FunctionList Confused

Lycan Thrope

@michael-vincent
Maybe this will clarify what I mean. I have taken these variations of the syntax for the Class declaration starting line. (Watch for wrap):

class TruckNotebookForm of TBASE from :Truck:Truckbase.cfm
class PlainObjectListForm of FORM
class FrameCtrl(frameObj) of dBCWndCtrl custom
class dBCWndCtrl
class FrameAppCtrl of FrameCtrl custom
class ToolButtonFx(oParent) of Toolbutton(oParent) custom
class MenuFx(oParent,cName)
class dContainersForm of DFORM from “dForm.cfm”
class LGCENTRYFIELD(parentObj, name) of ENTRYFIELD(parentObj, name) custom

I have come up with variations of the regex to match all of these, the last ones working the best to cover all variations. (Watch wrap):

1: ^(class)\s([a-zA-Z0-9]+)\s([a-zA-Z0-9+]+)\s([a-zA-Z0-9+]+)
2: ^(class)\s(\w*)\s(\w*)\s(\w*)
3: (?x)^[\t\x20](class)[\t\x20]+((\w+)|(\w+)[\x20]+(((\w+)(,\w+)?))?)?((\w+|[^\r\n])[\t\x20]+)(custom)? <—best
4: (class)[\t\x20](\w+)([\t\x20]?(\w(,[\t\x20]?\w*)?))?([\t\x20]of[\t\x20]\w((\w*(,[\t\x20]?\w*)?))?([\t\x20]custom)?([\t\x20]from\t\x20)?)?
5: (class)[\t\x20](\w+)([\t\x20]?(\w(,[\t\x20]?\w*)?))?(([\t(\x20]of)[\t\x20]\w((\w*(,[\t\x20]?\w*)?))?([\t\x20]custom)?([\t\x20]from\t\x20)?)?
6: (class)[\t\x20](\w+)([\t\x20]?(\w(,[\t\x20]?\w*)?))?([\t(\x20]of\t\x20)?((\w(,[\t\x20]?\w*)?))?([\t\x20]custom)?([\t\x20]from\t\x20)?
7: (?:class)[\t\x20](?‘Classname’\w+)([\t\x20]?(\w(,[\t\x20]?\w*)?))?(([\t(\x20]of)\t\x20((\w(,[\t\x20]?\w*)*?))?(\t\x20)?([\t\x20]from\t\x20)?)?

Now having done that, what’s the next step, or did I do it right, or have I included enough information to get what I need in “mainexpr”, and where do I get “nameexpr” to extrapolate from that?..How do I seperate the wheat from the chaff, so to speak? If you run this through regex101.com, it works like a charm. Trying to put it in the .xml file, hasn’t been as successful. ::shrug::

Lee

Lycan Thrope

@lycan-thrope
Yikes, it looks like the forum editor did some editing of my strings in the regex…argh…but I hope you get the point. I’m knowing just enough to be dangerous. :)

Lee

PeterJones

@lycan-thrope said in FunctionList Confused:

Yikes, it looks like the forum editor did some editing of my strings in the regex

You should read the FAQ: Formatting Forum Posts

Lycan Thrope

@peterjones
Apparently, I need to re-read it…thanks. :)

