OneBot: Leantime 改造版源码（BOM/Univer 表格/AI 接管/品牌替换等）

dev/DWGViewer/js/mtext.js

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+/**
+ * MTEXT / TEXT 的文字内容解析。
+ *
+ * MTEXT 的正文里混着 AutoCAD 的格式码（\P 换行、\H 字高、\S 堆叠、{} 分组……），
+ * 直接画出来会满屏乱码，所以这里把它拆成「行 → 文字段(run)」的结构，
+ * 每个 run 带自己的字高倍数、宽度因子、倾斜、粗斜体、颜色和下划线。
+ */
+
+/** %%d 之类的控制码（TEXT 与 MTEXT 通用） */
+function replaceSpecial(s) {
+  return s
+    .replace(/%%[dD]/g, '°')   // 度
+    .replace(/%%[cC]/g, '∅')   // 直径 ⌀
+    .replace(/%%[pP]/g, '±')   // 正负
+    .replace(/%%%/g, '%')
+}
+
+/** \U+00B0 形式的 Unicode 转义 */
+function replaceUnicode(s) {
+  return s.replace(/\\U\+([0-9A-Fa-f]{4})/g, (_, h) => String.fromCharCode(parseInt(h, 16)))
+}
+
+const BASE_STYLE = {
+  hFactor: 1,        // 相对于实体 textHeight 的倍数
+  wFactor: 1,
+  oblique: 0,
+  bold: false,
+  italic: false,
+  font: null,
+  color: null,       // ACI 索引或 0xRRGGBB（带 trueColor 标记）
+  underline: false,
+  overline: false,
+  strike: false,
+  rise: 0,           // 相对基线的抬升（堆叠分数用），单位为字高倍数
+}
+
+/**
+ * 解析 MTEXT 正文。
+ * @returns {{lines: Array<Array<Run>>, columnBreaks: number[]}}
+ */
+export function parseMText(raw) {
+  const lines = [[]]
+  if (!raw) return { lines }
+  const text = replaceUnicode(raw)
+  const stack = []
+  let st = { ...BASE_STYLE }
+  let buf = ''
+
+  const flush = () => {
+    if (!buf) return
+    lines[lines.length - 1].push({ ...st, text: replaceSpecial(buf) })
+    buf = ''
+  }
+  const newLine = () => { flush(); lines.push([]) }
+
+  // 读到分号为止的参数
+  let i = 0
+  const readArg = () => {
+    let out = ''
+    while (i < text.length && text[i] !== ';') { out += text[i]; i++ }
+    i++ // 吃掉 ;
+    return out
+  }
+
+  while (i < text.length) {
+    const ch = text[i]
+    if (ch === '\\') {
+      const c = text[i + 1]
+      i += 2
+      switch (c) {
+        case 'P': newLine(); break
+        case 'X': newLine(); break
+        case '~': buf += ' '; break
+        case '\\': buf += '\\'; break
+        case '{': buf += '{'; break
+        case '}': buf += '}'; break
+        case 'L': flush(); st = { ...st, underline: true }; break
+        case 'l': flush(); st = { ...st, underline: false }; break
+        case 'O': flush(); st = { ...st, overline: true }; break
+        case 'o': flush(); st = { ...st, overline: false }; break
+        case 'K': flush(); st = { ...st, strike: true }; break
+        case 'k': flush(); st = { ...st, strike: false }; break
+        case 'H': {
+          flush()
+          const a = readArg()
+          const rel = /x$/i.test(a)
+          const v = parseFloat(a)
+          if (isFinite(v)) st = { ...st, hFactor: rel ? st.hFactor * v : v }
+          break
+        }
+        case 'W': { flush(); const v = parseFloat(readArg()); if (isFinite(v) && v > 0) st = { ...st, wFactor: v }; break }
+        case 'Q': { flush(); const v = parseFloat(readArg()); if (isFinite(v)) st = { ...st, oblique: (v * Math.PI) / 180 }; break }
+        case 'T': { readArg(); break }        // 字间距，忽略
+        case 'A': { readArg(); break }        // 对齐，交由整体对齐处理
+        case 'p': { readArg(); break }        // 段落属性，忽略
+        case 'C': { flush(); const v = parseInt(readArg(), 10); if (isFinite(v)) st = { ...st, color: { aci: v } }; break }
+        case 'c': { flush(); const v = parseInt(readArg(), 10); if (isFinite(v)) st = { ...st, color: { rgb: bgrToRgb(v) } }; break }
+        case 'F':
+        case 'f': {
+          flush()
+          const a = readArg()
+          const parts = a.split('|')
+          const next = { ...st, font: parts[0] || null }
+          for (const p of parts.slice(1)) {
+            if (/^b1$/i.test(p)) next.bold = true
+            else if (/^b0$/i.test(p)) next.bold = false
+            else if (/^i1$/i.test(p)) next.italic = true
+            else if (/^i0$/i.test(p)) next.italic = false
+          }
+          st = next
+          break
+        }
+        case 'S': {
+          // 堆叠分数： 上^下;  上/下;  上#下;
+          flush()
+          let a = ''
+          while (i < text.length && text[i] !== ';') { a += text[i]; i++ }
+          i++
+          const m = a.match(/^(.*?)([\^\/#])(.*)$/)
+          if (m) {
+            const upper = replaceSpecial(m[1]), lower = replaceSpecial(m[3])
+            const small = { ...st, hFactor: st.hFactor * 0.65 }
+            const arr = lines[lines.length - 1]
+            if (upper) arr.push({ ...small, text: upper, rise: 0.55 })
+            if (m[2] !== '^' && upper && lower) arr.push({ ...small, text: '/', rise: 0 })
+            if (lower) arr.push({ ...small, text: lower, rise: -0.25 })
+          } else if (a) {
+            buf += replaceSpecial(a)
+          }
+          break
+        }
+        default:
+          // 未知转义，原样保留字符
+          if (c != null) buf += c
+      }
+    } else if (ch === '{') {
+      flush(); stack.push({ ...st }); i++
+    } else if (ch === '}') {
+      flush(); if (stack.length) st = stack.pop(); i++
+    } else if (ch === '\n') {
+      newLine(); i++
+    } else if (ch === '\r') {
+      i++
+    } else {
+      buf += ch; i++
+    }
+  }
+  flush()
+  return { lines }
+}
+
+/** DXF 的 true color 在 MTEXT 里是 BGR 顺序 */
+function bgrToRgb(v) {
+  const b = (v >> 16) & 0xff, g = (v >> 8) & 0xff, r = v & 0xff
+  return (r << 16) | (g << 8) | b
+}
+
+/** 单行 TEXT / ATTRIB 的内容处理 */
+export function parseSimpleText(raw) {
+  if (!raw) return ''
+  return replaceSpecial(replaceUnicode(String(raw)))
+    .replace(/%%[uUoO]/g, '')   // 下划线/上划线开关，画不出来就去掉标记
+}