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Pair Encoding (BPE)." +license-file = "LICENSE" +keywords = ["text", "tokenizer", "bpe", "tokenization", "cli"] +categories = ["command-line-utilities", "text-processing"] + +[dependencies] +anyhow = "1.0.89" +bpe-tokenizer = { version = "0.1.4", features = ["default-small", "default-medium", "default-large"] } +clap = { version = "4.5.18", features = ["derive"] } diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..35d39a7 --- /dev/null +++ b/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2024 Stephen Waits + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/README.md b/README.md new file mode 100644 index 0000000..7da4d5b --- /dev/null +++ b/README.md @@ -0,0 +1,127 @@ +# bpetok + +`bpetok` is a simple command-line interface (CLI) application written in Rust for tokenizing text input using Byte Pair Encoding (BPE). The primary goal of the tool is to provide efficient and flexible tokenization for various applications that rely on text processing, natural language processing (NLP), or any pipeline where tokenized input is necessary. + +Given an input text stream from stdin, `bpetok` produces tokenized sentences to stdout. It supports multiple built-in vocabulary sizes (small, medium, large), and also allows for the loading of custom vocabularies. + +## Features + +- **Tokenization using Byte Pair Encoding (BPE)**: Tokenizes input text using the BPE algorithm. +- **Multiple built-in vocabularies**: + - Small (100k sized vocabulary) + - Medium (320k sized vocabulary) [default] + - Large (1M sized vocabulary) +- **Custom vocabulary support**: Load your own BPE vocabulary from a file. +- **CLI-friendly**: Simple and intuitive command-line arguments. +- **Stream-based**: Tokenizes text from standard input line-by-line, emitting tokens to standard output. + +## Installation + +You can install `bpetok` directly from [crates.io](https://crates.io/crates/bpetok) using Cargo: + +```sh +cargo install bpetok +``` + +Once installed, the `bpetok` binary is available to use globally on your system. + +### Usage + +```sh +bpetok [OPTIONS] +``` + +#### Flags and Options + +- **Default Vocabulary Size (medium)**: By default, it uses the **medium** vocabulary (320k tokens). + +- `-s`, `--small`: Use the smaller vocabulary (100k tokens). + +- `-l`, `--large`: Use the larger vocabulary (1M tokens). + +- `-v`, `--vocab FILE`: Path to custom BPE vocabulary file. When this flag is set, the built-in vocabularies are ignored. + +A BPE vocabulary file is expected to follow this format: + +```text +\t\n +``` + +Each line should consist of: + +- A token (a string) followed by a tab character (`\t`) +- A score (an integer) as either a positive or negative value. + +Example lines from the file: + +```text + 0 + 0 + 0 +00 -0 +an -1 +▁d -2 +en -3 +er -4 +▁s -5 +in -6 +▁p -7 +ar -8 +▁a -9 +▁00 -10 +▁m -11 +▁t -12 +es -13 +on -14 +▁k -15 +or -16 +▁n -17 +la -18 +▁b -19 +is -20 +▁c -21 +``` + +#### Examples + +##### Tokenizing with the default (medium) vocabulary + +```sh +echo "Hello world" | bpetok +``` + +##### Tokenizing using the **small** vocabulary + +```sh +echo "Hello world" | bpetok --small +``` + +##### Tokenizing using the **large** vocabulary + +```sh +echo "Hello world" | bpetok --large +``` + +##### Tokenizing using a **custom vocabulary file** + +```sh +echo "Hello world" | bpetok --vocab path/to/vocabulary.bpe +``` + +### Error Handling + +- If an invalid vocabulary file is provided using the `--vocab` option, the program will gracefully fail and print an error message to `stderr`. + +- Similarly, any issues with initializing the default vocabularies (small, medium, or large) will result in an error with appropriate feedback printed to the terminal. + +## Development + +To contribute or modify `bpetok`, you'll need a working installation of the Rust toolchain. Once set up, feel free to modify or extend the functionality of the tool and submit a PR. + +## Acknowledgements + +The default pre-built small, medium, and large vocabularies are 275-language multilingual vocabularies that were originally trained on Wikipedia by the [BPEmb project](https://bpemb.h-its.org/). We thank the contributors from BPEmb for making these vocabularies open and accessible to the community. + +## License + +This project is licensed under the MIT License. See the [LICENSE](./LICENSE) file for more details. diff --git a/deny.toml b/deny.toml new file mode 100644 index 0000000..615b349 --- /dev/null +++ b/deny.toml @@ -0,0 +1,231 @@ +# This