Lee

Lycan Thrope

@lycan-thrope Test if this works? Here’s hoping. :)
1: ‘^(class)\s([a-zA-Z0-9]+)\s([a-zA-Z0-9+]+)\s([a-zA-Z0-9+]+)’
2: ‘^(class)\s(\w*)\s(\w*)\s(\w*)’
3: ‘(?x)^[\t\x20](class)[\t\x20]+((\w+)|(\w+)[\x20]+(((\w+)(,\w+)?))?)?((\w+|[^\r\n])[\t\x20]+)(custom)?’
4: '(class)[\t\x20](\w+)([\t\x20]?(\w(,[\t\x20]?\w*)?))?([\t\x20]of[\t\x20]\w((\w*(,[\t\x20]?\w*)?))?([\t\x20]custom)?([\t\x20]from’[‘\t\x20’]'(:\w:\w*.\w*|“\w*.\w*”))?)?’
5: ‘(class)[\t\x20](\w+)([\t\x20]?(\w*(,[\t\x20]?\w*)?))?(([\t(\x20]of)[\t\x20]\w((\w*(,[\t\x20]?\w*)?))?([\t\x20]custom)?([\t\x20]from’[‘\t\x20’]'(:\w:\w*.\w*|“\w*.\w*”))?)?’
6: ‘(class)[\t\x20](\w+)([\t\x20]?(\w*(,[\t\x20]?\w*)?))?([\t(\x20]of’[‘\t\x20’]'(\w))?((\w*(,[\t\x20]?\w*)?))?([\t\x20]custom)?([\t\x20]from’[‘\t\x20’]'((:\w:\w*.\w*)|(“\w*.\w*”)))?’
7: ‘(?:class)[\t\x20](?‘Classname’\w+)([\t\x20]?(\w*(,[\t\x20]?\w*)?))?(([\t(\x20]of)‘[’\t\x20’]'(?‘Superclass’\w)((\w*(,[\t\x20]?\w*)?))?(‘[’\t\x20’]‘(?‘Custom’custom))?(’[’\t\x20’]‘from’[‘\t\x20’]'(:\w:\w*.\w*|“\w*.\w*”))?)?’

Lycan Thrope

@lycan-thrope
Unfortunately, the backticks to make the multiline brackets work, will have to be manually removed to run the regex’s…and the backticks around the whole regex did not turn it red typewriter text. :(

Lee

Lycan Thrope

@lycan-thrope Hmmmm Let me try this. Test
'red typewriter text’1: ^(class)\s([a-zA-Z0-9]+)\s([a-zA-Z0-9+]+)\s([a-zA-Z0-9+]+)

Michael Vincent

@Lycan-Thrope
@michael-vincent said in FunctionList Confused:

I think I had an epiphany about how the regex fits into the FunctionList, and would appreciate an up or down on if the understanding is correct, bearing in mind, I’m just picking up regex, the boost flavor, and learning the NPP FunctionList functionality.

Have you read the user manual that explains basic Function List behavior?

Maybe this community post is a little more detailed than the user manual?

Cheers.

PeterJones

@lycan-thrope said in FunctionList Confused:

will have to be manually removed to run the regex’s

You have read the FAQ wrong.

the syntax

1. `^(class)\s([a-zA-Z0-9]+)\s([a-zA-Z0-9+]+)\s([a-zA-Z0-9+]+)`

renders as

^(class)\s([a-zA-Z0-9]+)\s([a-zA-Z0-9+]+)\s([a-zA-Z0-9+]+)

which you can then just copy/paste the red text.

Please note that what you had,

1: ‘^(class)\s([a-zA-Z0-9]+)\s([a-zA-Z0-9+]+)\s([a-zA-Z0-9+]+)’

is not the same as

1: `^(class)\s([a-zA-Z0-9]+)\s([a-zA-Z0-9+]+)\s([a-zA-Z0-9+]+)`

which renders correctly as
1: ^(class)\s([a-zA-Z0-9]+)\s([a-zA-Z0-9+]+)\s([a-zA-Z0-9+]+)

The ` key (often called “backtick” or “grave”) is the one that on a standard US keyboard is the same key as ~, but unshifted . You are typing the single-quote / apostrophe key ' (which on a US keyboard, is the unshifted version of ", the double quote). The single-quote in the forum is then being rendered as ‘smart single quotes’ ‘...’ in your post.

The Formatting Forum Posts gives you plenty of copies of the ` character, which you can copy/paste if you are unable to type the character on your keyboard.

