From 300c5466a7c9cfe3ed22bba2a88ba21058406402 Mon Sep 17 00:00:00 2001
From: Hans Bolinder
Date: Thu, 4 Oct 2012 15:58:26 +0200
Subject: [stdlib, kernel] Introduce Unicode support for Erlang source files
Expect modifications, additions and corrections.
There is a kludge in file_io_server and
erl_scan:continuation_location() that's not so pleasing.
---
lib/stdlib/doc/src/epp.xml | 59 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 59 insertions(+)
(limited to 'lib/stdlib/doc/src/epp.xml')
diff --git a/lib/stdlib/doc/src/epp.xml b/lib/stdlib/doc/src/epp.xml
index 386ed89fe1..3e8aba2e5f 100644
--- a/lib/stdlib/doc/src/epp.xml
+++ b/lib/stdlib/doc/src/epp.xml
@@ -37,6 +37,18 @@
The Erlang code preprocessor includes functions which are used
by compile to preprocess macros and include files before
the actual parsing takes place.
+ The Erlang source file encoding is selected by a
+ comment in one of the first two lines of the source file. The
+ first string that matches the regular expression
+ coding\s*[:=]\s*([-a-zA-Z0-9])+ selects the encoding. If
+ the matching string is not a valid encoding it is ignored. The
+ valid encodings are Latin-1 and UTF-8 where the
+ case of the characters can be chosen freely. Examples:
+
+%% coding: utf-8
+%% For this file we have chosen encoding = Latin-1
+%% -*- coding: latin-1 -*-
@@ -46,6 +58,9 @@
Handle to the epp server.
+
+
+
@@ -82,6 +97,50 @@
included as a "form".
+
+
+ Return the default encoding of Erlang source files
+
+ Returns the default encoding of Erlang source files.
+
+
+
+
+ Return a string representation of an encoding
+
+ Returns a string representation of an encoding. The string
+ is recognized by read_encoding/1,2 and
+ set_encoding/1 as a valid encoding.
+
+
+
+
+
+ Read the encoding from a file
+
+ Read the encoding from
+ a file. Returns the read encoding, or none if no
+ valid encoding was found.
+ The option in_comment_only is true by
+ default, which is correct for Erlang source files. If set to
+ false the encoding string does not necessarily have to
+ occur in a comment.
+
+
+
+
+ Read and set the encoding of an IO device
+
+ Reads the encoding from
+ an IO device and sets the encoding of the device
+ accordingly. The position of the IO device referenced by
+ File is not affected. If no valid
+ encoding can be read from the IO device the encoding of the
+ IO device is set to the default encoding.
+ Returns the read encoding, or none if no valid
+ encoding was found.
+
+
Format an error descriptor
--
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