FunctionList classrange question

[oirfeodent]

All the sub-sections are definite.
The main sections inside the <> can be anything based on the description; but has to exist.
So, “after.<charsDigitsPeriods>.<digitsOnly>:” should end with a “.<digit>:” to be a valid MainSection.
None of the main sections are mandatory (even functions: main section can be skipped).
None of the sub sections are mandatory (But atleast one sub-section would exist (Though not mandatory))

Apart from this, there are two kinds of script.

1. Regular Script… which will have atleast one of the above sections and optionally the “functions:” sections along with functions.
2. dll script… which doesn’t have any of the sections, but only functions.

Sample dll script:

|This is a dll script, which does not have any sections.
function extern long func1(long var1)
{
	|do something
}

function void funct2(long var2)
{
	|do something
}

Sample regular script:

choice.test.123:
before.choice:
    funct1(10)
on.choice:
    funct1(10)

before.program:
    func1(10)
    
functions:
function func1(long var1)
{
    | Do Something 1.
}

Regards,

[oirfeodent]

@MAPJe71
The response is multiple replies, as I cant edit the original post. Thx.

Regards,

[MAPJe71]

@oirfeodent Please try the following parser:

			<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
			|   Based on:
			|       https://notepad-plus-plus.org/community/topic/14494/functionlist-classrange-question
			\-->
			<parser
				displayName="BaanC Sections v3"
				id         ="baanc_section"
			>
				<classRange
					mainExpr    ="(?x)                                          # free-spacing (see `RegEx - Pattern Modifiers`)
							(?im)                                               # case-insensitive, ^ and $ match at line breaks
							(?(DEFINE)                                          # definition of sub-routines
								(?'SECTION'
									^\h*                                        # optional leading whitespace at start-of-line
									(?:                                         # known section names
										(?:after|before)\.(?:report\.\d+|\w+(?:\.\w+)*\.\d+)
									|	(?:field|zoom\.from)\.(?:all|other|\w+(?:\.\w+)*)
									|	(?:footer|group|header)\.\d+
									|	choice\.\w+(?:\.\w+)*
									|	detail\.\d+
									|	form\.(?:all|other|\d+)
									|	functions
									|	main\.table\.io
									)
									\h*:                                        # end-of-section-header indicator
								)
								(?'SECTION_EMPTY'
									^\h*                                        # optional leading whitespace at start-of-line
									(?:                                         # known `empty` section names
										after\.(?:form\.read|program|receive\.data|update\.db\.commit)
									|	before\.(?:(?:display|new)\.object|program)
									|	declaration
									|	on\.(?:display\.total\.line|error)
									)
									\h*:                                        # end-of-section-header indicator
								)
							)
							(?&amp;SECTION)                                     # section header
							(?s:.*?)                                            # whatever,
							(?=                                                 # ...up till
								(?&amp;SECTION)                                 # ...next section header,
							|	(?&amp;SECTION_EMPTY)                           # ...next `empty` section header
							|	\Z                                              # ...or end-of-text
							)
						"
				>
					<className>
						<nameExpr expr="^\h*\K\w+(?:\.\w+)*\h*:" />
					</className>
					<function
						mainExpr="(?x)                                          # free-spacing (see `RegEx - Pattern Modifiers`)
								(?im)                                           # case-insensitive, ^ and $ match at line breaks
								^\h*                                            # optional leading whitespace at start-of-line
								(?:
									\K                                          # discard text matched so far
									(?:                                         # known sub-section names
										after\.(?:choice|d(?:elete|isplay)|f(?:ield|orm)|group|input|layout|re(?:ad|write)|skip\.(?:delete|(?:re)?write)|write|zoom)
									|	before\.(?:ch(?:ecks|oice)|d(?:elete|isplay)|f(?:ield|orm)|group|input|layout|print|re(?:ad|write)|write|zoom)
									|	check\.input
									|	domain\.error
									|	init\.(?:f(?:ield|orm)|group)
									|	on\.(?:choice|e(?:ntry|xit)|input)
									|	read\.view
									|	ref\.(?:display|input)
									|	selection\.filter
									|	when\.field\.changes
									)
									\h*:                                        # end-of-sub-section-header indicator
								|
									function\h+
									(?:extern\h+)?
									(?:(?:boolean|double|long|string|void|domain\h+[A-Za-z_]\w*)\h+)?
									\K                                          # discard text matched so far
									\w+(?:\.\w+)*                               # function name
									\s*\(                                       # end-of-function-header indicator
								)
							"
					>
						<functionName>
							<funcNameExpr expr="\w+(?:\.\w+)*(?:\h*:)?" />
						</functionName>
					</function>
				</classRange>
				<!--
				|   Note:
				|       Having the following `function`-node active will result in all branches
				|       except the last branch to show their leaves twice in the tree.
				\-->
				<function
					mainExpr="(?x)                                              # free-spacing (see `RegEx - Pattern Modifiers`)
							(?im)                                               # case-insensitive, ^ and $ match at line breaks
							^\h*                                                # optional leading whitespace at start-of-line
							(?:
								\K                                              # discard text matched so far
								(?:                                             # known `empty` section names
									after\.(?:form\.read|program|receive\.data|update\.db\.commit)
								|	before\.(?:display\.object|new\.object|program)
								|	declaration
								|	on\.(?:display\.total\.line|error)
								)
								\h*:                                            # end-of-section-header indicator
							|
								(?i:function)\h+
								(?:extern\h+)?
								(?:(?:boolean|double|long|string|void|domain\h+[A-Za-z_]\w*)\h+)?
								\K                                              # discard text matched so far
								\w+(?:\.\w+)*
								\s*\(
							)
						"
				>
					<functionName>
						<nameExpr expr="\w+(?:\.\w+)*(?:\h*:)?" />
					</functionName>
				</function>
			</parser>

