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Lexers.performance.readToken.htm
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Lexers.performance.readToken.htm
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<!DOCTYPE HTML>
<html>
<head>
<title>Performance: readToken</title>
<link rel="stylesheet" type="text/css" href="css/syntaxes.css">
<style>
.myNode {
border: 1px solid #CCC;
padding: 0 2px;
}
.myNode .myNode .myNode { background:lime; }
.myNode .myNode .myNode .myNode { background:yellow; }
.myNode .myNode .myNode .myNode .myNode { background:red; }
.undefined { background:royalblue !important;}
.w100 {
margin: 1em;
}
TEXTAREA {
width: 100%;
}
INPUT[type=button]{
font-weight: bold;
padding:.25em 1em;
}
#eResult,
#eStats {
background: none repeat scroll 0 0 #eee;
box-sizing: border-box;
float: left;
font:.8em Arial;
margin: 0;
overflow: auto;
padding: 1em;
}
FIELDSET {
float: left;
margin: 0 1em 1em 0;
}
FIELDSET DL{
margin: 0;
}
TD {
border:1px solid #000;
border-width: 1px 1px 0 0;
padding: 0.25em 1em 0 1em;
text-align: right;
}
TH {
cursor: pointer;
}
</style>
</head>
<body spellcheck="false">
<a href="index.htm">Index</a>
<h1>Performance: readToken</h1>
<fieldset><legend>Action</legend>
<dl>
<dt><input type="button" id="eBtnInit" value="Initialiser"></dt>
<dt><input type="button" id="eBtnReadToken" value="Lire le token suivant"></dt>
<dt><input type="button" id="eBtnScan" value="Scanner"></dt>
</dl>
</fieldset>
<fieldset><legend>Etats</legend>
<dl>
<dt>Index: <span id="eIndex">0</span></dt>
<dt>Ligne: <span id="eLine">1</span></dt>
<dt>Régle: <span id="eRule">JS</span></dt>
<dt>Précédant: <span id="ePrevious"></span></dt>
</dl>
</fieldset>
<fieldset><legend>Lexer</legend>
<dl>
<dt><select id="eLexer">
<option value="AutomatonLexer" selected>AutomatonLexer</option>
<option value="MultiRegExpLexer">MultiRegExpLexer</option>
<option value="OneRegExpLexer">OneRegExpLexer</option>
</select></dt>
<dt><input type="checkbox" id="eBSkip"><label for="eBSkip">Skip.</label></dt>
<dt><input type="checkbox" id="eShowResult" checked><label for="eShowResult">Afficher le résultat.</label></dt>
<dt><input type="checkbox" id="eShowStats" checked><label for="eShowStats">Afficher les stats.</label></dt>
</dl>
</fieldset>
<fieldset><legend>Lexeme</legend>
<dl>
<dt><select id="eLexeme">
<option value="HTMLElement" selected>HTMLElement</option>
<option value="ObjectNode">ObjectNode</option>
<option value="SimpleNode">SimpleNode</option>
</select></dt>
</dl>
</fieldset>
<fieldset><legend>Source</legend>
<dl>
<dt><label for="eSyntax">Syntaxe : </label>
<select id="eSyntax"></select>
</dt>
<dt><textarea id="eText">
/* 1 - JavaScript syntax */ aaa */
variable n = nInt1/4 + 4/nInt1++ || 10
var oEditor = new EditorSample ( eContent ,{
// a single line comment ( a single quote ' )
aArray : [ true , false , null , undefined , Infinity , NaN ],
sDoubleQuoteString : "/* ' a multi line comment */ // a single line comment " ,
sSingleQuoteString : '/* "\
a multi line string */ // a single line comment '
sBracketsTest1_1 : "{[(",
sBracketsTest1_2 : "}])",
/*
a multi line comment ( a double quote " )
*/
})
RegExp.extend({
escape :function( s ){
// Bracket test 2
var re1 = /(\.|\?|\*|\+|\\|\(|\)|\[|\]|\}|\{|\$|\^|\|)/g
, re2 = /("|')/gm
return s.replace( re1 , "\\$1" )
}
})
/* 2 - PHP */
<?php
function phpSafe ( $strText ){
// a single line comment ( a double quote ")
$tmpString = $strText ;
$tmpString = str_replace( chr(92) , "" , $tmpString );
returning rawurldecode( $tmpString );
}
/*
a multi line comment ( a single quote ' )
*/
$hiddencontent = phpSafe( $_POST[ 'content' ]);
?>
</textarea></dt>
</dl>
</fieldset>
<div style="clear: both;">Token: <span id="eTokenInfo">...</span></div>
<hr>
<table id="eStats"></table>
<pre id="eResult"></pre>
<div style="float: left;">
<p>La performance est moindre lorsque:</p>
<ol>
<li>Il créé un token composé
<ul>
<li>COMMENT: Commentaire simple ou multi ligne.</li>
<li>STRING: Chaine de caractère.</li>
</ul></li>
<li>Une fois un token détecté le <i>lexer revient en arrière</i><br>
et le <b>rescanne</b> pour détecter ses enfants (pour les espaces blancs...)
