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-rw-r--r--lib/stdlib/doc/src/filename.xml64
1 files changed, 53 insertions, 11 deletions
diff --git a/lib/stdlib/doc/src/filename.xml b/lib/stdlib/doc/src/filename.xml
index 1135a6dd80..36254c2d00 100644
--- a/lib/stdlib/doc/src/filename.xml
+++ b/lib/stdlib/doc/src/filename.xml
@@ -46,7 +46,10 @@
filename by removing redundant directory separators, use
<seealso marker="#join/1"><c>join/1</c></seealso>.</p>
- <p>The module supports raw filenames in the way that if a binary is
+ <p>
+ The module supports
+ <seealso marker="unicode_usage#notes-about-raw-filenames">raw
+ filenames</seealso> in the way that if a binary is
present, or the filename cannot be interpreted according to the return
value of <seealso marker="kernel:file#native_name_encoding/0">
<c>file:native_name_encoding/0</c></seealso>, a raw filename is also
@@ -56,12 +59,31 @@
(the join operation is performed of course). For more information
about raw filenames, see the
<seealso marker="kernel:file"><c>file</c></seealso> module.</p>
+
+ <note>
+ <p>
+ Functionality in this module generally assumes valid input and
+ does not necessarily fail on input that does not use a valid
+ encoding, but may instead very likely produce invalid output.
+ </p>
+ <p>
+ File operations used to accept filenames containing
+ null characters (integer value zero). This caused
+ the name to be truncated and in some cases arguments
+ to primitive operations to be mixed up. Filenames
+ containing null characters inside the filename
+ are now <em>rejected</em> and will cause primitive
+ file operations to fail.
+ </p>
+ </note>
+ <warning><p>
+ Currently null characters at the end of the filename
+ will be accepted by primitive file operations. Such
+ filenames are however still documented as invalid. The
+ implementation will also change in the future and
+ reject such filenames.
+ </p></warning>
</description>
- <datatypes>
- <datatype>
- <name name="basedir_type"/>
- </datatype>
- </datatypes>
<funcs>
<func>
@@ -122,18 +144,37 @@
</func>
<func>
- <name name="basedir" arity="2"/>
- <fsummary>Equivalent to <c>basedir(<anno>Type</anno>,<anno>Application</anno>,#{})</c>.</fsummary>
+ <name name="basedir" arity="2" clause_i="1"/>
+ <name name="basedir" arity="2" clause_i="2"/>
+ <fsummary>Equivalent to <c>basedir(<anno>PathType</anno>,
+ <anno>Application</anno>,#{})</c> or
+ <c>basedir(<anno>PathsType</anno>, <anno>Application</anno>,#{})</c>.
+ </fsummary>
+ <type variable="PathType" name_i="1"/>
+ <type name="basedir_path_type"/>
+ <type variable="PathsType" name_i="2"/>
+ <type name="basedir_paths_type"/>
+ <type variable="Application"/>
<desc>
<p>
- Equivalent to <seealso marker="#basedir-3">
- basedir(<anno>Type</anno>, <anno>Application</anno>, #{})</seealso>.
+ Equivalent to <seealso marker="#basedir_3_1">
+ basedir(<anno>PathType</anno>, <anno>Application</anno>, #{})</seealso>
+ or <seealso marker="#basedir_3_2">
+basedir(<anno>PathsType</anno>, <anno>Application</anno>, #{})</seealso>.
</p>
</desc>
</func>
<func>
- <name name="basedir" arity="3"/>
+ <name name="basedir" arity="3" clause_i="1" anchor="basedir_3_1"/>
+ <name name="basedir" arity="3" clause_i="2" anchor="basedir_3_2"/>
<fsummary></fsummary>
+ <type variable="PathType" name_i="1"/>
+ <type name="basedir_path_type"/>
+ <type variable="PathsType" name_i="2"/>
+ <type name="basedir_paths_type"/>
+ <type variable="Application"/>
+ <type variable="Opts"/>
+ <type name="basedir_opts"/>
<desc><marker id="basedir-3"/>
<p>
Returns a suitable path, or paths, for a given type. If
@@ -558,6 +599,7 @@ unsafe</pre>
["a:/","msdev","include"]</pre>
</desc>
</func>
+
</funcs>
</erlref>