BUILD.bazel

# Copyright 2015-2019 Google LLC. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

package(default_visibility = ["//visibility:public"])

licenses(["notice"])  # Apache 2.0

exports_files(["COPYING"])

prefix_dir = "src/"

static_binary = 1

# Core library (lib/)

cc_library(
    name = "fst-decl",
    hdrs = [prefix_dir + "include/fst/fst-decl.h"],
    includes = [prefix_dir + "include"],
    deps = [":base"],
)

PUBLIC_HEADERS = [
    # One-stop header file which includes the remaining headers below:
    prefix_dir + "include/fst/fstlib.h",

    # Fine-grained headers:
    prefix_dir + "include/fst/accumulator.h",
    prefix_dir + "include/fst/add-on.h",
    prefix_dir + "include/fst/arc-arena.h",
    prefix_dir + "include/fst/arc-map.h",
    prefix_dir + "include/fst/arc.h",
    prefix_dir + "include/fst/arcfilter.h",
    prefix_dir + "include/fst/arcsort.h",
    prefix_dir + "include/fst/bi-table.h",
    prefix_dir + "include/fst/cache.h",
    prefix_dir + "include/fst/closure.h",
    prefix_dir + "include/fst/compact-fst.h",
    prefix_dir + "include/fst/complement.h",
    prefix_dir + "include/fst/compose-filter.h",
    prefix_dir + "include/fst/compose.h",
    prefix_dir + "include/fst/concat.h",
    prefix_dir + "include/fst/connect.h",
    prefix_dir + "include/fst/const-fst.h",
    prefix_dir + "include/fst/determinize.h",
    prefix_dir + "include/fst/dfs-visit.h",
    prefix_dir + "include/fst/difference.h",
    prefix_dir + "include/fst/disambiguate.h",
    prefix_dir + "include/fst/edit-fst.h",
    prefix_dir + "include/fst/encode.h",
    prefix_dir + "include/fst/epsnormalize.h",
    prefix_dir + "include/fst/equal.h",
    prefix_dir + "include/fst/equivalent.h",
    prefix_dir + "include/fst/expanded-fst.h",
    prefix_dir + "include/fst/factor-weight.h",
    prefix_dir + "include/fst/filter-state.h",
    prefix_dir + "include/fst/fst.h",
    prefix_dir + "include/fst/heap.h",
    prefix_dir + "include/fst/intersect.h",
    prefix_dir + "include/fst/invert.h",
    prefix_dir + "include/fst/isomorphic.h",
    prefix_dir + "include/fst/label-reachable.h",
    prefix_dir + "include/fst/lookahead-filter.h",
    prefix_dir + "include/fst/lookahead-matcher.h",
    prefix_dir + "include/fst/map.h",
    prefix_dir + "include/fst/matcher-fst.h",
    prefix_dir + "include/fst/matcher.h",
    prefix_dir + "include/fst/memory.h",
    prefix_dir + "include/fst/minimize.h",
    prefix_dir + "include/fst/mutable-fst.h",
    prefix_dir + "include/fst/partition.h",
    prefix_dir + "include/fst/project.h",
    prefix_dir + "include/fst/properties.h",
    prefix_dir + "include/fst/prune.h",
    prefix_dir + "include/fst/push.h",
    prefix_dir + "include/fst/queue.h",
    prefix_dir + "include/fst/randequivalent.h",
    prefix_dir + "include/fst/randgen.h",
    prefix_dir + "include/fst/rational.h",
    prefix_dir + "include/fst/relabel.h",
    prefix_dir + "include/fst/replace-util.h",
    prefix_dir + "include/fst/replace.h",
    prefix_dir + "include/fst/reverse.h",
    prefix_dir + "include/fst/reweight.h",
    prefix_dir + "include/fst/rmepsilon.h",
    prefix_dir + "include/fst/rmfinalepsilon.h",
    prefix_dir + "include/fst/shortest-distance.h",
    prefix_dir + "include/fst/shortest-path.h",
    prefix_dir + "include/fst/state-map.h",
    prefix_dir + "include/fst/state-reachable.h",
    prefix_dir + "include/fst/state-table.h",
    prefix_dir + "include/fst/statesort.h",
    prefix_dir + "include/fst/string.h",
    prefix_dir + "include/fst/symbol-table-ops.h",
    prefix_dir + "include/fst/synchronize.h",
    prefix_dir + "include/fst/test-properties.h",
    prefix_dir + "include/fst/topsort.h",
    prefix_dir + "include/fst/union.h",
    prefix_dir + "include/fst/vector-fst.h",
    prefix_dir + "include/fst/verify.h",
    prefix_dir + "include/fst/visit.h",
]

