Odia is a language with lot of combining characters. Therefore simple reversal of string like str.split('').reverse().join('') will not work . With this naive approach, the reverse of string like ଜଳାର୍ଣ୍ଣବ will end up in ବଣ୍ଣ୍ରାଳଜ where as the expected reversal would be ବର୍ଣ୍ଣଳାଜ.
Even I failed with BreakIterator of Java with Odia Locale. I also tried packages like esrever but failed. Finally I tried with basic decomposition of Unicode Odia syllables. A string like ଜଳାର୍ଣ୍ଣବ is composed of characters like [ 'ଜ', 'ଳ', 'ା', 'ର', '୍', 'ଣ', '୍', 'ଣ', 'ବ' ], therefore handling the matras and falas did the job. Here is the code in JavaScript:
function reverseOdia(str)
{
var reverseStr = "" ;
var chars = [...str] ;
var maatraas = "ାିୀୁୂୃେୈୋୌଂଁ";
var isEnd = false ;
syllable = "" ;
for (let index = 0; index < str.length; index++) {
char = str[index] ;
nextChar = str[index+1] ;
syllable += char ;
if (maatraas.indexOf(nextChar) != -1 ) {
syllable += nextChar ;
index++ ;
isEnd = true ;
}
else {
if( nextChar == '୍') {
isEnd = false ;
syllable += nextChar ;
index++ ;
}
else {
isEnd = true ;
}
}
if (isEnd)
{
reverseStr = syllable + reverseStr ;
syllable = "" ;
}
}
return reverseStr ;
}
str = "ଜଳାର୍ଣ୍ଣବ" ; // କଟକ // ଅସତ୍କର୍ମ // ନୃପସ୍ଥାୟକ ;
console.log(reverseOdia(str)) ;
