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compressor.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<title>Hyphenator.js – pattern compressor</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<style type="text/css">
body {
font: 11px/1.8em Verdana;
margin-left: 20%;
margin-right:20%;
background-color:#EEEEEE;
width:60em;
}
fieldset {
background-color:#FFFFFF;
border:1px solid #AAAAAA;
margin:1em 0em;
padding: 0em 1em 2em 1em;
}
h1 {
background-color:#FFFFFF;
border:1px solid #AAAAAA;
margin:1em 0em;
color: #404041;
text-align:right;
}
img {
vertical-align:middle;
}
.info_btn {
vertical-align:text-bottom;
cursor:pointer;
}
.info_box {
display:none;
border:1px dashed #AAAAAA;
padding:0.2em 1em;
font-style:italic;
}
.multicol {
text-align:justify;
width: 28em;
float:left;
margin:0em 1em;
}
ul.multicol {
width:21em;
padding:0;
margin:0;
}
li {
list-style:none;
}
form {
clear: both;
padding-top:2em;
}
legend {
border:1px solid #AAAAAA;
background-color:#FFFFFF;
padding:0em 1em;
font-style: italic;
font-weight: 200;
}
input {
margin-right:1em;
}
textarea {
width:100%;
}
.grayedout {
border: 1px solid grey;
color: grey;
}
#fields {
float: left;
margin-right: 10px;
}
#desc {
font-size: 12px;
}
</style>
<script type="text/javascript" src="Hyphenator.js"></script>
<script type="text/javascript">
var newpatterns, specialChars;
function lengthSort(a, b) {
'use strict';
return a.length - b.length;
}
function output2String(meta) {
'use strict';
var tmp, len;
tmp = 'Hyphenator.languages["' + document.getElementsByName('language')[0].value + '"] = {\n';
tmp += '\tleftmin : ' + document.getElementsByName('leftmin')[0].value + ',\n';
tmp += '\trightmin : ' + document.getElementsByName('rightmin')[0].value + ',\n';
tmp += '\tspecialChars : "' + specialChars + '",\n';
tmp += '\tpatterns : {\n';
for (len in newpatterns) {
if (newpatterns.hasOwnProperty(len)) {
tmp += '\t\t' + len + ' : "' + newpatterns[len] + '",\n';
}
}
tmp = tmp.slice(0, -2);
tmp += '\n\t},\n';
tmp += '\tpatternChars : "' + meta.patternChars + '",\n';
tmp += '\tpatternArrayLength : ' + meta.patternArrayLength + ',\n';
tmp += '\tvalueStoreLength : ' + meta.valueStoreLength + '\n};';
document.getElementsByName('newpattern')[0].value = tmp;
}
function createAndMeasure() {
'use strict';
var valueStore = (function () {
var ValueStore = function () {
this.keys = [];
this.startIndex = 1;
this.actualIndex = 2;
this.lastValueIndex = 2;
this.add = function (p) {
this.keys[this.actualIndex] = p;
if (p !== 0) {
this.lastValueIndex = this.actualIndex;
}
this.actualIndex += 1;
};
this.finalize = function () {
var start = this.startIndex;
this.keys[start] = this.lastValueIndex - start;
this.startIndex = this.lastValueIndex + 1;
this.actualIndex = this.startIndex + 1;
return start;
};
};
return new ValueStore();
}()),
indexedTrie = [],
charMap = (function () {
var CharMap = function () {
this.keys = [];
this.values = {};
this.add = function (newValue) {
if (!this.values[newValue]) {
this.keys.push(newValue);
this.values[newValue] = this.keys.length - 1;
}
};
};
return new CharMap();
}()),
collected = {},
collectPatternChars = function (patterns) {
var chr = "",
i;
for (i = 0; i < patterns.length; i += 1) {
chr = patterns.charAt(i);
if (!chr.match(/\d/) && chr !== " " && !collected.hasOwnProperty(chr)) {
collected[chr] = true;
}
}
},
patternChars,
charMapValues,
steps,
indexedTrieMaxRow,
extract = function (patternSizeInt, patterns) {
var charPos = 0,
charCode = 0,
prevMappedCharCode = 0,
mappedCharCode = 0,
row = 0,
nextRow = 0,
prevWasPosition = false;
for (charPos = 0; charPos < patterns.length; charPos += 1) {
charCode = patterns.charCodeAt(charPos);
