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#!/bin/sh
# This was approximately quadratic up to grep-2.6.3
. "${srcdir=.}/init.sh"; path_prepend_ ../src
require_en_utf8_locale_
require_timeout_
fail=0
# Create a 13000-line input
$AWK 'BEGIN {for (i=0; i<13000; i++) print "aba"}' /dev/null > in || fail=1
# Use 10 times the duration of running grep in the C locale as the timeout
# when running in en_US.UTF-8. Round up to whole seconds, since timeout
# can't deal with fractional seconds.
max_seconds=$(LC_ALL=C perl -le 'use Time::HiRes qw(time); my $s = time();
system q,grep -E '\''^([a-z]).\1$'\'' in > junk,;
my $elapsed = time() - $s; print int (1 + 10 * $elapsed)') \
|| { max_seconds=5;
warn_ "$ME_: warning: no perl? using default of 5s timeout"; }
# If the above finished so quickly that we'd have a 1-second timeout,
# increase it to a duration less likely to arise in a parallel test run.
test $max_seconds = 1 && max_seconds=5
for LOC in en_US.UTF-8; do
out=out-$LOC
LC_ALL=$LOC timeout ${max_seconds}s grep -aE '^([a-z]).\1$' in > $out 2>&1 \
|| fail=1
compare $out in || fail=1
done
Exit $fail
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