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levenshtein-edit-distance

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Comparing version 2.0.2 to 2.0.3

license

88

cli.js
#!/usr/bin/env node
'use strict';
'use strict'
var pack = require('./package.json');
var levenshtein = require('./');
var pack = require('./package.json')
var levenshtein = require('.')
var argv = process.argv.slice(2);
var insensitive = false;
var argv = process.argv.slice(2)
var insensitives = ['--insensitive', '-i']
var insensitive = false
['--insensitive', '-i'].forEach(function (flag) {
var pos = argv.indexOf(flag);
insensitives.forEach(function(flag) {
var pos = argv.indexOf(flag)
if (pos !== -1) {
argv.splice(pos, 1);
insensitive = true;
argv.splice(pos, 1)
insensitive = true
}
});
})
if (
argv.indexOf('--help') !== -1 ||
argv.indexOf('-h') !== -1
) {
console.log(help());
} else if (
argv.indexOf('--version') !== -1 ||
argv.indexOf('-v') !== -1
) {
console.log(pack.version);
if (argv.indexOf('--help') !== -1 || argv.indexOf('-h') !== -1) {
console.log(help())
} else if (argv.indexOf('--version') !== -1 || argv.indexOf('-v') !== -1) {
console.log(pack.version)
} else if (argv.length === 0) {
process.stdin.resume();
process.stdin.setEncoding('utf8');
process.stdin.on('data', function (data) {
getDistance(data.trim());
});
process.stdin.resume()
process.stdin.setEncoding('utf8')
process.stdin.on('data', function(data) {
getDistance(data.trim())
})
} else {
getDistance(argv.join(' '));
getDistance(argv.join(' '))
}

@@ -41,32 +36,35 @@

'',
'Usage: ' + pack.name + ' [options] <word> <word>',
' Usage: ' + pack.name + ' [options] <word> <word>',
'',
pack.description,
' ' + pack.description,
'',
'Options:',
' Options:',
'',
' -h, --help output usage information',
' -v, --version output version number',
' -i, --insensitive ignore casing',
' -h, --help output usage information',
' -v, --version output version number',
' -i, --insensitive ignore casing',
'',
'Usage:',
' Usage:',
'',
'# output distance',
'$ ' + pack.name + ' sitting kitten',
'# ' + distance(['sitting', 'kitten']),
' # output distance',
' $ ' + pack.name + ' sitting kitten',
' ' + distance(['sitting', 'kitten']),
'',
'# output distance from stdin',
'$ echo "saturday,sunday" | ' + pack.name,
'# ' + distance(['saturday', 'sunday'])
].join('\n ') + '\n';
' # output distance from stdin',
' $ echo "saturday,sunday" | ' + pack.name,
' ' + distance(['saturday', 'sunday'])
].join('\n')
}
function getDistance(value) {
var values = value.split(',').join(' ').split(/\s+/);
var values = value
.split(',')
.join(' ')
.split(/\s+/)
if (values.length === 2) {
console.log(distance(values));
console.log(distance(values))
} else {
process.stderr.write(help());
process.exit(1);
process.stderr.write(help())
process.exit(1)
}

@@ -76,3 +74,3 @@ }

function distance(values) {
return levenshtein(values[0], values[1], insensitive);
return levenshtein(values[0], values[1], insensitive)
}

@@ -1,64 +0,67 @@

'use strict';
'use strict'
module.exports = levenshtein;
module.exports = levenshtein
/* eslint-disable no-nested-ternary */
var cache = []
var codes = []
var cache = [];
var codes = [];
function levenshtein(value, other, insensitive) {
var length;
var lengthOther;
var code;
var result;
var distance;
var distanceOther;
var index;
var indexOther;
var length
var lengthOther
var code
var result
var distance
var distanceOther
var index
var indexOther
if (value === other) {
return 0;
return 0
}
length = value.length;
lengthOther = other.length;
length = value.length
lengthOther = other.length
if (length === 0) {
return lengthOther;
return lengthOther
}
if (lengthOther === 0) {
return length;
return length
}
if (insensitive) {
value = value.toLowerCase();
other = other.toLowerCase();
value = value.toLowerCase()
other = other.toLowerCase()
}
index = 0;
index = 0
while (index < length) {
codes[index] = value.charCodeAt(index);
cache[index] = ++index;
codes[index] = value.charCodeAt(index)
cache[index] = ++index
}
indexOther = 0;
indexOther = 0
while (indexOther < lengthOther) {
code = other.charCodeAt(indexOther);
result = distance = indexOther++;
index = -1;
code = other.charCodeAt(indexOther)
result = distance = indexOther++
index = -1
while (++index < length) {
distanceOther = code === codes[index] ? distance : distance + 1;
distance = cache[index];
cache[index] = result = distance > result ?
distanceOther > result ? result + 1 : distanceOther :
distanceOther > distance ? distance + 1 : distanceOther;
distanceOther = code === codes[index] ? distance : distance + 1
distance = cache[index]
cache[index] = result =
distance > result
? distanceOther > result
? result + 1
: distanceOther
: distanceOther > distance
? distance + 1
: distanceOther
}
}
return result;
return result
}
{
"name": "levenshtein-edit-distance",
"version": "2.0.2",
"version": "2.0.3",
"description": "Levenshtein edit distance. No cruft. Real fast.",

