A B C D E F G H I J K L M N O P Q R S T U V W Y Z misc
| regex-package | Create a regex |
| ADDITIONAL_ARROWS | Unicode groups |
| additional_arrows | Unicode groups |
| AEGEAN_NUMBERS | Unicode groups |
| aegean_numbers | Unicode groups |
| ALCHEMICAL_SYMBOLS | Unicode groups |
| alchemical_symbols | Unicode groups |
| ALNUM | Class Constants |
| alnum | Class Groups |
| ALPHA | Class Constants |
| alpha | Class Groups |
| ALPHABETIC_PRESENTATION_FORMS | Unicode groups |
| alphabetic_presentation_forms | Unicode groups |
| AM_PM | Date-time regexes |
| Anchors | The start or end of a string. |
| ANCIENT_GREEK_MUSICAL_NOTATION | Unicode groups |
| ancient_greek_musical_notation | Unicode groups |
| ANCIENT_GREEK_NUMBERS | Unicode groups |
| ancient_greek_numbers | Unicode groups |
| ANCIENT_SYMBOLS | Unicode groups |
| ancient_symbols | Unicode groups |
| ANY_CHAR | Class Constants |
| any_char | Class Groups |
| ARABIC | Unicode groups |
| arabic | Unicode groups |
| ARABIC_EXTENDED_A | Unicode groups |
| arabic_extended_a | Unicode groups |
| ARABIC_MATHEMATICAL_ALPHANUMERIC_SYMBOLS | Unicode groups |
| arabic_mathematical_alphanumeric_symbols | Unicode groups |
| ARABIC_PRESENTATION_FORMS_A | Unicode groups |
| arabic_presentation_forms_a | Unicode groups |
| ARABIC_PRESENTATION_FORMS_B | Unicode groups |
| arabic_presentation_forms_b | Unicode groups |
| ARABIC_SUPPLEMENT | Unicode groups |
| arabic_supplement | Unicode groups |
| ARMENIAN | Unicode groups |
| armenian | Unicode groups |
| ARMENIAN_LIGATURES | Unicode groups |
| armenian_ligatures | Unicode groups |
| as.perl_regex | Convert or test for regex objects |
| as.regex | Convert or test for regex objects |
| ASCII_ALNUM | Class Constants |
| ascii_alnum | Class Groups |
| ASCII_ALPHA | Class Constants |
| ascii_alpha | Class Groups |
| ASCII_DIGIT | Class Constants |
| ascii_digit | Class Groups |
| ASCII_LOWER | Class Constants |
| ascii_lower | Class Groups |
| ASCII_UPPER | Class Constants |
| ascii_upper | Class Groups |
| AVESTAN | Unicode groups |
| avestan | Unicode groups |
| Backreferences | Backreferences |
| BACKSLASH | Special characters |
| BALINESE | Unicode groups |
| balinese | Unicode groups |
| BAMUN | Unicode groups |
| bamun | Unicode groups |
| BAMUN_SUPPLEMENT | Unicode groups |
| bamun_supplement | Unicode groups |
| BASSA_VAH | Unicode groups |
| bassa_vah | Unicode groups |
| BATAK | Unicode groups |
| batak | Unicode groups |
| BENGALI_AND_ASSAMESE | Unicode groups |
| bengali_and_assamese | Unicode groups |
| BLANK | Class Constants |
| blank | Class Groups |
| BLOCK_ELEMENTS | Unicode groups |
| block_elements | Unicode groups |
| BOPOMOFO | Unicode groups |
| bopomofo | Unicode groups |
| BOPOMOFO_EXTENDED | Unicode groups |
| bopomofo_extended | Unicode groups |
| BOUNDARY | Word boundaries |
| BOX_DRAWING | Unicode groups |
| box_drawing | Unicode groups |
| BRAHMI | Unicode groups |
| brahmi | Unicode groups |
| BRAILLE_PATTERNS | Unicode groups |