template contains all of the possible sections and their default values + +# Note that all fields that take a lint level have these possible values: +# * deny - An error will be produced and the check will fail +# * warn - A warning will be produced, but the check will not fail +# * allow - No warning or error will be produced, though in some cases a note +# will be + +# The values provided in this template are the default values that will be used +# when any section or field is not specified in your own configuration + +# Root options + +# The graph table configures how the dependency graph is constructed and thus +# which crates the checks are performed against +[graph] +# If 1 or more target triples (and optionally, target_features) are specified, +# only the specified targets will be checked when running `cargo deny check`. +# This means, if a particular package is only ever used as a target specific +# dependency, such as, for example, the `nix` crate only being used via the +# `target_family = "unix"` configuration, that only having windows targets in +# this list would mean the nix crate, as well as any of its exclusive +# dependencies not shared by any other crates, would be ignored, as the target +# list here is effectively saying which targets you are building for. +targets = [ + # The triple can be any string, but only the target triples built in to + # rustc (as of 1.40) can be checked against actual config expressions + #"x86_64-unknown-linux-musl", + # You can also specify which target_features you promise are enabled for a + # particular target. target_features are currently not validated against + # the actual valid features supported by the target architecture. + #{ triple = "wasm32-unknown-unknown", features = ["atomics"] }, +] +# When creating the dependency graph used as the source of truth when checks are +# executed, this field can be used to prune crates from the graph, removing them +# from the view of cargo-deny. This is an extremely heavy hammer, as if a crate +# is pruned from the graph, all of its dependencies will also be pruned unless +# they are connected to another crate in the graph that hasn't been pruned, +# so it should be used with care. The identifiers are [Package ID Specifications] +# (https://doc.rust-lang.org/cargo/reference/pkgid-spec.html) +#exclude = [] +# If true, metadata will be collected with `--all-features`. Note that this can't +# be toggled off if true, if you want to conditionally enable `--all-features` it +# is recommended to pass `--all-features` on the cmd line instead +all-features = true +# If true, metadata will be collected with `--no-default-features`. The same +# caveat with `all-features` applies +no-default-features = false +# If set, these feature will be enabled when collecting metadata. If `--features` +# is specified on the cmd line they will take precedence over this option. +#features = [] + +# The output table provides options for how/if diagnostics are outputted +[output] +# When outputting inclusion graphs in diagnostics that include features, this +# option can be used to specify the depth at which feature edges will be added. +# This option is included since the graphs can be quite large and the addition +# of features from the crate(s) to all of the graph roots can be far too verbose. +# This option can be overridden via `--feature-depth` on the cmd line +feature-depth = 1 + +# This section is considered when running `cargo deny check advisories` +# More documentation for the advisories section can be found here: +# https://embarkstudios.github.io/cargo-deny/checks/advisories/cfg.html +[advisories] +# The path where the advisory databases are cloned/fetched into +#db-path = "$CARGO_HOME/advisory-dbs" +# The url(s) of the advisory databases to use +#db-urls = ["https://github.com/rustsec/advisory-db"] +# A list of advisory IDs to ignore. Note that ignored advisories will still +# output a note when they are encountered. +ignore = [ + #"RUSTSEC-0000-0000", + #{ id = "RUSTSEC-0000-0000", reason = "you can specify a reason the advisory is ignored" }, + #"a-crate-that-is-yanked@0.1.1", # you can also ignore yanked crate versions if you wish + #{ crate = "a-crate-that-is-yanked@0.1.1", reason = "you can specify why you are ignoring the yanked crate" }, +] +# If this is true, then cargo deny will use the git executable to fetch advisory database. +# If this is false, then it uses a built-in git library. +# Setting this to true can be helpful if you have special authentication requirements that