# This version does not have the export-dynamic flag set and should not be
# used to load dynamic-shared object FST extensions. Please see the
# "lib_export_dynamic" target below for binaries that need DSO loading.
cc_library(
    name = "lib_lite",
    srcs = [
        prefix_dir + "lib/fst.cc",
        prefix_dir + "lib/properties.cc",
        prefix_dir + "lib/symbol-table-ops.cc",
    ],
    hdrs = PUBLIC_HEADERS,
    copts = ["-Wno-sign-compare"],
    includes = [prefix_dir + "include"],
    linkopts = ["-lm"],
    deps = [
        ":base",
        ":fst-decl",
        ":icu",
        ":interval-set",
        ":register",
        ":symbol-table",
        ":union-find",
        ":util",
        ":weight",
    ],
)

cc_library(
    name = "fst",
    hdrs = PUBLIC_HEADERS,
    includes = [prefix_dir + "include"],
    deps = [
        ":fst-types",
        ":lib_lite",
    ],
)

cc_library(
    name = "lib_export_dynamic",
    linkopts = ["-Wl,--export-dynamic"],
    deps = [":fst"],
)

cc_library(
    name = "fst-types",
    srcs = [prefix_dir + "lib/fst-types.cc"],
    deps = [":lib_lite"],
    alwayslink = 1,  # because of registration
)

cc_library(
    name = "symbol-table",
    srcs = [prefix_dir + "lib/symbol-table.cc"],
    hdrs = [prefix_dir + "include/fst/symbol-table.h"],
    copts = ["-Wno-sign-compare"],
    includes = [prefix_dir + "include"],
    deps = [
        ":base",
        ":util",
    ],
)

cc_library(
    name = "weight",
    srcs = [prefix_dir + "lib/weight.cc"],
    hdrs = [
        prefix_dir + "include/fst/expectation-weight.h",
        prefix_dir + "include/fst/float-weight.h",
        prefix_dir + "include/fst/lexicographic-weight.h",
        prefix_dir + "include/fst/pair-weight.h",
        prefix_dir + "include/fst/power-weight.h",
        prefix_dir + "include/fst/product-weight.h",
        prefix_dir + "include/fst/set-weight.h",
        prefix_dir + "include/fst/signed-log-weight.h",
        prefix_dir + "include/fst/sparse-power-weight.h",
        prefix_dir + "include/fst/sparse-tuple-weight.h",
        prefix_dir + "include/fst/string-weight.h",
        prefix_dir + "include/fst/tuple-weight.h",
        prefix_dir + "include/fst/union-weight.h",
        prefix_dir + "include/fst/weight.h",
    ],
    includes = [prefix_dir + "include"],
    linkopts = ["-lm"],
    deps = [
        ":base",
        ":util",
    ],
)

cc_library(
    name = "interval-set",
    hdrs = [prefix_dir + "include/fst/interval-set.h"],
    includes = [prefix_dir + "include"],
    deps = [
        ":base",
        ":util",
    ],
)

cc_library(
    name = "register",
    hdrs = [
        prefix_dir + "include/fst/generic-register.h",
        prefix_dir + "include/fst/register.h",
    ],
    includes = [prefix_dir + "include"],
    linkopts = ["-ldl"],
    deps = [
        ":base",
        ":util",
    ],
)

cc_library(
    name = "icu",
    hdrs = [
        prefix_dir + "include/fst/icu.h",
    ],
)

cc_library(
    name = "union-find",
    hdrs = [prefix_dir + "include/fst/union-find.h"],
    includes = [prefix_dir + "include"],
    deps = [":base"],
)

