style_roxygen_example_snippet: Given a code snippet is dont* or run, style it

In krlmlr/styler: Non-Invasive Pretty Printing of R Code

Given a code snippet is dont* or run, style it

Description

Given a code snippet is dont* or run, style it

Usage

style_roxygen_example_snippet(
  code_snippet,
  transformers,
  is_dont,
  base_indention
)

Arguments

code_snippet	A character vector with code to style.
transformers	Passed to cache_make_key() to generate a key.
is_dont	Whether the snippet to process is a dontrun, dontshow, donttest segment or not.
base_indention	Integer scalar indicating by how many spaces the whole output text should be indented. Note that this is not the same as splitting by line and add a base_indention spaces before the code in the case multi-line strings are present. See 'Examples'.

Hierarchy

Styling involves splitting roxygen example code into segments, and segments into snippets. This describes the process for input of parse_transform_serialize_roxygen():

• Splitting code into roxygen example code and other code. Downstream, we are only concerned about roxygen code. See parse_transform_serialize_roxygen().

• Every roxygen example code can have zero or more dontrun / dontshow / donttest sequences. We next create segments of roxygen code examples that contain at most one of these. See style_roxygen_code_example().

• We further split the segment that contains at most one dont* sequence into snippets that are either don* or not. See style_roxygen_code_example_segment().

Finally, that we have roxygen code snippets that are either dont* or not, we style them in style_roxygen_example_snippet() using parse_transform_serialize_r().

krlmlr/styler documentation built on Dec. 12, 2024, 8:36 a.m.