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fpspreadsheet: Initial implementation of html font reader (so far, uses only "style" attribute of "td" node)
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@4254 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
wp_xxyyzz
@ -18,6 +18,7 @@ type
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}
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TsHTMLReader = class(TsCustomSpreadReader)
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private
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FPointSeparatorSettings: TFormatSettings;
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FFormatSettings: TFormatSettings;
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parser: THTMLParser;
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FInTable: Boolean;
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@ -35,6 +36,7 @@ type
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FColSpan, FRowSpan: Integer;
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FHRef: String;
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procedure ExtractBackgroundColor;
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procedure ExtractFont(AFont: TsFont);
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procedure ExtractHRef;
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procedure ExtractHorAlign;
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procedure ExtractMergedRange;
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@ -124,297 +126,12 @@ var
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implementation
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uses
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LazUTF8, URIParser, StrUtils,
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LazUTF8, URIParser, StrUtils, Math,
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fpsUtils, fpsNumFormat;
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(*
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type
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THTMLEntity = record
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E: String;
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Ch: String;
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end;
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const
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HTMLEntities: array[0..251] of THTMLEntity = (
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// A
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(E: 'Acirc'; Ch: 'Â'), // 0
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(E: 'acirc'; Ch: 'â'),
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(E: 'acute'; Ch: '´'),
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(E: 'AElig'; Ch: 'Æ'),
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(E: 'aelig'; Ch: 'æ'),
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(E: 'Agrave'; Ch: 'À'),
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(E: 'agrave'; Ch: 'à'),
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(E: 'alefsym';Ch: 'ℵ'),
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(E: 'Alpha'; Ch: 'Α'),
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(E: 'alpha'; Ch: 'α'),
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(E: 'amp'; Ch: '&'), // 10
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(E: 'and'; Ch: '∧'),
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(E: 'ang'; Ch: '∠'),
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(E: 'apos'; Ch: ''''),
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(E: 'Aring'; Ch: 'Å'),
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(E: 'aring'; Ch: 'å'),
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(E: 'asymp'; Ch: '≈'),
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(E: 'Atilde'; Ch: 'Ã'),
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(E: 'atilde'; Ch: 'ã'),
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(E: 'Auml'; Ch: 'Ä'),
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(E: 'auml'; Ch: 'ä'), // 20
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// B
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(E: 'bdquo'; Ch: '„'), // 21
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(E: 'Beta'; Ch: 'Β'),
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(E: 'beta'; Ch: 'β'),
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(E: 'brvbar'; Ch: '¦'),
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(E: 'bull'; Ch: '•'),
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// C
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(E: 'cap'; Ch: '∩'), // 26
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(E: 'Ccedil'; Ch: 'Ç'),
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(E: 'ccedil'; Ch: 'ç'),
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(E: 'cedil'; Ch: '¸'),
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(E: 'cent'; Ch: '¢'), // 39
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(E: 'Chi'; Ch: 'Χ'),
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(E: 'chi'; Ch: 'χ'),
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(E: 'circ'; Ch: 'ˆ'),
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(E: 'clubs'; Ch: '♣'),
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(E: 'cong'; Ch: '≅'), // approximately equal
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(E: 'copy'; Ch: '©'),
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(E: 'crarr'; Ch: '↵'), // carriage return
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(E: 'cup'; Ch: '∪'),
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(E: 'curren'; Ch: '¤'),
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// D
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(E: 'Dagger'; Ch: '‡'), // 40
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(E: 'dagger'; Ch: '†'),
