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Remove html package and fix test_htmlparser.
This commit is contained in:
Georg Brandl
parent
b1527abbfc
commit
bcdafa44f2
4 changed files with 5 additions and 666 deletions
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# This directory is a Python package.
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"""HTML character entity references."""
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# maps the HTML entity name to the Unicode codepoint
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name2codepoint = {
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'AElig': 0x00c6, # latin capital letter AE = latin capital ligature AE, U+00C6 ISOlat1
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'Aacute': 0x00c1, # latin capital letter A with acute, U+00C1 ISOlat1
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'Acirc': 0x00c2, # latin capital letter A with circumflex, U+00C2 ISOlat1
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'Agrave': 0x00c0, # latin capital letter A with grave = latin capital letter A grave, U+00C0 ISOlat1
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'Alpha': 0x0391, # greek capital letter alpha, U+0391
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'Aring': 0x00c5, # latin capital letter A with ring above = latin capital letter A ring, U+00C5 ISOlat1
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'Atilde': 0x00c3, # latin capital letter A with tilde, U+00C3 ISOlat1
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'Auml': 0x00c4, # latin capital letter A with diaeresis, U+00C4 ISOlat1
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'Beta': 0x0392, # greek capital letter beta, U+0392
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'Ccedil': 0x00c7, # latin capital letter C with cedilla, U+00C7 ISOlat1
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'Chi': 0x03a7, # greek capital letter chi, U+03A7
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'Dagger': 0x2021, # double dagger, U+2021 ISOpub
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'Delta': 0x0394, # greek capital letter delta, U+0394 ISOgrk3
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'ETH': 0x00d0, # latin capital letter ETH, U+00D0 ISOlat1
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'Eacute': 0x00c9, # latin capital letter E with acute, U+00C9 ISOlat1
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'Ecirc': 0x00ca, # latin capital letter E with circumflex, U+00CA ISOlat1
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'Egrave': 0x00c8, # latin capital letter E with grave, U+00C8 ISOlat1
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'Epsilon': 0x0395, # greek capital letter epsilon, U+0395
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'Eta': 0x0397, # greek capital letter eta, U+0397
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'Euml': 0x00cb, # latin capital letter E with diaeresis, U+00CB ISOlat1
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'Gamma': 0x0393, # greek capital letter gamma, U+0393 ISOgrk3
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'Iacute': 0x00cd, # latin capital letter I with acute, U+00CD ISOlat1
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'Icirc': 0x00ce, # latin capital letter I with circumflex, U+00CE ISOlat1
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'Igrave': 0x00cc, # latin capital letter I with grave, U+00CC ISOlat1
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'Iota': 0x0399, # greek capital letter iota, U+0399
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'Iuml': 0x00cf, # latin capital letter I with diaeresis, U+00CF ISOlat1
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'Kappa': 0x039a, # greek capital letter kappa, U+039A
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'Lambda': 0x039b, # greek capital letter lambda, U+039B ISOgrk3
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'Mu': 0x039c, # greek capital letter mu, U+039C
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'Ntilde': 0x00d1, # latin capital letter N with tilde, U+00D1 ISOlat1
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'Nu': 0x039d, # greek capital letter nu, U+039D
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'OElig': 0x0152, # latin capital ligature OE, U+0152 ISOlat2
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'Oacute': 0x00d3, # latin capital letter O with acute, U+00D3 ISOlat1
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'Ocirc': 0x00d4, # latin capital letter O with circumflex, U+00D4 ISOlat1
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'Ograve': 0x00d2, # latin capital letter O with grave, U+00D2 ISOlat1
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'Omega': 0x03a9, # greek capital letter omega, U+03A9 ISOgrk3
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'Omicron': 0x039f, # greek capital letter omicron, U+039F
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'Oslash': 0x00d8, # latin capital letter O with stroke = latin capital letter O slash, U+00D8 ISOlat1
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'Otilde': 0x00d5, # latin capital letter O with tilde, U+00D5 ISOlat1
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'Ouml': 0x00d6, # latin capital letter O with diaeresis, U+00D6 ISOlat1
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'Phi': 0x03a6, # greek capital letter phi, U+03A6 ISOgrk3
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'Pi': 0x03a0, # greek capital letter pi, U+03A0 ISOgrk3
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'Prime': 0x2033, # double prime = seconds = inches, U+2033 ISOtech
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'Psi': 0x03a8, # greek capital letter psi, U+03A8 ISOgrk3
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'Rho': 0x03a1, # greek capital letter rho, U+03A1
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'Scaron': 0x0160, # latin capital letter S with caron, U+0160 ISOlat2
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'Sigma': 0x03a3, # greek capital letter sigma, U+03A3 ISOgrk3
