getParenLevel
Script
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export
const
getParenLevel
=
(
grammar
,
index
)
=>
{
let
numOpens
=
0
;
for
(
let
i
=
0
;
i
<
index
;
i
++
)
{
if
(
grammar
[
i
]
==
"["
)
numOpens
++
;
if
(
grammar
[
i
]
==
"]"
)
numOpens
--
;
}
return
numOpens
;
}
;