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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | 3x 3x 721x 721x 721x 669x 669x 52x 52x 52x 52x 328x 426x 426x 18x 18x 426x 10x 10x 426x 2x 2x 426x 48x 48x 426x 46x 46x 426x 302x 426x 425x 83x 83x 124x 124x 124x 721x 721x 3x 3x 18x 18x 3x 3x 3x 30x 30x 30x 30x 42x 30x 30x | const escapeRE = /["'&<>]/
export function escapeHtml(string: unknown): string {
const str = '' + string
const match = escapeRE.exec(str)
if (!match) {
return str
}
let html = ''
let escaped: string
let index: number
let lastIndex = 0
for (index = match.index; index < str.length; index++) {
switch (str.charCodeAt(index)) {
case 34: // "
escaped = '"'
break
case 38: // &
escaped = '&'
break
case 39: // '
escaped = '''
break
case 60: // <
escaped = '<'
break
case 62: // >
escaped = '>'
break
default:
continue
}
if (lastIndex !== index) {
html += str.slice(lastIndex, index)
}
lastIndex = index + 1
html += escaped
}
return lastIndex !== index ? html + str.slice(lastIndex, index) : html
}
// https://www.w3.org/TR/html52/syntax.html#comments
const commentStripRE = /^-?>|<!--|-->|--!>|<!-$/g
export function escapeHtmlComment(src: string): string {
return src.replace(commentStripRE, '')
}
export const cssVarNameEscapeSymbolsRE: RegExp =
/[ !"#$%&'()*+,./:;<=>?@[\\\]^`{|}~]/g
export function getEscapedCssVarName(
key: string,
doubleEscape: boolean,
): string {
return key.replace(cssVarNameEscapeSymbolsRE, s =>
doubleEscape ? (s === '"' ? '\\\\\\"' : `\\\\${s}`) : `\\${s}`,
)
}
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