---
name: "hfst-calculate"
section: "1"
platform: "linux"
package: "hfst"
version: "3.16.2-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/hfst-calculate"
---

# hfst-calculate(1)

\=Compile a file written with SFST programming language into a transducer.

## NAME

hfst-sfstpl2fst - =Compile a file written with SFST programming language into a transducer.

## SYNOPSIS

**hfst-sfstpl2fst** *(alias hfst-calculate)* \[*OPTIONS*...\] \[*INFILE*\]

## DESCRIPTION

Compile a file written with SFST programming language into a transducer.

### 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 from INFILE

- **-o**, **--output**=*OUTFILE*

  Write output transducer to OUTFILE

### String and format options:

- **-f**, **--format**=*FMT*

  Write result in FMT format

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}

## EXAMPLES

-

  echo "\[a-z\]\*" \| hfst-sfstpl2fst -f foma \> az.foma

-

  create a foma transducer accepting any number of consecutive characters between a and z, inclusive

-

  echo "a:b (a:\<\>)+" \> ab.sfst-pl ; hfst-sfstpl2fst -f openfst-tropical \\

\-i ab.sfst-pl -o ab.tropical

-

  create a tropical OpenFst transducer that accepts two or more consecutive 'a's and maps them into string "b"

## REPORTING BUGS

Report bugs to \<hfst-bugs@helsinki.fi\> or directly to our bug tracker at: \<https://github.com/hfst/hfst/issues\> hfst-sfstpl2fst home page: \<https://github.com/hfst/hfst/wiki/HfstSfstPl2Fst\>\
 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.