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	patch 9.1.0694: matchparen is slow on a long line
Problem:  The matchparen plugin is slow on a long line.
Solution: Don't use a regexp to get char at and before cursor.
          (zeertzjq)
Example:
```vim
  call setline(1, repeat(' foobar', 100000))
  runtime plugin/matchparen.vim
  normal! $hhhhhhhh
```
closes: #15568
Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
			
			
This commit is contained in:
		
				
					committed by
					
						 Christian Brabandt
						Christian Brabandt
					
				
			
			
				
	
			
			
			
						parent
						
							dc2c75c6b5
						
					
				
				
					commit
					81e7513c86
				
			| @@ -60,12 +60,8 @@ func s:Highlight_Matching_Pair() | ||||
|   let before = 0 | ||||
|  | ||||
|   let text = getline(c_lnum) | ||||
|   let matches = matchlist(text, '\(.\)\=\%'.c_col.'c\(.\=\)') | ||||
|   if empty(matches) | ||||
|     let [c_before, c] = ['', ''] | ||||
|   else | ||||
|     let [c_before, c] = matches[1:2] | ||||
|   endif | ||||
|   let c_before = text->strpart(0, c_col - 1)->slice(-1) | ||||
|   let c = text->strpart(c_col - 1)->slice(0, 1) | ||||
|   let plist = split(&matchpairs, '.\zs[:,]') | ||||
|   let i = index(plist, c) | ||||
|   if i < 0 | ||||
|   | ||||
							
								
								
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_1.dump
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_1.dump
									
									
									
									
									
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							| @@ -0,0 +1,10 @@ | ||||
| >a+0&#ffffff0@7|(*&| +&@64 | ||||
| |b@3|)*&|c+&@1| @66 | ||||
| |~+0#4040ff13&| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| | +0#0000000&@56|1|,|1| @10|A|l@1|  | ||||
							
								
								
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_2.dump
									
									
									
									
									
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										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_2.dump
									
									
									
									
									
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							| @@ -0,0 +1,10 @@ | ||||
| |a+0&#ffffff0@7>(*0(ffff15| +0&#ffffff0@64 | ||||
| |b@3|)*0(ffff15|c+0&#ffffff0@1| @66 | ||||
| |~+0#4040ff13&| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| | +0#0000000&@56|1|,|9| @10|A|l@1|  | ||||
							
								
								
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_3.dump
									
									
									
									
									
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								src/testdir/dumps/Test_matchparen_mbyte_3.dump
									
									
									
									
									
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							| @@ -0,0 +1,10 @@ | ||||
| |a+0&#ffffff0@7|(*&| +&@64 | ||||
| |b@3|)*&|c+&>c| @66 | ||||
| |~+0#4040ff13&| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| | +0#0000000&@56|2|,|9|-|8| @8|A|l@1|  | ||||
							
								
								
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_4.dump
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_4.dump
									
									
									
									
									
										Normal file
									
								
							| @@ -0,0 +1,10 @@ | ||||
| |a+0&#ffffff0@7|(*0(ffff15| +0&#ffffff0@64 | ||||
| |b@3>)*0(ffff15|c+0&#ffffff0@1| @66 | ||||
| |~+0#4040ff13&| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| | +0#0000000&@56|2|,|5| @10|A|l@1|  | ||||
							
								
								
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_5.dump
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_5.dump
									
									
									
									
									
										Normal file
									
								
							| @@ -0,0 +1,10 @@ | ||||
| |a+0&#ffffff0@7|(*&| +&@64 | ||||
| >b@3|)*&|c+&@1| @66 | ||||
| |~+0#4040ff13&| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| | +0#0000000&@56|2|,|1| @10|A|l@1|  | ||||
							
								
								
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_6.dump
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_6.dump
									
									
									
									
									