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(E: 'dArr'; Ch: '⇓'), // wide down-arrow
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(E: 'darr'; Ch: '↓'), // narrow down-arrow
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(E: 'deg'; Ch: '°'),
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(E: 'Delta'; Ch: 'Δ'),
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(E: 'delta'; Ch: 'δ'),
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(E: 'diams'; Ch: '♦'),
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(E: 'divide'; Ch: '÷'),
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// E
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(E: 'Eacute'; Ch: 'É'),
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(E: 'eacute'; Ch: 'é'),
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(E: 'Ecirc'; Ch: 'Ê'),
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(E: 'ecirc'; Ch: 'ê'),
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(E: 'Egrave'; Ch: 'È'),
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(E: 'egrave'; Ch: 'è'),
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(E: 'empty'; Ch: '∅'),
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(E: 'emsp'; Ch: ' '), // Space character width of "m"
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(E: 'ensp'; Ch: ' '), // Space character width of "n"
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(E: 'Epsilon';Ch: 'Ε'), // capital epsilon
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(E: 'epsilon';Ch: 'ε'),
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(E: 'equiv'; Ch: '≡'),
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(E: 'Eta'; Ch: 'Η'),
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(E: 'eta'; Ch: 'η'),
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(E: 'ETH'; Ch: 'Ð'),
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(E: 'eth'; Ch: 'ð'),
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(E: 'Euml'; Ch: 'Ë'),
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(E: 'euml'; Ch: 'ë'),
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(E: 'euro'; Ch: '€'),
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(E: 'exist'; Ch: '∃'),
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// F
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(E: 'fnof'; Ch: 'ƒ'),
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(E: 'forall'; Ch: '∀'),
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(E: 'frac12'; Ch: '½'),
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(E: 'frac14'; Ch: '¼'),
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(E: 'frac34'; Ch: '¾'),
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(E: 'frasl'; Ch: '⁄'),
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// G
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(E: 'Gamma'; Ch: 'Γ'),
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(E: 'gamma'; Ch: 'γ'),
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(E: 'ge'; Ch: '≥'),
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(E: 'gt'; Ch: '>'),
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// H
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(E: 'hArr'; Ch: '⇔'), // wide horizontal double arrow
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(E: 'harr'; Ch: '↔'), // narrow horizontal double arrow
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(E: 'hearts'; Ch: '♥'),
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(E: 'hellip'; Ch: '…'),
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// I
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(E: 'Iacute'; Ch: 'Í'),
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(E: 'iacute'; Ch: 'í'),
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(E: 'Icirc'; Ch: 'Î'),
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(E: 'icirc'; Ch: 'î'),
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(E: 'iexcl'; Ch: '¡'),
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(E: 'Igrave'; Ch: 'Ì'),
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(E: 'igrave'; Ch: 'ì'),
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(E: 'image'; Ch: 'ℑ'), //
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(E: 'infin'; Ch: '∞'),
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(E: 'int'; Ch: '∫'),
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(E: 'Iota'; Ch: 'Ι'),
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(E: 'iota'; Ch: 'ι'),
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(E: 'iquest'; Ch: '¿'),
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(E: 'isin'; Ch: '∈'),
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(E: 'Iuml'; Ch: 'Ï'),
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(E: 'iuml'; Ch: 'ï'),
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// K
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(E: 'Kappa'; Ch: 'Κ'),
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(E: 'kappa'; Ch: 'κ'),
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// L
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(E: 'Lambda'; Ch: 'Λ'),
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(E: 'lambda'; Ch: 'λ'),
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(E: 'lang'; Ch: '⟨'), // Left-pointing angle bracket
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(E: 'laquo'; Ch: '«'),
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(E: 'lArr'; Ch: '⇐'), // Left-pointing wide arrow
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(E: 'larr'; Ch: '←'),
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(E: 'lceil'; Ch: '⌈'), // Left ceiling
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(E: 'ldquo'; Ch: '“'),
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(E: 'le'; Ch: '≤'),
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(E: 'lfloor'; Ch: '⌊'), // Left floor
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(E: 'lowast'; Ch: '∗'), // Low asterisk
