okay, this is an xml line from .lang file which specifies syntax highlighting for a text editor

<pattern-item _name = "Hex Number" style = "Base-N Integer">
    <regex>\b0[xX][0-9a-fA-F]+([Uu]([Ll]|LL|ll)?|([Ll]|LL|ll)[Uu]?)?\b</regex>
</pattern-item>

this will highlight "0xDEADBEEF" or "0X03" and etc

this is C style hexidecmal format
0x# or 0X#

i would like support added for

$#      <- pascal style
#h or #H <- asm style