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'THORN': 0x00de, # latin capital letter THORN, U+00DE ISOlat1
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'Tau': 0x03a4, # greek capital letter tau, U+03A4
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'Theta': 0x0398, # greek capital letter theta, U+0398 ISOgrk3
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'Uacute': 0x00da, # latin capital letter U with acute, U+00DA ISOlat1
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'Ucirc': 0x00db, # latin capital letter U with circumflex, U+00DB ISOlat1
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'Ugrave': 0x00d9, # latin capital letter U with grave, U+00D9 ISOlat1
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'Upsilon': 0x03a5, # greek capital letter upsilon, U+03A5 ISOgrk3
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'Uuml': 0x00dc, # latin capital letter U with diaeresis, U+00DC ISOlat1
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'Xi': 0x039e, # greek capital letter xi, U+039E ISOgrk3
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'Yacute': 0x00dd, # latin capital letter Y with acute, U+00DD ISOlat1
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'Yuml': 0x0178, # latin capital letter Y with diaeresis, U+0178 ISOlat2
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'Zeta': 0x0396, # greek capital letter zeta, U+0396
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'aacute': 0x00e1, # latin small letter a with acute, U+00E1 ISOlat1
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'acirc': 0x00e2, # latin small letter a with circumflex, U+00E2 ISOlat1
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'acute': 0x00b4, # acute accent = spacing acute, U+00B4 ISOdia
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'aelig': 0x00e6, # latin small letter ae = latin small ligature ae, U+00E6 ISOlat1
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'agrave': 0x00e0, # latin small letter a with grave = latin small letter a grave, U+00E0 ISOlat1
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'alefsym': 0x2135, # alef symbol = first transfinite cardinal, U+2135 NEW
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'alpha': 0x03b1, # greek small letter alpha, U+03B1 ISOgrk3
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'amp': 0x0026, # ampersand, U+0026 ISOnum
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'and': 0x2227, # logical and = wedge, U+2227 ISOtech
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'ang': 0x2220, # angle, U+2220 ISOamso
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'aring': 0x00e5, # latin small letter a with ring above = latin small letter a ring, U+00E5 ISOlat1
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'asymp': 0x2248, # almost equal to = asymptotic to, U+2248 ISOamsr
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'atilde': 0x00e3, # latin small letter a with tilde, U+00E3 ISOlat1
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'auml': 0x00e4, # latin small letter a with diaeresis, U+00E4 ISOlat1
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'bdquo': 0x201e, # double low-9 quotation mark, U+201E NEW
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'beta': 0x03b2, # greek small letter beta, U+03B2 ISOgrk3
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'brvbar': 0x00a6, # broken bar = broken vertical bar, U+00A6 ISOnum
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'bull': 0x2022, # bullet = black small circle, U+2022 ISOpub
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'cap': 0x2229, # intersection = cap, U+2229 ISOtech
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'ccedil': 0x00e7, # latin small letter c with cedilla, U+00E7 ISOlat1
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'cedil': 0x00b8, # cedilla = spacing cedilla, U+00B8 ISOdia
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'cent': 0x00a2, # cent sign, U+00A2 ISOnum
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'chi': 0x03c7, # greek small letter chi, U+03C7 ISOgrk3
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'circ': 0x02c6, # modifier letter circumflex accent, U+02C6 ISOpub
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'clubs': 0x2663, # black club suit = shamrock, U+2663 ISOpub
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'cong': 0x2245, # approximately equal to, U+2245 ISOtech
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'copy': 0x00a9, # copyright sign, U+00A9 ISOnum
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'crarr': 0x21b5, # downwards arrow with corner leftwards = carriage return, U+21B5 NEW
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'cup': 0x222a, # union = cup, U+222A ISOtech
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'curren': 0x00a4, # currency sign, U+00A4 ISOnum
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'dArr': 0x21d3, # downwards double arrow, U+21D3 ISOamsa
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'dagger': 0x2020, # dagger, U+2020 ISOpub
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'darr': 0x2193, # downwards arrow, U+2193 ISOnum
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'deg': 0x00b0, # degree sign, U+00B0 ISOnum
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'delta': 0x03b4, # greek small letter delta, U+03B4 ISOgrk3
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'diams': 0x2666, # black diamond suit, U+2666 ISOpub
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'divide': 0x00f7, # division sign, U+00F7 ISOnum
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'eacute': 0x00e9, # latin small letter e with acute, U+00E9 ISOlat1
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'ecirc': 0x00ea, # latin small letter e with circumflex, U+00EA ISOlat1
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'egrave': 0x00e8, # latin small letter e with grave, U+00E8 ISOlat1
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'empty': 0x2205, # empty set = null set = diameter, U+2205 ISOamso
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'emsp': 0x2003, # em space, U+2003 ISOpub
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'ensp': 0x2002, # en space, U+2002 ISOpub