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(E: 'loz'; Ch: '◊'),
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(E: 'lrm'; Ch: ''), // Left-to-right mark
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(E: 'lsaquo'; Ch: '‹'),
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(E: 'lsquo'; Ch: '‘'),
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(E: 'lt'; Ch: '<'),
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// M
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(E: 'macr'; Ch: '¯'),
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(E: 'mdash'; Ch: '—'),
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(E: 'micro'; Ch: 'µ'),
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(E: 'middot'; Ch: '·'),
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(E: 'minus'; Ch: '−'),
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(E: 'Mu'; Ch: 'Μ'),
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(E: 'mu'; Ch: 'μ'),
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// N
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(E: 'nabla'; Ch: '∇'),
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(E: 'nbsp'; Ch: ' '),
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(E: 'ndash'; Ch: '–'),
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(E: 'ne'; Ch: '≠'),
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(E: 'ni'; Ch: '∋'),
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(E: 'not'; Ch: '¬'),
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(E: 'notin'; Ch: '∉'), // math: "not in"
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(E: 'nsub'; Ch: '⊄'), // math: "not a subset of"
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(E: 'Ntilde'; Ch: 'Ñ'),
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(E: 'ntilde'; Ch: 'ñ'),
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(E: 'Nu'; Ch: 'Ν'),
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(E: 'nu'; Ch: 'ν'),
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// O
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(E: 'Oacute'; Ch: 'Ó'),
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(E: 'oacute'; Ch: 'ó'),
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(E: 'Ocirc'; Ch: 'Ô'),
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(E: 'ocirc'; Ch: 'ô'),
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(E: 'OElig'; Ch: 'Œ'),
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(E: 'oelig'; Ch: 'œ'),
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(E: 'Ograve'; Ch: 'Ò'),
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(E: 'ograve'; Ch: 'ò'),
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(E: 'oline'; Ch: '‾'),
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(E: 'Omega'; Ch: 'Ω'),
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(E: 'omega'; Ch: 'ω'),
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(E: 'Omicron';Ch: 'Ο'),
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(E: 'omicron';Ch: 'ο'),
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(E: 'oplus'; Ch: '⊕'), // Circled plus
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(E: 'or'; Ch: '∨'),
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(E: 'ordf'; Ch: 'ª'),
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(E: 'ordm'; Ch: 'º'),
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(E: 'Oslash'; Ch: 'Ø'),
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(E: 'oslash'; Ch: 'ø'),
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(E: 'Otilde'; Ch: 'Õ'),
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(E: 'otilde'; Ch: 'õ'),
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(E: 'otimes'; Ch: '⊗'), // Circled times
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(E: 'Ouml'; Ch: 'Ö'),
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(E: 'ouml'; Ch: 'ö'),
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// P
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(E: 'para'; Ch: '¶'),
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(E: 'part'; Ch: '∂'),
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(E: 'permil'; Ch: '‰'),
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(E: 'perp'; Ch: '⊥'),
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(E: 'Phi'; Ch: 'Φ'),
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(E: 'phi'; Ch: 'φ'),
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(E: 'Pi'; Ch: 'Π'),
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(E: 'pi'; Ch: 'π'), // lower-case pi
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(E: 'piv'; Ch: 'ϖ'),
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(E: 'plusmn'; Ch: '±'),
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(E: 'pound'; Ch: '£'),
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(E: 'Prime'; Ch: '″'),
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(E: 'prime'; Ch: '′'),
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(E: 'prod'; Ch: '∏'),
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(E: 'prop'; Ch: '∝'),
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(E: 'Psi'; Ch: 'Ψ'),
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(E: 'psi'; Ch: 'ψ'),
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// Q
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(E: 'quot'; Ch: '"'),
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// R
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(E: 'radic'; Ch: '√'),
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(E: 'rang'; Ch: '⟩'), // right-pointing angle bracket
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(E: 'raquo'; Ch: '»'),
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(E: 'rArr'; Ch: '⇒'),
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(E: 'rarr'; Ch: '→'),
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(E: 'rceil'; Ch: '⌉'), // right ceiling
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(E: 'rdquo'; Ch: '”'),
