functionList/batch.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!-- ==========================================================================\
|
|   To learn how to make your own language parser, please check the following
|   link:
|       https://npp-user-manual.org/docs/function-list/
|
\=========================================================================== -->
<NotepadPlus>
	<functionList>
		<!-- ================================ [ Batch / Command Shell Script ] -->

		<parser
			displayName="Batch / Command Shell Script"
			id         ="batch_label"
			commentExpr="(?x)                                               # Utilize inline comments (see `RegEx - Pattern Modifiers`)
							(?m-s:(?i:REM)(?:\h.+)?$)                       # Single Line Comment 1
						|	(?m-s::{2}.*$)                                  # Single Line Comment 2
						"
		>
			<function
				mainExpr="(?x)                                              # Utilize inline comments (see `RegEx - Pattern Modifiers`)
						(?m-s)                                              # enforce strict line by line search
						^                                                   # label starts at the beginning of a line,...
						\h*                                                 # ...can be preceded by blank characters and
						:                                                   # ...starts with a colon
						\K                                                  # keep the text matched so far, out of the overall match
						\w                                                  # a label name has to start with a word character,...
						[\w.\-]+                                            # ...the remainder of the name can contain dots and minus signs and
						\b                                                  # ...ends at a word boundary i.e. discard any trailing characters
					"
			/>
		</parser>
	</functionList>
</NotepadPlus>