[jira] [Closed] (DOXIA-554) Parsing time for Markdown documents can take very long and hang site generation

["Hervé Boutemy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DOXIA-554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hervé Boutemy closed DOXIA-554.
-------------------------------
    Resolution: Fixed
      Assignee: Hervé Boutemy

PR merged, with little updates: now, I'll do MSITE-791 to integrate the result in m-site-p 3.7

thank you for your great work

> Parsing time for Markdown documents can take very long and hang site generation
> -------------------------------------------------------------------------------
>
>                 Key: DOXIA-554
>                 URL: https://issues.apache.org/jira/browse/DOXIA-554
>             Project: Maven Doxia
>          Issue Type: Bug
>          Components: Module - Markdown
>    Affects Versions: 1.7
>            Reporter: Michael Benz
>            Assignee: Hervé Boutemy
>             Fix For: 1.8
>
>         Attachments: maven-pom-sample-pegdown-performance.zip
>
>
> The parsing time for Markdown documents can take very long and hang site generation when e.g. long tables are being generated.
> The author of pegdown has marked the pegdown project deprecated since 2016-12-14 [pegdown.org|https://github.com/sirthias/pegdown/] and advises to switch to [flexmark-java|https://github.com/vsch/flexmark-java].
> {quote}
> The project is essentially unmaintained with tickets piling up and crucial bugs not being fixed.
> pegdown's parsing performance isn't great. In some cases of pathological input runtime can even become exponential, which means that the parser either appears to "hang" completely or abort processing after a time-out.
> {quote}
> Since the parsing timeout was increased in DOXIA-498 it is now possible to "hang" the site creation with a longer table like the one in this example.
> In case this sample is rendered using version 3.3 of the maven site



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