Tools for blogger creation

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Introduction

It is funny that I have an article on this blog talking about the tools I used to write this blog. 😛 Anyway, in case I forgot the tools or tricks I used, I write it down in advance.

Tools

Beautiful code formatting

Beautiful free image

Beautiful table

Anchor title

How to add an anchor link

How to avoid the floating header covering the anchor link

By default, the anchor link will be put at the first row of the page after you jump to it. There is a navigation bar on top of this page which will block the first row of the body of the html.

The easiest way to avoid this issue is adding an add-on like this:

From the layout setting, you can insert a new HTML/JavaScript tool.

<style type='text/css'>

body, html {
  scroll-padding-top: 70px; /* adjust the pixel amount here for your top navigation bar height */
}

</style>

Page selection

Here is a section for page selection tool creation.

Please go to the layout setting and add a HTML/JavaScript tool.

 

<style type='text/css'>

.showpageArea a {
text-decoration:underline;
}
.showpageNum a {
border:1px solid #aeaeae;
margin:0 3px;
padding:3px 7px;
text-decoration:none;
}
.showpageNum a:hover {
background-color:#0a8be5;
border:1px solid #000000;

}
.showpagePoint {
-moz-background-clip:border;
-moz-background-inline-policy:continuous;
-moz-background-origin:padding;
background:#aeaeae none repeat scroll 0 0;
border:1px solid #aeaeae;
color:#333333;
margin:0 3px;
padding:3px 7px;
text-decoration:none;
}
.showpageOf {
margin:0 3px 0 0;
padding:3px 7px;
text-decoration:none;
}
.showpage a {
border:1px solid #aeaeae;
padding:3px 7px;
text-decoration:none;
}
.showpage a:hover {
text-decoration:none;
}
.showpageNum a:link, .showpage a:link {
color:#333333;
text-decoration:none;
}

</style>


<script type='text/javascript'>

var home_page_url = location.href;

var pageCount=5;
var displayPageNum=3;
var upPageWord ='Previous';
var downPageWord ='Next';

function showpageCount(json) {
var thisUrl = home_page_url;
var htmlMap = new Array();
var thisNum = 1;
var postNum=1;
var itemCount = 0;
var fFlag = 0;
var eFlag = 0;
var html= '';
var upPageHtml ='';
var downPageHtml ='';

for(var i=0, post; post = json.feed.entry[i]; i++) {

var timestamp1 = post.published.$t.substring(0,19)+post.published.$t.substring(23,29);
timestamp = encodeURIComponent(timestamp1);

var title = post.title.$t;

if(title!=''){
if(itemCount==0 || (itemCount % pageCount ==(pageCount-1))){
if(thisUrl.indexOf(timestamp)!=-1 ){
  thisNum = postNum;
}

if(title!='') postNum++;
htmlMap[htmlMap.length] = '/search?updated-max='+timestamp+'&max-results='+pageCount;
}
}
itemCount++;

}

for(var p =0;p< htmlMap.length;p++){
if(p>=(thisNum-displayPageNum-1) && p<(thisNum+displayPageNum)){
if(fFlag ==0 && p == thisNum-2){
if(thisNum==2){
 upPageHtml = '<span class="showpage"><a href="/">'+ upPageWord +'</a></span>';
}else{
 upPageHtml = '<span class="showpage"><a href="'+htmlMap[p]+'">'+ upPageWord +'</a></span>';
}

fFlag++;
}

if(p==(thisNum-1)){
html += '<span class="showpagePoint">'+thisNum+'</span>';
}else{
if(p==0){
  html += '<span class="showpageNum"><a href="/">1</a></span>';

