functionList/rust.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>
		<!-- =========================================================== [ C ] -->
		<parser
			displayName="Rust"
			id         ="rust_function"
			commentExpr="(?x)                                               # Utilize inline comments (see `RegEx - Pattern Modifiers`)
							(?s:\x2F\x2A.*?\x2A\x2F)                        # Multi Line Comment
						|	(?m-s:\x2F{2}.*$)                               # Single Line Comment
						"
		>
			<function
				mainExpr="(?x)                                              # free-spacing (see `RegEx - Pattern Modifiers`)
						^\h*                                                # optional leading whitespace at start-of-line
						(?:
							(?-i:
								async
							|	const
							|	(?-i:extern\s+(?s:\x22(?:[^\x22\x5C]|\x5C.)*\x22))
							|	unsafe
							)
							\s+
						)*
						(?-i:fn)\s+
						\K                                                  # discard text matched so far
						(?:[a-zA-Z][a-zA-Z0-9_]*|_[a-zA-Z0-9_]+)            # valid character combination for identifiers
						(?:&lt;.*$gt;)?                                     # optional generic params
						(?:\s*\([^()]*\))?                                  # optional parameter list
					"
			>
				<!-- comment out the following node to display the method with its parameters -->
				<functionName>
					<nameExpr expr="\w+" />
				</functionName>
			</function>
		</parser>
	</functionList>
</NotepadPlus>