Method formatErrors

www/js/_hyperscript.esm.js:1101–1141

(errors)

    this.tokens.matched;
  }
  static formatErrors(errors) {
    if (!errors.length) return "";
    var source = errors[0].source;
    var lines = source.split("\n");
    var byLine = /* @__PURE__ */ new Map();
    for (var e of errors) {
      var lineIdx = e.token?.line ? e.token.line - 1 : lines.length - 1;
      if (!byLine.has(lineIdx)) byLine.set(lineIdx, []);
      byLine.get(lineIdx).push(e);
    }
    var maxLine = Math.max(...byLine.keys()) + 1;
    var gutter = String(maxLine).length;
    var pad = " ".repeat(gutter + 5);
    var sortedLines = [...byLine.entries()].sort((a, b) => a[0] - b[0]);
    var prevLineIdx = -1;
    var out = "";
    for (var [lineIdx, lineErrors] of sortedLines) {
      if (prevLineIdx !== -1 && lineIdx > prevLineIdx + 1) {
        out += " ".repeat(gutter + 1) + "...\n";
      } else if (prevLineIdx === -1 && lineIdx > 0) {
        out += " ".repeat(gutter + 1) + "...\n";
      }
      prevLineIdx = lineIdx;
      var lineNum = String(lineIdx + 1).padStart(gutter);
      var contextLine = lines[lineIdx] || "";
      out += "  " + lineNum + " | " + contextLine + "\n";
      lineErrors.sort((a, b) => (a.column || 0) - (b.column || 0));
      var underlineChars = Array(contextLine.length + 10).fill(" ");
      for (var e of lineErrors) {
        var col = e.token?.line ? e.token.column : Math.max(0, contextLine.length - 1);
        var len = Math.max(1, e.token?.value?.length || 1);
        for (var i = 0; i < len; i++) underlineChars[col + i] = "^";
      }
      out += pad + underlineChars.join("").trimEnd() + "\n";
      for (var e of lineErrors) {
        var col = e.token?.line ? e.token.column : 0;
        out += pad + " ".repeat(col) + e.message + "\n";
      }
    }
    return out;
  }
  // ===========================
  // Token delegation methods
  // ===========================