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Code Issues Releases Wiki Activity

improved escape function

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Nguyễn Việt Hưng
2018-07-04 15:27:30 +07:00
parent 7d9f309e04
commit 55d86d853a
1 changed files with 18 additions and 1 deletions
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19
browser/lib/utils.js
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@@ -6,7 +6,7 @@ export function lastFindInArray (array, callback) {
} }
} }
function escapeHtmlCharacters (html) { export function escapeHtmlCharacters (html) {
const matchHtmlRegExp = /["'&<>]/g const matchHtmlRegExp = /["'&<>]/g
const escapes = ['&quot;', '&amp;', '&#39;', '&lt;', '&gt;'] const escapes = ['&quot;', '&amp;', '&#39;', '&lt;', '&gt;']
let match = null let match = null
@@ -15,8 +15,25 @@ function escapeHtmlCharacters (html) {
replace + replace +
str.substr(index + replace.length - (replace.length - 1)) str.substr(index + replace.length - (replace.length - 1))
// detecting code block
while ((match = matchHtmlRegExp.exec(html)) != null) { while ((match = matchHtmlRegExp.exec(html)) != null) {
const current = { char: match[0], index: match.index } 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
}
// otherwise, escape it !!!
if (current.char === '&') { if (current.char === '&') {
let nextStr = '' let nextStr = ''
let nextIndex = current.index let nextIndex = current.index