Merge pull request #491 from mb21/patch-1

Added link, code and info elements to DocBook Reader

3 files changed, 617 insertions, 0 deletions

diff --git a/src/Text/Pandoc.hs b/src/Text/Pandoc.hs
index 597d2e07f..417362f02 100644
--- a/src/Text/Pandoc.hs
+++ b/src/Text/Pandoc.hs
@@ -119,6 +119,7 @@ import Text.Pandoc.Definition
 import Text.Pandoc.Generic
 import Text.Pandoc.Readers.Markdown
 import Text.Pandoc.Readers.RST
+import Text.Pandoc.Readers.DocBook
 import Text.Pandoc.Readers.LaTeX
 import Text.Pandoc.Readers.HTML
 import Text.Pandoc.Readers.Textile
@@ -162,6 +163,7 @@ readers = [("native"       , \_ -> readNative)
           ,("rst"          , readRST)
           ,("rst+lhs"      , \st ->
                              readRST st{ stateLiterateHaskell = True})
+          ,("docbook"      , readDocBook)
           ,("textile"      , readTextile) -- TODO : textile+lhs 
           ,("html"         , readHtml)
           ,("latex"        , readLaTeX)
diff --git a/src/Text/Pandoc/Readers/DocBook.hs b/src/Text/Pandoc/Readers/DocBook.hs
new file mode 100644
index 000000000..8fe9797a8
--- /dev/null
+++ b/src/Text/Pandoc/Readers/DocBook.hs
@@ -0,0 +1,614 @@
+module Text.Pandoc.Readers.DocBook ( readDocBook ) where
+import Text.Pandoc.Parsing (ParserState(..))
+import Text.Pandoc.Definition
+import Text.Pandoc.Builder
+import Text.XML.Light
+import Data.Maybe (fromMaybe)
+import Data.Monoid
+import Data.Char (isSpace)
+import Control.Monad.State
+import Control.Applicative ((<$>))
+
+{-
+
+List of all DocBook tags, with [x] indicating implemented:
+
+[ ] abbrev - An abbreviation, especially one followed by a period
+[x] abstract - A summary
+[ ] accel - A graphical user interface (GUI) keyboard shortcut
+[ ] ackno - Acknowledgements in an Article
+[ ] acronym - An often pronounceable word made from the initial
+[ ] action - A response to a user event
+[ ] address - A real-world address, generally a postal address
+[ ] affiliation - The institutional affiliation of an individual
+[ ] alt - Text representation for a graphical element
+[ ] anchor - A spot in the document
+[ ] answer - An answer to a question posed in a QandASet
+[ ] appendix - An appendix in a Book or Article
+[ ] appendixinfo - Meta-information for an Appendix
+[ ] application - The name of a software program
+[ ] area - A region defined for a Callout in a graphic or code example
+[ ] areaset - A set of related areas in a graphic or code example
+[ ] areaspec - A collection of regions in a graphic or code example
+[ ] arg - An argument in a CmdSynopsis
+[ ] article - An article
+[x] articleinfo - Meta-information for an Article
+[ ] artpagenums - The page numbers of an article as published
+[ ] attribution - The source of a block quote or epigraph
+[ ] audiodata - Pointer to external audio data
+[ ] audioobject - A wrapper for audio data and its associated meta-information
+[x] author - The name of an individual author
+[ ] authorblurb - A short description or note about an author
+[ ] authorgroup - Wrapper for author information when a document has
+    multiple authors or collabarators
+[ ] authorinitials - The initials or other short identifier for an author
+[ ] beginpage - The location of a page break in a print version of the document
+[ ] bibliocoverage - The spatial or temporal coverage of a document
+[ ] bibliodiv - A section of a Bibliography
+[ ] biblioentry - An entry in a Bibliography
+[ ] bibliography - A bibliography
+[ ] bibliographyinfo - Meta-information for a Bibliography
+[ ] biblioid - An identifier for a document
+[ ] bibliolist - A wrapper for a set of bibliography entries
+[ ] bibliomisc - Untyped bibliographic information
+[ ] bibliomixed - An entry in a Bibliography
+[ ] bibliomset - A cooked container for related bibliographic information
