Pattern Syntax - Yes

Unicode Version 18.0

Yes is the designation for characters that Unicode officially recognizes as valid syntax elements within regular expression patterns, meaning they are permitted to appear as literals or operators in pattern definitions without needing escaping. This value applies to a specific set of punctuation marks, such as brackets, parentheses, asterisks, plus signs, question marks, and backslashes, which have well defined roles in pattern matching logic. Characters marked with "Yes" are excluded from being treated as ordinary text in such contexts, ensuring that pattern parsers can reliably interpret their intended function. This designation helps distinguish syntactically active symbols from those that are purely content characters, providing a consistent baseline for regex engines across different programming languages and tools.

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Square Right Open Box Operator

Closed Superset

Closed Subset or Equal To

Closed Superset or Equal To

Subset Above Superset

Superset Above Subset

Subset Above Subset

Superset Above Superset

Superset Beside Subset

Superset Beside and Joined by Dash with Subset

Element of Opening Downwards

Pitchfork with Tee Top

Transversal Intersection

Short Left Tack

Short down Tack

Perpendicular with S

Vertical Bar Triple Right Turnstile

Double Vertical Bar Left Turnstile

Vertical Bar Double Left Turnstile

Double Vertical Bar Double Left Turnstile

Long Dash from Left Member of Double Vertical

Short down Tack with Overbar

Short Up Tack with Underbar

Short Up Tack Above Short down Tack

Double down Tack

Double Stroke Not Sign

Reversed Double Stroke Not Sign

Does Not Divide with Reversed Negation Slash

Vertical Line with Circle Above

Vertical Line with Circle Below

Down Tack with Circle Below

Parallel with Horizontal Stroke

Parallel with Tilde Operator

Triple Vertical Bar Binary Relation

Triple Vertical Bar with Horizontal Stroke

Triple Colon Operator

Triple Nested Less-Than

Triple Nested Greater-Than

Double-Line Slanted Less-than or Equal To

Double-Line Slanted Greater-than or Equal To

Triple Solidus Binary Relation

Large Triple Vertical Bar Operator

Double Solidus Operator

White Vertical Bar

N-Ary White Vertical Bar

North East White Arrow

North West White Arrow

South East White Arrow

South West White Arrow

Left Right White Arrow

Leftwards Black Arrow

Upwards Black Arrow

Downwards Black Arrow

North East Black Arrow

North West Black Arrow

South East Black Arrow

South West Black Arrow

Left Right Black Arrow

Up down Black Arrow

Rightwards Arrow with Tip Downwards

Rightwards Arrow with Tip Upwards

Leftwards Arrow with Tip Downwards

Leftwards Arrow with Tip Upwards

Square with Top Half Black

Square with Bottom Half Black

Square with Upper Right Diagonal Half Black

Square with Lower Left Diagonal Half Black

Diamond with Left Half Black

Diamond with Right Half Black

Diamond with Top Half Black

Diamond with Bottom Half Black

Black Large Square

White Large Square

Black Very Small Square

White Very Small Square

Horizontal Black Hexagon

Black Large Circle

Black Medium Diamond

White Medium Diamond

Black Medium Lozenge

White Medium Lozenge

Black Small Diamond

Black Small Lozenge

White Small Lozenge

Black Horizontal Ellipse

White Horizontal Ellipse

Black Vertical Ellipse

White Vertical Ellipse

Left Arrow with Small Circle

Three Leftwards Arrows

Left Arrow with Circled Plus

Long Leftwards Squiggle Arrow

Leftwards Two-Headed Arrow with Vertical Stroke

Leftwards Two-Headed Arrow with Double Vertical Stroke

Leftwards Two-Headed Arrow from Bar

Leftwards Two-Headed Triple Dash Arrow

Leftwards Arrow with Dotted Stem

Leftwards Arrow with Tail with Vertical Stroke

Leftwards Arrow with Tail with Double Vertical Stroke

Leftwards Two-Headed Arrow with Tail

Leftwards Two-Headed Arrow with Tail with Vertical Stroke

Leftwards Two-Headed Arrow with Tail with Double Vertical Stroke

Leftwards Arrow Through X

Wave Arrow Pointing Directly Left

Equals Sign Above Leftwards Arrow

Reverse Tilde Operator Above Leftwards Arrow

Leftwards Arrow Above Reverse Almost Equal To

Rightwards Arrow Through Greater-Than

Rightwards Arrow Through Superset

Leftwards Quadruple Arrow

Rightwards Quadruple Arrow

Reverse Tilde Operator Above Rightwards Arrow

Rightwards Arrow Above Reverse Almost Equal To

Tilde Operator Above Leftwards Arrow

Leftwards Arrow Above Almost Equal To

Leftwards Arrow Above Reverse Tilde Operator

Rightwards Arrow Above Reverse Tilde Operator

