gsub_file: Search and replace strings in files

In xfun: Supporting Functions for Packages Maintained by 'Yihui Xie'

Search and replace strings in files

Description

These functions provide the "file" version of gsub(), i.e., they perform searching and replacement in files via gsub().

Usage

gsub_file(file, ..., rw_error = TRUE)

gsub_files(files, ...)

gsub_dir(..., dir = ".", recursive = TRUE, ext = NULL, mimetype = ".*")

gsub_ext(ext, ..., dir = ".", recursive = TRUE)

Arguments

file	Path of a single file.
...	For gsub_file(), arguments passed to gsub(). For other functions, arguments passed to gsub_file(). Note that the argument x of gsub() is the content of the file.
rw_error	Whether to signal an error if the file cannot be read or written. If FALSE, the file will be ignored (with a warning).
files	A vector of file paths.
dir	Path to a directory (all files under this directory will be replaced).
recursive	Whether to find files recursively under a directory.
ext	A vector of filename extensions (without the leading periods).
mimetype	A regular expression to filter files based on their MIME types, e.g., '^text/' for plain text files.

Note

These functions perform in-place replacement, i.e., the files will be overwritten. Make sure you backup your files in advance, or use version control!

Examples

library(xfun)
f = tempfile()
writeLines(c("hello", "world"), f)
gsub_file(f, "world", "woRld", fixed = TRUE)
readLines(f)

xfun documentation built on Nov. 1, 2024, 1:06 a.m.