Unicode {rebus.unicode}

Unicode classes

Description

Match ranges of unicode characters. In particular, you can match characters from a particular language.

Usage

armenian(lo, hi, char_class = TRUE)

armenian_ligatures(lo, hi, char_class = TRUE)

caucasian_albanian(lo, hi, char_class = TRUE)

cypriot_syllabary(lo, hi, char_class = TRUE)

cyrillic(lo, hi, char_class = TRUE)

cyrillic_supplement(lo, hi, char_class = TRUE)

cyrillic_extended_a(lo, hi, char_class = TRUE)

cyrillic_extended_b(lo, hi, char_class = TRUE)

elbasan(lo, hi, char_class = TRUE)

georgian(lo, hi, char_class = TRUE)

georgian_supplement(lo, hi, char_class = TRUE)

glagolitic(lo, hi, char_class = TRUE)

gothic(lo, hi, char_class = TRUE)

greek_and_coptic(lo, hi, char_class = TRUE)

greek_extended(lo, hi, char_class = TRUE)

latin(lo, hi, char_class = TRUE)

latin_1_supplement(lo, hi, char_class = TRUE)

latin_extended_a(lo, hi, char_class = TRUE)

latin_extended_b(lo, hi, char_class = TRUE)

latin_extended_c(lo, hi, char_class = TRUE)

latin_extended_d(lo, hi, char_class = TRUE)

latin_extended_e(lo, hi, char_class = TRUE)

latin_extended_additional(lo, hi, char_class = TRUE)

latin_ligatures(lo, hi, char_class = TRUE)

linear_a(lo, hi, char_class = TRUE)

linear_b_syllabary(lo, hi, char_class = TRUE)

linear_b_ideograms(lo, hi, char_class = TRUE)

ogham(lo, hi, char_class = TRUE)

old_italic(lo, hi, char_class = TRUE)

old_permic(lo, hi, char_class = TRUE)

phaistos_disc(lo, hi, char_class = TRUE)

runic(lo, hi, char_class = TRUE)

shavian(lo, hi, char_class = TRUE)

duployan(lo, hi, char_class = TRUE)

shorthand_format_controls(lo, hi, char_class = TRUE)

ipa_extensions(lo, hi, char_class = TRUE)

phonetic_extensions(lo, hi, char_class = TRUE)

phonetic_extensions_supplement(lo, hi, char_class = TRUE)

modifier_tone_letters(lo, hi, char_class = TRUE)

spacing_modifier_letters(lo, hi, char_class = TRUE)

superscripts_and_subscripts(lo, hi, char_class = TRUE)

combining_diacritic_marks(lo, hi, char_class = TRUE)

combining_diacritic_supplement(lo, hi, char_class = TRUE)

combining_diacritic_extended(lo, hi, char_class = TRUE)

combining_half_marks(lo, hi, char_class = TRUE)

bamun(lo, hi, char_class = TRUE)

bamun_supplement(lo, hi, char_class = TRUE)

bassa_vah(lo, hi, char_class = TRUE)

coptic(lo, hi, char_class = TRUE)

coptic_epact_numbers(lo, hi, char_class = TRUE)

egyptian_hieroglyphs(lo, hi, char_class = TRUE)

ethiopic(lo, hi, char_class = TRUE)

ethiopic_supplement(lo, hi, char_class = TRUE)

ethiopic_extended(lo, hi, char_class = TRUE)

ethiopic_extended_a(lo, hi, char_class = TRUE)

mende_kikakui(lo, hi, char_class = TRUE)

meroitic_cursive(lo, hi, char_class = TRUE)

meroitic_hieroglyphs(lo, hi, char_class = TRUE)

nko(lo, hi, char_class = TRUE)

osmanya(lo, hi, char_class = TRUE)

tifinagh(lo, hi, char_class = TRUE)

vai(lo, hi, char_class = TRUE)

arabic(lo, hi, char_class = TRUE)

arabic_supplement(lo, hi, char_class = TRUE)

arabic_extended_a(lo, hi, char_class = TRUE)

arabic_presentation_forms_a(lo, hi, char_class = TRUE)

arabic_presentation_forms_b(lo, hi, char_class = TRUE)

imperial_aramaic(lo, hi, char_class = TRUE)

avestan(lo, hi, char_class = TRUE)

carian(lo, hi, char_class = TRUE)

