v3.1.0

Breaking changes

• The C progress bar API now uses double instead of int as the data
  type of the progress units (#335).

New features

• Several improvements and changes in the ansi_*() functions:

  • most ansi_*() functions are now implemented in C and they are
    much faster (#316).
  • they handle NA values better.
  • many functions now use UTF-8 graphemes by default instead of code
    points. E.g. ansi_nchar() counts graphemes, etc.
  • they convert their input to UTF-8 and always return UTF-8
    encoded strings.
  • new function ansi_simplify() to remove superfluous ANSI tags.
  • new function ansi_html() to convert ANSI-highlighted strings
    to HTML.
  • ansi_has_any() and ansi_strip() now have sgr and csi
    arguments to look for SGR tags, CSI tags, or both.

• New functions that handle UTF-8 encoded strings correctly:
  utf8_graphemes(), utf8_nchar(), utf8_substr().

• Support for palettes, including a colorblind friendly palette.
  See ?ansi_palettes for details.

• True color support: num_ansi_colors() now detects terminals with
  24 bit color support, and make_ansi_style() uses the exact RGB colors
  on these terminals (#208).

• The new col_br_*() and bg_br_() functions create bright versions of
  eight base ANSI colors (#327).

• New function code_highlight() to syntax highlight R code. It supports
  several themes out of the box, see code_theme_list() (#348).

• New functions for hashing: hash_animal(), hash_emoji() and
  hash_md5().

• New diff_chr() and diff_str() functions to calculate the difference
  of character vectors and letters of strings.

Smaller improvements

• Progress bars with clear = FALSE now print the last, completed, state
  properly.

• The progress bar for Shiny apps now handles output from
  cli_progress_output().

• Progress variables in C format_done strings work correctly now (#337).

• cli_dl() now works with an empty description, and gives a better
  error for invalid input (#347).

• rule() is now works better if the labels have ANSI markup.

• cli_spark objects now have format() and print() methods.

• cli_process_done() now does not error without a process (#351).

• ANSI markup is now supported in RStudio jobs (#353).

• The lack of ANSI support is now again correctly detected if there is an
  active sink() (#366).

cli 3.0.1

• ansi_strtrim() now correctly keeps NA values (#309).

• format_inline() now uses the correct environment (@rundel, #314).

v3.0.1

• ansi_strtrim() now correctly keeps NA values (#309).

• format_inline() now uses the correct environment (@rundel, #314).

v3.0.0

• New functions for progress bars, please see the new articles at
  https://cli.r-lib.org/articles/ for details.

• New cli_abort(), cli_warn() and cli_inform() functions, to throw
  errors with cli pluralization and styling.

• New format_inline() function to format a cli string without emitting
  it (#278).

v2.5.0

• New style_no_*() functions to locally undo styling.
  New col_none() and bg_none() functions to locally undo text color
  and background color.

• It is now possible to undo text and background color in a theme, by
  setting them to NULL or "none".

• cli_memo() was renamed to cli_bullets(), as it is by default
  formatted as a bullet list (#250).

• New ansi_toupper(), ansi_tolower and ansi_chartr() functions,
  the ANSI styling aware variants of toupper(), tolower() and
  chartr() (#248).

• New test_that_cli() helper function to write testthat tests for
  cli output.

• tree() now does not produce warnings for tibbles (#238).

• New inline style: .cls to format class names, e.g.
  "{.var fit} must be an {.cls lm} object".

v2.4.0

• New cli_memo() function to create a list of items or tasks.

• New cli::cli() function to create a single cli message from multiple
  cli calls (#170).

• cli now highlights weird names, e.g. path names with leading or
  trailing space (#227).

• Styling is fixed at several places. In particular, nested lists should
  be now formatted better (#221).

• New spark_bar() and spark_line() funcions to draw small bar or
  line charts.

v.2.3.1

• ANSI color support detection works correctly now in older RStudio,
  and also on older R versions.

• cli_h1(), cli_h2() and cli_h3() now work with multiple glue
  substitutions (#218).

v2.3.0

• boxx() now correctly calculates the width of the box for non-ASCII
  characters.

• New ansi_trimws() and ansi_strwrap() functions, they are similar
  to trimws() and strwrap() but work on ANSI strings.

• New ansi_columns() function to format ANSI strings in multiple columns.

• ansi_substr(), ansi_substring(), ansi_strsplit(), ansi_align()
  now always return ansi_string objects.

• ansi_nchar(), ansi_align(), ansi_strtrim() and the new
  ansi_strwrap() as well handle wide Unicode correctly, according to
  their display width.

• boxx() can now add headers and footers to boxes.

v2.2.0

• New style_hyperlink() function to add hyperlinks, on terminals that
  support them.

• cli_format_method() now works properly in knitr, and other environments
  that catch message conditions (#159).

• ANSI strings created by col_*, bg_* and style_* now also add the
  character class to the result. This fixes issues with code that
  expect character objects.

• New functions to manipulate ANSI strings: ansi_aling(),
  ansi_has_any(), ansi_nchar(), ansi_regex(), ansi_strip(),
  ansi_strsplit(), ansi_substr(), ansi_substring().

v2.1.0

• New cli_vec() function to allow easier formatting of collapsed
  vectors. It is now also possible to use styling to set the collapsing
  parameters (#129).

• New pluralize() function to perform pluralization without generating
  cli output (#155).

• console_width() works better now in RStudio, and also in terminals.

• Styling of verbatim text work properly now (#147, @tzakharko).

• Messages (ie. message conditions) coming from cli now have the
  cliMessage class, so you can easily suppress them without suppressing
  other messages (#156).

• cli prints the output to stderr() now, if there is an output or
  message sink. This is to make interactive and non-interactive sessions
  consistent (#153).

• Pluralization works corrently now if the last alternative is the
  empty string (#158).

• cli now caches the result of the dark background detection in iTerm on
  macOS. Reload cli to delete the cache (#131).

• The is_dynamic_tty(), is_ansi_tty() and ansi_hide_cursor() and
  releted functions now default to the "auto" stream, which is
  automatically selected to be either stdout() or stderr().
  See the manual for details (#144).

• The default theme now quotes file names, paths, email addresses if they
  don't start or end with an alphanumeric character or a slash. This is
  to make it easier to spot names that start or end with a space (#167).

• make_spinner() clears the line properly now (@tzakharko, #164).

• Semantic cli functions now automatically replace Unicode non-breaking
  space characters (\u00a0) with regular space characters, right before
  output. They are still used to calculate the line breaks, but not
  outputted (#161).

v2.0.2

• The status bar now does not simplify multiple spaces by a single space.

• cli now does not crash if it fails to detect whether the RStudio theme
  is a dark theme (#138).

• cli now works better with wide Unicode characters, for example emojis.
  In particular, a status bar containing emojis is cleared properly (#133).

• The status bar now does not flicker when updated, in terminals (#135).