Escapes special for regex characters conditionally

fixed - Match pattern string as it is within the target vector
begins - Match pattern string as it is in the beggining of the target vector
trim_begins - Match pattern string as it is in the beginning of the target vector ignoring preceding white-spaces
ends - Match pattern string as it is in the end of the target vector
trim_ends - Match pattern string as it is in the end of the target vector ignoring leading white-spaces
exact - Match pattern string exactly (i.e., match equal strings)
trim_exact - Match pattern string exactly (i.e., match equal strings) ignoring surrounding white-spaces
regex - Match regex pattern

Usage

escape_regex_for_types(
  patterns,
  types,
  escape_fixed = FALSE,
  escape_begins = TRUE,
  escape_ends = TRUE,
  escape_all_if_multiple_types = TRUE
)

Arguments

patterns: character vector
types: character vector of the same length as strings with instructions whether and how to to escape regex characters. Options are:
escape_fixed: Whether to escape strings for 'fixed' and 'exact' types in case all types are the same (length(unique(types)) == 1). The "trim_exact" types get trimed if not escaped. Otherwise if types heterogenious
escape_begins: Whether to escape string for 'begins' type
escape_ends: Whether to escape string for 'ends' type
escape_all_if_multiple_types: If types are multiple this applies to all esapes options

Value

string with all special to regex characters escaped