NAME

       fstreplace - replace FST arcs with other FSTs

SYNOPSIS

       fstreplace [OPTIONS] root.fst rootlabel [rule.fst label...]  [out.fst]]

DESCRIPTION

       Performs  dynamic  replacement  of  arcs in one FST with another FST, allowing for the definition of FSTs
       analogous to RTNs.

OPTIONS

       Boolean options accept either true or false as a value, or the implicit value true if  neither  value  is
       specified.

       --call_arc_labeling=STRING
              Which labels to make non-epsilon on the call arc, one of "input", "output", "both", and "neither".
              Default: "input".

       --epsilon_on_replace[=BOOLEAN]
              For backwards compatibility: call/return arcs are epsilon arcs.  Default: false.

       --fst_align[=BOOLEAN]
              Write FST data aligned where appropriate.  Default: false.

       --fst_compat_symbols[=BOOLEAN]
              Require symbol tables to match when appropriate.  Default: true.

       --fst_default_cache_gc[=BOOLEAN]
              Enable garbage collection of cache.  Default: true.

       --fst_default_cache_gc_limit=N
              Set the cache byte size that triggers garbage collection.  Default: 1048576.

       --fst_error_fatal[=BOOLEAN]
              If true, FST errors are fatal.  Otherwise, returned objects are flagged as bad.  For example, FSTs
              are  returned  with  the kError property set to true, and FST weights set so that Member() returns
              false.  Default: true.

       --fst_field_separator=STRING
              Set the characters used as a separator between printed fields.  Default: "     ".

       --fst_read_mode=STRING
              Set the default file reading mode for mappable files, either "read" or "map".  Default: "read".

       --fst_verify_properties[=BOOLEAN]
              Verify fst properties queried by TestProperties.  Default: false.

       --fst_weight_parentheses=STRING
              Set the characters enclosing the first weight of a printed composite weight  (e.g.,  pair  weight,
              tuple  weight,  and  derived classes) to ensure proper I/O of nested composite weights.  Must have
              size 0 (none) or 2 (open and close parenthesis).  Default: no parentheses.

       --fst_weight_separator=CHARACTER
              Set the character separator between printed composite weights.  Default: comma.

       --help[=BOOLEAN]
              Show usage information.  Default: false.

       --helpshort[=BOOLEAN]
              Show brief usage information.  Default: false.

       --return_arc_labeling=STRING
              Which labels to make non-epsilon on  the  return  arc,  one  of  "input",  "output",  "both",  and
              "neither".  Default: "neither".

       --return_label=INTEGER
              Label to put on return arc.  Default: 0.

       --save_relabel_ipairs=FILENAME
              Save input relabel pairs to file.  Default: do not save.

       --save_relabel_opairs=FILENAME
              Save output relabel pairs to file.  Default: do not save.

       --tmpdir=PATHNAME
              Set the temporary directory to use.  Default: /tmp.

       --v[=N]
              Set the verbosity level.  Default: 0.

SEE ALSO

       fstarcsort(1),  fstclosure(1), fstcompile(1), fstcompose(1), fstcompress(1), fstconcat(1), fstconnect(1),
       fstconvert(1),  fstdeterminize(1),  fstdifference(1),   fstdisambiguate(1),   fstdraw(1),   fstencode(1),
       fstepsnormalize(1),    fstequal(1),    fstequivalent(1),   fstinfo(1),   fstintersect(1),   fstinvert(1),
       fstisomorphic(1),   fstlinear(1),   fstloglinearapply(1),   fstmap(1),    fstminimize(1),    fstprint(1),
       fstproject(1),  fstprune(1),  fstpush(1),  fstrandgen(1),  fstrandmod(1),  fstrelabel(1),  fstreverse(1),
       fstreweight(1),    fstrmepsilon(1),    fstshortestdistance(1),     fstshortestpath(1),     fstsymbols(1),
       fstsynchronize(1), fsttopsort(1), fstunion(1)