Just wondering: does this same idea apply to any language that allows constructs within the code itself to affect the syntactic structure of that code? Take, for example, the following theoretical Haskell expression:
foo =+= bar //|/ baz =+= qux
The parsing of this expression depends on the relative precedence of the two operators and possibily, but not necessarily, on the associativity of =+=
It may also result in an error, if //|/ has higher precedence and =+= is declared as non-associative.
However, the parsing of this does not depend on executing any code in the sense that the OP means, I think. That is, there must be a static declaration somewhere else in the code that says what the properties of these two operators should be. It need not lexically precede the usage, but it has to appear somewhere in the relevant scope, and it cannot be dynamically generated in any way. How would that fit in?
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||