|
" ! ")))
|
|
(goto-char end-of-args)
|
|
;; 0 1 2 3 4 5 6 7 8 9
|
|
(list 'index index-tag context file bom arg key showkey sortkey key-end))))
|
|
|
|
(defun reftex-short-context (env parse &optional bound derive)
|
|
;; Get about one line of useful context for the label definition at point.
|
|
|
|
(if (consp parse)
|
|
(setq parse (if derive (cdr parse) (car parse))))
|
|
|
|
(reftex-nicify-text
|
|
|
|
(cond
|
|
|
|
((null parse)
|
|
(save-excursion
|
|
(reftex-context-substring)))
|
|
|
|
((eq parse t)
|
|
(if (string= env "section")
|
|
;; special treatment for section labels
|
|
(save-excursion
|
|
(if (and (re-search-backward reftex-section-or-include-regexp
|
|
(point-min) t)
|
|
(match-end 2))
|
|
(progn
|
|
(goto-char (match-end 0))
|
|
(reftex-context-substring))
|
|
(if reftex-active-toc
|
|
(progn
|
|
(string-match "{\\([^}]*\\)" (nth 7 reftex-active-toc))
|
|
(match-string 1 (nth 7 reftex-active-toc)))
|
|
"SECTION HEADING NOT FOUND")))
|
|
(save-excursion
|
|
(goto-char reftex-default-context-position)
|
|
(unless (eq (string-to-char env) ?\\)
|
|
(reftex-move-over-touching-args))
|
|
(reftex-context-substring))))
|
|
|
|
((stringp parse)
|
|
(save-excursion
|
|
(if (re-search-backward parse bound t)
|
|
(progn
|
|
(goto-char (match-end 0))
|
|
(reftex-context-substring))
|
|
"NO MATCH FOR CONTEXT REGEXP")))
|
|
|
|
((integerp parse)
|
|
(or (save-excursion
|
|
(goto-char reftex-default-context-position)
|
|
(reftex-nth-arg
|
|
parse
|
|
(nth 6 (assoc env reftex-env-or-mac-alist))))
|
|
""))
|
|
|
|
((fboundp parse)
|
|
;; A hook function. Call it.
|
|
(save-excursion
|
|
(condition-case error-var
|
|
(funcall parse env)
|
|
(error (format "HOOK ERROR: %s" (cdr error-var))))))
|
|
(t
|
|
"ILLEGAL VALUE OF PARSE"))))
|
|
|
|
(defun reftex-where-am-I ()
|
|
;; Return the docstruct entry above point. Actually returns a cons
|
|
;; cell in which the cdr is a flag indicating if the information is
|
|
;; exact (t) or approximate (nil).
|
|
|
|
(let ((docstruct (symbol-value reftex-docstruct-symbol))
|
|
(cnt 0) rtn
|
|
found)
|
|
(save-excursion
|
|
(while (not rtn)
|
|
(incf cnt)
|
|
(setq found (re-search-backward (reftex-everything-regexp) nil t))
|
|
(setq rtn
|
|
(cond
|
|
((not found)
|
|
;; no match
|
|
(or
|
|
(car (member (list 'bof (buffer-file-name)) docstruct))
|
|
(not (setq cnt 2))
|
|
(assq 'bof docstruct) ;; for safety reasons
|
|
'corrupted))
|
|
((match-end 1)
|
|
;; Label
|
|
(assoc (reftex-match-string 1)
|
|
(symbol-value reftex-docstruct-symbol)))
|
|
((match-end 3)
|
|
;; Section
|
|
(goto-char (1- (match-beginning 3)))
|
|
(let* ((list (member (list 'bof (buffer-file-name))
|
|
docstruct))
|
|
(endelt (car (member (list 'eof (buffer-file-name))
|
|
list)))
|
|
rtn1)
|
|
(while (and list (not (eq endelt (car list))))
|
|
(if (and (eq (car (car list)) 'toc)
|
|
(string= (buffer-file-name)
|
|
(nth 3 (car list))))
|
|
(cond
|
|
((equal (point)
|
|
(or (and (markerp (nth 4 (car list)))
|
|
(marker-position (nth 4 (car list))))
|
|
(nth 8 (car list))))
|
|
;; Fits with marker position or recorded position
|
|
(setq rtn1 (car list) list nil))
|
|
((looking-at (reftex-make-regexp-allow-for-ctrl-m
|
|
(nth 7 (car list))))
|
|
;; Same title
|
|
(setq rtn1 (car list) list nil cnt 2))))
|
|
(pop list))
|
|
rtn1))
|
|
((match-end 7)
|
|
;; Input or include...
