yajl.v120.dyn-rt.static

From project website Features Simple Interface Largely because YAJL is event driven, the interface is very concise object oriented C. The interface is not cluttered with data representation, that bit is left up to higher level code. Indeed it should be possible to port most existing JSON libraries onto YAJL if so desired. Stream parsing YAJL remembers all state required to support restarting parsing. This allows parsing to occur incrementally as data is read off a disk or network. Fast A second motivation for writing YAJL, was that many available free JSON parsers fall over on large or complex inputs. YAJL is careful to minimize memory copying and input re-scanning when possible. The result is a parser that should be fast enough for most applications or tunable for any application. On my mac pro (2.66 ghz) it takes 1s to verify a 60meg json file. Minimizing that same file with json_reformat takes 4s. Low resource consumption Largely because YAJL deals with streams, it's possible to parse JSON in low memory environments. Oftentimes with other parsers an application must hold both the input text and the memory representation of the tree in memory at one time. With YAJL you can incrementally read the input stream and hold only the in memory representation. Or for filtering or validation tasks, it's not required to hold the entire input text in memory.


Keywords
JSON, yajl, native, CoApp, nativepackage
License
ISC
Install
Install-Package yajl.v120.dyn-rt.static -Version 2.1.1

Documentation

**********************************************************************
        This is YAJL 2.  For the legacy version of YAJL see
              https://github.com/lloyd/yajl/tree/1.x
**********************************************************************

Welcome to Yet Another JSON Library (YAJL)

## Why does the world need another C library for parsing JSON?  

Good question.  In a review of current C JSON parsing libraries I was 
unable to find one that satisfies my requirements.  Those are, 
0. written in C
1. portable
2. robust -- as close to "crash proof" as possible
3. data representation independent
4. fast
5. generates verbose, useful error messages including context of where
   the error occurs in the input text.
6. can parse JSON data off a stream, incrementally
7. simple to use
8. tiny

Numbers 3, 5, 6, and 7 were particularly hard to find, and were what 
caused me to ultimately create YAJL.  This document is a tour of some
of the more important aspects of YAJL.

## YAJL is Free.

Permissive licensing means you can use it in open source and
commercial products alike without any fees.  My request beyond the
licensing is that if you find bugs drop me a email, or better yet,
fork and fix.

Porting YAJL should be trivial, the implementation is ANSI C.  If you
port to new systems I'd love to hear of it and integrate your patches.

## YAJL is data representation independent.

BYODR!  Many JSON libraries impose a structure based data representation
on you.  This is a benefit in some cases and a drawback in others.
YAJL uses callbacks to remain agnostic of the in-memory representation.
So if you wish to build up an in-memory representation, you may do so
using YAJL, but you must bring the code that defines and populates the
in memory structure.

This also means that YAJL can be used by other (higher level) JSON
libraries if so desired.

## YAJL supports stream parsing

This means you do not need to hold the whole JSON representation in
textual form in memory.  This makes YAJL ideal for filtering projects,
where you're converting YAJL from one form to another (i.e. XML).  The
included JSON pretty printer is an example of such a filter program.

## YAJL is fast

Minimal memory copying is performed.  YAJL, when possible, returns
pointers into the client provided text (i.e. for strings that have no
embedded escape chars, hopefully the common case).  I've put a lot of
effort into profiling and tuning performance, but I have ignored a
couple possible performance improvements to keep the interface clean,
small, and flexible.  My hope is that YAJL will perform comparably to
the fastest JSON parser out there.

YAJL should impose both minimal CPU and memory requirements on your
application.

## YAJL is tiny.

Fat free.  No whip.

enjoy,
Lloyd - July, 2007