R: Compute the indices that need indention

compute_indent_indices {styler} | R Documentation

## Compute the indices that need indention

### Description

Based on `token`, find the rows in `pd` that need to be indented.

### Usage

    compute_indent_indices(pd, token_opening, token_closing = NULL)

### Arguments

`pd` | A parse table.
`token_opening` | A character vector with tokens that could induce indention for subsequent tokens.
`token_closing` | A character vector with tokens that could terminate indention for previous tokens. If `NULL` (the default), indention should end with the last token in the parse table.

### Details

Two cases are fundamentally different:

- Indention based on operators (e.g '+'), where all subsequent tokens should be indented.

- Indention based on braces (e.g. '('), where just the tokens between the opening and the closing brace have to be indented.

To cover the second case, we need `token_closing` because it cannot be taken for granted that `token_closing` is always the last token in `pd`. For example in if-else expressions, this is not the case and indenting everything between '(' and the penultimate token would result in the wrong formatting.

[Package styler version 1.0.2 Index]