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 Eric S. Raymond committed May 30, 1992 1 2 ;;; tex-mode.el --- TeX, LaTeX, and SliTeX mode commands.  root committed Aug 28, 1990 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 ;; Copyright (C) 1985, 1986, 1989 Free Software Foundation, Inc. ;; Rewritten following contributions by William F. Schelter ;; and Dick King (king@kestrel). ;; Supported since 1986 by Stephen Gildea ;; and Michael Prange . ;; Various improvements and corrections in Fall, 1989 by ;; Edward M. Reingold . ;; 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 1, 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, 675 Mass Ave, Cambridge, MA 02139, USA. ;; Still to do: ;; Make TAB indent correctly for TeX code. Then we can make Linefeed ;; do something more useful. ;; ;; Have spell understand TeX instead of assuming the entire world ;; uses nroff. ;; ;; The code for finding matching $needs to be fixed. (require 'oshell) (defvar tex-directory "./" "*Directory in which to run TeX subjob. Temporary files are created here.") (defvar tex-run-command "tex" "*Command used to run TeX subjob. The name of the file will be appended to this string, separated by a space.") (defvar latex-run-command "latex" "*Command used to run LaTeX subjob. The name of the file will be appended to this string, separated by a space.") (defvar slitex-run-command "slitex" "*Command used to run SliTeX subjob. The name of the file will be appended to this string, separated by a space.") (defvar tex-bibtex-command "bibtex" "*Command string used by tex-bibtex-file' to gather bibliographic data. The name of the file will be appended to this string, separated by a space.") (defvar tex-dvi-print-command "lpr -d" "*Command string used by \$tex-print] to print a .dvi file.") (defvar tex-dvi-view-command nil "*Command string used by \\[tex-view] to display a .dvi file.") (defvar tex-show-queue-command "lpq" "*Command string used by \\[tex-show-print-queue] to show the print queue. Should show the queue that \\[tex-print] puts jobs on.") (defvar tex-default-mode 'plain-tex-mode "*Mode to enter for a new file that might be either TeX or LaTeX. This variable is used when it can't be determined whether the file is plain TeX or LaTeX or what because the file contains no commands. Normally set to either 'plain-tex-mode or 'latex-mode.") (defvar tex-open-quote "" "*String inserted by typing \\[tex-insert-quote] to open a quotation.") (defvar tex-close-quote "''" "*String inserted by typing \\[tex-insert-quote] to close a quotation.") (defvar tex-command nil "Command to run TeX. The name of the file will be appended to this string, separated by a space.") (defvar tex-trailer nil "String appended after the end of a region sent to TeX by \\[tex-region].") (defvar tex-start-of-header nil "String used by \\[tex-region] to delimit the start of the file's header.") (defvar tex-end-of-header nil "String used by \\[tex-region] to delimit the end of the file's header.") (defvar tex-shell-cd-command "cd" "Command to give to shell running TeX to change directory. The value of tex-directory will be appended to this, separated by a space.") (defvar tex-zap-file nil "Temporary file name used for text being sent as input to TeX. Should be a simple file name with no extension or directory specification.") (defvar tex-last-buffer-texed nil "Buffer which was last TeXed.") (defvar tex-print-file nil "File name that \\[tex-print] prints. Set by \\[tex-region], \\[tex-buffer], and \\[tex-file].") (defvar tex-mode-syntax-table nil "Syntax table used while in TeX mode.") (defun tex-define-common-keys (keymap) "Define the keys that we want defined both in TeX mode and in the tex-shell." (define-key keymap "\C-c\C-k" 'tex-kill-job) (define-key keymap "\C-c\C-l" 'tex-recenter-output-buffer) (define-key keymap "\C-c\C-q" 'tex-show-print-queue) (define-key keymap "\C-c\C-p" 'tex-print) (define-key keymap "\C-c\C-v" 'tex-view) ) (defvar tex-mode-map