Downwards Triangle-Headed Zigzag Arrow

Short Slanted North Arrow

Short Backslanted South Arrow

White Medium Star

Black Small Star

White Small Star

Black Right-Pointing Pentagon

White Right-Pointing Pentagon

Heavy Large Circle

Heavy Oval with Oval Inside

Heavy Circle with Circle Inside

Heavy Circled Saltire

Slanted North Arrow with Hooked Head

Backslanted South Arrow with Hooked Tail

Slanted North Arrow with Horizontal Tail

Backslanted South Arrow with Horizontal Tail

Bent Arrow Pointing Downwards Then North East

Short Bent Arrow Pointing Downwards Then North East

Leftwards Triangle-Headed Arrow

Upwards Triangle-Headed Arrow

Rightwards Triangle-Headed Arrow

Downwards Triangle-Headed Arrow

Left Right Triangle-Headed Arrow

Up down Triangle-Headed Arrow

North West Triangle-Headed Arrow

North East Triangle-Headed Arrow

South East Triangle-Headed Arrow

South West Triangle-Headed Arrow

Leftwards Triangle-Headed Dashed Arrow

Upwards Triangle-Headed Dashed Arrow

Rightwards Triangle-Headed Dashed Arrow

Downwards Triangle-Headed Dashed Arrow

Clockwise Triangle-Headed Open Circle Arrow

Anticlockwise Triangle-Headed Open Circle Arrow

Leftwards Triangle-Headed Arrow to Bar

Upwards Triangle-Headed Arrow to Bar

Rightwards Triangle-Headed Arrow to Bar

Downwards Triangle-Headed Arrow to Bar

North West Triangle-Headed Arrow to Bar

North East Triangle-Headed Arrow to Bar

South East Triangle-Headed Arrow to Bar

South West Triangle-Headed Arrow to Bar

Leftwards Triangle-Headed Arrow with Double Horizontal Stroke

Upwards Triangle-Headed Arrow with Double Horizontal Stroke

Rightwards Triangle-Headed Arrow with Double Horizontal Stroke

Downwards Triangle-Headed Arrow with Double Horizontal Stroke

Horizontal Tab Key

Vertical Tab Key

Leftwards Triangle-Headed Arrow over Rightwards Triangle-Headed Arrow

Upwards Triangle-Headed Arrow Leftwards of Downwards Triangle-Headed Arrow

Rightwards Triangle-Headed Arrow over Leftwards Triangle-Headed Arrow

Downwards Triangle-Headed Arrow Leftwards of Upwards Triangle-Headed Arrow

Leftwards Triangle-Headed Paired Arrows

Upwards Triangle-Headed Paired Arrows

Rightwards Triangle-Headed Paired Arrows

Downwards Triangle-Headed Paired Arrows

Leftwards Black Circled White Arrow

Upwards Black Circled White Arrow

Rightwards Black Circled White Arrow

Downwards Black Circled White Arrow

Anticlockwise Triangle-Headed Right U-Shaped Arrow

Anticlockwise Triangle-Headed Bottom U-Shaped Arrow

Anticlockwise Triangle-Headed Left U-Shaped Arrow

Anticlockwise Triangle-Headed Top U-Shaped Arrow

Four Corner Arrows Circling Anticlockwise

Rightwards Black Arrow

Equals Sign with Infinity Above

Symbol for Type A Electronics

Three-D Top-Lighted Leftwards Equilateral Arrowhead

Three-D Right-Lighted Upwards Equilateral Arrowhead

Three-D Top-Lighted Rightwards Equilateral Arrowhead

Three-D Left-Lighted Downwards Equilateral Arrowhead

Black Leftwards Equilateral Arrowhead

Black Upwards Equilateral Arrowhead

Black Rightwards Equilateral Arrowhead

Black Downwards Equilateral Arrowhead

Downwards Triangle-Headed Arrow with Long Tip Leftwards

Downwards Triangle-Headed Arrow with Long Tip Rightwards

Upwards Triangle-Headed Arrow with Long Tip Leftwards

Upwards Triangle-Headed Arrow with Long Tip Rightwards

Leftwards Triangle-Headed Arrow with Long Tip Upwards

Rightwards Triangle-Headed Arrow with Long Tip Upwards

Leftwards Triangle-Headed Arrow with Long Tip Downwards

Rightwards Triangle-Headed Arrow with Long Tip Downwards

Black Curved Downwards and Leftwards Arrow

Black Curved Downwards and Rightwards Arrow

Black Curved Upwards and Leftwards Arrow

Black Curved Upwards and Rightwards Arrow

Black Curved Leftwards and Upwards Arrow

Black Curved Rightwards and Upwards Arrow

Black Curved Leftwards and Downwards Arrow

Black Curved Rightwards and Downwards Arrow

Ribbon Arrow down Left

Ribbon Arrow down Right

Ribbon Arrow Up Left

Ribbon Arrow Up Right

Ribbon Arrow Left Up

Ribbon Arrow Right Up

Ribbon Arrow Left Down

Ribbon Arrow Right Down

Upwards White Arrow from Bar with Horizontal Bar

Up Arrowhead in A Rectangle Box

Overlapping White Squares

Overlapping White and Black Squares

Overlapping Black Squares

Ballot Box with Light X

Black Square Centred

Black Diamond Centred

Turned Black Pentagon

Horizontal Black Octagon

Black Medium Up-Pointing Triangle Centred

Black Medium down-Pointing Triangle Centred

Black Medium Left-Pointing Triangle Centred

Black Medium Right-Pointing Triangle Centred

Neptune Form Two

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