Nim - Html Entities to UTF8-16 Hex - Replace htmlparser.entityToUtf8

gistfile1.nim

import unicode

proc entToUtf8(str: var string): string =
    let Entities = @[
        ("nbsp", 0x00A0), ("iexcl", 0x00A1), ("cent", 0x00A2), ("pound", 0x00A3),
        ("curren", 0x00A4), ("yen", 0x00A5), ("brvbar", 0x00A6), ("sect", 0x00A7),
        ("uml", 0x00A8), ("copy", 0x00A9), ("ordf", 0x00AA), ("laquo", 0x00AB),
        ("not", 0x00AC), ("shy", 0x00AD), ("reg", 0x00AE), ("macr", 0x00AF),
        ("deg", 0x00B0), ("plusmn", 0x00B1), ("sup2", 0x00B2), ("sup3", 0x00B3),
        ("acute", 0x00B4), ("micro", 0x00B5), ("para", 0x00B6), ("middot", 0x00B7),
        ("cedil", 0x00B8), ("sup1", 0x00B9), ("ordm", 0x00BA), ("raquo", 0x00BB),
        ("frac14", 0x00BC), ("frac12", 0x00BD), ("frac34", 0x00BE), 
        ("iquest", 0x00BF), ("Agrave", 0x00C0), ("Aacute", 0x00C1),
        ("Acirc", 0x00C2), ("Atilde", 0x00C3), ("Auml", 0x00C4), ("Aring", 0x00C5),
        ("AElig", 0x00C6), ("Ccedil", 0x00C7), ("Egrave", 0x00C8),
        ("Eacute", 0x00C9), ("Ecirc", 0x00CA), ("Euml", 0x00CB), ("Igrave", 0x00CC),
        ("Iacute", 0x00CD), ("Icirc", 0x00CE), ("Iuml", 0x00CF), ("ETH", 0x00D0),
        ("Ntilde", 0x00D1), ("Ograve", 0x00D2), ("Oacute", 0x00D3), 
        ("Ocirc", 0x00D4), ("Otilde", 0x00D5), ("Ouml", 0x00D6), ("times", 0x00D7),
        ("Oslash", 0x00D8), ("Ugrave", 0x00D9), ("Uacute", 0x00DA),
        ("Ucirc", 0x00DB), ("Uuml", 0x00DC), ("Yacute", 0x00DD), ("THORN", 0x00DE),
        ("szlig", 0x00DF), ("agrave", 0x00E0), ("aacute", 0x00E1),
        ("acirc", 0x00E2), ("atilde", 0x00E3), ("auml", 0x00E4), ("aring", 0x00E5),
        ("aelig", 0x00E6), ("ccedil", 0x00E7), ("egrave", 0x00E8),
        ("eacute", 0x00E9), ("ecirc", 0x00EA), ("euml", 0x00EB), ("igrave", 0x00EC),
        ("iacute", 0x00ED), ("icirc", 0x00EE), ("iuml", 0x00EF), ("eth", 0x00F0),
        ("ntilde", 0x00F1), ("ograve", 0x00F2), ("oacute", 0x00F3),
        ("ocirc", 0x00F4), ("otilde", 0x00F5), ("ouml", 0x00F6), ("divide", 0x00F7),
        ("oslash", 0x00F8), ("ugrave", 0x00F9), ("uacute", 0x00FA),
        ("ucirc", 0x00FB), ("uuml", 0x00FC), ("yacute", 0x00FD), ("thorn", 0x00FE),
        ("yuml", 0x00FF), ("OElig", 0x0152), ("oelig", 0x0153), ("Scaron", 0x0160),
        ("scaron", 0x0161), ("Yuml", 0x0178), ("fnof", 0x0192), ("circ", 0x02C6),
        ("tilde", 0x02DC), ("Alpha", 0x0391), ("Beta", 0x0392), ("Gamma", 0x0393),
        ("Delta", 0x0394), ("Epsilon", 0x0395), ("Zeta", 0x0396), ("Eta", 0x0397),
        ("Theta", 0x0398), ("Iota", 0x0399), ("Kappa", 0x039A), ("Lambda", 0x039B),
        ("Mu", 0x039C), ("Nu", 0x039D), ("Xi", 0x039E), ("Omicron", 0x039F),
        ("Pi", 0x03A0), ("Rho", 0x03A1), ("Sigma", 0x03A3), ("Tau", 0x03A4),
