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Teach haddock about C and Haskell style line pragmas. Extend the lexer/parser's
source location tracking to include the file name as well as line/column. This
way each AST item that is tagged with a SrcLoc gets the original file name too.
Use this original file name to add source links to each exported item, in the
same visual style as the wiki links. Note that the per-export source links are
to the defining module rather than whichever module haddock pretends it is
exported from. This is what we want for source code links. The source code link
URL can also contain the name of the export so one could implement jumping to
the actual location of the function in the file if it were linked to an html
version of the source rather than just plain text. The name can be selected
with the %N wild card.
So for linking to the raw source code one might use:
--source=http://darcs/haskell.org/foo/%F
Or for linking to html syntax highlighted code:
--source=http://darcs/haskell.org/foo/%M.html#%N
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Add support for a short description for each module, which is included
in the contents.
The short description should be given in a "Description: " field of
the header. Included in this patch are changes that make the format
of the header a little more flexible. From the comments:
-- all fields in the header are optional and have the form
--
-- [spaces1][field name][spaces] ":"
-- [text]"\n" ([spaces2][space][text]"\n" | [spaces]"\n")*
-- where each [spaces2] should have [spaces1] as a prefix.
--
-- Thus for the key "Description",
--
-- > Description : this is a
-- > rather long
-- >
-- > description
-- >
-- > The module comment starts here
--
-- the value will be "this is a .. description" and the rest will begin
-- at "The module comment".
The header fields must be in the following order: Module, Description,
Copyright, License, Maintainer, Stability, Portability.
Patches submitted by: George Russell <ger@informatik.uni-bremen.de>,
with a few small changes be me, mostly to merge with other recent
changes.
ToDo: document the module header.
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Warning police
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Add basic support for Microsoft HTML Help 2.0
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- Add definition lists, marked up like this:
-- | This is a definition list:
--
-- [@foo@] The description of @foo@.
--
-- [@bar@] The description of @bar@.
Cunningly, the [] characters are not treated specially unless a [ is
found at the beginning of a paragraph, in which case the ] becomes
special in the following text.
- Add --use-contents and --gen-contents, along the lines of
--use-index and --gen-index added yesterday. Now we can generate a
combined index and contents for the whole of the hierarchical
libraries, and in theory the index/contents on the system could
be updated as new packages are added.
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support for i-parameters + zip comprehensions
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Catch another case of a paragraph containing just a DocMonospaced that
should turn into a DocCodeBlock.
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Fix cut-n-pasto
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Remove <P>..</P> from around list items, to reduce excess whitespace
between the items of bulleted and ordered lists.
(Suggestion from Daan Leijen).
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Patch to allow simple hyperlinking to an arbitrary location in another
module's documentation, from Volker Stolz.
Now in a doc comment:
#foo#
creates
<a name="foo"></a>
And you can use the form "M\#foo" to hyperlink to the label 'foo' in
module 'M'. Note that the backslash is necessary for now.
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Patches to quieten ghc -Wall, from those nice folks at Galois.
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Allow special id's ([], (), etc.) to be used in an import declarations.
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Allow exporting of individual class methods and record selectors. For
these we have to invent the correct type signature, which we do in the
simplest possible way (i.e. no context reduction nonsense in the class
case).
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Lots of changes:
- instances of a class are listed with the class, and
instances involving a datatype are listed with that type.
Derived instances aren't included at the moment: the calculation
to find the instance head for a derived instance is non-trivial.
- some formatting changes; use rows with specified height rather than
cellspacing in some places.
- various fixes (source file links were wrong, amongst others)
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Reworking of the internals to support documenting function arguments
(the Most Wanted new feature by the punters).
The old method of keeping parsed documentation in a Name -> Doc
mapping wasn't going to cut it for anntations on type components,
where there's no name to attach the documentation to, so I've moved to
storing all the documentation in the abstract syntax. Previously some
of the documentation was left in the abstract syntax by the parser,
but was later extracted into the mapping.
In order to avoid having to parameterise the abstract syntax over the
type of documentation stored in it, we have to parse the documentation
at the same time as we parse the Haskell source (well, I suppose we
could store 'Either String Doc' in the HsSyn, but that's clunky). One
upshot is that documentation is now parsed eagerly, and documentation
parse errors are fatal (but have better line numbers in the error
message).
The new story simplifies matters for the code that processes the
source modules, because we don't have to maintain the extra Name->Doc
mapping, and it should improve efficiency a little too.
New features:
- Function arguments and return values can now have doc annotations.
- If you refer to a qualified name in a doc string, eg. 'IO.putStr',
then Haddock will emit a hyperlink even if the identifier is not
in scope, so you don't have to make sure everything referred to
from the documentation is imported.
- several bugs & minor infelicities fixed.
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Give a more useful instance of Show for Module.
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Add support for existential quantifiers on constructors.
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Add a facility for specifying options that affect Haddock's treatment
of the module. Options are given at the top of the module in a
comma-separated list, beginning with '-- #'. eg.
-- # prune, hide, ignore-exports
Options currently available, with their meanings:
prune:
ignore declarations which have no documentation annotations
ignore-exports:
act as if the export list were not specified (i.e. export
everything local to the module).
hide:
do not include this module in the generated documentation, but
propagate any exported definitions to modules which re-export
them.
There's a slight change in the semantics for re-exporting a full
module by giving 'module M' in the export list: if module M does not
have the 'hide' option, then the documentation will now just contain a
reference to module M rather than the full inlined contents of that
module.
These features, and some other changes in the pipeline, are the result
of discussions between myself and Manuel Chakravarty
<chak@cse.unsw.edu.au> (author of IDoc) yesterday.
Also: some cleanups, use a Writer monad to collect error messages in
some places instead of just printing them with trace.
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- support for fundeps (partially contributed by Brett Letner - thanks
Brett).
- make it build with GHC 4.08.2
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- Add support for named chunks of documentation which can be
referenced from the export list.
- Copy the icon from $libdir to the destination in HTML mode.
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Handle gcons in export lists (a common extension).
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Now we understand (or at least don't barf on) type signatures in
patterns such as you might find when scoped type variables are in use.
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This is Haddock, my stab at a Haskell documentation tool. It's not
quite ready for release yet, but I'm putting it in the repository so
others can take a look.
It uses a locally modified version of the hssource parser, extended
with support for GHC extensions and documentation annotations.
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