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Juri Linkov authored
* lisp/vc/diff-mode.el (diff-font-lock-syntax): New defcustom. (diff-default-directory): New buffer-local variable. (diff-indicator-removed, diff-indicator-added) (diff-indicator-changed): Set foreground to distinctive colors. (diff-context): Remove colors to make room for syntax highlighting. (diff-font-lock-keywords): Add diff--font-lock-syntax. (diff--font-lock-cleanup): Remove diff-mode syntax overlays. (diff--font-lock-syntax, diff--font-lock-syntax--refresh) (diff-syntax-fontify-revisions, diff-syntax-fontify-hunk) (diff-syntax-fontify-props): New functions. * lisp/vc/diff.el (diff-no-select): Set diff-default-directory to default-directory. * doc/emacs/files.texi (Diff Mode): Document diff-font-lock-syntax.
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