Reading Undocumented fortran 77 source code.

From: Brusselator (Brusselator_at_hotmail.com)
Date: 11/28/03 

Date: Fri, 28 Nov 2003 04:26:56 GMT

Hi,
I am trying to read and understand how a program written in fortran 77
works. Actually it is the old open source freeware version of matlab that
can be downloaded form SAL. It caught my fancy since fortran 77 does not
have recursion so I was keen to see how they got the parser /
interpreter implemented. I understand this can be done with a bunch of
stacks, but was interested in seening some more details.

However this source is poorly documented . The biggest problem I am
having is to figure out what each variable stands form (i.e. its
semantic content). Some times this can be made out by context , but
mostly one needs to know the "semantic content" to figure out the "context"

Wonder if anyone has a tip or two on how I may go about this or
if anyone knows this implementation well enough to comment on it.

sincerely
b thomas

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