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authortoasted-nutbread <toasted-nutbread@users.noreply.github.com>2022-08-20 13:11:38 -0400
committerGitHub <noreply@github.com>2022-08-20 13:11:38 -0400
commit4194252fe363e9737abf4aa407d8ce14e7743559 (patch)
tree019470a3f9bf0e18718cb1de69e8a5ae84c5b2d6 /ext/js/dom
parentd3807d88ecf40b2c37ed31d823af038a091ffca0 (diff)
New StringUtil (#2216)
* Create new StringUtil * Use StringUtil in DOMTextScanner * Fix order
Diffstat (limited to 'ext/js/dom')
-rw-r--r--ext/js/dom/dom-text-scanner.js46
1 files changed, 6 insertions, 40 deletions
diff --git a/ext/js/dom/dom-text-scanner.js b/ext/js/dom/dom-text-scanner.js
index 7bed94a9..20aec9af 100644
--- a/ext/js/dom/dom-text-scanner.js
+++ b/ext/js/dom/dom-text-scanner.js
@@ -15,6 +15,10 @@
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
+/* global
+ * StringUtil
+ */
+
/**
* A class used to scan text in a document.
*/
@@ -146,44 +150,6 @@ class DOMTextScanner {
// Private
/**
- * Reads a code point in a string in the forward direction.
- * @param {string} text The text to read the code point from.
- * @param {number} position The index of the first character to read.
- * @returns {string} The code point from the string.
- */
- _readCodePointForward(text, position) {
- let char = text[position];
- const charCode = char.charCodeAt(0);
- if (charCode >= 0xd800 && charCode < 0xdc00 && ++position < text.length) {
- const char2 = text[position];
- const charCode2 = char2.charCodeAt(0);
- if (charCode2 >= 0xdc00 && charCode2 < 0xe000) {
- char += char2;
- }
- }
- return char;
- }
-
- /**
- * Reads a code point in a string in the backward direction.
- * @param {string} text The text to read the code point from.
- * @param {number} position The index of the first character to read.
- * @returns {string} The code point from the string.
- */
- _readCodePointBackward(text, position) {
- let char = text[position];
- const charCode = char.charCodeAt(0);
- if (charCode >= 0xdc00 && charCode < 0xe000 && position > 0) {
- const char2 = text[position - 1];
- const charCode2 = char2.charCodeAt(0);
- if (charCode2 >= 0xd800 && charCode2 < 0xdc00) {
- char = char2 + char;
- }
- }
- return char;
- }
-
- /**
* Seeks forward in a text node.
* @param {Text} textNode The text node to use.
* @param {boolean} resetOffset Whether or not the text offset should be reset.
@@ -202,7 +168,7 @@ class DOMTextScanner {
let newlines = this._newlines;
while (offset < nodeValueLength) {
- const char = this._readCodePointForward(nodeValue, offset);
+ const char = StringUtil.readCodePointsForward(nodeValue, offset, 1);
offset += char.length;
const charAttributes = DOMTextScanner.getCharacterAttributes(char, preserveNewlines, preserveWhitespace);
@@ -288,7 +254,7 @@ class DOMTextScanner {
let newlines = this._newlines;
while (offset > 0) {
- const char = this._readCodePointBackward(nodeValue, offset - 1);
+ const char = StringUtil.readCodePointsBackward(nodeValue, offset - 1, 1);
offset -= char.length;
const charAttributes = DOMTextScanner.getCharacterAttributes(char, preserveNewlines, preserveWhitespace);