nil "Keymap for TeX mode.") (if tex-mode-map nil (setq tex-mode-map (make-sparse-keymap)) (tex-define-common-keys tex-mode-map) (define-key tex-mode-map "\"" 'tex-insert-quote) (define-key tex-mode-map "\n" 'tex-terminate-paragraph) (define-key tex-mode-map "\C-c}" 'up-list) (define-key tex-mode-map "\C-c{" 'tex-insert-braces) (define-key tex-mode-map "\C-c\C-r" 'tex-region) (define-key tex-mode-map "\C-c\C-b" 'tex-buffer) (define-key tex-mode-map "\C-c\C-f" 'tex-file) (define-key tex-mode-map "\C-c\C-i" 'tex-bibtex-file) (define-key tex-mode-map "\C-c\C-o" 'tex-latex-block) (define-key tex-mode-map "\C-c\C-e" 'tex-close-latex-block)) (defvar tex-shell-map nil "Keymap for the tex-shell. A shell-mode-map with a few additions.") ;(fset 'TeX-mode 'tex-mode) ;in loaddefs. ;;; This would be a lot simpler if we just used a regexp search, ;;; but then it would be too slow.  Roland McGrath committed May 09, 1991 142 ;;;###autoload  root committed Aug 28, 1990 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 (defun tex-mode () "Major mode for editing files of input for TeX, LaTeX, or SliTeX. Tries to determine (by looking at the beginning of the file) whether this file is for plain TeX, LaTeX, or SliTeX and calls plain-tex-mode, latex-mode, or slitex-mode, respectively. If it cannot be determined, such as if there are no commands in the file, the value of tex-default-mode is used." (interactive) (let (mode slash comment) (save-excursion (goto-char (point-min)) (while (and (setq slash (search-forward "\\" nil t)) (setq comment (let ((search-end (point))) (save-excursion (beginning-of-line) (search-forward "%" search-end t)))))) (if (and slash (not comment)) (setq mode (if (looking-at "documentstyle") (if (looking-at "documentstyle{slides}") 'slitex-mode 'latex-mode) 'plain-tex-mode)))) (if mode (funcall mode) (funcall tex-default-mode))))  Jim Blandy committed May 13, 1991 167 168 169 170 ;;;###autoload (fset 'TeX-mode 'tex-mode) ;;;###autoload (fset 'LaTeX-mode 'latex-mode)  root committed Aug 28, 1990 171   Roland McGrath committed May 09, 1991 172 ;;;###autoload  root committed Aug 28, 1990 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 (defun plain-tex-mode () "Major mode for editing files of input for plain TeX. Makes and } display the characters they match. Makes \" insert  when it seems to be the beginning of a quotation, and '' when it appears to be the end; it inserts \" only after a \\. Use \\[tex-region] to run TeX on the current region, plus a \"header\" copied from the top of the file (containing macro definitions, etc.), running TeX under a special subshell. \\[tex-buffer] does the whole buffer. \\[tex-file] saves the buffer and then processes the file. \\[tex-print] prints the .dvi file made by any of these. \\[tex-view] previews the .dvi file made by any of these. \\[tex-bibtex-file] runs bibtex on the file of the current buffer. Use \\[validate-tex-buffer] to check buffer for paragraphs containing mismatched 's or braces. Special commands: \\{tex-mode-map} Mode variables: tex-run-command Command string used by \\[tex-region] or \\[tex-buffer]. tex-directory Directory in which to create temporary files for TeX jobs run by \\[tex-region] or \\[tex-buffer]. tex-dvi-print-command Command string used by \\[tex-print] to print a .dvi file. tex-dvi-view-command Command string used by \\[tex-view] to preview a .dvi file. tex-show-queue-command Command string used by \\[tex-show-print-queue] to show the print queue that \\[tex-print] put your job on. Entering Plain-tex mode calls the value of text-mode-hook, then the value of tex-mode-hook, and then the value of plain-tex-mode-hook. When the special subshell is initiated, the value of tex-shell-hook is called." (interactive) (tex-common-initialization) (setq mode-name "TeX") (setq major-mode 'plain-tex-mode) (setq tex-command tex-run-command) (setq tex-start-of-header "%**start of header") (setq tex-end-of-header "%**end of header") (setq tex-trailer "\\bye\n") (run-hooks 'text-mode-hook 'tex-mode-hook 'plain-tex-mode-hook))  Jim Blandy committed May 13, 1991 219 220 ;;;###autoload (fset 'plain-TeX-mode 'plain-tex-mode)  root committed Aug 28, 1990 221   Roland McGrath committed May 09, 1991 222 ;;;###autoload  root committed Aug 28, 1990 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 (defun latex-mode () "Major mode for editing files of input for LaTeX. Makes and } display the characters they match. Makes \" insert  when it seems to be the beginning of a quotation, and '' when it appears to be the end; it inserts \" only after a \\. Use \\[tex-region] to run LaTeX on the current region, plus the preamble copied from the top of the file (containing \\documentstyle, etc.), running LaTeX under a special subshell. \\[tex-buffer] does the whole buffer. \\[tex-file] saves the buffer and then processes the file. \\[tex-print] prints the .dvi file made by any of these. \\[tex-view] previews the .dvi file made by any of these. \\[tex-bibtex-file] runs bibtex on the file of the current buffer. Use \\[validate-tex-buffer] to check buffer for paragraphs containing mismatched 's or braces. Special commands: \\{tex-mode-map} Mode variables: latex-run-command Command string used by \\[tex-region] or \\[tex-buffer]. tex-directory Directory in which to create temporary files for LaTeX jobs run by \\[tex-region] or \\[tex-buffer]. tex-dvi-print-command Command string used by \\[tex-print] to print a .dvi file. tex-dvi-view-command Command string used by \\[tex-view] to preview a .dvi file. tex-show-queue-command Command string used by \\[tex-show-print-queue] to show the print queue that \\[tex-print] put your job on. Entering Latex mode calls the value of text-mode-hook, then the value of tex-mode-hook, and then the value of latex-mode-hook. When the special subshell is initiated, the value of tex-shell-hook is called." (interactive) (tex-common-initialization) (setq mode-name "LaTeX") (setq major-mode 'latex-mode) (setq tex-command latex-run-command) (setq tex-start-of-header "\\documentstyle") (setq tex-end-of-header "\\begin{document}") (setq tex-trailer "\\end{document}\n") (run-hooks 'text-mode-hook 'tex-mode-hook 'latex-mode-hook)) (defun slitex-mode () "Major mode for editing files of input for SliTeX. Makes and } display the characters they match. Makes \" insert  when it seems to be the beginning of a quotation, and '' when it appears to be the end; it inserts \" only after a \\. Use \\[tex-region] to run SliTeX on the current region, plus the preamble copied from the top of the file (containing \\documentstyle, etc.), running SliTeX under a special subshell. \\[tex-buffer] does the whole buffer. \\[tex-file] saves the buffer and then processes the file. \\[tex-print] prints the .dvi file made by any of these. \\[tex-view] previews the .dvi file made by any of these. \\[tex-bibtex-file] runs bibtex on the file of the current buffer. Use \\[validate-tex-buffer] to check buffer for paragraphs containing mismatched 's or braces. Special commands: \\{tex-mode-map} Mode variables: slitex-run-command Command string used by \\[tex-region] or \\[tex-buffer]. tex-directory Directory in which to create temporary files for SliTeX jobs run by \\[tex-region] or \\[tex-buffer]. tex-dvi-print-command Command string used by \\[tex-print] to print a .dvi file. tex-dvi-view-command Command string used by \\[tex-view] to preview a .dvi file. tex-show-queue-command Command string used by \\[tex-show-print-queue] to show the print queue that \\[tex-print] put your job on. Entering SliTex mode calls the value of text-mode-hook, then the value of tex-mode-hook, then the value of latex-mode-hook, and then the value of slitex-mode-hook. When the special subshell is initiated, the value of tex-shell-hook is called." (interactive) (tex-common-initialization) (setq mode-name "SliTeX") (setq major-mode 'slitex-mode) (setq tex-command slitex-run-command) (setq tex-start-of-header "\\documentstyle{slides}") (setq tex-end-of-header "\\begin{document}") (setq tex-trailer "\\end{document}\n") (run-hooks 'text-mode-hook 'tex-mode-hook 'latex-mode-hook 'slitex-mode-hook)) (defun tex-common-initialization () (kill-all-local-variables) (use-local-map tex-mode-map) (setq local-abbrev-table text-mode-abbrev-table) (if (null tex-mode-syntax-table) (let ((char 0)) (setq tex-mode-syntax-table (make-syntax-table)) (set-syntax-table tex-mode-syntax-table) (while (< char ? ) (modify-syntax-entry char ".") (setq char (1+ char))) (modify-syntax-entry ?