bravey
Version:
A simple JavaScript NLP-like library to help you creating your own bot.
320 lines (299 loc) • 12 kB
HTML
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Source: stemmers/StemmerSupport.js</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
<link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css">
</head>
<body>
<div id="main">
<h1 class="page-title">Source: stemmers/StemmerSupport.js</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code>/**
* From: https://github.com/fortnightlabs/snowball-js
*/
Bravey.stemmerSupport = {
Among: function(s, substring_i, result, method) {
this.toCharArray = function(s) {
var sLength = s.length,
charArr = new Array(sLength);
for (var i = 0; i < sLength; i++)
charArr[i] = s.charCodeAt(i);
return charArr;
};
if ((!s && s != "") || (!substring_i && (substring_i != 0)) || !result)
throw ("Bad Among initialisation: s:" + s + ", substring_i: " +
substring_i + ", result: " + result);
this.s_size = s.length;
this.s = this.toCharArray(s);
this.substring_i = substring_i;
this.result = result;
this.method = method;
},
SnowballProgram: function() {
var current;
return {
bra: 0,
ket: 0,
limit: 0,
cursor: 0,
limit_backward: 0,
setCurrent: function(word) {
current = word;
this.cursor = 0;
this.limit = word.length;
this.limit_backward = 0;
this.bra = this.cursor;
this.ket = this.limit;
},
getCurrent: function() {
var result = current;
current = null;
return result;
},
in_grouping: function(s, min, max) {
if (this.cursor < this.limit) {
var ch = current.charCodeAt(this.cursor);
if (ch <= max && ch >= min) {
ch -= min;
if (s[ch >> 3] & (0X1 << (ch & 0X7))) {
this.cursor++;
return true;
}
}
}
return false;
},
in_grouping_b: function(s, min, max) {
if (this.cursor > this.limit_backward) {
var ch = current.charCodeAt(this.cursor - 1);
if (ch <= max && ch >= min) {
ch -= min;
if (s[ch >> 3] & (0X1 << (ch & 0X7))) {
this.cursor--;
return true;
}
}
}
return false;
},
out_grouping: function(s, min, max) {
if (this.cursor < this.limit) {
var ch = current.charCodeAt(this.cursor);
if (ch > max || ch < min) {
this.cursor++;
return true;
}
ch -= min;
if (!(s[ch >> 3] & (0X1 << (ch & 0X7)))) {
this.cursor++;
return true;
}
}
return false;
},
out_grouping_b: function(s, min, max) {
if (this.cursor > this.limit_backward) {
var ch = current.charCodeAt(this.cursor - 1);
if (ch > max || ch < min) {
this.cursor--;
return true;
}
ch -= min;
if (!(s[ch >> 3] & (0X1 << (ch & 0X7)))) {
this.cursor--;
return true;
}
}
return false;
},
eq_s: function(s_size, s) {
if (this.limit - this.cursor < s_size)
return false;
for (var i = 0; i < s_size; i++)
if (current.charCodeAt(this.cursor + i) != s.charCodeAt(i))
return false;
this.cursor += s_size;
return true;
},
eq_s_b: function(s_size, s) {
if (this.cursor - this.limit_backward < s_size)
return false;
for (var i = 0; i < s_size; i++)
if (current.charCodeAt(this.cursor - s_size + i) != s
.charCodeAt(i))
return false;
this.cursor -= s_size;
return true;
},
find_among: function(v, v_size) {
var i = 0,
j = v_size,
c = this.cursor,
l = this.limit,
common_i = 0,
common_j = 0,
first_key_inspected = false;
while (true) {
var k = i + ((j - i) >> 1),
diff = 0,
common = common_i < common_j ?
common_i :
common_j,
w = v[k];
for (var i2 = common; i2 < w.s_size; i2++) {
if (c + common == l) {
diff = -1;
break;
}
diff = current.charCodeAt(c + common) - w.s[i2];
if (diff)
break;
common++;
}
if (diff < 0) {
j = k;
common_j = common;
} else {
i = k;
common_i = common;
}
if (j - i <= 1) {
if (i > 0 || j == i || first_key_inspected)
break;
first_key_inspected = true;
}
}
while (true) {
var w = v[i];
if (common_i >= w.s_size) {
this.cursor = c + w.s_size;
if (!w.method)
return w.result;
var res = w.method();
this.cursor = c + w.s_size;
if (res)
return w.result;
}
i = w.substring_i;
if (i < 0)
return 0;
}
},
find_among_b: function(v, v_size) {
var i = 0,
j = v_size,
c = this.cursor,
lb = this.limit_backward,
common_i = 0,
common_j = 0,
first_key_inspected = false;
while (true) {
var k = i + ((j - i) >> 1),
diff = 0,
common = common_i < common_j ?