+[ ] biblioref - A cross reference to a bibliographic entry
+[ ] bibliorelation - The relationship of a document to another
+[ ] biblioset - A raw container for related bibliographic information
+[ ] bibliosource - The source of a document
+[ ] blockinfo - Meta-information for a block element
+[x] blockquote - A quotation set off from the main text
+[ ] book - A book
+[ ] bookinfo - Meta-information for a Book
+[ ] bridgehead - A free-floating heading
+[ ] callout - A “called out” description of a marked Area
+[ ] calloutlist - A list of Callouts
+[ ] caption - A caption
+[ ] caution - A note of caution
+[ ] chapter - A chapter, as of a book
+[ ] chapterinfo - Meta-information for a Chapter
+[ ] citation - An inline bibliographic reference to another published work
+[ ] citebiblioid - A citation of a bibliographic identifier
+[ ] citerefentry - A citation to a reference page
+[ ] citetitle - The title of a cited work
+[ ] city - The name of a city in an address
+[ ] classname - The name of a class, in the object-oriented programming sense
+[ ] classsynopsis - The syntax summary for a class definition
+[ ] classsynopsisinfo - Information supplementing the contents of
+    a ClassSynopsis
+[ ] cmdsynopsis - A syntax summary for a software command
+[ ] co - The location of a callout embedded in text
+[x] code - An inline code fragment
+[ ] col - Specifications for a column in an HTML table
+[ ] colgroup - A group of columns in an HTML table
+[ ] collab - Identifies a collaborator
+[ ] collabname - The name of a collaborator
+[ ] colophon - Text at the back of a book describing facts about its production
+[ ] colspec - Specifications for a column in a table
+[ ] command - The name of an executable program or other software command
+[ ] computeroutput - Data, generally text, displayed or presented by a computer
+[ ] confdates - The dates of a conference for which a document was written
+[ ] confgroup - A wrapper for document meta-information about a conference
+[ ] confnum - An identifier, frequently numerical, associated with a conference for which a document was written
+[ ] confsponsor - The sponsor of a conference for which a document was written
+[ ] conftitle - The title of a conference for which a document was written
+[x] constant - A programming or system constant
+[ ] constraint - A constraint in an EBNF production
+[ ] constraintdef - The definition of a constraint in an EBNF production
+[ ] constructorsynopsis - A syntax summary for a constructor
+[ ] contractnum - The contract number of a document
+[ ] contractsponsor - The sponsor of a contract
+[ ] contrib - A summary of the contributions made to a document by a
+    credited source
+[ ] copyright - Copyright information about a document
+[ ] coref - A cross reference to a co
+[ ] corpauthor - A corporate author, as opposed to an individual
+[ ] corpcredit - A corporation or organization credited in a document
+[ ] corpname - The name of a corporation
+[ ] country - The name of a country
+[ ] database - The name of a database, or part of a database
+[x] date - The date of publication or revision of a document
+[ ] dedication - A wrapper for the dedication section of a book
+[ ] destructorsynopsis - A syntax summary for a destructor
+[ ] edition - The name or number of an edition of a document
+[ ] editor - The name of the editor of a document
+[ ] email - An email address
+[x] emphasis - Emphasized text
+[ ] entry - A cell in a table
+[ ] entrytbl - A subtable appearing in place of an Entry in a table
+[ ] envar - A software environment variable
+[ ] epigraph - A short inscription at the beginning of a document or component
+[ ] equation - A displayed mathematical equation
+[ ] errorcode - An error code
+[ ] errorname - An error name
+[ ] errortext - An error message.