cc_library(
    name = "util",
    srcs = [
        prefix_dir + "lib/mapped-file.cc",
        prefix_dir + "lib/util.cc",
    ],
    hdrs = [
        prefix_dir + "include/fst/mapped-file.h",
        prefix_dir + "include/fst/util.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [":base"],
)

cc_library(
    name = "base",
    srcs = [
        prefix_dir + "lib/compat.cc",
        prefix_dir + "lib/flags.cc",
    ],
    hdrs = [
        prefix_dir + "include/fst/compat.h",
        prefix_dir + "include/fst/config.h",
        prefix_dir + "include/fst/flags.h",
        prefix_dir + "include/fst/icu.h",
        prefix_dir + "include/fst/lock.h",
        prefix_dir + "include/fst/log.h",
        prefix_dir + "include/fst/types.h",
    ],
    includes = [prefix_dir + "include"],
)

# Core library tests (test/)

cc_test(
    name = "fst_test",
    timeout = "short",
    srcs = [
        prefix_dir + "test/fst_test.cc",
        prefix_dir + "include/fst/test/fst_test.h",
    ],
    deps = [":fst"],
)

cc_library(
    name = "weight-tester",
    testonly = 1,
    hdrs = [prefix_dir + "include/fst/test/weight-tester.h"],
    includes = [prefix_dir],
    deps = [":weight"],
)

cc_test(
    name = "weight_test",
    timeout = "short",
    srcs = [prefix_dir + "test/weight_test.cc"],
    copts = ["-Wno-unused-local-typedefs"],
    deps = [
        ":fst",
        ":weight-tester",
    ],
)

[
    cc_test(
        name = "algo_test_%s" % weight,
        srcs = [
            prefix_dir + "test/algo_test.cc",
            prefix_dir + "include/fst/test/algo_test.h",
            prefix_dir + "include/fst/test/rand-fst.h",
        ],
        defines = ["TEST_%s" % weight.upper()],
        deps = [":fst"],
    )
    for weight in [
        "tropical",
        "log",
        "minmax",
        "lexicographic",
        "power",
    ]
]