|
|
(car
|
|
(member (list 'eof (reftex-locate-file
|
|
(reftex-match-string 7) "tex"
|
|
(cdr (assq 'master-dir docstruct))))
|
|
docstruct)))
|
|
((match-end 9)
|
|
(assq 'appendix (symbol-value reftex-docstruct-symbol)))
|
|
((match-end 10)
|
|
;; Index entry
|
|
(when reftex-support-index
|
|
(let* ((index-info (save-excursion
|
|
(reftex-index-info-safe nil)))
|
|
(list (member (list 'bof (buffer-file-name))
|
|
docstruct))
|
|
(endelt (car (member (list 'eof (buffer-file-name))
|
|
list)))
|
|
dist last-dist last (n 0))
|
|
;; Check all index entries with equal text
|
|
(while (and list (not (eq endelt (car list))))
|
|
(when (and (eq (car (car list)) 'index)
|
|
(string= (nth 2 index-info)
|
|
(nth 2 (car list))))
|
|
(incf n)
|
|
(setq dist (abs (- (point) (nth 4 (car list)))))
|
|
(if (or (not last-dist) (< dist last-dist))
|
|
(setq last-dist dist last (car list))))
|
|
(setq list (cdr list)))
|
|
;; We are sure if we have only one, or a zero distance
|
|
(cond ((or (= n 1) (= dist 0)) last)
|
|
((> n 1) (setq cnt 2) last)
|
|
(t nil)))))
|
|
((match-end 11)
|
|
(save-excursion
|
|
(goto-char (match-end 11))
|
|
(assoc (reftex-no-props
|
|
(reftex-nth-arg-wrapper
|
|
(reftex-match-string 11)))
|
|
(symbol-value reftex-docstruct-symbol))))
|
|
(t
|
|
(error "This should not happen (reftex-where-am-I)"))))))
|
|
(cons rtn (eq cnt 1))))
|
|
|
|
(defun reftex-notice-new (&optional n force)
|
|
"Hook to handshake with RefTeX after something new has been inserted."
|
|
;; Add a new entry to the docstruct list. If it is a section, renumber
|
|
;; the following sections.
|
|
;; FIXME: Put in a WHAT parameter
|
|
;; When N is given, go back that many matches of reftex-everything-regexp
|
|
;; When FORCE is non-nil, also insert if `reftex-where-am-I' was uncertain.
|
|
(condition-case nil
|
|
(catch 'exit
|
|
(unless reftex-mode (throw 'exit nil))
|
|
(reftex-access-scan-info)
|
|
(let* ((docstruct (symbol-value reftex-docstruct-symbol))
|
|
here-I-am appendix tail entry star level
|
|
section-number context)
|
|
|
|
(save-excursion
|
|
(when (re-search-backward (reftex-everything-regexp) nil t (or n 1))
|
|
|
|
;; Find where we are
|
|
(setq here-I-am (reftex-where-am-I))
|
|
(or here-I-am (throw 'exit nil))
|
|
(unless (or force (cdr here-I-am)) (throw 'exit nil))
|
|
(setq tail (memq (car here-I-am) docstruct))
|
|
(or tail (throw 'exit nil))
|
|
(setq reftex-active-toc (reftex-last-assoc-before-elt
|
|
'toc (car here-I-am) docstruct)
|
|
appendix (reftex-last-assoc-before-elt
|
|
'appendix (car here-I-am) docstruct))
|
|
|
|
;; Initialize section numbers
|
|
(if (eq (car (car here-I-am)) 'appendix)
|
|
(reftex-init-section-numbers nil t)
|
|
(reftex-init-section-numbers reftex-active-toc appendix))
|
|
|
|
;; Match the section command
|
|
(when (re-search-forward (reftex-everything-regexp) nil t)
|
|
(cond
|
|
((match-end 1)
|
|
(push (reftex-label-info (reftex-match-string 1) buffer-file-name)
|
|
(cdr tail)))
|
|
|
|
((match-end 3)
|
|
(setq star (= ?* (char-after (match-end 3)))
|
|
entry (reftex-section-info (buffer-file-name))
|
|
level (nth 5 entry))
|
|
;; Insert the section info
|
|
(push entry (cdr tail))
|
|
|
|
;; We are done unless we use section numbers
|
|
(unless (nth 1 reftex-label-menu-flags) (throw 'exit nil))
|
|
|
|
;; Update the remaining toc items
|
|
(setq tail (cdr tail))
|
|
(while (and (setq tail (memq (assq 'toc (cdr tail)) tail))
|
|
(setq entry (car tail))
|
|
(>= (nth 5 entry) level))
|
|
(setq star (string-match "\\*" (nth 6 entry))
|
|
context (nth 2 entry)
|
|
section-number
|
|
(reftex-section-number (nth 5 entry) star))
|
|
(when (string-match "\\`\\([ \t]*\\)\\([.0-9A-Z]+\\)\\(.*\\)"
|
|
context)
|
|
(when (and (not appendix)
|
|
(>= (string-to-char (match-string 2)) ?A))
|
|
;; Just entered the appendex. Get out.
|
|
(throw 'exit nil))
|
|
|
|
;; Change the section number.
|
|
(setf (nth 2 entry)
|
|
(concat (match-string 1 context)
|
|
section-number
|
|
(match-string 3 context))))))
|
|
((match-end 10)
|
|
;; Index entry
|
|
(and reftex-support-index
|
|
(setq entry (reftex-index-info-safe buffer-file-name))
|
|
;; FIXME: (add-to-list 'index-tags (nth 1 index-entry))
|
|
(push entry (cdr tail))))))))))
|
|
|
|
(error nil))
|
|
)
|
|
|
|
(defsubst reftex-move-to-previous-arg (&optional bound)
|
|
;; Assuming that we are in front of a macro argument,
|
|
;; move backward to the closing parenthesis of the previous argument.
|
|
;; This function understands the splitting of macros over several lines
|
|
;; in TeX.
|
|
(cond
|
|
;; Just to be quick:
|
|
((memq (preceding-char) '(?\] ?\})))
|
|
;; Do a search
|
|
((and reftex-allow-detached-macro-args
|
|
(re-search-backward
|
|
"[]}][ \t]*[\n\r]?\\([ \t]*%[^\n\r]*[\n\r]\\)*[ \t]*\\=" bound t))
|
|
(goto-char (1+ (match-beginning 0)))
|
|
t)
|
|
(t nil)))
|
|
|
|
(defun reftex-what-macro-safe (which &optional bound)
|
|
;; reftex-what-macro with special syntax table.
|
|
(reftex-with-special-syntax
|
|
(reftex-what-macro which bound)))
|
|
|
|
(defun reftex-what-macro (which &optional bound)
|
|
;; Find out if point is within the arguments of any TeX-macro.
|
|
;; The return value is either ("\\macro" . (point)) or a list of them.
|
|
|
|
;; If WHICH is nil, immediately return nil.
|
|
;; If WHICH is 1, return innermost enclosing macro.
|
|
;; If WHICH is t, return list of all macros enclosing point.
|
|
;; If WHICH is a list of macros, look only for those macros and return the
|
|
;; name of the first macro in this list found to enclose point.
|
|
;; If the optional BOUND is an integer, bound backwards directed
|
|
;; searches to this point. If it is nil, limit to nearest \section -
|
|
;; like statement.
|
|
|
|
;; This function is pretty stable, but can be fooled if the text contains
|
|
;; things like \macro{aa}{bb} where \macro is defined to take only one
|
|
;; argument. As RefTeX cannot know this, the string "bb" would still be
|
|
;; considered an argument of macro \macro.
