Is simple query language for go struct data, included JSON query tool.
Constructor and test method, only for use.
package main
import (
"fmt"
"os"
"github.com/kuwa72/matcher"
)
func main() {
query := "a=1"
m, err := matcher.NewMatcher(query) // constructor
if err != nil {
os.Exit(1)
}
m.Debug = true
ctx := matcher.Context{"a": 1}
ret, err := m.Test(&ctx) // check match data and query
if err != nil {
os.Exit(1)
}
fmt.Printf("matched?: %v", ret)
}
Install
go install github.com/kuwa72/matcher/matcher-cli
If input JSON(from stdin) and query(command argument) matched, return 0, otherwise 1.
example.
$ echo '{"a":1,"b":2,"c":"hoge"}' | matcher-cli 'b = 2 and a = 1 and a >= -1 and c = "hoge"'
Dead simple.
Identify Condition Value (Operator Identify Condition Value...) like a = 1 and b = "foo"
- Operators:
AND, OR - Conditions:
=, !=(<>), >, >=, <, <= - Supported value type: Numbers(convert to float), String
Examples see test file: http://github.com/kuwa72/matcher/parser_test.go.
MIT License