This patch supports the folding of \begin{...} and \end{...} macros.
The naive way to attempt such folding in AUCTeX via string
specifications in TeX-fold-macro-spec-list has many drawbacks. I
would be happy to elaborate upon these, but do not do so in this
message.This patch adds function specifications to TeX-fold-macro-spec-list and a new user-facing option TeX-fold-begin-end-spec-list that controls how to fold begin/end arguments. To get a flavor, see the screenshots at https://github.com/ultronozm/czm-tex-fold.el (but let me note that I've streamlined the code while preparing this patch). I'll illustrate here with some examples: - If the option TeX-fold-begin-end-spec-list is nil, then behavior is as before. - If the option contains an item such as (("↴" . "↲") ("itemize" "enumerate" "description" "frame")) then, e.g., \begin{enumerate} and \end{enumerate} fold to ↴ and ↲, respectively. - If the option contains an item such as ((TeX-fold-format-theorem-environment . "◼") ("note" ("theorem" "thm"))) then - \begin{note} folds to "Note", - \begin{theorem} and \begin{thm} fold to "Theorem", - \begin{theorem}[Foo] and \begin{thm}[Foo] fold to "Theorem (Foo)". - \end{note}, etc., fold to "◼". I've supplied what I believe to be reasonable defaults (attempting to err on the conservative side), but would welcome any feedback. Thanks, best, Paul
0001-Add-folding-support-for-begin-and-end-macros.patch
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