HFST-REGEXP2FST

NAME

hfst-regexp2fst - =Compile (weighted) regular expressions into transducer(s)

SYNOPSIS

hfst-regexp2fst [OPTIONS...] [INFILE]

DESCRIPTION

Compile (weighted) regular expressions into transducer(s) 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 transducer from INFILE

-o, --output=OUTFILE

Write output transducer to OUTFILE

String and format options:

-f, --format=FMT

Write result in FMT format

-j, --disjunct

Disjunct all regexps instead of transforming each regexp into a separate transducer

-l, --line

Input is line separated (default)

-S, --semicolon

Input is semicolon separated

-e, --epsilon=EPS

Map EPS as zero, i.e. epsilon.

-x, --xerox-composition=VALUE Whether flag diacritics are treated as
ordinary

symbols in composition (default is false).

-X, --xfst=VARIABLE

Toggle xfst compatibility option VARIABLE.

Harmonization and optimization options:

-H, --do-not-harmonize

Do not expand ’?’ symbols.

-F, --harmonize-flags

Harmonize flag diacritics.

-E, --encode-weights

Encode weights when minimizing (default is false).

-M, --do-not-minimize

Determinize result instead of minimizing it.

If OUTFILE or INFILE is missing or -, standard streams will be used. FMT must be one of the following: {foma, sfst, openfst-tropical, openfst-log}. If EPS is not defined, the default representation of 0 is used VALUEs recognized are {true,ON,yes} and {false,OFF,no}. Xfst variables are {flag-is-epsilon (default OFF)}.

EXAMPLES

echo " {cat}:{dog} " | hfst-regexp2fst

create transducer {cat}:{dog}

echo " {cat}:{dog}::3 " | hfst-regexp2fst

same but with weight 3

echo " c:d a:o::3 t:g " | hfst-regexp2fst

same but with weight 3 in the middle

echo " cat ; dog ; "3" " | hfst-regexp2fst -S

create transducers

"cat" and "dog" and "3"

REPORTING BUGS

Report bugs to <hfst-bugs@helsinki.fi> or directly to our bug tracker at: <https://github.com/hfst/hfst/issues>

hfst-regexp2fst home page: <https://github.com/hfst/hfst/wiki/Regexp2Fst>
General help using HFST software: <https://github.com/hfst/hfst/wiki>

COPYRIGHT

Copyright © 2017 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.