Viewing Cross-References ************************ RefTeX can display cross-referencing information. This means, if two document locations are linked, RefTeX can display the matching location(s) in another window. The `\label' and `\ref' macros are one way of establishing such a link. Also, a `\cite' macro is linked to the corresponding `\bibitem' macro or a BibTeX database entry. The feature is invoked by pressing `C-c &' (`reftex-view-crossref') while point is on the KEY argument of a macro involved in cross-referencing. You can also click with `S-mouse-2' on the macro argument. Here is what will happen for individual classes of macros: `\ref' Display the corresponding label definition. All usual variants(1) of the `\ref' macro are active for cross-reference display. This works also for labels defined in an external document when the current document refers to them through the `xr' interface (Note: xr (LaTeX package)). `\label' Display a document location which references this label. Pressing `C-c &' several times moves through the entire document and finds all locations. Not only the `\label' macro but also other macros with label arguments (as configured with `reftex-label-alist') are active for cross-reference display. `\cite' Display the corresponding BibTeX database entry or `\bibitem'. All usual variants(2) of the `\cite' macro are active for cross-reference display. `\bibitem' Display a document location which cites this article. Pressing `C-c &' several times moves through the entire document and finds all locations. BibTeX `C-c &' is also active in BibTeX buffers. All locations in a document where the database entry at point is cited will be displayed. On first use, RefTeX will prompt for a buffer which belongs to the document you want to search. Subsequent calls will use the same document, until you break this link with a prefix argument to `C-c &'. `\index' Display other locations in the document which are marked by an index macro with the same key argument. Along with the standard `\index' and `\glossary' macros, all macros configured in `reftex-index-macros' will be recognized. While the display of cross referencing information for the above mentioned macros is hard-coded, you can configure additional relations in the variable `reftex-view-crossref-extra'. ---------- Footnotes ---------- (1) all macros that start with `ref' or end with `ref' or `refrange' (2) all macros that either start or end with `cite'
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