The Fortress Language Specification - CiteSeerX

Appendix F
Operator Precedence, Chaining, and
Enclosure
This appendix contains the detailed rules for which Unicode 5.0 characters may be used as operators, which operators
form enclosing pairs, which operators may be chained, and what precedence relationships exist among the various
operators. (If no precedence relationship is stated explicitly for any given pair of operators, then there is no precedence
relationship between those two operators. Remember that precedence is not transitive in Fortress.)
In each of the character lists below, each line gives the Unicode codepoint, the full Unicode 5.0 name, an indication of
what the character looks like in TEX (if possible), then any alternate names or ASCII shorthand for the character.
F.1 Bracket Pairs for Enclosing Operators
Here are the bracket pairs that may be used as enclosing operators. Note that there is one group of four brackets;
within that group, either left bracket may be paired with either right bracket to form an enclosing operator.
U+005B LEFT SQUARE BRACKET [ [
U+005D RIGHT SQUARE BRACKET ] ]
U+007B LEFT CURLY BRACKET { {
U+007D RIGHT CURLY BRACKET } }
U+2045 LEFT SQUARE BRACKET WITH QUILL [./
U+2046 RIGHT SQUARE BRACKET WITH QUILL /.]
U+2308 LEFT CEILING ⌈ |/
U+2309 RIGHT CEILING ⌉ \|
U+230A LEFT FLOOR ⌊ |\
U+230B RIGHT FLOOR ⌋ /|
U+27C5 LEFT S-SHAPED BAG DELIMITER |.\
U+27C6 RIGHT S-SHAPED BAG DELIMITER /.|
U+27E8 MATHEMATICAL LEFT ANGLE BRACKET 〈
U+27EA MATHEMATICAL LEFT DOUBLE ANGLE BRACKET 〈〈
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