From bdbfe3bfd60b514733b77cfd7debe66e1b3a60f8 Mon Sep 17 00:00:00 2001 From: Chong Yidong Date: Mon, 16 Apr 2007 19:40:14 +0000 Subject: [PATCH] (archive-lzh-summarize): Only apply the "downcase if all upcase" rule to OS-ID 0 "generic". Always downcase for OS-ID M "MSDOS". --- lisp/arc-mode.el | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/lisp/arc-mode.el b/lisp/arc-mode.el index 1b0f3a3d584..8630d3e8b06 100644 --- a/lisp/arc-mode.el +++ b/lisp/arc-mode.el @@ -1415,7 +1415,7 @@ This doesn't recover lost files, it just undoes changes in the buffer itself." (time2 (archive-l-e (+ p 17) 2)) ;and UNIX format in level 2 header.) (hdrlvl (char-after (+ p 20))) ;header level thsize ;total header size (base + extensions) - fnlen efnname fiddle ifnname width p2 + fnlen efnname osid fiddle ifnname width p2 neh ;beginning of next extension header (level 1 and 2) mode modestr uid gid text dir prname gname uname modtime moddate) @@ -1474,7 +1474,22 @@ This doesn't recover lost files, it just undoes changes in the buffer itself." (setq thsize (- neh p)))) (if (= hdrlvl 0) ;total header size (setq thsize hsize)) - (setq fiddle (if efnname (string= efnname (upcase efnname)))) + ;; OS ID field not present in level 0 header, use code 0 "generic" + ;; in that case as per lha program header.c get_header() + (setq osid (cond ((= hdrlvl 0) 0) + ((= hdrlvl 1) (char-after (+ p 22 fnlen 2))) + ((= hdrlvl 2) (char-after (+ p 23))))) + ;; Filename fiddling must follow the lha program, otherwise the name + ;; passed to "lha pq" etc won't match (which for an extract silently + ;; results in no output). As of version 1.14i it goes from the OS ID, + ;; - For 'M' MSDOS: msdos_to_unix_filename() downcases always, and + ;; converts "\" to "/". + ;; - For 0 generic: generic_to_unix_filename() downcases if there's + ;; no lower case already present, and converts "\" to "/". + ;; - For 'm' MacOS: macos_to_unix_filename() changes "/" to ":" and + ;; ":" to "/" + (setq fiddle (cond ((= ?M osid) t) + ((= 0 osid) (string= efnname (upcase efnname))))) (setq ifnname (if fiddle (downcase efnname) efnname)) (setq prname (if dir (concat dir ifnname) ifnname)) (setq width (if prname (string-width prname) 0)) -- 2.39.5