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88 lines
3.3 KiB
Plaintext
88 lines
3.3 KiB
Plaintext
/* ********************************************************************** */
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/* Implementation of the MathML W3C REC http://www.w3.org/TR/REC-MathML */
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/* Section 3. Presentation Markup
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3.2 Token Elements
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3.2.1 Attributes common to token elements
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C- 3.2.2 <mi> -- identifier
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C 3.2.3 <mn> -- number
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C- 3.2.4 <mo> -- operator, fence, or separator
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CSS 3.2.5 <mtext> -- text
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3.2.6 <mspace/> -- space
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CSS 3.2.7 <ms> -- string literal
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3.3 General Layout Schemata
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C 3.3.1 <mrow> -- horizontally group any number of subexpressions
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C 3.3.2 <mfrac> -- form a fraction from two subexpressions
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3.3.3 <msqrt> and <mroot> -- form a radical
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3.3.4 <mstyle> -- style change
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CSS 3.3.5 <merror> -- enclose a syntax error message from a preprocessor
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3.3.6 <mpadded> -- adjust space around content
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C 3.3.7 <mphantom> -- make content invisible but preserve its size
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3.3.8 <mfenced> -- surround content with a pair of fences
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3.4 Script and Limit Schemata
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C 3.4.1 <msub> -- attach a subscript to a base
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C 3.4.2 <msup> -- attach a superscript to a base
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C 3.4.3 <msubsup> -- attach a subscript-superscript pair to a base
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C 3.4.4 <munder> -- attach an underscript to a base
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C 3.4.5 <mover> -- attach an overscript to a base
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C 3.4.6 <munderover> -- attach an underscript-overscript pair to a base
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C 3.4.7 <mmultiscripts> -- attach prescripts and tensor indices to a base
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3.5 Tables and Matrices
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CH 3.5.1 <mtable> -- table or matrix
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CH 3.5.2 <mtr> -- row in a table or matrix
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CH 3.5.3 <mtd> -- one entry in a table or matrix
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3.5.4 <maligngroup/> and <malignmark/> -- alignment markers
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3.6 Enlivening Expressions
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3.6.1 <maction> -- bind actions to a subexpression
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Table of argument requirements
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------------------------------
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tag number of children
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------------------------------
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<mrow> 0 or more
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<mfrac> 2 (numerator denominator)
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<msqrt> 1
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<mroot> 2 (base index)
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<mstyle> 1
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<merror> 1
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<mpadded> 1
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<mphantom> 1
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<mfenced> 0 or more
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<msub> 2 (base subscript)
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<msup> 2 (base superscript)
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<msubsup> 3 (base subscript superscript)
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<munder> 2 (base underscript)
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<mover> 2 (base overscript)
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<munderover> 3 (base underscript overscript)
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<mmultiscripts> 1 or more
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(base ( subscript superscript ) * [ <mprescripts/> ( presubscript
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presuperscript ) * ])
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<mtable> 0 or more rows (<mtr>s, inferred if necessary)
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<mtr> 0 or more table elements (<mtd>s, inferred if necessary)
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<mtd> 1
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<maction> 1 or more (argument roles depend on actiontype attribute)
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*/
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/* NOTES:
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Since frames are not refCounted, don't use nsCOMPtr with them
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*/
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#if 0
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// NOTES ----
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// border and padding -- study nsHTMLButtonControlFrame.cpp ...
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// Text size infos
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nsCOMPtr<nsIFontMetrics> fm;
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aPresContext->GetMetricsFor(GetStyleFont()->mFont, getter_AddRefs(fm));
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nsAutoString text;
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fm->GetHeight([height]);
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renderingContext->SetFont(fm);
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renderingContext->GetWidth( text, [width] );
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fm->GetMaxAscent( [baseline] );
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fm->GetMaxDescent( [depth] );
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#endif
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