A quick note in case it helps someone else using WordPress. I had a bit of a fight trying to get WordPress to output the HTML that it was given for a post unaltered, this article records what I did.<\/p>\n
I write these articles in markdown<\/a> syntax, then convert them to HTML using pandoc<\/a>. One advantage of pandoc is that it supports inline Latex math markup. Here\u00e2\u20ac\u2122s a snippet from the source of an article:<\/p>\n The dash at the front is markdown for a bulleted list. The dollars switch to math mode. Here\u00e2\u20ac\u2122s the HTML that pandoc converts that to (i.e.\u00c2\u00a0it\u00e2\u20ac\u2122s what appears in the post editor box in the wordpress interface):<\/p>\n This is perfect. Now here\u00e2\u20ac\u2122s what WordPress was outputting (using \u00e2\u20ac\u0153View Source\u00e2\u20ac\u009d in a browser):<\/p>\n See it? WordPress has added a \u00e2\u20ac\u0153 It seems that WordPress has an output filter called \u00e2\u20ac\u0153wpautop\u00e2\u20ac\u009d that\u00e2\u20ac\u2122s adding this spurious markup. If you disable it, then what you get out is what you put in \u00e2\u20ac\u201c which is exactly what I want. I did that by editing the and<\/p>\n All my embedded maths is correctly formatted inline as part of the paragraph now (unless you\u00e2\u20ac\u2122re viewing in IE, which doesn\u00e2\u20ac\u2122t support MathML at all).<\/p>\n Perhaps this will help someone out there in the future.<\/p>\n","protected":false},"excerpt":{"rendered":" A quick note in case it helps someone else using WordPress. I had a bit of a fight trying to get WordPress to output the HTML that it was given for a post unaltered, this article records what I did. I write these articles in markdown syntax, then convert them to HTML using pandoc. One\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[6,44],"_links":{"self":[{"href":"https:\/\/www.fussylogic.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/817"}],"collection":[{"href":"https:\/\/www.fussylogic.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fussylogic.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fussylogic.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fussylogic.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=817"}],"version-history":[{"count":2,"href":"https:\/\/www.fussylogic.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/817\/revisions"}],"predecessor-version":[{"id":819,"href":"https:\/\/www.fussylogic.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/817\/revisions\/819"}],"wp:attachment":[{"href":"https:\/\/www.fussylogic.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fussylogic.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fussylogic.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} - $\\frac{1}{2}$. If half the roses are red, then half are not red. Simple\n logic. Well done amusing student.<\/code><\/pre>\n<li><math display="inline" xmlns="http:\/\/www.w3.org\/1998\/Math\/MathML">\n<mrow><mfrac><mn>1<\/mn><mn>2<\/mn><\/mfrac><\/mrow><\/math>. If half\nthe roses are red, then half are not red. Simple logic. Well done\namusing student.<\/li><\/code><\/pre>\n<li> <math display="inline" xmlns="http:\/\/www.w3.org\/1998\/Math\/MathML">\n<mrow><mfrac><mn>1<\/mn><mn>2<\/mn><\/mfrac><\/mrow><\/math> <p>. If half\nthe roses are red, then half are not red. Simple logic. Well done\namusing student.<\/li><\/code><\/pre>\n<p><\/code>\u00e2\u20ac\u009d all on its own. It\u00e2\u20ac\u2122s completely unwanted, and it\u00e2\u20ac\u2122s also unbalanced in that there is no closing \u00e2\u20ac\u0153<\/p><\/code>\u00e2\u20ac\u009d. It\u00e2\u20ac\u2122s clearly a bug in WordPress. It took me a while to find a fix, and it\u00e2\u20ac\u2122s not a real fix for the bug, but it\u00e2\u20ac\u2122s all I needed.<\/p>\nwp-includes\/default-filters.php<\/code> file and commenting out these lines:<\/p>\nadd_filter( 'the_content', 'wpautop' );<\/code><\/pre>\nadd_filter( 'the_excerpt', 'wpautop' );<\/code><\/pre>\n