cuneiform(lo, hi, char_class = TRUE)

cuneiform_numbers_and_punctuation(lo, hi, char_class = TRUE)

old_persian(lo, hi, char_class = TRUE)

ugaritic(lo, hi, char_class = TRUE)

hebrew(lo, hi, char_class = TRUE)

lycian(lo, hi, char_class = TRUE)

lydian(lo, hi, char_class = TRUE)

mandaic(lo, hi, char_class = TRUE)

nabataean(lo, hi, char_class = TRUE)

old_north_arabian(lo, hi, char_class = TRUE)

old_south_arabian(lo, hi, char_class = TRUE)

pahlavi_inscriptional(lo, hi, char_class = TRUE)

pahlavi_psalter(lo, hi, char_class = TRUE)

palmyrene(lo, hi, char_class = TRUE)

phoenician(lo, hi, char_class = TRUE)

samaritan(lo, hi, char_class = TRUE)

syriac(lo, hi, char_class = TRUE)

manichaean(lo, hi, char_class = TRUE)

mongolian(lo, hi, char_class = TRUE)

old_turkic(lo, hi, char_class = TRUE)

phags_pa(lo, hi, char_class = TRUE)

tibetan(lo, hi, char_class = TRUE)

bengali_and_assamese(lo, hi, char_class = TRUE)

brahmi(lo, hi, char_class = TRUE)

chakma(lo, hi, char_class = TRUE)

devanagari(lo, hi, char_class = TRUE)

devanagari_extended(lo, hi, char_class = TRUE)

grantha(lo, hi, char_class = TRUE)

gujarati(lo, hi, char_class = TRUE)

gurmukhi(lo, hi, char_class = TRUE)

kaithi(lo, hi, char_class = TRUE)

kannada(lo, hi, char_class = TRUE)

kharoshthi(lo, hi, char_class = TRUE)

khojki(lo, hi, char_class = TRUE)

khudawadi(lo, hi, char_class = TRUE)

lepcha(lo, hi, char_class = TRUE)

limbu(lo, hi, char_class = TRUE)

mahajani(lo, hi, char_class = TRUE)

malayalam(lo, hi, char_class = TRUE)

meetei_mayek(lo, hi, char_class = TRUE)

meetei_mayek_extensions(lo, hi, char_class = TRUE)

modi(lo, hi, char_class = TRUE)

mro(lo, hi, char_class = TRUE)

ol_chiki(lo, hi, char_class = TRUE)

oriya(lo, hi, char_class = TRUE)

saurashtra(lo, hi, char_class = TRUE)

sharada(lo, hi, char_class = TRUE)

siddham(lo, hi, char_class = TRUE)

sinhala(lo, hi, char_class = TRUE)

sinhala_archaic_numbers(lo, hi, char_class = TRUE)

sora_sompeng(lo, hi, char_class = TRUE)

syloti_nagri(lo, hi, char_class = TRUE)

takri(lo, hi, char_class = TRUE)

tamil(lo, hi, char_class = TRUE)

telugu(lo, hi, char_class = TRUE)

thaana(lo, hi, char_class = TRUE)

tirhuta(lo, hi, char_class = TRUE)

vedic_extensions(lo, hi, char_class = TRUE)

warang_citi(lo, hi, char_class = TRUE)

cham(lo, hi, char_class = TRUE)

kayah_li(lo, hi, char_class = TRUE)

khmer(lo, hi, char_class = TRUE)

khmer_symbols(lo, hi, char_class = TRUE)

lao(lo, hi, char_class = TRUE)

myanmar(lo, hi, char_class = TRUE)

myanmar_extended_a(lo, hi, char_class = TRUE)

myanmar_extended_b(lo, hi, char_class = TRUE)

new_tai_lue(lo, hi, char_class = TRUE)

pahawh_hmong(lo, hi, char_class = TRUE)

pau_cin_hau(lo, hi, char_class = TRUE)

tai_le(lo, hi, char_class = TRUE)

tai_tham(lo, hi, char_class = TRUE)

tai_viet(lo, hi, char_class = TRUE)

thai(lo, hi, char_class = TRUE)

balinese(lo, hi, char_class = TRUE)

batak(lo, hi, char_class = TRUE)

buginese(lo, hi, char_class = TRUE)

buhid(lo, hi, char_class = TRUE)

