Variable: reftex-index-phrases-wrap-long-lines
reftex-index-phrases-wrap-long-lines is a customizable variable
defined in reftex-vars.el.gz.
Value
nil
Documentation
Non-nil means, when indexing from the phrases buffer, wrap lines.
Inserting indexing commands in a line makes the line longer - often so long that it does not fit onto the screen. When this variable is non-nil, newlines will be added as necessary before and/or after the indexing command to keep lines short. However, the matched text phrase and its index command will always end up on a single line.
Source Code
;; Defined in /usr/src/emacs/lisp/textmodes/reftex-vars.el.gz
(defcustom reftex-index-phrases-wrap-long-lines nil
"Non-nil means, when indexing from the phrases buffer, wrap lines.
Inserting indexing commands in a line makes the line longer - often
so long that it does not fit onto the screen. When this variable is
non-nil, newlines will be added as necessary before and/or after the
indexing command to keep lines short. However, the matched text
phrase and its index command will always end up on a single line."
:group 'reftex-index-support
:type 'boolean)