Package: gawk Version: 1:4.1.4+dfsg-1 Severity: normal Hello,
https://www.gnu.org/software/gawk/manual/html_node/Gory-Details.html#Gory-Details states: At the runtime level, whenever gawk sees a ‘\’ [in the replacement text], if the following character is a digit, then the text that matched the corresponding parenthesized subexpression is placed in the generated output. Otherwise, no matter what character follows the ‘\’, it appears in the generated text and the ‘\’ does not [...]. this however isn't true when there are several backslashes: uwe@taurus:~$ echo 'a' | awk '{ gsub("a", "\\\\"); print }' \\ uwe@taurus:~$ echo 'a' | awk '{ gsub("a", "\\\\\\"); print }' \\\ uwe@taurus:~$ echo 'a' | awk '{ gsub("a", "\\\\\\\\"); print }' \\ The first two instances are still ok, but in the third I expect four backslashes, not two. With GNU Awk 4.0.2 (found on a Centos 7 machine) I get actually four; with gawk 1:4.2.1+dfsg-1 from sid there are also only two. When I pass n backslashes as replacement text it seems to output 2 * (n // 8) + (n % 8) / 2 backslashes instead of n // 2 (where "//" is integer division). Best regards Uwe -- System Information: Debian Release: buster/sid APT prefers testing APT policy: (700, 'testing'), (600, 'unstable'), (500, 'unstable-debug'), (500, 'stable'), (499, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.18.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages gawk depends on: ii libc6 2.27-6 ii libgmp10 2:6.1.2+dfsg-3 ii libmpfr6 4.0.1-1 ii libreadline7 7.0-5 ii libsigsegv2 2.12-2 gawk recommends no packages. Versions of packages gawk suggests: pn gawk-doc <none> -- no debconf information
