diff options
Diffstat (limited to 'erts/doc/src/escript.xml')
| -rw-r--r-- | erts/doc/src/escript.xml | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/erts/doc/src/escript.xml b/erts/doc/src/escript.xml index d2b09d4515..1abbdb2180 100644 --- a/erts/doc/src/escript.xml +++ b/erts/doc/src/escript.xml @@ -4,7 +4,7 @@ <comref> <header> <copyright> - <year>2007</year><year>2013</year> + <year>2007</year><year>2014</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -92,6 +92,18 @@ $ <input>escript factorial 5</input> </pre> marker="stdlib:epp#encoding">encoding</seealso> it can be located on the second line.</p> + <note><p> + The encoding specified by the above mentioned comment + applies to the script itself. The encoding of the + I/O-server, however, has to be set explicitly like this: +<code>io:setopts([{encoding, unicode}])</code></p> + <p>The default encoding of the I/O-server for <c>standard_io</c> + is <c>latin1</c> + since the script runs in a non-interactive terminal + (see <seealso marker="stdlib:unicode_usage#unicode_options_summary"> + Using Unicode in Erlang</seealso>). + </p></note> + <p>On the third line (or second line depending on the presence of the Emacs directive), it is possible to give arguments to the emulator, such as </p> @@ -141,8 +153,9 @@ halt(1).</pre> -include_lib("kernel/include/file.hrl").</pre> <p>to include the record definitions for the records used by the <c>file:read_link_info/1</c> function. You can also select - encoding here, but if there is a valid encoding comment on - the second line it takes precedence.</p> + encoding by including a encoding comment here, but if there + is a valid encoding comment on the second line it takes + precedence.</p> <p>The script will be checked for syntactic and semantic correctness before being run. If there are warnings (such as @@ -163,7 +176,7 @@ halt(1).</pre> If much of the execution takes place in interpreted code it may be worthwhile to compile it, even though the compilation itself will take a little while. It is also possible to supply - <c>native</c> instead of compile, this will compile the script + <c>native</c> instead of <c>compile</c>, this will compile the script using the native flag, again depending on the characteristics of the escript this could or could not be worth while.</p> @@ -239,7 +252,7 @@ factorial 5 = 120 can either be returned as a binary or written to file.</p> <p>As an example of how the function can be used, we create an - interpreted escript which uses emu_args to set some emulator + interpreted escript which uses <c>emu_args</c> to set some emulator flag. In this case it happens to disable the smp_support. We do also extract the different sections from the newly created script:</p> |