From 7e9e0a2ca868aaa214fb38a79fe71da34d6e00da Mon Sep 17 00:00:00 2001
From: Georgi Kirilov <in.the@repo>
Date: Fri, 31 Jan 2020 18:16:32 +0200
Subject: lexers: XML performance improvement

the new pattern does more or less the same thing, but forward
instead of backward.
---
 lua/lexers/xml.lua | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

(limited to 'lua')

diff --git a/lua/lexers/xml.lua b/lua/lexers/xml.lua
index d429ebb..7702444 100644
--- a/lua/lexers/xml.lua
+++ b/lua/lexers/xml.lua
@@ -20,13 +20,7 @@ local dq_str = l.delimited_range('"', false, true)
 local string = #S('\'"') * l.last_char_includes('=') *
                token(l.STRING, sq_str + dq_str)
 
-local in_tag = P(function(input, index)
-  local before = input:sub(1, index - 1)
-  local s, e = before:find('<[^>]-$'), before:find('>[^<]-$')
-  if s and e then return s > e and index or nil end
-  if s then return index end
-  return input:find('^[^<]->', index) and index or nil
-end)
+local in_tag = #P((1 - S"><")^0 * ">")
 
 -- Numbers.
 local number = #l.digit * l.last_char_includes('=') *
-- 
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