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Diffstat (limited to 'lisp/files.el')
| -rw-r--r-- | lisp/files.el | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lisp/files.el b/lisp/files.el index c05d70a00ec..47ee197536e 100644 --- a/lisp/files.el +++ b/lisp/files.el @@ -842,6 +842,32 @@ output directories whose names match REGEXP." (push (expand-file-name file dir) files))))) (nconc result (nreverse files)))) +(defun path-files (path &optional pred) + "Return a list of all files matching PRED in PATH. +PATH is flat; no subdirectories of entries in PATH are +visited (unless they are also in PATH). PRED is a function +taking one argument; an absolute file name." + (let (visited ;; list of already visited directories, to avoid duplication + result) + (dolist (dir path) + (while (member dir visited) + (setq dir (pop path))) + (when (and dir + (file-directory-p dir)) + (push dir visited) + (mapc + (lambda (rel-file) + (let ((absfile (concat (file-name-as-directory dir) rel-file))) + (when (and (not (string-equal "." (substring absfile -1))) + (not (string-equal ".." (substring absfile -2))) + (not (file-directory-p absfile)) + (or (null pred) + (funcall pred absfile))) + (push absfile result)))) + (file-name-all-completions "" dir));; uses completion-regexp-list + )) + result)) + (defvar module-file-suffix) (defun load-file (file) |