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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
| commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
| tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /lib/raid6/unroll.awk | |
Initial import
Diffstat (limited to 'lib/raid6/unroll.awk')
| -rw-r--r-- | lib/raid6/unroll.awk | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/raid6/unroll.awk b/lib/raid6/unroll.awk new file mode 100644 index 000000000..c6aa03631 --- /dev/null +++ b/lib/raid6/unroll.awk @@ -0,0 +1,20 @@ + +# This filter requires one command line option of form -vN=n +# where n must be a decimal number. +# +# Repeat each input line containing $$ n times, replacing $$ with 0...n-1. +# Replace each $# with n, and each $* with a single $. + +BEGIN { + n = N + 0 +} +{ + if (/\$\$/) { rep = n } else { rep = 1 } + for (i = 0; i < rep; ++i) { + tmp = $0 + gsub(/\$\$/, i, tmp) + gsub(/\$\#/, n, tmp) + gsub(/\$\*/, "$", tmp) + print tmp + } +} |