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Insert Right-to-Left code in UTF-16 string?

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I've been asked to write a script that will do this:

It will start with a UTF-16 text file with Arabic or Hebrew text, including line numbering, like this:

1. tfeL-to-thgiR

("tfeL-to-thgiR" represents real Right-to-Left text.)

What I want the script to do is insert a Right-To-Left code after the numeral "1" and (I think) after the "." so that the "1." will appear at the right of the text, like this:

tfeL-to-thgiR .1

Normally, numerals are coded Left-to-Right, so all Windows apps put the "1." on the left side of the text.

What I see online is that the way to fix this is put an RTL code after the number (and maybe the punctuation) in order to accomplish this. So I got the idea that I could search for this binary string:

0D 00 0A 00 31 00

and insert the RTL code after it. The internet tells me that the UTF-16 code for this mark is 20 0F.

I found a _BinaryReplace function here:

and I tried to use it this way (replacing only the line numbering "1." for simplicity):

$sInFile = "infile.txt" ; Original in file
$sFind = "0D000A003100" ; MSFT 5.0 Original hex to find
; this is rtl code: "20 0F"
$sReplace = "0D000A003100200F" ; SMASHLY! New hex to replace
$sOutFile = "outfile.txt" ; New edited out file

_BinaryReplace($sInFile, $sFind, $sReplace, $sOutFile)

But I ended up with a degree sign next to the numeral 1.

Am I missing something obvious? Thanks for any help.



Edited by emendelson
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You can use the Unicode codepoints mentionned here:


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15 hours ago, jchd said:

You can use the Unicode codepoints mentionned here:


That is exactly what I'm trying to do - I've tried many varieties of inserting codepoints, but I keep getting characters instead. I'll keep trying and wlll report back with any success.

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