Making regexp case insensitive within javascript
There is code on one of my pages which produces a message if a specified regular expression is not entered correctly into a form field. I would like to make this regexp case insensitive, with respect to the word "Maui". Could you provide the code for that?
frmvalidator.addValidation
frmvalidator.addValidation
ASKER
Thank you. However, I get an error message no matter what case I use (Maui, maui or MAUI returns "please check your spelling..." When the code is working, any of those forms of "Maui" should allow the form to be submitted.
open gen_validatorv4.js
replace :
and use :
replace :
if(epos >= 0)
{
command = strValidateStr.substring(0, epos);
cmdvalue = strValidateStr.substr(epos + 1);
}
else
{
command = strValidateStr;
} if(typeof objValue == "object") {
command = "regexp";
}
else {
if(epos >= 0)
{
command = strValidateStr.substring(0, epos);
cmdvalue = strValidateStr.substr(epos + 1);
}
else
{
command = strValidateStr;
}
}
and use :
frmvalidator.addValidation("captcha",/Maui/i,"Please check your spelling and try again");ASKER
Thank you. I made those changes. Now, the code in the contact.htm section -- var frmvalidator = new Validator("contactform"); is no longer performing.
If it makes a difference, the js I am using is gen_validatorv31.js, not gen_validatorv4.js
If it makes a difference, the js I am using is gen_validatorv31.js, not gen_validatorv4.js
I don't have the 3.1 so I don't know
ASKER
This is the js file after the modification...
/*
-------------------------------------------------------------------------
JavaScript Form Validator (gen_validatorv31.js)
Version 3.1.2
Copyright (C) 2003-2008 JavaScript-Coder.com. All rights reserved.
You can freely use this script in your Web pages.
You may adapt this script for your own needs, provided these opening credit
lines are kept intact.
The Form validation script is distributed free from JavaScript-Coder.com
For updates, please visit:
http://www.javascript-coder.com/html-form/javascript-form-validation.phtml
Questions & comments please send to form.val at javascript-coder.com
-------------------------------------------------------------------------
*/
function Validator(frmname)
{
this.formobj=document.forms[frmname];
if(!this.formobj)
{
alert("Error: couldnot get Form object "+frmname);
return;
}
if(this.formobj.onsubmit)
{
this.formobj.old_onsubmit = this.formobj.onsubmit;
this.formobj.onsubmit=null;
}
else
{
this.formobj.old_onsubmit = null;
}
this.formobj._sfm_form_name=frmname;
this.formobj.onsubmit=form_submit_handler;
this.addValidation = add_validation;
this.setAddnlValidationFunction=set_addnl_vfunction;
this.clearAllValidations = clear_all_validations;
this.disable_validations = false;//new
document.error_disp_handler = new sfm_ErrorDisplayHandler();
this.EnableOnPageErrorDisplay=validator_enable_OPED;
this.EnableOnPageErrorDisplaySingleBox=validator_enable_OPED_SB;
this.show_errors_together=true;
this.EnableMsgsTogether=sfm_enable_show_msgs_together;
document.set_focus_onerror=true;
this.EnableFocusOnError=sfm_validator_enable_focus;
}
function sfm_validator_enable_focus(enable)
{
document.set_focus_onerror = enable;
}
function set_addnl_vfunction(functionname)
{
this.formobj.addnlvalidation = functionname;
}
function sfm_set_focus(objInput)
{
if(document.set_focus_onerror)
{
objInput.focus();
}
}
function sfm_enable_show_msgs_together()
{
this.show_errors_together=true;
this.formobj.show_errors_together=true;
}
function clear_all_validations()
{
for(var itr=0;itr < this.formobj.elements.length;itr++)
{
this.formobj.elements[itr].validationset = null;
}
}
function form_submit_handler()
{
var bRet = true;
document.error_disp_handler.clear_msgs();
for(var itr=0;itr < this.elements.length;itr++)
{
if(this.elements[itr].validationset &&
!this.elements[itr].validationset.validate())
{
bRet = false;
}
if(!bRet && !this.show_errors_together)
{
break;
}
}
if(this.addnlvalidation)
{
str =" var ret = "+this.addnlvalidation+"()";
eval(str);
if(!ret)
{
bRet=false;
}
}
if(!bRet)
{
document.error_disp_handler.FinalShowMsg();
return false;
}
return true;
}
function add_validation(itemname,descriptor,errstr)
{
var condition = null;
if(arguments.length > 3)
{
condition = arguments[3];
}
if(!this.formobj)
{
alert("Error: The form object is not set properly");
