base64_decode() to decode data from the base64 encoding (thanks, @wush978, #31).Added a new function tree(), which is based on str() in base R, but changes the output of str() into a tree diagram to make it easier to understand nested data structures.
Added a new function base64_encode() to encode data into the base64 encoding (thanks, @wush978, #27).
Added a new function base64_uri() to generate the Data URI (or Data URL) for a file.
<!-- --> are not longer recognized as code blocks but prose (thanks, @jarauh, #25).cache_rds() function can invalidate the cache automatically when the code passed to its expr argument has changed. Two new arguments, hash and clean were added to this function to make it more useful and powerful. See the help page ?xfun::cache_rds() for more information.Added a new function cache_rds() to cache an R expression to a *.rds file.
Added a new function Rscript_call() to call a function (with arguments) in a new R session via the command Rscript.
The recheck argument of rev_check() can take a vector of package names, and only these packages will be checked. See ?xfun::rev_check for more details.
split_lines().read_utf8() will read the file with options(encoding = 'native.enc') and ignore user’s setting such as options(encoding = 'UTF-8') (#21).as_strict_list() to convert an existing object to a strict list without wrapping it in another list if the object already is of type list (in contrast to how strict_list() behaves) (thanks, @salim-b, #20).rename_seq() to rename files to add an incremental numeric prefix to the filenames, e.g., rename a.txt, b.txt, c.txt to 1-a.txt, 2-b.txt, 3-c.txt.xfun::write_utf8(NULL) is equivalent to xfun::write_utf8(character(0)) now (thanks, @schloerke, yihui/knitr#1714).loadable() is quiet with R 3.6.0 (https://stat.ethz.ch/pipermail/r-devel/2019-May/077774.html).... argument to same_path() to pass additional arguments to normalize_path().warn argument in prose_index() failed to suppress warnings.Added functions upload_ftp() and upload_win_builder() to upload files to FTP servers.
Added a function stringsAsStrings() (see its help page for details).
Added an argument warn to prose_index() to suppress the warning when code fences are not balanced.
prose_index() recognizes double backticks as code fences (thanks, @shrektan, #14 #15).Added functions embed_file(), embed_dir(), and embed_files() to embed files in an HTML output file (e.g., from R Markdown), so that the files can be directly downloaded from the web browser. One use case is to call one of these functions in an R code chunk of an Rmd document to embed the Rmd source document or data files in the HTML output, so readers can download them.
Added a new argument message to pkg_attach(), so you can suppress package startup messages via xfun::pkg_attach(..., message = FALSE) or set the global option options(xfun.pkg_attach.message = FALSE) (thanks, @wch, yihui/knitr#1583).
The argument rw_error was moved from gsub_dir() to gsub_file() (gsub_dir(rw_error = ...) will still work).
is_ascii() now returns NA for NA_character_ (thanks, @shrektan, #8 #9).
Added a new functions download_file() to try various methods to download a file.
Added a new function is_ascii() to test if a character vector only consists of ASCII characters.
Added a new function numbers_to_words() to convert numbers to English words (thanks, @daijiang, #3).
Added a new_session argument to loadable().
Added new functions gsub_file(), gsub_files(), gsub_dir(), and gsub_ext() to replace strings in files.
Added new functions Rscript and Rcmd as wrappers of system2('Rscript') and system2('R', 'CMD'), respectively.
Added a new function install_dir() to install a source package from a directory.
Added a new function file_string() to read a text file (encoded in UTF-8) and return its content a single character string (lines concatenated by \n).
Added a new function raw_string() to print a character vector in its “raw” form using cat(..., sep = '\n') instead of print(), because the latter may introduce [1], “extra” double quotes, and escape sequences, which are not very human-readable.
Added a new function session_info() as an alternative to sessionInfo().
Added a new function rev_check() to run R CMD check on the reverse dependencies of a package, and a corresponding helper function compare_Rcheck() for showing the differences in logs with the CRAN version and the current version of the package, respectively.
Added new functions for dealing with Markdown text: prose_index() returns the line indices of text that is prose (not code blocks), and protect_math() protects math expressions in Markdown in backticks.
Added an error argument to read_utf8() to signal an error if the file is not encoded in UTF-8.
attr() as an abbreviation of base::attr(exact = TRUE).
file_ext(), sans_ext(), and with_ext() to manipulate extensions in filenames.
in_dir() to evaluate an R expression in a directory.
isFALSE() as an abbreviation of identical(x, FALSE).
is_windows(), is_macos(), is_linux(), and is_unix() to test operating systems.
native_encode() to try to encode a character vector in the native encoding.
normalize_path() as an abbreviation of normalizePath(winslash = '/', mustWork = FALSE).
optipng() to run the command optipng to optimize all PNG files under a directory.
parse_only() parses R code without keeping the source references.
pkg_attach() and pkg_load() to attach and load a vector of packages, respectively (and optionally, install the missing packages).
read_utf8() and write_utf8() to read and write UTF-8 files, respectively.
same_path() to test if two paths are the same.
strict_list() is a version of list() that disables partial matching of the $ operator.
tojson() is a simple JSON serializer.
try_silent() is an abbreviation of try(silent = TRUE).