gbranden pushed a commit to branch master
in repository groff.
commit df32a1df67b1d323648c76f0d57f46fb0b9f9c83
Author: G. Branden Robinson <[email protected]>
AuthorDate: Sat Aug 23 00:15:38 2025 -0500
[hdtbl]: Drop Control+G from macro files (1/2).
* contrib/hdtbl/hdmisc.tmac (t*index): Replace Control+G character used
in string processing with dummy character. (It's not used for
matching, but apparently to work around the `substring` request's
unfortunate index handling.)
---
contrib/hdtbl/ChangeLog | 7 +++++++
contrib/hdtbl/hdmisc.tmac | 4 ++--
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/contrib/hdtbl/ChangeLog b/contrib/hdtbl/ChangeLog
index 850ae3173..1f82f68b4 100644
--- a/contrib/hdtbl/ChangeLog
+++ b/contrib/hdtbl/ChangeLog
@@ -1,3 +1,10 @@
+2025-08-23 G. Branden Robinson <[email protected]>
+
+ * hdmisc.tmac (t*index): Replace Control+G character used in
+ string processing with dummy character. (It's not used for
+ matching, but apparently to work around the `substring`
+ request's unfortunate index handling.)
+
2025-08-21 G. Branden Robinson <[email protected]>
* hdtbl.tmac: Diagnose and skip loading the package in
diff --git a/contrib/hdtbl/hdmisc.tmac b/contrib/hdtbl/hdmisc.tmac
index 6df2d782a..9dd3cd6ba 100644
--- a/contrib/hdtbl/hdmisc.tmac
+++ b/contrib/hdtbl/hdmisc.tmac
@@ -148,12 +148,12 @@ along with this program. If not, see
<http://www.gnu.org/licenses/>.
. return
. \}
.
-. length ** \\$1
+. length ** \\$1\&
. length $2 \\$2
. nr * 0-1 1
.
. while (\\n+[*] < \\n[**]) \{\
-. ds * \\$1\"
+. ds * \\$1\&\"
. substring * \\n[*] (\\n[*] <? (\\n[*] + \\n[$2] - 1))
. \" The surrounding \? escapes emulate string comparison.
. if "\?\\*[*]\?"\?\\$2\?" \
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