# -*- coding: utf-8 -*- # #-- # Copyright (C) 2009-2014 Thomas Leitner # # This file is part of kramdown which is licensed under the MIT. #++ # module Kramdown module Utils # Provides convenience methods for handling named and numeric entities. module Entities # Represents an entity that has a +code_point+ and +name+. class Entity < Struct.new(:code_point, :name) # Return the UTF8 representation of the entity. def char [code_point].pack('U*') rescue nil end end # Array of arrays. Each sub-array specifies a code point and the associated name. # # This table is not used directly -- Entity objects are automatically created from it and put # into a Hash map when this file is loaded. ENTITY_TABLE = [ [913, 'Alpha'], [914, 'Beta'], [915, 'Gamma'], [916, 'Delta'], [917, 'Epsilon'], [918, 'Zeta'], [919, 'Eta'], [920, 'Theta'], [921, 'Iota'], [922, 'Kappa'], [923, 'Lambda'], [924, 'Mu'], [925, 'Nu'], [926, 'Xi'], [927, 'Omicron'], [928, 'Pi'], [929, 'Rho'], [931, 'Sigma'], [932, 'Tau'], [933, 'Upsilon'], [934, 'Phi'], [935, 'Chi'], [936, 'Psi'], [937, 'Omega'], [945, 'alpha'], [946, 'beta'], [947, 'gamma'], [948, 'delta'], [949, 'epsilon'], [950, 'zeta'], [951, 'eta'], [952, 'theta'], [953, 'iota'], [954, 'kappa'], [955, 'lambda'], [956, 'mu'], [957, 'nu'], [958, 'xi'], [959, 'omicron'], [960, 'pi'], [961, 'rho'], [963, 'sigma'], [964, 'tau'], [965, 'upsilon'], [966, 'phi'], [967, 'chi'], [968, 'psi'], [969, 'omega'], [962, 'sigmaf'], [977, 'thetasym'], [982, 'piv'], [8230, 'hellip'], [8242, 'prime'], [8254, 'oline'], [8260, 'frasl'], [8472, 'weierp'], [8465, 'image'], [8476, 'real'], [8501, 'alefsym'], [8226, 'bull'], [8482, 'trade'], [8592, 'larr'], [8594, 'rarr'], [8593, 'uarr'], [8595, 'darr'], [8596, 'harr'], [8629, 'crarr'], [8657, 'uArr'], [8659, 'dArr'], [8656, 'lArr'], [8658, 'rArr'], [8660, 'hArr'], [8704, 'forall'], [8706, 'part'], [8707, 'exist'], [8709, 'empty'], [8711, 'nabla'], [8712, 'isin'], [8715, 'ni'], [8713, 'notin'], [8721, 'sum'], [8719, 'prod'], [8722, 'minus'], [8727, 'lowast'], [8730, 'radic'], [8733, 'prop'], [8734, 'infin'], [8736, 'ang'], [8743, 'and'], [8744, 'or'], [8745, 'cup'], [8746, 'cap'], [8747, 'int'], [8756, 'there4'], [8764, 'sim'], [8776, 'asymp'], [8773, 'cong'], [8800, 'ne'], [8801, 'equiv'], [8804, 'le'], [8805, 'ge'], [8834, 'sub'], [8835, 'sup'], [8838, 'sube'], [8839, 'supe'], [8836, 'nsub'], [8853, 'oplus'], [8855, 'otimes'], [8869, 'perp'], [8901, 'sdot'], [8968, 'rceil'], [8969, 'lceil'], [8970, 'lfloor'], [8971, 'rfloor'], [9001, 'rang'], [9002, 'lang'], [9674, 'loz'], [9824, 'spades'], [9827, 'clubs'], [9829, 'hearts'], [9830, 'diams'], [38, 'amp'], [34, 'quot'], [39, 'apos'], [169, 'copy'], [60, 'lt'], [62, 'gt'], [338, 'OElig'], [339, 'oelig'], [352, 'Scaron'], [353, 