lierdakil/pandoc-crossref

Referencing multiline equations?

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#131 opened on Sep 15, 2017

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 (13 comments) (3 reactions) (0 assignees)Haskell (1,057 stars) (78 forks)batch import
enhancementhelp wanted

Description

Is it possible to reference a particular line in a multiline equations, such as created by the align environment? A LaTeX example would be:

\begin{align}
f(x) &= x + a \label{eqn:two} \\
g(x) &= a x \label{eqn:one}
\end{align}

Given the example in the README, it appears I would give a label to the entire block and reference that one instead.

Contributor guide

Tech stack
None
Domain
documentation
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
pandoc crossrefLaTeXHaskell
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
Examine the pandoc crossref source code to understand how equation labels are currently parsed and referenced, particularly for multiline environments. Review the comments in the issue for any suggested syntax or implementation details. Consider whether a new label syntax for individual lines (e.g., \label{eqn:line1}) can be added without breaking existing functionality. Look at the pandoc AST representation of equations to see how to differentiate line level labels from block level labels.