										Normal file
									
								
							| @@ -0,0 +1,10 @@ | ||||
| |a+0&#ffffff0@7|(*0(ffff15> +0&#ffffff0@64 | ||||
| |b@3|)*0(ffff15|c+0&#ffffff0@1| @66 | ||||
| |~+0#4040ff13&| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |-+2#0000000&@1| |I|N|S|E|R|T| |-@1| +0&&@44|1|,|1|2|-|1@1| @6|A|l@1|  | ||||
							
								
								
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_7.dump
									
									
									
									
									
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										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_7.dump
									
									
									
									
									
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							| @@ -0,0 +1,10 @@ | ||||
| |a+0&#ffffff0@7|(*&| +&@64 | ||||
| |b@3|)*&|c+&@1> @66 | ||||
| |~+0#4040ff13&| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |-+2#0000000&@1| |I|N|S|E|R|T| |-@1| +0&&@44|2|,|1|0|-|9| @7|A|l@1|  | ||||
							
								
								
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_8.dump
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										10
									
								
								src/testdir/dumps/Test_matchparen_mbyte_8.dump
									
									
									
									
									
										Normal file
									
								
							| @@ -0,0 +1,10 @@ | ||||
| |a+0&#ffffff0@7|(*0(ffff15| +0&#ffffff0@64 | ||||
| |b@3|)*0(ffff15> +0&#ffffff0@68 | ||||
| |~+0#4040ff13&| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |~| @73 | ||||
| |-+2#0000000&@1| |I|N|S|E|R|T| |-@1| +0&&@44|2|,|8|-|7| @8|A|l@1|  | ||||
| @@ -108,5 +108,35 @@ func Test_matchparen_pum_clear() | ||||
|   call StopVimInTerminal(buf) | ||||
| endfunc | ||||
|  | ||||
| " Test that matchparen works with multibyte chars in 'matchpairs' | ||||
| func Test_matchparen_mbyte() | ||||
|   CheckScreendump | ||||
|  | ||||
|   let lines =<< trim END | ||||
|     source $VIMRUNTIME/plugin/matchparen.vim | ||||
|     call setline(1, ['aaaaaaaa(', 'bbbb)cc']) | ||||
|     set matchpairs+=(:) | ||||
|   END | ||||
|  | ||||
|   call writefile(lines, 'XmatchparenMbyte', 'D') | ||||
|   let buf = RunVimInTerminal('-S XmatchparenMbyte', #{rows: 10}) | ||||
|   call VerifyScreenDump(buf, 'Test_matchparen_mbyte_1', {}) | ||||
|   call term_sendkeys(buf, "$") | ||||
|   call VerifyScreenDump(buf, 'Test_matchparen_mbyte_2', {}) | ||||
|   call term_sendkeys(buf, "j") | ||||
|   call VerifyScreenDump(buf, 'Test_matchparen_mbyte_3', {}) | ||||
|   call term_sendkeys(buf, "2h") | ||||
|   call VerifyScreenDump(buf, 'Test_matchparen_mbyte_4', {}) | ||||
|   call term_sendkeys(buf, "0") | ||||
|   call VerifyScreenDump(buf, 'Test_matchparen_mbyte_5', {}) | ||||
|   call term_sendkeys(buf, "kA") | ||||
|   call VerifyScreenDump(buf, 'Test_matchparen_mbyte_6', {}) | ||||
|   call term_sendkeys(buf, "\<Down>") | ||||
|   call VerifyScreenDump(buf, 'Test_matchparen_mbyte_7', {}) | ||||
|   call term_sendkeys(buf, "\<C-W>") | ||||
|   call VerifyScreenDump(buf, 'Test_matchparen_mbyte_8', {}) | ||||
|  | ||||
|   call StopVimInTerminal(buf) | ||||
| endfunc | ||||
|  | ||||
| " vim: shiftwidth=2 sts=2 expandtab | ||||
|   | ||||
| @@ -704,6 +704,8 @@ static char *(features[]) = | ||||
|  | ||||
| static int included_patches[] = | ||||
| {   /* Add new patch number below this line */ | ||||
| /**/ | ||||
|     694, | ||||
| /**/ | ||||
|     693, | ||||
| /**/ | ||||
|   | ||||
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