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allow detect code block or not in escapeHtml function

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Nguyễn Việt Hưng
2018-07-06 23:45:18 +07:00
parent 9cc7b8bcc6
commit bc640834cd
2 changed files with 18 additions and 16 deletions
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32
browser/lib/utils.js
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@@ -6,7 +6,7 @@ export function lastFindInArray (array, callback) {
}
}
export function escapeHtmlCharacters (html) {
export function escapeHtmlCharacters (html, opt = { detectCodeBlock: false }) {
const matchHtmlRegExp = /["'&<>]/g
const escapes = ['&quot;', '&amp;', '&#39;', '&lt;', '&gt;']
let match = null
@@ -18,20 +18,22 @@ export function escapeHtmlCharacters (html) {
// detecting code block
while ((match = matchHtmlRegExp.exec(html)) != null) {
const current = { char: match[0], index: match.index }
// position of the nearest line start
let previousLineEnd = current.index - 1
while (html[previousLineEnd] !== '\n' && previousLineEnd !== -1) {
previousLineEnd--
}
// 4 spaces means this character is in a code block
if (
html[previousLineEnd + 1] === ' ' &&
html[previousLineEnd + 2] === ' ' &&
html[previousLineEnd + 3] === ' ' &&
html[previousLineEnd + 4] === ' '
) {
// so skip it
continue
if (opt.detectCodeBlock) {
// position of the nearest line start
let previousLineEnd = current.index - 1
while (html[previousLineEnd] !== '\n' && previousLineEnd !== -1) {
previousLineEnd--
}
// 4 spaces means this character is in a code block
if (
html[previousLineEnd + 1] === ' ' &&
html[previousLineEnd + 2] === ' ' &&
html[previousLineEnd + 3] === ' ' &&
html[previousLineEnd + 4] === ' '
) {
// so skip it
continue
}
}
// otherwise, escape it !!!
if (current.char === '&') {