diff options
| -rw-r--r-- | lisp/ChangeLog | 5 | ||||
| -rw-r--r-- | lisp/progmodes/ebnf2ps.el | 95 |
2 files changed, 53 insertions, 47 deletions
diff --git a/lisp/ChangeLog b/lisp/ChangeLog index 6a48cd0e90..ab9461d726 100644 --- a/lisp/ChangeLog +++ b/lisp/ChangeLog @@ -1,3 +1,8 @@ +2004-03-30 Vinicius Jose Latorre <[email protected]> + + * progmodes/ebnf2ps.el (ebnf-eps-finish-and-write): Write a buffer if + and only if the buffer was modified. + 2004-03-30 Kenichi Handa <[email protected]> * international/characters.el: Delete pairs for U+2308..U+230B. diff --git a/lisp/progmodes/ebnf2ps.el b/lisp/progmodes/ebnf2ps.el index fa4e46677b..56125cbea5 100644 --- a/lisp/progmodes/ebnf2ps.el +++ b/lisp/progmodes/ebnf2ps.el @@ -5,7 +5,7 @@ ;; Author: Vinicius Jose Latorre <[email protected]> ;; Maintainer: Vinicius Jose Latorre <[email protected]> -;; Time-stamp: <2004/03/28 19:56:21 vinicius> +;; Time-stamp: <2004/03/30 21:49:21 vinicius> ;; Keywords: wp, ebnf, PostScript ;; Version: 4.1 ;; X-URL: http://www.cpqd.com.br/~vinicius/emacs/ @@ -4762,52 +4762,53 @@ killed after process termination." (defun ebnf-eps-finish-and-write (buffer filename) - (save-excursion - (set-buffer buffer) - (setq ebnf-eps-upper-x (max ebnf-eps-upper-x ebnf-eps-max-width) - ebnf-eps-upper-y (if (zerop ebnf-eps-upper-y) - ebnf-eps-max-height - (+ ebnf-eps-upper-y - ebnf-production-vertical-space - ebnf-eps-max-height))) - ;; prologue - (goto-char (point-min)) - (insert - "%!PS-Adobe-3.0 EPSF-3.0" - "\n%%BoundingBox: 0 0 " - (format "%d %d" (1+ ebnf-eps-upper-x) (1+ ebnf-eps-upper-y)) - "\n%%Title: " filename - "\n%%CreationDate: " (format-time-string "%T %b %d %Y") - "\n%%Creator: " (user-full-name) " (using ebnf2ps v" ebnf-version ")" - "\n%%DocumentNeededResources: font " - (or ebnf-fonts-required - (setq ebnf-fonts-required - (mapconcat 'identity - (ps-remove-duplicates - (mapcar 'ebnf-font-name-select - (list ebnf-production-font - ebnf-terminal-font - ebnf-non-terminal-font - ebnf-special-font - ebnf-except-font - ebnf-repeat-font))) - "\n%%+ font "))) - "\n%%Pages: 0\n%%EndComments\n\n%%BeginProlog\n" - ebnf-eps-prologue) - (ebnf-insert-ebnf-prologue) - (insert ebnf-eps-begin - "\n0 " (ebnf-format-float - (- ebnf-eps-upper-y (* ebnf-font-height-P 0.7))) - " #ebnf2ps#begin\n") - ;; epilogue - (goto-char (point-max)) - (insert ebnf-eps-end) - ;; write file - (message "Saving...") - (setq filename (expand-file-name filename)) - (let ((coding-system-for-write 'raw-text-unix)) - (write-region (point-min) (point-max) filename)) - (message "Wrote %s" filename))) + (when (buffer-modified-p buffer) + (save-excursion + (set-buffer buffer) + (setq ebnf-eps-upper-x (max ebnf-eps-upper-x ebnf-eps-max-width) + ebnf-eps-upper-y (if (zerop ebnf-eps-upper-y) + ebnf-eps-max-height + (+ ebnf-eps-upper-y + ebnf-production-vertical-space + ebnf-eps-max-height))) + ;; prologue + (goto-char (point-min)) + (insert + "%!PS-Adobe-3.0 EPSF-3.0" + "\n%%BoundingBox: 0 0 " + (format "%d %d" (1+ ebnf-eps-upper-x) (1+ ebnf-eps-upper-y)) + "\n%%Title: " filename + "\n%%CreationDate: " (format-time-string "%T %b %d %Y") + "\n%%Creator: " (user-full-name) " (using ebnf2ps v" ebnf-version ")" + "\n%%DocumentNeededResources: font " + (or ebnf-fonts-required + (setq ebnf-fonts-required + (mapconcat 'identity + (ps-remove-duplicates + (mapcar 'ebnf-font-name-select + (list ebnf-production-font + ebnf-terminal-font + ebnf-non-terminal-font + ebnf-special-font + ebnf-except-font + ebnf-repeat-font))) + "\n%%+ font "))) + "\n%%Pages: 0\n%%EndComments\n\n%%BeginProlog\n" + ebnf-eps-prologue) + (ebnf-insert-ebnf-prologue) + (insert ebnf-eps-begin + "\n0 " (ebnf-format-float + (- ebnf-eps-upper-y (* ebnf-font-height-P 0.7))) + " #ebnf2ps#begin\n") + ;; epilogue + (goto-char (point-max)) + (insert ebnf-eps-end) + ;; write file + (message "Saving...") + (setq filename (expand-file-name filename)) + (let ((coding-system-for-write 'raw-text-unix)) + (write-region (point-min) (point-max) filename)) + (message "Wrote %s" filename)))) (defun ebnf-insert-ebnf-prologue () |