shell_docs.3erl - Man Page
Functions used to render EEP-48 style documentation for a shell.
Description
This module can be used to render function and type documentation to be printed in a shell. This is the module that is used to render the docs accessed through the shell through c:h/1,2,3. Example:
1> h(maps,new,0). -spec new() -> Map when Map :: #{}. Since: OTP 17.0 Returns a new empty map. Example: > maps:new(). #{}
This module formats and renders EEP-48 documentation of the format application/erlang+html. For more information about this format see Documentation Storage in Erl_Docgen's User's Guide. It can also render any other format of "text" type, although those will be rendered as is.
Data Types
docs_v1() = #docs_v1{}
The record holding EEP-48 documentation for a module. You can use code:get_doc/1 to fetch this information from a module.
config() = #{encoding => unicode | latin1, columns => integer() >= 1, ansi => boolean()}
The configuration of how the documentation should be rendered.
- encoding:
Configure the encoding that should be used by the renderer for graphical details such as bullet-points. By default shell_docs uses the value returned by io:getopts().
- ansi:
Configure whether ansi escape codes should be used to render graphical details such as bold and underscore. By default shell_docs will try to determine if the receiving shell supports ansi escape codes. It is possible to override the automated check by setting the kernel configuration parameter shell_docs_ansi to a boolean() value.
- columns:
Configure how wide the target documentation should be rendered. By default shell_docs used the value returned by io:columns().
chunk_element_block_type() = p | 'div' | br | pre | ul | ol | li | dl | dt | dd | h1 | h2 | h3 | h4 | h5 | h6
chunk_element_inline_type() = a | code | em | strong | i | b
chunk_element_type() = chunk_element_inline_type() | chunk_element_block_type()
The HTML tags allowed in application/erlang+html.
chunk_element_attr() = {atom(), unicode:chardata()}
chunk_element_attrs() = [chunk_element_attr()]
chunk_element() = {chunk_element_type(), chunk_element_attrs(), chunk_elements()} | binary()
chunk_elements() = [chunk_element()]
Exports
render(Module, Docs) -> unicode:chardata()
render(Module, Docs, Config) -> unicode:chardata()
render(Module, Function, Docs) -> Res
render(Module, Function, Docs, Config) -> Res
render(Module, Function, Arity, Docs) -> Res
render(Module, Function, Arity, Docs, Config) -> Res
- Types:
Module = module()
Function = atom()
Arity = arity()
Docs = docs_v1()
Config = config()
Res = unicode:chardata() | {error, function_missing}
Render the documentation for a module or function.
render_type(Module, Docs) -> unicode:chardata()
render_type(Module, Docs, Config) -> unicode:chardata()
render_type(Module, Type, Docs) -> Res
render_type(Module, Type, Docs, Config) -> Res
render_type(Module, Type, Arity, Docs) -> Res
render_type(Module, Type, Arity, Docs, Config) -> Res
- Types:
Module = module()
Type = atom()
Arity = arity()
Docs = docs_v1()
Config = config()
Res = unicode:chardata() | {error, type_missing}
Render the documentation of a type in a module.
render_callback(Module, Docs) -> unicode:chardata()
render_callback(Module, Docs, Config) -> unicode:chardata()
render_callback(Module, Callback, Docs) -> Res
render_callback(Module, Callback, Docs, Config) -> Res
render_callback(Module, Callback, Arity, Docs) -> Res
render_callback(Module, Callback, Arity, Docs, Config) -> Res
- Types:
Module = module()
Callback = atom()
Arity = arity()
Docs = docs_v1()
Config = config()
Res = unicode:chardata() | {error, callback_missing}
Render the documentation of a callback in a module.
validate(Module) -> ok
- Types:
Module = module() | docs_v1()
This function can be used to do a basic validation of the doc content of application/erlang+html format.
normalize(Docs) -> NormalizedDocs
- Types:
Docs = NormalizedDocs = chunk_elements()
This function can be used to do whitespace normalization of application/erlang+html documentation.
supported_tags() -> [chunk_element_type()]
This function can be used to find out which tags are supported by application/erlang+html documentation.
Referenced By
edoc_doclet_chunks.3erl(3), edoc_layout_chunks.3erl(3).