* The state of syntax stops is now properly included in the cache key for the
tokenizer-internal backtracking cache. This fixes some mis-parses when
re-parsing a bit of text with different flags.
* Clear the backtracking cache after each toplevelblock. This drops the peak
memory usage when expanding [[:en:Barack Obama]] from ~380M to ~110M.
Change-Id: Icdb879cae5907e4595903dd6acba2e686e8c2e4b
This patch fixes a tokenizer syntax error encountered on
[[:en:Template:JacksonvilleWikiProject-Member]] and [[:en:Template:Infobox
former country]] by allowing optional whitespace before start-of-line template
syntax.
Change-Id: Ic214a731de58bf766e51f23d5e24ea2ce6788f58
254 round-trip tests (up from 184) are now passing.
Also:
* tweaked runtests.sh slightly (use less -R instead of -r).
* made sure the EOFTk is preserved in phase 3 transforms
Change-Id: I1de22186bdb78e52019370e43f096877005b8f5a
* Added a generic stx_v 'syntax variant' round-trip attribute
* For pre, use stx:'html' vs. no syntax annotation. This might not be 100%
safe for arbitrary html input, so we might want to flip this to stx:'wiki'
later.
* 181 round-trip tests passing
Change-Id: If6080917a3a7c069066db3db60efe59b1f6c28d8
* Changed RDFa for links according to
http://www.mediawiki.org/wiki/Parsoid/RDFa_vocabulary
* Added basic support for internal/external link serialization
* Moved numbering of external links from tokenizer to LinkHandler
* Added round-tripping for generic HTML tags
* Replaced nowiki tag with <meta typeOf="mw:tag" content="nowiki"> and <meta
typeOf="mw:tag" content="/nowiki"> for now.
* 154 round-trip tests passing (node parserTests.js --roundtrip).
Change-Id: I16c4db21b1b543ee57c73e569c83025b64664542
* added stx: 'html' round-trip information for html tags
* added t_stx: 'row' info for row-wise table wiki syntax, and support for it
in the serializer
* the first table row is implicit in wikitext
* renamed lastToken to prevToken in serializer
* strip first newline in an initial chunkCB
Change-Id: I014b046539d1b674d830551c5fd1b74a67f81993
* Tokens are now immutable. The progress of transformations is tracked on
chunks instead of tokens. Tokenizer output is cached and can be directly
returned without a need for cloning. Transforms are required to clone or
newly create tokens they are modifying.
* Expansions per chunk are now shared between equivalent frames via a cache
stored on the chunk itself. Equivalence of frames is not yet ideal though,
as right now a hash tree of *unexpanded* arguments is used. This should be
switched to a hash of the fully expanded local parameters instead.
* There is now a vastly improved maybeSyncReturn wrapper for async transforms
that either forwards processing to the iterative transformTokens if the
current transform is still ongoing, or manages a recursive transformation if
needed.
* Parameters for parser functions are now wrapped in abstract Params and
ParserValue objects, which support some handy on-demand *value* expansions.
Keys are always expanded. Parser functions are converted to use these
interfaces, and now properly expand their values in the correct frame.
Making this expansion lazier is certainly possible, but would complicate
transformTokens and other token-handling machinery. Need to investigate if
it would really be worth it. Dead branch elimination is certainly a bigger
win overall.
* Complex recursive asynchronous expansions should now be closer to correct
for both the iterative (transformTokens) and recursive (maybeSyncReturn
after transformTokens has returned) code paths.
* Performance degraded slightly. There are no micro-optimizations done yet
and the shared expansion cache still has a low hit rate. The progress
tracking on chunks is not yet perfect, so there are likely a lot of unneeded
re-expansions that can be easily eliminated. There is also more debug
tracing right now. Obama currently expands in 54 seconds on my laptop.
Change-Id: I4a603f3d3c70ca657ebda9fbb8570269f943d6b6
This makes it possible to transclude list items from a template.
Note: "5 quotes" test is broken by this patch, it appears that ListHandler
newline processing is changing some state which mysteriously affects the
QuoteTransformer. This is ominous, hopefully there's a simple explanation...
gwicke: fix a bug in tokenizer triggered by definition lists like this:
**; foo : bar
Change-Id: I4e3a86596fe9bffcbfc4bf22895362c3bf742bad
* [[:en:Barack Obama]] can now be expanded in 77 seconds using 330MB RAM,
while it would prevously run out of RAM after ~30 minutes. Wohoooo!