<ul>
<li>REGULAR_EXPRESSION: Expression régulière.</li>
</ul></li>
<li>Il créé 2 tokens: Un parent et son premier enfant
<ul><!--
<li><abbr title="Multi Line Comment">MLC</abbr>: Commentaire multi ligne.</li>
<li><abbr title="Multi Line Comment">SLC</abbr>: Commentaire simple ligne.</li>
<li><abbr title="String Double Quote">SDQ</abbr> ou DOUBLE_QUOTE: Chaine de caractère.</li>
<li><abbr title="String Single Quote">SSQ</abbr> ou SINGLE_QUOTE:. Chaine de caractère.</li> -->
<li>PHP: Code PHP....</li>
</ul></li>
</ol>
<p>A noter que les lexers retournent <code>true</code> quand:</p>
<ul>
<li>il dépile un parent après n'avoir trouvé aucun token.</li>
<li>un token est passé (skipped).</li>
</ul>
</div>
<!-- FRAMEWORK... -->
<script src="js/framework.js"></script>
<script src="js/shared.js"></script>
<script src="widget/Stats/scripts.js"></script>
<script>
Stats.getTime =function( n ){
return (n*1000).toFixed(1)
}
</script>
<!-- LEXER NODE -->
<script src="js/lexer.node.object.js"></script>
<script src="js/lexer.node.simple.js"></script>
<script>
var replaceSpecialHTML =function( s ){
return s.str_replace( ['&','<','>'], ['&','<','>'])
}
var valueToString =function(o){
return JSON.stringify( o, 'token,parentToken,css,index,lineStart,lineEnd'.split(','), " " ).str_replace('"', '')
}
var setTitle =function(){
if( ! this.oValue ) console.warn(this)
this.title = valueToString( this.oValue )
}
var Lexemes ={
HTMLElement :function( o ){
var e = document.createElement( o.token )
e.oValue = o
if( eShowResult.checked ){
e.className = 'myNode '+ o.css
e.setTitle = setTitle
e.setTitle()
if( o.value ) e.innerHTML = replaceSpecialHTML( o.value )
}
return e
},
ObjectNode :function( o ){
var oNode = new Node ( o.token )
oNode.oValue = o
return oNode
},
SimpleNode :function( o ){
var oNode = new SimpleNode ( o.token )
oNode.oValue = o
return oNode
}
}
</script>
<!-- LEXERS -->
<script src="js/lexer.class.js"></script>
<script src="js/lexer.regexp.one.js"></script>
<script src="js/lexer.regexp.one.modules.js"></script>
<script src="js/lexer.regexp.multi.js"></script>
<script src="js/lexer.regexp.multi.modules.js"></script>
<script src="js/lexer.automaton.js"></script>
<script src="js/lexer.automaton.modules.js"></script>
<script> // MultiRegExpLexer, AutomatonLexer
var oLexer
</script>
<script src="widget/tSorter.js" type="text/javascript"></script>
<!-- TESTS -->
<script>
var oChrono = new Chrono ()
, eToken, oLexer, Lexeme
, TableSorter // TableSorter.sort(1,'DESC')
View ={
bScanning: false,
reset :function(){
var b = eLexeme.value=='ObjectNode'
