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authorJosé Valim <[email protected]>2014-02-27 12:41:53 +0100
committerJosé Valim <[email protected]>2014-03-10 16:33:40 -0700
commitb45af5f9608d5dc79a5f201afdcc9a7e28e7ba83 (patch)
treee29a75437513104f820f3ad84b76fd7cf01fc0af /lib
parent8acc644e162bad52f7ab81c76c0cad15628e4f3d (diff)
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Correct file:set_cwd/1 typespec
file:set_cwd/1 accepts binaries as arguments, however the binaries must be properly encoded as per file:native_name_encoding/0. Also update the note under no_translation error to refer that passing a ISO-latin-1 encoded binary under any unicode file name encoding.
Diffstat (limited to 'lib')
-rw-r--r--lib/kernel/doc/src/file.xml9
-rw-r--r--lib/kernel/src/file.erl3
2 files changed, 9 insertions, 3 deletions
diff --git a/lib/kernel/doc/src/file.xml b/lib/kernel/doc/src/file.xml
index 66ecba1bf2..71db9b66bd 100644
--- a/lib/kernel/doc/src/file.xml
+++ b/lib/kernel/doc/src/file.xml
@@ -1622,6 +1622,11 @@
<desc>
<p>Sets the current working directory of the file server to
<c><anno>Dir</anno></c>. Returns <c>ok</c> if successful.</p>
+ <p>The functions in the <c>file</c> module usually treat binaries
+ as raw filenames, i.e. they are passed as is even when the encoding
+ of the binary does not agree with <c>file:native_name_encoding()</c>.
+ This function however expects binaries to be encoded according to the
+ value returned by <c>file:native_name_encoding()</c>.</p>
<p>Typical error reasons are:</p>
<taglist>
<tag><c>enoent</c></tag>
@@ -1646,8 +1651,8 @@
<tag><c>no_translation</c></tag>
<item>
<p><c><anno>Dir</anno></c> is a <c>binary()</c> with
- characters coded in ISO-latin-1 and the VM was started
- with the parameter <c>+fnue</c>.</p>
+ characters coded in ISO-latin-1 and the VM is operating
+ with unicode file name encoding.</p>
</item>
</taglist>
<warning>
diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl
index 36289053eb..5467175654 100644
--- a/lib/kernel/src/file.erl
+++ b/lib/kernel/src/file.erl
@@ -197,7 +197,8 @@ get_cwd(Drive) ->
check_and_call(get_cwd, [file_name(Drive)]).
-spec set_cwd(Dir) -> ok | {error, Reason} when
- Dir :: name(),
+ Dir :: name() | EncodedBinary,
+ EncodedBinary :: binary(),
Reason :: posix() | badarg | no_translation.
set_cwd(Dirname) ->