Regex for Accepting Only Persian Characters

regex for accepting only persian characters

TL;DR

Farsi MUST used character sets are as following:

• Use ^[آابپتثجچحخدذرزژسشصضطظعغفقکگلمنوهی]+$ for letters or use codepoints regarding your regex flavor (not all engines support \uXXXX notation):

  ^[\u0622\u0627\u0628\u067E\u062A-\u062C\u0686\u062D-\u0632\u0698\u0633-\u063A\u0641\u0642\u06A9\u06AF\u0644-\u0648\u06CC]+$
  

• Use ^[۰۱۲۳۴۵۶۷۸۹]+$ for numbers or regarding your regex flavor:

  ^[\u06F0-\u06F9]+$
  

• Use [ ‬ٌ ‬ًّ ‬َ ‬ِ ‬ُ ‬ْ ‬] for vowels or regarding your regex flavor:

  [\u202C\u064B\u064C\u064E-\u0652]
  

or a combination of those together. You may want to add other Arabic letters like Hamza ء to your character set additionally.

Why are [\u0600-\u06FF] and [آ-ی] both wrong?

Although \u0600-\u06FF includes:

• گ with codepoint 06AF
• چ with codepoint 0686
• پ with codepoint 067E
• ژ with codepoint 0698

as well, all answers that suggest [\u0600-\u06FF] or [آ-ی] are simply WRONG.

i.e. \u0600-\u06FF contains 209 more characters than you need! and it includes numbers too!

Whole story

This answer exists to fix a common misconception. Codepoints 0600 through 06FF do not denote Persian / Farsi alphabet (neither does [آ-ی]):

[\u0600-\u0605 ؐ-ؚ\u061Cـ ۖ-\u06DD ۟-ۤ ۧ ۨ ۪-ۭ ً-ٕ ٟ ٖ-ٞ ٰ ، ؍ ٫ ٬ ؛ ؞ ؟ ۔ ٭ ٪ ؉ ؊ ؈ ؎ ؏
۞ ۩ ؆ ؇ ؋ ٠۰ ١۱ ٢۲ ٣۳ ٤۴ ٥۵ ٦۶ ٧۷ ٨۸ ٩۹ ءٴ۽ آ أ ٲ ٱ ؤ إ ٳ ئ ا ٵ ٮ ب ٻ پ ڀ
ة-ث ٹ ٺ ټ ٽ ٿ ج ڃ ڄ چ ڿ ڇ ح خ ځ ڂ څ د ذ ڈ-ڐ ۮ ر ز ڑ-ڙ ۯ س ش ښ-ڜ ۺ ص ض ڝ ڞ
ۻ ط ظ ڟ ع غ ڠ ۼ ف ڡ-ڦ ٯ ق ڧ ڨ ك ک-ڴ ػ ؼ ل ڵ-ڸ م۾ ن ں-ڽ ڹ ه ھ ہ-ۃ ۿ ەۀ وۥ ٶ
ۄ-ۇ ٷ ۈ-ۋ ۏ ى يۦ ٸ ی-ێ ې ۑ ؽ-ؿ ؠ ے ۓ \u061D]

255 characters are fallen under Arabic block (0600–06FF), Farsi alphabet has 32 letters that in addition to Farsi demonstration of digits it would be 42. If we add vowels (Arabic vowels originally, that rarely used in Farsi) without Tanvin (ً, ٍِ ‬, ٌ ‬) and Tashdid (ّ ‬) that are both a subset of Arabic diacritics not Farsi, we would end up with 46 characters. This means \u0600-\u06FF contains 209 more characters than you need!

۷ with codepoint 06F7 is a Farsi representation of number 7 and ٧ with codepoint 0667 is Arabic representation of the same number. ۶ is Farsi representation of number 6 and ٦ is Arabic representation of the same number. And all reside in 0600 through 06FF codepoints.

The shapes of the Persian digits four (۴), five (۵), and six (۶) are
different from the shapes used in Arabic and the other numbers have
different codepoints.

You can see different number of other characters that doesn't exist in Farsi / Persian too and nobody is willing to have them while validating a first name or surname.

[آ-ی] includes 117 characters too which is much more than what someone needs for validation. You can see them all using Unicode CLDR.

Dedicated Regular Expression for Persian alphabet

Persian characters are within the Arabic Unicode block, which ranges from U+0600 to U+06FF (which is specified in character class as \u0600-\u06FF).

function just_persian(str){
    var p = /^[\u0600-\u06FF\s]+$/;

    if (!p.test(str)) {
        alert("not format");
    }
}

Adapted to JavaScript from this question: Regex for check the input string is just in persian language

Regex for accepting Persian characters in address

The problem with your regex is that it contains nested quantifiers that quantify optional patterns.

Use linear logic:

^[\u0600-\u06FF]+(?:[\s0-9()،,-]+[\u0600-\u06FF]+)*$

See the regex demo

Details:

• ^ - start of string
• [\u0600-\u06FF]+ - 1 or more symbols from the given Unicode range
• (?:[\s0-9()،,-]+[\u0600-\u06FF]+)* - 0+ sequences of:
  
  
  • [\s0-9()،,-]+ - 1+ symbols: either whitespace, digits, (, ), ،, , or -
  • [\u0600-\u06FF]+ - 1 or more symbols from the given Unicode range
• $ - end of string.

persian character regex with english and persian number

Your pattern already seems to cover Persian numbers, so if all it is missing is English numerals, you may simply add them to the regex character class:

/^[\u0600-\u06FF\s0-9]+$/

See here for a chart of Unicode symbols for Persian numbers.

Using regex in php to just select and echo out persian chars

سلام عزیزم

$string = preg_replace("/[a-zA-Z0-9]/", "", $string);

You can simply remove all English alphabetical characters and all numbers from the string

OR : you can do it reverse :

$string  = preg_replace("/[^ الف-ی]/i", "", $string);

This will remove all characters except Persian chars , This way you can remove all persian numbers too : d

How to check persian character format in regex

How about the regex

^(\[1\])\[[\p{L}\s]+\]$

example : http://regex101.com/r/cU1nQ8/1

• \p{L} matches any kind of letter from any language

Regex for check the input string is just in persian language

Check first letter and last letter range in Persian I think something like this:

"^[آ-ی]$"

Regex for both Persian numbers and English numbers

The shortest and most elegant RegEx for this would be:

[۰۱۲۳۴۵۶۷۸۹0-9]

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