'scaron'], [376, 'Yuml'], [710, 'circ'], [732, 'tilde'], [8211, 'ndash'], [8212, 'mdash'], [8216, 'lsquo'], [8217, 'rsquo'], [8220, 'ldquo'], [8221, 'rdquo'], [8224, 'dagger'], [8225, 'Dagger'], [8240, 'permil'], [8364, 'euro'], [8249, 'lsaquo'], [8250, 'rsaquo'], [160, 'nbsp'], [161, 'iexcl'], [163, 'pound'], [164, 'curren'], [165, 'yen'], [166, 'brvbar'], [167, 'sect'], [171, 'laquo'], [187, 'raquo'], [174, 'reg'], [170, 'ordf'], [172, 'not'], [173, 'shy'], [176, 'deg'], [177, 'plusmn'], [180, 'acute'], [181, 'micro'], [182, 'para'], [183, 'middot'], [186, 'ordm'], [162, 'cent'], [185, 'sup1'], [178, 'sup2'], [179, 'sup3'], [189, 'frac12'], [188, 'frac14'], [190, 'frac34'], [192, 'Agrave'], [193, 'Aacute'], [194, 'Acirc'], [195, 'Atilde'], [196, 'Auml'], [197, 'Aring'], [198, 'AElig'], [199, 'Ccedil'], [200, 'Egrave'], [201, 'Eacute'], [202, 'Ecirc'], [203, 'Euml'], [204, 'Igrave'], [205, 'Iacute'], [206, 'Icirc'], [207, 'Iuml'], [208, 'ETH'], [209, 'Ntilde'], [210, 'Ograve'], [211, 'Oacute'], [212, 'Ocirc'], [213, 'Otilde'], [214, 'Ouml'], [215, 'times'], [216, 'Oslash'], [217, 'Ugrave'], [218, 'Uacute'], [219, 'Ucirc'], [220, 'Uuml'], [221, 'Yacute'], [222, 'THORN'], [223, 'szlig'], [224, 'agrave'], [225, 'aacute'], [226, 'acirc'], [227, 'atilde'], [228, 'auml'], [229, 'aring'], [230, 'aelig'], [231, 'ccedil'], [232, 'egrave'], [233, 'eacute'], [234, 'ecirc'], [235, 'euml'], [236, 'igrave'], [237, 'iacute'], [238, 'icirc'], [239, 'iuml'], [240, 'eth'], [241, 'ntilde'], [242, 'ograve'], [243, 'oacute'], [244, 'ocirc'], [245, 'otilde'], [246, 'ouml'], [247, 'divide'], [248, 'oslash'], [249, 'ugrave'], [250, 'uacute'], [251, 'ucirc'], [252, 'uuml'], [253, 'yacute'], [254, 'thorn'], [255, 'yuml'], [8218, 'sbquo'], [402, 'fnof'], [8222, 'bdquo'], [128, 8364], [130, 8218], [131, 402], [132, 8222], [133, 8230], [134, 8224], [135, 8225], [136, 710], [137, 8240], [138, 352], [139, 8249], [140, 338], [142, 381], [145, 8216], [146, 8217], [147, 8220], [148, 8221], [149, 8226], [150, 8211], [151, 8212], [152, 732], [153, 8482], [154, 353], [155, 8250], [156, 339], [158, 382], [159, 376], [8194, 'ensp'], [8195, 'emsp'], [8201, 'thinsp'], ] # Contains the mapping of code point (or name) to the actual Entity object. ENTITY_MAP = Hash.new do |h,k| if k.kind_of?(Integer) h[k] = Entity.new(k, nil) else raise Kramdown::Error, "Can't handle generic non-integer character reference '#{k}'" end end ENTITY_TABLE.each do |code_point, data| if data.kind_of?(String) ENTITY_MAP[code_point] = ENTITY_MAP[data] = Entity.new(code_point, data) else ENTITY_MAP[code_point] = ENTITY_MAP[data] end end # Return the entity for the given code point or name +point_or_name+. def entity(point_or_name) ENTITY_MAP[point_or_name] end module_function :entity end end end