Function getCodeBlockLanguage

scripts/injectGptButton.js:211–228

(preNode, codeNode)

        };

        const getCodeBlockLanguage = (preNode, codeNode) => {
            const classLanguage = codeNode.className.match(/language-([a-zA-Z0-9_+-]+)/)?.[1];
            if (classLanguage) {
                return normalizeCodeLanguage(classLanguage);
            }

            const labels = Array.from(preNode.querySelectorAll('div'))
                .filter(element => !element.contains(codeNode))
                .map(element => element.textContent?.trim() || '')
                .filter(text => text && text.length <= 30 && !/复制|copy/i.test(text));

            for (const label of labels) {
                const language = normalizeCodeLanguage(label);
                if (language) return language;
            }

            return '';
        };

        // Process all child nodes
        const processNode = (node, indent = 0, inListItem = false, trimText = false) => {