[pkgsrc/trunk]: pkgsrc/mk/help mk/help: make variable more precise

[rillig <rillig%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/8dc5cb5c8801
branches:  trunk
changeset: 430678:8dc5cb5c8801
user:      rillig <rillig%pkgsrc.org@localhost>
date:      Sun May 03 09:44:07 2020 +0000

description:
mk/help: make variable more precise

The word "ignore" was too unspecific.  There are lines that should be
printed, and there are lines that should be evaluated.

diffstat:

 mk/help/help.awk |  12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diffs (53 lines):

diff -r f61b8fbcc1b6 -r 8dc5cb5c8801 mk/help/help.awk
--- a/mk/help/help.awk  Sun May 03 09:22:16 2020 +0000
+++ b/mk/help/help.awk  Sun May 03 09:44:07 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: help.awk,v 1.37 2020/05/03 09:06:59 rillig Exp $
+# $NetBSD: help.awk,v 1.38 2020/05/03 09:44:07 rillig Exp $
 #
 
 # This program extracts the inline documentation from *.mk files.
@@ -16,7 +16,7 @@
 
        found_anything = no;    # has some help text been found at all?
        last_fname = "";
-       ignore_this_line = no;
+       print_this_line = yes;
        ignore_next_empty_line = no;
        ignore_this_section = no;
 
@@ -127,14 +127,14 @@
 }
 
 {
-       ignore_this_line = (ignore_next_empty_line && $0 == "#") || $0 == "";
+       print_this_line = $0 != "" && !(ignore_next_empty_line && $0 == "#");
        ignore_next_empty_line = no;
 }
 
 # There is no need to print the RCS Id, since the full pathname
 # is prefixed to the file contents.
 /^#.*\$.*\$$/ {
-       ignore_this_line = yes;
+       print_this_line = no;
        ignore_next_empty_line = yes;
 }
 
@@ -149,7 +149,7 @@
                keywords[w] = yes;
                dprint("Adding keyword \"" w "\"");
        }
-       ignore_this_line = yes;
+       print_this_line = no;
        ignore_next_empty_line = yes;
 }
 
@@ -170,7 +170,7 @@
        end_of_topic();
 }
 
-(!ignore_this_line) {
+print_this_line {
        lines[nlines++] = $0;
 }