I have a textarea component which accepts these regex patterns:
UserExamble.com,user#,#examble.com,#examble.com
Now i have implemented all above patterns but in textarea, there are supposed to be multiple values seperated by comma, for ex. UserExamble.com,user# or UserExamble.com,user#,#examble.com,#examble.com. This is what i am not able to implement, how can i do this?
Below is my code:
this.userPolicyForm = this.fb.group({
senderRadioBtn: ['Any'],
senderEmailaddress: ['', [Validators.required, Validators.pattern(ValidationPatternConfig.userPolicyEmailAddressPattern)]]
});
and
ValidationPatternConfig.userPolicyEmailAddressPattern=
"^(([^<>()\\[\\]\\\\,;:\\s#\\\"]+(\\.[^<>()\\[\\]\\\\,;:\\s#\\\"]+)*)|(\\\".+\\\")){1,64}#(\\[ipv6:){1}(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))\\]$"
+"|"+
"^[A-Za-z0-9+.!#$%&'*+/=?^_`{|}~-]{1,64}#\\[(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\]$"
+"|"+
"^(([^<>()\\[\\]\\\\,;:\\s#\\\"]+(\\.[^<>()\\[\\]\\\\,;:\\s#\\\"]+)*)|(\\\".+\\\")){1,64}#((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}])|(([a-zA-Z\\-0-9]+\\.)+[a-zA-Z]{2,}))$"
+"|"+
"^$|^((?!\\.)[\\w-_.]*[^.])(#\\w+)(\\.\\w+(\\.\\w+)?[^.\\W])$"
+"|"+
"^([a-zA-Z0-9!#$%&'*+\\/=?^_`\\{|\\}~\\-.]*[^#,\\]\\[<>:;\"()])#$"
+"|"+
"^#(([a-zA-Z0-9]*([-a-zA-Z0-9]*[a-zA-Z0-9]*)\\.)+[a-zA-Z0-9]*([-a-zA-Z0-9]*[a-zA-Z0-9]))$"
I am using reactive forms in angular.
I have seen few stackoverflow answers, but none of them work. I am new to angular and regex, need help.
One thing you can do is to create custom email validator
this.userPolicyForm = this.fb.group({
senderRadioBtn: ['Any'],
senderEmailaddress: ['', [Validators.required, CustomValidators.validateEmail()]]
});
Create a new file for custom-validator.ts
import { AbstractControl, FormControl } from '#angular/forms';
export class CustomValidators {
// validating array of emails
static validateEmail() {
return (control: FormControl) => {
const pattern = new RegExp('^([a-z0-9\\+_\\-]+)(\\.[a-z0-9\\+_\\-]+)*#([a-z0-9\\-]+\\.)+[a-z]{2,6}$', 'i');
let validEmail = true;
if (control.value !== null) {
const emails = control.value.replace(/\s/g, '').split(',').filter((mail: any) => mail.trim());
for (const email of emails) {
if (email && !pattern.test(email)) {
validEmail = false;
}
}
}
return validEmail ? null : { invalid_email: true };
};
}
}
In html, you can add
<div *ngIf="userPolicyForm.controls.senderEmailaddress.hasError('invalid_email')">
Email address must be valid
</div>
From this you can validate in reactive form. Also when you are submitting array of emails, you can trim it to send to API.
You can decide on the patterns which you want to pass in your textbox and then create regex in 2 parts, one containing the pattern with a comma at the end and a greedy + and second part with just the pattern
like this:
let pattern = "(?:[A-z0-9]+#[A-z]+\.[A-z]{2,6})|(?:[A-z0-9]+#[A-z]+)|(?:#[A-z0-9]+\.[A-z]{2,6})|(?:[A-z0-9]\.[A-z]{2,6})"
var regexPattern = '/(?:' + pattern + '[,])+' + pattern + '/'
var regex = new RegExp(regexPattern)
console.log("UserExamble.com,user#some.com,#examble.com,run.com", regex.test("UserExamble.com,user#some.com,#examble.com,run.com"))
you can use this single regex to validate the input.
for some reasons new RegExp is not working in Edge and FireFox. How can I get around this?