if ((charPos + 1) % patternSizeInt !== 0) {
//more to come…
if (charCode >= 49 && charCode <= 57) {
valueStore.add(charCode - 48);
prevWasPosition = true;
} else {
if (!prevWasPosition) {
valueStore.add(0);
}
prevWasPosition = false;
mappedCharCode = charMapValues[charCode];
if (nextRow === -1) {
nextRow = indexedTrieMaxRow + steps;
indexedTrieMaxRow = nextRow;
indexedTrie[row + prevMappedCharCode * 2] = nextRow;
}
row = nextRow;
if (indexedTrie[row + mappedCharCode * 2] !== undefined && indexedTrie[row + mappedCharCode * 2] !== 0) {
nextRow = indexedTrie[row + mappedCharCode * 2];
} else {
indexedTrie[row + mappedCharCode * 2] = -1;
nextRow = -1;
}
prevMappedCharCode = mappedCharCode;
}
} else {
//last part of pattern
if (charCode >= 49 && charCode <= 57) {
valueStore.add(charCode - 48);
indexedTrie[row + mappedCharCode * 2 + 1] = valueStore.finalize();
} else {
if (!prevWasPosition) {
valueStore.add(0);
}
valueStore.add(0);
mappedCharCode = charMapValues[charCode];
if (nextRow === -1) {
nextRow = indexedTrieMaxRow + steps;
indexedTrieMaxRow = nextRow;
indexedTrie[row + prevMappedCharCode * 2] = nextRow;
}
row = nextRow;
if (indexedTrie[row + mappedCharCode * 2] !== undefined && indexedTrie[row + mappedCharCode * 2] !== 0) {
indexedTrie[row + mappedCharCode * 2 + 1] = valueStore.finalize();
} else {
indexedTrie[row + mappedCharCode * 2] = -1;
indexedTrie[row + mappedCharCode * 2 + 1] = valueStore.finalize();
}
}
row = 0;
nextRow = 0;
prevMappedCharCode = 0;
prevWasPosition = false;
}
}
},
i;
for (i in newpatterns) {
if (newpatterns.hasOwnProperty(i)) {
collectPatternChars(newpatterns[i]);
}
}
patternChars = [];
for (i in collected) {
if (collected.hasOwnProperty(i)) {
patternChars.push(i);
}
}
patternChars.sort();
for (i = 0; i < patternChars.length; i += 1) {
charMap.add(patternChars[i].charCodeAt(0));
}
patternChars = patternChars.join("");
charMapValues = charMap.values;
steps = charMap.keys.length * 2;
indexedTrieMaxRow = 0;
for (i in newpatterns) {
if (newpatterns.hasOwnProperty(i)) {
extract(parseInt(i, 10), newpatterns[i]);
}
}
return {
"patternChars": patternChars,
"patternArrayLength": indexedTrie.length / 2,
"valueStoreLength": valueStore.lastValueIndex + 1
};
}
function arr2uniqueString(arr) {
'use strict';
var s = {},
i,
special = "";
for (i = 0; i < arr.length; i += 1) {
s[arr[i]] = true;
}
for (i in s) {
if (s.hasOwnProperty(i)) {
special += i;
}
}
return special;
}
function startConversion() {
'use strict';
var len, i, curlen, key, special, meta,
oldpatternString = document.getElementsByName('oldpattern')[0].value,
oldpatterns;
newpatterns = {};
special = oldpatternString.match(/[^a-z0-9\. ]/gi);
if (special) {
<
8000
/div> specialChars = arr2uniqueString(special);
} else {
specialChars = '';
}
oldpatternString = oldpatternString.replace(/ $/, ''); //trim
oldpatternString = oldpatternString.replace(/\./g, '_'); // . -> _
oldpatterns = oldpatternString.split(' ');
oldpatterns.sort(lengthSort);
len = oldpatterns.length;
//Sort patterns -> better compression
for (i = 0; i < len; i += 1) {
curlen = oldpatterns[i].length;
if (newpatterns.hasOwnProperty(curlen)) {
newpatterns[curlen].push(oldpatterns[i]);
} else {
newpatterns[curlen] = [oldpatterns[i]];
}
}
for (key in newpatterns) {
if (newpatterns.hasOwnProperty(key)) {
newpatterns[key].sort();
newpatterns[key] = newpatterns[key].join("");
}
}
meta = createAndMeasure();
output2String(meta);
}
Hyphenator.run();
window.onload = function () {
'use strict';
var desc = document.getElementById('desc');
document.getElementsByName('language')[0].onfocus = function () {
if (this.value === 'language') {
this.value = '';
}
