46 lines
1.9 KiB
TypeScript
46 lines
1.9 KiB
TypeScript
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// 4.5. Code points https://infra.spec.whatwg.org/#code-points
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export class CodePoints {
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// https://infra.spec.whatwg.org/#ascii-code-point
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public static ASCIICodePoint(input: string): boolean {
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// An ASCII code point is a code point in the range U+0000 NULL to U+007F DELETE, inclusive.
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// eslint-disable-next-line no-control-regex
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return /[\u0000-\u007F]/.test(input);
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}
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// https://infra.spec.whatwg.org/#ascii-alphanumeric
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public static ASCIIAlphanumeric(input: string): boolean {
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// An ASCII alphanumeric is an ASCII digit or ASCII alpha.
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return this.ASCIIiAlpha(input) || this.ASCIIDigit(input);
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}
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// https://infra.spec.whatwg.org/#ascii-alpha
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public static ASCIIiAlpha(input: string): boolean {
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// An ASCII alpha is an ASCII upper alpha or ASCII lower alpha.
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return this.ASCIIUpperAlpha(input) || this.ASCIILowerAlpha(input);
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}
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// https://infra.spec.whatwg.org/#ascii-upper-alpha
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public static ASCIIUpperAlpha(input: string): boolean {
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// An ASCII upper alpha is a code point in the range U+0041 (A) to U+005A (Z), inclusive.
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return /[\u0041-\u005A]/.test(input);
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}
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// https://infra.spec.whatwg.org/#ascii-lower-alpha
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public static ASCIILowerAlpha(input: string): boolean {
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// An ASCII lower alpha is a code point in the range U+0061 (a) to U+007A (z), inclusive.
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return /[\u0061-\u007A]/.test(input);
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}
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// https://infra.spec.whatwg.org/#ascii-digit
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public static ASCIIDigit(input: string): boolean {
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// An ASCII digit is a code point in the range U+0030 (0) to U+0039 (9), inclusive.
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return /[\u0030-\u0039]/.test(input);
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}
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// https://infra.spec.whatwg.org/#ascii-string
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public static ASCIIString(input: string): boolean {
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// An ASCII string is a string whose code points are all ASCII code points.
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return input.split('').every(codePoint => this.ASCIICodePoint(codePoint));
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}
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}
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