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'epsilon': 0x03b5, # greek small letter epsilon, U+03B5 ISOgrk3
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'equiv': 0x2261, # identical to, U+2261 ISOtech
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'eta': 0x03b7, # greek small letter eta, U+03B7 ISOgrk3
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'eth': 0x00f0, # latin small letter eth, U+00F0 ISOlat1
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'euml': 0x00eb, # latin small letter e with diaeresis, U+00EB ISOlat1
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'euro': 0x20ac, # euro sign, U+20AC NEW
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'exist': 0x2203, # there exists, U+2203 ISOtech
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'fnof': 0x0192, # latin small f with hook = function = florin, U+0192 ISOtech
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'forall': 0x2200, # for all, U+2200 ISOtech
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'frac12': 0x00bd, # vulgar fraction one half = fraction one half, U+00BD ISOnum
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'frac14': 0x00bc, # vulgar fraction one quarter = fraction one quarter, U+00BC ISOnum
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'frac34': 0x00be, # vulgar fraction three quarters = fraction three quarters, U+00BE ISOnum
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'frasl': 0x2044, # fraction slash, U+2044 NEW
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'gamma': 0x03b3, # greek small letter gamma, U+03B3 ISOgrk3
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'ge': 0x2265, # greater-than or equal to, U+2265 ISOtech
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'gt': 0x003e, # greater-than sign, U+003E ISOnum
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'hArr': 0x21d4, # left right double arrow, U+21D4 ISOamsa
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'harr': 0x2194, # left right arrow, U+2194 ISOamsa
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'hearts': 0x2665, # black heart suit = valentine, U+2665 ISOpub
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'hellip': 0x2026, # horizontal ellipsis = three dot leader, U+2026 ISOpub
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'iacute': 0x00ed, # latin small letter i with acute, U+00ED ISOlat1
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'icirc': 0x00ee, # latin small letter i with circumflex, U+00EE ISOlat1
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'iexcl': 0x00a1, # inverted exclamation mark, U+00A1 ISOnum
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'igrave': 0x00ec, # latin small letter i with grave, U+00EC ISOlat1
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'image': 0x2111, # blackletter capital I = imaginary part, U+2111 ISOamso
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'infin': 0x221e, # infinity, U+221E ISOtech
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'int': 0x222b, # integral, U+222B ISOtech
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'iota': 0x03b9, # greek small letter iota, U+03B9 ISOgrk3
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'iquest': 0x00bf, # inverted question mark = turned question mark, U+00BF ISOnum
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'isin': 0x2208, # element of, U+2208 ISOtech
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'iuml': 0x00ef, # latin small letter i with diaeresis, U+00EF ISOlat1
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'kappa': 0x03ba, # greek small letter kappa, U+03BA ISOgrk3
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'lArr': 0x21d0, # leftwards double arrow, U+21D0 ISOtech
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'lambda': 0x03bb, # greek small letter lambda, U+03BB ISOgrk3
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'lang': 0x2329, # left-pointing angle bracket = bra, U+2329 ISOtech
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'laquo': 0x00ab, # left-pointing double angle quotation mark = left pointing guillemet, U+00AB ISOnum
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'larr': 0x2190, # leftwards arrow, U+2190 ISOnum
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'lceil': 0x2308, # left ceiling = apl upstile, U+2308 ISOamsc
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'ldquo': 0x201c, # left double quotation mark, U+201C ISOnum
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'le': 0x2264, # less-than or equal to, U+2264 ISOtech
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'lfloor': 0x230a, # left floor = apl downstile, U+230A ISOamsc
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'lowast': 0x2217, # asterisk operator, U+2217 ISOtech
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'loz': 0x25ca, # lozenge, U+25CA ISOpub
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'lrm': 0x200e, # left-to-right mark, U+200E NEW RFC 2070
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'lsaquo': 0x2039, # single left-pointing angle quotation mark, U+2039 ISO proposed
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'lsquo': 0x2018, # left single quotation mark, U+2018 ISOnum
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'lt': 0x003c, # less-than sign, U+003C ISOnum
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'macr': 0x00af, # macron = spacing macron = overline = APL overbar, U+00AF ISOdia
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'mdash': 0x2014, # em dash, U+2014 ISOpub
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'micro': 0x00b5, # micro sign, U+00B5 ISOnum
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'middot': 0x00b7, # middle dot = Georgian comma = Greek middle dot, U+00B7 ISOnum
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'minus': 0x2212, # minus sign, U+2212 ISOtech
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'mu': 0x03bc, # greek small letter mu, U+03BC ISOgrk3
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'nabla': 0x2207, # nabla = backward difference, U+2207 ISOtech
