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slices are first class citizens

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Araq 2011-04-22 10:53:43 +02:00
commit 8dda362fa6
12 changed files with 177 additions and 127 deletions
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doc/grammar.txt
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@ -1,26 +1,27 @@
module ::= ([COMMENT] [SAD] stmt)*
comma ::= ',' [COMMENT] [IND]
operator ::= OP0 | OR | XOR | AND | OP3 | OP4 | OP5 | OP6 | OP7
operator ::= OP1 | OP2 | OP3 | OP4 | OP5 | OP6 | OP7 | OP8 | OP9
| 'or' | 'xor' | 'and'
| 'is' | 'isnot' | 'in' | 'notin'
| 'div' | 'mod' | 'shl' | 'shr' | 'not'
| 'div' | 'mod' | 'shl' | 'shr' | 'not' | '..'
prefixOperator ::= OP0 | OP3 | OP4 | OP5 | OP6 | OP7 | 'not'
prefixOperator ::= operator
optInd ::= [COMMENT] [IND]
optPar ::= [IND] | [SAD]
lowestExpr ::= otherExpr ('..' optInd otherExpr)*
otherExpr ::= orExpr (OP0 optInd orExpr)*
orExpr ::= andExpr (OR | 'xor' optInd andExpr)*
andExpr ::= cmpExpr ('and' optInd cmpExpr)*
cmpExpr ::= ampExpr (OP3 | 'is' | 'isnot' | 'in' | 'notin' optInd ampExpr)*
ampExpr ::= plusExpr (OP4 optInd plusExpr)*
plusExpr ::= mulExpr (OP5 optInd mulExpr)*
mulExpr ::= dollarExpr (OP6 | 'div' | 'mod' | 'shl' | 'shr' optInd dollarExpr)*
dollarExpr ::= primary (OP7 optInd primary)*
lowestExpr ::= orExpr (OP1 optInd orExpr)*
orExpr ::= andExpr (OP2 optInd andExpr)*
andExpr ::= cmpExpr (OP3 optInd cmpExpr)*
cmpExpr ::= sliceExpr (OP4 optInd sliceExpr)*
sliceExpr ::= ampExpr (OP5 optInd ampExpr)*
ampExpr ::= plusExpr (OP6 optInd plusExpr)*
plusExpr ::= mulExpr (OP7 optInd mulExpr)*
mulExpr ::= dollarExpr (OP8 optInd dollarExpr)*
dollarExpr ::= primary (OP9 optInd primary)*
indexExpr ::= '..' [expr] | expr ['=' expr]
indexExpr ::= expr ['=' expr]
castExpr ::= 'cast' '[' optInd typeDesc optPar ']' '(' optInd expr optPar ')'
addrExpr ::= 'addr' '(' optInd expr optPar ')'
@ -120,7 +121,7 @@ caseStmt ::= 'case' expr [':'] ('of' exprList ':' stmt)*
('elif' expr ':' stmt)*
['else' ':' stmt]
whileStmt ::= 'while' expr ':' stmt
forStmt ::= 'for' symbol (comma symbol)* 'in' expr ['..' expr] ':' stmt
forStmt ::= 'for' symbol (comma symbol)* 'in' expr ':' stmt
exceptList ::= [qualifiedIdent (comma qualifiedIdent)*]
tryStmt ::= 'try' ':' stmt