Add a welcome shell

James Moger

2014-03-16 e725e16eaf7b7ddc1608b1038ade19c26b5b2048

1
PR.registerLangHandler(PR.createSimpleLexer([["pln",/^[\t\n\r \xa0]+/,null,"\t\n\r \u00a0"],["com",/^%[^\n\r]*/,null,"%"]],[["kwd",/^\\[@-Za-z]+/],["kwd",/^\\./],["typ",/^[$&]/],["lit",/[+-]?(?:\.\d+|\d+(?:\.\d*)?)(cm|em|ex|in|pc|pt|bp|mm)/i],["pun",/^[()=[\]{}]+/]]),["latex","tex"]);