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  <h1 id="firstHeading" class="firstHeading"><span>Diagnostics/Scribunto/Luaj</span></h1>
  <div id="bodyContent" class="mw-body-content">
    <div id="siteSub">From XOWA: the free, open-source, offline wiki application</div>
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    <h2>
      <span class="mw-headline" id="Luaj">Luaj</span>
    </h2>
    <ul>
      <li>
        Applies to the Luaj engine (as opposed to the Lua engine)
      </li>
      <li>
        Calls code in <a href="http://xowa.org/wiki/home/page/Module:Diagnostics/Luaj.html" id="xolnki_2" title="Module:Diagnostics/Luaj">Module:Diagnostics/Luaj</a>
      </li>
      <li>
        Tests changes to the luaj_xowa.jar
      </li>
      <li>
        Further notes available at <a href="http://xowa.org/wiki/home/page/App/Xtn/Mediawiki/Scribunto/Luaj.html" id="xolnki_3" title="App/Xtn/Mediawiki/Scribunto/Luaj">App/Xtn/Mediawiki/Scribunto/Luaj</a>
      </li>
    </ul>
    <h3>
      <span class="mw-headline" id="2.0.3_errors_fixed_in_3.0">2.0.3 errors fixed in 3.0</span>
    </h3>
    <table class="wikitable">
      <tr>
        <th>
          name
        </th>
        <th>
          code
        </th>
        <th>
          actl
        </th>
        <th>
          rslt
        </th>
      </tr>
      <tr>
        <td>
          string.format fails for bad format; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_format_2|%d:%02.f|3|4}}
        </td>
        <td>
          3:04
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          os.time does not handle dates before 1970 on Windows; fails with false on Windows<br>
          NOTE: always fails on Windows with the lua engine
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|os_time|1234|05|06}}
        </td>
        <td>
          true
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          pairs.next fails when setting val to null; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|pairs_next}}
        </td>
        <td>
          ok
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
    </table>
    <h3>
      <span class="mw-headline" id="2.0.3_features_removed_from_3.0">2.0.3 features removed from 3.0</span>
    </h3>
    <table class="wikitable">
      <tr>
        <th>
          name
        </th>
        <th>
          code
        </th>
        <th>
          actl
        </th>
        <th>
          rslt
        </th>
      </tr>
      <tr>
        <td>
          string.gfind deprecated; should be alias to gmatch; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_gfind|ab cd|%w+}}
        </td>
        <td>
          ab
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          tonumber returns original value if value has decimal and base is 10; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|tonumber|12.34|10}}
        </td>
        <td>
          12.34
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          math.log10 deprecated; now calls Math.log10; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|math_log10|100}}
        </td>
        <td>
          2
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          math.mod deprecated; now aliased to math.fmod; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|math_mod|3|2}}
        </td>
        <td>
          1
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          table.maxn deprecated; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|table_maxn}}
        </td>
        <td>
          3
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          table.getn deprecated -- key_is_num; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|table_getn__key_is_num}}
        </td>
        <td>
          3
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          table.getn deprecated -- key_is_str; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|table_getn__key_is_str}}
        </td>
        <td>
          0
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          automatic arg variable in varargs function deprecated; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|varargs_arg}}
        </td>
        <td>
          a
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
    </table>
    <h3>
      <span class="mw-headline" id="3.0_defects">3.0 defects</span>
    </h3>
    <table class="wikitable">
      <tr>
        <th>
          name
        </th>
        <th>
          code
        </th>
        <th>
          actl
        </th>
        <th>
          rslt
        </th>
      </tr>
      <tr>
        <td>
          tonumber should trim all white space, not just \s; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|value_tonumber_trim}}
        </td>
        <td>
          123
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.rep fails if negative repetition; return ""; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_rep_test|a|-1}}
        </td>
        <td>
          pass:
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.gsub fails with ArrayIndexOutOfBoundsException; check for OutOfBounds; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_gsub|a#b|#|}}
        </td>
        <td>
          ab
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.gsub fails if src is empty string; exit early if empty; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_gsub||%b&lt;&gt;|}}
        </td>
        <td>
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.gmatch: non-match
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_gmatch|a|[^,]*}}
        </td>
        <td>
          a;;
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.gmatch: match
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_gmatch|a,b|[^,]*}}
        </td>
        <td>
          a;;b;;
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.gmatch: convert example; plain text
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_gmatch_convert|a}}
        </td>
        <td>
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.gmatch: convert example; lnki
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_gmatch_convert|[[a]]}}
        </td>
        <td>
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.format does not use format args for double; call java.lang.String.format; fails with 1.234
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_format|%.1f|1.234}}
        </td>
        <td>
          1.2
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.format fails for bad format; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_format|(%0.1f%%)|1.234}}
        </td>
        <td>
          (1.2%)
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.format fails if no number after "."; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_format|%02.f|3}}
        </td>
        <td>
          03
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.format fails for char; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_format|%c|97}}
        </td>
        <td>
          a
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          string.format fails for multibyte chars; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_format|âbç%f|1}}
        </td>
        <td>
          âbç1.0
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          multibyte strings not supported; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_multibyte_2}}
        </td>
        <td>
          â
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          multibyte strings not supported; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_multibyte_3}}
        </td>
        <td>
          อา
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          multibyte chars in lua variables; used to return "?"
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|ustring_match_multibyte|𠀀}}
        </td>
        <td>
          𠀀
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          handle backslash-escaped sequences like \239\191\185; used to return "11"
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|multibyte__backslash_escaped}}
        </td>
        <td>
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          surrogate pair chars not supported; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_surrogate_pair}}
        </td>
        <td>
          1
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          table.concat fails if end is nil; convert nil to list len; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|table_concat|.|1||a|b|c}}
        </td>
        <td>
          a.b.c
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          table.concat fails if sep is nil; convert nil to ""; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|table_concat_nil_sep}}
        </td>
        <td>
          ab
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          os_date does not accept utc argument; fails with ""<br>
          NOTE: test assumes EST / EDT; if ! is not applied, then date would be 1969-12-31
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|os_date|!*t|3600}}
        </td>
        <td>
          1970-01-01
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          os_date non-utc check;
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|os_date|*t|0}}
        </td>
        <td>
          1969-12-31
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          os_date format: %e; fails with ""; NOTE: test assumes time zone within 11 hours of UTC
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|os_date_format|%e|2014|07|15|1|2|3}}
        </td>
        <td>
          15
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          os_date format: %R; fails with ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|os_date_format|%R|2014|07|15|13|2|3}}
        </td>
        <td>
          13:02
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          match.balanced: fails with out of bounds;
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_match|a|%b()}}
        </td>
        <td>
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          match.balanced: fails with out of bounds; ^ at beginning
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_match|a|^(.) ?%b()}}
        </td>
        <td>
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          match.frontier:error
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|string_gmatch|a|%f[%a]b}}
        </td>
        <td>
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          match.frontier:bad-implementation; used to return ""
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|lua_match|bz|%f[%a][%a]z$}}
        </td>
        <td>
          bz
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          tonumber hex fails if incomplete
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|tonumber_hex|0x}}
        </td>
        <td>
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
      <tr>
        <td>
          tonumber hex check
        </td>
        <td>
          {{#invoke:Diagnostics/Luaj|tonumber_hex|0xFF}}
        </td>
        <td>
          255
        </td>
        <td>
          <span style='color: green;'>pass</span>
        </td>
      </tr>
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