\C-@ "w") (modify-syntax-entry ?\t " ") (modify-syntax-entry ?\n ">") (modify-syntax-entry ?\f ">") (modify-syntax-entry ? "") (modify-syntax-entry ?% "<") (modify-syntax-entry ?\\ "/") (modify-syntax-entry ?\" ".") (modify-syntax-entry ?& ".") (modify-syntax-entry ?_ ".") (modify-syntax-entry ?@ "_") (modify-syntax-entry ?~ " ") (modify-syntax-entry ?' "w")) (set-syntax-table tex-mode-syntax-table)) (make-local-variable 'paragraph-start) (setq paragraph-start "^[ \t]*\\|^[\f\\\\%]") (make-local-variable 'paragraph-separate) (setq paragraph-separate paragraph-start) (make-local-variable 'comment-start) (setq comment-start "%") (make-local-variable 'comment-start-skip) (setq comment-start-skip "\$$\\(^\\|[^\$\$$\$$\\\\\\\\\$$*\\)\$$%+ *\$$") (make-local-variable 'comment-indent-hook) (setq comment-indent-hook 'tex-comment-indent) (make-local-variable 'compare-windows-whitespace) (setq compare-windows-whitespace 'tex-categorize-whitespace) (make-local-variable 'tex-command) (make-local-variable 'tex-start-of-header) (make-local-variable 'tex-end-of-header) (make-local-variable 'tex-trailer)) (defun tex-comment-indent () (if (looking-at "%%%") (current-column) (skip-chars-backward " \t") (max (if (bolp) 0 (1+ (current-column))) comment-column))) (defun tex-categorize-whitespace (backward-limit) ;; compare-windows-whitespace is set to this. ;; This is basically a finite-state machine. ;; Returns a symbol telling how TeX would treat ;; the whitespace we are looking at: null, space, or par. (let ((category 'null) (not-finished t)) (skip-chars-backward " \t\n\f" backward-limit) (while not-finished (cond ((looking-at "[ \t]+") (goto-char (match-end 0)) (if (eql category 'null) (setq category 'space))) ((looking-at "\n") (cond ((eql category 'newline) (setq category 'par) (setq not-finished nil)) (t (setq category 'newline) ;a strictly internal state (goto-char (match-end 0))))) ((looking-at "\f+") (setq category 'par) (setq not-finished nil)) (t (setq not-finished nil)))) (skip-chars-forward " \t\n\f") (if (eql category 'newline) 'space ;TeX doesn't distinguish category))) (defun tex-insert-quote (arg) "Insert the appropriate quote marks for TeX. Inserts the value of tex-open-quote (normally ) or tex-close-quote (normally '') depending on the context. With prefix argument, always inserts \" characters." (interactive "P") (if arg (self-insert-command (prefix-numeric-value arg)) (insert (cond ((or (bobp) (save-excursion (forward-char -1) (looking-at "\\s(\\|\\s \\|\\s>"))) tex-open-quote) ((= (preceding-char) ?\\) ?\") (t tex-close-quote))))) (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." (interactive) (let ((opoint (point))) (goto-char (point-max)) ;; Does not use save-excursion ;; because we do not want to save the mark. (unwind-protect (while (and (not (input-pending-p)) (not (bobp))) (let ((end (point))) (search-backward "\n\n" nil 'move) (or (tex-validate-region (point) end) (progn (push-mark (point)) (message "Mismatch found in pararaph starting here") (sit-for 4))))) (goto-char opoint)))) (defun tex-validate-region (start end) "Check for mismatched braces or $'s in region. Returns t if no mismatches. Returns nil and moves point to suspect area if a mismatch is found." (interactive "r") (let ((failure-point nil) (max-possible-sexps (- end start))) (save-excursion (condition-case () (save-restriction (narrow-to-region start end) (goto-char start) (while (< 0 (setq max-possible-sexps (1- max-possible-sexps))) (forward-sexp 1))) (error (setq failure-point (point))))) (if failure-point (progn (goto-char failure-point) nil) t))) (defun tex-terminate-paragraph (inhibit-validation) "Insert two newlines, breaking a paragraph for TeX. Check for mismatched braces/$'s in paragraph being terminated. A prefix arg inhibits the checking." (interactive "P") (or inhibit-validation (save-excursion (tex-validate-region (save-excursion (search-backward "\n\n" nil 'move) (point)) (point))) (message "Paragraph being closed appears to contain a mismatch")) (insert "\n\n")) (defun tex-insert-braces () "Make a pair of braces and be poised to type inside of them." (interactive) (insert ?\{) (save-excursion (insert ?}))) ;;; Like tex-insert-braces, but for LaTeX. (defun tex-latex-block (name) "Creates a matching pair of lines \\begin{NAME} and \\end{NAME} at point. Puts point on a blank line between them." (interactive "*sLaTeX block name: ") (let ((col (current-column))) (insert (format "\\begin{%s}\n" name)) (indent-to col) (save-excursion (insert ?\n) (indent-to col) (insert-string (format "\\end{%s}" name)) (if (eobp) (insert ?\n))))) (defun tex-last-unended-begin () "Leave point at the beginning of the last \\begin{...} that is unended." (while (and (re-search-backward "\$$\\\\begin\\s *{\$$\\|\$$\\\\end\\s *{\$$") (looking-at "\\\\end{")) (tex-last-unended-begin))) (defun tex-close-latex-block () "Creates an \\end{...} to match the last unclosed \\begin{...}." (interactive "*") (let ((new-line-needed (bolp)) text indentation) (save-excursion (condition-case ERR (tex-last-unended-begin) (error (error "Couldn't find unended \\begin"))) (setq indentation (current-column)) (re-search-forward "\\\\begin\$$\\s *{[^}\n]*}\$$") (setq text (buffer-substring (match-beginning 1) (match-end 1)))) (indent-to indentation) (insert "\\end" text) (if new-line-needed (insert ?\n)))) ;;; Invoking TeX in an inferior shell. ;;; Why use a shell instead of running TeX directly? Because if TeX ;;; gets stuck, the user can switch to the shell window and type at it. ;;; The utility functions: (defun tex-start-shell () (save-excursion (set-buffer (make-shell "tex-shell" nil nil "-v")) (setq tex-shell-map (copy-keymap shell-mode-map)) (tex-define-common-keys tex-shell-map) (use-local-map tex-shell-map) (run-hooks 'tex-shell-hook) (if (zerop (buffer-size)) (sleep-for 1)))) (defun set-buffer-directory (buffer directory) "Set BUFFER's default directory to be DIRECTORY." (setq directory (file-name-as-directory (expand-file-name directory))) (if (not (file-directory-p directory)) (error "%s is not a directory" directory) (save-excursion (set-buffer buffer) (setq default-directory directory)))) ;;; The commands: ;;; It's a kludge that we have to create a special buffer just ;;; to write out the tex-trailer. It would nice if there were a ;;; function like write-region that would write literal strings. (defun tex-region (beg end) "Run TeX on the current region, via a temporary file. The file's name comes from the variable tex-zap-file' and the variable tex-directory' says where to put it. If the buffer has a header, the header is given to TeX before the region itself. The buffer's header is all lines between the strings defined by tex-start-of-header' and tex-end-of-header' inclusive. The header must start in the first 100 lines of the buffer. The value of tex-trailer' is given to TeX as input after the region. The value of tex-command' specifies the command to use to run TeX." (interactive "r") (if (tex-shell-running) (tex-kill-job) (tex-start-shell)) (or tex-zap-file (setq tex-zap-file (tex-generate-zap-file-name))) (let ((tex-out-file (concat tex-zap-file ".tex")) (temp-buffer (get-buffer-create " TeX-Output-Buffer")) (file-dir (if (buffer-file-name) (file-name-directory (buffer-file-name)) default-directory)) (zap-directory (file-name-as-directory (expand-file-name tex-directory)))) ;; Delete any junk files