+[ ] errortype - The classification of an error message
+[ ] example - A formal example, with a title
+[ ] exceptionname - The name of an exception
+[ ] fax - A fax number
+[ ] fieldsynopsis - The name of a field in a class definition
+[ ] figure - A formal figure, generally an illustration, with a title
+[ ] filename - The name of a file
+[ ] firstname - The first name of a person
+[ ] firstterm - The first occurrence of a term
+[ ] footnote - A footnote
+[ ] footnoteref - A cross reference to a footnote (a footnote mark)
+[ ] foreignphrase - A word or phrase in a language other than the primary
+    language of the document
+[ ] formalpara - A paragraph with a title
+[ ] funcdef - A function (subroutine) name and its return type
+[ ] funcparams - Parameters for a function referenced through a function
+    pointer in a synopsis
+[ ] funcprototype - The prototype of a function
+[ ] funcsynopsis - The syntax summary for a function definition
+[ ] funcsynopsisinfo - Information supplementing the FuncDefs of a FuncSynopsis
+[x] function - The name of a function or subroutine, as in a
+    programming language
+[ ] glossary - A glossary
+[ ] glossaryinfo - Meta-information for a Glossary
+[ ] glossdef - A definition in a GlossEntry
+[ ] glossdiv - A division in a Glossary
+[ ] glossentry - An entry in a Glossary or GlossList
+[ ] glosslist - A wrapper for a set of GlossEntrys
+[ ] glosssee - A cross-reference from one GlossEntry to another
+[ ] glossseealso - A cross-reference from one GlossEntry to another
+[ ] glossterm - A glossary term
+[ ] graphic - A displayed graphical object (not an inline)
+[ ] graphicco - A graphic that contains callout areas
+[ ] group - A group of elements in a CmdSynopsis
+[ ] guibutton - The text on a button in a GUI
+[ ] guiicon - Graphic and/or text appearing as a icon in a GUI
+[ ] guilabel - The text of a label in a GUI
+[ ] guimenu - The name of a menu in a GUI
+[ ] guimenuitem - The name of a terminal menu item in a GUI
+[ ] guisubmenu - The name of a submenu in a GUI
+[ ] hardware - A physical part of a computer system
+[ ] highlights - A summary of the main points of the discussed component
+[ ] holder - The name of the individual or organization that holds a copyright
+[ ] honorific - The title of a person
+[ ] html:form - An HTML form
+[ ] imagedata - Pointer to external image data
+[ ] imageobject - A wrapper for image data and its associated meta-information
+[ ] imageobjectco - A wrapper for an image object with callouts
+[ ] important - An admonition set off from the text
+[ ] index - An index
+[ ] indexdiv - A division in an index
+[ ] indexentry - An entry in an index
+[ ] indexinfo - Meta-information for an Index
+[ ] indexterm - A wrapper for terms to be indexed
+[ ] info - A wrapper for information about a component or other block. (DocBook v5)
+[ ] informalequation - A displayed mathematical equation without a title
+[ ] informalexample - A displayed example without a title
+[ ] informalfigure - A untitled figure
+[ ] informaltable - A table without a title
+[ ] initializer - The initializer for a FieldSynopsis
+[ ] inlineequation - A mathematical equation or expression occurring inline
+[ ] inlinegraphic - An object containing or pointing to graphical data
+    that will be rendered inline
+[ ] inlinemediaobject - An inline media object (video, audio, image, and so on)
+[ ] interface - An element of a GUI
+[ ] interfacename - The name of an interface
+[ ] invpartnumber - An inventory part number
+[ ] isbn - The International Standard Book Number of a document
+[ ] issn - The International Standard Serial Number of a periodical
+[ ] issuenum - The number of an issue of a journal
+[x] itemizedlist - A list in which each entry is marked with a bullet or
+    other dingbat
+[ ] itermset - A set of index terms in the meta-information of a document
+[ ] jobtitle - The title of an individual in an organization
+[ ] keycap - The text printed on a key on a keyboard
+[ ] keycode - The internal, frequently numeric, identifier for a key
+    on a keyboard
+[ ] keycombo - A combination of input actions
+[ ] keysym - The symbolic name of a key on a keyboard
+[ ] keyword - One of a set of keywords describing the content of a document
+[ ] keywordset - A set of keywords describing the content of a document
+[ ] label - A label on a Question or Answer
+[ ] legalnotice - A statement of legal obligations or requirements
+[ ] lhs - The left-hand side of an EBNF production
+[ ] lineage - The portion of a person's name indicating a relationship to
+    ancestors
+[ ] lineannotation - A comment on a line in a verbatim listing
+[x] link - A hypertext link
+[ ] listitem - A wrapper for the elements of a list item
+[x] literal - Inline text that is some literal value
+[ ] literallayout - A block of text in which line breaks and white space are
+    to be reproduced faithfully
+[ ] lot - A list of the titles of formal objects (as tables or figures) in
+    a document
+[ ] lotentry - An entry in a list of titles
+[ ] manvolnum - A reference volume number
+[ ] markup - A string of formatting markup in text that is to be
+    represented literally
+[ ] mathphrase - A mathematical phrase, an expression that can be represented
+    with ordinary text and a small amount of markup
+[ ] medialabel - A name that identifies the physical medium on which some
+    information resides
+[ ] mediaobject - A displayed media object (video, audio, image, etc.)