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'nbsp': 0x00a0, # no-break space = non-breaking space, U+00A0 ISOnum
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'ndash': 0x2013, # en dash, U+2013 ISOpub
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'ne': 0x2260, # not equal to, U+2260 ISOtech
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'ni': 0x220b, # contains as member, U+220B ISOtech
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'not': 0x00ac, # not sign, U+00AC ISOnum
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'notin': 0x2209, # not an element of, U+2209 ISOtech
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'nsub': 0x2284, # not a subset of, U+2284 ISOamsn
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'ntilde': 0x00f1, # latin small letter n with tilde, U+00F1 ISOlat1
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'nu': 0x03bd, # greek small letter nu, U+03BD ISOgrk3
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'oacute': 0x00f3, # latin small letter o with acute, U+00F3 ISOlat1
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'ocirc': 0x00f4, # latin small letter o with circumflex, U+00F4 ISOlat1
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'oelig': 0x0153, # latin small ligature oe, U+0153 ISOlat2
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'ograve': 0x00f2, # latin small letter o with grave, U+00F2 ISOlat1
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'oline': 0x203e, # overline = spacing overscore, U+203E NEW
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'omega': 0x03c9, # greek small letter omega, U+03C9 ISOgrk3
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'omicron': 0x03bf, # greek small letter omicron, U+03BF NEW
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'oplus': 0x2295, # circled plus = direct sum, U+2295 ISOamsb
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'or': 0x2228, # logical or = vee, U+2228 ISOtech
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'ordf': 0x00aa, # feminine ordinal indicator, U+00AA ISOnum
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'ordm': 0x00ba, # masculine ordinal indicator, U+00BA ISOnum
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'oslash': 0x00f8, # latin small letter o with stroke, = latin small letter o slash, U+00F8 ISOlat1
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'otilde': 0x00f5, # latin small letter o with tilde, U+00F5 ISOlat1
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'otimes': 0x2297, # circled times = vector product, U+2297 ISOamsb
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'ouml': 0x00f6, # latin small letter o with diaeresis, U+00F6 ISOlat1
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'para': 0x00b6, # pilcrow sign = paragraph sign, U+00B6 ISOnum
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'part': 0x2202, # partial differential, U+2202 ISOtech
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'permil': 0x2030, # per mille sign, U+2030 ISOtech
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'perp': 0x22a5, # up tack = orthogonal to = perpendicular, U+22A5 ISOtech
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'phi': 0x03c6, # greek small letter phi, U+03C6 ISOgrk3
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'pi': 0x03c0, # greek small letter pi, U+03C0 ISOgrk3
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'piv': 0x03d6, # greek pi symbol, U+03D6 ISOgrk3
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'plusmn': 0x00b1, # plus-minus sign = plus-or-minus sign, U+00B1 ISOnum
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'pound': 0x00a3, # pound sign, U+00A3 ISOnum
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'prime': 0x2032, # prime = minutes = feet, U+2032 ISOtech
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'prod': 0x220f, # n-ary product = product sign, U+220F ISOamsb
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'prop': 0x221d, # proportional to, U+221D ISOtech
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'psi': 0x03c8, # greek small letter psi, U+03C8 ISOgrk3
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'quot': 0x0022, # quotation mark = APL quote, U+0022 ISOnum
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'rArr': 0x21d2, # rightwards double arrow, U+21D2 ISOtech
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'radic': 0x221a, # square root = radical sign, U+221A ISOtech
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'rang': 0x232a, # right-pointing angle bracket = ket, U+232A ISOtech
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'raquo': 0x00bb, # right-pointing double angle quotation mark = right pointing guillemet, U+00BB ISOnum
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'rarr': 0x2192, # rightwards arrow, U+2192 ISOnum
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'rceil': 0x2309, # right ceiling, U+2309 ISOamsc
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'rdquo': 0x201d, # right double quotation mark, U+201D ISOnum
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'real': 0x211c, # blackletter capital R = real part symbol, U+211C ISOamso
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'reg': 0x00ae, # registered sign = registered trade mark sign, U+00AE ISOnum
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'rfloor': 0x230b, # right floor, U+230B ISOamsc
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'rho': 0x03c1, # greek small letter rho, U+03C1 ISOgrk3
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'rlm': 0x200f, # right-to-left mark, U+200F NEW RFC 2070
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'rsaquo': 0x203a, # single right-pointing angle quotation mark, U+203A ISO proposed
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'rsquo': 0x2019, # right single quotation mark, U+2019 ISOnum
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'sbquo': 0x201a, # single low-9 quotation mark, U+201A NEW
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'scaron': 0x0161, # latin small letter s with caron, U+0161 ISOlat2
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'sdot': 0x22c5, # dot operator, U+22C5 ISOamsb
