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make Persian module for recognize persian texts #14

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make Persian module for recognize persian texts #14

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45 changes: 45 additions & 0 deletions Persian/persian.go
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Sorry for the late response, thanks so much for your effort,
May I kindly ask you to add the test, please?

Original file line number Diff line number Diff line change
@@ -0,0 +1,45 @@
package persian

import (
"regexp"
)

var faAlphabet string = `\x{0621}-\x{0628}\x{062A}-\x{063A}\x{0641}-\x{0642}\x{0644}-\x{0648}\x{064E}-\x{0651}\x{0655}\x{067E}\x{0686}\x{0698}\x{06A9}\x{06AF}\x{06BE}\x{06CC}`
var faNumber string = `\x{06F0}-\x{06F9}`

// var faShortVowels string = "َُِ"
var faMixedWithArabic string = `\x{0629}\x{0643}\x{0649}-\x{064B}\x{064D}\x{06D5}`
var faText string = faAlphabet + faNumber //+ faShortVowels
var faComplexText string = faText + faMixedWithArabic
var trimPattern string = `[\"'-+()؟\s.]`

func IsFarsi(
text string,
isComplex bool,
) bool {
return IsPersian(text, isComplex)
}

func IsPersian(
text string,
isComplex bool,
) bool {
regexTrimPattern := regexp.MustCompile(trimPattern)
text = string(regexTrimPattern.ReplaceAll([]byte(text), []byte("")))

var regex string
if isComplex {
regex = faComplexText
} else {
regex = faText
}

persianCompiledRegex := regexp.MustCompile("^[" + regex + "]+&")
for _, item := range persianCompiledRegex.Split(text, -1) {
if item != "" && item != " " {
return false
}

}
return true
}