This is an IBM i port of YAJL, a very fast JSON parser/generator created by Lloyd Hilaiel of Mozilla fame.

Using the tool from RPG is described in the following blog post:

You may also be interested in the handout (PDF of Powerpoint slides) for the talk I give on using YAJL from RPG:

For instructions on how to install YAJL, please download the main YAJL file (YAJL.zip, below) and see the README.txt file inside the ZIP file.

Note: Updated March 27, 2014 to fix bugs with un-escaping of escaped strings, and pointer error in yajl_get_number.

Note: Updated April 4, 2014 to fix bug interpreting true/false values.

Note: Updated October 31, 2015 to enable support for escaping solidus and fix bug with yajl_tree_free.

Note: Updated February 24, 2017 to add yajl_stringify() routine.

Note: Updated March 31, 2017 to workaround problems in QtmhWrStout with large JSON buffers.

Note: Updated September 29, 2017 to add yajl_stringifyStr, yajl_copyBufStr and yajl_string_load_tree routines.

Note: Updated March 9, 2018 to add yajl_genFromNode routine.

Note: Updated April 17, 2018 to add support for RPG's DATA-INTO opcode.

Note: Updated May 17, 2018 added additional options to YAJLINTO.

Note: Updated Oct 1, 2018 added *STDIN support to YAJLINTO.

Note: Updated July 29, 2019 added YAJLGEN utility, and ability to write *STDIN data to IFS.

Note: Updated November 25, 2019 added YAJLDTAGEN (DATA-GEN interface), and yajl_addPreformattedPtr routine.

Note: Updated June 8, 2020 added new option "include empty arrays" to YAJLDTAGEN.

Note: Updated Oct 14, 2020 added yajl_clearBuf routine to clear generator buffer, and yajl_addNumF to help format numbers.

Note: Updated Jan 21, 2022 added YAJL_MEMORY_STATUS environment variable. Set it to an IFS path, and YAJLINTO will write a report showing how many objects are allocated in memory when YAJLINTO finishes parsing a document.