/**
File: classParser.js
Author: Peter J. Frueh
Created: 8.14.2004
Last Modified: 8.21.2004
Description:
Traverses document body and parses element class names.
If the flag 'new--' is found in an elements class name, the specified
JavaScript function becomes the "class" of that element.
The function can be passed arguments using the '-' char as a delimiter.
NOTE: All parameters are passed into the function as type string.
Example:
I'm Blue!
I'm Red!
**/
function parseClassNames()
{
if (!document.getElementById)
return;
try
{
var sPrefixFlag = 'new--';
var cParamDelimiter = '-';
var aActionElements = getElementsByClassName(sPrefixFlag, document.getElementsByTagName('body').item(0), false);
for (var i = 0; i < aActionElements.length; i++)
{
var sFunctionName = '';
var aParams = null;
var sInitString = '';
var sClassName = trim(aActionElements[i].className);
var nFunctionStartIndex = parseInt(sClassName.indexOf(sPrefixFlag)) + sPrefixFlag.length;
for (var j = nFunctionStartIndex; j < sClassName.length; j++)
{
var cChar = sClassName.charAt(j);
if (cChar != cParamDelimiter && cChar != ' ')
sFunctionName += cChar;
else
break;
}
if (cChar == cParamDelimiter)
{
var sParamName = '';
aParams = new Array();
for (var j = j + cParamDelimiter.length; j < sClassName.length; j++)
{
var cChar = sClassName.charAt(j);
if (cChar != cParamDelimiter && cChar != ' ')
sParamName += cChar;
else
{
if (cChar == cParamDelimiter)
{
aParams[aParams.length] = sParamName;
sParamName = '';
j += cParamDelimiter.length - 1;
}
else if (cChar == ' ')
{
aParams[aParams.length] = sParamName;
break;
}
}
if (j == sClassName.length - 1)
{
aParams[aParams.length] = sParamName;
}
}
sInitString = 'aActionElements[' + i + '].init(';
for (var k = 0; k < aParams.length; k++)
{
sInitString += '"' + aParams[k] + '"';
if (k != aParams.length - 1)
sInitString += ', ';
}
sInitString += ');';
}
else
sInitString = 'aActionElements[' + i + '].init();'
aActionElements[i].init = eval(sFunctionName);
eval(sInitString);
}
}
catch(error) { return; }
function getElementsByClassName(sClassName, oStartNode, bStrict)
{
var oStartNode = (typeof(oStartNode) == 'undefined') ? document.getElementsByTagName('body').item(0) : oStartNode;
var bStrict = (typeof(bStrict) == 'undefined') ? true : bStrict;
var aResults = new Array();
walkNodes(oStartNode);
return aResults;
function walkNodes(oStartNode)
{
for (var oNode = oStartNode.firstChild; oNode != null; oNode = oNode.nextSibling)
{
if (oNode.nodeType == 1 && oNode.className && oNode.className.indexOf(sClassName) != -1)
{
if (bStrict)
{
var nStartIndex = oNode.className.indexOf(sClassName);
var nEndIndex = nStartIndex + sClassName.length;
if ((oNode.className.length == sClassName.length) ||
(nStartIndex == 0 && oNode.className.charAt(nEndIndex) == ' ') ||
(oNode.className.charAt(nStartIndex - 1) == ' ' && oNode.className.charAt(nEndIndex) == ' ') ||
(oNode.className.charAt(nStartIndex - 1) == ' ' && oNode.className.length == nEndIndex))
{
aResults[aResults.length] = oNode;
}
}
else
aResults[aResults.length] = oNode;
}
walkNodes(oNode);
}
}
}
function trim(s)
{
while (s.substring(0, 1) == ' ') { s = s.substring(1, s.length); }
while (s.substring(s.length - 1, s.length) == ' ') { s = s.substring(0, s.length-1); }
return s;
}
}