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Add wsf lexer performance improvements used by vis #16

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Add wsf lexer performance improvements used by vis #16

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9 changes: 1 addition & 8 deletions lexers/wsf.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -32,14 +32,7 @@ lex:add_rule('tag_close', tag_close)
local attribute = token('attribute', identifier) * #(lexer.space^0 * '=')
lex:add_rule('attribute', attribute)
lex:add_style('attribute', lexer.styles.type)

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 * '>')

-- Equals.
local equals = token(lexer.OPERATOR, '=') * in_tag
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