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exports.name = 'Proper Markup and Stylesheets';
exports.description = 'Web Accessibility Guideline: Use markup and style sheets and do so properly';
exports.rule = function(report) {
/* Checkpoint 3.2 [Priority 2] **********************************************/
// require that the document contains a dtd.
if(!document.doctype) {
report.error('No doctype given for the document', null);
}
/* Checkpoint 3.3 [Priority 2] **********************************************/
// use style sheets instead of HTML attributes to specify formatting
// information.
$5('b').each(function() {
report.error('The b tag shouldn\'t be used, use strong instead', this);
});
$5('i').each(function() {
report.error('The i tag shouldn\'t be used, use em', this);
});
$5('[font]').each(function() {
report.error('Use css instead of the font attribute for formatting', this);
});
/* Checkpoint 3.5 [Priority 2] **********************************************/
// header transitions which are not allowed
var avoids = [ ["H1", "H3"]
, ["H1", "H4"]
, ["H1", "H5"]
, ["H2", "H4"]
, ["H2", "H5"]
, ["H3", "H5"] ];
// return true if the value `p` is in `avoids`. underscore's
// _.contains doesn't work here because it compares array references
var badPair = function (p) {
return _.find(avoids, function (s) {
return s[0] == p[0] && s[1] == p[1];
});
};
// examine the sequence of headings in each <div> for
// proper order
$('div').each(function (i, elt) {
var hs = $(elt).find(':header');
var ts = $(hs).map(function () { return this.tagName; });
for (var j=0; j < hs.length-1; j++) {
if (badPair([ts[j], ts[j+1]])) {
report.error('Invalid use of headers ' + ts[j] + ' -> ' + ts[j+1], hs[j+1]);
}
}
});
/* Checkpoint 3.6 [Priority 2] **********************************************/
/* Checkpoint 3.7 [Priority 2] **********************************************/
};
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