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(E: 'real'; Ch: 'ℜ'), // R in factura
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(E: 'reg'; Ch: '®'),
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(E: 'rfloor'; Ch: '⌋'), // Right floor
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(E: 'Rho'; Ch: 'Ρ'),
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(E: 'rho'; Ch: 'ρ'),
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(E: 'rlm'; Ch: ''), // right-to-left mark
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(E: 'rsaquo'; Ch: '›'),
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(E: 'rsquo'; Ch: '’'),
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MIN_FONTSIZE = 6;
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// S
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(E: 'sbquo'; Ch: '‚'),
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(E: 'Scaron'; Ch: 'Š'),
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(E: 'scaron'; Ch: 'š'),
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(E: 'sdot'; Ch: '⋅'), // math: dot operator
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(E: 'sect'; Ch: '§'),
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(E: 'shy'; Ch: ''), // conditional hyphen
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(E: 'Sigma'; Ch: 'Σ'),
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(E: 'sigma'; Ch: 'σ'),
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(E: 'sigmaf'; Ch: 'ς'),
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(E: 'sim'; Ch: '∼'), // similar
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(E: 'spades'; Ch: '♠'),
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(E: 'sub'; Ch: '⊂'),
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(E: 'sube'; Ch: '⊆'),
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(E: 'sum'; Ch: '∑'),
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(E: 'sup'; Ch: '⊃'),
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(E: 'sup1'; Ch: '¹'),
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(E: 'sup2'; Ch: '²'),
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(E: 'sup3'; Ch: '³'),
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(E: 'supe'; Ch: '⊇'),
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(E: 'szlig'; Ch: 'ß'),
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//T
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(E: 'Tau'; Ch: 'Τ'),
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(E: 'tau'; Ch: 'τ'),
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(E: 'there4'; Ch: '∴'),
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(E: 'Theta'; Ch: 'Θ'),
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(E: 'theta'; Ch: 'θ'),
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(E: 'thetasym';Ch: 'ϑ'),
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(E: 'thinsp'; Ch: ' '), // thin space
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(E: 'THORN'; Ch: 'Þ'),
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(E: 'thorn'; Ch: 'þ'),
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(E: 'tilde'; Ch: '˜'),
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(E: 'times'; Ch: '×'),
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(E: 'trade'; Ch: '™'),
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// U
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(E: 'Uacute'; Ch: 'Ú'),
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(E: 'uacute'; Ch: 'ú'),
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(E: 'uArr'; Ch: '⇑'), // wide up-arrow
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(E: 'uarr'; Ch: '↑'),
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(E: 'Ucirc'; Ch: 'Û'),
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(E: 'ucirc'; Ch: 'û'),
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(E: 'Ugrave'; Ch: 'Ù'),
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(E: 'ugrave'; Ch: 'ù'),
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(E: 'uml'; Ch: '¨'),
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(E: 'upsih'; Ch: 'ϒ'),
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(E: 'Upsilon';Ch: 'Υ'),
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(E: 'upsilon';Ch: 'υ'),
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(E: 'Uuml'; Ch: 'Ü'),
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(E: 'uuml'; Ch: 'ü'),
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// W
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(E: 'weierp'; Ch: '℘'), // Script Capital P; Weierstrass Elliptic Function
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// X
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(E: 'Xi'; Ch: 'Ξ'),
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(E: 'xi'; Ch: 'ξ'),
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// Y
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(E: 'Yacute'; Ch: 'Ý'),
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(E: 'yacute'; Ch: 'ý'),
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(E: 'yen'; Ch: '¥'),
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(E: 'Yuml'; Ch: 'Ÿ'),
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(E: 'yuml'; Ch: 'ÿ'),
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// Z
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(E: 'Zeta'; Ch: 'Ζ'),
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(E: 'zeta'; Ch: 'ζ'),
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(E: 'zwj'; Ch: ''), // Zero-width joiner
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(E: 'zwnj'; Ch: ''), // Zero-width non-joiner
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(E: '#160'; Ch: ' ') // numerical value of " "
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);
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*)
