Unicode General Categories

Description

Match a Unicode General Category.

Usage

ugc_cased_letter(lo, hi, char_class = TRUE)

ugc_close_punctuation(lo, hi, char_class = TRUE)

ugc_connector_punctuation(lo, hi, char_class = TRUE)

ugc_control(lo, hi, char_class = TRUE)

ugc_currency_symbol(lo, hi, char_class = TRUE)

ugc_dash_punctuation(lo, hi, char_class = TRUE)

ugc_decimal_number(lo, hi, char_class = TRUE)

ugc_enclosing_mark(lo, hi, char_class = TRUE)

ugc_final_punctuation(lo, hi, char_class = TRUE)

ugc_format_control(lo, hi, char_class = TRUE)

ugc_initial_punctuation(lo, hi, char_class = TRUE)

ugc_letter(lo, hi, char_class = TRUE)

ugc_letter_number(lo, hi, char_class = TRUE)

ugc_line_separator(lo, hi, char_class = TRUE)

ugc_lowercase_letter(lo, hi, char_class = TRUE)

ugc_mark(lo, hi, char_class = TRUE)

ugc_math_symbol(lo, hi, char_class = TRUE)

ugc_modifier_letter(lo, hi, char_class = TRUE)

ugc_modifier_symbol(lo, hi, char_class = TRUE)

ugc_nonspacing_mark(lo, hi, char_class = TRUE)

ugc_number(lo, hi, char_class = TRUE)

ugc_open_punctuation(lo, hi, char_class = TRUE)

ugc_other(lo, hi, char_class = TRUE)

ugc_other_letter(lo, hi, char_class = TRUE)

ugc_other_number(lo, hi, char_class = TRUE)

ugc_other_punctuation(lo, hi, char_class = TRUE)

ugc_other_symbol(lo, hi, char_class = TRUE)

ugc_paragraph_separator(lo, hi, char_class = TRUE)

ugc_private_use_control(lo, hi, char_class = TRUE)

ugc_punctuation(lo, hi, char_class = TRUE)

ugc_separator(lo, hi, char_class = TRUE)

ugc_space_separator(lo, hi, char_class = TRUE)

ugc_spacing_mark(lo, hi, char_class = TRUE)

ugc_surrogate_control(lo, hi, char_class = TRUE)

ugc_symbol(lo, hi, char_class = TRUE)

ugc_titlecase_letter(lo, hi, char_class = TRUE)

ugc_unassigned_control(lo, hi, char_class = TRUE)

ugc_uppercase_letter(lo, hi, char_class = TRUE)

UGC_UPPERCASE_LETTER

UGC_LOWERCASE_LETTER

UGC_TITLECASE_LETTER

UGC_CASED_LETTER

UGC_MODIFIER_LETTER

UGC_OTHER_LETTER

UGC_LETTER

UGC_NONSPACING_MARK

UGC_SPACING_MARK

UGC_ENCLOSING_MARK

UGC_MARK

UGC_DECIMAL_NUMBER

UGC_LETTER_NUMBER

UGC_OTHER_NUMBER

UGC_NUMBER

UGC_CONNECTOR_PUNCTUATION

UGC_DASH_PUNCTUATION

UGC_OPEN_PUNCTUATION

UGC_CLOSE_PUNCTUATION

UGC_INITIAL_PUNCTUATION

UGC_FINAL_PUNCTUATION

UGC_OTHER_PUNCTUATION

UGC_PUNCTUATION

UGC_MATH_SYMBOL

UGC_CURRENCY_SYMBOL

UGC_MODIFIER_SYMBOL

UGC_OTHER_SYMBOL

UGC_SYMBOL

UGC_SPACE_SEPARATOR

UGC_LINE_SEPARATOR

UGC_PARAGRAPH_SEPARATOR

UGC_SEPARATOR

UGC_CONTROL

UGC_FORMAT_CONTROL

UGC_SURROGATE_CONTROL

UGC_PRIVATE_USE_CONTROL

UGC_UNASSIGNED_CONTROL

UGC_OTHER

Arguments

Format

An object of class regex (inherits from character) of length 1.

Value

A character vector representing part or all of a regular expression.

References

Table 12 of the Unicode Standard Annex #44 defines the Unicode General Categories. http://www.unicode.org/reports/tr44

You can see which characters are contained in a category by visiting, e.g., http://www.fileformat.info/info/unicode/category/Nd/list.htm

See Also

unicode_property, Unicode

Examples

# Classes
ugc_lowercase_letter()
ugc_decimal_number()
ugc_paragraph_separator()
ugc_currency_symbol()

# With repetition
ugc_nonspacing_mark(3, 6)
ugc_separator(1, Inf)
ugc_dash_punctuation(0, Inf)

# Without a class wrapper
ugc_titlecase_letter(char_class = FALSE)

# Constants
UGC_UPPERCASE_LETTER
UGC_LETTER_NUMBER
UGC_MATH_SYMBOL
UGC_FORMAT_CONTROL

## Not run: 
# All the Unicode general categories.
# Not run, since it generates lots of output
ls("package:rebus.unicode", pattern = "^ugc")

## End(Not run)

# Usage
library(rebus.base)
x <- "I exchanged $1000 for \u20ac665.41 and \u00a3243.13."
(rx <- capture(ugc_currency_symbol()) %R% 
  capture(
    ugc_decimal_number(1, Inf) %R%
    optional(group("." %R% ugc_decimal_number(2)))
  )
)
stringi::stri_match_all_regex(x, rx)