Lycan Thrope

@peterjones said in FunctionList Confused:

`

Peter, thanks for clarifying that for me. I just want to show you why I used that character, besides not realizing where the backtick key was. In this screenshot of your message to me, as well as in the documentation FAQ for posting, I highlighted the character to see if these old eyes could make out what it was, and as you see, the little pop up that “says” what it is, is mistaken. :) Thanks for fixing that for me. :) Screenshot of what I saw:

So really, thanks for clearing that up for me. :)

Lee

Lycan Thrope

@lycan-thrope
So…let’s try this again, so I can see if it work right, with just the backtick.
7: (?:class)[\t\x20]*(?'Classname'\w+)([\t\x20]*?\(\w*(,[\t\x20]?\w*)*?\))?(([\t(\x20]of)[\t\x20](?'Superclass'\w*)(\(\w*(,[\t\x20]?\w*)*?\))?([\t\x20](?'Custom'custom))?([\t\x20]from[\t\x20](:\w*:\w*\.\w*|"\w*\.\w*"))?)?

Woohoo…the preview shows it working, but as per the FAQ let’s see if it does it without all the backticking in side the regex on the multiline brackets. :)

Lee

Lycan Thrope

@lycan-thrope One more time…with the whole thing. :)

These are the regexs I built leading up to the final ones (4,5,6,7) that work with the complete line in some or fashion. Still need to watch the word wrap.

1: ^(class)\s([a-zA-Z0-9]+)\s([a-zA-Z0-9+]+)\s([a-zA-Z0-9+]+)
2: ^(class)\s(\w*)\s(\w*)\s(\w*)
3: (?x)^[\t\x20]*(class)[\t\x20]+((\w+)|(\w+)[\x20]+(\((\w+)(,\w+)?\))?)?((\w+|[^\r\n]*)[\t\x20]+)*(custom)?
4: (class)[\t\x20]*(\w+)([\t\x20]*?\(\w*(,[\t\x20]?\w*)*?\))?([\t\x20]of[\t\x20]\w*(\(\w*(,[\t\x20]?\w*)*?\))?([\t\x20]custom)?([\t\x20]from[\t\x20](:\w*:\w*\.\w*|"\w*\.\w*"))?)?
5: (class)[\t\x20]*(\w+)([\t\x20]*?\(\w*(,[\t\x20]?\w*)*?\))?(([\t(\x20]of)[\t\x20]\w*(\(\w*(,[\t\x20]?\w*)*?\))?([\t\x20]custom)?([\t\x20]from[\t\x20](:\w*:\w*\.\w*|"\w*\.\w*"))?)?
6: (class)[\t\x20]*(\w+)([\t\x20]*?\(\w*(,[\t\x20]?\w*)*?\))?([\t(\x20]of[\t\x20](\w*))?(\(\w*(,[\t\x20]?\w*)*?\))?([\t\x20]custom)?([\t\x20]from[\t\x20]((:\w*:\w*\.\w*)|("\w*\.\w*")))?
7: (?:class)[\t\x20]*(?'Classname'\w+)([\t\x20]*?\(\w*(,[\t\x20]?\w*)*?\))?(([\t(\x20]of)[\t\x20](?'Superclass'\w*)(\(\w*(,[\t\x20]?\w*)*?\))?([\t\x20](?'Custom'custom))?([\t\x20]from[\t\x20](:\w*:\w*\.\w*|"\w*\.\w*"))?)?

PeterJones

@lycan-thrope said in FunctionList Confused:

I highlighted the character to see if these old eyes could make out what it was, and as you see, the little pop up that “says” what it is, is mistaken.

The word “QUOTE” shows up like that if you select any text:

It is not telling you what character that is. It is the Forum asking you if you would like to use the selected text as the QUOTE portion in your reply.

If you have multiple lines of example text, use the LITERAL TEXT BOXES , not the RED TYPEWRITER TEXT.

But this is getting off the point, and you have shown your regexes. So unless you have more about FunctionList, I think we’ve spent enough on forum formatting.

Lycan Thrope

@michael-vincent
Thanks Michael, that’s where some of the understanding is coming from, with the ability to read english via the Java.xml versus the cpp.xml, but since I’m not completely familar with java’s syntax and variations, it’s still clear as mud, but getting clearer. :-)

Lycan Thrope

@peterjones
I do appreciate your help, in this regard. I’ve been around awhile, but have to admit, posting in here, is a little different that what I’m used to, even after reading the FAQ…thanks for that clarification, though. Hate to look dumber than I am. :)

Lee

Lycan Thrope

@lycan-thrope
Okay, so no after beating the keyboard and my head all day, I figured it was time to present what I have tried and still doesn’t work…but to be fair, all I’m trying to do is get FunctionList to see my class first. Baby steps.