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'sect': 0x00a7, # section sign, U+00A7 ISOnum
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'shy': 0x00ad, # soft hyphen = discretionary hyphen, U+00AD ISOnum
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'sigma': 0x03c3, # greek small letter sigma, U+03C3 ISOgrk3
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'sigmaf': 0x03c2, # greek small letter final sigma, U+03C2 ISOgrk3
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'sim': 0x223c, # tilde operator = varies with = similar to, U+223C ISOtech
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'spades': 0x2660, # black spade suit, U+2660 ISOpub
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'sub': 0x2282, # subset of, U+2282 ISOtech
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'sube': 0x2286, # subset of or equal to, U+2286 ISOtech
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'sum': 0x2211, # n-ary sumation, U+2211 ISOamsb
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'sup': 0x2283, # superset of, U+2283 ISOtech
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'sup1': 0x00b9, # superscript one = superscript digit one, U+00B9 ISOnum
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'sup2': 0x00b2, # superscript two = superscript digit two = squared, U+00B2 ISOnum
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'sup3': 0x00b3, # superscript three = superscript digit three = cubed, U+00B3 ISOnum
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'supe': 0x2287, # superset of or equal to, U+2287 ISOtech
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'szlig': 0x00df, # latin small letter sharp s = ess-zed, U+00DF ISOlat1
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'tau': 0x03c4, # greek small letter tau, U+03C4 ISOgrk3
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'there4': 0x2234, # therefore, U+2234 ISOtech
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'theta': 0x03b8, # greek small letter theta, U+03B8 ISOgrk3
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'thetasym': 0x03d1, # greek small letter theta symbol, U+03D1 NEW
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'thinsp': 0x2009, # thin space, U+2009 ISOpub
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'thorn': 0x00fe, # latin small letter thorn with, U+00FE ISOlat1
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'tilde': 0x02dc, # small tilde, U+02DC ISOdia
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'times': 0x00d7, # multiplication sign, U+00D7 ISOnum
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'trade': 0x2122, # trade mark sign, U+2122 ISOnum
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'uArr': 0x21d1, # upwards double arrow, U+21D1 ISOamsa
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'uacute': 0x00fa, # latin small letter u with acute, U+00FA ISOlat1
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'uarr': 0x2191, # upwards arrow, U+2191 ISOnum
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'ucirc': 0x00fb, # latin small letter u with circumflex, U+00FB ISOlat1
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'ugrave': 0x00f9, # latin small letter u with grave, U+00F9 ISOlat1
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'uml': 0x00a8, # diaeresis = spacing diaeresis, U+00A8 ISOdia
|
||||
'upsih': 0x03d2, # greek upsilon with hook symbol, U+03D2 NEW
|
||||
'upsilon': 0x03c5, # greek small letter upsilon, U+03C5 ISOgrk3
|
||||
'uuml': 0x00fc, # latin small letter u with diaeresis, U+00FC ISOlat1
|
||||
'weierp': 0x2118, # script capital P = power set = Weierstrass p, U+2118 ISOamso
|
||||
'xi': 0x03be, # greek small letter xi, U+03BE ISOgrk3
|
||||
'yacute': 0x00fd, # latin small letter y with acute, U+00FD ISOlat1
|
||||
'yen': 0x00a5, # yen sign = yuan sign, U+00A5 ISOnum
|
||||
'yuml': 0x00ff, # latin small letter y with diaeresis, U+00FF ISOlat1
|
||||
'zeta': 0x03b6, # greek small letter zeta, U+03B6 ISOgrk3
|
||||
'zwj': 0x200d, # zero width joiner, U+200D NEW RFC 2070
|
||||
'zwnj': 0x200c, # zero width non-joiner, U+200C NEW RFC 2070
|
||||
}
|
||||
|
||||
# maps the Unicode codepoint to the HTML entity name
|
||||
codepoint2name = {}
|
||||
|
||||
# maps the HTML entity name to the character
|
||||
# (or a character reference if the character is outside the Latin-1 range)
|
||||
entitydefs = {}
|
||||
|
||||
for (name, codepoint) in name2codepoint.iteritems():
|
||||
codepoint2name[codepoint] = name
|
||||
if codepoint <= 0xff:
|
||||
entitydefs[name] = chr(codepoint)
|
||||
else:
|
||||
entitydefs[name] = '&#%d;' % codepoint
|
||||
|
||||
del name, codepoint
|
||||
|
|
@ -1,387 +0,0 @@
|
|||
"""A parser for HTML and XHTML."""
|
||||
|
||||
# This file is based on sgmllib.py, but the API is slightly different.
|
||||
|
||||
# XXX There should be a way to distinguish between PCDATA (parsed
|
||||
# character data -- the normal case), RCDATA (replaceable character
|
||||
# data -- only char and entity references and end tags are special)
|
||||
# and CDATA (character data -- only end tags are special).
|
||||
|
||||
|
||||
import markupbase
|
||||
import re
|
||||
|
||||
# Regular expressions used for parsing
|
||||
|
||||
interesting_normal = re.compile('[&<]')
|
||||
interesting_cdata = re.compile(r'<(/|\Z)')
|
||||
incomplete = re.compile('&[a-zA-Z#]')
|
||||
|
||||
entityref = re.compile('&([a-zA-Z][-.a-zA-Z0-9]*)[^a-zA-Z0-9]')
|
||||
charref = re.compile('&#(?:[0-9]+|[xX][0-9a-fA-F]+)[^0-9a-fA-F]')
|
||||
|
||||
starttagopen = re.compile('<[a-zA-Z]')
|
||||
piclose = re.compile('>')
|
||||
commentclose = re.compile(r'--\s*>')
|
||||
tagfind = re.compile('[a-zA-Z][-.a-zA-Z0-9:_]*')
|
||||
attrfind = re.compile(
|
||||
r'\s*([a-zA-Z_][-.:a-zA-Z_0-9]*)(\s*=\s*'
|
||||
r'(\'[^\']*\'|"[^"]*"|[-a-zA-Z0-9./,:;+*%?!&$\(\)_#=~@]*))?')
|
||||
|
||||
locatestarttagend = re.compile(r"""
|
||||
<[a-zA-Z][-.a-zA-Z0-9:_]* # tag name
|
||||
(?:\s+ # whitespace before attribute name
|
||||
(?:[a-zA-Z_][-.:a-zA-Z0-9_]* # attribute name
|
||||
(?:\s*=\s* # value indicator
|
||||
(?:'[^']*' # LITA-enclosed value
|
||||
|\"[^\"]*\" # LIT-enclosed value
|
||||
|[^'\">\s]+ # bare value
|
||||
)
|
||||
)?