hanunoo(lo, hi, char_class = TRUE)

javanese(lo, hi, char_class = TRUE)

rejang(lo, hi, char_class = TRUE)

sundanese(lo, hi, char_class = TRUE)

sundanese_supplement(lo, hi, char_class = TRUE)

tagalog(lo, hi, char_class = TRUE)

tagbanwa(lo, hi, char_class = TRUE)

bopomofo(lo, hi, char_class = TRUE)

bopomofo_extended(lo, hi, char_class = TRUE)

cjk_unified_ideographs(lo, hi, char_class = TRUE)

cjk_unified_ideographs_extension_a(lo, hi, char_class = TRUE)

cjk_unified_ideographs_extension_b(lo, hi, char_class = TRUE)

cjk_unified_ideographs_extension_c(lo, hi, char_class = TRUE)

cjk_unified_ideographs_extension_d(lo, hi, char_class = TRUE)

cjk_compatibility_ideographs(lo, hi, char_class = TRUE)

cjk_compatibility_ideographs_supplement(lo, hi, char_class = TRUE)

kangxi_radicals(lo, hi, char_class = TRUE)

kangxi_radicals_supplement(lo, hi, char_class = TRUE)

cjk_strokes(lo, hi, char_class = TRUE)

cjk_ideographic_description_characters(lo, hi, char_class = TRUE)

hangul_jamo(lo, hi, char_class = TRUE)

hangul_jamo_extended_a(lo, hi, char_class = TRUE)

hangul_jamo_extended_b(lo, hi, char_class = TRUE)

hangul_compatibility_jamo(lo, hi, char_class = TRUE)

hangul_syllables(lo, hi, char_class = TRUE)

hiragana(lo, hi, char_class = TRUE)

katakana(lo, hi, char_class = TRUE)

katakana_phonetic_extensions(lo, hi, char_class = TRUE)

kana_supplement(lo, hi, char_class = TRUE)

kanbun(lo, hi, char_class = TRUE)

lisu(lo, hi, char_class = TRUE)

miao(lo, hi, char_class = TRUE)

yi_syllables(lo, hi, char_class = TRUE)

yi_radicals(lo, hi, char_class = TRUE)

cherokee(lo, hi, char_class = TRUE)

deseret(lo, hi, char_class = TRUE)

unified_canadian_aboriginal_syllabics(lo, hi, char_class = TRUE)

unified_canadian_aboriginal_syllabics_extended(lo, hi, char_class = TRUE)

alphabetic_presentation_forms(lo, hi, char_class = TRUE)

halfwidth_and_fullwidth_forms(lo, hi, char_class = TRUE)

general_punctuation(lo, hi, char_class = TRUE)

latin_1_punctuation(lo, hi, char_class = TRUE)

small_form_variants(lo, hi, char_class = TRUE)

supplemental_punctuation(lo, hi, char_class = TRUE)

cjk_symbols_and_punctuation(lo, hi, char_class = TRUE)

cjk_compatibility_forms(lo, hi, char_class = TRUE)

fullwidth_ascii_punctuation(lo, hi, char_class = TRUE)

vertical_forms(lo, hi, char_class = TRUE)

letterlike_symbols(lo, hi, char_class = TRUE)

ancient_symbols(lo, hi, char_class = TRUE)

mathematical_alphanumeric_symbols(lo, hi, char_class = TRUE)

arabic_mathematical_alphanumeric_symbols(lo, hi, char_class = TRUE)

enclosed_alphanumerics(lo, hi, char_class = TRUE)

enclosed_alphanumeric_supplement(lo, hi, char_class = TRUE)

enclosed_cjk_letters_and_months(lo, hi, char_class = TRUE)

enclosed_ideographic_supplement(lo, hi, char_class = TRUE)

cjk_compatibility(lo, hi, char_class = TRUE)

miscellaneous_technical(lo, hi, char_class = TRUE)

control_pictures(lo, hi, char_class = TRUE)

optical_character_recognition(lo, hi, char_class = TRUE)

combining_diacritic_marks_for_symbols(lo, hi, char_class = TRUE)

aegean_numbers(lo, hi, char_class = TRUE)

ancient_greek_numbers(lo, hi, char_class = TRUE)

fullwidth_ascii_digits(lo, hi, char_class = TRUE)

common_indic_number_forms(lo, hi, char_class = TRUE)

