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authorBjörn Gustavsson <[email protected]>2015-11-27 15:53:23 +0100
committerBjörn Gustavsson <[email protected]>2015-12-16 15:52:26 +0100
commit07c69ccb45b5d39493cdc830ee78fe3ec0f3d973 (patch)
tree1917520675c09239ab6442cfa53b6ba928324382 /erts/preloaded/src/erl_prim_loader.erl
parente2e49ee0b0292da4a48d90ed762d7df0b3a64f78 (diff)
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erl_prim_loader: Clean up splitting of filenames
Diffstat (limited to 'erts/preloaded/src/erl_prim_loader.erl')
-rw-r--r--erts/preloaded/src/erl_prim_loader.erl55
1 files changed, 27 insertions, 28 deletions
diff --git a/erts/preloaded/src/erl_prim_loader.erl b/erts/preloaded/src/erl_prim_loader.erl
index 041b54ee0d..dbb658c904 100644
--- a/erts/preloaded/src/erl_prim_loader.erl
+++ b/erts/preloaded/src/erl_prim_loader.erl
@@ -1205,24 +1205,15 @@ path_join([Path|Paths],Acc) ->
name_split(ArchiveFile, File0) ->
File = absname(File0),
do_name_split(ArchiveFile, File).
-
+
do_name_split(undefined, File) ->
%% Ignore primary archive
- case string_split(File, init:archive_extension(), []) of
+ RevExt = reverse(init:archive_extension()),
+ case archive_split(File, RevExt, []) of
no_split ->
- %% Plain file
{file, File};
- {split, _RevArchiveBase, RevArchiveFile, []} ->
- %% Top dir in archive
- ArchiveFile = reverse(RevArchiveFile),
- {archive, ArchiveFile, []};
- {split, _RevArchiveBase, RevArchiveFile, [$/ | FileInArchive]} ->
- %% File in archive
- ArchiveFile = reverse(RevArchiveFile),
- {archive, ArchiveFile, FileInArchive};
- {split, _RevArchiveBase, _RevArchiveFile, _FileInArchive} ->
- %% False match. Assume plain file
- {file, File}
+ Archive ->
+ Archive
end;
do_name_split(ArchiveFile, File) ->
%% Look first in primary archive
@@ -1244,20 +1235,28 @@ string_match([$/ | File], [], RevTop) ->
string_match(_File, _Archive, _RevTop) ->
no_match.
-string_split([Char | File], [Char | Ext] = FullExt, RevTop) ->
- RevTop2 = [Char | RevTop],
- string_split2(File, Ext, RevTop, RevTop2, File, FullExt, RevTop2);
-string_split([Char | File], Ext, RevTop) ->
- string_split(File, Ext, [Char | RevTop]);
-string_split([], _Ext, _RevTop) ->
- no_split.
-
-string_split2([Char | File], [Char | Ext], RevBase, RevTop, SaveFile, SaveExt, SaveTop) ->
- string_split2(File, Ext, RevBase, [Char | RevTop], SaveFile, SaveExt, SaveTop);
-string_split2(File, [], RevBase, RevTop, _SaveFile, _SaveExt, _SaveTop) ->
- {split, RevBase, RevTop, File};
-string_split2(_, _Ext, _RevBase, _RevTop, SaveFile, SaveExt, SaveTop) ->
- string_split(SaveFile, SaveExt, SaveTop).
+archive_split("/"++File, RevExt, Acc) ->
+ case is_prefix(RevExt, Acc) of
+ false ->
+ archive_split(File, RevExt, [$/|Acc]);
+ true ->
+ ArchiveFile = reverse(Acc),
+ {archive, ArchiveFile, File}
+ end;
+archive_split([H|T], RevExt, Acc) ->
+ archive_split(T, RevExt, [H|Acc]);
+archive_split([], RevExt, Acc) ->
+ case is_prefix(RevExt, Acc) of
+ false ->
+ no_split;
+ true ->
+ ArchiveFile = reverse(Acc),
+ {archive, ArchiveFile, []}
+ end.
+
+is_prefix([H|T1], [H|T2]) -> is_prefix(T1, T2);
+is_prefix([_|_], _) -> false;
+is_prefix([], _ ) -> true.
%% Parse list of ipv4 addresses
ipv4_list([H | T]) ->