Sets the maximum size for the backtrack stack
Sets the maximum size for the backtrack stack used by LPeg to track calls and choices. Most well-written patterns need little backtrack levels and therefore you seldom need to change this maximum; but a few useful patterns may need more space. Before changing this maximum you should try to rewrite your pattern to avoid the need for extra space.
See Also ...
lpeg.B - Matches patt n characters behind the current position, consuming no input
Lua bc (big number) functions
(Help topic: lua=lpeg.setmaxstack)
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