+[ ] mediaobjectco - A media object that contains callouts
+[ ] member - An element of a simple list
+[ ] menuchoice - A selection or series of selections from a menu
+[ ] methodname - The name of a method
+[ ] methodparam - Parameters to a method
+[ ] methodsynopsis - A syntax summary for a method
+[ ] mml:math - A MathML equation
+[ ] modespec - Application-specific information necessary for the
+    completion of an OLink
+[ ] modifier - Modifiers in a synopsis
+[ ] mousebutton - The conventional name of a mouse button
+[ ] msg - A message in a message set
+[ ] msgaud - The audience to which a message in a message set is relevant
+[ ] msgentry - A wrapper for an entry in a message set
+[ ] msgexplan - Explanatory material relating to a message in a message set
+[ ] msginfo - Information about a message in a message set
+[ ] msglevel - The level of importance or severity of a message in a message set
+[ ] msgmain - The primary component of a message in a message set
+[ ] msgorig - The origin of a message in a message set
+[ ] msgrel - A related component of a message in a message set
+[ ] msgset - A detailed set of messages, usually error messages
+[ ] msgsub - A subcomponent of a message in a message set
+[ ] msgtext - The actual text of a message component in a message set
+[ ] nonterminal - A non-terminal in an EBNF production
+[ ] note - A message set off from the text
+[ ] objectinfo - Meta-information for an object
+[ ] olink - A link that addresses its target indirectly, through an entity
+[ ] ooclass - A class in an object-oriented programming language
+[ ] ooexception - An exception in an object-oriented programming language
+[ ] oointerface - An interface in an object-oriented programming language
+[ ] option - An option for a software command
+[ ] optional - Optional information
+[x] orderedlist - A list in which each entry is marked with a sequentially
+    incremented label
+[ ] orgdiv - A division of an organization
+[ ] orgname - The name of an organization other than a corporation
+[ ] otheraddr - Uncategorized information in address
+[ ] othercredit - A person or entity, other than an author or editor,
+    credited in a document
+[ ] othername - A component of a persons name that is not a first name,
+    surname, or lineage
+[ ] package - A package
+[ ] pagenums - The numbers of the pages in a book, for use in a bibliographic
+    entry
+[x] para - A paragraph
+[ ] paramdef - Information about a function parameter in a programming language
+[ ] parameter - A value or a symbolic reference to a value
+[ ] part - A division in a book
+[ ] partinfo - Meta-information for a Part
+[ ] partintro - An introduction to the contents of a part
+[ ] personblurb - A short description or note about a person
+[ ] personname - The personal name of an individual
+[ ] phone - A telephone number
+[ ] phrase - A span of text
+[ ] pob - A post office box in an address
+[ ] postcode - A postal code in an address
+[ ] preface - Introductory matter preceding the first chapter of a book
+[ ] prefaceinfo - Meta-information for a Preface
+[ ] primary - The primary word or phrase under which an index term should be
+    sorted
+[ ] primaryie - A primary term in an index entry, not in the text
+[ ] printhistory - The printing history of a document
+[ ] procedure - A list of operations to be performed in a well-defined sequence
+[ ] production - A production in a set of EBNF productions
+[ ] productionrecap - A cross-reference to an EBNF production
+[ ] productionset - A set of EBNF productions
+[ ] productname - The formal name of a product
+[ ] productnumber - A number assigned to a product
+[ ] programlisting - A literal listing of all or part of a program
+[ ] programlistingco - A program listing with associated areas used in callouts
+[ ] prompt - A character or string indicating the start of an input field in
+    a computer display
+[ ] property - A unit of data associated with some part of a computer system
+[ ] pubdate - The date of publication of a document
+[ ] publisher - The publisher of a document
+[ ] publishername - The name of the publisher of a document