| braille_patterns | Unicode groups |
| BUGINESE | Unicode groups |
| buginese | Unicode groups |
| BUHID | Unicode groups |
| buhid | Unicode groups |
| BYZANTINE_MUSICAL_SYMBOLS | Unicode groups |
| byzantine_musical_symbols | Unicode groups |
| DateTime | Date-time regexes |
| datetime | Date-time regexes |
| DAY | Date-time regexes |
| DAY_OF_YEAR | Date-time regexes |
| DAY_SINGLE | Date-time regexes |
| DESERET | Unicode groups |
| deseret | Unicode groups |
| DEVANAGARI | Unicode groups |
| devanagari | Unicode groups |
| DEVANAGARI_EXTENDED | Unicode groups |
| devanagari_extended | Unicode groups |
| DGT | Class Constants |
| dgt | Class Groups |
| DIGIT | Class Constants |
| digit | Class Groups |
| DINGBATS | Unicode groups |
| dingbats | Unicode groups |
| DMY | Date-time regexes |
| DOLLAR | Special characters |
| DOMINO_TILES | Unicode groups |
| domino_tiles | Unicode groups |
| DOT | Special characters |
| DTSEP | Date-time regexes |
| DUPLOYAN | Unicode groups |
| duployan | Unicode groups |
| DYM | Date-time regexes |
| EGYPTIAN_HIEROGLYPHS | Unicode groups |
| egyptian_hieroglyphs | Unicode groups |
| ELBASAN | Unicode groups |
| elbasan | Unicode groups |
| EMOTICONS | Unicode groups |
| emoticons | Unicode groups |
| ENCLOSED_ALPHANUMERICS | Unicode groups |
| enclosed_alphanumerics | Unicode groups |
| ENCLOSED_ALPHANUMERIC_SUPPLEMENT | Unicode groups |
| enclosed_alphanumeric_supplement | Unicode groups |
| ENCLOSED_CJK_LETTERS_AND_MONTHS | Unicode groups |
| enclosed_cjk_letters_and_months | Unicode groups |
| ENCLOSED_IDEOGRAPHIC_SUPPLEMENT | Unicode groups |
| enclosed_ideographic_supplement | Unicode groups |
| END | The start or end of a string. |
| escape_special | Escape special characters |
| ETHIOPIC | Unicode groups |
| ethiopic | Unicode groups |
| ETHIOPIC_EXTENDED | Unicode groups |
| ethiopic_extended | Unicode groups |
| ETHIOPIC_EXTENDED_A | Unicode groups |
| ethiopic_extended_a | Unicode groups |
| ETHIOPIC_SUPPLEMENT | Unicode groups |
| ethiopic_supplement | Unicode groups |
| exactly | Make a regex exact |
| FLOORS_AND_CEILINGS | Unicode groups |
| floors_and_ceilings | Unicode groups |
| format.perl_regex | Create a regex |
| format.regex | Print or format regex objects |
| FRACTIONAL_SECOND | Date-time regexes |
| FULLWIDTH_ASCII_DIGITS | Unicode groups |
| fullwidth_ascii_digits | Unicode groups |
| FULLWIDTH_ASCII_PUNCTUATION | Unicode groups |
| fullwidth_ascii_punctuation | Unicode groups |
| GENERAL_PUNCTUATION | Unicode groups |
| general_punctuation | Unicode groups |
| GEOMETRIC_SHAPES | Unicode groups |
| geometric_shapes | Unicode groups |
| GEOMETRIC_SHAPES_EXTENDED | Unicode groups |
| geometric_shapes_extended | Unicode groups |
| GEORGIAN | Unicode groups |
| georgian | Unicode groups |
| GEORGIAN_SUPPLEMENT | Unicode groups |
| georgian_supplement | Unicode groups |
| get_months | Get the days of the week |
| get_weekdays | Get the days of the week |
| GLAGOLITIC | Unicode groups |
