replace_pattern_in: Replace string pattern in text file
In HughParsonage/hutils: Miscellaneous R Functions and Aliases

replace_pattern_in

R Documentation

Replace string pattern in text file

Description

Replace string pattern in text file

Usage

replace_pattern_in(
  file_contents,
  replace,
  basedir = ".",
  dir_recursive = TRUE,
  reader = readLines,
  file_pattern = "\\.(R|r)(nw|md)?$",
  file_contents_perl = TRUE,
  file_contents_fixed = FALSE,
  file_contents_ignore_case = FALSE,
  writer = writeLines
)

Arguments

`file_contents`	Character string containing a regular expression to be matched in the given character vector. Passed to `pattern` in `gsub`.
`replace`	The replacement, passed to `replacement` in `gsub`.
`basedir`	The root of the directory tree in which files will be searched recursively.
`dir_recursive`	(logical, default: `TRUE`) Search within subdirectories of `basedir`?
`reader`	A function, akin to `base::readLines`, the default, that accepts a filename and returns a character vector.
`file_pattern`	A regular expression passed to `list.files(pattern = file.ext)`. By default, `"\.(R\|r)(nw\|md)?$"`, i.e. all R and Sweave files. (Does not have to be a file extension.)
`file_contents_perl`	(logical, default: `TRUE`) Should `file_contents` be interpreted as a `perl` regex?
`file_contents_fixed`	(logical, default: `FALSE`) Should `file_contents` be interpreted as a `fixed` regex?
`file_contents_ignore_case`	(logical, default: `FALSE`) As in `grep`.
`writer`	A function that will rewrite the file from the character vector read in.