The token transform framework rework really paid off.
* 303 parser tests are passing in the new record time of 5.5 seconds. Two more
tests are passing since these tests expect the day of the week to be
Thursday. Won't be the case tomorrow.
Change-Id: I56e850838476b546df10c6a239c8c9e29a1a3136
* All parser pipelines including tokenizer and DOM stuff are now constructed
from a 'recipe' data structure in a ParserPipelineFactory.
* All sub-pipelines of these can now be cached
* Event registrations to a pipeline are directly forwarded to the last
pipeline member to save relatively expensive event forwarding.
* Some APIs for on-demand expansion / format conversion of parameters from
parser functions are added:
param.to('tokens/expanded', cb)
param.to('text/wiki', cb) (this does not work yet)
All parameters are additionally wrapped into a Param object that provides
method for positional parameter naming (.named() or conversion to a dict
(.dict()).
* The async token transform manager is now separated from a frame object, with
the frame holding arguments, an on-demand expansion method and loop checks.
* Only keys of template parameters are now expanded. Parser functions or
template arguments trigger an expansion on-demand. This (unsurprisingly)
makes a big performance difference with typical switch-heavy template
systems.
* Return values from async transforms are no longer used in favor of plain
callbacks. This saves the complication of having to maintain two code paths.
A trick in transformTokens still avoids the construction of unneeded
TokenAccumulators.
* The results of template expansions are no longer buffered.
* 301 parser tests are passing
Known issues:
* Cosmetic cleanup remains to do
* Some parser functions do not support async expansions yet, and need to be
modified.
Change-Id: I1a7690baffbe8141cadf67270904a1b2e1df879a
* less verbose logging in noinclude processing and template expansion
* Give priority to the processing of templates transcluded from transclusions
to get closer to depth-first processing. This serves to minimize memory
usage from queued-up tokens.
* Increase the maximum outstanding requests per template retrieval. 10000
amazingly proved too low a limit on some big pages.
* Only process a single template request callback at a time for now
* Add a debug print in the treebuilder wrapper
* Don't treat multiple comments on a single line as a single comment to match
the PHP parser's behavior
Change-Id: I9a86b6d7bec3b9e1f17415daf1bf74170240721a
Eat unbalanced external link parts within template parameters. This does not
produce the same output as the PHP parser
(try echo '{{YouTube}}' | node parse.js), but preserves a level of sanity.
Need to check how common this is for external links. If it is rare enough,
moving the ']' after the parser function manually would fix the rendering for
the YouTube case.
Change-Id: I597d808efff36baa22191e7946a0061cc31120e8
behavior switches are converted to tokens which set parser.environment flags during the async transformation stage.
The next step would be for handlers in the sync23 stage to generate the TOC, section edit links, and so on according to these directives.
No tests written, because the switches are consumed and don't appear in rendered html. We can test the magic word layout controls individually, once they're implemented.
Another small change was to store option flags directly in the environment object, not that it makes much difference.
Change-Id: I863fbf4be1a17d2f6c31158298dd301f19ae1137
Match pairs of {{!}} or | for template productions, but not a mix of the two.
Example:
{{#if:1|{{!}}-
{{!}} {{#if:1|style="color: red"{{!}}|}}
}}
Note that the style parameter ends up as the *key* of an empty-valued
attribute on the table cell currently.
Change-Id: I5f9357dd1645ef97b0af89f32e8d92ae49218c72
Parser functions which only accept positional arguments now return both the
key and value of arguments. Complete attributes (key and value) for templates
and the like from parser functions are not yet supported though.
Change-Id: I3f81bb35acd27186222ce6d5217e820042527c01
gets a bit closer to supporting table fragments passed through template
arguments. Next, we'll need a way to indicate start-of-line position to
enable sol block-levels in template parameters.
Example:
{|
{{#if: true|{{!}}Table cell|}}
|}
construction' part of the HTML5 spec:
http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#url-manipulation-and-creation
Removed a few whitelisted test cases that are now passing directly.
The encoding canonicalization could also be moved to the Sanitizer. Doing this
early in token stream processing however has the advantage of providing further
transformations uniform data to work with. We could even consider to move this
even further into the tokenizer.
possible to support template / template argument expansion in image options,
and causes little trouble for wikilinks. Non-image wikilinks with multiple
text pipes are quite rare in the dumps, and concatenating description tokens
with a plain '|' is quite easy. 261 parser tests passing.
