# docb_transform

### MODULE

docb_transform

### MODULE SUMMARY

Transform XML to HTML

### DESCRIPTION

docb_transform contains functions for transforming XML documentation source code to HTML.

### EXPORTS

file(File) -> ok | {error, Reason}
file(File, Options) -> ok | {error, Reason}

Types:

File = string()
Options = [Opt]
Opt -- see below

Transforms XML documentation source code to HTML.

File is a documentation source file, given with or without the .xml extension as Name.xml or Name.

If File contains XML code according to a basic DTD (chapter, erlref, ...), the resulting HTML file is named Name.html.

If File contains XML code according to a compound DTD (application or part), several files are created:

- A cover page for the application with two frames, Name_frame.html.
- The contents of the left frame and a front page, Name.html and Name_first.html.
- A bibliography and a glossary, Name_cite.html and Name_term.html.
- In the case of an application DTD an index is created, Name.kwc and Name_index.html.
- One HTML file for each file included from File.
- Also, if there exists a fascicules.xml file where the value of the entry attribute for File is "yes", the cover page is copied to index.html.

### Options

{html_mod, Module}, Module=atom()
  A callback module can be used for specifying HTML snippets that should be included in the generated HTML files, see below.
{outdir, Dir}, Dir=string()
  Destination for generated files. Default is current working directory.
{number, Number}, Number=int()
  First chapter number when transforming a chapter file. Default is 1.
{ptype, unix|windows}
  For path elements, the specified file path should be presented.
silent
  Silent - no warnings, only error information is printed.
{top, Index}, Index=string()
  Specifies the value of "Top" in the left frame of a front page, which normally should be some kind of top index file for the documentation.
{vsn, Vsn}, Vsn=string()
  Application version number. Overrides a version number defined in the XML document. Visible in the left frame and on the front page.
{term_defs, File}, File=string()
  Use the global glossary definitions in File, which should contain a list of tuples {Id, Name, Definition, Owner}. See the section <term>, <termdef> - Glossary in the User's Guide.
{cite_defs, File}, File=string()
  Use the global bibliography definitions in File, which should contain a list of tuples {Id, Title, Info, Owner}. See the section <cite>, <citedef> - Bibliography in the User's Guide.

### Callback Module

A html_mod callback module can include the functions specified below. Note that there is no check that the resulting HTML code is valid. All functions are optional.

### EXPORTS

Module:head() -> string()

Defines a HTML snippet to be included in the head of a document, after the <HEAD> start tag and <TITLE> tag:

    <HTML>
    <HEAD>
      <TITLE>...</TITLE>
      - snippet is included here -
      ...
    </HEAD>
    ...
    </HTML>

Module:top() -> string()

Defines a HTML snippet to be included at the top of a document, after the <BODY> start tag.

Module:bottom() -> string()

Defines a HTML snippet to be included at the bottom of a document, before the </BODY> end tag.

Module:seealso(SeeAlso) -> Href

Types:

SeeAlso = Href = string()

When referring to another part of the document, or another document, the XML tag <seealso> is used: <seealso marker="File#Marker">...text...</seealso>. By default, this is translated to <A HREF="File.html#Marker>...text...</A>.

This function makes it possible to specify an alternative translation Href of the marker attribute value SeeAlso. For example, in OTP this is used to resolve cross references between applications.

docbuilder 0.9.8
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