# See ftp://ftp.unicode.org/Public/3.0-Update/UnicodeData-3.0.0.html

[gc]: General Category

L: Letter
M: Mark
N: Number
Z: Separator
C: Other
P: Punctuation
S: Symbol
Lu: Uppercase
Ll: Lowercase
Lt: Titlecase
Mn: Non-Spacing
Mc: Spacing Combining
Me: Enclosing
Nd: Decimal Digit
Nl: Letter
No: Other
Zs: Space
Zl: Line
Zp: Paragraph
Cc: Control
Cf: Format
Cs: Surrogate
Co: Private Use
Cn: Not Assigned (no characters in the file have this property)
Lm: Modifier
Lo: Other
Pc: Connector
Pd: Dash
Ps: Open
Pe: Close
Pi: Initial quote (may behave like Ps or Pe depending on usage)
Pf: Final quote (may behave like Ps or Pe depending on usage)
Po: Other
Sm: Math
Sc: Currency
Sk: Modifier
So: Other

[bc]: Bidirectional Category

L: Left-to-Right
LRE: Left-to-Right Embedding
LRO: Left-to-Right Override
R: Right-to-Left
AL: Right-to-Left Arabic
RLE: Right-to-Left Embedding
RLO: Right-to-Left Override
PDF: Pop Directional Format
EN: European Number
ES: European Number Separator
ET: European Number Terminator
AN: Arabic Number
CS: Common Number Separator
NSM: Non-Spacing Mark
BN: Boundary Neutral
B: Paragraph Separator
S: Segment Separator
WS: Whitespace
ON: Other Neutrals

[cdm]: Character Decomposition Mapping

font: A font variant (e.g. a blackletter form)
noBreak: A no-break version of a space or hyphen
initial: An initial presentation form (Arabic)
medial: A medial presentation form (Arabic)
final: A final presentation form (Arabic)
isolated: An isolated presentation form (Arabic)
circle: An encircled form
super: A superscript form
sub: A subscript form
vertical: A vertical layout presentation form
wide: A wide (or zenkaku) compatibility character
narrow: A narrow (or hankaku) compatibility character
small: A small variant form (CNS compatibility)
square: A CJK squared font variant
fraction: A vulgar fraction form
compat: Otherwise unspecified compatibility character

[ccc]: Canonical Combining Classes

0: Spacing, split, enclosing, reordrant, and Tibetan subjoined
1: Overlays and interior
7: Nuktas
8: Hiragana/Katakana voicing marks
9: Viramas
10: Start of fixed position classes
199: End of fixed position classes
200: Below left attached
202: Below attached
204: Below right attached
208: Left attached (reordrant around single base character)
210: Right attached
212: Above left attached
214: Above attached
216: Above right attached
218: Below left
220: Below
222: Below right
224: Left (reordrant around single base character)
226: Right
228: Above left
230: Above
232: Above right
233: Double below
234: Double above
240: Below (iota subscript)