diff --git a/copycat.tmux b/copycat.tmux
index 7b9f8fb..894b43a 100755
--- a/copycat.tmux
+++ b/copycat.tmux
@@ -15,10 +15,10 @@ set_default_stored_searches() {
 	local ip_search="$(get_tmux_option "$copycat_ip_search_option" "$default_ip_search_key")"
 
 	if stored_search_not_defined "$url_search"; then
-		tmux set-option -g "${COPYCAT_VAR_PREFIX}_${url_search}" "(https?://|git@|git://|ssh://|ftp://|file:///)[[:alnum:]?=%/_.:,;~@!#$&()*+-]*"
+		tmux set-option -g "${COPYCAT_VAR_PREFIX}_${url_search}" "(?<=\(|([\x22\x27]))((https?://|git@|git://|ssh://|ftp://|file:///)[\x22\x27[:alnum:]?=%/_.:,;~@!#$&()*+-]*)(?=\)|\1)|(?2)"
 	fi
 	if stored_search_not_defined "$file_search"; then
-		tmux set-option -g "${COPYCAT_VAR_PREFIX}_${file_search}" "(^|^\.|[[:space:]]|[[:space:]]\.|[[:space:]]\.\.|^\.\.)[[:alnum:]~_-]*/[][[:alnum:]_.#$%&+=/@-]*"
+		tmux set-option -g "${COPYCAT_VAR_PREFIX}_${file_search}" "(^|(?<=[[:space:]]))(\.|\.\.)?[[:alnum:]~_-]*/[][[:alnum:]_.#$%&+=/@-]*"
 	fi
 	if stored_search_not_defined "$digit_search"; then
 		tmux set-option -g "${COPYCAT_VAR_PREFIX}_${digit_search}" "[[:digit:]]+"
diff --git a/scripts/copycat_generate_results.sh b/scripts/copycat_generate_results.sh
index c5f94dc..db23884 100755
--- a/scripts/copycat_generate_results.sh
+++ b/scripts/copycat_generate_results.sh
@@ -17,7 +17,7 @@ reverse_and_create_copycat_file() {
 	local file=$1
 	local copycat_file=$2
 	local grep_pattern=$3
-	(tac 2>/dev/null || tail -r) < "$file" | grep -oniE "$grep_pattern" > "$copycat_file"
+	(tac 2>/dev/null || tail -r) < "$file" | grep -oniP "$grep_pattern" > "$copycat_file"
 }
 
 delete_old_files() {
diff --git a/test/test_file_search.exp b/test/test_file_search.exp
index a96bdef..06bc7f2 100755
--- a/test/test_file_search.exp
+++ b/test/test_file_search.exp
@@ -25,7 +25,7 @@ assert_highlighted "/this/is/some/file.txt" "middle of the pane, absolute path,
 
 display_text "random /this/is/some/file.txt"
 tmux_ctrl_f
-assert_highlighted " /this/is/some/file.txt" "middle of the pane, absolute path, not beginning of the line"
+assert_highlighted "/this/is/some/file.txt" "middle of the pane, absolute path, not beginning of the line"
 
 display_text "another/file.txt"
 tmux_ctrl_f
@@ -33,21 +33,21 @@ assert_highlighted "another/file.txt" "middle of the pane, relative path, beginn
 
 display_text "some text another/file.txt"
 tmux_ctrl_f
-assert_highlighted " another/file.txt" "middle of the pane, relative path, not beginning of the line"
+assert_highlighted "another/file.txt" "middle of the pane, relative path, not beginning of the line"
 
 create_output
 sleep 0.2
 send " some/file.xyz "
 sleep 0.2
 tmux_ctrl_f
-assert_highlighted " some/file.xyz" "middle of the pane relative path, pane bottom"
+assert_highlighted "some/file.xyz" "middle of the pane relative path, pane bottom"
 
 # match selection when line contains escaped chars
 #-------------------------------------------------
 new_tmux_pane
 display_text "filename=test.csv\r\nContent-Type: text/csv\r\n"
 tmux_ctrl_f
-assert_highlighted " text/csv" "match selection when line contains escaped chars"
+assert_highlighted "text/csv" "match selection when line contains escaped chars"
 
 # result navigation
 #------------------
@@ -67,7 +67,7 @@ next_match
 # /file/1.txt
 previous_match
 # /file/2.txt
-assert_highlighted " /file/2.txt" "result navigation at the top of the pane"
+assert_highlighted "/file/2.txt" "result navigation at the top of the pane"
 
 create_output
 display_text "/file/1.txt"
@@ -80,7 +80,7 @@ next_match
 # /file/1.txt
 previous_match
 # /file/2.txt
-assert_highlighted " /file/2.txt" "result navigation, middle of the pane"
+assert_highlighted "/file/2.txt" "result navigation, middle of the pane"
 
 # 2 matches on the same line
 #---------------------------
@@ -92,7 +92,7 @@ assert_highlighted "/file/1.txt" "2 matches on the same line, first match"
 display_text "/file/1.txt another/file/2.txt"
 tmux_ctrl_f
 next_match
-assert_highlighted " another/file/2.txt" "2 matches on the same line, second match"
+assert_highlighted "another/file/2.txt" "2 matches on the same line, second match"
 
 # no match, first and last match
 #-------------------------------
@@ -130,7 +130,7 @@ exit_irb
 enter_irb
 irb_display_text "some text file/within/irb.rb"
 tmux_ctrl_f
-irb_assert_highlighted " file/within/irb.rb" "irb console relative path, not beggining of line"
+irb_assert_highlighted "file/within/irb.rb" "irb console relative path, not beggining of line"
 exit_irb
 
 enter_irb
@@ -138,7 +138,7 @@ irb_generate_output
 send "puts /absolute/file/irb.rb"
 sleep 5
 tmux_ctrl_f
-irb_assert_highlighted " /absolute/file/irb.rb" "irb console absolute path, pane bottom, not beggining of line"
+irb_assert_highlighted "/absolute/file/irb.rb" "irb console absolute path, pane bottom, not beggining of line"
 exit_irb
 
 # quit