initial commit

This commit is contained in:
Andrew Gallant 2016-02-27 11:07:26 -05:00
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.gitignore vendored Normal file
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.*.swp
tags
target
*.lock
tmp
*.csv
*.fst
*-got
*.csv.idx
words
98m*
dict
test
months

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language: rust
rust:
- stable
- beta
- nightly
script:
- cargo build --verbose
- cargo doc
- cargo test --verbose
- if [ "$TRAVIS_RUST_VERSION" = "nightly" ]; then
cargo bench --verbose;
fi

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This project is dual-licensed under the Unlicense and MIT licenses.
You may use this code under the terms of either license.

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Cargo.toml Normal file
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[package]
name = "rep"
version = "0.1.0" #:version
authors = ["Andrew Gallant <jamslam@gmail.com>"]
description = """
Line oriented search tool using Rust's regex library.
"""
documentation = "https://github.com/BurntSushi/rep"
homepage = "https://github.com/BurntSushi/rep"
repository = "https://github.com/BurntSushi/rep"
readme = "README.md"
keywords = ["regex", "grep", "egrep", "search", "pattern"]
license = "Unlicense/MIT"
[dependencies]
docopt = "0.6"
regex = { version = "0.1", path = "/home/andrew/rust/regex" }
rustc-serialize = "0.3"
[profile.release]
debug = true

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The MIT License (MIT)
Copyright (c) 2015 Andrew Gallant
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.

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fst
===
This crate provides a fast implementation of ordered sets and maps using finite
state machines. In particular, it makes use of finite state transducers to map
keys to values as the machine is executed. Using finite state machines as data
structures enables us to store keys in a compact format that is also easily
searchable. For example, this crate levages memory maps to make range queries,
regular expression queries and Levenshtein (edit) distance queries very fast.
Check out my blog post
[Index 1,600,000,000 Keys with Automata and
Rust](http://blog.burntsushi.net/transducers/)
for extensive background, examples and experiments.
[![Linux build status](https://api.travis-ci.org/BurntSushi/fst.png)](https://travis-ci.org/BurntSushi/fst)
[![Windows build status](https://ci.appveyor.com/api/projects/status/github/BurntSushi/fst?svg=true)](https://ci.appveyor.com/project/BurntSushi/fst)
[![](http://meritbadge.herokuapp.com/fst)](https://crates.io/crates/fst)
Dual-licensed under MIT or the [UNLICENSE](http://unlicense.org).
### Documentation
[Full API documentation and examples.](http://burntsushi.net/rustdoc/fst/)
### Installation
Simply add a corresponding entry to your `Cargo.toml` dependency list:
```ignore
[dependencies]
fst = "0.1"
```
And add this to your crate root:
```ignore
extern crate fst;
```
### Example
This example demonstrates building a set in memory and executing a fuzzy query
against it. Check out the documentation for a lot more examples!
```rust
use fst::{IntoStreamer, Streamer, Levenshtein, Set};
// A convenient way to create sets in memory.
let keys = vec!["fa", "fo", "fob", "focus", "foo", "food", "foul"];
let set = try!(Set::from_iter(keys));
// Build our fuzzy query.
let lev = try!(Levenshtein::new("foo", 1));
// Apply our fuzzy query to the set we built.
let mut stream = set.search(lev).into_stream();
let keys = try!(stream.into_strs());
assert_eq!(keys, vec!["fo", "fob", "foo", "food"]);
```

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This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
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 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.
For more information, please refer to <http://unlicense.org/>

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environment:
matrix:
- TARGET: x86_64-pc-windows-msvc
- TARGET: i686-pc-windows-gnu
install:
- ps: Start-FileDownload "https://static.rust-lang.org/dist/rust-nightly-${env:TARGET}.exe"
- rust-nightly-%TARGET%.exe /VERYSILENT /NORESTART /DIR="C:\Program Files (x86)\Rust"
- SET PATH=%PATH%;C:\Program Files (x86)\Rust\bin
- SET PATH=%PATH%;C:\MinGW\bin
- rustc -V
- cargo -V
build: false
test_script:
- cargo build --verbose
- cargo test --verbose