| glagolitic | Unicode groups |
| GOTHIC | Unicode groups |
| gothic | Unicode groups |
| GRANTHA | Unicode groups |
| grantha | Unicode groups |
| GRAPH | Class Constants |
| graph | Class Groups |
| GREEK_AND_COPTIC | Unicode groups |
| greek_and_coptic | Unicode groups |
| GREEK_EXTENDED | Unicode groups |
| greek_extended | Unicode groups |
| group | Capture a token, or not |
| GUJARATI | Unicode groups |
| gujarati | Unicode groups |
| GURMUKHI | Unicode groups |
| gurmukhi | Unicode groups |
| HALFWIDTH_AND_FULLWIDTH_FORMS | Unicode groups |
| halfwidth_and_fullwidth_forms | Unicode groups |
| HANGUL_COMPATIBILITY_JAMO | Unicode groups |
| hangul_compatibility_jamo | Unicode groups |
| HANGUL_JAMO | Unicode groups |
| hangul_jamo | Unicode groups |
| HANGUL_JAMO_EXTENDED_A | Unicode groups |
| hangul_jamo_extended_a | Unicode groups |
| HANGUL_JAMO_EXTENDED_B | Unicode groups |
| hangul_jamo_extended_b | Unicode groups |
| HANGUL_SYLLABLES | Unicode groups |
| hangul_syllables | Unicode groups |
| HANUNOO | Unicode groups |
| hanunoo | Unicode groups |
| HEBREW | Unicode groups |
| hebrew | Unicode groups |
| HEX_DIGIT | Class Constants |
| hex_digit | Class Groups |
| HIRAGANA | Unicode groups |
| hiragana | Unicode groups |
| HM | Date-time regexes |
| HMS | Date-time regexes |
| HOUR12 | Date-time regexes |
| HOUR12_SINGLE | Date-time regexes |
| HOUR24 | Date-time regexes |
| HOUR24_SINGLE | Date-time regexes |
| IMPERIAL_ARAMAIC | Unicode groups |
| imperial_aramaic | Unicode groups |
| INVISIBLE_OPERATORS | Unicode groups |
| invisible_operators | Unicode groups |
| IPA_EXTENSIONS | Unicode groups |
| ipa_extensions | Unicode groups |
| is.perl_regex | Convert or test for regex objects |
| is.regex | Convert or test for regex objects |
| ISO_DATE | Date-time regexes |
| iso_date | Class Groups |
| ISO_DATETIME | Date-time regexes |
| iso_datetime | Class Groups |
| ISO_TIME | Date-time regexes |
| iso_time | Class Groups |
| JAPANESE_CHESS | Unicode groups |
| japanese_chess | Unicode groups |
| JAVANESE | Unicode groups |
| javanese | Unicode groups |
| KAITHI | Unicode groups |
| kaithi | Unicode groups |
| KANA_SUPPLEMENT | Unicode groups |
| kana_supplement | Unicode groups |
| KANBUN | Unicode groups |
| kanbun | Unicode groups |
| KANGXI_RADICALS | Unicode groups |
| kangxi_radicals | Unicode groups |
| KANGXI_RADICALS_SUPPLEMENT | Unicode groups |
| kangxi_radicals_supplement | Unicode groups |
| KANNADA | Unicode groups |
| kannada | Unicode groups |
| KATAKANA | Unicode groups |
| katakana | Unicode groups |
| KATAKANA_PHONETIC_EXTENSIONS | Unicode groups |
| katakana_phonetic_extensions | Unicode groups |
| KAYAH_LI | Unicode groups |
| kayah_li | Unicode groups |
| KHAROSHTHI | Unicode groups |
| kharoshthi | Unicode groups |
| KHMER | Unicode groups |
| khmer | Unicode groups |
| KHMER_SYMBOLS | Unicode groups |
| khmer_symbols | Unicode groups |
| KHOJKI | Unicode groups |
| khojki | Unicode groups |
| KHUDAWADI | Unicode groups |