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{==============================================================================}
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{ TsHTMLReader }
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{==============================================================================}
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@ -424,6 +141,10 @@ begin
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inherited Create(AWorkbook);
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FFormatSettings := HTMLParams.FormatSettings;
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ReplaceFormatSettings(FFormatSettings, FWorkbook.FormatSettings);
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FPointSeparatorSettings := DefaultFormatSettings;
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FPointSeparatorSettings.DecimalSeparator := '.';
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FTableCounter := -1;
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FAttrList := TsHTMLAttrList.Create;
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FCellFont := TsFont.Create;
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@ -462,6 +183,9 @@ begin
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if fntIndex = -1 then
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fntIndex := FWorkbook.AddFont(FCellFont.FontName, FCellFont.Size,
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FCellFont.Style, FCellFont.Color, FCellFont.Position);
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if fntIndex <> 0 then
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Include(FCurrCellFormat.UsedFormattingFields, uffFont) else
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Exclude(FCurrCellFormat.UsedFormattingFields, uffFont);
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FCurrCellFormat.FontIndex := fntIndex;
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cell^.FormatIndex := FWorkbook.AddCellFormat(FCurrCellFormat);
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@ -533,6 +257,96 @@ begin
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end;
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end;
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procedure TsHTMLReader.ExtractFont(AFont: TsFont);
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const
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Factor = 1.2;
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var
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idx: Integer;
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L: TStringList;
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i, ip, im: Integer;
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s: String;
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f: Double;
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defFntSize: Single;
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begin
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// style tags
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idx := FAttrList.IndexOfName('font-family');
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if idx > -1 then begin
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L := TStringList.Create;
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try
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L.StrictDelimiter := true;
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L.DelimitedText := FAttrList[idx].Value;
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AFont.FontName := L[0];
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finally
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L.Free;
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end;
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end;
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idx := FAttrList.IndexOfName('font-size');
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if idx > -1 then begin
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defFntSize := FWorkbook.GetDefaultFont.Size;
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s := FAttrList[idx].Value;
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case s of
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'medium', '3' : AFont.Size := defFntSize;
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'large', '4' : AFont.Size := defFntSize*FACTOR;
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'x-large', '5' : AFont.Size := defFntSize*FACTOR*FACTOR;
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'xx-large', '6' : AFont.Size := defFntSize*FACTOR*FACTOR*FACTOR;
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'small', '2' : AFont.Size := Max(MIN_FONTSIZE, defFntSize/FACTOR);
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'x-small' : AFont.Size := Max(MIN_FONTSIZE, defFntSize/FACTOR/FACTOR);
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'xx-small', '1' : AFont.Size := Max(MIN_FONTSIZE, defFntSize/FACTOR/FACTOR/FACTOR);
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'larger' : AFont.Size := AFont.Size * FACTOR;
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'smaller' : AFont.Size := Max(MIN_FONTSIZE, AFont.Size / FACTOR);
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else
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i := 0;
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im := 0;
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ip := pos('%', s);
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if ip = 0 then begin
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im := pos('rem', s);
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if im = 0 then
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im := pos('em', s);
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end;
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if (ip > 0) then i := ip else
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if (im > 0) then i := im;
