584dd87c70
* Update vendor Signed-off-by: Yong Tang <yong.tang.github@outlook.com> * Add route53 plugin This fix adds route53 plugin so that it is possible to query route53 record through CoreDNS. Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
49 lines
1.4 KiB
Go
49 lines
1.4 KiB
Go
package jmespath
|
|
|
|
import "strconv"
|
|
|
|
// JmesPath is the epresentation of a compiled JMES path query. A JmesPath is
|
|
// safe for concurrent use by multiple goroutines.
|
|
type JMESPath struct {
|
|
ast ASTNode
|
|
intr *treeInterpreter
|
|
}
|
|
|
|
// Compile parses a JMESPath expression and returns, if successful, a JMESPath
|
|
// object that can be used to match against data.
|
|
func Compile(expression string) (*JMESPath, error) {
|
|
parser := NewParser()
|
|
ast, err := parser.Parse(expression)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
jmespath := &JMESPath{ast: ast, intr: newInterpreter()}
|
|
return jmespath, nil
|
|
}
|
|
|
|
// MustCompile is like Compile but panics if the expression cannot be parsed.
|
|
// It simplifies safe initialization of global variables holding compiled
|
|
// JMESPaths.
|
|
func MustCompile(expression string) *JMESPath {
|
|
jmespath, err := Compile(expression)
|
|
if err != nil {
|
|
panic(`jmespath: Compile(` + strconv.Quote(expression) + `): ` + err.Error())
|
|
}
|
|
return jmespath
|
|
}
|
|
|
|
// Search evaluates a JMESPath expression against input data and returns the result.
|
|
func (jp *JMESPath) Search(data interface{}) (interface{}, error) {
|
|
return jp.intr.Execute(jp.ast, data)
|
|
}
|
|
|
|
// Search evaluates a JMESPath expression against input data and returns the result.
|
|
func Search(expression string, data interface{}) (interface{}, error) {
|
|
intr := newInterpreter()
|
|
parser := NewParser()
|
|
ast, err := parser.Parse(expression)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return intr.Execute(ast, data)
|
|
}
|