gbranden pushed a commit to branch master
in repository groff.
commit 4caf7049857cfc02bad984da46ab4d02c30f8b29
Author: G. Branden Robinson <[email protected]>
AuthorDate: Sat Nov 30 17:42:20 2024 -0600
HACKING: Correct my bad advice regarding `wc`.
---
HACKING | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/HACKING b/HACKING
index 97f08eaba..49a815884 100644
--- a/HACKING
+++ b/HACKING
@@ -160,11 +160,12 @@ Here are some portability notes on writing automated
tests.
Here is a workaround.
res=$(whatever | wc -l)
- res=$(expr "$res" + 0) || exit 99
+ res=$(( res + 0 )) || exit 99
- "expr"'s output is more rigidly specified, and if for some reason we
- get unacceptable non-integer garbage from "wc", we exit the test
- script with the code reserved for "hard errors".
+ If for some reason we get unacceptable non-integer garbage from "wc",
+ we exit the test script with the code reserved for "hard errors".
+ Shell arithmetic is unfortunately one of the many POSIX shell features
+ that Solaris 10's /bin/sh does not implement; see the "PROBLEMS" file.
* The "od" command on macOS can put extra space characters (i.e., spaces
that don't correspond to the input) at the ends of lines when using
_______________________________________________
groff-commit mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/groff-commit