        ("Upsilon", 0x03A5), ("Phi", 0x03A6), ("Chi", 0x03A7), ("Psi", 0x03A8),
        ("Omega", 0x03A9), ("alpha", 0x03B1), ("beta", 0x03B2), ("gamma", 0x03B3),
        ("delta", 0x03B4), ("epsilon", 0x03B5), ("zeta", 0x03B6), ("eta", 0x03B7),
        ("theta", 0x03B8), ("iota", 0x03B9), ("kappa", 0x03BA), ("lambda", 0x03BB),
        ("mu", 0x03BC), ("nu", 0x03BD), ("xi", 0x03BE), ("omicron", 0x03BF),
        ("pi", 0x03C0), ("rho", 0x03C1), ("sigmaf", 0x03C2), ("sigma", 0x03C3),
        ("tau", 0x03C4), ("upsilon", 0x03C5), ("phi", 0x03C6), ("chi", 0x03C7),
        ("psi", 0x03C8), ("omega", 0x03C9), ("thetasym", 0x03D1), ("upsih", 0x03D2),
        ("piv", 0x03D6), ("ensp", 0x2002), ("emsp", 0x2003), ("thinsp", 0x2009),
        ("zwnj", 0x200C), ("zwj", 0x200D), ("lrm", 0x200E), ("rlm", 0x200F),
        ("ndash", 0x2013), ("mdash", 0x2014), ("lsquo", 0x2018), ("rsquo", 0x2019),
        ("sbquo", 0x201A), ("ldquo", 0x201C), ("rdquo", 0x201D), ("bdquo", 0x201E),
        ("dagger", 0x2020), ("Dagger", 0x2021), ("bull", 0x2022), 
        ("hellip", 0x2026), ("permil", 0x2030), ("prime", 0x2032),
        ("Prime", 0x2033), ("lsaquo", 0x2039), ("rsaquo", 0x203A),
        ("oline", 0x203E), ("frasl", 0x2044), ("euro", 0x20AC),
        ("image", 0x2111), ("weierp", 0x2118), ("real", 0x211C),
        ("trade", 0x2122), ("alefsym", 0x2135), ("larr", 0x2190),
        ("uarr", 0x2191), ("rarr", 0x2192), ("darr", 0x2193),
        ("harr", 0x2194), ("crarr", 0x21B5), ("lArr", 0x21D0),
        ("uArr", 0x21D1), ("rArr", 0x21D2), ("dArr", 0x21D3),
        ("hArr", 0x21D4), ("forall", 0x2200), ("part", 0x2202),
        ("exist", 0x2203), ("empty", 0x2205), ("nabla", 0x2207),
        ("isin", 0x2208), ("notin", 0x2209), ("ni", 0x220B),
        ("prod", 0x220F), ("sum", 0x2211), ("minus", 0x2212),
        ("lowast", 0x2217), ("radic", 0x221A), ("prop", 0x221D),
        ("infin", 0x221E), ("ang", 0x2220), ("and", 0x2227),
        ("or", 0x2228), ("cap", 0x2229), ("cup", 0x222A),
        ("int", 0x222B), ("there4", 0x2234), ("sim", 0x223C),
        ("cong", 0x2245), ("asymp", 0x2248), ("ne", 0x2260),
        ("equiv", 0x2261), ("le", 0x2264), ("ge", 0x2265),
        ("sub", 0x2282), ("sup", 0x2283), ("nsub", 0x2284),
        ("sube", 0x2286), ("supe", 0x2287), ("oplus", 0x2295),
        ("otimes", 0x2297), ("perp", 0x22A5), ("sdot", 0x22C5),
        ("lceil", 0x2308), ("rceil", 0x2309), ("lfloor", 0x230A),
        ("rfloor", 0x230B), ("lang", 0x2329), ("rang", 0x232A),
        ("loz", 0x25CA), ("spades", 0x2660), ("clubs", 0x2663),
        ("hearts", 0x2665), ("diams", 0x2666), ("amp", 0x0026)]
    
    for ent in Entities:
        str = str.replace("&" & ent[0] & ";", toUTF8(Rune(ent[1])))
    return str