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//! General Categories
const Data = struct {
s1: []const u16 = undefined,
s2: []const u5 = undefined,
s3: []const u5 = undefined,
};
const general_categories = general_categories: {
const data = @import("gencat");
break :general_categories Data{
.s1 = &data.s1,
.s2 = &data.s2,
.s3 = &data.s3,
};
};
/// General Category
pub const Gc = enum {
Cc, // Other, Control
Cf, // Other, Format
Cn, // Other, Unassigned
Co, // Other, Private Use
Cs, // Other, Surrogate
Ll, // Letter, Lowercase
Lm, // Letter, Modifier
Lo, // Letter, Other
Lu, // Letter, Uppercase
Lt, // Letter, Titlecase
Mc, // Mark, Spacing Combining
Me, // Mark, Enclosing
Mn, // Mark, Non-Spacing
Nd, // Number, Decimal Digit
Nl, // Number, Letter
No, // Number, Other
Pc, // Punctuation, Connector
Pd, // Punctuation, Dash
Pe, // Punctuation, Close
Pf, // Punctuation, Final quote (may behave like Ps or Pe depending on usage)
Pi, // Punctuation, Initial quote (may behave like Ps or Pe depending on usage)
Po, // Punctuation, Other
Ps, // Punctuation, Open
Sc, // Symbol, Currency
Sk, // Symbol, Modifier
Sm, // Symbol, Math
So, // Symbol, Other
Zl, // Separator, Line
Zp, // Separator, Paragraph
Zs, // Separator, Space
};
/// Lookup the General Category for `cp`.
pub fn gc(cp: u21) Gc {
return @enumFromInt(general_categories.s3[general_categories.s2[general_categories.s1[cp >> 8] + (cp & 0xff)]]);
}
/// True if `cp` has an C general category.
pub fn isControl(cp: u21) bool {
return switch (gc(cp)) {
.Cc,
.Cf,
.Cn,
.Co,
.Cs,
=> true,
else => false,
};
}
/// True if `cp` has an L general category.
pub fn isLetter(cp: u21) bool {
return switch (gc(cp)) {
.Ll,
.Lm,
.Lo,
.Lu,
.Lt,
=> true,
else => false,
};
}
/// True if `cp` has an M general category.
pub fn isMark(cp: u21) bool {
return switch (gc(cp)) {
.Mc,
.Me,
.Mn,
=> true,
else => false,
};
}
/// True if `cp` has an N general category.
pub fn isNumber(cp: u21) bool {
return switch (gc(cp)) {
.Nd,
.Nl,
.No,
=> true,
else => false,
};
}
/// True if `cp` has an P general category.
pub fn isPunctuation(cp: u21) bool {
return switch (gc(cp)) {
.Pc,
.Pd,
.Pe,
.Pf,
.Pi,
.Po,
.Ps,
=> true,
else => false,
};
}
/// True if `cp` has an S general category.
pub fn isSymbol(cp: u21) bool {
return switch (gc(cp)) {
.Sc,
.Sk,
.Sm,
.So,
=> true,
else => false,
};
}
/// True if `cp` has an Z general category.
pub fn isSeparator(cp: u21) bool {
return switch (gc(cp)) {
.Zl,
.Zp,
.Zs,
=> true,
else => false,
};
}
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