Conditionally suppress warnings or messages — suppress

Evaluates an expression while selectively suppressing warnings or messages based on their content.

Usage

suppress_warnings_if(
  expr,
  msg_contains = "",
  fixed = TRUE,
  perl = !fixed,
  ignore.case = FALSE,
  negate = FALSE,
  classes = "warning"
)

suppress_messages_if(
  expr,
  msg_contains = "",
  fixed = TRUE,
  perl = !fixed,
  ignore.case = FALSE,
  negate = FALSE,
  classes = "message"
)

Arguments

expr: The expression to evaluate.
msg_contains: A string to match against the message. Defaults to an empty string (matches all messages).
fixed: A logical indicating whether msg_contains should be matched as a fixed string..
perl: A logical indicating whether Perl-compatible regular expressions should be used for msg_contains.
ignore.case: A logical indicating whether the case of msg_contains should be ignored.
negate: A logical indicating whether the message matching should be negated (e.g., suppress messages that do not match msg_contains).
classes: A character vector of warning or message classes to suppress.

Value

The result of evaluating expr, with specified warnings or messages suppressed.

Examples

# Suppress warnings containing specific text
suppress_warnings_if(warning("This is a warning"), "This")

# Suppress messages unless they contain specific text
suppress_messages_if(
  message("13 files processed"),
  "\\d{2, }",
  fixed = FALSE,
  negate = TRUE
)