From 882906b3c391e6841b186330824295f439955ddf Mon Sep 17 00:00:00 2001
From: keie <none@none>
Date: Thu, 31 Jan 1985 14:50:15 +0000
Subject: [PATCH] Added a few sentences about the capability of ack to
 preprocess Pascal programs and one restriction that imposes on programs using
 it.

---
 doc/pcref.doc | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/doc/pcref.doc b/doc/pcref.doc
index b2cd3c335..0cf420318 100644
--- a/doc/pcref.doc
+++ b/doc/pcref.doc
@@ -1334,6 +1334,19 @@ Alternate symbol representation.
 .sp
 The comment delimiters '(*' and '*)' are recognized and treated like '{' and '}'.
 The other alternate representations of symbols are not recognized.
+.sp
+.ti -3
+9.~\
+Pre-processing.
+.sp
+If the very first character of a file containing a Pascal
+program is the sharp ('#', ASCII 23(hex)) the file is preprocessed
+in the same way as C programs.
+Lines beginning with a '#' are taken as preprocessor command lines
+and not fed to the Pascal compiler proper.
+C style comments, /*......*/, are removed by the C preprocessor,
+thus C comments inside Pascal programs are also removed when they
+are fed through the preprocessor.
 .CH "Deviations from the standard"
 Ack-Pascal deviates from the (March 1980) standard proposal in the following ways:
 .IS