collapseos/blk/360

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( strings being sent to parse routines are always null
terminated )
: _pc ( a -- n f, parse character )
( apostrophe is ASCII 39 )
DUP 1+ C@ 39 = OVER 3 + C@ 39 = AND ( a f )
NOT IF 0 EXIT THEN ( a 0 )
( surrounded by apos, good, return )
2+ C@ 1 ( n 1 )
;