Add definitions with -D and -s #10

Merged

cxw42 merged 17 commits intointerpreters:masterfrom

Jan 8, 2018

Commits on May 12, 2017

Definitions with -D; debug with -E
Chris White
committed
Improved package-name extraction [minor]
Chris White
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Check -D key names [minor]
Chris White
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Added basic :ifdef, :else, :endif
Chris White
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Added basic :if, :elsif
Chris White
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Improved error reporting in :if, :elsif.
Chris White
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Added :undef
Chris White
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Added :define
Chris White
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Added possessive quantifiers to ExecuteCommand REs
Chris White
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Updated and expanded README.md
Chris White
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Added %Defs holding -D values at generation time
Chris White
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Exit with a non-zero error code on eval failure
Chris White
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Perl comments now permitted in code blocks.
Chris White
committed

Commits on Aug 4, 2017

Added textual substitution of -D defines
Chris White
committed

Commits on Oct 10, 2017

Added initial tests of -s
Chris White
committed

Commits on Dec 25, 2017

Added %Sets at generation time; updated docs.
Chris White
committed

Commits on Jan 6, 2018

Added <?:ifndef?>
Chris White
committed