|
|
|
|
(unless reftex-section-regexp (reftex-compile-variables))
|
|
(catch 'exit
|
|
(if (null which) (throw 'exit nil))
|
|
(let ((bound (or bound (save-excursion (re-search-backward
|
|
reftex-section-regexp nil 1)
|
|
(point))))
|
|
pos cmd-list cmd cnt cnt-opt entry)
|
|
(save-restriction
|
|
(save-excursion
|
|
(narrow-to-region (max 1 bound) (point-max))
|
|
;; move back out of the current parenthesis
|
|
(while (condition-case nil
|
|
(progn (up-list -1) t)
|
|
(error nil))
|
|
(setq cnt 1 cnt-opt 0)
|
|
;; move back over any touching sexps
|
|
(while (and (reftex-move-to-previous-arg bound)
|
|
(condition-case nil
|
|
(progn (backward-sexp) t)
|
|
(error nil)))
|
|
(if (eq (following-char) ?\[) (incf cnt-opt))
|
|
(incf cnt))
|
|
(setq pos (point))
|
|
(when (and (or (= (following-char) ?\[)
|
|
(= (following-char) ?\{))
|
|
(re-search-backward "\\\\[*a-zA-Z]+\\=" nil t))
|
|
(setq cmd (reftex-match-string 0))
|
|
(when (looking-at "\\\\begin{[^}]*}")
|
|
(setq cmd (reftex-match-string 0)
|
|
cnt (1- cnt)))
|
|
;; This does ignore optional arguments. Very hard to fix.
|
|
(when (setq entry (assoc cmd reftex-env-or-mac-alist))
|
|
(if (> cnt (or (nth 4 entry) 100))
|
|
(setq cmd nil)))
|
|
(cond
|
|
((null cmd))
|
|
((eq t which)
|
|
(push (cons cmd (point)) cmd-list))
|
|
((or (eq 1 which) (member cmd which))
|
|
(throw 'exit (cons cmd (point))))))
|
|
(goto-char pos)))
|
|
(nreverse cmd-list)))))
|
|
|
|
(defun reftex-what-environment (which &optional bound)
|
|
;; Find out if point is inside a LaTeX environment.
|
|
;; The return value is (e.g.) either ("equation" . (point)) or a list of
|
|
;; them.
|
|
|
|
;; If WHICH is nil, immediately return nil.
|
|
;; If WHICH is 1, return innermost enclosing environment.
|
|
;; If WHICH is t, return list of all environments enclosing point.
|
|
;; If WHICH is a list of environments, look only for those environments and
|
|
;; return the name of the first environment in this list found to enclose
|
|
;; point.
|
|
|
|
;; If the optional BOUND is an integer, bound backwards directed searches to
|
|
;; this point. If it is nil, limit to nearest \section - like statement.
|
|
|
|
(unless reftex-section-regexp (reftex-compile-variables))
|
|
(catch 'exit
|
|
(save-excursion
|
|
(if (null which) (throw 'exit nil))
|
|
(let ((bound (or bound (save-excursion (re-search-backward
|
|
reftex-section-regexp nil 1)
|
|
(point))))
|
|
env-list end-list env)
|
|
(while (re-search-backward "\\\\\\(begin\\|end\\){\\([^}]+\\)}"
|
|
bound t)
|
|
(setq env (buffer-substring-no-properties
|
|
(match-beginning 2) (match-end 2)))
|
|
(cond
|
|
((string= (match-string 1) "end")
|
|
(push env end-list))
|
|
((equal env (car end-list))
|
|
(setq end-list (cdr end-list)))
|
|
((eq t which)
|
|
(push (cons env (point)) env-list))
|
|
((or (eq 1 which) (member env which))
|
|
(throw 'exit (cons env (point))))))
|
|
(nreverse env-list)))))
|
|
|
|
(defun reftex-what-special-env (which &optional bound)
|
|
;; Run the special environment parsers and return the matches.
|
|
;;
|
|
;; The return value is (e.g.) either ("my-parser-function" . (point))
|
|
;; or a list of them.
|
|
|
|
;; If WHICH is nil, immediately return nil.