| khudawadi | Unicode groups |
| LAO | Unicode groups |
| lao | Unicode groups |
| LATIN | Unicode groups |
| latin | Unicode groups |
| LATIN_1_PUNCTUATION | Unicode groups |
| latin_1_punctuation | Unicode groups |
| LATIN_1_SUPPLEMENT | Unicode groups |
| latin_1_supplement | Unicode groups |
| LATIN_EXTENDED_A | Unicode groups |
| latin_extended_a | Unicode groups |
| LATIN_EXTENDED_ADDITIONAL | Unicode groups |
| latin_extended_additional | Unicode groups |
| LATIN_EXTENDED_B | Unicode groups |
| latin_extended_b | Unicode groups |
| LATIN_EXTENDED_C | Unicode groups |
| latin_extended_c | Unicode groups |
| LATIN_EXTENDED_D | Unicode groups |
| latin_extended_d | Unicode groups |
| LATIN_EXTENDED_E | Unicode groups |
| latin_extended_e | Unicode groups |
| LATIN_LIGATURES | Unicode groups |
| latin_ligatures | Unicode groups |
| lazy | Repeat values |
| LEPCHA | Unicode groups |
| lepcha | Unicode groups |
| LETTERLIKE_SYMBOLS | Unicode groups |
| letterlike_symbols | Unicode groups |
| LIMBU | Unicode groups |
| limbu | Unicode groups |
| LINEAR_A | Unicode groups |
| linear_a | Unicode groups |
| LINEAR_B_IDEOGRAMS | Unicode groups |
| linear_b_ideograms | Unicode groups |
| LINEAR_B_SYLLABARY | Unicode groups |
| linear_b_syllabary | Unicode groups |
| LISU | Unicode groups |
| lisu | Unicode groups |
| literal | Treat part of a regular expression literally. |
| lookahead | Lookaround |
| lookbehind | Lookaround |
| LOWER | Class Constants |
| lower | Class Groups |
| LYCIAN | Unicode groups |
| lycian | Unicode groups |
| LYDIAN | Unicode groups |
| lydian | Unicode groups |
| MAHAJANI | Unicode groups |
| mahajani | Unicode groups |
| MAHJONG_TILES | Unicode groups |
| mahjong_tiles | Unicode groups |
| MALAYALAM | Unicode groups |
| malayalam | Unicode groups |
| MANDAIC | Unicode groups |
| mandaic | Unicode groups |
| MANICHAEAN | Unicode groups |
| manichaean | Unicode groups |
| MATHEMATICAL_ALPHANUMERIC_SYMBOLS | Unicode groups |
| mathematical_alphanumeric_symbols | Unicode groups |
| MATH_ARROWS | Unicode groups |
| math_arrows | Unicode groups |
| MDY | Date-time regexes |
| MEETEI_MAYEK | Unicode groups |
| meetei_mayek | Unicode groups |
| MEETEI_MAYEK_EXTENSIONS | Unicode groups |
| meetei_mayek_extensions | Unicode groups |
| MENDE_KIKAKUI | Unicode groups |
| mende_kikakui | Unicode groups |
| MEROITIC_CURSIVE | Unicode groups |
| meroitic_cursive | Unicode groups |
| MEROITIC_HIEROGLYPHS | Unicode groups |
| meroitic_hieroglyphs | Unicode groups |
| MIAO | Unicode groups |
| miao | Unicode groups |
| MINUTE | Date-time regexes |
| MISCELLANEOUS_MATHEMATICAL_SYMBOLS_A | Unicode groups |
| miscellaneous_mathematical_symbols_a | Unicode groups |
| MISCELLANEOUS_MATHEMATICAL_SYMBOLS_B | Unicode groups |
| miscellaneous_mathematical_symbols_b | Unicode groups |
| MISCELLANEOUS_SYMBOLS_AND_PICTOGRAPHS | Unicode groups |
| miscellaneous_symbols_and_pictographs | Unicode groups |
| MISCELLANEOUS_TECHNICAL | Unicode groups |