# Non-template scripting-language integration (script/)

cc_library(
    name = "fstscript_base",
    srcs = [
        prefix_dir + "script/arciterator-class.cc",
        prefix_dir + "script/encodemapper-class.cc",
        prefix_dir + "script/fst-class.cc",
        prefix_dir + "script/getters.cc",
        prefix_dir + "script/stateiterator-class.cc",
        prefix_dir + "script/text-io.cc",
        prefix_dir + "script/weight-class.cc",
    ],
    hdrs = [
        prefix_dir + "include/fst/script/arc-class.h",
        prefix_dir + "include/fst/script/arciterator-class.h",
        prefix_dir + "include/fst/script/arg-packs.h",
        prefix_dir + "include/fst/script/encodemapper-class.h",
        prefix_dir + "include/fst/script/fst-class.h",
        prefix_dir + "include/fst/script/fstscript-decl.h",
        prefix_dir + "include/fst/script/fstscript.h",
        prefix_dir + "include/fst/script/getters.h",
        prefix_dir + "include/fst/script/register.h",
        prefix_dir + "include/fst/script/script-impl.h",
        prefix_dir + "include/fst/script/stateiterator-class.h",
        prefix_dir + "include/fst/script/text-io.h",
        prefix_dir + "include/fst/script/weight-class.h",
        #
        prefix_dir + "include/fst/script/arcsort.h",
        prefix_dir + "include/fst/script/closure.h",
        prefix_dir + "include/fst/script/compile.h",
        prefix_dir + "include/fst/script/compile-impl.h",
        prefix_dir + "include/fst/script/compose.h",
        prefix_dir + "include/fst/script/concat.h",
        prefix_dir + "include/fst/script/connect.h",
        prefix_dir + "include/fst/script/convert.h",
        prefix_dir + "include/fst/script/decode.h",
        prefix_dir + "include/fst/script/determinize.h",
        prefix_dir + "include/fst/script/difference.h",
        prefix_dir + "include/fst/script/disambiguate.h",
        prefix_dir + "include/fst/script/draw.h",
        prefix_dir + "include/fst/script/draw-impl.h",
        prefix_dir + "include/fst/script/encode.h",
        prefix_dir + "include/fst/script/epsnormalize.h",
        prefix_dir + "include/fst/script/equal.h",
        prefix_dir + "include/fst/script/equivalent.h",
        prefix_dir + "include/fst/script/info.h",
        prefix_dir + "include/fst/script/info-impl.h",
        prefix_dir + "include/fst/script/intersect.h",
        prefix_dir + "include/fst/script/invert.h",
        prefix_dir + "include/fst/script/isomorphic.h",
        prefix_dir + "include/fst/script/map.h",
        prefix_dir + "include/fst/script/minimize.h",
        prefix_dir + "include/fst/script/print.h",
        prefix_dir + "include/fst/script/print-impl.h",
        prefix_dir + "include/fst/script/project.h",
        prefix_dir + "include/fst/script/prune.h",
        prefix_dir + "include/fst/script/push.h",
        prefix_dir + "include/fst/script/randequivalent.h",
        prefix_dir + "include/fst/script/randgen.h",
        prefix_dir + "include/fst/script/relabel.h",
        prefix_dir + "include/fst/script/replace.h",
        prefix_dir + "include/fst/script/reverse.h",
        prefix_dir + "include/fst/script/reweight.h",
        prefix_dir + "include/fst/script/rmepsilon.h",
        prefix_dir + "include/fst/script/shortest-distance.h",
        prefix_dir + "include/fst/script/shortest-path.h",
        prefix_dir + "include/fst/script/synchronize.h",
        prefix_dir + "include/fst/script/topsort.h",
        prefix_dir + "include/fst/script/union.h",
        prefix_dir + "include/fst/script/verify.h",
    ],
    copts = ["-Wno-sign-compare"],
    includes = [prefix_dir + "include"],
    deps = [":fst"],
)

[
    cc_library(
        name = "fstscript_%s" % operation,
        srcs = [prefix_dir + "script/%s.cc" % operation],
        hdrs = [prefix_dir + "include/fst/script/%s.h" % operation],
        includes = [prefix_dir + "include"],
        deps = [":fstscript_base"],
    )
    for operation in [
        "arcsort",
        "closure",
        "concat",
        "connect",
        "convert",
        "decode",
        "determinize",
        "disambiguate",
        "encode",
        "epsnormalize",
        "equal",
        "equivalent",
        "invert",
        "isomorphic",
        "map",
        "minimize",
        "project",
        "prune",
        "push",
        "randgen",
        "relabel",
        "replace",
        "reverse",
        "reweight",
        "synchronize",
        "topsort",
        "union",
        "verify",
    ]
]

cc_library(
    name = "fstscript_compile",
    srcs = [prefix_dir + "script/compile.cc"],
    hdrs = [
        prefix_dir + "include/fst/script/compile.h",
        prefix_dir + "include/fst/script/compile-impl.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [":fstscript_base"],
)

cc_library(
    name = "fstscript_compose",
    srcs = [prefix_dir + "script/compose.cc"],
    hdrs = [prefix_dir + "include/fst/script/compose.h"],
    includes = [prefix_dir + "include"],
    deps = [
        ":fstscript_base",
        ":fstscript_connect",
    ],
)

cc_library(
    name = "fstscript_difference",
    srcs = [prefix_dir + "script/difference.cc"],
    hdrs = [prefix_dir + "include/fst/script/difference.h"],
    includes = [prefix_dir + "include"],
    deps = [
        ":fstscript_base",
        ":fstscript_compose",
    ],
)

cc_library(
    name = "fstscript_draw",
    srcs = [prefix_dir + "script/draw.cc"],
    hdrs = [
        prefix_dir + "include/fst/script/draw.h",
        prefix_dir + "include/fst/script/draw-impl.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [":fstscript_base"],
)

cc_library(
    name = "fstscript_info",
    srcs = [
        prefix_dir + "script/info.cc",
        prefix_dir + "script/info-impl.cc",
    ],
    hdrs = [
        prefix_dir + "include/fst/script/info.h",
        prefix_dir + "include/fst/script/info-impl.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [":fstscript_base"],
)

