From e93a8766e520e01b5a00d7863bd6427f87c2ce66 Mon Sep 17 00:00:00 2001
From: penguindark <57967770+penguindark@users.noreply.github.com>
Date: Thu, 12 May 2022 10:49:57 +0200
Subject: [PATCH] regex: fix #14370, last IST not managed in advance tests
 (#14372)

---
 vlib/regex/regex.v      | 8 ++++----
 vlib/regex/regex_test.v | 6 ++++++
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/vlib/regex/regex.v b/vlib/regex/regex.v
index 53683165ae..bd63736c8e 100644
--- a/vlib/regex/regex.v
+++ b/vlib/regex/regex.v
@@ -1313,7 +1313,7 @@ fn (mut re RE) impl_compile(in_txt string) (int, int) {
 		pc1++
 	}
 
-	// println("last_bsls_char_pc: $last_bsls_char_pc")
+	// println('last_bsls_char_pc: $last_bsls_char_pc')
 	if last_bsls_char_pc >= 0 {
 		pc1 = last_bsls_char_pc + 1
 		mut is_last_bsls := true
@@ -2063,7 +2063,7 @@ pub fn (mut re RE) match_base(in_txt &u8, in_txt_len int) (int, int) {
 					continue
 				}
 
-				if re.prog[state.pc].dot_check_pc >= 0
+				if re.prog[state.pc].last_dot_flag == false && re.prog[state.pc].dot_check_pc >= 0
 					&& re.prog[state.pc].rep >= re.prog[state.pc].rep_min {
 					// load the char
 					// ch_t, _ := re.get_charb(in_txt, state.i+char_len)
@@ -2183,7 +2183,7 @@ pub fn (mut re RE) match_base(in_txt &u8, in_txt_len int) (int, int) {
 					continue
 				}
 
-				if re.prog[state.pc].bsls_check_pc >= 0
+				if re.prog[state.pc].last_dot_flag == false && re.prog[state.pc].bsls_check_pc >= 0
 					&& re.prog[state.pc].rep >= re.prog[state.pc].rep_min {
 					// load the char
 					// ch_t, _ := re.get_charb(in_txt, state.i+char_len)
@@ -2232,7 +2232,7 @@ pub fn (mut re RE) match_base(in_txt &u8, in_txt_len int) (int, int) {
 						char_len: char_len
 						last_dot_pc: state.pc
 					}
-					// if we are mananging a .* stay on the same char on return
+					// if we are managing a \[something]* stay on the same char on return
 					if re.prog[state.pc].rep_min == 0 {
 						dot_state.i -= char_len
 					}
diff --git a/vlib/regex/regex_test.v b/vlib/regex/regex_test.v
index 400362e796..bc38ffad67 100644
--- a/vlib/regex/regex_test.v
+++ b/vlib/regex/regex_test.v
@@ -165,6 +165,12 @@ match_test_suite = [
     TestItem{"aba", r"a*(b*)*a",0,3},
     TestItem{"/*x*/", r"/\**(.*)\**/",0,5},
     TestItem{"/*x*/", r"/*(.*)*/",0,5},
+
+    // test last IST check
+    TestItem{"refs/remotes/origin/mastep", r"refs/remotes/origin/(.*)",0,26},
+    TestItem{"refs/remotes/origin/master", r"refs/remotes/origin/(.*)",0,26},
+    TestItem{"refs/remotes/origin/mastep", r"refs/remotes/origin/(\w*)",0,26},
+    TestItem{"refs/remotes/origin/master", r"refs/remotes/origin/(\w*)",0,26},
 ]
 )