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/*
JavaScript Bible, Fourth Edition
by Danny Goodman
John Wiley & Sons CopyRight 2001
*/
<HTML>
<HEAD>
<TITLE>Got a Match?</TITLE>
<SCRIPT LANGUAGE="JavaScript1.2">
function findIt(form) {
var re = new RegExp(form.regexp.value)
var input = form.main.value
if (input.search(re) != -1) {
form.output[0].checked = true
} else {
form.output[1].checked = true
}
}
function locateIt(form) {
var re = new RegExp(form.regexp.value)
var input = form.main.value
form.offset.value = input.search(re)
}
</SCRIPT>
</HEAD>
<BODY>
<B>Use a regular expression to test for the existence of a string:</B>
<HR>
<FORM>
Enter some text to be searched:<BR>
<TEXTAREA NAME="main" COLS=40 ROWS=4 WRAP="virtual">
The most famous ZIP code on Earth may be 90210.
</TEXTAREA><BR>
Enter a regular expression to search:<BR>
<INPUT TYPE="text" NAME="regexp" SIZE=30 VALUE="\b\d\d\d\d\d\b"><P>
<INPUT TYPE="button" VALUE="Is There a Match?" onClick="findIt(this.form)">
<INPUT TYPE="radio" NAME="output">Yes
<INPUT TYPE="radio" NAME="output">No <P>
<INPUT TYPE="button" VALUE="Where is it?" onClick="locateIt(this.form)">
<INPUT TYPE="text" NAME="offset" SIZE=4><P>
<INPUT TYPE="reset">
</FORM>
</BODY>
</HTML>
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