How to use PROP_CODETREE_SUBLEXER to show sublexer code in codetree？

[SamC]

Hello，
When using markdown，I want to show the codetree in codeblock in additional to the markdown codetree. After checking the api，I find maybe the following method is helpful:
ed.set_prop(PROP_CODETREE_SUBLEXER, True)
However，after using that，the sublexer codetree didn't appear in codetree sidebar. Could you please give some guidance for how to do this？
Thanks！

[main Alexey]

this property allows sublexer (of current lexer, ie Markdown) to show sublexer nodes in the code-tree.
but Markdown don't have sublexer with code-tree support, or it does?

[SamC]

this property allows sublexer (of current lexer, ie Markdown) to show sublexer nodes in the code-tree.
but Markdown don't have sublexer with code-tree support, or it does?

I use get_sublexer_range and see that code in codeblock will be token as sublexer (like python,JavaScript),but the codetree in codeblock can't been seen in sidebar.

[SamC]

this property allows sublexer (of current lexer, ie Markdown) to show sublexer nodes in the code-tree.
but Markdown don't have sublexer with code-tree support, or it does?

I use get_sublexer_range and see that code in codeblock will be token as sublexer (like python,JavaScript),but the codetree in codeblock can't been seen in sidebar.

[main Alexey]

I don't get it. give me the full lexer .lcf file (if it 's changed) and exammple markdown file.

only _changed_ Markdown lexer will be able to show sublexer nodes.
in the SynWrite's "Lexer properties" dialog you can see 'Sublexers' tab which setups included sublexers.

[SamC]

Maybe I misunderstand the usage of it.
For a file below，I want to show the python codetree in Sec3 in together with the original Markdown code tree，how to do that？

[main Alexey]

now I see what you mean. fenced code-block in Markdown.
I will study this. currently I don't know.

[main Alexey]

it cannot be solved. reason: code-tree is built here NOT using EControl engine, but using Pascal tree-helper for Markdown.
Pascal tree-helpers do not allow sublexer nodes. sorry.

[SamC]

I see，then what's the use of ed.set_prop(PROP_CODETREE_SUBLEXER, Ture)？ The description says: "PROP_CODETREE_SUBLEXER: bool: enable code-tree to show nodes from sublexer(s) of current lexer."
Sublexer means the user defined additional lexer for Markdown？
I find that the "# sec5" in fenced-block will not be recognized as Markdown title，that means if I define some additional lexer for Markdown，it will not be recognized in fenced-block？

[SamC]

BTW，where can I find the description about how to make pascal tree-helper for cudatext？I remember I've seen that before，that will be faster than python tree helper， right？