[ 源代码： jsmn ]
软件包：libjsmn-dev（1.1.0-2）
header-only JSON library
Most JSON parsers offer you a bunch of functions to load JSON data, parse it and extract any value by its name. jsmn proves that checking the correctness of every JSON packet or allocating temporary objects to store parsed JSON fields often is an overkill.
jsmn is designed to be robust (it should work fine even with erroneous data), fast (it should parse data on the fly), portable (no superfluous dependencies or non-standard C extensions). And of course, simplicity is a key feature - simple code style, simple algorithm, simple integration into other projects.
Features
* compatible with C89 * no dependencies (even libc!) * highly portable (tested on x86/amd64, ARM, AVR) * about 200 lines of code * extremely small code footprint * API contains only 2 functions * no dynamic memory allocation * incremental single-pass parsing * library code is covered with unit-tests