Sablon.HTMLConverter.AST (sablon v0.4.4)

Copy Markdown View Source

Dispatch helpers shared by every AST node.

An AST node is a struct whose module implements to_docx/1, children/1, put_children/2 and describe/1. Keeping the contract this small is what lets an application register its own AST class for a custom HTML tag.

Summary

Functions

accept(nodes, visitor)

Applies visitor to ast and, recursively, to its children.

attributes_to_docx(attributes)

Renders an attribute map as XML attributes, prefixed with a space.

children(ast)

The child AST nodes of ast.

convert_style_property(arg1, key, value)

Converts a single CSS property, walking style_chain in order.

describe(nodes)

A compact textual rendering of the tree, mirroring #inspect in the Ruby gem. Useful in tests and when debugging a conversion.

grep(nodes, pattern)

Collects every node in the tree for which pattern matches.

process_properties(style_chain, properties)

Maps CSS properties onto their WordML equivalents.

put_children(ast, children)

Replaces the child AST nodes of ast.

to_docx(nodes)

Serialises an AST node to WordML.

Functions

accept(nodes, visitor)

@spec accept(struct() | [struct()], module() | (struct() -> struct())) ::
  struct() | [struct()]

Applies visitor to ast and, recursively, to its children.

A visitor is a module (or a function) returning the node it was given, possibly modified - which is how Sablon.HTMLConverter.Visitor strips the trailing newline of a paragraph.

attributes_to_docx(attributes)

@spec attributes_to_docx(map() | list()) :: binary()

Renders an attribute map as XML attributes, prefixed with a space.

children(ast)

@spec children(struct()) :: [struct()]

The child AST nodes of ast.

convert_style_property(arg1, key, value)

@spec convert_style_property([atom()], term(), term()) :: {term(), term()}

Converts a single CSS property, walking style_chain in order.

describe(nodes)

@spec describe(struct() | [struct()]) :: binary()

A compact textual rendering of the tree, mirroring #inspect in the Ruby gem. Useful in tests and when debugging a conversion.

grep(nodes, pattern)

@spec grep(struct() | [struct()], module() | (struct() -> boolean())) :: [struct()]

Collects every node in the tree for which pattern matches.

process_properties(style_chain, properties)

@spec process_properties([atom()], Sablon.Props.t()) :: Sablon.Props.t()

Maps CSS properties onto their WordML equivalents.

style_chain names the converter tables to search, from the most specific AST node to :node; keys that are already atoms are WordML properties and are passed through untouched.

put_children(ast, children)

@spec put_children(
  struct(),
  [struct()]
) :: struct()

Replaces the child AST nodes of ast.

to_docx(nodes)

@spec to_docx(struct() | [struct()]) :: binary()

Serialises an AST node to WordML.