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--langdef=Rust
--langmap=Rust:.rs
--regex-Rust=/^[ \t]*(#\[[^\]]\][ \t]*)*(pub[ \t]+)?(extern[ \t]+)?("[^"]+"[ \t]+)?(unsafe[ \t]+)?fn[ \t]+([a-zA-Z0-9_]+)/\6/f,functions,function definitions/
--regex-Rust=/^[ \t]*(pub[ \t]+)?type[ \t]+([a-zA-Z0-9_]+)/\2/T,types,type definitions/
--regex-Rust=/^[ \t]*(pub[ \t]+)?enum[ \t]+([a-zA-Z0-9_]+)/\2/g,enum,enumeration names/
--regex-Rust=/^[ \t]*(pub[ \t]+)?struct[ \t]+([a-zA-Z0-9_]+)/\2/s,structure names/
--regex-Rust=/^[ \t]*(pub[ \t]+)?mod[ \t]+([a-zA-Z0-9_]+)/\2/m,modules,module names/
--regex-Rust=/^[ \t]*(pub[ \t]+)?static[ \t]+([a-zA-Z0-9_]+)/\2/c,consts,static constants/
--regex-Rust=/^[ \t]*(pub[ \t]+)?trait[ \t]+([a-zA-Z0-9_]+)/\2/t,traits,traits/
--regex-Rust=/^[ \t]*(pub[ \t]+)?impl([ \t\n]+<.*>)?[ \t]+([a-zA-Z0-9_]+)/\3/i,impls,trait implementations/
--regex-Rust=/^[ \t]*macro_rules![ \t]+([a-zA-Z0-9_]+)/\1/d,macros,macro definitions/

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au BufWritePost *.rs silent!make ctags > /dev/null 2>&1

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#![allow(dead_code)]
extern crate docopt;
extern crate regex;
extern crate rustc_serialize;
const USAGE: &'static str = "
Usage: rep [options] <pattern> [<file> ...]
";
use std::error::Error;
use std::io::{self, BufRead, Write};
use std::process;
use std::result;
use docopt::Docopt;
use regex::internal::{ExecBuilder, Search};
type Result<T> = result::Result<T, Box<Error + Send + Sync>>;
#[derive(RustcDecodable)]
struct Args {
arg_pattern: String,
arg_file: Vec<String>,
}
fn main() {
let args = Docopt::new(USAGE).and_then(|d| d.decode())
.unwrap_or_else(|e| e.exit());
match run(&args) {
Ok(count) if count == 0 => process::exit(1),
Ok(_) => process::exit(0),
Err(err) => {
let _ = writeln!(&mut io::stderr(), "{}", err);
process::exit(1);
}
}
}
fn run(args: &Args) -> Result<u64> {
let _stdin = io::stdin();
let mut rdr = io::BufReader::new(_stdin.lock());
let mut wtr = io::BufWriter::new(io::stdout());
let mut count = 0;
let mut nline = 0;
let mut line = vec![];
let re = try!(ExecBuilder::new(&args.arg_pattern).only_utf8(false).build());
let mut search = Search {
captures: &mut [],
matches: &mut [false],
};
loop {
line.clear();
let n = try!(rdr.read_until(b'\n', &mut line));
if n == 0 {
break;
}
nline += 1;
if line.last().map_or(false, |&b| b == b'\n') {
line.pop().unwrap();
}
search.matches[0] = false;
if re.exec(&mut search, &line, 0) {
count += 1;
try!(wtr.write(nline.to_string().as_bytes()));
try!(wtr.write(&[b':']));
try!(wtr.write(&line));
try!(wtr.write(&[b'\n']));
}
}
Ok(count)
}