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PROGRAM:

NAME


hfst-pair-test - =pair test for a twolc rule file.

SYNOPSIS


hfst-pair-test [OPTIONS...] [INFILE]

DESCRIPTION


pair test for a twolc rule file.

Common options:
-h, --help
Print help message

-V, --version
Print version info

-v, --verbose
Print verbosely while processing

-q, --quiet
Only print fatal erros and requested output

-s, --silent
Alias of --quiet

Input/Output options:
-i, --input=INFILE
Read input rule file from INFILE

-o, --output=OUTFILE
Write test output to OUTFILE

-N --negative-test
Test fails if any of the pair strings is accepted.

-X --xerox-mode
In xerox mode, test cases are harvested from a twolc source file.

Pair test options:
-I, --input-strings=SFILE
Read pair test strings from SFILE

If SFILE is missing, the test pair strings are read from STDIN. If OUTFILE is missing,
test output is written to STDOUT.

The rule file is tested using correspondences given as pair strings, e.g. "e a r l y:i e
r". Every pair string is tested using every rule and the program prints information about
correspondences that are incorrectly allowed or disallowed.

The test pair string files contain one pair string/line. Lines where the first
non-white-space character is "!" are considered comment lines and skipped.

There are three test modes positive, negative and Xerox mode. In positive mode, all of the
pair strings should be allowed and in negative mode they should be disallowed. In Xerox
mode the cases are read from a twolc source file and both positive and negative cases can
occur.

Ordinarily, positive test mode is in use. Option -N switches to negative test mode. The
exit code for a successful test is 0. The exit code is 1 otherwise. A successful test
will print "Test passed". A failing test prints "Test failed" and information about pair
strings that are handled incorrectly.

In positive test mode (i.e. without option -N), if a pair string is not accepted, the
names of the rules that reject it are printed as well as the positions in the string where
the rules run out of possible transitions. In negative mode, only the strings that are
allowed are printed.

In Xerox mode, the input should be a twolc file. Tests consist of two lines: an input form
and an output form. The test cases are specialized comments prefixed with either '!???' or
'!$' depeding on whether the pair should succeed or fail. An example of a positive test:

!??? earlYer !??? earlier

An example of a negative test:

!$ earlYer !$ earlyer

In silent mode (-s), the program won't print anything. Only the exit code tells whether
the test was successful or not.

REPORTING BUGS


Report bugs to <hfst-bugs@helsinki.fi> or directly to our bug tracker at:
<https://sourceforge.net/tracker/?atid=1061990&group_id=224521&func=browse>

hfst-pair-test home page: <https://kitwiki.csc.fi/twiki/bin/view/KitWiki//HfstPairTest>
General help using HFST software:
<https://kitwiki.csc.fi/twiki/bin/view/KitWiki//HfstHome>

COPYRIGHT


Copyright © 2010 University of Helsinki, License GPLv3: GNU GPL version 3
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it. There is NO WARRANTY,
to the extent permitted by law.

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