add test cases for improve coverage

diff --git a/test/test_utf8.c b/test/test_utf8.c
index ec7726dee0a51b8752be5c9c0169a3d69f98424e..465242628ebe4a17269eca4cfb9d8c6c73795114 100644 (file)
--- a/test/test_utf8.c
+++ b/test/test_utf8.c
@@ -141,7 +141,9 @@ extern int main(int argc, char* argv[])
 
   x2("", "", 0, 0);
   x2("^", "", 0, 0);
+  x2("^a", "\na", 1, 2);
   x2("$", "", 0, 0);
+  x2("$\\O", "bb\n", 2, 3);
   x2("\\G", "", 0, 0);
   x2("\\A", "", 0, 0);
   x2("\\Z", "", 0, 0);
@@ -176,6 +178,7 @@ extern int main(int argc, char* argv[])
   n("\\D", "4");
   x2("\\b", "z ", 0, 0);
   x2("\\b", " z", 1, 1);
+  x2("\\b", "  z ", 2, 2);
   x2("\\B", "zz ", 1, 1);
   x2("\\B", "z ", 2, 2);
   x2("\\B", " z", 0, 0);
@@ -576,6 +579,7 @@ extern int main(int argc, char* argv[])
   x2("(?<pare>\\(([^\\(\\)]++|\\g<pare>)*+\\))", "((a))", 0, 5);
   x2("()*\\1", "", 0, 0);
   x2("(?:()|())*\\1\\2", "", 0, 0);
+  x2("(?:a*|b*)*c", "abadc", 4, 5);
   x3("(?:\\1a|())*", "a", 0, 0, 1);
   x2("x((.)*)*x", "0x1x2x3", 1, 6);
   x2("x((.)*)*x(?i:\\1)\\Z", "0x1x2x1X2", 1, 9);
@@ -585,6 +589,10 @@ extern int main(int argc, char* argv[])
   n("[0-9-a]", ":");          // PR#44
   x3("(\\(((?:[^(]|\\g<1>)*)\\))", "(abc)(abc)", 1, 4, 2); // PR#43
   x2("\\o{101}", "A", 0, 1);
+  x2("\\A(a|b\\g<1>c)\\k<1+3>\\z", "bbacca", 0, 6);
+  n("\\A(a|b\\g<1>c)\\k<1+3>\\z", "bbaccb");
+  x2("(?i)\\A(a|b\\g<1>c)\\k<1+2>\\z", "bBACcbac", 0, 8);
+  x2("(?i)(?<X>aa)|(?<X>bb)\\k<X>", "BBbb", 0, 4);
   x2("(?:\\k'+1'B|(A)C)*", "ACAB", 0, 4); // relative backref by postitive number
   x2("\\g<+2>(abc)(ABC){0}", "ABCabc", 0, 6); // relative call by positive number
   x2("A\\g'0'|B()", "AAAAB", 0, 5);
@@ -957,6 +965,8 @@ extern int main(int argc, char* argv[])
   x2("a<b>バージョンのダウンロード<\\/b>", "a<b>バージョンのダウンロード</b>", 0, 44);
   x2(".<b>バージョンのダウンロード<\\/b>", "a<b>バージョンのダウンロード</b>", 0, 44);
   x2("\\n?\\z", "こんにちは", 15, 15);
+  x2("(?m).*", "青赤黄", 0, 9);
+  x2("(?m).*a", "青赤黄a", 0, 10);
 
   x2("\\p{Hiragana}", "ぴ", 0, 3);
   n("\\P{Hiragana}", "ぴ");