Yajlish - Rust event-based JSON parser
Write tools to parse json when you don't know its exact structure and can't load it all into memory.
- based loosely on yajl
- includes a JSON -> ndjson converter with the feature "ndjson"
Docs
Libraries you probably need instead of this library
Usage
Suppose you wanted to parse the count of all JSON object keys that are named 'foo'.
use yajlish::{Context, Handler, Status};
pub struct FooCountHandler {
count: usize,
}
impl Handler for FooCountHandler {
fn handle_map_key(&mut self, _ctx: &Context, key: &str) -> Status {
if key == "\"foo\"" {
self.count += 1;
}
Status::Continue
}
fn handle_null(&mut self, _ctx: &Context) -> Status {
Status::Continue
}
fn handle_bool(&mut self, _ctx: &Context, boolean: bool) -> Status {
Status::Continue
}
fn handle_double(&mut self, _ctx: &Context, val: f64) -> Status {
Status::Continue
}
fn handle_int(&mut self, _ctx: &Context, val: i64) -> Status {
Status::Continue
}
fn handle_string(&mut self, _ctx: &Context, val: &str) -> Status {
Status::Continue
}
fn handle_start_map(&mut self, _ctx: &Context) -> Status {
Status::Continue
}
fn handle_start_array(&mut self, _ctx: &Context) -> Status {
Status::Continue
}
fn handle_end_map(&mut self, _ctx: &Context) -> Status {
Status::Continue
}
fn handle_end_array(&mut self, _ctx: &Context) -> Status {
Status::Continue
}
}
License
This library is licensed under the Apache 2.0 License.