|
|
;; If WHICH is 1, return innermost enclosing environment.
|
|
;; If WHICH is t, return list of all environments enclosing point.
|
|
;; If WHICH is a list of environments, look only for those environments and
|
|
;; return the name of the first environment in this list found to enclose
|
|
;; point.
|
|
|
|
(unless reftex-section-regexp (reftex-compile-variables))
|
|
(catch 'exit
|
|
(save-excursion
|
|
(if (null reftex-special-env-parsers) (throw 'exit nil))
|
|
(if (null which) (throw 'exit nil))
|
|
(let ((bound (or bound (save-excursion (re-search-backward
|
|
reftex-section-regexp nil 1)
|
|
(point))))
|
|
(fun-list (if (listp which)
|
|
(mapcar (lambda (x) (if (memq x which) x nil))
|
|
reftex-special-env-parsers)
|
|
reftex-special-env-parsers))
|
|
specials rtn)
|
|
;; Call all functions
|
|
(setq specials (mapcar
|
|
(lambda (fun)
|
|
(save-excursion
|
|
(setq rtn (and fun (funcall fun bound)))
|
|
(if rtn (cons (symbol-name fun) rtn) nil)))
|
|
fun-list))
|
|
;; Delete the non-matches
|
|
(setq specials (delq nil specials))
|
|
;; Sort
|
|
(setq specials (sort specials (lambda (a b) (> (cdr a) (cdr b)))))
|
|
(if (eq which t)
|
|
specials
|
|
(car specials))))))
|
|
|
|
(defsubst reftex-move-to-next-arg (&optional ignore)
|
|
;; Assuming that we are at the end of a macro name or a macro argument,
|
|
;; move forward to the opening parenthesis of the next argument.
|
|
;; This function understands the splitting of macros over several lines
|
|
;; in TeX.
|
|
(cond
|
|
;; Just to be quick:
|
|
((memq (following-char) '(?\[ ?\{)))
|
|
;; Do a search
|
|
((and reftex-allow-detached-macro-args
|
|
(looking-at "[ \t]*[\n\r]?\\([ \t]*%[^\n\r]*[\n\r]\\)*[ \t]*[[{]"))
|
|
(goto-char (1- (match-end 0)))
|
|
t)
|
|
(t nil)))
|
|
|
|
(defun reftex-nth-arg-wrapper (key)
|
|
(let ((entry (assoc key reftex-env-or-mac-alist)))
|
|
(reftex-nth-arg (nth 5 entry) (nth 6 entry))))
|
|
|
|
(defun reftex-nth-arg (n &optional opt-args)
|
|
;; Return the nth following {} or [] parentheses content.
|
|
;; OPT-ARGS is a list of argument numbers which are optional.
|
|
|
|
;; If we are sitting at a macro start, skip to end of macro name.
|
|
(and (eq (following-char) ?\\) (skip-chars-forward "a-zA-Z*\\\\"))
|
|
|
|
(if (= n 1000)
|
|
;; Special case: Skip all touching arguments
|
|
(progn
|
|
(reftex-move-over-touching-args)
|
|
(reftex-context-substring))
|
|
|
|
;; Do the real thing.
|
|
(let ((cnt 1))
|
|
|
|
(when (reftex-move-to-next-arg)
|
|
|
|
(while (< cnt n)
|
|
(while (and (member cnt opt-args)
|
|
(eq (following-char) ?\{))
|
|
(incf cnt))
|
|
(when (< cnt n)
|
|
(unless (and (condition-case nil
|
|
(or (forward-list 1) t)
|
|
(error nil))
|
|
(reftex-move-to-next-arg)
|
|
(incf cnt))
|
|
(setq cnt 1000))))
|
|
|
|
(while (and (memq cnt opt-args)
|
|
(eq (following-char) ?\{))
|
|
(incf cnt)))
|
|
(if (and (= n cnt)
|
|
(> (skip-chars-forward "{\\[") 0))
|
|
(reftex-context-substring)
|
|
nil))))
|
|
|
|
(defun reftex-move-over-touching-args ()
|
|
(condition-case nil
|
|
(while (memq (following-char) '(?\[ ?\{))
|
|
(forward-list 1))
|
|
(error nil)))
|
|
|
|
(defun reftex-context-substring (&optional to-end)
|
|
;; Return up to 150 chars from point
|
|
;; When point is just after a { or [, limit string to matching parenthesis
|
|
(cond
|
|
(to-end
|
|
;; Environment - find next \end
|
|
(buffer-substring-no-properties
|
|
(point)
|
|
(min (+ (point) 150)
|
|
(save-match-data
|
|
;; FIXME: THis is not perfect
|
|
(if (re-search-forward "\\\\end{" nil t)
|
|
(match-beginning 0)
|
|
(point-max))))))
|
|
((or (= (preceding-char) ?\{)
|
|
(= (preceding-char) ?\[))
|
|
;; Inside a list - get only the list.
|
|
(buffer-substring-no-properties
|
|
(point)
|
|
(min (+ (point) 150)
|
|
(point-max)
|
|
(condition-case nil
|
|
(progn
|
|
(up-list 1)
|
|
(1- (point)))
|
|
(error (point-max))))))
|
|
(t
|
|
;; no list - just grab 150 characters
|
|
(buffer-substring-no-properties (point)
|
|
(min (+ (point) 150) (point-max))))))
|
|
|
|
;; Variable holding the vector with section numbers
|
|
(defvar reftex-section-numbers (make-vector reftex-max-section-depth 0))
|
|
|
|
(defun reftex-init-section-numbers (&optional toc-entry appendix)
|
|
;; Initialize the section numbers with zeros or with what is found
|
|
;; in the toc entry.
|
|
(let* ((level (or (nth 5 toc-entry) -1))
|
|
(numbers (nreverse (split-string (or (nth 6 toc-entry) "") "\\.")))
|
|
(depth (1- (length reftex-section-numbers)))
|
|
(i depth) number-string)
|
|
(while (>= i 0)
|
|
(if (> i level)
|
|
(aset reftex-section-numbers i 0)
|
|
(setq number-string (or (car numbers) "0"))
|
|
(if (string-match "\\`[A-Z]\\'" number-string)
|
|
(aset reftex-section-numbers i
|
|
(- (string-to-char number-string) ?A -1))
|
|
(aset reftex-section-numbers i (string-to-int number-string)))
|
|
(pop numbers))
|
|
(decf i)))
|
|
(put 'reftex-section-numbers 'appendix appendix))
|
|
|
|
(defun reftex-section-number (&optional level star)
|
|
;; Return a string with the current section number.
|
|
;; When LEVEL is non-nil, increase section numbers on that level.
|
|
(let* ((depth (1- (length reftex-section-numbers))) idx n (string "")
|
|
(appendix (get 'reftex-section-numbers 'appendix)))
|
|
(when level
|
|
(when (and (> level -1) (not star))
|
|
(aset reftex-section-numbers
|
|
level (1+ (aref reftex-section-numbers level))))
|
|
(setq idx (1+ level))
|
|
(when (not star)
|
|
(while (<= idx depth)
|
|
(aset reftex-section-numbers idx 0)
|
|
(incf idx))))
|
|
(setq idx 0)
|
|
(while (<= idx depth)
|
|
(setq n (aref reftex-section-numbers idx))
|
|
(setq string (concat string (if (not (string= string "")) "." "")
|
|
(int-to-string n)))
|
|
(incf idx))
|
|
(save-match-data
|
|
(if (string-match "\\`\\([@0]\\.\\)+" string)
|
|
(setq string (replace-match "" nil nil string)))
|
|
(if (string-match "\\(\\.0\\)+\\'" string)
|
|
(setq string (replace-match "" nil nil string)))
|
|
(if (and appendix
|
|
(string-match "\\`[0-9]+" string))
|
|
(setq string
|
|
(concat
|
|
(char-to-string
|
|
(1- (+ ?A (string-to-int (match-string 0 string)))))
|
|
(substring string (match-end 0))))))
|
|
(if star
|
|
(concat (make-string (1- (length string)) ?\ ) "*")
|
|
string)))
|
|
|
|
;;; reftex-parse.el ends here
|