Skip to content

stringi_1.7.1
Compare
Choose a tag to compare
@gagolews gagolews released this 14 Jul 04:52
· 144 commits to master since this release
v1.7.1
42353fb

What Is New in stringi

1.7.1 (2021-07-14)

  • [BACKWARD INCOMPATIBILITY] %s$% and %stri$% now use the new stri_sprintf
    (see below) function instead of base::sprintf.

  • [BACKWARD INCOMPATIBILITY, NEW FEATURE] In stri_sub<- and stri_sub_all<-,
    providing a negative length from now on does not result in the corresponding
    input string being altered.

  • [BACKWARD INCOMPATIBILITY, NEW FEATURE] In stri_sub and stri_sub_all,
    negative length results in the corresponding output being NA
    or not extracted at all, depending on the setting of the new argument
    ignore_negative_length.

  • [BACKWARD INCOMPATIBILITY, BUGFIX, NEW FEATURE] In stri_subset*
    and their replacement versions, pattern and value cannot be longer
    than str (but now they are recycled if necessary).

  • [BACKWARD INCOMPATIBILITY, NEW FEATURE] stri_sub* now accept the
    from argument being a matrix like cbind(from, length=length).
    Unnamed columns or any other names are still interpreted as cbind(from, to).
    Also, the new argument use_matrix can be used to disable
    the special treatment of such matrices.

  • [DOCUMENTATION] It has been clarified that the syntax of *_charclass
    (e.g., used in stri_trim*) differs slightly from regex character
    classes.

  • [NEW FEATURE] #420: stri_sprintf (alias: stri_string_format)
    is a Unicode-aware replacement for and enhancement of the base sprintf:
    it adds a customised handling of NAs (on demand), computing field size
    based on code point width, outputting substrings of at most given width,
    variable width and precision (both at the same time), etc. Moreover,
    stri_printf can be used to display formatted strings conveniently.

  • [NEW FEATURE] #153: stri_match_*_regex now extract capture group names.

  • [NEW FEATURE] #25: stri_locate_*_regex now have a new argument,
    capture_groups, which allows for extracting positions of matches
    to parenthesised subexpressions.

  • [NEW FEATURE] stri_locate_* now have a new argument, get_length,
    whose setting may result in generating from-length matrices
    (instead of from-to ones).

  • [NEW FEATURE] #438: stri_trans_general now supports rule-based
    as well as reverse-direction transliteration.

  • [NEW FEATURE] #434: stri_datetime_format and stri_datetime_parse
    are now vectorised also with respect to the format argument.

  • [NEW FEATURE] stri_datetime_fstr has a new argument, ignore_special,
    which defaults to TRUE for backward compatibility.

  • [NEW FEATURE] stri_datetime_format, stri_datetime_add, and
    stri_datetime_fields now call as.POSIXct more eagerly.

  • [NEW FEATURE] stri_trim* now have a new argument, negate.

  • [NEW FEATURE] stri_replace_rstr converts gsub-style replacement strings
    to stri_replace-style.

  • [INTERNAL] stri_prepare_arg* have been refactored, buffer overruns
    in the exception handling subsystem are now avoided.

  • [BUGFIX] Few functions (stri_length, stri_enc_toutf32, etc.)
    did not throw an exception on an invalid UTF-8
    byte sequence (and merely issues a warning instead).

  • [BUGFIX] stri_datetime_fstr did not honour NA_character_
    and did not parse format strings such as "%Y%m%d" correctly.
    It has now been completely rewritten (in C).

  • [BUGFIX] stri_wrap did not recognise the width of certain Unicode sequences
    correctly.

Assets 2
Loading