desc.innerHTML = "<em>Define language:</em><br>Use the <a href='http://www.loc.gov/standards/iso639-2/php/code_list.php'>ISO 639-1</a> two-letter language code.<br>(e.g. 'en' for english.)";
};
document.getElementsByName('language')[0].onblur = function () {
if (this.value === '') {
this.value = 'language';
}
desc.innerHTML = "";
};
document.getElementsByName('leftmin')[0].onfocus = function () {
if (this.value === 'leftmin') {
this.value = '';
}
desc.innerHTML = "<em>Define leftmin:</em><br>Define how many letters at minimum should stay on the old line upon hyphenation.<br>(e.g.: setting this to 3 would prevent 'Hy-phenation')";
};
document.getElementsByName('leftmin')[0].onblur = function () {
if (this.value === '') {
this.value = 'leftmin';
}
desc.innerHTML = "";
};
document.getElementsByName('rightmin')[0].onfocus = function () {
if (this.value === 'rightmin') {
this.value = '';
}
desc.innerHTML = "<em>Define rightmin:</em><br>Define how many letters at minimum should stay on the new line upon hyphenation.<br>(e.g.: setting this to 3 would prevent 'divid-ed')";
};
document.getElementsByName('rightmin')[0].onblur = function () {
if (this.value === '') {
this.value = 'rightmin';
}
desc.innerHTML = "";
};
document.getElementsByName('oldpattern')[0].onfocus = function () {
if (this.value === '.a5 .rt4 .d4gt2 asdf2 9kas3') {
this.value = '';
}
desc.innerHTML = "<em>Define oldpattern:</em><br>Paste the patterns you like to convert. They have to be separated by spaces, not newlines! Points (.) will be automatically replaced by underscores (_).<br>(e.g.: .ach4 .ad4der .af1t .al3t .am5at .an5c .ang4 .ani5m .ant4)";
};
document.getElementsByName('oldpattern')[0].onblur = function () {
if (this.value === '') {
this.value = '.a5 .rt4 .d4gt2 asdf2 9kas3';
}
desc.innerHTML = "";
};
document.getElementById('myform').onsubmit = function (e) {
if (e && e.preventDefault) {
e.preventDefault();
} else if (window.event) {
window.event.returnValue = false;
}
startConversion();
};
};
</script>
</head>
<body>
<h1>Compressor for
<svg height="60" width="150" version="1.1" style="vertical-align: middle">
<g font-family="Consolas" font-weight="bold" font-size="36px" transform="translate(-90,-191)">
<text y="230" x="139" fill="#bbb">&shy;</text>
<text line-height="70%" fill="#444">
<tspan y="218" x="103">Hyphen-</tspan>
<tspan y="243" x="103">ator.js</tspan>
</text>
<text font-weight="normal" line-height="125%" font-size="32px" y="228" x="89" fill="#000">{</text>
</g>
</svg>
</h1>
<p class="multicol hyphenate">
Compressor converts standard TeX hyphenation patterns to a special format used by hyphenator.js and adds some meta-information automatically. Just fill in the language, leftmin, rightmin and the patterns (overwrite the examples!) and click 'Convert!'.</p>
<p class="multicol hyphenate">
Copy the output and paste it in the appropriate pattern file ('patterns/lang.js').<br>
The script loads the version of Hyphenator.js that resides in the same directory as this page.
</p>
<form action="#outanchor" method="post" id="myform">
<fieldset>
<legend>Paste TeX-styled patterns:</legend>
<p id="fields">
<input type="text" name="language" value="language"><br>
<input type="text" name="leftmin" value="leftmin"><br>
<input type="text" name="rightmin" value="rightmin">
</p>
<p id="desc"></p>
<textarea name="oldpattern" cols="80" rows="20">hy3ph he2n hena4 hen5at 1na n2at 1tio 2io o2n</textarea>
<input type="submit" value="Convert!"><input type="reset" value="Reset">
</fieldset>
<fieldset>
<legend>Copy Hyphenator.js pattern files:</legend>
<p>Copy the output and paste it in the appropriate pattern file ('patterns/<lang>.js').</p>
<textarea name="newpattern" cols="80" rows="20"></textarea>
</fieldset>
</form>
</body>
</html>