coptic_epact_numbers(lo, hi, char_class = TRUE)

counting_rod_numerals(lo, hi, char_class = TRUE)

number_forms(lo, hi, char_class = TRUE)

rumi_numeral_symbols(lo, hi, char_class = TRUE)

sinhala_archaic_numbers(lo, hi, char_class = TRUE)

math_arrows(lo, hi, char_class = TRUE)

supplemental_arrows_a(lo, hi, char_class = TRUE)

supplemental_arrows_a(lo, hi, char_class = TRUE)

supplemental_arrows_a(lo, hi, char_class = TRUE)

additional_arrows(lo, hi, char_class = TRUE)

supplemental_mathematical_operators(lo, hi, char_class = TRUE)

miscellaneous_mathematical_symbols_a(lo, hi, char_class = TRUE)

miscellaneous_mathematical_symbols_b(lo, hi, char_class = TRUE)

floors_and_ceilings(lo, hi, char_class = TRUE)

invisible_operators(lo, hi, char_class = TRUE)

geometric_shapes(lo, hi, char_class = TRUE)

box_drawing(lo, hi, char_class = TRUE)

block_elements(lo, hi, char_class = TRUE)

geometric_shapes_extended(lo, hi, char_class = TRUE)

alchemical_symbols(lo, hi, char_class = TRUE)

braille_patterns(lo, hi, char_class = TRUE)

currency_symbols(lo, hi, char_class = TRUE)

dingbats(lo, hi, char_class = TRUE)

ornamental_dingbats(lo, hi, char_class = TRUE)

emoticons(lo, hi, char_class = TRUE)

chess_checkers_draughts(lo, hi, char_class = TRUE)

domino_tiles(lo, hi, char_class = TRUE)

japanese_chess(lo, hi, char_class = TRUE)

mahjong_tiles(lo, hi, char_class = TRUE)

playing_cards(lo, hi, char_class = TRUE)

card_suits(lo, hi, char_class = TRUE)

miscellaneous_symbols_and_pictographs(lo, hi, char_class = TRUE)

musical_symbols(lo, hi, char_class = TRUE)

ancient_greek_musical_notation(lo, hi, char_class = TRUE)

byzantine_musical_symbols(lo, hi, char_class = TRUE)

transport_and_map_symbols(lo, hi, char_class = TRUE)

yijing_mono_di_and_trigrams(lo, hi, char_class = TRUE)

yijing_hexagram_symbols(lo, hi, char_class = TRUE)

tai_xuan_jing_symbols(lo, hi, char_class = TRUE)

specials(lo, hi, char_class = TRUE)

tags(lo, hi, char_class = TRUE)

variation_selectors(lo, hi, char_class = TRUE)

variation_selectors_supplement(lo, hi, char_class = TRUE)

private_use_area(lo, hi, char_class = TRUE)

supplementary_private_use_area_a(lo, hi, char_class = TRUE)

supplementary_private_use_area_b(lo, hi, char_class = TRUE)

