reftex: Collecting Phrases
5.2.1 Collecting Phrases
------------------------
Phrases for indexing can be collected while writing the document. The
command ‘C-c \’ (‘reftex-index-phrase-selection-or-word’) copies the
current selection (if active) or the word near point into the phrases
buffer. It then selects this buffer, so that the phrase line can be
edited. To return to the LaTeX document, press ‘C-c C-c’
(‘reftex-index-phrases-save-and-return’).
You can also prepare the list of index phrases in a different way and
copy it into the phrases file. For example you might want to start from
a word list of the document and remove all words which should not be
indexed.
The phrase lines in the phrase buffer must have a specific format.
RefTeX will use font-lock to indicate if a line has the proper format.
A phrase line looks like this:
[KEY] <TABs> PHRASE [<TABs> ARG[&&ARG]... [ || ARG]...]
‘<TABs>’ stands for white space containing at least one <TAB>. KEY
must be at the start of the line and is the character identifying one of
the macros defined in the file header. It is optional; when omitted,
the first macro definition line in the file will be used for this
phrase. The PHRASE is the phrase to be searched for when indexing. It
may contain several words separated by spaces. By default the search
phrase is also the text entered as argument of the index macro. If you
want the index entry to be different from the search phrase, enter
another <TAB> and the index argument ARG. If you want to have each
match produce several index entries, separate the different index
arguments with ‘ && ’(1). If you want to be able to choose at each
match between several different index arguments, separate them with ‘ ||
’(2). Here is an example:
%--------------------------------------------------------------------
I Sun
i Planet Planets
i Vega Stars!Vega
Jupiter Planets!Jupiter
i Mars Planets!Mars || Gods!Mars || Chocolate Bars!Mars
i Pluto Planets!Pluto && Kuiper Belt Objects!Pluto
So ‘Sun’ will be indexed directly as ‘\index*{Sun}’, while ‘Planet’
will be indexed as ‘\index{Planets}Planet’. ‘Vega’ will be indexed as a
subitem of ‘Stars’. The ‘Jupiter’ line will also use the ‘i’ macro as
it was the first macro definition in the file header (see above
example). At each occurrence of ‘Mars’ you will be able choose between
indexing it as a subitem of ‘Planets’, ‘Gods’ or ‘Chocolate Bars’.
Finally, every occurrence of ‘Pluto’ will be indexed as
‘\index{Planets!Pluto}\index{Kuiper Belt Objects!Pluto}Pluto’ and will
therefore create two different index entries.
---------- Footnotes ----------
(1) ‘&&’ with optional spaces, see
‘reftex-index-phrases-logical-and-regexp’.
(2) ‘||’ with optional spaces, see
‘reftex-index-phrases-logical-or-regexp’.