common_i :
common_j,
w = v[k];
for (var i2 = w.s_size - 1 - common; i2 >= 0; i2--) {
if (c - common == lb) {
diff = -1;
break;
}
diff = current.charCodeAt(c - 1 - common) - w.s[i2];
if (diff)
break;
common++;
}
if (diff < 0) {
j = k;
common_j = common;
} else {
i = k;
common_i = common;
}
if (j - i <= 1) {
if (i > 0 || j == i || first_key_inspected)
break;
first_key_inspected = true;
}
}
while (true) {
var w = v[i];
if (common_i >= w.s_size) {
this.cursor = c - w.s_size;
if (!w.method)
return w.result;
var res = w.method();
this.cursor = c - w.s_size;
if (res)
return w.result;
}
i = w.substring_i;
if (i < 0)
return 0;
}
},
replace_s: function(c_bra, c_ket, s) {
var adjustment = s.length - (c_ket - c_bra),
left = current
.substring(0, c_bra),
right = current.substring(c_ket);
current = left + s + right;
this.limit += adjustment;
if (this.cursor >= c_ket)
this.cursor += adjustment;
else if (this.cursor > c_bra)
this.cursor = c_bra;
return adjustment;
},
slice_check: function() {
if (this.bra < 0 || this.bra > this.ket || this.ket > this.limit ||
this.limit > current.length)
throw ("faulty slice operation");
},
slice_from: function(s) {
this.slice_check();
this.replace_s(this.bra, this.ket, s);
},
slice_del: function() {
this.slice_from("");
},
insert: function(c_bra, c_ket, s) {
var adjustment = this.replace_s(c_bra, c_ket, s);
if (c_bra <= this.bra)
this.bra += adjustment;
if (c_bra <= this.ket)
this.ket += adjustment;
},
slice_to: function() {
this.slice_check();
return current.substring(this.bra, this.ket);
},
eq_v_b: function(s) {
return this.eq_s_b(s.length, s);
}
};
}
};</code></pre>
</article>
</section>
</div>
<nav>
<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="Bravey.ApiAiAdapter.html">ApiAiAdapter</a></li><li><a href="Bravey.ContextManager.html">ContextManager</a></li><li><a href="Bravey.DocumentClassifier.html">DocumentClassifier</a></li><li><a href="Bravey.EMailEntityRecognizer.html">EMailEntityRecognizer</a></li><li><a href="Bravey.Filter.BasicFilter.html">BasicFilter</a></li><li><a href="Bravey.FreeTextEntityRecognizer.html">FreeTextEntityRecognizer</a></li><li><a href="Bravey.Language.EN.DateEntityRecognizer.html">DateEntityRecognizer</a></li><li><a href="Bravey.Language.EN.FreeTextEntityRecognizer.html">FreeTextEntityRecognizer</a></li><li><a href="Bravey.Language.EN.NumberEntityRecognizer.html">NumberEntityRecognizer</a></li><li><a href="Bravey.Language.EN.Stemmer.html">Stemmer</a></li><li><a href="Bravey.Language.EN.TimeEntityRecognizer.html">TimeEntityRecognizer</a></li><li><a href="Bravey.Language.EN.TimePeriodEntityRecognizer.html">TimePeriodEntityRecognizer</a></li><li><a href="Bravey.Language.IT.DateEntityRecognizer.html">DateEntityRecognizer</a></li><li><a href="Bravey.Language.IT.FreeTextEntityRecognizer.html">FreeTextEntityRecognizer</a></li><li><a href="Bravey.Language.IT.NumberEntityRecognizer.html">NumberEntityRecognizer</a></li><li><a href="Bravey.Language.IT.Stemmer.html">Stemmer</a></li><li><a href="Bravey.Language.IT.TimeEntityRecognizer.html">TimeEntityRecognizer</a></li><li><a href="Bravey.Language.IT.TimePeriodEntityRecognizer.html">TimePeriodEntityRecognizer</a></li><li><a href="Bravey.Language.PT.DateEntityRecognizer.html">DateEntityRecognizer</a></li><li><a href="Bravey.Language.PT.FreeTextEntityRecognizer.html">FreeTextEntityRecognizer</a></li><li><a href="Bravey.Language.PT.NumberEntityRecognizer.html">NumberEntityRecognizer</a></li><li><a href="Bravey.Language.PT.Stemmer.html">Stemmer</a></li><li><a href="Bravey.Language.PT.TimeEntityRecognizer.html">TimeEntityRecognizer</a></li><li><a href="Bravey.Language.PT.TimePeriodEntityRecognizer.html">TimePeriodEntityRecognizer</a></li><li><a href="Bravey.Nlp.Fuzzy.html">Fuzzy</a></li><li><a href="Bravey.Nlp.Sequential.html">Sequential</a></li><li><a href="Bravey.NumberEntityRecognizer.html">NumberEntityRecognizer</a></li><li><a href="Bravey.RegexEntityRecognizer.html">RegexEntityRecognizer</a></li><li><a href="Bravey.SessionManager.InMemorySessionManager.html">InMemorySessionManager</a></li><li><a href="Bravey.StringEntityRecognizer.html">StringEntityRecognizer</a></li><li><a href="Bravey.Text.RegexMap.html">RegexMap</a></li></ul><h3>Namespaces</h3><ul><li><a href="Bravey.html">Bravey</a></li><li><a href="Bravey.Data.html">Data</a></li><li><a href="Bravey.Date.html">Date</a></li><li><a href="Bravey.File.html">File</a></li><li><a href="Bravey.Filter.html">Filter</a></li><li><a href="Bravey.Language.html">Language</a></li><li><a href="Bravey.Language.EN.html">EN</a></li><li><a href="Bravey.Language.IT.html">IT</a></li><li><a href="Bravey.Language.PT.html">PT</a></li><li><a href="Bravey.Nlp.html">Nlp</a></li><li><a href="Bravey.SessionManager.html">SessionManager</a></li><li><a href="Bravey.Text.html">Text</a></li></ul><h3><a href="global.html">Global</a></h3>
</nav>
<br class="clear">
<footer>
Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.3</a>
</footer>
<script> prettyPrint(); </script>
<script src="scripts/linenumber.js"> </script>
</body>
</html>