+[ ] pubsnumber - A number assigned to a publication other than an ISBN or ISSN
+    or inventory part number
+[ ] qandadiv - A titled division in a QandASet
+[ ] qandaentry - A question/answer set within a QandASet
+[ ] qandaset - A question-and-answer set
+[ ] question - A question in a QandASet
+[ ] quote - An inline quotation
+[ ] refclass - The scope or other indication of applicability of a
+    reference entry
+[ ] refdescriptor - A description of the topic of a reference page
+[ ] refentry - A reference page (originally a UNIX man-style reference page)
+[ ] refentryinfo - Meta-information for a Refentry
+[ ] refentrytitle - The title of a reference page
+[ ] reference - A collection of reference entries
+[ ] referenceinfo - Meta-information for a Reference
+[ ] refmeta - Meta-information for a reference entry
+[ ] refmiscinfo - Meta-information for a reference entry other than the title
+    and volume number
+[ ] refname - The name of (one of) the subject(s) of a reference page
+[ ] refnamediv - The name, purpose, and classification of a reference page
+[ ] refpurpose - A short (one sentence) synopsis of the topic of a reference
+    page
+[ ] refsect1 - A major subsection of a reference entry
+[ ] refsect1info - Meta-information for a RefSect1
+[ ] refsect2 - A subsection of a RefSect1
+[ ] refsect2info - Meta-information for a RefSect2
+[ ] refsect3 - A subsection of a RefSect2
+[ ] refsect3info - Meta-information for a RefSect3
+[ ] refsection - A recursive section in a refentry
+[ ] refsectioninfo - Meta-information for a refsection
+[ ] refsynopsisdiv - A syntactic synopsis of the subject of the reference page
+[ ] refsynopsisdivinfo - Meta-information for a RefSynopsisDiv
+[ ] releaseinfo - Information about a particular release of a document
+[ ] remark - A remark (or comment) intended for presentation in a draft
+    manuscript
+[ ] replaceable - Content that may or must be replaced by the user
+[ ] returnvalue - The value returned by a function
+[ ] revdescription - A extended description of a revision to a document
+[ ] revhistory - A history of the revisions to a document
+[ ] revision - An entry describing a single revision in the history of the
+    revisions to a document
+[ ] revnumber - A document revision number
+[ ] revremark - A description of a revision to a document
+[ ] rhs - The right-hand side of an EBNF production
+[ ] row - A row in a table
+[ ] sbr - An explicit line break in a command synopsis
+[ ] screen - Text that a user sees or might see on a computer screen
+[ ] screenco - A screen with associated areas used in callouts
+[ ] screeninfo - Information about how a screen shot was produced
+[ ] screenshot - A representation of what the user sees or might see on a
+    computer screen
+[ ] secondary - A secondary word or phrase in an index term
+[ ] secondaryie - A secondary term in an index entry, rather than in the text
+[x] sect1 - A top-level section of document
+[ ] sect1info - Meta-information for a Sect1
+[x] sect2 - A subsection within a Sect1
+[ ] sect2info - Meta-information for a Sect2
+[x] sect3 - A subsection within a Sect2
+[ ] sect3info - Meta-information for a Sect3
+[x] sect4 - A subsection within a Sect3
+[ ] sect4info - Meta-information for a Sect4
+[x] sect5 - A subsection within a Sect4
+[ ] sect5info - Meta-information for a Sect5
+[x] section - A recursive section
+[ ] sectioninfo - Meta-information for a recursive section
+[ ] see - Part of an index term directing the reader instead to another entry
+    in the index
+[ ] seealso - Part of an index term directing the reader also to another entry
+    in the index
+[ ] seealsoie - A See also entry in an index, rather than in the text
+[ ] seeie - A See entry in an index, rather than in the text
+[ ] seg - An element of a list item in a segmented list
+[ ] seglistitem - A list item in a segmented list
+[ ] segmentedlist - A segmented list, a list of sets of elements
+[ ] segtitle - The title of an element of a list item in a segmented list
+[ ] seriesvolnums - Numbers of the volumes in a series of books
+[ ] set - A collection of books