var arrOfWordsToHighlight = ["microsoft","excel"];
function escapeRegExp(arrOfWordsToHighlight) {
return arrOfWordsToHighlight.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); // $& means the whole matched string
}
var pattern = new RegExp("(?<![\\w-])(" + arrOfWordsToHighlight.map(escapeRegExp).join("|") + ")(?![\\w-])", "gi");
$('#job').highlightWithinTextarea({
highlight: pattern
});
See: https://jsfiddle.net/seb_london/wm9yqazj
I am using regex to fetch data from mongodb from my node js application which is not working. Here is the code snippet. the query can not match with the set of records.
var analysis_date = '/^'+moment(fromTime).format('YYYY-MM').toString()+'/';
user_analysis.find({
parent_id: usrId,
analysis_date: {
$regex : analysis_date
}
},function(err, result) {
//some Code goes here});
Instead of specifying the regular expression as a string, try passing a RegExp object:
user_analysis.find({
"parent_id": usrId,
"analysis_date": new RegExp(analysis_date, 'i')
}, function(err, result) {
// ...
});
If you want, you can also pass a string, but then you'll need to remove the / delimiters:
user_analysis.find({
"parent_id": usrId,
"analysis_date": {
$regex: '^' + moment(fromTime).format('YYYY-MM').toString(),
$options: "i"
}
}, function(err, result) {
// ...
});
I have a find statement like this
collSession.find({"Venue.type": /.*MT.*/}).toArray(function (err, _clsSession)
{
console.log(_clsSession);
});
It is giving answer.But i need to some value of variable instead of that harcoded value MT.
How to achieve this ?
Thanks.
UPDATE I tried like "/."+searchterm+"./"
Its not working.
Instead of using the inline syntax to create a regular expression, you can also use the RegExp object to create one based on a string
var searchPhrase = "MT";
var regularExpression = new RegExp(".*" + searchPhrase + ".*");
collSession.find({"Venue.type": regularExpression}) [...]
Replace /.*MT.*/ with new RegExp( ".*" + variable + ".*" )
Try this:
var pattern = 'concatenate string' + here,
regexp = new Regexp(pattern);
Finally i got from here
it is "Venue.type": new RegExp(queryParams.et)
Take a look at this code: (I'm using mongoose)
exports.getSearchPosts = (req, res, next) => {
const keyword = req.body.keyword;
Post.find({ postTitle: new RegExp( ".*" + keyword + ".*" ) }).then(posts => {
res.render('post/search', {
pageTitle: 'Search result for: ' + keyword,
posts: posts,
category: postCategory,
posts: catPost,
});
}).catch(err => console.log(err));
}
I think you will find it helpful
I have some data in the following format. With the use of regex I want to display only the first two tokens.
For example AB.JKL.MNO.XYZ => AB.JKL
AB.JKL.MNO.XYZ
KJ.KJLJ.KD.IUOI
KLJ.LK.LJ.JL.OLJ.JLL
Note: I am using AngularJS I can achieve this using Angularjs expression directly in the html but the html is a common template where other data is also being displayed I don't want to corrupt it. Therefore I want to apply regex on data in controller.
Regex-wise:
If you want to grab a <letters><dot><letters> format, this regex will capture at the beginning:
^([^.]+\.[^.]+)
Same thing, but at the end of your string:
([^.]+\.[^.]+)$
Angular-wise
I am not so familiar with angular, but from what I understand, you can create your own type of filters.
<div ng-app='myApp' ng-controller="Main">
first token: {{name | firstToken}} </br>
last token: {{name | lastToken}}</br>
any Regex: {{name | regex:"[^.]+$"}}</br>
</div>
var myApp = angular.module('myApp', []);
myApp.filter('regex', function () {
return function (input, regex) {
if (!input) return '';
var matches = input.match(regex);
if (matches) return matches[0];
return "";
};
}).filter('firstToken', function () {
return function (input) {
if (!input) return '';
var matches = input.match(/([^.]+.[^.]+)/);
if (matches) return matches[0];
return "";
};
});
function Main($scope) {
$scope.name = 'AB.JKL.MNO.XYZ';
}
Have fun, play with it:
http://jsfiddle.net/lcoderre/WfuAh/97/