feat/issue-extract-contract/main #22
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/**
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* 議題 body 的 markdown 解析。
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*
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* 純函式,不碰網路也不碰檔案系統:抽取類腳本的解析全部走這裡,
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* 解析規則只寫一次,需求議題與工作包議題共用同一套。
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*/
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/**
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* 依 `## 標題` 切出各段落。
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* 圍欄區塊(```)內的內容一律不當成標題,否則 mermaid 或程式碼裡的井字號會把段落切碎。
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* @param {string} body 議題 body
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* @returns {Map<string, string>} 段落名稱 → 該段內容(前後空白已修掉)
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*/
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export function parseSections(body) {
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const sections = new Map();
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const buffer = [];
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let current = null;
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let inFence = false;
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const flush = () => {
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if (current !== null) sections.set(current, buffer.join('\n').trim());
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buffer.length = 0;
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};
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for (const line of (body ?? '').split('\n')) {
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if (/^\s*```/.test(line)) inFence = !inFence;
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const heading = inFence ? null : line.match(/^##\s+(.+?)\s*$/);
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if (heading) {
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flush();
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current = heading[1];
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continue;
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}
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if (current !== null) buffer.push(line);
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}
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flush();
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return sections;
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}
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/**
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* 取出文字型段落的整段內容。段落不存在時回空字串,不報錯 ——
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* 缺段落是模板的正常變體,不是解析失敗。
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* @param {Map<string, string>} sections
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* @param {string} name
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* @returns {string}
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*/
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export function textSection(sections, name) {
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return sections.get(name) ?? '';
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}
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/**
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* 取出列表型段落的每一項。符號清單與編號清單一視同仁,
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* checkbox 只留文字不留標記 —— 需求議題的驗收標準不追蹤勾選狀態。
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* @param {Map<string, string>} sections
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* @param {string} name
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* @returns {string[]}
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*/
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export function listSection(sections, name) {
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const content = sections.get(name);
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if (!content) return [];
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return content
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.split('\n')
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.map((line) => line.match(/^\s*(?:[-*+]|\d+\.)\s+(.*)$/))
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.filter((match) => match !== null)
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.map((match) => match[1].replace(/^\[[ xX]\]\s*/, '').trim())
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.filter((text) => text !== '');
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}
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/**
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* 取出兩欄表格型段落。以分隔列(|---|---|)為界,之後才是資料列;
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* 沒有分隔列就當成沒有資料,避免把表頭當成一筆名詞。
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* @param {Map<string, string>} sections
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* @param {string} name
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* @returns {{term: string, def: string}[]}
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*/
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export function tableSection(sections, name) {
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const content = sections.get(name);
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if (!content) return [];
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const rows = content
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.split('\n')
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.filter((line) => line.trim().startsWith('|'))
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.map((line) => line.trim().replace(/^\||\|$/g, '').split('|').map((cell) => cell.trim()));
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const separator = rows.findIndex((cells) => cells.every((cell) => /^:?-+:?$/.test(cell)));
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if (separator === -1) return [];
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return rows
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.slice(separator + 1)
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.filter((cells) => cells.length >= 2 && cells.some((cell) => cell !== ''))
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.map(([term, def]) => ({ term, def }));
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}
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