{"id":42527,"date":"2018-12-25T03:01:13","date_gmt":"2018-12-24T17:01:13","guid":{"rendered":"http:\/\/www.rjmprogramming.com.au\/ITblog\/?p=42527"},"modified":"2018-12-24T14:27:58","modified_gmt":"2018-12-24T04:27:58","slug":"circular-text-or-emojis-primer-tutorial","status":"publish","type":"post","link":"https:\/\/www.rjmprogramming.com.au\/ITblog\/circular-text-or-emojis-primer-tutorial\/","title":{"rendered":"Circular Text or Emojis Primer Tutorial"},"content":{"rendered":"<div style=\"width: 230px\" class=\"wp-caption alignnone\"><a target=_blank href=\"http:\/\/www.rjmprogramming.com.au\/HTMLCSS\/circular_text.html\"><img decoding=\"async\" style=\"border: 15px solid pink;\" alt=\"Circular Text or Emojis Primer Tutorial\" src=\"http:\/\/www.rjmprogramming.com.au\/HTMLCSS\/circular_text_or_emoji.jpg\" title=\"Circular Text or Emojis Primer Tutorial\"  style=\"float:left;\"   \/><\/a><p class=\"wp-caption-text\">Circular Text or Emojis Primer Tutorial<\/p><\/div>\n<p>We&#8217;ve got a &#8220;proof of concept&#8221; tutorial for you today, because we got put onto an idea for something by <a target=_blank title='Usefulk link, thanks' href='https:\/\/appendto.com\/2016\/09\/how-to-make-circularcurved-text-with-javascript\/'>How to Make Circular\/Curved Text with JavaScript<\/a>, thanks.  We wanted to extend the logic of that &#8230;<\/p>\n<ul>\n<li>ascii codes (of characters) less than 256, text handling &#8230; to, now, be able to handle &#8230;<\/li>\n<li>emoji data (or that&#8217;s what we like to &#8220;nickname&#8221; it &#8230; sorry if this annoys, but it really concerns UTF-8 characters really<\/li>\n<\/ul>\n<p>We resisted the <a target=_blank title='Sushi Train Circuit Game Tutorial' href='https:\/\/www.rjmprogramming.com.au\/ITblog\/sushi-train-circuit-game-tutorial\/'>Sushi Train Circuit Game Tutorial<\/a> ideas, because it isn&#8217;t lunchtime, and opted to allow the user to enter their own text (including any emojis (available via Command-Control-Space menu here at Mac OS X) or via &amp;#[CodePoint]; HTML Entity (decimal or hexidecimal (CodePoint)) entries (where we&#8217;d like you to put &amp;amp; rather than just &amp; if you are going to do this, and if you want to do this, but need tips on how you might approach this, please consult our previous <a target=_blank title='Karaoke via YouTube API in Iframe Emoji Tutorial' href='https:\/\/www.rjmprogramming.com.au\/ITblog\/karaoke-via-youtube-api-in-iframe-emoji-tutorial\/'>Karaoke via YouTube API in Iframe Emoji Tutorial<\/a> where we often start at good ol&#8217; <a target=_blank title='emojipedia' href='http:\/\/emojipedia.org'>emojipedia<\/a>).<\/p>\n<p>Maybe there will be some sequels, but for the meantime you can examine the HTML and Javascript <a target=_blank href=\"http:\/\/www.rjmprogramming.com.au\/HTMLCSS\/circular_text.html_GETME\" title=\"circular_text.html\">circular_text.html<\/a> code (including more thank you links), that you can try for yourself at this <a target=_blank href=\"http:\/\/www.rjmprogramming.com.au\/HTMLCSS\/circular_text.html\" title=\"Click picture\">live run<\/a> link.<\/p>\n<p>With that in mind, take a look at us creeping through the text characters you enter, and notice how an emoji will have two bytes in a row with ascii code greater than 255 &#8230;<\/p>\n<p><code><br \/>\n        var etxt=intxt.replace(\/\\&amp;amp\\;\/g,'&amp;').replace(\/\\;\\&amp;\\#\/g,',').split('&amp;#'); \/\/ intxt is your text<br \/>\n        var txt=[], zero=0; \/\/ changed elsewhere as well<br \/>\n        <br \/>\n        var one=1;<br \/>\n        for (kk=zero; kk&lt;etxt[k].length; kk+=one) {<br \/>\n         if (etxt[k].substring(kk, eval(1 + kk)).