Modified changelog parser to deal with special chars

Namely added additional replacements for anything in a html tag (like <code> </code>) and used powershell to help remove any `!` and `<`/`>` characters which were messing things up

Author: Adam-Kay

batch encoder.bat

@@ -1,7 +1,7 @@
 @echo off
 setlocal enabledelayedexpansion
 
-set CurrentVersion=v1.7.0
+set CurrentVersion=v1.7.1
 cls
 
 set "icongray="
@@ -125,13 +125,17 @@ if defined par_updated-from (
 	set "UpdateVersion=v%ver:~1%"
 
 	>%TEMP%\batch_update.tmp findstr "body" %updateFileName%
-	<%TEMP%\batch_update.tmp set /p "entry_body="
-	set "changelog=%entry_body:~11,-1%"
+	set "pwsh_replace=-replace '^!' -replace '^<\/\S*?^>', '#[FORMEND]#' -replace '^<\S*?^>', '#[FORM]#' -replace '^<', '(less)' -replace '^>', '(more)'"
+	for /F "tokens=*" %%g in ('powershell -Command "(Get-Content $env:TEMP\batch_update.tmp) !pwsh_replace! "') do (set entry_body=%%g)
+	set "changelog=%entry_body:~9,-1%"
+	set "changelog=%changelog:#[FORM]#=%"
+	set "changelog=%changelog:#[FORMEND]#=!formatend!%"
 	set "changelog=%changelog:\n#=\n\r\n#%"
 	set "changelog=%changelog:#=#%"
 	set "changelog=%changelog:\r=!formatend!\r%"
 	set "changelog=%changelog: `= %"
 	set "changelog=%changelog:` =!formatend! %"
+
 	>%TEMP%\batch_update.tmp echo %changelog%
 	for %%? in (%TEMP%\batch_update.tmp) do (set /A strlength=%%~z? - 2)
 	if %strlength% gtr 1000 (set "changelog=%changelog:~0,1000%... %textgray%[More]%formatend%")
@@ -167,6 +171,7 @@ if defined par_updated-from (
 		echo %iconyellow% ^^! %formatend% Differing version found^^! ^(%textred%%CurrentVersion%%formatend% -^> %textgreen%%UpdateVersion%%formatend%^)
 		echo Proceeding with update in 5 seconds; close window to cancel.
 	)
+	:: ... anim
 	echo. & echo 
 	for /l %%x in (1, 1, 6) do (
 		timeout /nobreak /t 1 > nul