gbranden pushed a commit to branch master
in repository groff.
commit 6f251143e12075e25c928811562bb4a462e5f05f
Author: G. Branden Robinson <[email protected]>
AuthorDate: Sat Aug 22 15:03:37 2026 -0500
eqn(1): Fix content and style nits.
Content:
* Reinforce status of parameterized macros as a GNU eqn extension.
Style:
* Favor present tense over future.
* Favor active voice over passive.
---
src/preproc/eqn/eqn.1.man | 31 +++++++++++++++++++++----------
1 file changed, 21 insertions(+), 10 deletions(-)
diff --git a/src/preproc/eqn/eqn.1.man b/src/preproc/eqn/eqn.1.man
index 98232eff2..44e9b5434 100644
--- a/src/preproc/eqn/eqn.1.man
+++ b/src/preproc/eqn/eqn.1.man
@@ -339,7 +339,7 @@ they must appear at the outermost lexical scope.
This roughly means that they can't appear within braces that are
necessary to disambiguate the input;
.I @g@eqn
-will diagnose an error in this event.
+diagnoses an error in this event.
.
(See subsection \[lq]Macros\[rq] below for additional token separation
rules.)
@@ -1582,18 +1582,25 @@ commas and parentheses also serve as token separators.
A macro argument is not terminated by a comma inside parentheses nested
within it.
.
-In a macro definition,
-.BI $ n\c
-,
+When GNU
+.I eqn \" GNU
+interpolates a macro,
+it replaces each occurrence of
+.BI $ n
+in its definition,
where
.I n
is between 1 and\~9 inclusive,
-is replaced by the
+with the
.IR n th
argument;
if there are fewer than
.IR n \~arguments,
-it is replaced by nothing.
+GNU
+.I eqn \" GNU
+replaces
+.BI $ n
+by nothing.
.
.
.\" ====================================================================
@@ -1735,10 +1742,12 @@ primitive
sets a character's type,
which determines the face used to set it.
.
-The
+GNU
+.I eqn \" GNU
+sets the
.RB \%\[lq] letter \[rq]
-type is set in italics;
-others are set in roman.
+type in italics,
+and others in roman.
.
Use the
.B bold
@@ -2261,7 +2270,9 @@ this being the difference between the widths of the
parameter used by binary operators and that of the full space.
.
Independently,
-we can define a macro \[lq]frac\[rq] for setting fractions.
+with GNU
+.I eqn \" GNU
+we can define a parameterized macro \[lq]frac\[rq] to typeset fractions.
.
.
.br
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