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Skip unnecessary string cleanups

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We shouldn't need to clean up strings via a cleanup function and don't
need to do it via a bunch of string.gsub() functions.

Signed-off-by: Mark Stemm <mark.stemm@gmail.com>
This commit is contained in:
Mark Stemm 2019-06-27 16:59:16 -07:00 committed by Mark Stemm
parent 047f12d0f6
commit 0e4f2ec17c
1 changed files with 1 additions and 17 deletions
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18
userspace/engine/lua/parser.lua
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@ -152,22 +152,6 @@ local function rel (left, sep, right)
return left * sep * right / function(e1, op, e2) return { type = "BinaryRelOp", operator = op, left = e1, right = e2 } end
end
local function fix_str (str)
str = string.gsub(str, "\\a", "\a")
str = string.gsub(str, "\\b", "\b")
str = string.gsub(str, "\\f", "\f")
str = string.gsub(str, "\\n", "\n")
str = string.gsub(str, "\\r", "\r")
str = string.gsub(str, "\\t", "\t")
str = string.gsub(str, "\\v", "\v")
str = string.gsub(str, "\\\n", "\n")
str = string.gsub(str, "\\\r", "\n")
str = string.gsub(str, "\\'", "'")
str = string.gsub(str, '\\"', '"')
str = string.gsub(str, '\\\\', '\\')
return str
end
-- grammar
@ -243,7 +227,7 @@ local G = {
(digit^1 * V"Expo");
Number = C(V"Hex" + V"Float" + V"Int") /
function (n) return tonumber(n) end;
String = (P'"' * C(((P'\\' * P(1)) + (P(1) - P'"'))^0) * P'"' + P"'" * C(((P"\\" * P(1)) + (P(1) - P"'"))^0) * P"'") / function (s) return fix_str(s) end;
String = (P'"' * C(((P'\\' * P(1)) + (P(1) - P'"'))^0) * P'"' + P"'" * C(((P"\\" * P(1)) + (P(1) - P"'"))^0) * P"'");
BareString = C(((P(1) - S' (),='))^1);
OrOp = kw("or") / "or";