第一版

lib/bigtext.js

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+import color from "picocolors";
+
+// 计算字符串显示宽度（中文2，英文1）
+function strWidth(str) {
+  let width = 0;
+  for (const char of str) {
+    width += char.charCodeAt(0) > 127 ? 2 : 1;
+  }
+  return width;
+}
+
+// 大字效果框
+export function bigText(text, options = {}) {
+  const { 
+    style = "double",
+    textColor = "yellow",
+    padding = 2,
+  } = options;
+
+  const chars = {
+    block: { tl: "█", tr: "█", bl: "█", br: "█", h: "█", v: "█" },
+    double: { tl: "╔", tr: "╗", bl: "╚", br: "╝", h: "═", v: "║" },
+    simple: { tl: "┌", tr: "┐", bl: "└", br: "┘", h: "─", v: "│" },
+  };
+  
+  const c = chars[style] || chars.double;
+  const lines = text.split("\n");
+  const maxWidth = Math.max(...lines.map(strWidth));
+  const boxWidth = maxWidth + padding * 2;
+  
+  const result = [];
+  result.push(c.tl + c.h.repeat(boxWidth) + c.tr);
+  result.push(c.v + " ".repeat(boxWidth) + c.v);
+  
+  for (const line of lines) {
+    const lineWidth = strWidth(line);
+    const rightPad = maxWidth - lineWidth;
+    result.push(c.v + " ".repeat(padding) + line + " ".repeat(rightPad + padding) + c.v);
+  }
+  
+  result.push(c.v + " ".repeat(boxWidth) + c.v);
+  result.push(c.bl + c.h.repeat(boxWidth) + c.br);
+  
+  const box = result.join("\n");
+  return color[textColor] ? color[textColor](box) : box;
+}