Method code for $list.grep()

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---

  1: arg lines, regexp;
  2: var line, result, out, reg;
  3: 
  4: out = [];
  5: for line in [1 .. lines.length()] {
  6:     if ((reg = match_regexp(lines[line], regexp)))
  7:         out += [[line, reg, lines[line]]];
  8: }
  9: return out;

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// Created 27-Mar-1995 as a part of ColdCore, see: @help Credit