Firespeaker at 18:12, 15 July 2022

2022-07-15T18:12:32Z

Firespeaker at 17:41, 15 July 2022

2022-07-15T17:41:19Z

Firespeaker: Created page with "Many Apertium executables have "null flush" modes (usually with `-z`), which allows the executable to run once, stay open, accept input, and flush the output only on a..."

2022-07-15T17:41:01Z

Created page with "Many Apertium executables have "null flush" modes (usually with <tt>-z</tt>), which allows the executable to run once, stay open, accept input, and flush the output only on a..."

New page

Many Apertium executables have "null flush" modes (usually with <tt>-z</tt>), which allows the executable to run once, stay open, accept input, and flush the output only on a null character.

Here's a simple example of how to implement a wrapper in python3 around <code>lt-proc</code> and a transducer.

<pre>
from subprocess import Popen, PIPE

things_to_transduce = ['foo', 'bar', 'hargle', 'bargle']

transducer_process = Popen(["lt-proc", "-t", "-z", "transducer.bin"], stdin=PIPE, stdout=PIPE)

def transduce(inputString):
transducer_process.stdin.write(bytes('{}\n'.format(inputString), 'utf-8'))
transducer_process.stdin.write(b'\0')
transducer_process.stdin.flush()
return repr(transducer_process.stdout.readline().strip(b'\0').strip(b'\n').decode())

for thing_to_transduce in things_to_transduce:
print(transduce(thing_to_transduce))

transducer_process.stdin.close()
transducer_process.wait()
</pre>

@@ Line 22: / Line 22: @@
 transducer_process.wait()
 </pre>
+There's a [https://github.com/apertium/lttoolbox/blob/master/tests/basictest.py more involved example in the lttoolbox tests], which adds handling for when the process hangs.

@@ Line 22: / Line 22: @@
 transducer_process.wait()
 </pre>
+[[Category:Documentation]]

How to use null flush in python - Revision history

Firespeaker at 18:12, 15 July 2022

Firespeaker at 17:41, 15 July 2022

Firespeaker: Created page with "Many Apertium executables have "null flush" modes (usually with -z), which allows the executable to run once, stay open, accept input, and flush the output only on a..."

Firespeaker: Created page with "Many Apertium executables have "null flush" modes (usually with `-z`), which allows the executable to run once, stay open, accept input, and flush the output only on a..."