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<div class="row">
<form name="string2number" class="custom">
<div class="row collapse">
<div class="one mobile-one columns">
<span class="prefix">Text</span>
</div>
<div class="ten mobile-six columns">
<input
name="sourceString" id="sourceString" type="text"
placeholder="The source string you want to process"
onChange="StringToNumber.process();"
/>
</div>
<div class="one mobile-one columns">
<input type="button" class="button expand postfix" value="OK"
onClick="StringToNumber.process();" />
</div>
</div>
<h3>Simple substitution, addition</h3>
<p>Converts each letter into a number with a simple substitution (A=1, B=2, C=3), then gets the sum of these numbers.<br />This method is used in <a href="http://www.geocaching.com/geocache/GC5B9R8_charleroi-pub-crawl-directors-cut">
GC5B9R8</a> for example.</p>
<div class="row collapse">
<div class="one mobile-one columns">
<span class="prefix">Number</span>
</div>
<div class="eleven mobile-seven columns">
<input name="targetNumber" id="targetNumber" type="text" readonly />
</div>
</div>
</form>
</div>
<!-- JavaScript code for string2number tool -->
<script>
SimpleSubstitution = {
getNumber: function (letter) {
//TODO: handle accentuated letters
var number = letter.toUpperCase().charCodeAt(0) - 64;
if (number < 0 || number > 26) {
//TODO: consider to throw exception if argument isn't a letter
// but what about expected void chars, like spaces?
return 0;
}
return number;
},
getSum: function (text) {
sum = 0;
for (var i = 0, len = text.length; i < len; i++) {
sum += this.getNumber(text[i]);
}
return sum;
}
}
StringToNumber = {
process: function () {
var sourceString = document.getElementById("sourceString").value;
document.getElementById("targetNumber").value = SimpleSubstitution.getSum(sourceString);
},
}
</script>

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