reftex-index-phrases-phrase-regexp2

reftex-index-phrases-phrase-regexp2 is a variable defined in `reftex-index.el'.
Its value is

"^\\(\\S-?\\)\\(	\\)\\([^	]*\\S-\\)\\(	[ 	]*\\)\\([^\n	]*\\S-\\)[ 	]*$"

• This variable may be risky if used as a file-local variable.

Documentation:
Regular expression matching phrases which have a separate index key.