or memory files from this temp file, ;; since the contents were probably different last time anyway. ;; This may also delete the old temp file if any. (let ((list (file-name-all-completions (tex-append tex-out-file ".") zap-directory))) (while list (delete-file (expand-file-name (car list) zap-directory)) (setq list (cdr list)))) ;; Write the new temp file. (save-excursion (save-restriction (widen) (goto-char (point-min)) (forward-line 100) (let ((search-end (point)) (hbeg (point-min)) (hend (point-min)) (default-directory zap-directory)) (goto-char (point-min)) ;; Initialize the temp file with either the header or nothing (if (search-forward tex-start-of-header search-end t) (progn (beginning-of-line) (setq hbeg (point)) ;mark beginning of header (if (search-forward tex-end-of-header nil t) (progn (forward-line 1) (setq hend (point))) ;mark end of header (setq hbeg (point-min))))) ;no header (write-region (min hbeg beg) hend tex-out-file nil nil) (write-region (max beg hend) end tex-out-file t nil)) (let ((local-tex-trailer tex-trailer)) (set-buffer temp-buffer) (erase-buffer) ;; make sure trailer isn't hidden by a comment (insert-string "\n") (if local-tex-trailer (insert-string local-tex-trailer)) (set-buffer-directory temp-buffer zap-directory) (write-region (point-min) (point-max) tex-out-file t nil)))) ;; Record in the shell buffer the file name to delete afterward. (save-excursion (set-buffer (get-buffer "*tex-shell*")) (make-local-variable 'tex-last-temp-file) (setq tex-last-temp-file tex-out-file)) (set-process-filter "tex-shell" 'tex-filter) (set-buffer-directory "*tex-shell*" zap-directory) ;; Run TeX in source file's dir, in case TEXINPUTS uses current dir. (send-string "tex-shell" (concat tex-shell-cd-command " " file-dir "\n")) (send-string "tex-shell" (concat tex-command " \"" zap-directory tex-out-file "\"\n"))) (setq tex-last-buffer-texed (current-buffer)) (setq tex-print-file (concat (file-name-as-directory (expand-file-name tex-directory)) tex-zap-file)) (tex-recenter-output-buffer 0)) ;; This filter is used in the TeX shell buffer ;; while TeX is running for a tex-region command. (defun tex-filter (process string) (let ((old (current-buffer))) (set-buffer (process-buffer proc)) (unwind-protect (progn (if (= (process-mark proc) (point-max)) (insert string) (save-excursion (goto-char (process-mark proc)) (insert string))) (set-marker (process-mark proc) (point)) ;; Delete the temporary file ;; when TeX finishes. ;; And stop using this filter. (save-excursion (forward-line -1) (if (looking-at "^Output written on ") (progn (set-process-filter process nil) ;; Delete the temp file just processed ;; and any related junk files made by TeX. (let ((list (file-name-all-completions (tex-append tex-last-temp-file ".") zap-directory))) (while list (delete-file (expand-file-name (car list) zap-directory)) (setq list (cdr list)))))))) (or (eq old (current-buffer)) (set-buffer old))))) (defun tex-buffer () "Run TeX on current buffer. See \\[tex-region] for more information. Does not save the buffer, so it's useful for trying experimental versions. See \\[tex-file] for an alternative." (interactive) (tex-region (point-min) (point-max))) (defun tex-file () "Prompt to save all buffers and run TeX (or LaTeX) on current buffer's file. This function is more useful than \\[tex-buffer] when you need the .aux' file of LaTeX to have the correct name." (interactive) (let ((tex-out-file (if (buffer-file-name) (file-name-nondirectory (buffer-file-name)) (error "Buffer does not seem to be associated with any file"))) (file-dir (file-name-directory (buffer-file-name)))) (save-some-buffers) (if (tex-shell-running) (tex-kill-job) (tex-start-shell)) (set-buffer-directory "*tex-shell*" file-dir) (send-string "tex-shell" (concat tex-shell-cd-command " " file-dir "\n")) (send-string "tex-shell" (concat tex-command " \"" tex-out-file "\"\n"))) (setq tex-last-buffer-texed (current-buffer)) (setq tex-print-file (buffer-file-name)) (tex-recenter-output-buffer 0)) (defun tex-generate-zap-file-name () "Generate a unique name suitable for use as a file name." ;; Include the shell process number and host name ;; in case there are multiple shells (for same or different user). (format "#tz%d%s" (process-id (get-buffer-process "*tex-shell*")) (tex-strip-dots (system-name)))) (defun tex-strip-dots (s) (setq s (copy-sequence s)) (while (string-match "\\." s) (aset s (match-beginning 0) ?