|
||||
)
|
||||
)*
|
||||
\s* # trailing whitespace
|
||||
""", re.VERBOSE)
|
||||
endendtag = re.compile('>')
|
||||
endtagfind = re.compile('</\s*([a-zA-Z][-.a-zA-Z0-9:_]*)\s*>')
|
||||
|
||||
|
||||
class HTMLParseError(Exception):
|
||||
"""Exception raised for all parse errors."""
|
||||
|
||||
def __init__(self, msg, position=(None, None)):
|
||||
assert msg
|
||||
self.msg = msg
|
||||
self.lineno = position[0]
|
||||
self.offset = position[1]
|
||||
|
||||
def __str__(self):
|
||||
result = self.msg
|
||||
if self.lineno is not None:
|
||||
result = result + ", at line %d" % self.lineno
|
||||
if self.offset is not None:
|
||||
result = result + ", column %d" % (self.offset + 1)
|
||||
return result
|
||||
|
||||
|
||||
class HTMLParser(markupbase.ParserBase):
|
||||
"""Find tags and other markup and call handler functions.
|
||||
|
||||
Usage:
|
||||
p = HTMLParser()
|
||||
p.feed(data)
|
||||
...
|
||||
p.close()
|
||||
|
||||
Start tags are handled by calling self.handle_starttag() or
|
||||
self.handle_startendtag(); end tags by self.handle_endtag(). The
|
||||
data between tags is passed from the parser to the derived class
|
||||
by calling self.handle_data() with the data as argument (the data
|
||||
may be split up in arbitrary chunks). Entity references are
|
||||
passed by calling self.handle_entityref() with the entity
|
||||
reference as the argument. Numeric character references are
|
||||
passed to self.handle_charref() with the string containing the
|
||||
reference as the argument.
|
||||
"""
|
||||
|
||||
CDATA_CONTENT_ELEMENTS = ("script", "style")
|
||||
|
||||
|
||||
def __init__(self):
|
||||
"""Initialize and reset this instance."""
|
||||
self.reset()
|
||||
|
||||
def reset(self):
|
||||
"""Reset this instance. Loses all unprocessed data."""
|
||||
self.rawdata = ''
|
||||
self.lasttag = '???'
|
||||
self.interesting = interesting_normal
|
||||
markupbase.ParserBase.reset(self)
|
||||
|
||||
def feed(self, data):
|
||||
"""Feed data to the parser.
|
||||
|
||||
Call this as often as you want, with as little or as much text
|
||||
as you want (may include '\n').
|
||||
"""
|
||||
self.rawdata = self.rawdata + data
|
||||
self.goahead(0)
|
||||
|
||||
def close(self):
|
||||
"""Handle any buffered data."""
|
||||
self.goahead(1)
|
||||
|
||||
def error(self, message):
|
||||
raise HTMLParseError(message, self.getpos())
|
||||
|
||||
__starttag_text = None
|
||||
|
||||
def get_starttag_text(self):
|
||||
"""Return full source of start tag: '<...>'."""
|
||||
return self.__starttag_text
|
||||
|
||||
def set_cdata_mode(self):
|
||||
self.interesting = interesting_cdata
|
||||
|
||||
def clear_cdata_mode(self):
|
||||
self.interesting = interesting_normal
|
||||
|
||||
# Internal -- handle data as far as reasonable. May leave state
|
||||
# and data to be processed by a subsequent call. If 'end' is
|
||||
# true, force handling all data as if followed by EOF marker.
|
||||
def goahead(self, end):
|
||||
rawdata = self.rawdata
|
||||
i = 0
|
||||
n = len(rawdata)
|
||||
while i < n:
|
||||
match = self.interesting.search(rawdata, i) # < or &
|
||||
if match:
|
||||
j = match.start()
|
||||
else:
|
||||
j = n
|
||||
if i < j: self.handle_data(rawdata[i:j])
|
||||
i = self.updatepos(i, j)
|
||||
if i == n: break
|
||||
startswith = rawdata.startswith
|
||||
if startswith('<', i):
|
||||
if starttagopen.match(rawdata, i): # < + letter
|
||||
k = self.parse_starttag(i)
|
||||
elif startswith("</", i):
|
||||
k = self.parse_endtag(i)
|
||||
elif startswith("<!--", i):
|
||||
k = self.parse_comment(i)
|
||||
elif startswith("<?", i):
|
||||
k = self.parse_pi(i)
|
||||
elif startswith("<!", i):
|
||||
k = self.parse_declaration(i)
|
||||
elif (i + 1) < n:
|
||||
self.handle_data("<")
|
||||
k = i + 1
|
||||
else:
|
||||
break
|
||||
if k < 0:
|
||||
if end:
|
||||
self.error("EOF in middle of construct")
|
||||
break
|
||||
i = self.updatepos(i, k)
|
||||
elif startswith("&#", i):
|
||||
match = charref.match(rawdata, i)
|
||||
if match:
|
||||
name = match.group()[2:-1]
|
||||
self.handle_charref(name)
|
||||
k = match.end()
|
||||
if not startswith(';', k-1):
|
||||
k = k - 1
|
||||
i = self.updatepos(i, k)