<a target=_blank title='charCodeAt information from w3schools' href='https:\/\/www.w3schools.com\/jsref\/jsref_charcodeat.asp'>charCodeAt<\/a>(0) &gt; 255) { \/\/ emoji found<br \/>\n          txt.push(<a target=_blank title='String.fromCodePoint() information' href='https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/String\/fromCodePoint'>String.fromCodePoint<\/a>(eval('' + etxt[k].substring(kk).charCodeAt(0)),eval('' + etxt[k].substring(kk).substring(1).charCodeAt(0))   ));<br \/>\n          one=2;<br \/>\n         } else {  \/\/ normal ascii text<br \/>\n          txt.push(etxt[k].substring(kk, eval(1 + kk)));<br \/>\n          one=1;<br \/>\n         }<br \/>\n        }<br \/>\n        }<br \/>\n        one=1;<br \/>\n        zero=0;<br \/>\n<\/code><\/p>\n<p>You can also see this play out at WordPress 4.1.1&#8217;s <a target=_blank title='Circular Text or Emojis Primer Tutorial' href='https:\/\/www.rjmprogramming.com.au\/ITblog\/circular-text-or-emojis-primer-tutorial\/'>Circular Text or Emojis Primer Tutorial<\/a>.<\/p>\n<p>If this was interesting you may be interested in <a title='Click here to see topics in which you might be interested' href='#d42527' onclick='var dv=document.getElementById(\"d42527\"); dv.innerHTML = \"&lt;iframe width=670 height=600 src=\" + \"https:\/\/www.rjmprogramming.com.au\/ITblog\/tag\/emoji\" + \"&gt;&lt;\/iframe&gt;\"; dv.style.display = \"block\";'>this<\/a> too.<\/p>\n<div id='d42527' style='display: none; border-left: 2px solid green; border-top: 2px solid green;'><\/div>\n","protected":false},"excerpt":{"rendered":"<p>We&#8217;ve got a &#8220;proof of concept&#8221; tutorial for you today, because we got put onto an idea for something by How to Make Circular\/Curved Text with JavaScript, thanks. We wanted to extend the logic of that &#8230; ascii codes (of &hellip; <a href=\"https:\/\/www.rjmprogramming.com.au\/ITblog\/circular-text-or-emojis-primer-tutorial\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,14,37],"tags":[105,2773,208,354,385,576,652,997,1986,2700,1254,1319],"class_list":["post-42527","post","type-post","status-publish","format-standard","hentry","category-elearning","category-event-driven-programming","category-tutorials","tag-ascii","tag-charcodeat","tag-circle","tag-dom","tag-emoji","tag-html","tag-javascript","tag-programming","tag-proof-of-concept","tag-string-fromcodepoint","tag-text","tag-tutorial"],"_links":{"self":[{"href":"https:\/\/www.rjmprogramming.com.au\/ITblog\/wp-json\/wp\/v2\/posts\/42527"}],"collection":[{"href":"https:\/\/www.rjmprogramming.com.au\/ITblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rjmprogramming.com.au\/ITblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rjmprogramming.com.au\/ITblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rjmprogramming.com.au\/ITblog\/wp-json\/wp\/v2\/comments?post=42527"}],"version-history":[{"count":7,"href":"https:\/\/www.rjmprogramming.com.au\/ITblog\/wp-json\/wp\/v2\/posts\/42527\/revisions"}],"predecessor-version":[{"id":42534,"href":"https:\/\/www.rjmprogramming.com.au\/ITblog\/wp-json\/wp\/v2\/posts\/42527\/revisions\/42534"}],"wp:attachment":[{"href":"https:\/\/www.rjmprogramming.com.au\/ITblog\/wp-json\/wp\/v2\/media?parent=42527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rjmprogramming.com.au\/ITblog\/wp-json\/wp\/v2\/categories?post=42527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rjmprogramming.com.au\/ITblog\/wp-json\/wp\/v2\/tags?post=42527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}