a685e3fc98
Vndr has a simpler configuration and allows pointing to forked packages. Additionally other docker projects are now using vndr making vendoring in distribution more consistent. Updates letsencrypt to use fork. No longer uses sub-vendored packages. Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
49 lines
1.4 KiB
Go
49 lines
1.4 KiB
Go
package jmespath
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import "strconv"
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// JmesPath is the epresentation of a compiled JMES path query. A JmesPath is
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// safe for concurrent use by multiple goroutines.
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type JMESPath struct {
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ast ASTNode
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intr *treeInterpreter
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}
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// Compile parses a JMESPath expression and returns, if successful, a JMESPath
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// object that can be used to match against data.
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func Compile(expression string) (*JMESPath, error) {
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parser := NewParser()
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ast, err := parser.Parse(expression)
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if err != nil {
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return nil, err
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}
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jmespath := &JMESPath{ast: ast, intr: newInterpreter()}
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return jmespath, nil
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}
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// MustCompile is like Compile but panics if the expression cannot be parsed.
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// It simplifies safe initialization of global variables holding compiled
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// JMESPaths.
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func MustCompile(expression string) *JMESPath {
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jmespath, err := Compile(expression)
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if err != nil {
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panic(`jmespath: Compile(` + strconv.Quote(expression) + `): ` + err.Error())
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}
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return jmespath
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}
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// Search evaluates a JMESPath expression against input data and returns the result.
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func (jp *JMESPath) Search(data interface{}) (interface{}, error) {
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return jp.intr.Execute(jp.ast, data)
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}
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// Search evaluates a JMESPath expression against input data and returns the result.
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func Search(expression string, data interface{}) (interface{}, error) {
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intr := newInterpreter()
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parser := NewParser()
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ast, err := parser.Parse(expression)
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if err != nil {
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return nil, err
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}
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return intr.Execute(ast, data)
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}
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