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janssonr  

Strict JSON Encoding and Decoding via the 'Jansson' C Library
View on CRAN: Click here


Download and install janssonr package within the R console
Install from CRAN:
install.packages("janssonr")

Install from Github:
library("remotes")
install_github("cran/janssonr")

Install by package version:
library("remotes")
install_version("janssonr", "0.1.2")



Attach the package and use:
library("janssonr")
Maintained by
Troy Hernandez
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2026-10-05
Latest Update: 2026-10-05
Description:
An R-safe profile of RFC 8259 JSON: parsing and generation backed by the 'Jansson' C library, linked as a system library where one is available and compiled from the bundled sources otherwise. The parser rejects, with classed conditions carrying line, column, and byte position: malformed or truncated input, trailing content, duplicate object keys at any depth, invalid UTF-8, escapes encoding a null character, reals overflowing double, and integer literals whose magnitude exceeds 2^53, the range within which a double represents every integer exactly. Number literals with a fraction or exponent convert by ordinary correctly rounded IEEE 754 double conversion. Objects decode to named lists in key order, arrays to unnamed lists, and scalars to length-one vectors. The encoder maps named lists to objects in insertion order, unnamed lists to arrays, guarantees that every finite double, signed zero included, round-trips to the exact same value (whole-number doubles are written as integers), and refuses values with no faithful JSON representation (NA, NaN, infinities, named atomic vectors, classed objects) instead of guessing. No R package dependencies.
How to cite:
Troy Hernandez (2026). janssonr: Strict JSON Encoding and Decoding via the 'Jansson' C Library. R package version 0.1.2, https://cran.r-project.org/web/packages/janssonr. Accessed 13 Oct. 2026.
Previous versions and publish date:
(2026-09-28 20:20), 0.1.2 (2026-09-12 11:00)
Other packages that cited janssonr R package
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Complete documentation for janssonr
Functions, R codes and Examples using the janssonr R package
Full janssonr package functions and examples
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