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operator precedence changed: assignment like operators are supported; escaping of operators with \ is supported

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This commit is contained in:
Araq 2011-11-09 01:42:05 +01:00
commit 68be801f63
7 changed files with 64 additions and 26 deletions
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doc/grammar.txt
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@ -1,7 +1,7 @@
module ::= ([COMMENT] [SAD] stmt)*
comma ::= ',' [COMMENT] [IND]
operator ::= OP1 | OP2 | OP3 | OP4 | OP5 | OP6 | OP7 | OP8 | OP9
operator ::= OP0 | OP1 | OP2 | OP3 | OP4 | OP5 | OP6 | OP7 | OP8 | OP9
| 'or' | 'xor' | 'and'
| 'is' | 'isnot' | 'in' | 'notin' | 'of'
| 'div' | 'mod' | 'shl' | 'shr' | 'not' | '..'
@ -11,7 +11,8 @@ prefixOperator ::= operator
optInd ::= [COMMENT] [IND]
optPar ::= [IND] | [SAD]
lowestExpr ::= orExpr (OP1 optInd orExpr)*
lowestExpr ::= assignExpr (OP0 optInd assignExpr)*
assignExpr ::= orExpr (OP1 optInd orExpr)*
orExpr ::= andExpr (OP2 optInd andExpr)*
andExpr ::= cmpExpr (OP3 optInd cmpExpr)*
cmpExpr ::= sliceExpr (OP4 optInd sliceExpr)*