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operator.go
51 lines (41 loc) · 1.01 KB
/
operator.go
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package operator
// Operator is string alias that represents selection operators enum
type Operator string
const (
// Equal stands for ==
Equal Operator = ""
// MoreEqual stands for >=
MoreEqual Operator = ">="
// LessEqual stands for <=
LessEqual Operator = "<="
// NotEqual stands for !
NotEqual Operator = "!"
// More stands for >
More Operator = ">"
// Less stands for <
Less Operator = "<"
)
//ReferenceSign defines the operator for anchor reference
const ReferenceSign Operator = "$()"
// GetOperatorFromStringPattern parses opeartor from pattern
func GetOperatorFromStringPattern(pattern string) Operator {
if len(pattern) < 2 {
return Equal
}
if pattern[:len(MoreEqual)] == string(MoreEqual) {
return MoreEqual
}
if pattern[:len(LessEqual)] == string(LessEqual) {
return LessEqual
}
if pattern[:len(More)] == string(More) {
return More
}
if pattern[:len(Less)] == string(Less) {
return Less
}
if pattern[:len(NotEqual)] == string(NotEqual) {
return NotEqual
}
return Equal
}