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comparison libtommath/tombc/grammar.txt @ 330:5488db2e9e4e

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merge of 332f709a4cb39cde4cedab7c3be89e05f3023067 and ca4ca78b82c5d430c69ce01bf794e8886ce81431
author Matt Johnston <matt@ucc.asn.au>
date Sat, 10 Jun 2006 16:39:40 +0000
parents eed26cff980b
children
comparison
equal deleted inserted replaced
329:8ed0dce45126 330:5488db2e9e4e
1 program := program statement | statement | empty
2 statement := { statement } |
3 identifier = numexpression; |
4 identifier[numexpression] = numexpression; |
5 function(expressionlist); |
6 for (identifer = numexpression; numexpression; identifier = numexpression) { statement } |
7 while (numexpression) { statement } |
8 if (numexpresion) { statement } elif |
9 break; |
10 continue;
11
12 elif := else statement | empty
13 function := abs | countbits | exptmod | jacobi | print | isprime | nextprime | issquare | readinteger | exit
14 expressionlist := expressionlist, expression | expression
15
16 // LR(1) !!!?
17 expression := string | numexpression
18 numexpression := cmpexpr && cmpexpr | cmpexpr \|\| cmpexpr | cmpexpr
19 cmpexpr := boolexpr < boolexpr | boolexpr > boolexpr | boolexpr == boolexpr |
20 boolexpr <= boolexpr | boolexpr >= boolexpr | boolexpr
21 boolexpr := shiftexpr & shiftexpr | shiftexpr ^ shiftexpr | shiftexpr \| shiftexpr | shiftexpr
22 shiftexpr := addsubexpr << addsubexpr | addsubexpr >> addsubexpr | addsubexpr
23 addsubexpr := mulexpr + mulexpr | mulexpr - mulexpr | mulexpr
24 mulexpr := expr * expr | expr / expr | expr % expr | expr
25 expr := -nexpr | nexpr
26 nexpr := integer | identifier | ( numexpression ) | identifier[numexpression]
27
28 identifier := identifer digits | identifier alpha | alpha
29 alpha := a ... z | A ... Z
30 integer := hexnumber | digits
31 hexnumber := 0xhexdigits
32 hexdigits := hexdigits hexdigit | hexdigit
33 hexdigit := 0 ... 9 | a ... f | A ... F
34 digits := digits digit | digit
35 digit := 0 ... 9