| miscellaneous_technical | Unicode groups |
| MODI | Unicode groups |
| modi | Unicode groups |
| MODIFIER_TONE_LETTERS | Unicode groups |
| modifier_tone_letters | Unicode groups |
| MONGOLIAN | Unicode groups |
| mongolian | Unicode groups |
| MONTH | Date-time regexes |
| MRO | Unicode groups |
| mro | Unicode groups |
| MS | Date-time regexes |
| MUSICAL_SYMBOLS | Unicode groups |
| musical_symbols | Unicode groups |
| MYANMAR | Unicode groups |
| myanmar | Unicode groups |
| MYANMAR_EXTENDED_A | Unicode groups |
| myanmar_extended_a | Unicode groups |
| MYANMAR_EXTENDED_B | Unicode groups |
| myanmar_extended_b | Unicode groups |
| MYD | Date-time regexes |
| NABATAEAN | Unicode groups |
| nabataean | Unicode groups |
| negated_char_class | A range or char_class of characters. |
| negate_and_group | A range or char_class of characters. |
| negative_lookahead | Lookaround |
| negative_lookbehind | Lookaround |
| NEW_TAI_LUE | Unicode groups |
| new_tai_lue | Unicode groups |
| NKO | Unicode groups |
| nko | Unicode groups |
| NOT_BOUNDARY | Word boundaries |
| NOT_DGT | Class Constants |
| not_dgt | Class Groups |
| NOT_SPC | Class Constants |
| not_spc | Class Groups |
| NOT_WRD | Class Constants |
| not_wrd | Class Groups |
| NUMBER_FORMS | Unicode groups |
| number_forms | Unicode groups |
| number_range | Generate a regular expression for a number range. |
| OGHAM | Unicode groups |
| ogham | Unicode groups |
| OLD_ITALIC | Unicode groups |
| old_italic | Unicode groups |
| OLD_NORTH_ARABIAN | Unicode groups |
| old_north_arabian | Unicode groups |
| OLD_PERMIC | Unicode groups |
| old_permic | Unicode groups |
| OLD_PERSIAN | Unicode groups |
| old_persian | Unicode groups |
| OLD_SOUTH_ARABIAN | Unicode groups |
| old_south_arabian | Unicode groups |
| OLD_TURKIC | Unicode groups |
| old_turkic | Unicode groups |
| OL_CHIKI | Unicode groups |
| ol_chiki | Unicode groups |
| one_or_more | Repeat values |
| OPEN_BRACE | Special characters |
| OPEN_BRACKET | Special characters |
| OPEN_PAREN | Special characters |
| OPTICAL_CHARACTER_RECOGNITION | Unicode groups |
| optical_character_recognition | Unicode groups |
| optional | Repeat values |
| or | Alternation |
| or1 | Alternation |
| ORIYA | Unicode groups |
| oriya | Unicode groups |
| ORNAMENTAL_DINGBATS | Unicode groups |
| ornamental_dingbats | Unicode groups |
| OSMANYA | Unicode groups |
| osmanya | Unicode groups |
| PAHAWH_HMONG | Unicode groups |
| pahawh_hmong | Unicode groups |
| PAHLAVI_INSCRIPTIONAL | Unicode groups |
| pahlavi_inscriptional | Unicode groups |
| PAHLAVI_PSALTER | Unicode groups |
| pahlavi_psalter | Unicode groups |
| PALMYRENE | Unicode groups |
| palmyrene | Unicode groups |
| PAU_CIN_HAU | Unicode groups |
| pau_cin_hau | Unicode groups |
| perl_regex | Create a regex |
| PHAGS_PA | Unicode groups |
| phags_pa | Unicode groups |
| PHAISTOS_DISC | Unicode groups |
| phaistos_disc | Unicode groups |
| PHOENICIAN | Unicode groups |
| phoenician | Unicode groups |
