shinyStep: User-Editable R Functions in 'Shiny' Apps with a Step Debugger

A pair of 'Shiny' modules that let end users of a 'Shiny' application author their own R functions directly in the browser. Host apps can expose these modules as extension points where user-supplied code augments or replaces built-in logic, without requiring users to modify the app's source. Each module embeds an 'Ace' editor with a structured argument table, an in-frame R console rooted in the paused function's local environment, and a step debugger that handles for, while, repeat, and if/else blocks at any nesting depth. Two module flavours are provided: solo editors for testing a function in isolation with literal argument values, and embedded editors for pausing a function mid-execution inside a larger host program.

Version:	0.5.1
Imports:	shiny (≥ 1.7.0), shinyAce (≥ 0.4.0)
Suggests:	testthat (≥ 3.0.0)
Published:	2026-05-29
DOI:	10.32614/CRAN.package.shinyStep
Author:	Han Zhang [aut, cre]
Maintainer:	Han Zhang <zhangh.ustc at gmail.com>
BugReports:	https://github.com/zhangh12/shinyStep/issues
License:	MIT + file LICENSE
URL:	https://github.com/zhangh12/shinyStep
NeedsCompilation:	no
CRAN checks:	shinyStep results

Documentation:

Reference manual:

shinyStep.html , shinyStep.pdf

Downloads:

Package source:	shinyStep_0.5.1.tar.gz
Windows binaries:	r-devel: shinyStep_0.5.1.zip, r-release: shinyStep_0.5.1.zip, r-oldrel: shinyStep_0.5.1.zip
macOS binaries:	r-release (arm64): shinyStep_0.5.1.tgz, r-oldrel (arm64): shinyStep_0.5.1.tgz, r-release (x86_64): shinyStep_0.5.1.tgz, r-oldrel (x86_64): shinyStep_0.5.1.tgz

Linking:

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