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  • Committer: Jacques Distler
  • Date: 2010-10-03 15:14:30 UTC
  • Revision ID: distler@golem.ph.utexas.edu-20101003151430-63lclcdosj2qb0ot
Tags: 1.4.5
itex2MML 1.4.5: Array Environment

Support for \begin{array}[b]{clrc} .... \end{array}
-- the standard LaTeX array environment, with an
optional argument giving the alignment of the array
with respect to the current equation axis ('b', 't'
or 'c', defaulting to 'c'), and a mandatory argument
giving the alignment of the columns.
\begin{array}{cc...c} ...\end{array} is equivalent
to \begin{matrix} ... \end{matrix}.

Support for an optional argument on \sqrt. The
(LaTeX standard) \sqrt[3]{a} is equivalent to the
(itex) \root{3}{a}.

Support for \tbinom{}{}.

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itex-src/itex2MML.l
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/*             itex2MML 1.4.4
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 *   itex2MML.l last modified 9/30/2010
 
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/*             itex2MML 1.4.5
 
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 *   itex2MML.l last modified 10/2/2010
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 */
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%{
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%}
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%option noyywrap
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%x MATH ATTRIBUTELIST BBOLD FRAKTUR CALLIGRAPHIC ROMAN PLAINTEXT INT1 INT2 INT3 MATHENV SVGENV SVGEND OPTARG
 
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%x MATH ATTRIBUTELIST BBOLD FRAKTUR CALLIGRAPHIC ROMAN PLAINTEXT INT1 INT2 INT3 MATHENV SVGENV SVGEND OPTARG ARRAYOPTIONS COLOPTS
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%{
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#include <string.h>
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int itex2MML_lineno = 1;
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int itex2MML_inoptarg[itex2MML_optarg_depth];
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int itex2MML_optarg_ind = 0;
 
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int itex2MML_env_start = 0;
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int itex2MML_rowposn = 0;
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int itex2MML_displaymode = 0;
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"^"            return SUP;
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"_"            return SUB; 
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"{"[\t\r\n ]*"}"   return EMPTYMROW;
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"{"            {itex2MML_rowposn = 2; itex2MML_inoptarg[itex2MML_optarg_ind] = itex2MML_inoptarg[itex2MML_optarg_ind]*2; return MROWOPEN;}
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"}"            {itex2MML_inoptarg[itex2MML_optarg_ind] = itex2MML_inoptarg[itex2MML_optarg_ind]/2; return MROWCLOSE;}
 
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"{"            {itex2MML_rowposn = 2; if(itex2MML_inoptarg[itex2MML_optarg_ind] != 0) itex2MML_inoptarg[itex2MML_optarg_ind]++; return MROWOPEN;}
 
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"}"            {if(itex2MML_inoptarg[itex2MML_optarg_ind] != 0) itex2MML_inoptarg[itex2MML_optarg_ind]--; return MROWCLOSE;}
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"\\left"       itex2MML_rowposn=2; return LEFT;
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"\\right"      return RIGHT;
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"\\tfrac"         {return TFRAC;}
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"\\binom"        {return BINOM;}
 
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"\\tbinom"        {return TBINOM;}
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"\\tensor"       {return TENSOR;}
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"\\underoverset"  {return UNDEROVER;}
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"\\sqrt"         {return SQRT;}
 
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"\\sqrt"         {BEGIN(OPTARG); return SQRT;}
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"\\root"         {return ROOT;}
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"\\mathcal"       {BEGIN(CALLIGRAPHIC); return CAL;}
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"\\begin"        {BEGIN(MATHENV); return BEGINENV;}
 
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"\\begin"        {itex2MML_env_start = 1; BEGIN(MATHENV); return BEGINENV;}
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"\\end"        {BEGIN(MATHENV); return ENDENV;}
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"\\substack"     {return SUBSTACK;}
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}
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<MATHENV>{
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"\{matrix\}" {BEGIN(MATH); return MATRIX;}
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"\{pmatrix\}" {BEGIN(MATH); return PMATRIX;}
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"\{bmatrix\}" {BEGIN(MATH); return BMATRIX;}
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"\{Bmatrix\}" {BEGIN(MATH); return BBMATRIX;}
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"\{vmatrix\}" {BEGIN(MATH); return VMATRIX;}
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"\{Vmatrix\}" {BEGIN(MATH); return VVMATRIX;}
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"\{smallmatrix\}" {BEGIN(MATH); return SMALLMATRIX;}
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"\{cases\}" {BEGIN(MATH); return CASES;}
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"\{aligned\}" {BEGIN(MATH); return ALIGNED;}
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"\{gathered\}" {BEGIN(MATH); return GATHERED;}
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"\{split\}" {BEGIN(MATH); return ALIGNED;}
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"\{svg\}" {BEGIN(SVGENV); return SVG;}
 
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"\{matrix\}" {itex2MML_env_start = 0; BEGIN(MATH); return MATRIX;}
 
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"\{pmatrix\}" {itex2MML_env_start = 0; BEGIN(MATH); return PMATRIX;}
 
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"\{bmatrix\}" {itex2MML_env_start = 0; BEGIN(MATH); return BMATRIX;}
 
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"\{Bmatrix\}" {itex2MML_env_start = 0; BEGIN(MATH); return BBMATRIX;}
 
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"\{vmatrix\}" {itex2MML_env_start = 0; BEGIN(MATH); return VMATRIX;}
 
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"\{Vmatrix\}" {itex2MML_env_start = 0; BEGIN(MATH); return VVMATRIX;}
 
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"\{smallmatrix\}" {itex2MML_env_start = 0; BEGIN(MATH); return SMALLMATRIX;}
 
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"\{cases\}" {itex2MML_env_start = 0; BEGIN(MATH); return CASES;}
 
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"\{aligned\}" {itex2MML_env_start = 0; BEGIN(MATH); return ALIGNED;}
 
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"\{gathered\}" {itex2MML_env_start = 0; BEGIN(MATH); return GATHERED;}
 
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"\{split\}" {itex2MML_env_start = 0; BEGIN(MATH); return ALIGNED;}
 
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"\{array\}" {if (itex2MML_env_start == 1) BEGIN(ARRAYOPTIONS); else BEGIN(MATH); return ARRAY;}
 
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"\{svg\}" {itex2MML_env_start = 0; BEGIN(SVGENV); return SVG;}
 
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}
 
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<ARRAYOPTIONS>{
 
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"[t]" {yylval=itex2MML_copy_string("axis 1"); return ARRAYALIGN;}
 
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"[c]" {yylval=itex2MML_copy_string("center"); return ARRAYALIGN;}
 
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"[b]" {yylval=itex2MML_copy_string("axis -1"); return ARRAYALIGN;}
 
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"\{"  {BEGIN(COLOPTS); return ST;}
 
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[\t\n\r ]+       ;
 
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}
 
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<COLOPTS>{
 
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"\}"  {itex2MML_env_start = 0; BEGIN(MATH); return END;}
 
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"c"   {yylval=itex2MML_copy_string("center"); return COLUMNALIGN;}
 
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"l"   {yylval=itex2MML_copy_string("left"); return COLUMNALIGN;}
 
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"r"   {yylval=itex2MML_copy_string("right"); return COLUMNALIGN;}
 
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[\t\n\r ]+       ;
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}
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<SVGENV>{