|
||||
continue
|
||||
else:
|
||||
break
|
||||
elif startswith('&', i):
|
||||
match = entityref.match(rawdata, i)
|
||||
if match:
|
||||
name = match.group(1)
|
||||
self.handle_entityref(name)
|
||||
k = match.end()
|
||||
if not startswith(';', k-1):
|
||||
k = k - 1
|
||||
i = self.updatepos(i, k)
|
||||
continue
|
||||
match = incomplete.match(rawdata, i)
|
||||
if match:
|
||||
# match.group() will contain at least 2 chars
|
||||
if end and match.group() == rawdata[i:]:
|
||||
self.error("EOF in middle of entity or char ref")
|
||||
# incomplete
|
||||
break
|
||||
elif (i + 1) < n:
|
||||
# not the end of the buffer, and can't be confused
|
||||
# with some other construct
|
||||
self.handle_data("&")
|
||||
i = self.updatepos(i, i + 1)
|
||||
else:
|
||||
break
|
||||
else:
|
||||
assert 0, "interesting.search() lied"
|
||||
# end while
|
||||
if end and i < n:
|
||||
self.handle_data(rawdata[i:n])
|
||||
i = self.updatepos(i, n)
|
||||
self.rawdata = rawdata[i:]
|
||||
|
||||
# Internal -- parse processing instr, return end or -1 if not terminated
|
||||
def parse_pi(self, i):
|
||||
rawdata = self.rawdata
|
||||
assert rawdata[i:i+2] == '<?', 'unexpected call to parse_pi()'
|
||||
match = piclose.search(rawdata, i+2) # >
|
||||
if not match:
|
||||
return -1
|
||||
j = match.start()
|
||||
self.handle_pi(rawdata[i+2: j])
|
||||
j = match.end()
|
||||
return j
|
||||
|
||||
# Internal -- handle starttag, return end or -1 if not terminated
|
||||
def parse_starttag(self, i):
|
||||
self.__starttag_text = None
|
||||
endpos = self.check_for_whole_start_tag(i)
|
||||
if endpos < 0:
|
||||
return endpos
|
||||
rawdata = self.rawdata
|
||||
self.__starttag_text = rawdata[i:endpos]
|
||||
|
||||
# Now parse the data between i+1 and j into a tag and attrs
|
||||
attrs = []
|
||||
match = tagfind.match(rawdata, i+1)
|
||||
assert match, 'unexpected call to parse_starttag()'
|
||||
k = match.end()
|
||||
self.lasttag = tag = rawdata[i+1:k].lower()
|
||||
|
||||
while k < endpos:
|
||||
m = attrfind.match(rawdata, k)
|
||||
if not m:
|
||||
break
|
||||
attrname, rest, attrvalue = m.group(1, 2, 3)
|
||||
if not rest:
|
||||
attrvalue = None
|
||||
elif attrvalue[:1] == '\'' == attrvalue[-1:] or \
|
||||
attrvalue[:1] == '"' == attrvalue[-1:]:
|
||||
attrvalue = attrvalue[1:-1]
|
||||
attrvalue = self.unescape(attrvalue)
|
||||
attrs.append((attrname.lower(), attrvalue))
|
||||
k = m.end()
|
||||
|
||||
end = rawdata[k:endpos].strip()
|
||||
if end not in (">", "/>"):
|
||||
lineno, offset = self.getpos()
|
||||
if "\n" in self.__starttag_text:
|
||||
lineno = lineno + self.__starttag_text.count("\n")
|
||||
offset = len(self.__starttag_text) \
|
||||
- self.__starttag_text.rfind("\n")
|
||||
else:
|
||||
offset = offset + len(self.__starttag_text)
|
||||
self.error("junk characters in start tag: %r"
|
||||
% (rawdata[k:endpos][:20],))
|
||||
if end.endswith('/>'):
|
||||
# XHTML-style empty tag: <span attr="value" />
|
||||
self.handle_startendtag(tag, attrs)
|
||||
else:
|
||||
self.handle_starttag(tag, attrs)
|
||||
if tag in self.CDATA_CONTENT_ELEMENTS:
|
||||
self.set_cdata_mode()
|
||||
return endpos
|
||||
|
||||
# Internal -- check to see if we have a complete starttag; return end
|
||||
# or -1 if incomplete.
|
||||
def check_for_whole_start_tag(self, i):
|
||||
rawdata = self.rawdata
|
||||
m = locatestarttagend.match(rawdata, i)
|
||||
if m:
|
||||
j = m.end()
|
||||
next = rawdata[j:j+1]
|
||||
if next == ">":
|
||||
return j + 1
|
||||
if next == "/":
|
||||
if rawdata.startswith("/>", j):
|
||||
return j + 2
|
||||
if rawdata.startswith("/", j):
|
||||
# buffer boundary
|
||||
return -1
|
||||
# else bogus input
|
||||
self.updatepos(i, j + 1)
|
||||
self.error("malformed empty start tag")
|
||||
if next == "":
|
||||
# end of input
|
||||
return -1
|
||||
if next in ("abcdefghijklmnopqrstuvwxyz=/"
|
||||
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"):
|
||||
# end of input in or before attribute value, or we have the
|
||||
# '/' from a '/>' ending
|
||||
return -1
|
||||
self.updatepos(i, j)
|
||||
self.error("malformed start tag")
|
||||
raise AssertionError("we should not get here!")