+[ ] setindex - An index to a set of books
+[ ] setindexinfo - Meta-information for a SetIndex
+[ ] setinfo - Meta-information for a Set
+[ ] sgmltag - A component of SGML markup
+[ ] shortaffil - A brief description of an affiliation
+[ ] shortcut - A key combination for an action that is also accessible through
+    a menu
+[ ] sidebar - A portion of a document that is isolated from the main
+    narrative flow
+[ ] sidebarinfo - Meta-information for a Sidebar
+[ ] simpara - A paragraph that contains only text and inline markup, no block
+    elements
+[ ] simplelist - An undecorated list of single words or short phrases
+[ ] simplemsgentry - A wrapper for a simpler entry in a message set
+[ ] simplesect - A section of a document with no subdivisions
+[ ] spanspec - Formatting information for a spanned column in a table
+[ ] state - A state or province in an address
+[ ] step - A unit of action in a procedure
+[ ] stepalternatives - Alternative steps in a procedure
+[ ] street - A street address in an address
+[ ] structfield - A field in a structure (in the programming language sense)
+[ ] structname - The name of a structure (in the programming language sense)
+[ ] subject - One of a group of terms describing the subject matter of a
+    document
+[ ] subjectset - A set of terms describing the subject matter of a document
+[ ] subjectterm - A term in a group of terms describing the subject matter of
+    a document
+[x] subscript - A subscript (as in H2O, the molecular formula for water)
+[ ] substeps - A wrapper for steps that occur within steps in a procedure
+[ ] subtitle - The subtitle of a document
+[x] superscript - A superscript (as in x2, the mathematical notation for x
+    multiplied by itself)
+[ ] surname - A family name; in western cultures the last name
+[ ] svg:svg - An SVG graphic
+[x] symbol - A name that is replaced by a value before processing
+[ ] synopfragment - A portion of a CmdSynopsis broken out from the main body
+    of the synopsis
+[ ] synopfragmentref - A reference to a fragment of a command synopsis
+[ ] synopsis - A general-purpose element for representing the syntax of
+    commands or functions
+[ ] systemitem - A system-related item or term
+[ ] table - A formal table in a document
+[ ] task - A task to be completed
+[ ] taskprerequisites - The prerequisites for a task
+[ ] taskrelated - Information related to a task
+[ ] tasksummary - A summary of a task
+[ ] tbody - A wrapper for the rows of a table or informal table
+[ ] td - A table entry in an HTML table
+[ ] term - The word or phrase being defined or described in a variable list
+[ ] termdef - An inline term definition
+[ ] tertiary - A tertiary word or phrase in an index term
+[ ] tertiaryie - A tertiary term in an index entry, rather than in the text
+[ ] textdata - Pointer to external text data
+[ ] textobject - A wrapper for a text description of an object and its
+    associated meta-information
+[ ] tfoot - A table footer consisting of one or more rows
+[ ] tgroup - A wrapper for the main content of a table, or part of a table
+[ ] th - A table header entry in an HTML table
+[ ] thead - A table header consisting of one or more rows
+[ ] tip - A suggestion to the user, set off from the text
+[x] title - The text of the title of a section of a document or of a formal
+    block-level element
+[ ] titleabbrev - The abbreviation of a Title
+[ ] toc - A table of contents
+[ ] tocback - An entry in a table of contents for a back matter component
+[ ] tocchap - An entry in a table of contents for a component in the body of
+    a document
+[ ] tocentry - A component title in a table of contents
+[ ] tocfront - An entry in a table of contents for a front matter component
+[ ] toclevel1 - A top-level entry within a table of contents entry for a
+    chapter-like component
+[ ] toclevel2 - A second-level entry within a table of contents entry for a 
+    chapter-like component
+[ ] toclevel3 - A third-level entry within a table of contents entry for a 
+    chapter-like component
+[ ] toclevel4 - A fourth-level entry within a table of contents entry for a 
+    chapter-like component
