Learn R Programming
⚠️There's a newer version (0.56) of this package.Take me there.

xfun (version 0.31)

Supporting Functions for Packages Maintained by 'Yihui Xie'

Description

Miscellaneous functions commonly used in other packages maintained by 'Yihui Xie'.

Copy Link

Version

Install

install.packages('xfun')

Monthly Downloads

1,370,939

Version

0.31

License

MIT + file LICENSE

Issues

2

Pull Requests

1

Stars

154

Forks

31

Maintainer

Yihui Xie

Last Published

May 10th, 2022

Functions in xfun (0.31)

dir_create

Create a directory recursively by default
magic_path

Find a file or directory under a root directory
numbers_to_words

Convert numbers to English words
in_dir

Evaluate an expression under a specified working directory
dir_exists

Test the existence of files and directories
mark_dirs

Mark some paths as directories
install_dir

Install a source package from a directory
optipng

Run OptiPNG on all PNG files under a directory
file_string

Read a text file and concatenate the lines by '\n'
cache_rds

Cache the value of an R expression to an RDS file
base64_uri

Generate the Data URI for a file
crandalf_check

Submit check jobs to crandalf
same_path

Test if two paths are the same after they are normalized
proj_root

Return the (possible) root directory of a project
format_bytes

Format numbers of bytes using a specified unit
process_file

Read a text file, process the text with a function, and write the text back
embed_file

Embed a file, multiple files, or directory on an HTML page
protect_math

Protect math expressions in pairs of backticks in Markdown
submit_cran

Submit a source package to CRAN
prose_index

Find the indices of lines in Markdown that are prose (not code blocks)
stringsAsStrings

Set the global option options(stringsAsFactors = FALSE) inside a parent function and restore the option after the parent function exits
grep_sub

Perform replacement with gsub() on elements matched from grep()
gsub_file

Search and replace strings in files
del_empty_dir

Delete an empty directory
exit_call

Call on.exit() in a parent function
base_pkgs

Get base R package names
session_info

An alternative to sessionInfo() to print session information
github_releases

Get the tags of Github releases of a repository
from_root

Get the relative path of a path in a project relative to the current working directory
try_error

Try an expression and see if it throws an error
try_silent

Try to evaluate an expression silently
is_blank

Test if a character vector consists of blank strings
is_ascii

Check if a character vector consists of entirely ASCII characters
existing_files

Find file paths that exist
isFALSE

Test if an object is identical to FALSE
install_github

An alias of remotes::install_github()
read_bin

Read all records of a binary file as a raw vector by default
read_utf8

Read / write files encoded in UTF-8
file_ext

Manipulate filename extensions
url_filename

Extract filenames from a URLs
valid_syntax

Check if the syntax of the code is valid
native_encode

Try to use the system native encoding to represent a character vector
msg_cat

Generate a message with cat()
normalize_path

Normalize paths
relative_path

Get the relative path of a path relative to a directory
news2md

Convert package news to the Markdown format
is_R_CMD_check

Some utility functions for checking packages
rename_seq

Rename files with a sequential numeric prefix
split_source

Split source lines into complete expressions
strict_list

Strict lists
is_abs_path

Test if paths are relative or absolute
system3

Run system2() and mark its character output as UTF-8 if appropriate
is_windows

Test for types of operating systems
is_sub_path

Test if a path is a subpath of a dir
rest_api

Get data from a REST API
is_web_path

Test if a path is a web path
parse_only

Parse R code and do not keep the source
tinify

Use the Tinify API to compress PNG and JPEG images
retry

Retry calling a function for a number of times
set_envvar

Set environment variables
pkg_attach

Attach or load packages, and automatically install missing packages if requested
raw_string

Print a character vector in its raw form
read_all

Read all text files and concatenate their content
proc_kill

Kill a process and (optionally) all its child processes
split_lines

Split a character vector by line breaks
rstudio_type

Type a character vector into the RStudio source editor
rev_check

Run R CMD check on the reverse dependencies of a package
upload_ftp

Upload to an FTP server via curl
url_accessible

Test if a URL is accessible
tree

Turn the output of str() into a tree diagram
tojson

A simple JSON serializer
broken_packages

Find out broken packages and reinstall them
Rscript_call

Call a function in a new R session via Rscript()
bump_version

Bump version numbers
Rscript

Run the commands Rscript and R CMD
bg_process

Start a background process
attr

Obtain an attribute of an object without partial matching
base64_encode

Encode/decode data into/from base64 encoding.
do_once

Perform a task once in an R session
download_file

Try various methods to download a file