return;
}//if
var itemobj = this.formobj[itemname];
if(itemobj.length && isNaN(itemobj.selectedIndex) )
//for radio button; don't do for 'select' item
{
itemobj = itemobj[0];
}
if(!itemobj)
{
alert("Error: Couldnot get the input object named: "+itemname);
return;
}
if(!itemobj.validationset)
{
itemobj.validationset = new ValidationSet(itemobj,this.show_errors_together);
}
itemobj.validationset.add(descriptor,errstr,condition);
itemobj.validatorobj=this;
}
function validator_enable_OPED()
{
document.error_disp_handler.EnableOnPageDisplay(false);
}
function validator_enable_OPED_SB()
{
document.error_disp_handler.EnableOnPageDisplay(true);
}
function sfm_ErrorDisplayHandler()
{
this.msgdisplay = new AlertMsgDisplayer();
this.EnableOnPageDisplay= edh_EnableOnPageDisplay;
this.ShowMsg=edh_ShowMsg;
this.FinalShowMsg=edh_FinalShowMsg;
this.all_msgs=new Array();
this.clear_msgs=edh_clear_msgs;
}
function edh_clear_msgs()
{
this.msgdisplay.clearmsg(this.all_msgs);
this.all_msgs = new Array();
}
function edh_FinalShowMsg()
{
this.msgdisplay.showmsg(this.all_msgs);
}
function edh_EnableOnPageDisplay(single_box)
{
if(true == single_box)
{
this.msgdisplay = new SingleBoxErrorDisplay();
}
else
{
this.msgdisplay = new DivMsgDisplayer();
}
}
function edh_ShowMsg(msg,input_element)
{
var objmsg = new Array();
objmsg["input_element"] = input_element;
objmsg["msg"] = msg;
this.all_msgs.push(objmsg);
}
function AlertMsgDisplayer()
{
this.showmsg = alert_showmsg;
this.clearmsg=alert_clearmsg;
}
function alert_clearmsg(msgs)
{
}
function alert_showmsg(msgs)
{
var whole_msg="";
var first_elmnt=null;
for(var m=0;m < msgs.length;m++)
{
if(null == first_elmnt)
{
first_elmnt = msgs[m]["input_element"];
}
whole_msg += msgs[m]["msg"] + "\n";
}
alert(whole_msg);
if(null != first_elmnt)
{
sfm_set_focus(first_elmnt);
}
}
function sfm_show_error_msg(msg,input_elmt)
{
document.error_disp_handler.ShowMsg(msg,input_elmt);
}
function SingleBoxErrorDisplay()
{
this.showmsg=sb_div_showmsg;
this.clearmsg=sb_div_clearmsg;
}
function sb_div_clearmsg(msgs)
{
var divname = form_error_div_name(msgs);
show_div_msg(divname,"");
}
function sb_div_showmsg(msgs)
{
var whole_msg="<ul>\n";
for(var m=0;m < msgs.length;m++)
{
whole_msg += "<li>" + msgs[m]["msg"] + "</li>\n";
}
whole_msg += "</ul>";
var divname = form_error_div_name(msgs);
show_div_msg(divname,whole_msg);
}
function form_error_div_name(msgs)
{
var input_element= null;
for(var m in msgs)
{
input_element = msgs[m]["input_element"];
if(input_element){break;}
}
var divname ="";
if(input_element)
{
divname = input_element.form._sfm_form_name + "_errorloc";
}
return divname;
}
function DivMsgDisplayer()
{
this.showmsg=div_showmsg;
this.clearmsg=div_clearmsg;
}
function div_clearmsg(msgs)
{
for(var m in msgs)
{
var divname = element_div_name(msgs[m]["input_element"]);
show_div_msg(divname,"");
}
}
function element_div_name(input_element)
{
var divname = input_element.form._sfm_form_name + "_" +
input_element.name + "_errorloc";
divname = divname.replace(/[\[\]]/gi,"");
return divname;
}
function div_showmsg(msgs)
{
var whole_msg;
var first_elmnt=null;
for(var m in msgs)
{
if(null == first_elmnt)
{
first_elmnt = msgs[m]["input_element"];
}
var divname = element_div_name(msgs[m]["input_element"]);
show_div_msg(divname,msgs[m]["msg"]);
}
if(null != first_elmnt)
{
sfm_set_focus(first_elmnt);
}
}
function show_div_msg(divname,msgstring)
{
if(divname.length<=0) return false;
if(document.layers)
{
divlayer = document.layers[divname];
if(!divlayer){return;}
divlayer.document.open();
divlayer.document.write(msgstring);
divlayer.document.close();
}
else
if(document.all)
{
divlayer = document.all[divname];
if(!divlayer){return;}
divlayer.innerHTML=msgstring;
}
else
if(document.getElementById)
{
divlayer = document.getElementById(divname);
if(!divlayer){return;}
divlayer.innerHTML =msgstring;
}
divlayer.style.visibility="visible";
}
function ValidationDesc(inputitem,desc,error,condition)
{
this.desc=desc;
this.error=error;
this.itemobj = inputitem;
this.condition = condition;
this.validate=vdesc_validate;
}
function vdesc_validate()
{
if(this.condition != null )
{
if(!eval(this.condition))
{
return true;
}
}
if(!validateInput(this.desc,this.itemobj,this.error))
{
this.itemobj.validatorobj.disable_validations=true;
sfm_set_focus(this.itemobj);