cc_library(
    name = "fstscript_intersect",
    srcs = [prefix_dir + "script/intersect.cc"],
    hdrs = [prefix_dir + "include/fst/script/intersect.h"],
    includes = [prefix_dir + "include"],
    deps = [
        ":fstscript_base",
        ":fstscript_compose",
    ],
)

cc_library(
    name = "fstscript_print",
    srcs = [prefix_dir + "script/print.cc"],
    hdrs = [
        prefix_dir + "include/fst/script/print.h",
        prefix_dir + "include/fst/script/print-impl.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [":fstscript_base"],
)

cc_library(
    name = "fstscript_randequivalent",
    srcs = [prefix_dir + "script/randequivalent.cc"],
    hdrs = [prefix_dir + "include/fst/script/randequivalent.h"],
    includes = [prefix_dir + "include"],
    deps = [
        ":fstscript_base",
        ":fstscript_randgen",
    ],
)

cc_library(
    name = "fstscript_rmepsilon",
    srcs = [prefix_dir + "script/rmepsilon.cc"],
    hdrs = [prefix_dir + "include/fst/script/rmepsilon.h"],
    includes = [prefix_dir + "include"],
    deps = [
        ":fstscript_base",
        ":fstscript_shortest_distance",
    ],
)

cc_library(
    name = "fstscript_shortest_distance",
    srcs = [prefix_dir + "script/shortest-distance.cc"],
    hdrs = [prefix_dir + "include/fst/script/shortest-distance.h"],
    includes = [prefix_dir + "include"],
    deps = [
        ":fstscript_base",
        ":fstscript_prune",
    ],
)

cc_library(
    name = "fstscript_shortest_path",
    srcs = [prefix_dir + "script/shortest-path.cc"],
    hdrs = [prefix_dir + "include/fst/script/shortest-path.h"],
    includes = [prefix_dir + "include"],
    deps = [
        ":fstscript_base",
        ":fstscript_shortest_distance",
    ],
)

cc_library(
    name = "fstscript",
    deps = [
        ":fstscript_arcsort",
        ":fstscript_closure",
        ":fstscript_compile",
        ":fstscript_compose",
        ":fstscript_concat",
        ":fstscript_connect",
        ":fstscript_convert",
        ":fstscript_decode",
        ":fstscript_determinize",
        ":fstscript_difference",
        ":fstscript_disambiguate",
        ":fstscript_draw",
        ":fstscript_encode",
        ":fstscript_epsnormalize",
        ":fstscript_equal",
        ":fstscript_equivalent",
        ":fstscript_info",
        ":fstscript_intersect",
        ":fstscript_invert",
        ":fstscript_isomorphic",
        ":fstscript_map",
        ":fstscript_minimize",
        ":fstscript_print",
        ":fstscript_project",
        ":fstscript_prune",
        ":fstscript_push",
        ":fstscript_randequivalent",
        ":fstscript_randgen",
        ":fstscript_relabel",
        ":fstscript_replace",
        ":fstscript_reverse",
        ":fstscript_reweight",
        ":fstscript_rmepsilon",
        ":fstscript_shortest_distance",
        ":fstscript_shortest_path",
        ":fstscript_synchronize",
        ":fstscript_topsort",
        ":fstscript_union",
        ":fstscript_verify",
    ],
)

# Command-line binaries (bin/)

[
    cc_binary(
        name = "fst%s" % operation.replace("_", ""),
        srcs = [
            prefix_dir + "bin/fst%s.cc" % operation.replace("_", ""),
            prefix_dir + "bin/fst%s-main.cc" % operation.replace("_", ""),
        ],
        linkstatic = static_binary,
        deps = [":fstscript_%s" % operation],
    )
    for operation in [
        "arcsort",
        "closure",
        "compile",
        "compose",
        "concat",
        "connect",
        "convert",
        "determinize",
        "difference",
        "disambiguate",
        "draw",
        "epsnormalize",
        "equal",
        "info",
        "intersect",
        "invert",
        "isomorphic",
        "map",
        "minimize",
        "print",
        "project",
        "prune",
        "push",
        "randgen",
        "relabel",
        "replace",
        "reverse",
        "reweight",
        "rmepsilon",
        "shortest_distance",
        "shortest_path",
        "synchronize",
        "topsort",
        "union",
    ]
]

