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author | Michael Kifer <kifer@cs.stonybrook.edu> | 1999-11-25 04:34:23 +0000 |
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committer | Michael Kifer <kifer@cs.stonybrook.edu> | 1999-11-25 04:34:23 +0000 |
commit | 5db080cfc2f659ba0120e8ab0dd760a23e9ef15e (patch) | |
tree | b7a33b2a4b79ade780cb9d89ecea262dfaa8d3ff /lisp/ediff-merg.el | |
parent | af8eac4da47cf30cc278bfc3466f236f465a26fb (diff) | |
download | emacs-5db080cfc2f659ba0120e8ab0dd760a23e9ef15e.tar.gz |
*** empty log message ***
Diffstat (limited to 'lisp/ediff-merg.el')
-rw-r--r-- | lisp/ediff-merg.el | 122 |
1 files changed, 78 insertions, 44 deletions
diff --git a/lisp/ediff-merg.el b/lisp/ediff-merg.el index 887e47d5ff2..a8752ff52a1 100644 --- a/lisp/ediff-merg.el +++ b/lisp/ediff-merg.el @@ -57,17 +57,24 @@ Valid values are the symbols `default-A', `default-B', and `combined'." :group 'ediff-merge) (defcustom ediff-combination-pattern - '("<<<<<<<<<<<<<< variant A" ">>>>>>>>>>>>>> variant B" "======= end of combination") + '("<<<<<<< variant A" A ">>>>>>> variant B" B "####### Ancestor" Ancestor "======= end") "*Pattern to be used for combining difference regions in buffers A and B. -The value is (STRING1 STRING2 STRING3). The combined text will look like this: +The value must be a list of the form +(STRING1 bufspec1 STRING2 bufspec2 STRING3 bufspec3 STRING4) +where bufspec is the symbol A, B, or Ancestor. For instance, if the value is +'(STRING1 A STRING2 Ancestor STRING3 B STRING4) then the +combined text will look like this: STRING1 diff region from variant A STRING2 -diff region from variant B +diff region from the ancestor STRING3 +diff region from variant B +STRING4 " - :type '(list string string string) + :type '(choice (list string symbol string symbol string) + (list string symbol string symbol string symbol string)) :group 'ediff-merge) (defcustom ediff-show-clashes-only nil @@ -108,20 +115,44 @@ Buffer B." (ediff-merge-changed-from-default-p n 'prefers-too))) - -(defsubst ediff-get-combined-region (n) - (concat (nth 0 ediff-combination-pattern) "\n" - (ediff-get-region-contents n 'A ediff-control-buffer) - (nth 1 ediff-combination-pattern) "\n" - (ediff-get-region-contents n 'B ediff-control-buffer) - (nth 2 ediff-combination-pattern) "\n")) - -(defsubst ediff-make-combined-diff (regA regB) - (concat (nth 0 ediff-combination-pattern) "\n" - regA - (nth 1 ediff-combination-pattern) "\n" - regB - (nth 2 ediff-combination-pattern) "\n")) +(defun ediff-get-combined-region (n) + (let ((pattern-list ediff-combination-pattern) + (combo-region "") + (err-msg + "ediff-combination-pattern: Invalid format. Please consult the documentation") + diff-region region-delim region-spec) + + (if (< (length pattern-list) 5) + (error err-msg)) + + (while (> (length pattern-list) 2) + (setq region-delim (nth 0 pattern-list) + region-spec (nth 1 pattern-list)) + (or (and (stringp region-delim) (memq region-spec '(A B Ancestor))) + (error err-msg)) + + (condition-case err + (setq combo-region + (concat combo-region + region-delim "\n" + (ediff-get-region-contents + n region-spec ediff-control-buffer))) + (error "")) + (setq pattern-list (cdr (cdr pattern-list))) + ) + + (setq region-delim (nth 0 pattern-list)) + (or (stringp region-delim) + (error err-msg)) + (setq combo-region (concat combo-region region-delim "\n")) + )) + +;;(defsubst ediff-make-combined-diff (regA regB) +;; (concat (nth 0 ediff-combination-pattern) "\n" +;; regA +;; (nth 1 ediff-combination-pattern) "\n" +;; regB +;; (nth 2 ediff-combination-pattern) "\n")) (defsubst ediff-set-state-of-all-diffs-in-all-buffers (ctl-buf) (let ((n 0)) @@ -275,10 +306,10 @@ Combining is done according to the specifications in variable (setq n (if (numberp n) (1- n) ediff-current-difference)) (let (regA regB reg-combined) - (setq regA (ediff-get-region-contents n 'A ediff-control-buffer) - regB (ediff-get-region-contents n 'B ediff-control-buffer)) - - (setq reg-combined (ediff-make-combined-diff regA regB)) + ;;(setq regA (ediff-get-region-contents n 'A ediff-control-buffer) + ;; regB (ediff-get-region-contents n 'B ediff-control-buffer)) + ;;(setq reg-combined (ediff-make-combined-diff regA regB)) + (setq reg-combined (ediff-get-combined-region n)) (ediff-copy-diff n nil 'C batch-invocation reg-combined)) (or batch-invocation (ediff-jump-to-difference (1+ n)))) @@ -286,36 +317,38 @@ Combining is done according to the specifications in variable ;; Checks if the region in buff C looks like a combination of the regions ;; in buffers A and B. Return a list (reg-a-beg reg-a-end reg-b-beg reg-b-end) -;; These refer to where the copies of region A and B start and end in buffer C +;; These refer to where the delimiters for region A, B, Ancestor start and end +;; in buffer C (defun ediff-looks-like-combined-merge (region-num) (if ediff-merge-job (let ((combined (string-match (regexp-quote "(A+B)") (or (ediff-get-state-of-diff region-num 'C) ""))) - (reg-beg (ediff-get-diff-posn 'C 'beg region-num)) - (reg-end (ediff-get-diff-posn 'C 'end region-num)) - (pat1 (nth 0 ediff-combination-pattern)) - (pat2 (nth 1 ediff-combination-pattern)) - (pat3 (nth 2 ediff-combination-pattern)) - reg-a-beg reg-a-end reg-b-beg reg-b-end reg-c-beg reg-c-end) + (mrgreg-beg (ediff-get-diff-posn 'C 'beg region-num)) + (mrgreg-end (ediff-get-diff-posn 'C 'end region-num)) + (pattern-list ediff-combination-pattern) + delim reg-beg reg-end delim-regs-list) (if combined (ediff-with-current-buffer ediff-buffer-C - (goto-char reg-beg) - (search-forward pat1 reg-end 'noerror) - (setq reg-a-beg (match-beginning 0)) - (setq reg-a-end (match-end 0)) - (search-forward pat2 reg-end 'noerror) - (setq reg-b-beg (match-beginning 0)) - (setq reg-b-end (match-end 0)) - (search-forward pat3 reg-end 'noerror) - (setq reg-c-beg (match-beginning 0)) - (setq reg-c-end (match-end 0)))) - - (if (and reg-a-beg reg-a-end reg-b-beg reg-b-end) - (list reg-a-beg reg-a-end reg-b-beg reg-b-end reg-c-beg reg-c-end)) + (while pattern-list + (goto-char mrgreg-beg) + (setq delim (nth 0 pattern-list)) + (search-forward delim mrgreg-end 'noerror) + (setq reg-beg (match-beginning 0)) + (setq reg-end (match-end 0)) + (if (and reg-beg reg-end) + (setq delim-regs-list + ;; in reverse + (cons reg-end (cons reg-beg delim-regs-list)))) + (if (> (length pattern-list) 1) + (setq pattern-list (cdr (cdr pattern-list))) + (setq pattern-list nil)) + ))) + + (reverse delim-regs-list) ))) - + ;; Check if the non-preferred merge has been modified since originally set. ;; This affects only the regions that are marked as default-A/B or combined. @@ -334,7 +367,8 @@ Combining is done according to the specifications in variable (and (string= state-of-merge "default-B") (not (string= reg-B reg-C))) (and (string= state-of-merge "combined") - (not (string= (ediff-make-combined-diff reg-A reg-B) reg-C))) + ;;(not (string= (ediff-make-combined-diff reg-A reg-B) reg-C))) + (not (string= (ediff-get-combined-region diff-num) reg-C))) (and prefers-too (string= state-of-merge "prefer-A") (not (string= reg-A reg-C))) |