This is my functionlist file:

<?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>
		<!-- ========================================================= [ dBASEPlus ] -->
		<parser
			displayName="dBASEPlus"
			id         ="dbaseplus"
			commentExpr="(?s:/\*.*?\*/)|(?m-s://.*?$)"
		>
			<classRange
				mainExpr="(?x)                                                                 # use inline comments
					^[\t\x20]*                                                                 # leading whitespace
                    class							# class keyword
					[\t\x20]*(\w+)							# class name
										# Following the class name there is the option of parameters, and if so
										# the first entry inside the parens is required, whether there is other 
										# parameters or not, once the parens go up, the first is required. ie:
										# class FrameCtrl(frameObj)
					([\t\x20]*?\(\w*	# first and required parameter
					((,[\t\x20]?\w*)*)?\))?			# the following optional/additional	parameters
													# For the rest of the class declaration, after the class name
													# all other options are part of one big optional set, that 
													# follows 'of' and can be populated by one of several 
													# options. The first and most prevalent is the Superclass
													# name that the class is being subclassed from, and it's
													# options of parameters and again, if it has parameters at
													# least the first one is required ie.:
													# class class ToolButtonFx(oParent) of Toolbutton(oParent)
					(([\t(\x20]of)[\t\x20]\w*(\(\w*((,[\t\x20]?\w*)*)?\))?
													# The next possible option is that it is a custom object and
													# needs to be in this line so if the object or form is opened
													# up in the dBASE IDE, the designers in it won't mess up
													# the object by streaming out missing parts or overriding 
													# properties or objects and functions.
					([\t\x20]custom)?
													# The next option is that the class is being subclassed from
													# another object that is contained elsewhere and the compiler
													# needs to know this reference.  There are two options for 
													# pointing to the file. The first is an Alias path in the IDE
													# that can be accessed by the compiler in the environment, or 
													# second, it is in the current directory and only the name is
													# needed...or it has a path that can be listed here, but this
													# is bad practice, and an Alias is recommended if the file is in
													# a place other than the current directory. If it is, the name
													# can be used in quotes as a string that gets passed to the 
													# compiler. Both follow the word 'From'. The Alias directory
													# is a name that is enclosed in two colons, one immediately
													# before the Alias name and one immediately after, no spaces.
					([\t\x20]from[\t\x20](:\w*:\w*\.\w*| \x22 \w*\.\w* \x22))?)?   # end of class declaration line
					
				"
				
				closeSymbole="endclass"
			>
				<className>
					<nameExpr
						expr="(?x)
						[\t\x20]*?
						^class					# class  keyword
						[\t\x20]*
						\K(\w+)                   # Class name
						"
					/>
					
				</className>
				<function
					mainExpr="                                                                     # function body
					"
				>
					<functionName>
						<funcNameExpr
							expr="                                                            # function parameters
							"
						/>
						<funcNameExpr
							expr="
							"
						/>
					</functionName>
				</function>
			</classRange>
			<function
				mainExpr="                                                                         # function body
				"
			>
				<functionName>
					<nameExpr
						expr="                                                                # function parameters
						"
					/>
					<nameExpr
						expr="
						"
					/>
				</functionName>
				<className>
					<nameExpr expr="
					" />
				</className>
			</function>
		</parser>
	</functionList>
</NotepadPlus>

This is a basic file to be searched by the FunctionList dbaseplus.xml:

