Re: Passing multiple options to lua-filter from CLI

["Clément Aubert" <aubert.clement-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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Thanks!

pandoc -v
pandoc 2.14.1
Compiled with pandoc-types 1.22, texmath 0.12.3, skylighting 0.11,
citeproc 0.4.1, ipynb 0.1.0.1
User data directory: /home/caubert/.local/share/pandoc

with the first line (about utils), I now get

Error running filter templates/filters/default-code-class.lua:
templates/filters/default-code-class.lua:1: module 'utils' not found:
        utilsis not one of pandoc's default packages
        no field package.preload['utils']
        no file '/usr/local/share/lua/5.3/utils.lua'
        no file '/usr/local/share/lua/5.3/utils/init.lua'
        no file '/usr/local/lib/lua/5.3/utils.lua'
        no file '/usr/local/lib/lua/5.3/utils/init.lua'
        no file './utils.lua'
        no file './utils/init.lua'
        no file '/usr/local/lib/lua/5.3/utils.so'
        no file '/usr/local/lib/lua/5.3/loadall.so'
        no file './utils.so'
stack traceback:
        [C]: in function 'require'
        templates/filters/default-code-class.lua:1: in main chunk
make: *** [Makefile:281: build/labs/If/index.html] Error 83

without it, I get

Error running filter templates/filters/default-code-class.lua:
templates/filters/default-code-class.lua:7: attempt to index a nil value
(global 'utils')
stack traceback:
        templates/filters/default-code-class.lua:7: in function
'get_default_code_class'
make: *** [Makefile:281: build/labs/If/index.html] Error 83





Le ven. 20 août 2021 à 12:26, William Lupton <wlupton@broadband-forum.org>
a écrit :

> Inline...
>
> On Fri, 20 Aug 2021 at 17:06, Clément Aubert <aubert.clement@gmail.com>
> wrote:
>
>> Thanks a lot for looking into it!
>> It does not seem to produce the desired effect on my end.
>>
>> Could you explain how changing
>> return {{Meta = get_default_code_class},
>>         {Code = add_default_code_class},
>>         {CodeBlock = add_default_code_class}}
>> into
>> return {{Meta=get_default_code_class}, {CodeBlock=add_default_code_class}}
>> (as far as I can tell, this is the only modification) is supposed to
>> achieve the desired effect?
>>
>
> Ah, well I don't think that you included this in your original message, so
> I thought that was the problem :).
>
> return {{Meta = get_default_code_class},
>         {Code = add_default_code_class},
>         {CodeBlock = add_default_code_class}}
>
> You are correct: the only difference is that you have Code. You could
> combine Code and CodeBlock into a single pass, as in:
>
> return {{Meta=get_default_code_class},
>         {Code=add_default_code_class, CodeBlock=add_default_code_class}}
>
> But it _does_ work for me! Maybe add some debug output? Here I'm using my
> own inspect-like function but the standard inspect would probably be
> similar.
>
> Pandoc version? I'm using 2.14.1.
>
> *% *cat default-code-class.lua
>
> utils = require 'utils'
>
>
> local default_code_classes = {}
>
>
> function get_default_code_class(meta)
>
>   utils.temp('meta', meta)
>
>   if meta['default-code-class'] then
>
>     default_code_classes =
> {pandoc.utils.stringify(meta['default-code-class'])}
>
>   end
>
> end
>
>
> function add_default_code_class(el)
>
>   utils.temp(el.tag, el)
>
>   if #(el.classes) == 0 then
>
>     el.classes = default_code_classes
>
>     return el
>
>   end
>
> end
>
>
> return {{Meta=get_default_code_class},
>
>         {Code=add_default_code_class, CodeBlock=add_default_code_class}}
>
>
> *% *LUA_PATH=../?.lua pandoc -L default-code-class.lua code.md -M
> default-code-class="c numberLines"
>
> (#) meta {default-code-class: "c numberLines"}
>
> (#) Code Code {
>
>   attr: Attr {
>
>     attributes: {}
>
>     classes: {}
>
>     identifier: ""
>
>   }
>
>   text: "inline code"
>
> }
>
> (#) CodeBlock CodeBlock {
>
>   attr: Attr {
>
>     attributes: {}
>
>     classes: {}
>
>     identifier: ""
>
>   }
>
>   text: "This is a code block."
>
> }
>
> <p>This is <code class="c numberLines">inline code</code>.</p>
>
> <pre class="c numberLines"><code>This is a code block.</code></pre>
>
> Thanks!
>>
>> Le ven. 20 août 2021 à 11:57, William Lupton <wlupton@broadband-forum.org>
>> a écrit :
>>
>>> I think you need a two-pass filter, one to pick up the metadata and the
>>> other to use it (this is because Meta is called nearly last).
>>>
>>> This works (I've re-ordered your functions and declared a local
>>> variable, but this probably wasn't necessary).
>>>
>>> *% *cat default-code-class.lua
>>>
>>> local default_code_classes = {}
>>>
>>>
>>> function get_default_code_class(meta)
>>>
>>>   if meta['default-code-class'] then
>>>
>>>     default_code_classes =
>>> {pandoc.utils.stringify(meta['default-code-class'])}
>>>
>>>   end
>>>
>>> end
>>>
>>>
>>> function add_default_code_class(el)
>>>
>>>   if #(el.classes) == 0 then
>>>
>>>     el.classes = default_code_classes
>>>
>>>     return el
>>>
>>>   end
>>>
>>> end
>>>
>>>
>>> return {{Meta=get_default_code_class},
>>> {CodeBlock=add_default_code_class}}
>>>
>>>
>>> *% *pandoc -L default-code-class.lua code.md -M default-code-class="c
>>> numberLines"
>>>
>>> <pre class="c numberLines"><code></code></pre>
>>>
>>> On Fri, 20 Aug 2021 at 16:29, Clément Aubert <aubert.clement@gmail.com>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> This question relates to
>>>> https://github.com/jgm/pandoc/issues/2104#issuecomment-595983954
>>>> There is a lua filter containing
>>>>
>>>> ``` lua
>>>> function add_default_code_class(el)
>>>>   if #(el.classes) == 0 then
>>>>     el.classes = default_code_classes
>>>>     return el
>>>>   end
>>>> end
>>>>
>>>> function get_default_code_class(meta)
>>>>   if meta['default-code-class'] then
>>>>     default_code_classes =
>>>> {pandoc.utils.stringify(meta['default-code-class'])}
>>>>   end
>>>> end
>>>> ```
>>>>
>>>> and I'm trying to tweak it so that two classes can be passed from the
>>>> command-line, eg. using
>>>>
>>>> --lua-filter default-code-class.lua -M default-code-class=c, numberLines
>>>>
>>>> but can't find a way.
>>>>
>>>> Thanks!
>>>> Clément.
>>>>
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>>>>
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