if( eShowResult.disabled = b ) eShowResult.checked = false
Lexeme = window.Lexemes[ eLexeme.value ]
oLexer = new window[ eLexer.value ]
Stats.reset()
View.init()
eStats.innerHTML = ''
},
init :function(){
oLexer.init( eText.value, eSyntax.value )
oLexer.skip.set( eBSkip.checked )
eResult.innerHTML= ''
if( eShowResult.checked && eLexeme.value=='HTMLElement' ) eResult.appendChild( oLexer.eRoot )
if( ! eShowStats.checked ) eStats.innerHTML = ''
View.setInfo()
},
readToken :function(){
oChrono.start()
if( eToken = oLexer.readToken()){
var o = eToken.oValue
if( eShowStats.checked )
Stats.set( o ? o.token : "--true--", oChrono.stop())
}
if( ! View.bScanning ){
View.setInfo( eToken )
View.setStats()
}
return eToken
},
scan :function(){
View.bScanning = true
if( ! View.readToken()) View.init()
while( eToken = View.readToken()){}
View.setInfo()
View.setStats()
View.bScanning = false
},
setInfo :function( eToken ){
eTokenInfo.innerHTML = eToken ? JSON.stringify( eToken.oValue || true ) : '...'
eIndex.innerHTML = oLexer.nPos
eLine.innerHTML = oLexer.nLine
eRule.innerHTML = oLexer.sSyntax
ePrevious.innerHTML = oLexer.previous.get()
},
setStats :function(){
if( eShowStats.checked ){
var aStats = []
for(var s in Stats ){
var o = Stats[s]
if( o && o.max && s!='print' ){
o.toString =function(){
return '<td>'+ this.key+'</td>'+
'<td>'+ this.tot + '</td>'+
'<td>'+ Stats.getTime( this.min ) + '</td>'+
'<td>'+ Stats.getTime( this.moy ) + '</td>'+
'<td>'+ Stats.getTime( this.max ) + '</td>'+
'<td>'+ (this.sum.toFixed(3)) + '</td>'
}
aStats.push( o )
}
}
aStats.sortBy( 'count', 'DESC' )
eStats.innerHTML =
'<thead><tr>'
+'<th>'+'token</th>'
+'<th abbr="number">nbre</th>'
+'<th abbr="number">min (µs)</th>'
+'<th abbr="number">moy (µs)</th>'
+'<th abbr="number">max (µs)</th>'
+'<th abbr="number">total (ms)</th>'
+'</tr></thead>'
+'<tbody><tr>'+ aStats.join('</tr><tr>') +'</tr></tbody>'
TableSorter = new TSorter;
TableSorter.init('eStats');
}
}
}
</script>
<!-- DHTML -->
<script>
_( 'eLexer' )
_( 'eText,eResult,eBSkip,eShowResult,eStats,eShowStats' )
_( 'eBtnReadToken,eBtnInit' )
_( 'eTokenInfo,eIndex,eLine,eRule' )
_( 'eSyntax' )
var aRules = 'CSS|HTML|INI|JS|PHP|TXT'.split('|')
Tag.addChildNodes( eSyntax, 'OPTION', aRules, 'JS' )
Events.add(
'click',
eBtnInit, View.init,
eBtnReadToken, View.readToken,
eBtnScan, View.scan,
'change',
eBSkip, View.reset,
eLexer ,View.reset,
eLexeme ,View.reset,
eSyntax, function(){
LoadFile( 'modules/preview/'+ eSyntax.value +".htm", function( s ){
eText.value = s
View.reset()
})
}
)
eLexeme.onchange()
eLexer.onchange()
</script>
</body>
</html>