cargo-deny does not support. +# See Git Authentication for more information about setting up git authentication. +#git-fetch-with-cli = true + +# This section is considered when running `cargo deny check licenses` +# More documentation for the licenses section can be found here: +# https://embarkstudios.github.io/cargo-deny/checks/licenses/cfg.html +[licenses] +# List of explicitly allowed licenses +# See https://spdx.org/licenses/ for list of possible licenses +# [possible values: any SPDX 3.11 short identifier (+ optional exception)]. +allow = ["MIT", "Apache-2.0", "Unicode-DFS-2016"] +# The confidence threshold for detecting a license from license text. +# The higher the value, the more closely the license text must be to the +# canonical license text of a valid SPDX license file. +# [possible values: any between 0.0 and 1.0]. +confidence-threshold = 0.8 +# Allow 1 or more licenses on a per-crate basis, so that particular licenses +# aren't accepted for every possible crate as with the normal allow list +exceptions = [ + # Each entry is the crate and version constraint, and its specific allow + # list + #{ allow = ["Zlib"], crate = "adler32" }, +] + +# Some crates don't have (easily) machine readable licensing information, +# adding a clarification entry for it allows you to manually specify the +# licensing information +#[[licenses.clarify]] +# The package spec the clarification applies to +#crate = "ring" +# The SPDX expression for the license requirements of the crate +#expression = "MIT AND ISC AND OpenSSL" +# One or more files in the crate's source used as the "source of truth" for +# the license expression. If the contents match, the clarification will be used +# when running the license check, otherwise the clarification will be ignored +# and the crate will be checked normally, which may produce warnings or errors +# depending on the rest of your configuration +#license-files = [ +# Each entry is a crate relative path, and the (opaque) hash of its contents +#{ path = "LICENSE", hash = 0xbd0eed23 } +#] + +[licenses.private] +# If true, ignores workspace crates that aren't published, or are only +# published to private registries. +# To see how to mark a crate as unpublished (to the official registry), +# visit https://doc.rust-lang.org/cargo/reference/manifest.html#the-publish-field. +ignore = false +# One or more private registries that you might publish crates to, if a crate +# is only published to private registries, and ignore is true, the crate will +# not have its license(s) checked +registries = [ + #"https://sekretz.com/registry +] + +# This section is considered when running `cargo deny check bans`. +# More documentation about the 'bans' section can be found here: +# https://embarkstudios.github.io/cargo-deny/checks/bans/cfg.html +[bans] +# Lint level for when multiple versions of the same crate are detected +multiple-versions = "warn" +# Lint level for when a crate version requirement is `*` +wildcards = "allow" +# The graph highlighting used when creating dotgraphs for crates +# with multiple versions +# * lowest-version - The path to the lowest versioned duplicate is highlighted +# * simplest-path - The path to the version with the fewest edges is highlighted +# * all - Both lowest-version and simplest-path are used +highlight = "all" +# The default lint level for `default` features for crates that are members of +# the workspace that is being checked. This can be overridden by allowing/denying +# `default` on a crate-by-crate basis if desired. +workspace-default-features = "allow" +# The default lint level for `default` features for external crates that are not +# members of the workspace. This can be overridden by allowing/denying `default` +# on a crate-by-crate basis if desired. +external-default-features = "allow" +# List of crates that are allowed. Use with care! +allow = [ + #"ansi_term@0.11.0", + #{ crate = "ansi_term@0.11.0", reason = "you can specify a reason it is allowed" }, +] +# List of crates to deny +deny = [ + #"ansi_term@0.11.0", + #{ crate = "ansi_term@0.11.0", reason = "you can specify a reason it is banned" }, + # Wrapper crates can optionally be specified to allow the crate when it + # is a direct dependency of the otherwise banned crate + #{ crate = "ansi_term@0.11.0", wrappers = ["this-crate-directly-depends-on-ansi_term"] }, +] + +# List of features to allow/deny +# Each entry the name of a crate and a version range. If version is +# not specified, all versions will be matched. +#[[bans.features]] +#crate = "reqwest" +# Features to not allow +#deny = ["json"] +# Features to allow +#allow = [ +# "rustls", +# "__rustls", +# "__tls", +# "hyper-rustls", +# "rustls", +# "rustls-pemfile", +# "rustls-tls-webpki-roots", +# "tokio-rustls", +# "webpki-roots", +#] +# If true, the allowed features must exactly match the enabled feature set. If +# this is set there is no point setting `deny` +#exact = true + +# Certain crates/versions that will be skipped when doing duplicate detection. +skip = [ + #"ansi_term@0.11.0", + #{ crate = "ansi_term@0.11.0", reason = "you can specify a reason why it can't be updated/removed" }, +] +# Similarly to `skip` allows you to skip certain crates during duplicate +# detection. Unlike skip, it also includes the entire tree of transitive +# dependencies starting at the specified crate, up to a certain depth, which is +# by default infinite. +skip-tree = [ + #"ansi_term@0.11.0", # will be skipped along with _all_ of its direct and transitive dependencies + #{ crate = "ansi_term@0.11.0", depth = 20 }, +] + +# This section is considered when running `cargo deny check sources`. +# More documentation about the 'sources' section can be found here: +# https://embarkstudios.github.io/cargo-deny/checks/sources/cfg.html +[sources] +# Lint level for what to happen when a crate from a crate registry that is not +# in the allow list is encountered +unknown-registry = "warn" +# Lint level for what to happen when a crate from a git repository that is not +# in the allow list is encountered +unknown-git = "warn" +# List of URLs for allowed crate registries. Defaults to the crates.io index +# if not specified. If it is specified but empty, no registries are allowed. +allow-registry = ["https://github.com/rust-lang/crates.io-index"] +# List of URLs for allowed Git repositories +allow-git = [] + +[sources.allow-org] +# github.com organizations to allow git sources for +github = [] +# gitlab.com organizations to allow git sources for +gitlab = [] +# bitbucket.org organizations to allow git sources for +bitbucket = [] diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..17ec4fc --- /dev/null +++ b/src/main.rs @@ -0,0 +1,92 @@ +use std::{ + io::{self, BufRead, BufReader, Write}, + path::PathBuf, +}; + +use anyhow::Result; +use bpe_tokenizer::BytePairEncoder; +use clap::{Parser, ArgAction}; + +/// A simple CLI for tokenizing text input using Byte Pair Encoding (BPE). +/// +/// This application accepts text from stdin and emits BPE tokens to stdout. +/// +#[derive(Parser)] +#[command(version, about, long_about, author)] +#[group(multiple = false)] +struct Cli { + /// Use built-in small vocabulary (100k). + #[arg(short, long, action = ArgAction::SetTrue)] + small: Option, + + /// Use built-in medium vocabulary (320k) [default] + #[arg(short, long, action = ArgAction::SetTrue, default_value = "true")] + medium: Option, + + /// Use built-in large vocabulary (1M). + #[arg(short, long, action = ArgAction::SetTrue)] + large: Option, + + /// Path to custom BPE vocabulary file. + #[arg(short, long, value_name = "FILE")] + vocab: Option, +} + +fn main() -> Result<()> { + // Parse CLI arguments + let cli = Cli::parse(); + + // Load vocabulary from file + let vocab = if let Some(vocab_path) = cli.vocab.as_deref() { + match BytePairEncoder::new_from_file(vocab_path.to_str().unwrap()) { + Ok(vocab) => vocab, + Err(err) => { + eprintln!("Error loading vocabulary file: {}", err); + std::process::exit(1); + } + } + } else if cli.small.unwrap_or(false) { + match BytePairEncoder::new_default_small() { + Ok(bpe) => bpe, + Err(err) => { + eprintln!("Error initializing default-small vocabulary file: {}", err); + std::process::exit(1); + } + } + } else if cli.large.unwrap_or(false) { + match BytePairEncoder::new_default_large() { + Ok(bpe) => bpe, + Err(err) => { + eprintln!("Error initializing default-large vocabulary file: {}", err); + std::process::exit(1); + } + } + } else { + match BytePairEncoder::new_default_medium() { + Ok(bpe) => bpe, + Err(err) => { + eprintln!("Error initializing default-medium vocabulary file: {}", err); + std::process::exit(1); + } + } + }; + + // Create a buffer reader for stdin + let reader = BufReader::new(io::stdin().lock()); + + // Iterate over the lines of stdin, simultaneously tokenizing and emitting to stdout + for line in reader.lines() { + let line = line?; + + // Tokenize each line + for token in vocab.tokenize_iter(&line) { + // Emit token + println!("{}", token); + + // Ensure output is flushed immediately + io::stdout().flush()?; + } + } + + Ok(()) +}