cc_binary(
    name = "fstencode",
    srcs = [
        prefix_dir + "bin/fstencode.cc",
        prefix_dir + "bin/fstencode-main.cc",
    ],
    linkstatic = static_binary,
    deps = [
        ":fstscript_decode",
        ":fstscript_encode",
    ],
)

cc_binary(
    name = "fstequivalent",
    srcs = [
        prefix_dir + "bin/fstequivalent.cc",
        prefix_dir + "bin/fstequivalent-main.cc",
    ],
    linkstatic = static_binary,
    deps = [
        ":fstscript_equivalent",
        ":fstscript_randequivalent",
    ],
)

cc_binary(
    name = "fstsymbols",
    srcs = [
        prefix_dir + "bin/fstsymbols.cc",
        prefix_dir + "bin/fstsymbols-main.cc",
    ],
    linkstatic = static_binary,
    deps = [":fstscript_verify"],
)

# Extension: Fst ARchive a/k/a FAR (extensions/far/)

cc_library(
    name = "sttable",
    srcs = [
        prefix_dir + "extensions/far/stlist.cc",
        prefix_dir + "extensions/far/sttable.cc",
    ],
    hdrs = [
        prefix_dir + "include/fst/extensions/far/stlist.h",
        prefix_dir + "include/fst/extensions/far/sttable.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [":util"],
)

cc_library(
    name = "far_base",
    hdrs = [
        prefix_dir + "include/fst/extensions/far/far.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [
        ":fst",
        ":sttable",
    ],
)

cc_library(
    name = "far",
    srcs = [prefix_dir + "extensions/far/strings.cc"],
    hdrs = [
        prefix_dir + "include/fst/extensions/far/compile-strings.h",
        prefix_dir + "include/fst/extensions/far/create.h",
        prefix_dir + "include/fst/extensions/far/equal.h",
        prefix_dir + "include/fst/extensions/far/extract.h",
        prefix_dir + "include/fst/extensions/far/farlib.h",
        prefix_dir + "include/fst/extensions/far/info.h",
        prefix_dir + "include/fst/extensions/far/isomorphic.h",
        prefix_dir + "include/fst/extensions/far/print-strings.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [
        ":far_base",
        ":fst",
    ],
)

cc_library(
    name = "farscript",
    srcs = [
        prefix_dir + "extensions/far/far-class.cc",
        prefix_dir + "extensions/far/farscript.cc",
        prefix_dir + "extensions/far/getters.cc",
        prefix_dir + "extensions/far/script-impl.cc",
        prefix_dir + "extensions/far/strings.cc",
    ],
    hdrs = [
        prefix_dir + "include/fst/extensions/far/compile-strings.h",
        prefix_dir + "include/fst/extensions/far/far-class.h",
        prefix_dir + "include/fst/extensions/far/farscript.h",
        prefix_dir + "include/fst/extensions/far/getters.h",
        prefix_dir + "include/fst/extensions/far/script-impl.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [
        ":base",
        ":far",
        ":fstscript_base",
    ],
)

[
    cc_binary(
        name = "far%s" % operation,
        srcs = [prefix_dir + "extensions/far/far%s.cc" % operation],
        linkstatic = static_binary,
        deps = [":farscript"],
    )
    for operation in [
        "compilestrings",
        "create",
        "equal",
        "extract",
        "info",
        "isomorphic",
        "printstrings",
    ]
]

