Null flush - Revision history

Unhammer at 18:29, 18 October 2016

2016-10-18T18:29:57Z

Rcrowther at 16:32, 26 September 2016

2016-09-26T16:32:57Z

Unhammer: /* Testing */

2014-01-20T08:42:40Z

Testing

Unhammer: /* Testing */

2014-01-20T08:42:25Z

Testing

Unhammer: make it actually work

2014-01-20T08:41:24Z

make it actually work

Tino Didriksen: Added test one-liner

2014-01-20T08:24:55Z

Added test one-liner

Unhammer at 15:04, 15 January 2014

2014-01-15T15:04:52Z

Francis Tyers: Created page with ''''Null flush''' is an option (`-z`) to most Apertium programs (and programs compatible with Apertium stream format) that flushes the output buffer upon receiving …'

2011-12-29T16:24:41Z

Created page with ''''Null flush''' is an option (<code>-z</code>) to most Apertium programs (and programs compatible with Apertium stream format) that flushes the output buffer upon receiving …'

New page

'''Null flush''' is an option (<code>-z</code>) to most Apertium programs (and programs compatible with [[Apertium stream format]]) that flushes the output buffer upon receiving the <code>\0</code> character instead of on end-of-file. This allows programs which call Apertium externally to keep a translator online, meaning they can avoid startup time for every translation.

[[Category:Terminology]]

@@ Line 9: / Line 9: @@
 </pre>
 where \0 are the nulls, and the [] are there because many of the tools expect a [][\n] at the end of a stream (all the deformatters put this at the end of the stream, try <tt>echo bunnymen|apertium-destxt</tt>). Use Ctrl-D (^D) to close the input that cat keeps open.
+=== Other flush signals ===
+Note that in CG stream format, <code>vislcg3</code> uses the string "&lt;STREAMCMD:FLUSH&gt;" instead of a NUL byte: http://beta.visl.sdu.dk/cg3/single/#cmd-flush
+(cg-proc, however, uses the NUL byte like the other programs used in Apertium).
 [[Category:Terminology]]

← Older revision		Revision as of 16:32, 26 September 2016
Line 11:		Line 11:

	[[Category:Terminology]]		[[Category:Terminology]]
			[[Category:Documentation in English]]

@@ Line 8: / Line 8: @@
 cat <(echo -e "this here[][\n]\0is a[][\n]\0little[][\n]\0flushing test[][\n]\0") /dev/stdin | your -z | pipe -z | goes -z | here -z
 </pre>
-where \0 are the nulls, and the [] are there because many of the tools expect a [][\n] at the end of a stream (all the deformatters put this at the end of the stream, try "echo bunnymen|apertium-destxt"). Use Ctrl-D (^D) to close the input that cat keeps open.
+where \0 are the nulls, and the [] are there because many of the tools expect a [][\n] at the end of a stream (all the deformatters put this at the end of the stream, try <tt>echo bunnymen|apertium-destxt</tt>). Use Ctrl-D (^D) to close the input that cat keeps open.
 [[Category:Terminology]]

@@ Line 8: / Line 8: @@
 cat <(echo -e "this here[][\n]\0is a[][\n]\0little[][\n]\0flushing test[][\n]\0") /dev/stdin | your -z | pipe -z | goes -z | here -z
 </pre>
-where \0 are the nulls, and the [] are there because many of the tools expect a [][\n] at the end of a stream (all the deformatters put this at the end of the stream). Use Ctrl-D (^D) to close the input that cat keeps open.
+where \0 are the nulls, and the [] are there because many of the tools expect a [][\n] at the end of a stream (all the deformatters put this at the end of the stream, try "echo bunnymen|apertium-destxt"). Use Ctrl-D (^D) to close the input that cat keeps open.
 [[Category:Terminology]]

@@ Line 6: / Line 6: @@
 If you want to test that a pipe handles null flush correctly, you can use something like:
 <pre>
-cat <(echo -e "this\0is\0a\0test\0") /dev/stdin | your -z | pipe -z | goes -z | here -z
+cat <(echo -e "this here[][\n]\0is a[][\n]\0little[][\n]\0flushing test[][\n]\0") /dev/stdin | your -z | pipe -z | goes -z | here -z
 </pre>
-where \0 are the nulls. Use Ctrl-D (^D) to close the inpue that cat keeps open.
+where \0 are the nulls, and the [] are there because many of the tools expect a [][\n] at the end of a stream (all the deformatters put this at the end of the stream). Use Ctrl-D (^D) to close the input that cat keeps open.
 [[Category:Terminology]]

@@ Line 1: / Line 1: @@
 '''Null flush''' is an option (<code>-z</code>) to most Apertium programs (and programs compatible with [[Apertium stream format]]) that flushes the output buffer upon receiving the <code>\0</code> character instead of on end-of-file. This allows programs which call Apertium externally to keep a translator online, meaning they can avoid startup time for every translation.
+To see how to use this in practice, read [[Daemon]].
 [[Category:Terminology]]

Null flush - Revision history

Unhammer at 18:29, 18 October 2016

Rcrowther at 16:32, 26 September 2016

Unhammer: /* Testing */

Unhammer: /* Testing */

Unhammer: make it actually work

Tino Didriksen: Added test one-liner

Unhammer at 15:04, 15 January 2014

Francis Tyers: Created page with ''''Null flush''' is an option (-z) to most Apertium programs (and programs compatible with Apertium stream format) that flushes the output buffer upon receiving …'

Francis Tyers: Created page with ''''Null flush''' is an option (`-z`) to most Apertium programs (and programs compatible with Apertium stream format) that flushes the output buffer upon receiving …'