return false;
}
return true;
}
function ValidationSet(inputitem,msgs_together)
{
this.vSet=new Array();
this.add= add_validationdesc;
this.validate= vset_validate;
this.itemobj = inputitem;
this.msgs_together = msgs_together;
}
function add_validationdesc(desc,error,condition)
{
this.vSet[this.vSet.length]=
new ValidationDesc(this.itemobj,desc,error,condition);
}
function vset_validate()
{
var bRet = true;
for(var itr=0;itr<this.vSet.length;itr++)
{
bRet = bRet && this.vSet[itr].validate();
if(!bRet && !this.msgs_together)
{
break;
}
}
return bRet;
}
function validateEmail(email)
{
var splitted = email.match("^(.+)@(.+)$");
if(splitted == null) return false;
if(splitted[1] != null )
{
var regexp_user=/^\"?[\w-_\.]*\"?$/;
if(splitted[1].match(regexp_user) == null) return false;
}
if(splitted[2] != null)
{
var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
if(splitted[2].match(regexp_domain) == null)
{
var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
if(splitted[2].match(regexp_ip) == null) return false;
}// if
return true;
}
return false;
}
function IsCheckSelected(objValue,chkValue)
{
var selected=false;
var objcheck = objValue.form.elements[objValue.name];
if(objcheck.length)
{
var idxchk=-1;
for(var c=0;c < objcheck.length;c++)
{
if(objcheck[c].value == chkValue)
{
idxchk=c;
break;
}//if
}//for
if(idxchk>= 0)
{
if(objcheck[idxchk].checked=="1")
{
selected=true;
}
}//if
}
else
{
if(objValue.checked == "1")
{
selected=true;
}//if
}//else
return selected;
}
function TestDontSelectChk(objValue,chkValue,strError)
{
var pass = true;
pass = IsCheckSelected(objValue,chkValue)?false:true;
if(pass==false)
{
if(!strError || strError.length ==0)
{
strError = "Can't Proceed as you selected "+objValue.name;
}//if
sfm_show_error_msg(strError,objValue);
}
return pass;
}
function TestShouldSelectChk(objValue,chkValue,strError)
{
var pass = true;
pass = IsCheckSelected(objValue,chkValue)?true:false;
if(pass==false)
{
if(!strError || strError.length ==0)
{
strError = "You should select "+objValue.name;
}//if
sfm_show_error_msg(strError,objValue);
}
return pass;
}
function TestRequiredInput(objValue,strError)
{
var ret = true;
var val = objValue.value;
val = val.replace(/^\s+|\s+$/g,"");//trim
if(eval(val.length) == 0)
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : Required Field";
}//if
sfm_show_error_msg(strError,objValue);
ret=false;
}//if
return ret;
}
function TestMaxLen(objValue,strMaxLen,strError)
{
var ret = true;
if(eval(objValue.value.length) > eval(strMaxLen))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : "+ strMaxLen +" characters maximum ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestMinLen(objValue,strMinLen,strError)
{
var ret = true;
if(eval(objValue.value.length) < eval(strMinLen))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : " + strMinLen + " characters minimum ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestInputType(objValue,strRegExp,strError,strDefaultError)
{
var ret = true;
var charpos = objValue.value.search(strRegExp);
if(objValue.value.length > 0 && charpos >= 0)
{
if(!strError || strError.length ==0)
{
strError = strDefaultError;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestEmail(objValue,strError)
{
var ret = true;
if(objValue.value.length > 0 && !validateEmail(objValue.value) )
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Enter a valid Email address ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestLessThan(objValue,strLessThan,strError)
{
var ret = true;
if(isNaN(objValue.value))
{
sfm_show_error_msg(objValue.name +": Should be a number ",objValue);
ret = false;
}//if
else
if(eval(objValue.value) >= eval(strLessThan))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : value should be less than "+ strLessThan;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestGreaterThan(objValue,strGreaterThan,strError)
{
var ret = true;
if(isNaN(objValue.value))
{
sfm_show_error_msg(objValue.name+": Should be a number ",objValue);
ret = false;
}//if
else
if(eval(objValue.value) <= eval(strGreaterThan))
{
if(!strError || strError.length ==0)
{
strError = objValue.name + " : value should be greater than "+ strGreaterThan;
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestRegExp(objValue,strRegExp,strError)
{
var ret = true;
if( objValue.value.length > 0 &&
!objValue.value.match(strRegExp) )
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Invalid characters found ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}//if
return ret;
}
function TestDontSelect(objValue,dont_sel_index,strError)
{
var ret = true;
if(objValue.selectedIndex == null)
{
sfm_show_error_msg("ERROR: dontselect command for non-select Item");
ret = false;
}
if(objValue.selectedIndex == eval(dont_sel_index))
{
if(!strError || strError.length ==0)
{
strError = objValue.name+": Please Select one option ";
}//if
sfm_show_error_msg(strError,objValue);
ret = false;
}
return ret;
}
function TestSelectOneRadio(objValue,strError)
{
var objradio = objValue.form.elements[objValue.name];
var one_selected=false;
for(var r=0;r < objradio.length;r++)
{
if(objradio[r].checked)
{
one_selected=true;
break;
}
}
if(false == one_selected)
{
if(!strError || strError.length ==0)
{
strError = "Please select one option from "+objValue.name;
}
sfm_show_error_msg(strError,objValue);
}
return one_selected;
}
function validateInput(strValidateStr,objValue,strError)
{
var ret = true;
var epos = strValidateStr.search("=");
var command = "";
var cmdvalue = "";
if(typeof objValue == "object") {
command = "regexp";
}
else {
if(epos >= 0)
{
command = strValidateStr.substring(0, epos);
cmdvalue = strValidateStr.substr(epos + 1);
}
else
{
command = strValidateStr;
}
}
switch(command)
{
case "req":
case "required":
{
ret = TestRequiredInput(objValue,strError)
break;
}//case required
case "maxlength":
case "maxlen":
{
ret = TestMaxLen(objValue,cmdvalue,strError)
break;
}//case maxlen
case "minlength":
case "minlen":
{
ret = TestMinLen(objValue,cmdvalue,strError)
break;
}//case minlen
case "alnum":
case "alphanumeric":
{
ret = TestInputType(objValue,"[^A-Za-z0-9]",strError,
objValue.name+": Only alpha-numeric characters allowed ");
break;
}
case "alnum_s":
case "alphanumeric_space":
{
ret = TestInputType(objValue,"[^A-Za-z0-9\\s]",strError,
objValue.name+": Only alpha-numeric characters and space allowed ");
break;
}
case "num":
case "numeric":
{
ret = TestInputType(objValue,"[^0-9]",strError,
objValue.name+": Only digits allowed ");
break;
}
case "dec":
case "decimal":
{
ret = TestInputType(objValue,"[^0-9\.]",strError,
objValue.name+": Only numbers allowed ");
break;
}
case "alphabetic":
case "alpha":
{
ret = TestInputType(objValue,"[^A-Za-z]",strError,
objValue.name+": Only alphabetic characters allowed ");
break;
}
case "alphabetic_space":
case "alpha_s":
{
ret = TestInputType(objValue,"[^A-Za-z\\s]",strError,
objValue.name+": Only alphabetic characters and space allowed ");
break;
}
case "email":
{
ret = TestEmail(objValue,strError);
break;
}
case "lt":
case "lessthan":
{
ret = TestLessThan(objValue,cmdvalue,strError);
break;
}
case "gt":
case "greaterthan":
{
ret = TestGreaterThan(objValue,cmdvalue,strError);
break;
}//case greaterthan
case "regexp":
{
ret = TestRegExp(objValue,cmdvalue,strError);
break;
}
case "dontselect":
{
ret = TestDontSelect(objValue,cmdvalue,strError)
break;
}
case "dontselectchk":
{
ret = TestDontSelectChk(objValue,cmdvalue,strError)
break;
}
case "shouldselchk":
{
ret = TestShouldSelectChk(objValue,cmdvalue,strError)
break;
}
case "selone_radio":
{
ret = TestSelectOneRadio(objValue,strError);
break;
}
}//switch
return ret;
}
function VWZ_IsListItemSelected(listname,value)
{
for(var i=0;i < listname.options.length;i++)
{
if(listname.options[i].selected == true &&
listname.options[i].value == value)
{
return true;
}
}
return false;
}
function VWZ_IsChecked(objcheck,value)
{
if(objcheck.length)
{
for(var c=0;c < objcheck.length;c++)
{
if(objcheck[c].checked == "1" &&
objcheck[c].value == value)
{
return true;
}
}
}
else
{
if(objcheck.checked == "1" )
{
return true;
}
}
return false;
}
/*
Copyright (C) 2003-2009 JavaScript-Coder.com . All rights reserved.
*/ASKER
I'm hoping there is a simpler way to do this. Can't we just modify the one line of frmvalidator code to make "Maui" case insensitive?
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Thank you for solving that dilemma. It was more work than I anticipated, so the points have been increased. May I ask if you made any changes to gen_validatorv31.js?
yes, mainly line 662 was before line 655
and it was cmdvalue and not cmdValue
and it was cmdvalue and not cmdValue
Open in new window