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world-name: r4wp
Group: #Red ... Red language group [web-public] | ||
DocKimbel: 1-Oct-2012 | Implemented IF and EITHER, I just wanted to share their implementation with you (extract from Red compiler source):: comp-if: does [ comp-expression emit compose [ if (logic-true?) ] comp-sub-block ] comp-either: does [ comp-expression emit compose [ either (logic-true?) ] comp-sub-block comp-sub-block ] Shouldn't be more complex than that, no? ;-) |
world-name: r3wp
Group: !RebGUI ... A lightweight alternative to VID [web-public] | ||
Vincent: 6-Mar-2005 | agree, COPY not needed - just an habit when I modify blocks, but here I did it two times wrong: - the 'draw sub-block is modified, so it should be copy/deep - no 'copy needed with 'make, who does copy/deep | |
Group: Rebol School ... Rebol School [web-public] | ||
Geomol: 6-Feb-2009 | The second argument to parse can be a string, and then parse split up the first argument, or the second argument can be a block of parsing rules. out is just my output block. So the parsing rules go: 1) first any of a sub-block of sub-rules 2) sub-block copy the input string to a point, where two newlines are found, the result in the variable: arg 3) the paranthesis is evaluated (as normal REBOL code), and it append arg (the part of the string, we just copied) to the variable out 4) the parser then skip any number of newlines (2, 3 or more) 5) when the sub-rules are not valid any longer, the input string is copied till the end (and appended to out as before) | |
Group: !REBOL3 Proposals ... For discussion of feature proposals [web-public] | ||
Maxim: 12-Nov-2010 | AFAICT its not lexical since it will properly return to any rule which uses a referenced sub rule via a world as well as a sub-block |