XID Continue - No

Unicode Version 18.0

No is the designation for characters that are not permitted to continue an identifier in programming languages and text processing systems. This includes punctuation marks, symbols, spaces, and most special characters, as well as digits that appear outside their allowed positions. It also covers characters with no inherent alphabetic or numeric value, such as emoji, mathematical operators, and formatting controls, which would break the lexical rules of identifiers if used mid-token. Essentially, any character that does not contribute to a valid identifier’s continuation, meaning it cannot follow the first character and still maintain the identifier’s syntactic integrity, receives this value. This ensures that identifiers remain unambiguous and follow standard parsing conventions, rejecting anything from hyphens to quotation marks to invisible characters.

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START OF HEADING

END OF TRANSMISSION

CHARACTER TABULATION

LINE TABULATION

CARRIAGE RETURN

LOCKING-SHIFT ONE

LOCKING-SHIFT ZERO

DATA LINK ESCAPE

DEVICE CONTROL ONE

DEVICE CONTROL TWO

DEVICE CONTROL THREE

DEVICE CONTROL FOUR

NEGATIVE ACKNOWLEDGE

SYNCHRONOUS IDLE

END OF TRANSMISSION BLOCK

GROUP SEPARATOR

INFORMATION SEPARATOR TWO

INFORMATION SEPARATOR ONE

Exclamation Mark

Left Parenthesis

Right Parenthesis

Greater-than Sign

Left Square Bracket

Reverse Solidus

Right Square Bracket

Circumflex Accent

Left Curly Bracket

Right Curly Bracket

Latin-1 Supplement

Latin-1 Supplement

BREAK PERMITTED HERE

START OF SELECTED AREA

END OF SELECTED AREA

CHARACTER TABULATION SET

CHARACTER TABULATION WITH JUSTIFICATION

LINE TABULATION SET

PARTIAL LINE DOWN

PARTIAL LINE BACKWARD

SINGLE SHIFT TWO

SINGLE SHIFT THREE

DEVICE CONTROL STRING

PRIVATE USE ONE

PRIVATE USE TWO

SET TRANSMIT STATE

CANCEL CHARACTER

MESSAGE WAITING

START OF GUARDED AREA

END OF GUARDED AREA

START OF STRING

Latin-1 Supplement

SINGLE CHARACTER INTRODUCER

CONTROL SEQUENCE INTRODUCER

STRING TERMINATOR

OPERATING SYSTEM COMMAND

PRIVACY MESSAGE

APPLICATION PROGRAM COMMAND

Inverted Exclamation Mark

Left-Pointing Double Angle Quotation Mark

Registered Sign

Plus-Minus Sign

Superscript Two

Superscript Three

Superscript One

Right-Pointing Double Angle Quotation Mark

Vulgar Fraction One Quarter

Vulgar Fraction One Half

Vulgar Fraction Three Quarters

Inverted Question Mark

Multiplication Sign

Modifier Letter Left Arrowhead

Modifier Letter Right Arrowhead

Modifier Letter Up Arrowhead

Modifier Letter down Arrowhead

Modifier Letter Centred Right Half Ring

Modifier Letter Centred Left Half Ring

Modifier Letter Up Tack

Modifier Letter down Tack

Modifier Letter Plus Sign

Modifier Letter Minus Sign

Double Acute Accent

Modifier Letter Rhotic Hook

Modifier Letter Cross Accent

Modifier Letter Extra-High Tone Bar

Modifier Letter High Tone Bar

Modifier Letter Mid Tone Bar

Modifier Letter Low Tone Bar

Modifier Letter Extra-Low Tone Bar

Modifier Letter Yin Departing Tone Mark

Modifier Letter Yang Departing Tone Mark

Modifier Letter Unaspirated

Modifier Letter Low down Arrowhead

Modifier Letter Low Up Arrowhead

Modifier Letter Low Left Arrowhead

Modifier Letter Low Right Arrowhead

Modifier Letter Low Ring

Modifier Letter Middle Grave Accent

Modifier Letter Middle Double Grave Accent

Modifier Letter Middle Double Acute Accent

Modifier Letter Low Tilde

Modifier Letter Raised Colon

Modifier Letter Begin High Tone

Modifier Letter End High Tone

Modifier Letter Begin Low Tone

Modifier Letter End Low Tone

Modifier Letter Shelf

Modifier Letter Open Shelf

Modifier Letter Low Left Arrow

Greek Lower Numeral Sign

Greek Ypogegrammeni

Greek Question Mark

Greek Dialytika Tonos

Greek Reversed Lunate Epsilon Symbol

Cyrillic Thousands Sign

Combining Cyrillic Hundred Thousands Sign

Combining Cyrillic Millions Sign

Armenian Apostrophe

Armenian Emphasis Mark

Armenian Exclamation Mark

Armenian Question Mark

Armenian Abbreviation Mark

Armenian Full Stop

Armenian Hyphen

Right-Facing Armenian Eternity Sign

Left-Facing Armenian Eternity Sign

Armenian Dram Sign

Hebrew Punctuation Maqaf

Hebrew Punctuation Paseq

Hebrew Punctuation Sof Pasuq

Hebrew Punctuation Nun Hafukha

Hebrew Punctuation Geresh

Hebrew Punctuation Gershayim

Arabic Number Sign

Arabic Sign Sanah

Arabic Footnote Marker

Arabic Sign Safha

Arabic Sign Samvat

Arabic Number Mark Above

Arabic-Indic Cube Root

Arabic-Indic Fourth Root

Arabic-Indic Per Mille Sign

Arabic-Indic Per Ten Thousand Sign

Arabic Date Separator

Arabic Poetic Verse Sign

Arabic Sign Misra

Arabic Semicolon

Arabic Letter Mark

Arabic End of Text Mark

Arabic Triple Dot Punctuation Mark

Arabic Question Mark

Arabic Percent Sign

Arabic Decimal Separator

Arabic Thousands Separator

Arabic Five Pointed Star

Arabic Full Stop

Arabic End of Ayah

Arabic Start of Rub El Hizb

Arabic Place of Sajdah

Arabic Sign Sindhi Ampersand

Arabic Sign Sindhi Postposition Men

Syriac End of Paragraph

Syriac Supralinear Full Stop

Syriac Sublinear Full Stop

Syriac Supralinear Colon

Syriac Sublinear Colon

Syriac Horizontal Colon

Syriac Colon Skewed Left

Syriac Colon Skewed Right

Syriac Supralinear Colon Skewed Left

Syriac Sublinear Colon Skewed Right

Syriac Contraction

Syriac Harklean Obelus

Syriac Harklean Metobelus

Syriac Harklean Asteriscus

Syriac Abbreviation Mark

NKo Symbol Oo Dennen

NKo Symbol Gbakurunen

NKo Exclamation Mark

NKo Dorome Sign

Samaritan Punctuation Nequdaa

Samaritan Punctuation Afsaaq

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