ARMENIAN

ARMENIAN_LIGATURES

CAUCASIAN_ALBANIAN

CYPRIOT_SYLLABARY

CYRILLIC

CYRILLIC_SUPPLEMENT

CYRILLIC_EXTENDED_A

CYRILLIC_EXTENDED_B

ELBASAN

GEORGIAN

GEORGIAN_SUPPLEMENT

GLAGOLITIC

GOTHIC

GREEK_AND_COPTIC

GREEK_EXTENDED

LATIN

LATIN_1_SUPPLEMENT

LATIN_EXTENDED_A

LATIN_EXTENDED_B

LATIN_EXTENDED_C

LATIN_EXTENDED_D

LATIN_EXTENDED_E

LATIN_EXTENDED_ADDITIONAL

LATIN_LIGATURES

LINEAR_A

LINEAR_B_SYLLABARY

LINEAR_B_IDEOGRAMS

OGHAM

OLD_ITALIC

OLD_PERMIC

PHAISTOS_DISC

RUNIC

SHAVIAN

DUPLOYAN

SHORTHAND_FORMAT_CONTROLS

IPA_EXTENSIONS

PHONETIC_EXTENSIONS

PHONETIC_EXTENSIONS_SUPPLEMENT

MODIFIER_TONE_LETTERS

SPACING_MODIFIER_LETTERS

SUPERSCRIPTS_AND_SUBSCRIPTS

COMBINING_DIACRITIC_MARKS

COMBINING_DIACRITIC_SUPPLEMENT

COMBINING_DIACRITIC_EXTENDED

COMBINING_HALF_MARKS

BAMUN

BAMUN_SUPPLEMENT

BASSA_VAH

COPTIC

COPTIC_EPACT_NUMBERS

EGYPTIAN_HIEROGLYPHS

ETHIOPIC

ETHIOPIC_SUPPLEMENT

ETHIOPIC_EXTENDED

ETHIOPIC_EXTENDED_A

MENDE_KIKAKUI

MEROITIC_CURSIVE

MEROITIC_HIEROGLYPHS

NKO

OSMANYA

TIFINAGH

VAI

ARABIC

ARABIC_SUPPLEMENT

ARABIC_EXTENDED_A

ARABIC_PRESENTATION_FORMS_A

ARABIC_PRESENTATION_FORMS_B

IMPERIAL_ARAMAIC

AVESTAN

CARIAN

CUNEIFORM

CUNEIFORM_NUMBERS_AND_PUNCTUATION

OLD_PERSIAN

UGARITIC

HEBREW

LYCIAN

LYDIAN

MANDAIC

NABATAEAN

OLD_NORTH_ARABIAN

OLD_SOUTH_ARABIAN

PAHLAVI_INSCRIPTIONAL

PAHLAVI_PSALTER

PALMYRENE

PHOENICIAN

SAMARITAN

SYRIAC

MANICHAEAN

MONGOLIAN

OLD_TURKIC

PHAGS_PA

TIBETAN

BENGALI_AND_ASSAMESE

BRAHMI

CHAKMA

DEVANAGARI

DEVANAGARI_EXTENDED

GRANTHA

GUJARATI

GURMUKHI

KAITHI

KANNADA

KHAROSHTHI

KHOJKI

KHUDAWADI

LEPCHA

LIMBU

MAHAJANI

MALAYALAM

MEETEI_MAYEK

MEETEI_MAYEK_EXTENSIONS

MODI

MRO

OL_CHIKI

ORIYA

SAURASHTRA

SHARADA

SIDDHAM

SINHALA

SINHALA_ARCHAIC_NUMBERS

SORA_SOMPENG

SYLOTI_NAGRI

TAKRI

TAMIL

TELUGU

THAANA

TIRHUTA

VEDIC_EXTENSIONS

WARANG_CITI

CHAM

KAYAH_LI

KHMER

KHMER_SYMBOLS

LAO

MYANMAR

MYANMAR_EXTENDED_A

MYANMAR_EXTENDED_B

NEW_TAI_LUE

PAHAWH_HMONG

PAU_CIN_HAU

TAI_LE

TAI_THAM

TAI_VIET

THAI

BALINESE

BATAK

BUGINESE

BUHID

HANUNOO

JAVANESE

REJANG

SUNDANESE

SUNDANESE_SUPPLEMENT

TAGALOG

TAGBANWA

BOPOMOFO

BOPOMOFO_EXTENDED

CJK_UNIFIED_IDEOGRAPHS

CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A

CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B

CJK_UNIFIED_IDEOGRAPHS_EXTENSION_C

CJK_UNIFIED_IDEOGRAPHS_EXTENSION_D

CJK_COMPATIBILITY_IDEOGRAPHS

CJK_COMPATIBILITY_IDEOGRAPHS_SUPPLEMENT

KANGXI_RADICALS

KANGXI_RADICALS_SUPPLEMENT

CJK_STROKES

CJK_IDEOGRAPHIC_DESCRIPTION_CHARACTERS

HANGUL_JAMO

HANGUL_JAMO_EXTENDED_A

HANGUL_JAMO_EXTENDED_B

HANGUL_COMPATIBILITY_JAMO

HANGUL_SYLLABLES

HIRAGANA

KATAKANA

KATAKANA_PHONETIC_EXTENSIONS

KANA_SUPPLEMENT

KANBUN

LISU

MIAO

YI_SYLLABLES

YI_RADICALS

CHEROKEE

DESERET

UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS

UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS_EXTENDED

ALPHABETIC_PRESENTATION_FORMS

HALFWIDTH_AND_FULLWIDTH_FORMS

GENERAL_PUNCTUATION

LATIN_1_PUNCTUATION

SMALL_FORM_VARIANTS

SUPPLEMENTAL_PUNCTUATION

CJK_SYMBOLS_AND_PUNCTUATION

CJK_COMPATIBILITY_FORMS

FULLWIDTH_ASCII_PUNCTUATION

VERTICAL_FORMS

LETTERLIKE_SYMBOLS

ANCIENT_SYMBOLS

MATHEMATICAL_ALPHANUMERIC_SYMBOLS

ARABIC_MATHEMATICAL_ALPHANUMERIC_SYMBOLS

ENCLOSED_ALPHANUMERICS

ENCLOSED_ALPHANUMERIC_SUPPLEMENT

ENCLOSED_CJK_LETTERS_AND_MONTHS

ENCLOSED_IDEOGRAPHIC_SUPPLEMENT

CJK_COMPATIBILITY

MISCELLANEOUS_TECHNICAL

CONTROL_PICTURES

OPTICAL_CHARACTER_RECOGNITION

COMBINING_DIACRITIC_MARKS_FOR_SYMBOLS

AEGEAN_NUMBERS

ANCIENT_GREEK_NUMBERS

FULLWIDTH_ASCII_DIGITS

COMMON_INDIC_NUMBER_FORMS

COPTIC_EPACT_NUMBERS

COUNTING_ROD_NUMERALS

NUMBER_FORMS

RUMI_NUMERAL_SYMBOLS

SINHALA_ARCHAIC_NUMBERS

MATH_ARROWS

SUPPLEMENTAL_ARROWS_A

SUPPLEMENTAL_ARROWS_A

SUPPLEMENTAL_ARROWS_A

ADDITIONAL_ARROWS

SUPPLEMENTAL_MATHEMATICAL_OPERATORS

MISCELLANEOUS_MATHEMATICAL_SYMBOLS_A

MISCELLANEOUS_MATHEMATICAL_SYMBOLS_B

FLOORS_AND_CEILINGS

INVISIBLE_OPERATORS

GEOMETRIC_SHAPES

BOX_DRAWING

BLOCK_ELEMENTS

GEOMETRIC_SHAPES_EXTENDED

ALCHEMICAL_SYMBOLS

BRAILLE_PATTERNS

CURRENCY_SYMBOLS

DINGBATS

ORNAMENTAL_DINGBATS

EMOTICONS

CHESS_CHECKERS_DRAUGHTS

DOMINO_TILES

JAPANESE_CHESS

MAHJONG_TILES

PLAYING_CARDS

CARD_SUITS

MISCELLANEOUS_SYMBOLS_AND_PICTOGRAPHS

MUSICAL_SYMBOLS

ANCIENT_GREEK_MUSICAL_NOTATION

BYZANTINE_MUSICAL_SYMBOLS

TRANSPORT_AND_MAP_SYMBOLS

YIJING_MONO_DI_AND_TRIGRAMS

YIJING_HEXAGRAM_SYMBOLS

TAI_XUAN_JING_SYMBOLS

SPECIALS

TAGS

VARIATION_SELECTORS

VARIATION_SELECTORS_SUPPLEMENT

PRIVATE_USE_AREA

SUPPLEMENTARY_PRIVATE_USE_AREA_A

SUPPLEMENTARY_PRIVATE_USE_AREA_B

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?

Format

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

Value

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

Note

Windows currently doesn't handle Unicode points with more than four digits correctly. See https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=16098

References

http://www.unicode.org/charts

See Also

ClassGroups

Examples

# Classes
latin()
greek_and_coptic()
cyrillic()
arabic()

# With repetition
hebrew(3, 6)
hiragana(1, Inf)
katakana(0, Inf)

# Without a class wrapper
cjk_unified_ideographs(char_class = FALSE)

# Constants
ARMENIAN
LINEAR_B_IDEOGRAMS
DUPLOYAN
OSMANYA

## Not run: 
# All the Unicode characer classes
# Not run, since it generates lots of output
setdiff(
  ls("package:rebus.unicode", pattern = lower()), 
  ls(
    "package:rebus.unicode", 
    pattern = START %R% case_insensitive(or("up", "ugc", "unicode")))
)

## End(Not run)

# Usage
pythag <- "\u03b1^2 + \u03b2^2 = \u03b3^2"
stringi::stri_extract_all_regex(pythag, greek_and_coptic())