diff.c: split emit_line() from the first char and the rest of the line

diff --git a/t/t7002-grep.sh b/t/t7002-grep.sh
index c8b4f65f380f3941c75bd6ed52975777d2b28d67..087bacb89747bb3da7fc3f7ab3fe08bacea91d52 100755 (executable)
--- a/t/t7002-grep.sh
+++ b/t/t7002-grep.sh
@@ -22,9 +22,14 @@ test_expect_success setup '
        mkdir t &&
        echo test >t/t &&
        git add file x y z t/t &&
+       test_tick &&
        git commit -m initial
 '
 
+test_expect_success 'grep should not segfault with a bad input' '
+       test_must_fail git grep "("
+'
+
 for H in HEAD ''
 do
        case "$H" in
@@ -113,4 +118,54 @@ do
 
 done
 
+test_expect_success 'log grep setup' '
+       echo a >>file &&
+       test_tick &&
+       GIT_AUTHOR_NAME="With * Asterisk" \
+       GIT_AUTHOR_EMAIL="xyzzy@frotz.com" \
+       git commit -a -m "second" &&
+
+       echo a >>file &&
+       test_tick &&
+       git commit -a -m "third"
+
+'
+
+test_expect_success 'log grep (1)' '
+       git log --author=author --pretty=tformat:%s >actual &&
+       ( echo third ; echo initial ) >expect &&
+       test_cmp expect actual
+'
+
+test_expect_success 'log grep (2)' '
+       git log --author=" * " -F --pretty=tformat:%s >actual &&
+       ( echo second ) >expect &&
+       test_cmp expect actual
+'
+
+test_expect_success 'log grep (3)' '
+       git log --author="^A U" --pretty=tformat:%s >actual &&
+       ( echo third ; echo initial ) >expect &&
+       test_cmp expect actual
+'
+
+test_expect_success 'log grep (4)' '
+       git log --author="frotz\.com>$" --pretty=tformat:%s >actual &&
+       ( echo second ) >expect &&
+       test_cmp expect actual
+'
+
+test_expect_success 'log grep (5)' '
+       git log --author=Thor -F --grep=Thu --pretty=tformat:%s >actual &&
+       ( echo third ; echo initial ) >expect &&
+       test_cmp expect actual
+'
+
+test_expect_success 'log grep (6)' '
+       git log --author=-0700  --pretty=tformat:%s >actual &&
+       >expect &&
+       test_cmp expect actual
+
+'
+
 test_done