** END HEADER -- do not remove this line
//
// Generated on 10/13/2021
//
parameter bModal
local f
f = new PlainObjectListForm()
if (bModal)
   f.mdi = false // ensure not MDI
   f.readModal()
else
   f.open()
endif

class PlainObjectListForm of FORM
   with (this)
      onOpen = class::FORM_ONOPEN
      doublebuffered = true
      metric = 6	// Pixels
      colorNormal = "Gray"
      height = 529.0
      left = 110.0
      top = 29.0
      width = 1092.0
      sizeable = false
      refreshAlways = false
      pageno = 0
   endwith

   function form_onOpen()

      form.testcontainer.vscrollbar1.currentValue = ;
                               form.testcontainer.vscrollbar1.value
      form.testContainer.aContainers = new array()
      form.testContainer.ncontainers = 0
      form.testContainer.nSpacing = 2
      return

endclass

I hope the fact that I don’t have a function search in it yet won’t be the problem, as all I want to do is verify I have the regex, the .xml file correct, and the settings and files in the right place. If it’s my regex and .xml, I won’t feel bad, as it’s new…what can I say, but I think I did it right. ::shrug::

Sorry if the .xml file is a bit long, but I copied it and emptied the C++ code figuring I was going to do this quick and left all the mixed parser stuff in it. ;-( Anyone see, off hand what I’m doing wrong or what’s wrong? I get no acknowledgement of even the file existence in the FunctionList head…that can’t be a good sign. :-(

Lee

PeterJones

@lycan-thrope ,

Without any functions defined, the classes don’t show up in the list, even if they do match your text, so you aren’t going to be able to see it work without a function (even if it’s the simplest possible function).

If you want to individually test the regex, you can use the FIND or MARK dialogs with the same expression, which makes it easier to try variants.

If I try your class expression in the FIND dialog, it says that it’s an invalid expression.

When defining a new parser, I generally skip the openSymbole and closeSymbole expressions, and just deal with the mainExpr.

Next, the way I do it, the mainExpr needs to match all of the text in the class – so the whole class … endclass – not just the introductory line, because it only finds class-functions (ie, methods) if they exist inside. If I’m reading your expression right, it’s only matching the single class line. (Maybe with the closeSymbole, you no longer need mainExpr to match as much… but I wouldn’t trust that without more experimentation.)

And when debugging, I try to make the main expression as simple as possible, especially at first; if it needs more complexity later on, I add it… but for helping you get something tot; when debugging it, I start with the simplest form. Which, I think for yours, would be "match from class to endclass. So I’d be tempted to start with mainExpr="(?xms) ^ \h* class \h+.* ^ \h* endclass" – when I use that in a FIND in your document, it finds from class to endclass as I think I expect.

Your class name expression looks reasonable, and does match the class name.

For simple testing, I would then define the function mainExpr="(?x) \h* function \h+ (\w+)"

But, as always, something goes wrong when I try things starting too complex. So I comment out the classRange, and just start with a simple function section:

			<function
				mainExpr="(?x) \h* function \h+ (\w+)"
			>
				<functionName>
					<nameExpr expr="(?x) \h* function \h+ \K (\w+)"
					/>
				</functionName>
			</function>

If I do that, and add a block before your class

function outsideAnything()
   here
   return

(might not be valid, just using it for the parser), then reload when the dbaseplus.xml parser is properly linked in the overrideMap.xml, and the existing file is associated with the dBASEPlus UDL, I get:

… so that means I am doing something right so far.

But when I try to use that same <function> block inside the <classRange> block, it won’t find the class (and no longer shows the form_onOpen)…

Unfortunately, while I’m usually able to get it eventually, it takes time for me. And I’ve spent as much as I can on this for now. maybe I’ll have spare time later today to work on it. But, if nothing else, this will give you a good starting point, because with the classRange commented out as here, it finds two functions, which is at least a starting point for debug:

<?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>
		<!-- ========================================================= [ dBASEPlus ] -->
		<parser
			displayName="dBASEPlus"
			id         ="dbaseplus"
			commentExpr="(?s:/\*.*?\*/)|(?m-s://.*?$)"
		>
			<!--classRange
				mainExpr="(?xms) ^ \h* class \h+.* ^ \h* endclass"
			>
				<className>
					<nameExpr
						expr="(?x) [\t\x20]*? ^class [\t\x20]* \K(\w+)"
					/>
					
