ConTeXt: Mix XHTML and TeX commands

Question

Background A document, having inline math statements, is being written in Markdown. The document is converted to XHTML for subsequent processing using ConTeXt. Problem The XHTML contains XML elements with inline TeX commands. The inline TeX commands are not interpreted by ConTeXt, resulting in output similar to the following: SSCCE Consider the following buffered XHTML snippet (e.g., generated from Markdown): startbuffer[document]

$N = R_{*} cdot f_{p} cdot n_{e} cdot f_{l} cdot f_{i} cdot f_{c} cdot L$

stopbuffer startxmlsetups xml:xhtml xmlsetsetup{xmldocument}{*}{-} xmlsetsetup{xmldocument}{body|p}{xml:*} stopxmlsetups startxmlsetups xml:body xmlflush{#1} stopxmlsetups startxmlsetups xml:p xmlflush{#1}par stopxmlsetups xmlregistersetup{xml:xhtml} starttext xmlprocessbuffer{xhtml}{document}{} stoptext Idea 1 - Syntax It's possible to produce documents that export new XHTML elements, such as: $N = R_{*} cdot f_{p} cdot n_{e} cdot f_{l} cdot f_{i} cdot f_{c} cdot L$ Or even without the $ sigil: N = R_{*} cdot f_{p} cdot n_{e} cdot f_{l} cdot f_{i} cdot f_{c} cdot L However, TeX allows for both inline $ and block-level $$ syntax. These could be exported as tex_inline and tex_block elements, respectively, but that seems like duplication because ConTeXt already contains the parsing logic. Idea 2 - Setups The problem is likely with the setups. Variations, such as those from the steps document, did not result in typeset math: startbuffer[document] $N = R_{*} cdot f_{p} cdot n_{e} cdot f_{l} cdot f_{i} cdot f_{c} cdot L$ stopbuffer startxmlsetups xml:xhtml xmlsetsetup{xmldocument}{*}{-} xmlsetsetup{xmldocument}{body|p|tex}{xml:*} stopxmlsetups % ... startxmlsetups xml:tex mathematics{xmlflush{#1}} stopxmlsetups Even if it worked, this approach may prove problematic because users can insert (inline) TeX into any element: p, blockquotes, emphasis, strong, td, li, etc. Idea 3 - Convert to MathML itex2MML and TeX4ht both convert TeX to MathML, but such a step should not be needed. Question How would you embed inline/block-level TeX macros anywhere inside a well-formed XHTML document such that the macros will be typeset by ConTeXt? (MathML is not a viable option for writing inside Markdown; conversion afterwards may be feasible.) References Dealing with XML in ConTeXt MKIV XML in ConTeXt Generating web and PDF output from once source Mixing XML and ConTeXt

Dave Jarvis · Accepted Answer

The following works: % ... $N = R_{*} cdot f_{p} cdot n_{e} cdot f_{l} cdot f_{i} cdot f_{c} cdot L$ % ... startxmlsetups xml:tex xmlflushcontext{#1} stopxmlsetups Using $$ also works.

ConTeXt: Mix XHTML and TeX commands

Background

Problem

SSCCE

Idea 1 – Syntax

Idea 2 – Setups

Idea 3 – Convert to MathML

Question

References

One Answer

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