SOUNDEX Code Generator

Soudex Code Generator Coded with JavaScript to Produce the Soundex Code for any English Name (i.e. No Special Characters). GGA Image ID # 1cf95a18cd

Sample Soundex Code Results for the Surname "Gjenvick," which is "G-512." GGA Image ID # 1cf9749e6c

SOUNDEX is a phonetic code utilized to index various U.S. Census data since 1880.

Instructions:

1. Enter the surname for which to generate SOUNDEX code.
2. Click on the SOUNDEX button.
3. See the corresponding SOUNDEX code in the field.

Soundex Code

function initMail(form) {
text = "Check out this page: " + window.location;
form.message.value = "Hi " + form.sendto.value + " (" + form.to.value + "):\n\n"
+ text + "\n\nYour Friend,\n" + form.sendername.value + "(" +
form.senderemail.value + ")";
return (form.to.value != "");
}
// End -->
<script language=JavaScript>
<!-- hide this code from non-scriptable browsers

// create object listing the SOUNDEX values for each letter
// -1 indicates that the letter is not coded, but is used for coding
// 1 is for BFPV
// 2 is for CGJKQSXZ
// 3 is for DT
// 4 is for L
// 5 is for M
// 6 is for R
function makesoundex() {
this.a = -1
this.b = 1
this.c = 2
this.d = 3
this.e = -1
this.f = 1
this.g = 2
this.h = -1
this.i = -1
this.j = 2
this.k = 2
this.l = 4
this.m = 5
this.n = 5
this.o = -1
this.p = 1
this.q = 2
this.r = 6
this.s = 2
this.t = 3
this.u = -1
this.v = 1
this.w = -1
this.x = 2
this.y = -1
this.z = 2
}

var sndx=new makesoundex()

// check to see that the input is valid
function isSurname(name) {
if (name=="" || name==null) {
alert("Please enter surname for which to generate SOUNDEX code.")
return false
} else {
for (var i=0; i<name.length; i++) {
var letter=name.charAt(i)
if (!(letter>='a' && letter<='z' || letter>='A' && letter<='Z')) {
alert("Please enter only letters in the surname.")
return false
}
}
}
return true
}

// Collapse out directly adjacent sounds
// 1. Assume that surname.length>=1
// 2. Assume that surname contains only lowercase letters
function collapse(surname) {
if (surname.length==1) {
return surname
}
var right=collapse(surname.substring(1,surname.length))
if (sndx[surname.charAt(0)]==sndx[right.charAt(0)]) {
return surname.charAt(0)+right.substring(1,right.length)
}
return surname.charAt(0)+right
}

// Compute the SOUNDEX code for the surname
function soundex(form) {
form.result.value=""
if (!isSurname(form.surname.value)) {
return
}
var stage1=collapse(form.surname.value.toLowerCase())
form.result.value+=stage1.charAt(0).toUpperCase() // Retain first letter
form.result.value+="-" // Separate letter with a dash
var stage2=stage1.substring(1,stage1.length)
var count=0
for (var i=0; i<stage2.length && count<3; i++) {
if (sndx[stage2.charAt(i)]>0) {
form.result.value+=sndx[stage2.charAt(i)]
count++
}
}
for (; count<3; count++) {
form.result.value+="0"
}

form.surname.select()
form.surname.focus()
}
// end code hiding -->
</script>
<script language="JavaScript">
function blockError(){return true;}
window.onerror = blockError;
</script>