Find Files with Text that Matches a Pattern

Find files in a path that contains text that matches a pattern. The files in the given path can also be optionally subset based on a pattern of its own before the files are read into the caller environment, useful feature for cases where the path contains a mix of different file types and only text files need to be read.

grepl_text_files(
  path = ".",
  file_pattern = NULL,
  all.files = FALSE,
  recursive = FALSE,
  text_pattern,
  ignore.case = TRUE,
  perl = FALSE,
  fixed = FALSE,
  useBytes = FALSE
)

Arguments

path	a character vector of full path names; the default corresponds to the working directory, getwd(). Tilde expansion (see path.expand) is performed. Missing values will be ignored. Elements with a marked encoding will be converted to the native encoding.
all.files	a logical value. If FALSE, only the names of visible files are returned. If TRUE, all file names will be returned.
recursive	logical. Should the listing recurse into directories?
ignore.case	if FALSE, the pattern matching is case sensitive and if TRUE, case is ignored during matching.
perl	logical. Should Perl-compatible regexps be used?
fixed	logical. If TRUE, pattern is a string to be matched as is. Overrides all conflicting arguments.
useBytes	logical. If TRUE the matching is done byte-by-byte rather than character-by-character. See ‘Details’.