[oirfeodent]

@MAPJe71 said:

                            (?i:function)\h+
                            (?:extern\h+)?
                            (?:(?:boolean|double|long|string|void|domain\h+[A-Za-z_]\w*)\h+)?
                            \K                                              # discard text matched so far
                            \w+(?:\.\w+)*
                            \s*\(

I have changed the \h+ to \s+ so that functions spanning multi-lines are shown properly. Do you see any issues with that?

Another point is about embedded comments… for below sample

function extern 	|Test
long test()
{

}

if I remove the “|Test” it is shown in the Function List panel… but, with the comment in place it doesn’t show this function.
So, is there a possibility to check for the presence of comments and ignore the same?

@MAPJe71 Thx so far for your time and effort.

[MAPJe71]

@oirfeodent comments “embedded” in the function/method header are not supported (see also parse steps in earlier post).

[oirfeodent]

@MAPJe71
I thought with the <parser> “commentExpr” -attribute it is not possible to have embedded comments.
I was playing around with RegexBuddy with the simplest version of the function parser and used the following regex to have the function name highlighted with embedded comments.

function\s+(\|\w*)*\s+\K\w+(?:\.\w+)*\s*\(

However it failed with the regular function without embedded comment.

function |TEST
test()
{
     |highlighted function name
}

function test()
{
      | No highlight. (I guess regex is not correct to handle both)
}

So, I thought there could be a better way for doing this which I am not aware.
Hence the question, as the “commentExpr” attribute is not defined.

If no other way, then also fine. Thx.

Regards,

[MAPJe71]

@oirfeodent new attempt:

