Regexplain Versions Save

• Fix issues with coloring of groups in regexplain gadget when matched groups start and end at the same index, especially when there are zero-length groups (thanks, @HanOostdijk).

• Reduce package size by optimizing images and offloading the screencast gifs to the assets branch.

• Use of knitr is automatically detected when calling view_regex() inside an R Markdown document. The knitr parameter of view_regex() has been removed. Added result_only parameter for interactive viewing. As a side effect, the group coloring CSS is automatically embedded in the HTML output.

• Fix typo in update instructions in update available modal
• Fix addin crash when replacement function is visited but replacement field is not initiated (#8)

• Added "Library" button that opens a dialog to import regex patterns sourced from https://projects.lukehaas.me/regexhub and https://github.com/trinker/qdapRegex. The library is stored in inst/extdata/patterns.json.
• Added "Introduction", "Try These Examples" and "Resources" tabs to the standard gadget Help tab.
• Several bugfixes and tests were added around unicode character escaping within the gadget.
• Enable perl mode by default in gadget (consistent with stringr and most regexes in the wild, but not base R). Write out selected options as comments when not consistent with base R when returning pattern from gadget.
• Rewrote Readme with new screenshots and screencasts.
• Added options regexplain.addin.max_lines and options for debugging gadget inputs.

Version 0.1.5

• Options from Regex tab are extended to Output tab as well. Colored options according to group where they are applied.
• Added a mechanism to announce package updates while this package is on GitHub. Only checked once per R session on the first launch of the gadget.