| alnum_id | Generate ID strings |
| attr | Obtain an attribute of an object without partial matching |
| base64_encode | Encode/decode data into/from base64 encoding. |
| base64_uri | Generate the Data URI for a file |
| base_pkgs | Get base R package names |
| bg_process | Start a background process |
| broken_packages | Find out broken packages and reinstall them |
| bump_version | Bump version numbers |
| cache_exec | Cache the execution of an expression in memory or on disk |
| cache_rds | Cache the value of an R expression to an RDS file |
| crandalf_check | Submit check jobs to crandalf |
| csv_options | Parse comma-separated chunk options |
| decimal_dot | Evaluate an expression after forcing the decimal point to be... |
| del_empty_dir | Delete an empty directory |
| dir_create | Create a directory recursively by default |
| dir_exists | Test the existence of files and directories |
| divide_chunk | Divide chunk options from the code chunk body |
| do_once | Perform a task once in an R session |
| download_cache | Download a file from a URL and cache it on disk |
| download_file | Try various methods to download a file |
| embed_file | Embed a file, multiple files, or directory on an HTML page |
| env_option | Retrieve a global option from both 'options()' and... |
| existing_files | Find file paths that exist |
| exit_call | Call 'on.exit()' in a parent function |
| fenced_block | Create a fenced block in Markdown |
| file_ext | Manipulate filename extensions |
| file_rename | Rename files and directories |
| file_string | Read a text file and concatenate the lines by "\n" |
| format_bytes | Format numbers of bytes using a specified unit |
| from_root | Get the relative path of a path in a project relative to the... |
| github_releases | Get the tags of GitHub releases of a repository |
| grep_sub | Perform replacement with 'gsub()' on elements matched from... |
| gsub_file | Search and replace strings in files |
| html_tag | Tools for HTML tags |
| in_dir | Evaluate an expression under a specified working directory |
| install_dir | Install a source package from a directory |
| install_github | An alias of 'remotes::install_github()' |
| is_abs_path | Test if paths are relative or absolute |
| is_ascii | Check if a character vector consists of entirely ASCII... |
| is_blank | Test if a character vector consists of blank strings |
| isFALSE | Test if an object is 'FALSE' |
| is_R_CMD_check | Some utility functions for checking packages |
| is_sub_path | Test if a path is a subpath of a dir |
| is_web_path | Test if a path is a web path |
| lazy_save | Save objects to files and lazy-load them |
| magic_path | Find a file or directory under a root directory |
| mark_dirs | Mark some paths as directories |
| md5 | Calculate the MD5 checksums of R objects |
| md_table | Generate a simple Markdown pipe table |
| mime_type | Get the MIME types of files |
| msg_cat | Generate a message with 'cat()' |
| native_encode | Try to use the system native encoding to represent a... |
| new_app | Create a local web application |
| news2md | Convert package news to the Markdown format |
| normalize_path | Normalize paths |
| numbers_to_words | Convert numbers to English words |
| optipng | Run OptiPNG on all PNG files under a directory |
| os | Test for types of operating systems |
| parse_only | Parse R code and do not keep the source |
| pkg_attach | Attach or load packages, and automatically install missing... |
| process_file | Read a text file, process the text with a function, and write... |
| proc_kill | Kill a process and (optionally) all its child processes |
| proj_root | Return the (possible) root directory of a project |
| prose_index | Find the indices of lines in Markdown that are prose (not... |
| protect_math | Protect math expressions in pairs of backticks in Markdown |
| raw_string | Print a character vector in its raw form |
| read_all | Read all text files and concatenate their content |
| read_bin | Read all records of a binary file as a raw vector by default |
| read_utf8 | Read / write files encoded in UTF-8 |
| record | Run R code and record the results |
| record_print | Print methods for 'record()' |
| relative_path | Get the relative path of a path relative to a directory |
| rename_seq | Rename files with a sequential numeric prefix |
| rest_api | Get data from a REST API |
| retry | Retry calling a function for a number of times |
| rev_check | Run 'R CMD check' on the reverse dependencies of a package |
| Rscript | Run the commands 'Rscript' and 'R CMD' |
| Rscript_call | Call a function in a new R session via 'Rscript()' |
| rstudio_type | Type a character vector into the RStudio source editor |
| same_path | Test if two paths are the same after they are normalized |
| session_info | An alternative to sessionInfo() to print session information |
| set_envvar | Set environment variables |
| shrink_images | Shrink images to a maximum width |
| split_lines | Split a character vector by line breaks |
| split_source | Split source lines into complete expressions |
| strict_list | Strict lists |
| strip_html | Strip HTML tags |
| submit_cran | Submit a source package to CRAN |
| system3 | Run 'system2()' and mark its character output as UTF-8 if... |
| tinify | Use the Tinify API to compress PNG and JPEG images |
| tojson | A simple JSON serializer |
| tree | Turn the output of 'str()' into a tree diagram |
| try_error | Try an expression and see if it throws an error |
| try_silent | Try to evaluate an expression silently |
| upload_ftp | Upload to an FTP server via 'curl' |
| upload_imgur | Upload an image to imgur.com |
| url_accessible | Test if a URL is accessible |
| url_filename | Extract filenames from a URLs |
| valid_syntax | Check if the syntax of the code is valid |
| yaml_body | Partition the YAML metadata and the body in a document |
| yaml_load | Read YAML data |