| PHONETIC_EXTENSIONS | Unicode groups |
| phonetic_extensions | Unicode groups |
| PHONETIC_EXTENSIONS_SUPPLEMENT | Unicode groups |
| phonetic_extensions_supplement | Unicode groups |
| PIPE | Special characters |
| PLAYING_CARDS | Unicode groups |
| playing_cards | Unicode groups |
| PLUS | Special characters |
| Class Constants | |
| print.regex | Print or format regex objects |
| printable | Class Groups |
| PRIVATE_USE_AREA | Unicode groups |
| private_use_area | Unicode groups |
| PUNCT | Class Constants |
| punct | Class Groups |
| QUESTION | Special characters |
| recursive | Make the regular expression recursive. |
| recycle | Recycle arguments |
| REF1 | Backreferences |
| REF2 | Backreferences |
| REF3 | Backreferences |
| REF4 | Backreferences |
| REF5 | Backreferences |
| REF6 | Backreferences |
| REF7 | Backreferences |
| REF8 | Backreferences |
| REF9 | Backreferences |
| regex | Create a regex |
| REJANG | Unicode groups |
| rejang | Unicode groups |
| repeated | Repeat values |
| repeat_in_class | Engine for grouping and repeating classes |
| ROMAN | Class Constants |
| roman | Class Groups |
| RUMI_NUMERAL_SYMBOLS | Unicode groups |
| rumi_numeral_symbols | Unicode groups |
| RUNIC | Unicode groups |
| runic | Unicode groups |
| SAMARITAN | Unicode groups |
| samaritan | Unicode groups |
| SAURASHTRA | Unicode groups |
| saurashtra | Unicode groups |
| SECOND | Date-time regexes |
| SHARADA | Unicode groups |
| sharada | Unicode groups |
| SHAVIAN | Unicode groups |
| shavian | Unicode groups |
| SHORTHAND_FORMAT_CONTROLS | Unicode groups |
| shorthand_format_controls | Unicode groups |
| SIDDHAM | Unicode groups |
| siddham | Unicode groups |
| SINHALA | Unicode groups |
| sinhala | Unicode groups |
| SINHALA_ARCHAIC_NUMBERS | Unicode groups |
| sinhala_archaic_numbers | Unicode groups |
| SMALL_FORM_VARIANTS | Unicode groups |
| small_form_variants | Unicode groups |
| SORA_SOMPENG | Unicode groups |
| sora_sompeng | Unicode groups |
| SPACE | Class Constants |
| space | Class Groups |
| SPACING_MODIFIER_LETTERS | Unicode groups |
| spacing_modifier_letters | Unicode groups |
| SPC | Class Constants |
| spc | Class Groups |
| SpecialCharacters | Special characters |
| SPECIALS | Unicode groups |
| specials | Unicode groups |
| STAR | Special characters |
| START | The start or end of a string. |
| SUNDANESE | Unicode groups |
| sundanese | Unicode groups |
| SUNDANESE_SUPPLEMENT | Unicode groups |
| sundanese_supplement | Unicode groups |
| SUPERSCRIPTS_AND_SUBSCRIPTS | Unicode groups |
| superscripts_and_subscripts | Unicode groups |
| SUPPLEMENTAL_ARROWS_A | Unicode groups |
| supplemental_arrows_a | Unicode groups |
| SUPPLEMENTAL_MATHEMATICAL_OPERATORS | Unicode groups |
| supplemental_mathematical_operators | Unicode groups |
| SUPPLEMENTAL_PUNCTUATION | Unicode groups |
| supplemental_punctuation | Unicode groups |
| SUPPLEMENTARY_PRIVATE_USE_AREA_A | Unicode groups |
| supplementary_private_use_area_a | Unicode groups |