@@ -28,20 +28,20 @@ "license": "MIT",

"devDependencies": {
"browserify": "^14.0.0",
"esmangle": "^1.0.0",
"execa": "^0.8.0",
"nyc": "^11.0.0",
"remark-cli": "^4.0.0",
"remark-preset-wooorm": "^3.0.0",
"browserify": "^16.0.0",
"execa": "^1.0.0",
"nyc": "^13.0.0",
"prettier": "^1.14.2",
"remark-cli": "^5.0.0",
"remark-preset-wooorm": "^4.0.0",
"tape": "^4.4.0",
"xo": "^0.18.0"
"tinyify": "^2.4.3",
"xo": "^0.22.0"
},
"scripts": {
"build-md": "remark . -qfo",
"build-bundle": "browserify index.js -s levenshteinEditDistance > levenshtein-edit-distance.js",
"build-mangle": "esmangle levenshtein-edit-distance.js > levenshtein-edit-distance.min.js",
"build": "npm run build-md && npm run build-bundle && npm run build-mangle",
"lint": "xo",
"format": "remark . -qfo && prettier --write \"**/*.js\" && xo --fix",
"build-bundle": "browserify . -s levenshteinEditDistance -o levenshtein-edit-distance.js",
"build-mangle": "browserify . -s levenshteinEditDistance -p tinyify -o levenshtein-edit-distance.min.js",
"build": "npm run build-bundle && npm run build-mangle",
"test-api": "node test",
"test-coverage": "nyc --reporter lcov tape test.js",
"test": "npm run build && npm run lint && npm run test-coverage"
"test": "npm run format && npm run build && npm run test-coverage"
},

@@ -54,4 +54,12 @@ "nyc": {

},
"prettier": {
"tabWidth": 2,
"useTabs": false,
"singleQuote": true,
"bracketSpacing": false,
"semi": false,
"trailingComma": "none"
},
"xo": {
"space": true,
"prettier": true,
"esnext": false,

@@ -58,0 +66,0 @@ "rules": {

@@ -17,17 +17,17 @@ # levenshtein-edit-distance [![Build Status][travis-badge]][travis] [![Coverage Status][codecov-badge]][codecov]

```js
var levenshtein = require('levenshtein-edit-distance');
var levenshtein = require('levenshtein-edit-distance')
levenshtein('levenshtein', 'levenshtein'); //=> 0
levenshtein('sitting', 'kitten'); //=> 3
levenshtein('gumbo', 'gambol'); //=> 2
levenshtein('saturday', 'sunday'); //=> 3
levenshtein('levenshtein', 'levenshtein') // => 0
levenshtein('sitting', 'kitten') // => 3
levenshtein('gumbo', 'gambol') // => 2
levenshtein('saturday', 'sunday') // => 3
/* Case sensitive! */
levenshtein('DwAyNE', 'DUANE') !== levenshtein('dwayne', 'DuAnE'); //=> true
levenshtein('DwAyNE', 'DUANE') !== levenshtein('dwayne', 'DuAnE') // => true
/* Insensitive: */
levenshtein('DwAyNE', 'DUANE', true) === levenshtein('dwayne', 'DuAnE', true); //=> true
levenshtein('DwAyNE', 'DUANE', true) === levenshtein('dwayne', 'DuAnE', true) // => true
/* Order insensitive */
levenshtein('aarrgh', 'aargh') === levenshtein('aargh', 'aarrgh'); //=> true
levenshtein('aarrgh', 'aargh') === levenshtein('aargh', 'aarrgh') // => true
```

@@ -75,11 +75,11 @@

— Rust API
* [`lancaster-stemmer`](https://github.com/wooorm/lancaster-stemmer)
* [`lancaster-stemmer`](https://github.com/words/lancaster-stemmer)
— Lancaster stemming algorithm
* [`double-metaphone`](https://github.com/wooorm/double-metaphone)
* [`double-metaphone`](https://github.com/words/double-metaphone)
— Double Metaphone implementation
* [`soundex-code`](https://github.com/wooorm/soundex-code)
* [`soundex-code`](https://github.com/words/soundex-code)
— Fast Soundex implementation
* [`dice-coefficient`](https://github.com/wooorm/dice-coefficient)
* [`dice-coefficient`](https://github.com/words/dice-coefficient)
— Sørensen–Dice coefficient
* [`syllable`](https://github.com/wooorm/syllable)
* [`syllable`](https://github.com/words/syllable)
— Syllable count in an English word

@@ -101,3 +101,3 @@

[license]: LICENSE
[license]: license

@@ -104,0 +104,0 @@ [author]: http://wooorm.com

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