|
||||
|
||||
# Internal -- parse endtag, return end or -1 if incomplete
|
||||
def parse_endtag(self, i):
|
||||
rawdata = self.rawdata
|
||||
assert rawdata[i:i+2] == "</", "unexpected call to parse_endtag"
|
||||
match = endendtag.search(rawdata, i+1) # >
|
||||
if not match:
|
||||
return -1
|
||||
j = match.end()
|
||||
match = endtagfind.match(rawdata, i) # </ + tag + >
|
||||
if not match:
|
||||
self.error("bad end tag: %r" % (rawdata[i:j],))
|
||||
tag = match.group(1)
|
||||
self.handle_endtag(tag.lower())
|
||||
self.clear_cdata_mode()
|
||||
return j
|
||||
|
||||
# Overridable -- finish processing of start+end tag: <tag.../>
|
||||
def handle_startendtag(self, tag, attrs):
|
||||
self.handle_starttag(tag, attrs)
|
||||
self.handle_endtag(tag)
|
||||
|
||||
# Overridable -- handle start tag
|
||||
def handle_starttag(self, tag, attrs):
|
||||
pass
|
||||
|
||||
# Overridable -- handle end tag
|
||||
def handle_endtag(self, tag):
|
||||
pass
|
||||
|
||||
# Overridable -- handle character reference
|
||||
def handle_charref(self, name):
|
||||
pass
|
||||
|
||||
# Overridable -- handle entity reference
|
||||
def handle_entityref(self, name):
|
||||
pass
|
||||
|
||||
# Overridable -- handle data
|
||||
def handle_data(self, data):
|
||||
pass
|
||||
|
||||
# Overridable -- handle comment
|
||||
def handle_comment(self, data):
|
||||
pass
|
||||
|
||||
# Overridable -- handle declaration
|
||||
def handle_decl(self, decl):
|
||||
pass
|
||||
|
||||
# Overridable -- handle processing instruction
|
||||
def handle_pi(self, data):
|
||||
pass
|
||||
|
||||
def unknown_decl(self, data):
|
||||
self.error("unknown declaration: %r" % (data,))
|
||||
|
||||
# Internal -- helper to remove special character quoting
|
||||
entitydefs = None
|
||||
def unescape(self, s):
|
||||
if '&' not in s:
|
||||
return s
|
||||
def replaceEntities(s):
|
||||
s = s.groups()[0]
|
||||
if s[0] == "#":
|
||||
s = s[1:]
|
||||
if s[0] in ['x','X']:
|
||||
c = int(s[1:], 16)
|
||||
else:
|
||||
c = int(s)
|
||||
return unichr(c)
|
||||
else:
|
||||
# Cannot use name2codepoint directly, because HTMLParser supports apos,
|
||||
# which is not part of HTML 4
|
||||
import htmlentitydefs
|
||||
if HTMLParser.entitydefs is None:
|
||||
entitydefs = HTMLParser.entitydefs = {'apos':u"'"}
|
||||
for k, v in htmlentitydefs.name2codepoint.iteritems():
|
||||
entitydefs[k] = unichr(v)
|
||||
try:
|
||||
return self.entitydefs[s]
|
||||
except KeyError:
|
||||
return '&'+s+';'
|
||||
|
||||
return re.sub(r"&(#?[xX]?(?:[0-9a-fA-F]+|\w{1,8}));", replaceEntities, s)
|
||||
|
|
@ -1,17 +1,17 @@
|
|||
"""Tests for HTMLParser.py."""
|
||||
|
||||
import html.parser
|
||||
import HTMLParser
|
||||
import pprint
|
||||
import unittest
|
||||
from test import test_support
|
||||
|
||||
|
||||
class EventCollector(html.parser.HTMLParser):
|
||||
class EventCollector(HTMLParser.HTMLParser):
|
||||
|
||||
def __init__(self):
|
||||
self.events = []
|
||||
self.append = self.events.append
|
||||
html.parser.HTMLParser.__init__(self)
|
||||
HTMLParser.HTMLParser.__init__(self)
|
||||
|
||||
def get_events(self):
|
||||
# Normalize the list of events so that buffer artefacts don't
|
||||
|
|
@ -88,10 +88,10 @@ def _run_check_extra(self, source, events):
|
|||
|
||||
def _parse_error(self, source):
|
||||
def parse(source=source):
|
||||
parser = html.parser.HTMLParser()
|
||||
parser = HTMLParser.HTMLParser()
|
||||
parser.feed(source)
|
||||
parser.close()
|
||||
self.assertRaises(html.parser.HTMLParseError, parse)
|
||||
self.assertRaises(HTMLParser.HTMLParseError, parse)
|
||||
|
||||
|
||||
class HTMLParserTestCase(TestCaseBase):
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue