[groff] 17/19: doc/groff.texi: Add more operators to index.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 5779cbb9f9840660d7bb57a0ea6f9073815eb488
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Tue Nov 9 09:55:18 2021 +1100

    doc/groff.texi: Add more operators to index.
---
 doc/groff.texi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/doc/groff.texi b/doc/groff.texi
index c3cf17f..e207f79 100644
--- a/doc/groff.texi
+++ b/doc/groff.texi
@@ -5677,6 +5677,7 @@ The register@tie{}@code{z} now contains@tie{}5.
 @item
 @cindex scaling operator
 @cindex operator, scaling
+@opindex ;
 Scaling: @code{(@var{c};@var{e})}.  Evaluate@tie{}@var{e}
 using@tie{}@var{c} as the default scaling indicator.  If @var{c} is
 missing, ignore scaling indicators in the evaluation of@tie{}@var{e}.
@@ -5698,6 +5699,8 @@ be expected.
 @cindex @code{-}, and page motion
 @cindex motion operators
 @cindex operators, motion
+@opindex + (unary)
+@opindex - (unary)
 For many requests that cause a motion on the page, the unary operators
 @samp{+} and @samp{-} work differently if leading an expression.  They
 then indicate a motion relative to the current position (down or up,
@@ -5727,6 +5730,7 @@ Here, leading plus and minus signs indicate increments 
and decrements.
 
 @xref{Setting Registers}, for some examples.
 
+@opindex |
 @cindex @code{|}, and page motion
 @cindex absolute position operator (@code{|})
 @cindex position, absolute, operator (@code{|})