-)) s) ;; This will perhaps be useful for modifying TEXINPUTS. ;; Expand each file name, separated by colons, in the string S. (defun tex-expand-files (s) (let (elts (start 0)) (while (string-match ":" s start) (setq elts (cons (substring s start (match-beginning 0)) elts)) (setq start (match-end 0))) (or (= start 0) (setq elts (cons (substring s start) elts))) (mapconcat 'expand-file-name (nreverse elts) ":"))) (defun tex-shell-running () (and (get-process "tex-shell") (eq (process-status (get-process "tex-shell")) 'run))) (defun tex-kill-job () "Kill the currently running TeX job." (interactive) (if (get-process "tex-shell") (quit-process "tex-shell" t))) (defun tex-recenter-output-buffer (linenum) "Redisplay buffer of TeX job output so that most recent output can be seen. The last line of the buffer is displayed on line LINE of the window, or centered if LINE is nil." (interactive "P") (let ((tex-shell (get-buffer "*tex-shell*")) (old-buffer (current-buffer))) (if (null tex-shell) (message "No TeX output buffer") (pop-to-buffer tex-shell) (bury-buffer tex-shell) (goto-char (point-max)) (recenter (if linenum (prefix-numeric-value linenum) (/ (window-height) 2))) (pop-to-buffer old-buffer) ))) (defun tex-print () "Print the .dvi file made by \\[tex-region], \\[tex-buffer] or \\[tex-file]. Runs the shell command defined by tex-dvi-print-command." (interactive) (let ((print-file-name-dvi (tex-append tex-print-file ".dvi")) test-name) (if (and (not (equal (current-buffer) tex-last-buffer-texed)) (file-newer-than-file-p (setq test-name (tex-append (buffer-file-name) ".dvi")) (tex-append tex-print-file ".dvi"))) (setq print-file-name-dvi test-name)) (if (file-exists-p print-file-name-dvi) (shell-command (concat tex-dvi-print-command " \"" print-file-name-dvi "&\"\n")) (error "No appropriate .dvi' file could be found")))) (defun tex-view () "Preview the last .dvi' file made by running TeX under Emacs. This means, made using \\[tex-region], \\[tex-buffer] or \\[tex-file]. The variable tex-dvi-view-command' specifies the shell command for preview." (interactive) (let ((tex-dvi-print-command tex-dvi-view-command)) (tex-print))) (defun tex-append (file-name suffix) "Append to FILENAME the suffix SUFFIX, using same algorithm TeX uses. Scans for the first (not last) period. No period is retained immediately before SUFFIX, so normally SUFFIX starts with one." (if (stringp file-name) (let ((file (file-name-nondirectory file-name))) (concat (file-name-directory file-name) (substring file 0 (string-match "\\." file)) suffix)) " ")) (defun tex-show-print-queue () "Show the print queue that \\[tex-print] put your job on. Runs the shell command defined by tex-show-queue-command." (interactive) (if (tex-shell-running) (tex-kill-job) (tex-start-shell)) (send-string "tex-shell" (concat tex-show-queue-command "\n")) (tex-recenter-output-buffer nil)) (defun tex-bibtex-file () "Run BibTeX on the current buffer's file." (interactive) (if (tex-shell-running) (tex-kill-job) (tex-start-shell)) (let ((tex-out-file (tex-append (file-name-nondirectory (buffer-file-name)) "")) (file-dir (file-name-directory (buffer-file-name)))) (set-buffer-directory "*tex-shell*" file-dir) (send-string "tex-shell" (concat tex-shell-cd-command " " file-dir "\n")) (send-string "tex-shell" (concat tex-bibtex-command " \"" tex-out-file "\"\n"))) (tex-recenter-output-buffer 0))  Jim Blandy committed Mar 16, 1992 805 806 (provide 'tex-mode)  Eric S. Raymond committed May 30, 1992 807 ;;; tex-mode.el ends here`