# Extension: PushDown Transducers a/k/a PDT (extensions/pdt/)

cc_library(
    name = "pdt",
    hdrs = [
        prefix_dir + "include/fst/extensions/pdt/collection.h",
        prefix_dir + "include/fst/extensions/pdt/compose.h",
        prefix_dir + "include/fst/extensions/pdt/expand.h",
        prefix_dir + "include/fst/extensions/pdt/getters.h",
        prefix_dir + "include/fst/extensions/pdt/info.h",
        prefix_dir + "include/fst/extensions/pdt/paren.h",
        prefix_dir + "include/fst/extensions/pdt/pdt.h",
        prefix_dir + "include/fst/extensions/pdt/pdtlib.h",
        prefix_dir + "include/fst/extensions/pdt/replace.h",
        prefix_dir + "include/fst/extensions/pdt/reverse.h",
        prefix_dir + "include/fst/extensions/pdt/shortest-path.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [
        ":fst",
    ],
)

cc_library(
    name = "pdtscript",
    srcs = [
        prefix_dir + "extensions/pdt/getters.cc",
        prefix_dir + "extensions/pdt/pdtscript.cc",
    ],
    hdrs = [
        prefix_dir + "include/fst/extensions/pdt/getters.h",
        prefix_dir + "include/fst/extensions/pdt/pdtscript.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [
        ":fst",
        ":fstscript_base",
        ":pdt",
    ],
)

cc_binary(
    name = "pdtcompose",
    srcs = [prefix_dir + "extensions/pdt/pdtcompose.cc"],
    linkstatic = static_binary,
    deps = [
        ":fstscript_connect",
        ":pdtscript",
    ],
)

[
    cc_binary(
        name = "pdt%s" % operation,
        srcs = [prefix_dir + "extensions/pdt/pdt%s.cc" % operation],
        linkstatic = static_binary,
        deps = [":pdtscript"],
    )
    for operation in [
        "expand",
        "info",
        "replace",
        "reverse",
        "shortestpath",
    ]
]

# Extension: Multi PushDown Transducers a/k/a MPDT (extensions/mpdt/)

cc_library(
    name = "mpdt",
    hdrs = [
        prefix_dir + "include/fst/extensions/mpdt/compose.h",
        prefix_dir + "include/fst/extensions/mpdt/expand.h",
        prefix_dir + "include/fst/extensions/mpdt/info.h",
        prefix_dir + "include/fst/extensions/mpdt/mpdt.h",
        prefix_dir + "include/fst/extensions/mpdt/mpdtlib.h",
        prefix_dir + "include/fst/extensions/mpdt/read_write_utils.h",
        prefix_dir + "include/fst/extensions/mpdt/reverse.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [
        ":fst",
        ":pdt",
    ],
)

cc_library(
    name = "mpdtscript",
    srcs = [prefix_dir + "extensions/mpdt/mpdtscript.cc"],
    hdrs = [prefix_dir + "include/fst/extensions/mpdt/mpdtscript.h"],
    includes = [prefix_dir + "include"],
    deps = [
        ":fst",
        ":fstscript_base",
        ":mpdt",
        ":pdtscript",
    ],
)

cc_binary(
    name = "mpdtcompose",
    srcs = [prefix_dir + "extensions/mpdt/mpdtcompose.cc"],
    linkstatic = static_binary,
    deps = [
        ":fstscript_connect",
        ":mpdtscript",
    ],
)

[
    cc_binary(
        name = "mpdt%s" % operation,
        srcs = [prefix_dir + "extensions/mpdt/mpdt%s.cc" % operation],
        linkstatic = static_binary,
        deps = [":mpdtscript"],
    )
    for operation in [
        "expand",
        "info",
        "reverse",
    ]
]

# Extension: LOUDS compressed n-gram language models (extensions/ngram/)

cc_library(
    name = "ngram",
    srcs = [
        prefix_dir + "extensions/ngram/bitmap-index.cc",
        prefix_dir + "extensions/ngram/ngram-fst.cc",
        prefix_dir + "extensions/ngram/nthbit.cc",
    ],
    hdrs = [
        prefix_dir + "include/fst/extensions/ngram/bitmap-index.h",
        prefix_dir + "include/fst/extensions/ngram/ngram-fst.h",
        prefix_dir + "include/fst/extensions/ngram/nthbit.h",
    ],
    includes = [prefix_dir + "include"],
    deps = [
        ":fst",
    ],
)

# TODO: Extensions compact, compress, const, linear, lookahead, python, special