diff options
Diffstat (limited to 'lib/kernel/doc')
| -rw-r--r-- | lib/kernel/doc/src/os.xml | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/kernel/doc/src/os.xml b/lib/kernel/doc/src/os.xml index e94119845a..09c525b376 100644 --- a/lib/kernel/doc/src/os.xml +++ b/lib/kernel/doc/src/os.xml @@ -80,6 +80,10 @@ DirOut = os:cmd("dir"), % on Win32 platform</code> Each environment variable is given as a single string on the format <c>"VarName=Value"</c>, where <c>VarName</c> is the name of the variable and <c>Value</c> its value.</p> + <p>If Unicode file name encoding is in effect (see the <seealso + marker="erts:erl#file_name_encoding">erl manual + page</seealso>), the strings may contain characters with + codepoints > 255.</p> </desc> </func> <func> @@ -93,6 +97,10 @@ DirOut = os:cmd("dir"), % on Win32 platform</code> <p>Returns the <c>Value</c> of the environment variable <c>VarName</c>, or <c>false</c> if the environment variable is undefined.</p> + <p>If Unicode file name encoding is in effect (see the <seealso + marker="erts:erl#file_name_encoding">erl manual + page</seealso>), the strings (both <c>VarName</c> and + <c>Value</c>) may contain characters with codepoints > 255.</p> </desc> </func> <func> @@ -123,6 +131,13 @@ DirOut = os:cmd("dir"), % on Win32 platform</code> <desc> <p>Sets a new <c>Value</c> for the environment variable <c>VarName</c>.</p> + <p>If Unicode filename encoding is in effect (see the <seealso + marker="erts:erl#file_name_encoding">erl manual + page</seealso>), the strings (both <c>VarName</c> and + <c>Value</c>) may contain characters with codepoints > 255.</p> + <p>On Unix platforms, the environment will be set using UTF-8 encoding + if Unicode file name translation is in effect. On Windows the + environment is set using wide character interfaces.</p> </desc> </func> <func> |