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add query operators

This commit is contained in:
Josh Baker 2016-12-02 11:53:14 -07:00 committed by GitHub
parent 7afd24f7a2
commit 1a8de7c426
1 changed files with 13 additions and 9 deletions
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22
README.md
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@ -66,9 +66,9 @@ The dot and wildcard characters can be escaped with '\'.
"children": ["Sara","Alex","Jack"],
"fav.movie": "Deer Hunter",
"friends": [
{"first": "Dale", "last": "Murphy"},
{"first": "Roger", "last": "Craig"},
{"first": "Jane", "last": "Murphy"}
{"first": "Dale", "last": "Murphy", "age": 44},
{"first": "Roger", "last": "Craig", "age": 68},
{"first": "Jane", "last": "Murphy", "age": 47}
]
}
```
@ -84,13 +84,15 @@ The dot and wildcard characters can be escaped with '\'.
"friends.#.first" >> ["Dale","Roger","Jane"]
"friends.1.last" >> "Craig"
```
To query an array for the first match:
You can also query an array for the first match by using `#[...]`, or find all matches with `#[...]#`.
Queries support the `==`, `!=`, `<`, `<=`, `>`, `>=` comparison operators and the simple pattern matching `%` operator.
```
`friends.#[last="Murphy"].first` >> "Dale"
```
To query an array for all matches:
```
`friends.#[last="Murphy"]#.first` >> ["Dale","Jane"]
friends.#[last=="Murphy"].first >> "Dale"
friends.#[last=="Murphy"]#.first >> ["Dale","Jane"]
friends.#[age>45]#.last >> ["Craig","Murphy"]
friends.#[first%"D*"].last >> "Murphy"
```
## Result Type
@ -129,6 +131,8 @@ result.Bool() bool
result.Array() []gjson.Result
result.Map() map[string]gjson.Result
result.Get(path string) Result
result.ForEach(iterator func(key, value Result) bool)
result.Less(token Result, caseSensitive bool) bool
```
The `result.Value()` function returns an `interface{}` which requires type assertion and is one of the following Go types: