Detect Lost Glue Brace in glue and cli Expressions — package_lost_glue

Check whether { and } are balanced in all glue() / glue_data() and cli_*() string arguments within an R file. The file is parsed into an AST, then each string literal that is an argument to a target function is checked with a stack-based brace matcher. Any mismatches are reported with line number and a visual caret (^^^^) marker under the problematic region.

Usage

package_lost_glue_brace(path = NULL, test_included = TRUE, ...)

detect_lost_glue_brace(path = NULL, ...)

Arguments

path: A character string specifying the path to the R file to inspect. If NULL and RStudio is available, the currently active document path is used.
test_included: Whether to include test (test/testthat/*) files in the check.
...: unused

Value

Invisibly returns TRUE if all expressions are balanced, FALSE otherwise. Side-effect messages are emitted via cli::cli.

Functions

package_lost_glue_brace(): Scans all .R files in an R package (and optionally tests/testthat/), aggregated with per-file reporting.

Examples

# \donttest{
file <- tempfile()
writeLines("glue(\"{a\")", file)
detect_lost_glue_brace(file)
#> glue("{a")
#>       ^^
#> ✖ Found 1 line with mismatched braces: 1
# }