			<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
			|   Based on:
			|       https://notepad-plus-plus.org/community/topic/14494/functionlist-classrange-question
			|
			|   Note(s):
			|   1.  Boost::Regex 1.58-1.59 do not correctly handle quantifiers on subroutine calls
			|       therefore the additional non-capturing group i.e. "(?:(?&amp;COMMENT))?" instead
			|       of simply "(?&amp;COMMENT)?"
			\-->
			<parser
				displayName="BaanC Sections v4.2"
				id         ="baanc_section"
			>
				<classRange
					mainExpr    ="(?x)                                          # free-spacing (see `RegEx - Pattern Modifiers`)
							(?im)                                               # case-insensitive, ^ and $ match at line breaks
							(?(DEFINE)                                          # definition of sub-routines
								(?'SECTION'
									^\h*                                        # optional leading whitespace at start-of-line
									(?:                                         # known section names
										(?:after|before)\.(?:report\.\d+|\w+(?:\.\w+)*\.\d+)
									|	(?:field|zoom\.from)\.(?:all|other|\w+(?:\.\w+)*)
									|	(?:footer|group|header)\.\d+
									|	choice\.\w+(?:\.\w+)*
									|	detail\.\d+
									|	form\.(?:all|other|\d+)
									|	functions
									|	main\.table\.io
									)
									\h*:                                        # end-of-section-header indicator
								)
								(?'SECTION_EMPTY'
									^\h*                                        # optional leading whitespace at start-of-line
									(?:                                         # known `empty` section names
										after\.(?:form\.read|program|receive\.data|update\.db\.commit)
									|	before\.(?:(?:display|new)\.object|program)
									|	declaration
									|	on\.(?:display\.total\.line|error)
									)
									\h*:                                        # end-of-section-header indicator
								)
							)
							(?&amp;SECTION)                                     # section header
							(?s:.*?)                                            # whatever,
							(?=                                                 # ...up till
								\s*
								(?:
									(?&amp;SECTION)                             # ...next section header,
								|	(?&amp;SECTION_EMPTY)                       # ...next `empty` section header
								|	\Z                                          # ...or end-of-text
								)
							)
						"
				>
					<className>
						<nameExpr expr="^\h*\K\w+(?:\.\w+)*\h*:" />
					</className>
					<function
						mainExpr="(?x)                                          # free-spacing (see `RegEx - Pattern Modifiers`)
								(?im)                                           # case-insensitive, ^ and $ match at line breaks
								(?(DEFINE)                                      # definition of sub-routines
									(?'COMMENT'
										\s*\x7C[^\r\n]*                         # trailing comment
										(?:                                     # optional subsequent comment
											(?:\r?\n|\n?\r)                     # - mandatory line-break
											\s*\x7C[^\r\n]*                     # - `trailing` comment
										)*
									)
								)
								^\h*                                            # optional leading whitespace at start-of-line
								(?:
									\K                                          # discard text matched so far
									(?:                                         # known sub-section names
										after\.(?:choice|d(?:elete|isplay)|f(?:ield|orm)|group|input|layout|re(?:ad|write)|skip\.(?:delete|(?:re)?write)|write|zoom)
									|	before\.(?:ch(?:ecks|oice)|d(?:elete|isplay)|f(?:ield|orm)|group|input|layout|print|re(?:ad|write)|write|zoom)
									|	check\.input
									|	domain\.error
									|	init\.(?:f(?:ield|orm)|group)
									|	on\.(?:choice|e(?:ntry|xit)|input)
									|	read\.view
									|	ref\.(?:display|input)
									|	selection\.filter
									|	when\.field\.changes
									)
									\h*:                                        # end-of-sub-section-header indicator
								|
									function                                    # keyword, start-of-function-header indicator
									(?:(?&amp;COMMENT))?                        # optional `embedded` comment
									(?:                                         # optional storage-class specifier
										\s+extern
										(?:(?&amp;COMMENT))?                    # ...with optional `embedded` comment
									)?
									(?:                                         # optional function type specifier
										\s+(?:boolean|double|long|string|void|domain\h+[A-Za-z_]\w*)
										(?:(?&amp;COMMENT))?                    # ...with optional `embedded` comment
									)?
									\s+
									\K                                          # discard text matched so far
									\w+(?:\.\w+)*                               # function identifier
									(?:(?&amp;COMMENT)(?:\r?\n|\n?\r))?         # optional `embedded` comment
									\s*\(                                       # start-of-parameter-list indicator
								)
							"
					>
						<functionName>
							<funcNameExpr expr="\w+(?:\.\w+)*(?:\h*:)?" />
						</functionName>
					</function>
				</classRange>
				<function
					mainExpr="(?x)                                              # free-spacing (see `RegEx - Pattern Modifiers`)
							(?im)                                               # case-insensitive, ^ and $ match at line breaks
							(?(DEFINE)                                          # definition of sub-routines
								(?'COMMENT'
									\s*\x7C[^\r\n]*                             # trailing comment
									(?:                                         # optional subsequent comment
										(?:\r?\n|\n?\r)                         # - mandatory line-break
										\s*\x7C[^\r\n]*                         # - `trailing` comment
									)*
								)
							)
							^\h*                                                # optional leading whitespace at start-of-line
							(?:
								\K                                              # discard text matched so far
								(?:                                             # known `empty` section names
									after\.(?:form\.read|program|receive\.data|update\.db\.commit)
								|	before\.(?:display\.object|new\.object|program)
								|	declaration
								|	on\.(?:display\.total\.line|error)
								)
								\h*:                                            # end-of-section-header indicator
							|
								function                                        # keyword, start-of-function-header indicator
								(?:(?&amp;COMMENT))?                            # optional `embedded` comment
								(?:                                             # optional storage-class specifier
									\s+extern
									(?:(?&amp;COMMENT))?                        # ...with optional `embedded` comment
								)?
								(?:                                             # optional function type specifier
									\s+(?:boolean|double|long|string|void|domain\h+[A-Za-z_]\w*)
									(?:(?&amp;COMMENT))?                        # ...with optional `embedded` comment
								)?
								\s+
								\K                                              # discard text matched so far
								\w+(?:\.\w+)*                                   # function identifier
								(?:(?&amp;COMMENT)(?:\r?\n|\n?\r))?             # optional `embedded` comment
								\s*\(                                           # start-of-parameter-list indicator
							)
						"
				>
					<functionName>
						<nameExpr expr="\w+(?:\.\w+)*(?:\h*:)?" />
					</functionName>
				</function>
			</parser>

[oirfeodent]

@MAPJe71
Thx. PR has been created based on above https://github.com/notepad-plus-plus/notepad-plus-plus/pull/3842
Only change is that domain keyword also checks for . (period) apart from \w class and also allow embedded comments. Can you have a look and approve the changes if you are ok.

If not, let me know.
Regards,

[MAPJe71]

@oirfeodent see PR #3842 for my review.