rebus (version 0.0-4)

ClassGroups: Class Groups

Description

Match groups of classes

Usage

alnum(lo, hi, char_class = TRUE)

alpha(lo, hi, char_class = TRUE)

blank(lo, hi, char_class = TRUE)

cntrl(lo, hi, char_class = TRUE)

digit(lo, hi, char_class = TRUE)

graph(lo, hi, char_class = TRUE)

lower(lo, hi, char_class = TRUE)

printable(lo, hi, char_class = TRUE)

punct(lo, hi, char_class = TRUE)

space(lo, hi, char_class = TRUE)

upper(lo, hi, char_class = TRUE)

hex_digit(lo, hi, char_class = TRUE)

any_char(lo, hi)

dgt(lo, hi, char_class = TRUE)

wrd(lo, hi, char_class = TRUE)

spc(lo, hi, char_class = TRUE)

not_dgt(lo, hi, char_class = TRUE)

not_wrd(lo, hi, char_class = TRUE)

not_spc(lo, hi, char_class = TRUE)

ascii_digit(lo, hi, char_class = TRUE)

ascii_lower(lo, hi, char_class = TRUE)

ascii_upper(lo, hi, char_class = TRUE)

ascii_alpha(lo, hi, char_class = TRUE)

ascii_alnum(lo, hi, char_class = TRUE)

iso_date(lo, hi, char_class = TRUE)

iso_time(lo, hi, char_class = TRUE)

iso_datetime(lo, hi, char_class = TRUE)

roman(lo, hi, char_class = TRUE)

char_range(lo, hi, char_class = lo != hi)

Arguments

lo

A non-negative integer. Minimum number of repeats, when grouped.

hi

positive integer. Maximum number of repeats, when grouped.

char_class

TRUE or FALSE. Should the values be wrapped into a character class?

Value

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

References

http://www.regular-expressions.info/shorthand.html

See Also

regex, Unicode

Examples

# R character classes
alnum()
alpha()
blank()
cntrl()
digit()
graph()
lower()
printable()
punct()
space()
upper()
hex_digit()

# Generic classes
any_char()
dgt()
wrd()
spc()

# Generic negated classes
not_dgt()
not_wrd()
not_spc()

# Non-locale-specific classes
ascii_digit()
ascii_lower()
ascii_upper()

# ISO 8601 date-time classes
iso_date()
iso_time()
iso_datetime()

# Roman numerals
roman()

#Grouping and repetition
digit(char_class = FALSE)
digit(3)
digit(3, 5)
digit(0)
digit(1)
digit(0, 1)