# bug#41841: 26.3; reftex and tikz's labels

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## bug#41841: 26.3; reftex and tikz's labels

 phs <[hidden email]> writes: > It seems reftex mistakes labels in tikz nodes with genuine \label 's > in LaTeX source. > > To reproduce: > > 1) open a buffer foo.tex in LaTeX mode > > 2) insert (via cut&paste) the following text > > \begin{figure} > \begin{tikzpicture} > \node at (0,0) [label={node 0}] % not a LaTeX label > \end{tikzpicture} > \caption{Figure that!} > \label{myfigure} % only genuine label > \end{figure} Does adding "tikzpicture" to reftex-label-ignored-macros-and-environments work? --8<---------------cut here---------------start------------->8--- reftex-label-ignored-macros-and-environments is a variable defined in ‘reftex-vars.el’. Its value is nil   You can customize this variable.   This variable was introduced, or its default value was changed, in   version 24.4 of Emacs. Documentation: List of macros and environments to be ignored when searching for labels. The purpose is to ignore environments and macros that use keyval style label=foo arguments, but the label has a different meaning than a \label{foo}.  Standard \label{...} definitions are never ignored. E.g., TikZ defines several macros/environments where [label=foo] defines the label to be printed at some node or edge, but it’s not a label used for referencing. Note that this feature is only supported if you are using AUCTeX and the functions ‘TeX-current-macro’ and ‘LaTeX-current-environment’ are bound.  Also note that this feature might slow down the reftex parsing process for large TeX files. --8<---------------cut here---------------end--------------->8--- In what's going to become Emacs 27.1, we are a bit more conservative and have a whitelist of environments in which we look for label=foo options. There, the bug doesn't happen anymore, so I'm closing this bug. Thanks, Tassilo