From 6feec15b59de91e753e0ab55e748c2ec6192b80a Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Sun, 6 Apr 2025 22:23:57 -0700
Subject: doc: mention whitespace issue in infix

* txr.1: Make it clear that whitespace is required between
atoms in infix expressions most of the time, so certain
compact notations from C-like syntax are not achieved.
---
 txr.1 | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/txr.1 b/txr.1
index 3d4d367d..b2b01fb9 100644
--- a/txr.1
+++ b/txr.1
@@ -54120,6 +54120,19 @@ which means that it is notated with parentheses:
 Informally speaking, the Infix Syntax feature does not eliminate the
 outer parentheses.
 
+Whitespace is required between atoms in infix expressions, because
+they are ordinary Lisp lists. The infix feature does not introduce
+any new token-level syntax. The expression
+.code "(b + a ++)"
+cannot be written
+.code "(b+a++)"
+or
+.codn "(b + a++)" .
+In situations where parentheses or braces are adjacent to
+each other or to an atom, spaces may be elided, as allowed by
+Lisp syntax, exemplified by:
+.codn "(log(a[i][j]++))" .
+
 .NP* Operator Table
 
 .TS
-- 
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