| SUPPLEMENTARY_PRIVATE_USE_AREA_B | Unicode groups |
| supplementary_private_use_area_b | Unicode groups |
| SYLOTI_NAGRI | Unicode groups |
| syloti_nagri | Unicode groups |
| SYRIAC | Unicode groups |
| syriac | Unicode groups |
| TAGALOG | Unicode groups |
| tagalog | Unicode groups |
| TAGBANWA | Unicode groups |
| tagbanwa | Unicode groups |
| TAGS | Unicode groups |
| tags | Unicode groups |
| TAI_LE | Unicode groups |
| tai_le | Unicode groups |
| TAI_THAM | Unicode groups |
| tai_tham | Unicode groups |
| TAI_VIET | Unicode groups |
| tai_viet | Unicode groups |
| TAI_XUAN_JING_SYMBOLS | Unicode groups |
| tai_xuan_jing_symbols | Unicode groups |
| TAKRI | Unicode groups |
| takri | Unicode groups |
| TAMIL | Unicode groups |
| tamil | Unicode groups |
| TELUGU | Unicode groups |
| telugu | Unicode groups |
| THAANA | Unicode groups |
| thaana | Unicode groups |
| THAI | Unicode groups |
| thai | Unicode groups |
| TIBETAN | Unicode groups |
| tibetan | Unicode groups |
| TIFINAGH | Unicode groups |
| tifinagh | Unicode groups |
| TIMEZONE | Date-time regexes |
| TIMEZONE_OFFSET | Date-time regexes |
| TIRHUTA | Unicode groups |
| tirhuta | Unicode groups |
| token | Capture a token, or not |
| TRANSPORT_AND_MAP_SYMBOLS | Unicode groups |
| transport_and_map_symbols | Unicode groups |
| UGARITIC | Unicode groups |
| ugaritic | Unicode groups |
| Unicode | Unicode groups |
| UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS | Unicode groups |
| unified_canadian_aboriginal_syllabics | Unicode groups |
| UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS_EXTENDED | Unicode groups |
| unified_canadian_aboriginal_syllabics_extended | Unicode groups |
| UNMATCHABLE | Class Constants |
| UPPER | Class Constants |
| upper | Class Groups |
| VAI | Unicode groups |
| vai | Unicode groups |
| VARIATION_SELECTORS | Unicode groups |
| variation_selectors | Unicode groups |
| VARIATION_SELECTORS_SUPPLEMENT | Unicode groups |
| variation_selectors_supplement | Unicode groups |
| VEDIC_EXTENSIONS | Unicode groups |
| vedic_extensions | Unicode groups |
| VERTICAL_FORMS | Unicode groups |
| vertical_forms | Unicode groups |
| WARANG_CITI | Unicode groups |
| warang_citi | Unicode groups |
| WEEKDAY0 | Date-time regexes |
| WEEKDAY1 | Date-time regexes |
| WEEK_OF_YEAR | Date-time regexes |
| WordBoundaries | Word boundaries |
| WRD | Class Constants |
| wrd | Class Groups |
| YDM | Date-time regexes |
| YEAR | Date-time regexes |
| YEAR2 | Date-time regexes |
| YEAR4 | Date-time regexes |
| YIJING_HEXAGRAM_SYMBOLS | Unicode groups |
| yijing_hexagram_symbols | Unicode groups |
| YIJING_MONO_DI_AND_TRIGRAMS | Unicode groups |
| yijing_mono_di_and_trigrams | Unicode groups |
| YI_RADICALS | Unicode groups |
| yi_radicals | Unicode groups |
| YI_SYLLABLES | Unicode groups |
| yi_syllables | Unicode groups |
| YMD | Date-time regexes |
| zero_or_more | Repeat values |
| %c% | Combine strings together |
| %R% | Combine strings together |
| %|% | Alternation |