diff options
Diffstat (limited to 'system/doc/reference_manual')
| -rw-r--r-- | system/doc/reference_manual/introduction.xml | 13 | ||||
| -rw-r--r-- | system/doc/reference_manual/ports.xml | 13 |
2 files changed, 21 insertions, 5 deletions
diff --git a/system/doc/reference_manual/introduction.xml b/system/doc/reference_manual/introduction.xml index 3dac5cfe13..7737c34469 100644 --- a/system/doc/reference_manual/introduction.xml +++ b/system/doc/reference_manual/introduction.xml @@ -4,7 +4,7 @@ <chapter> <header> <copyright> - <year>2003</year><year>2009</year> + <year>2003</year><year>2012</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -150,6 +150,17 @@ </row> <tcaption>Character Classes.</tcaption> </table> + <p>In Erlang/OTP R16 the syntax of Erlang tokens was extended to + handle Unicode. To begin with the support is limited to strings, + but Erlang/OTP R18 is expected to handle Unicode atoms as well. + More about the usage of Unicode in Erlang source files can be + found in <seealso + marker="stdlib:unicode_usage#unicode_in_erlang">STDLIB's User'S + Guide</seealso>. The default encoding for Erlang source files + is still Latin-1, but in Erlang/OTP R17 the default encoding + will be UTF-8. The details on how to state the encoding of an + Erlang source file can be found in <seealso + marker="stdlib:epp#encoding">epp(3)</seealso>.</p> </section> </chapter> diff --git a/system/doc/reference_manual/ports.xml b/system/doc/reference_manual/ports.xml index 4847dd67cd..c4e4ef1d35 100644 --- a/system/doc/reference_manual/ports.xml +++ b/system/doc/reference_manual/ports.xml @@ -87,8 +87,14 @@ of bytes, the option <c>binary</c> must be included.</p> <p>The port owner <c>Pid</c> can communicate with the port <c>Port</c> by sending and receiving messages. (In fact, any - process can send the messages to the port, but the messages from - the port always go to the port owner).</p> + process can send the messages to the port, but the port owner must + be identified in the message).</p> + <p>As of OTP-R16 messages sent to ports are delivered truly + asynchronously. The underlying implementation previously + delivered messages to ports synchronously. Message passing has + however always been documented as an asynchronous operation, so + this should not be an issue for an Erlang program communicating + with ports, unless false assumptions about ports has been made.</p> <p>Below, <c>Data</c> must be an I/O list. An I/O list is a binary or a (possibly deep) list of binaries or integers in the range 0..255.</p> @@ -127,8 +133,7 @@ <tcaption>Messages Received From a Port.</tcaption> </table> <p>Instead of sending and receiving messages, there are also a - number of BIFs that can be used. These can be called by any - process, not only the port owner.</p> + number of BIFs that can be used.</p> <table> <row> <cell align="left" valign="middle"><c>port_command(Port,Data)</c></cell> |