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man pages section 3: Extended Library Functions, Volume 1

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Updated: Wednesday, July 27, 2022
 
 

edoc_extract (3erl)

Name

edoc_extract - EDoc documentation extraction.

Synopsis

Please see following description for synopsis

Description

edoc_extract(3)            Erlang Module Definition            edoc_extract(3)



NAME
       edoc_extract - EDoc documentation extraction.

DESCRIPTION
       EDoc documentation extraction.

DATA TYPES
         context() = module | footer | function | overview | single:


         filename() = file:filename():


         proplist() = proplists:proplist():


EXPORTS
       file(File, Context, Env, Opts) -> {ok, Tags} | {error, Reason}

              Types:

                 File = filename()
                 Context = context()
                 Env = edoc:env()
                 Opts = proplist()
                 Tags = [term()]
                 Reason = term()

              Reads  a text file and returns the list of tags in the file. Any
              lines of text before the first tag are ignored. Env is an  envi-
              ronment created by edoc_lib:get_doc_env/3. Upon error, Reason is
              an atom returned from the call to file:read_file/1 or  the  atom
              'invalid_unicode'.

              See text/4 for options.

       header(File, Env, Opts) -> edoc:entry_data()

              Types:

                 File = filename()
                 Env = edoc:env()
                 Opts = proplist()

              Similar  to header/5, but reads the syntax tree and the comments
              from the specified file.

              See also: header/4, edoc:read_comments/2, edoc:read_source/2.

       header(Forms, File, Env, Opts) -> edoc:entry_data()

              Types:

                 Forms = erl_syntax:forms()
                 File = filename()
                 Env = edoc:env()
                 Opts = proplist()

              Extracts EDoc documentation from commented  header  file  syntax
              trees.  Similar  to source/5, but ignores any documentation that
              occurs before a module declaration  or  a  function  definition.
              (Warning messages are printed if content may be ignored.) Env is
              assumed to already be set up with a suitable module context.

              See also: erl_recomment(3), header/5.

       header(Forms, Comments, File, Env, Opts) -> edoc:entry_data()

              Types:

                 Forms = erl_syntax:forms()
                 Comments = [edoc:comment()]
                 File = filename()
                 Env = edoc:env()
                 Opts = proplist()

              Similar to header/4, but first inserts the given comments in the
              syntax  trees.  The  syntax  trees  must  contain valid position
              information. (Cf. edoc:read_comments/2.)

              See also: erl_recomment(3), header/3, header/4.

       source(File, Env, Opts) -> R

              Types:

                 File = filename()
                 Env = edoc:env()
                 Opts = proplist()
                 R   =    {module(),    edoc:edoc_module()}    |    {module(),
                 edoc:edoc_module(), [edoc:entry()]}

              Like  source/5,  but reads the syntax tree and the comments from
              the specified file.

              See also: source/4, edoc:read_comments/2, edoc:read_source/2.

       source(Forms, File, Env, Opts) -> R

              Types:

                 Forms = erl_syntax:forms()
                 File = filename()
                 Env = edoc:env()
                 Opts = proplist()
                 R   =    {module(),    edoc:edoc_module()}    |    {module(),
                 edoc:edoc_module(), [edoc:entry()]}

              Extracts  EDoc  documentation  from commented source code syntax
              trees. The given Forms must be a  single  syntax  tree  of  type
              form_list,  or  a  list  of  syntax  trees representing "program
              forms" (cf. edoc:read_source/2. Env is an environment created by
              edoc_lib:get_doc_env/3.  The  File  argument  is  used for error
              reporting and output file name generation only.

              See edoc:get_doc/2 for descriptions of the def, hidden, private,
              and todo options.

              See   also:  erl_recomment(3),  source/5,  edoc:read_comments/2,
              edoc:read_source/2.

       source(Forms, Comments, File, Env, Opts) -> R

              Types:

                 Forms = erl_syntax:forms()
                 Comments = [edoc:comment()]
                 File = filename()
                 Env = edoc:env()
                 Opts = proplist()
                 R   =    {module(),    edoc:edoc_module()}    |    {module(),
                 edoc:edoc_module(), [edoc:entry()]}

              Like  source/4, but first inserts the given comments in the syn-
              tax trees. The syntax trees must contain valid position informa-
              tion. (Cf. edoc:read_comments/2.)

              See  also:  erl_recomment(3), source/3, source/4, edoc:read_com-
              ments/2, edoc:read_source/2.

       text(Text, Context, Env, Opts) -> Tags

              Types:

                 Text = string()
                 Context = context()
                 Env = edoc:env()
                 Opts = proplist()
                 Tags = [term()]

              Returns the list of tags in the text. Any lines of  text  before
              the  first  tag  are  ignored.  Env is an environment created by
              edoc_lib:get_doc_env/3.

              See source/4 for a description of the def option.

SEE ALSO
       edoc

AUTHORS
       Richard Carlsson <carlsson.richard@gmail.com>



                                   edoc 1.1                    edoc_extract(3)