				</className>
				<function
					mainExpr="(?x) \h* function \h+ (\w+)"
				>
					<functionName>
						<nameExpr expr="(?x) \h* function \h+ \K (\w+)"
						/>
					</functionName>
				</function>
			</classRange-->
			<function
				mainExpr="(?x) \h* function \h+ (\w+)"
			>
				<functionName>
					<nameExpr expr="(?x) \h* function \h+ \K (\w+)"
					/>
				</functionName>
			</function>
		</parser>
	</functionList>
</NotepadPlus>

and

** END HEADER -- do not remove this line
//
// Generated on 10/13/2021
//
parameter bModal
local f
f = new PlainObjectListForm()
if (bModal)
   f.mdi = false // ensure not MDI
   f.readModal()
else
   f.open()
endif

function outsideAnything()
   here
   return


class PlainObjectListForm of FORM
   with (this)
      onOpen = class::FORM_ONOPEN
      doublebuffered = true
      metric = 6	// Pixels
      colorNormal = "Gray"
      height = 529.0
      left = 110.0
      top = 29.0
      width = 1092.0
      sizeable = false
      refreshAlways = false
      pageno = 0
   endwith

   function form_onOpen()

      form.testcontainer.vscrollbar1.currentValue = ;
                               form.testcontainer.vscrollbar1.value
      form.testContainer.aContainers = new array()
      form.testContainer.ncontainers = 0
      form.testContainer.nSpacing = 2
      return

endclass

Sorry I couldn’t get more working yet…

Lycan Thrope

@peterjones
Thank you very much, Peter. As I said, any help from another pair of eyeballs is appreciated, especially from someone who has done one before. At the least, you’ve confirmed some of what I wanted to know, that at least I might be getting the conceptualization of what to do to extract the names. I know that dBASE, as much as I like it, is somewhat of a loosely typed and ambiguously structured language, certainly nothing like C that I learned long ago, but it does still have stucture and trying to extrapolate from that to make it work in NPP is my problem to solve, I just wanted to know if I was doing something right or wandering in a far off land.

Thanks for the tips and I’ll work on what you’ve provided to see if I can’t get a better result. I know I read in the FAQ about the Function issue, which is why I was hoping it wouldn’t be the stopping issue for this, but apparently, it might be the classrange/class/function combination that I neeed to work right since that is the area you point out. Thanks for getting it to provide something, so I have a start.

Lee

Michael Vincent

@lycan-thrope said in FunctionList Confused:

@peterjones
Thank you very much, Peter.

Note I think there is an error in @PeterJones functionName block in the classRange tags. I think it should be :

					<functionName>
						<funcNameExpr expr="(?x) \h* function \h+ \K (\w+)"
						/>
					</functionName>

Notice funcNameExpr instead of just nameExpr.

Cheers.

PeterJones

@michael-vincent said in FunctionList Confused:

Note I think there is an error in @PeterJones functionName block in the classRange tags.

And when I fix that, I now see the function in the class.

So @Lycan-Thrope , that’s what you need to fix, and my simple mixed parser now works with your example code.

<?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>
		<!-- ========================================================= [ dBASEPlus ] -->
		<parser
			displayName="dBASEPlus"
			id         ="dbaseplus"
			commentExpr="(?s:/\*.*?\*/)|(?m-s://.*?$)"
		>
			<classRange
				mainExpr="(?xms) ^ \h* class \h+.* ^ \h* endclass"
			>
				<className>
					<nameExpr
						expr="(?x) [\t\x20]*? ^class [\t\x20]* \K(\w+)"
					/>
					
				</className>
				<function
					mainExpr="(?x) \h* function \h+ (\w+)"
				>
					<functionName>
						<funcNameExpr expr="(?x) \h* function \h+ \K (\w+)"
						/>
					</functionName>
				</function>
			</classRange>
			<function
				mainExpr="(?x) \h* function \h+ (\w+)"
			>
				<functionName>
					<nameExpr expr="(?x) \h* function \h+ \K (\w+)"
					/>
				</functionName>
			</function>
		</parser>
	</functionList>
</NotepadPlus>

(Since I used the (?x), you can go back and add newlines and comments to document the regex again; I just collapsed them because it’s easier to copy/paste into FIND dialog that way)