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Pug-doc

Pug-doc is a Pug documentation generator. It takes Pug files as input, looks for comments flagged with @pugdoc and puts its contents in an output JSON file. It looks for the immediate next pug code block for output.

This package does not provide a styled interface for the documentation itself. Use Discodip for HTML output of all the examples, which can be used however you like.

You could also use pug-doc-html or pug-doc-markdown for human readable docs. Optionally use pug-doc-faucet for prettier terminal reporting.

Usage

Use the keyword @pugdoc to flag unbuffered block comments inside your pug files. Comments should be written in properly formatted YAML format.

//- @pugdoc
  name: my pugdoc
  description: this is a description for my pug doc
  beep: boop
  foo: faa

see test/fixtures for examples.


HTML Output

The immediate next Pug code block after the comment will be compiled to HTML output. If you need to capture multiple blocks, see Capture multiple blocks

//- @pugdoc
  name: some-node

div.this-is-output-for-pug-doc
div.this-isnt

Mixins

Optionally provide mixin arguments, attributes and example calls. If no examples are given, mixins will not be executed, so no output will be generated.

Arguments and attributes follow the jsdoc param syntax.

//- @pugdoc
  name: my mixin
  description: this is my mixin documentation
  arguments: 
    - {string} arg1 - this is the description of arg1
    - {number} arg2 - this is the description of arg2
  attributes: 
    - {string} attr1 - this is the description of attr1
    - {number} attr2 - this is the description of attr2
  examples:
    - +myMixin('foo', 1)
    - +myMixin('faa', 2, attr1='foo', attr2='faa')
    - 
      name: My mixin
      description: this is my subexample
      examples:
        - |
          +myMixin('beep', 3)

mixin myMixin(arg1, arg2)
  div this is a mixin #{arg1} #{arg2} #{attr1} #{attr2}

Examples

You can add an example or multiple examples with the example or examples keyword, where the former is a YAML string and the latter a YAML list. The block flag will be replaced by the captured block.

For documenting mixins the use of examples is recommended, since mixins will not be executed if no examples are given. For other pug blocks, examples are optional and can be used to add extra context (e.g. a parent div with styling).

single example

//- @pugdoc
  name: example
  example: |
    div.example(style="max-width: 300px")
      block

p this is my example

unnamed examples

//- @pugdoc
  name: example
  examples: 
    - |
      div.example
        block
    - |
      div.example
        block

p this is my example

If an object is found inside the examples list, two things will happen. The subexample is 1) rendered and appended to the rest of the examples and 2) added to a list of fragments. This way a complete, rendered HTML example will be available, while also keeping the named subexamples intact.

named examples and combined example

//- @pugdoc
  name: example
  examples: 
    - 
      name: Subexample 1
      example: |
        div.example1
          block
    - 
      name: Subexample 2
      example: |
        div.example2
          block

p this is my example

The behavior of combining examples into 1 can be turned of by setting example: false.

only named examples

//- @pugdoc
  name: example
  example: false
  examples: 
    - 
      name: Subexample 1
      example: |
        div.example1
          block
    - 
      name: Subexample 2
      example: |
        div.example2
          block

p this is my example

beforeEach

//- @pugdoc
  name: example
  beforeEach: |
    include ./my-mixin
  examples:
    - 
      name: Example 1
      example: +my-mixin(1)
    - 
      name: Example 2
      example: +my-mixin(2)
    - 
      name: Example 2
      beforeEach: 
      example: +my-mixin(3) // ‹- error: my-mixin is undefined

Locals

Pug locals can be also be passed.

//- @pugdoc
  name: tag
  locals:
    foo: foo

div #{foo}

Capture multiple blocks

The capture keyword specifies how many blocks after the comment will be returned. Use capture: all to capture the rest of the document. Use capture: section to capture all items until the next pugdoc tag.

//- @pugdoc
  name: tag
  capture: 3

div 1
div 2
div 3
div nope
div nope

Keywords

  • name used as an id
  • description provide context
  • arguments for mixin arguments.
  • attributes for (mixin) attributes.
  • locals for template locals.
  • beforeEach (string) add pug code before each example
  • afterEach (string) add pug code after each example
  • example
    • (string) for example mixin call or example block, or
    • (false) to prevent rendering of master example combining all examples
  • examples (list) for example mixin calls or example blocks
  • examples.name
  • examples.description
  • examples.example (string)
  • examples.examples (list)
  • examples.beforeEach (string) overwrite beforeEach for single example
  • examples.afterEach (string) overwrite afterEach for single example
  • capture for the number of code blocks to be captured
    • all: the rest of the document until it meets a lower indent
    • section: the rest of the document until it meets a lower indent or a new pugdoc comment
    • number: the exact positive number of blocks

How to use

npm install pug-doc

const pugDoc = require('pug-doc');

pugDoc({
  input: '**/*.pug',
  output: 'anything.json',
  complete: function(){},
  locals: {
    myTemplateLocal: 'foo'
  }
});

Caveats

Mixin dependencies

Mixins are standalone blocks, so you need to include any dependencies inside the mixin.

include ../mixin1.pug

//- @pugdoc
  name: mixin2
  example: +mixin2

mixin mixin2
  +mixin1

Will throw something like TypeError: pug_mixins.mixin1 is not a function on line x. Instead you need to do the include inside the mixin,

mixin mixin2
  include ../mixin1.pug
  +mixin1
+mixin2

or include it inside the example

//- @pugdoc
  name: mixin2
  example: |
    include ../mixin1.pug
    +mixin2

mixin mixin2
  +mixin1

Command line

Optionally use it through the command line.

pug-doc input.pug
pug-doc input.pug --output output.json
pug-doc "**/*.pug" --output output.json

Output file

Output will look something like this.

[
  {
    "meta": {
      "name": "foo",
      "description": "foo description"
    },
    "file": "file.pug",
    "source": "// foo",
    "output": "<!-- foo-->"
  }
]

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