+[ ] toclevel5 - A fifth-level entry within a table of contents entry for a 
+    chapter-like component
+[ ] tocpart - An entry in a table of contents for a part of a book
+[ ] token - A unit of information
+[ ] tr - A row in an HTML table
+[ ] trademark - A trademark
+[ ] type - The classification of a value
+[x] ulink - A link that addresses its target by means of a URL
+    (Uniform Resource Locator)
+[ ] uri - A Uniform Resource Identifier
+[ ] userinput - Data entered by the user
+[x] varargs - An empty element in a function synopsis indicating a variable
+    number of arguments
+[ ] variablelist - A list in which each entry is composed of a set of one or
+    more terms and an associated description
+[ ] varlistentry - A wrapper for a set of terms and the associated description
+    in a variable list
+[x] varname - The name of a variable
+[ ] videodata - Pointer to external video data
+[ ] videoobject - A wrapper for video data and its associated meta-information
+[ ] void - An empty element in a function synopsis indicating that the
+    function in question takes no arguments
+[ ] volumenum - The volume number of a document in a set (as of books in a set
+    or articles in a journal)
+[ ] warning - An admonition set off from the text
+[ ] wordasword - A word meant specifically as a word and not representing
+    anything else
+[ ] xref - A cross reference to another part of the document
+[ ] year - The year of publication of a document
+
+-}
+
+type DB = State DBState
+
+data DBState = DBState{ dbSectionLevel :: Int
+                      , dbQuoteType    :: QuoteType
+                      , dbDocTitle     :: Inlines
+                      , dbDocAuthors   :: [Inlines]
+                      , dbDocDate      :: Inlines
+                      } deriving Show
+
+readDocBook :: ParserState -> String -> Pandoc
+readDocBook st inp = setTitle (dbDocTitle st')
+                   $ setAuthors (dbDocAuthors st')
+                   $ setDate (dbDocDate st')
+                   $ doc $ mconcat bs
+  where (bs, st') = runState (mapM parseBlock $ parseXML inp)
+                             DBState{ dbSectionLevel = 0
+                                    , dbQuoteType = DoubleQuote
+                                    , dbDocTitle = mempty
+                                    , dbDocAuthors = []
+                                    , dbDocDate = mempty
+                                    }
+
+parseBlock :: Content -> DB Blocks
+parseBlock (Text (CData CDataRaw _ _)) = return mempty -- DOCTYPE
+parseBlock (Text (CData _ s _)) = if all isSpace s
+                                     then return mempty
+                                     else return $ plain $ text s
+parseBlock (Elem e) =
+  case qName (elName e) of
+        "para"  -> para <$> getInlines e
+        "blockquote" -> blockQuote <$> getBlocks e
+        "sect1" -> sect 1
+        "sect2" -> sect 2
+        "sect3" -> sect 3
+        "sect4" -> sect 4
+        "sect5" -> sect 5
+        "section" -> gets dbSectionLevel >>= sect . (+1)
+        "abstract" -> blockQuote <$> getBlocks e
+        "itemizedlist" -> bulletList <$> listitems
+        "orderedlist" -> orderedList <$> listitems -- TODO list attributes
+        "info" -> getTitle >> getAuthors >> getDate >> return mempty
+        "articleinfo" -> getTitle >> getAuthors >> getDate >> return mempty
+        "programlisting" -> return $ codeBlock $ strContent e  -- TODO attrs
+        "?xml"  -> return mempty
+        _       -> getBlocks e
+   where getBlocks e' =  mconcat <$> (mapM parseBlock $ elContent e')
+         getInlines e' = (trimInlines . mconcat) <$>
+                       (mapM parseInline $ elContent e')
+         isTitle e' = qName (elName e') == "title"
+         skipWhite (Text (CData _ s _):xs) | all isSpace s = skipWhite xs
+                                           | otherwise     = xs
+         skipWhite xs = xs
+         listitems = mapM getBlocks $ findChildren (unqual "listitem") e
+         getTitle = case findChild (unqual "title") e of
+                         Just t  -> do
+                            tit <- getInlines t
