Kevin Ryde on Sun, 24 Jan 2016 06:37:40 +0100

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gp-inline tests in a document

In the unending battle against errors, I've been using gp to check
formulas and sample values in TeX and elsewhere by writing test
expressions as comments like "% GP-Test 2+2==4".  A gp-inline script
(Perl) extracts and executes.

Tests in with the text help give some confidence to a claimed formula
etc, especially if returning to the text later and being tempted to
rearrange :-).

There's a couple of lines of elisp for passing the expressions to
pariemacs gp subprocess.  That can be any comment too so handy for gp
one-liners as experiments etc elsewhere, eg. in program code.