documentation of parser function in Source 4

[martin-henz]

adds documentation of parse function in Source §4

[coveralls]

Pull Request Test Coverage Report for Build 1769

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 88.791%

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Totals
Change from base Build 1751:	0.0%
Covered Lines:	2175
Relevant Lines:	2386

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💛 - Coveralls

[thomastanck]

When I try to build this, the margins seem to be set weirdly and the code goes off screen:

Do you know what's going on?

[martin-henz]

I use a package called typearea, and put these two pages in landscape mode so that the righthand column fits onto the page. Maybe a version issue with your LaTeX?

I've installed the result already here:
https://sicp.comp.nus.edu.sg/source/source_4.pdf

Can you compare the result of your built with the installed version?

[thomastanck]

A few minor bugs but should be good afterwards.

[thomastanck]

LGTM