+                            modify $ \st -> st{dbDocTitle = tit}
+                         Nothing -> return ()
+         getAuthors = do
+                      auths <- mapM getInlines
+                               $ findChildren (unqual "author") e
+                      modify $ \st -> st{dbDocAuthors = auths}
+         getDate = case findChild (unqual "date") e of
+                         Just t  -> do
+                            dat <- getInlines t
+                            modify $ \st -> st{dbDocDate = dat}
+                         Nothing -> return ()
+         sect n = case skipWhite (elContent e) of
+                        ((Elem t):body)
+                          | isTitle t -> do
+                                  h <- header n <$> (getInlines t)
+                                  modify $ \st -> st{ dbSectionLevel = n }
+                                  b <- mconcat <$> (mapM parseBlock body)
+                                  modify $ \st -> st{ dbSectionLevel = n - 1 }
+                                  return $ h <> b
+                        body      -> do
+                                  let h = header n mempty
+                                  modify $ \st -> st{ dbSectionLevel = n }
+                                  b <- mconcat <$> (mapM parseBlock body)
+                                  modify $ \st -> st{ dbSectionLevel = n - 1 }
+                                  return $ h <> b
+parseBlock (CRef _) = return mempty
+
+parseInline :: Content -> DB Inlines
+parseInline (Text (CData _ s _)) = return $ text s
+parseInline (Elem e) =
+  case qName (elName e) of
+        "subscript" -> subscript <$> innerInlines
+        "superscript" -> superscript <$> innerInlines
+        "quote" -> do
+            qt <- gets dbQuoteType
+            let qt' = if qt == SingleQuote then DoubleQuote else SingleQuote
+            modify $ \st -> st{ dbQuoteType = qt' }
+            contents <- innerInlines
+            modify $ \st -> st{ dbQuoteType = qt }
+            return $ if qt == SingleQuote
+                        then singleQuoted contents
+                        else doubleQuoted contents
+        "code" -> return $ code $ strContent e -- TODO attrs
+        "literal" -> return $ code $ strContent e -- TODO attrs
+        "varname" -> return $ codeWith ("",["varname"],[]) $ strContent e
+        "function" -> return $ codeWith ("",["function"],[]) $ strContent e
+        "type"    -> return $ codeWith ("",["type"],[]) $ strContent e
+        "symbol"  -> return $ codeWith ("",["symbol"],[]) $ strContent e
+        "constant" -> return $ codeWith ("",["constant"],[]) $ strContent e
+        "userinput" -> return $ codeWith ("",["userinput"],[]) $ strContent e
+        "varargs" -> return $ str "(…)"
+        "ulink" -> link
+            (fromMaybe "" (lookupAttrBy (\attr -> qName attr == "url")
+              (elAttribs e))) "" <$> innerInlines
+        "link" -> case findAttr (QName "href" Nothing $ Just "xlink") e of
+            			Just href -> link href "" <$> innerInlines
+        				_         -> link ("#"++(fromMaybe "" (lookupAttrBy
+        								(\attr -> qName attr == "linkend")
+						              	(elAttribs e)))) "" <$> innerInlines
+        "emphasis" -> case lookupAttrBy (\attr -> qName attr == "role")
+                           (elAttribs e) of
+                             Just "strong" -> strong <$> innerInlines
+                             _             -> emph <$> innerInlines
+        "footnote" -> (note . mconcat) <$> (mapM parseBlock $ elContent e)
+        _          -> innerInlines
+   where innerInlines = (trimInlines . mconcat) <$>
+                          (mapM parseInline $ elContent e)
+parseInline (CRef _) = return mempty
diff --git a/src/pandoc.hs b/src/pandoc.hs
index dab7b4161..a8a70a1b4 100644
--- a/src/pandoc.hs
+++ b/src/pandoc.hs
@@ -689,6 +689,7 @@ defaultReaderName fallback (x:xs) =
     ".ltx"      -> "latex"
     ".rst"      -> "rst"
     ".lhs"      -> "markdown+lhs"
+    ".db"       -> "docbook"
     ".textile"  -> "textile"
     ".native"   -> "native"
     ".json"     -> "json"