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if i > 0 then
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begin
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s := copy(s, 1, i-1);
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if TryStrToFloat(s, f, FPointSeparatorSettings) then
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begin
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if ip > 0 then f := f * 0.01;
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AFont.Size := Max(MIN_FONTSIZE, abs(f) * defFntSize);
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end;
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end else
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AFont.Size := Max(MIN_FONTSIZE, HTMLLengthStrToPts(s));
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end;
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end;
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idx := FAttrList.IndexOfName('font-style');
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if idx > -1 then
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case FAttrList[idx].Value of
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'normal' : Exclude(AFont.Style, fssItalic);
|
||||
'italic' : Include(AFont.Style, fssItalic);
|
||||
'oblique' : Include(AFont.Style, fssItalic);
|
||||
end;
|
||||
|
||||
idx := FAttrList.IndexOfName('font-weight');
|
||||
if idx > -1 then
|
||||
begin
|
||||
s := FAttrList[idx].Value;
|
||||
if TryStrToInt(s, i) and (i >= 700) then Include(AFont.Style, fssBold);
|
||||
end;
|
||||
|
||||
idx := FAttrList.IndexOfName('text-decoration');
|
||||
if idx > -1 then
|
||||
begin
|
||||
s := FAttrList[idx].Value;
|
||||
if pos('underline', s) <> 0 then Include(AFont.Style, fssUnderline);
|
||||
if pos('line-through', s) <> 0 then Include(AFont.Style, fssStrikeout);
|
||||
end;
|
||||
|
||||
idx := FAttrList.IndexOfName('color');
|
||||
if idx > -1 then
|
||||
AFont.Color := HTMLColorStrToColor(FAttrList[idx].Value);
|
||||
end;
|
||||
|
||||
procedure TsHTMLReader.ExtractHorAlign;
|
||||
var
|
||||
idx: Integer;
|
||||
@ -691,6 +505,7 @@ begin
|
||||
ExtractBackgroundColor;
|
||||
ExtractHorAlign;
|
||||
ExtractVertAlign;
|
||||
ExtractFont(FCellFont);
|
||||
end else
|
||||
if ((NoCaseTag = '<TH>') or (pos('<TH ', NoCaseTag) = 1)) and FInTable then
|
||||
begin
|
||||
|
||||
@ -40,7 +40,8 @@ type
|
||||
implementation
|
||||
|
||||
uses
|
||||
Strings;
|
||||
Strings,
|
||||
fpsUtils;
|
||||
|
||||
const
|
||||
// http://unicode.e-workers.de/entities.php
|
||||
@ -481,7 +482,7 @@ begin
|
||||
inc(i);
|
||||
end;
|
||||
inc(i); // skip the final '"'
|
||||
Add(TsHTMLAttr.Create(lowercase(nam), value));
|
||||
Add(TsHTMLAttr.Create(lowercase(trim(nam)), trim(value)));
|
||||
nam := '';
|
||||
end;
|
||||
' ', '/', '>': ;
|
||||
@ -514,12 +515,16 @@ begin
|
||||
begin
|
||||
case AStyle[i] of
|
||||
':': begin // name-value separator
|
||||
inc(i); // skip ':'
|
||||
while (i <= len) and (AStyle[i] = ' ') do inc(i); // skip white space
|
||||
value := '';
|
||||
while (i <= len) and (AStyle[i] <> ';') do
|
||||
begin
|
||||
value := value + AStyle[i];
|
||||
inc(i); // skip final ';'
|
||||
Add(TsHTMLAttr.Create(lowercase(nam), value));
|
||||
inc(i);
|
||||
end;
|
||||
// inc(i); // skip final ';'
|
||||
Add(TsHTMLAttr.Create(lowercase(trim(nam)), UnquoteStr(trim(value))));
|
||||
nam := '';
|
||||
end;
|
||||
' ': ;
|
||||
|
||||
@ -131,6 +131,8 @@ function TintedColor(AColor: TsColor; tint: Double): TsColor;
|
||||
|
||||
function AnalyzeCompareStr(AString: String; out ACompareOp: TsCompareOperation): String;
|
||||
|
||||
function UnquoteStr(AString: String): String;
|
||||
|
||||
function InitSortParams(ASortByCols: Boolean = true; ANumSortKeys: Integer = 1;
|
||||
ASortPriority: TsSortPriority = spNumAlpha): TsSortParams;
|
||||
|
||||
@ -1467,6 +1469,8 @@ end;
|
||||
compatible with the TColor data type of the graphics unit.
|
||||
-------------------------------------------------------------------------------}
|
||||
function HTMLColorStrToColor(AValue: String): TsColor;
|
||||
var
|
||||
c: Integer;
|
||||
begin
|
||||
if AValue = '' then
|
||||
Result := scNotDefined
|
||||
@ -1474,10 +1478,6 @@ begin
|
||||
if AValue[1] = '#' then begin
|
||||
AValue[1] := '$';
|
||||
Result := LongRGBToExcelPhysical(DWord(StrToInt(AValue)));
|
||||
end else
|
||||
if AValue[1] in ['0'..'9','A'..'F', 'a'..'f'] then begin
|
||||
AValue := '$' + AValue;
|
||||
Result := LongRGBToExcelPhysical(DWord(StrToInt(AValue)));
|
||||
end else begin
|
||||
AValue := lowercase(AValue);
|
||||
if AValue = 'red' then
|
||||
@ -1505,7 +1505,11 @@ begin
|
||||
else if AValue = 'green' then
|
||||
Result := $008000
|
||||
else if AValue = 'olive' then
|
||||
Result := $008080;
|
||||
Result := $008080
|
||||
else if TryStrToInt('$' + AValue, c) then
|
||||
Result := LongRGBToExcelPhysical(DWord(StrToInt('$' + AValue)))
|
||||
else
|
||||
Result := scNotDefined
|
||||
end;
|
||||
end;
|
||||
|
||||
@ -1661,6 +1665,21 @@ begin
|
||||
RemoveChars(0, coEqual);
|
||||
end;
|
||||
|
||||
{@@ ----------------------------------------------------------------------------
|
||||
Removes quotation characters which enclose a string
|
||||
-------------------------------------------------------------------------------}
|
||||
function UnquoteStr(AString: String): String;
|
||||
begin
|
||||
Result := AString;
|
||||
if Result = '' then exit;
|
||||
if ((Result[1] = '''') and (Result[Length(Result)] = '''')) or
|
||||
(Result[1] = '"') and (Result[Length(Result)] = '"') then
|
||||
begin
|
||||
Delete(Result, 1, 1);
|
||||
Delete(Result, Length(Result), 1);
|
||||
end;
|
||||
end;
|
||||
|
||||
{@@ ----------------------------------------------------------------------------
|
||||
Initializes a Sortparams record. This record sets paramaters used when cells
|
||||
are sorted.
|
||||
|
||||
Reference in New Issue
Block a user