#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox
Local $sRegex = "(?m)public ([^ ]++) ([a-z])([^ ]*+) { get; set; }"
Local $sString = "public string symbol { get; set; }" & @CRLF & _
"public string pair { get; set; }" & @CRLF & _
"public string contractType { get; set; }" & @CRLF & _
"public string status { get; set; }" & @CRLF & _
"public string baseAsset { get; set; }" & @CRLF & _
"public string quoteAsset { get; set; }" & @CRLF & _
"public string marginAsset { get; set; }"
Local $sSubst = "[JsonPropertyName("$2$3")]\npublic $1 \U$2\E$3 { get; set; }"
Local $sResult = StringRegExpReplace($sString, $sRegex, $sSubst)
MsgBox($MB_SYSTEMMODAL, "Result", $sResult)
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm