color_brackets: Colored brackets

In gaborcsardi/prettycode: Pretty Print R Code in the Terminal

Colored brackets

Description

Add color to brackets. Brackets will be coloured consecutively with the colors provided in color_seq by scope.

Usage

color_brackets(x, color_seq = list(yellow, blue, cyan))

Arguments

x	a character vector of brackets consisting of a valid sequence of any of the following: '[[', '[', ']', '(', ')', '{', '}'
color_seq	a list of functions that take and return a character scalar. The ordering defines the sequence of color functions to apply to a given scope level. Color functions are recycled when the scope level exceeds the length of color_seq

Details

Meant for coloring brackets encountered within highlight. Note that occurrences of 'orphan' brackets are not taken into account mainly due to the fact that cases such as

foo <- function(x){ `[[`(x, 1) }

will either be converted to

foo <- function(x){ x[[1]] }

before the brackets are coloured if passed in as highlight(deparse(foo)) or will be identified as a 'SYMBOL_FUNCTION_CALL' token instead of 'LBB' if passed in as

highlight("foo <- function(x){ `[[`(x, 1) }")

Similarly, invalid code that would lead to orphaned brackets is not taken into account as this would be caught before hand in highlight.

gaborcsardi/prettycode documentation built on Nov. 10, 2023, 9:58 a.m.