gbranden pushed a commit to branch master
in repository groff.
commit 66435920d5df76ca76eb06f6cad82fab1913baa3
Author: G. Branden Robinson <[email protected]>
AuthorDate: Mon Nov 3 00:10:58 2025 -0600
[doc,man]: Improve numeric expression material.
Clarify. Favor active voice over passive. Syncronize man page and
Texinfo.
---
doc/groff.texi.in | 15 +++++++++------
man/groff.7.man | 11 ++++++-----
2 files changed, 15 insertions(+), 11 deletions(-)
diff --git a/doc/groff.texi.in b/doc/groff.texi.in
index 7a6d0046f..d80b79390 100644
--- a/doc/groff.texi.in
+++ b/doc/groff.texi.in
@@ -6920,9 +6920,11 @@ requests and escape sequences:@: @code{bp}, @code{in},
@code{ll},
@code{lt}, @code{nm}, @code{nr}, @code{pl}, @code{pn}, @code{po},
@code{ps}, @code{pvs}, @code{rt}, @code{ti}, @code{\H}, @code{\R}, and
@code{\s}. Here, leading plus and minus signs serve as incrementation
-and decrementation operators, respectively. To negate an expression,
-subtract it from zero or include the unary minus in parentheses with its
-argument. @xref{Setting Registers}, for examples.
+and decrementation operators, respectively.
+To negate an expression in these contexts,
+subtract it from zero
+or include the unary minus in parentheses with its argument.
+@xref{Setting Registers}, for examples.
@opindex |
@cindex @code{|}, and page motion
@@ -7019,9 +7021,10 @@ Register Formats}.
@cindex space characters, in expressions
@cindex expressions, and space characters
-Because spaces separate arguments to requests, spaces are not allowed in
-numeric expressions unless the (sub)expression containing them is
-surrounded by parentheses. @xref{Invoking Requests}, and
+Because spaces separate arguments to requests,
+spaces are not allowed in numeric expressions
+unless parentheses surround the (sub)expression containing them.
+@xref{Invoking Requests}, and
@ref{Conditionals and Loops}.
@Example
diff --git a/man/groff.7.man b/man/groff.7.man
index b6ee85755..4b2ed4d1e 100644
--- a/man/groff.7.man
+++ b/man/groff.7.man
@@ -1333,7 +1333,7 @@ leading plus and minus signs serve as incrementation and
decrementation
operators,
respectively.
.
-To negate an expression,
+To negate an expression in these contexts,
subtract it from zero
or include the unary minus in parentheses with its argument.
.\" @xref{Setting Registers}, for examples.
@@ -1382,10 +1382,11 @@ this is the default.\" @xref{Assigning Register
Formats}.
.
.
.P
-Due to the way arguments are parsed,
-spaces are not allowed in numeric expressions unless the (sub)expression
-containing them is surrounded by parentheses.
-.\"@xref{Request and Macro Arguments}, and @ref{Conditionals and Loops}.
+Because spaces separate arguments to requests,
+spaces are not allowed in numeric expressions
+unless parentheses surround the (sub)expression containing them.
+.\"@xref{Invoking Requests}, and
+.\"@ref{Conditionals and Loops}.
.\" END Keep (roughly) parallel with groff.texi node "Numeric
.\" expressions".
.
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