File psl-1983/3-1/help/pcheck.doc from the latest check-in

PCHECK.RED				MLG, 10 June 1982
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PCHECK will READ a .SL file, printing some of the top-level of each
S-expression.  It is meant to survey the file, and if the file has
unbalanced parensthesis, will show where things get confused.

To use:
	LOAD PCHECK;
	PCHECK "foo.sl";