@kedao/editor/lib/extensions/markdown/modifiers/handleNewCodeBlock.js

Rich Text Editor Based On Draft.js

import changeCurrentBlockType from './changeCurrentBlockType';
import insertEmptyBlock from './insertEmptyBlock';
const handleNewCodeBlock = (editorState) => {
    const contentState = editorState.getCurrentContent();
    const selection = editorState.getSelection();
    const key = selection.getStartKey();
    const currentBlock = contentState.getBlockForKey(key);
    const matchData = /^```([\w-]+)?$/.exec(currentBlock.getText());
    const isLast = selection.getEndOffset() === currentBlock.getLength();
    if (matchData && isLast) {
        const data = {};
        const language = matchData[1];
        if (language) {
            data.language = language;
        }
        return changeCurrentBlockType(editorState, 'code-block', '', data);
    }
    const type = currentBlock.getType();
    if (type === 'code-block' && isLast) {
        return insertEmptyBlock(editorState, 'code-block', currentBlock.getData());
    }
    return editorState;
};
export default handleNewCodeBlock;
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