}else{
 html += '<span class="showpageNum"><a href="'+htmlMap[p]+'">'+ (p+1) +'</a></span>';
}
}

if(eFlag ==0 && p == thisNum){
downPageHtml = '<span class="showpage"> <a href="'+htmlMap[p]+'">'+ downPageWord +'</a></span>';
eFlag++;
}
}
}

if(thisNum>1){
html = ''+upPageHtml+' '+html +' ';
}

html = '<div class="showpageArea"><span  class="showpageOf"> Pages ('+(postNum-1)+')</span>'+html;

if(thisNum<(postNum-1)){
html += downPageHtml;
}

if(postNum==1) postNum++;
html += '</div>';

var pageArea = document.getElementsByName("pageArea");
var blogPager = document.getElementById("blog-pager");

if(postNum <= 2){
html ='';
}

for(var p =0;p< pageArea.length;p++){
pageArea[p].innerHTML = html;
}

if(pageArea&&pageArea.length>0){
html ='';
}

if(blogPager){
blogPager.innerHTML = html;
}

}

function showpageCount2(json) {

var thisUrl = home_page_url;
var htmlMap = new Array();
var isLablePage = thisUrl.indexOf("/search/label/")!=-1;
var thisLable = isLablePage ? thisUrl.substr(thisUrl.indexOf("/search/label/")+14,thisUrl.length) : "";
thisLable = thisLable.indexOf("?")!=-1 ? thisLable.substr(0,thisLable.indexOf("?")) : thisLable;
var thisNum = 1;
var postNum=1;
var itemCount = 0;
var fFlag = 0;
var eFlag = 0;
var html= '';
var upPageHtml ='';
var downPageHtml ='';

var labelHtml = '<span class="showpageNum"><a href="/search/label/'+thisLable+'?&max-results='+pageCount+'">';
var thisUrl = home_page_url;

for(var i=0, post; post = json.feed.entry[i]; i++) {

var timestamp1 = post.published.$t.substring(0,19)+post.published.$t.substring(23,29);
timestamp = encodeURIComponent(timestamp1);

var title = post.title.$t;

if(title!=''){
if(itemCount==0 || (itemCount % pageCount ==(pageCount-1))){
if(thisUrl.indexOf(timestamp)!=-1 ){
 thisNum = postNum;
}

if(title!='') postNum++;
htmlMap[htmlMap.length] = '/search/label/'+thisLable+'?updated-max='+timestamp+'&max-results='+pageCount;

}
}
itemCount++;
}

for(var p =0;p< htmlMap.length;p++){
if(p>=(thisNum-displayPageNum-1) && p<(thisNum+displayPageNum)){
if(fFlag ==0 && p == thisNum-2){
if(thisNum==2){
 upPageHtml = labelHtml + upPageWord +'</a></span>';
}else{
 upPageHtml = '<span class="showpage"><a href="'+htmlMap[p]+'">'+ upPageWord +'</a></span>';
}

fFlag++;
}

if(p==(thisNum-1)){
html += '<span class="showpagePoint">'+thisNum+'</span>';
}else{
if(p==0){
 html = labelHtml+'1</a></span>';
}else{
 html += '<span class="showpageNum"><a href="'+htmlMap[p]+'">'+ (p+1) +'</a></span>';
}
}

if(eFlag ==0 && p == thisNum){
downPageHtml = '<span class="showpage"> <a href="'+htmlMap[p]+'">'+ downPageWord +'</a></span>';
eFlag++;
}
}
}

if(thisNum>1){
if(!isLablePage){
html = ''+upPageHtml+' '+html +' ';
}else{
html = ''+upPageHtml+' '+html +' ';
}
}

html = '<div class="showpageArea"><span  class="showpageOf"> Pages ('+(postNum-1)+')</span>'+html;

if(thisNum<(postNum-1)){
html += downPageHtml;
}

if(postNum==1) postNum++;
html += '</div>';

var pageArea = document.getElementsByName("pageArea");
var blogPager = document.getElementById("blog-pager");

if(postNum <= 2){
html ='';
}

for(var p =0;p< pageArea.length;p++){
pageArea[p].innerHTML = html;
}

if(pageArea&&pageArea.length>0){
html ='';
}

if(blogPager){
blogPager.innerHTML = html;
}

}

</script>
<script type='text/javascript'>

var thisUrl = home_page_url;
if (thisUrl.indexOf("/search/label/")!=-1){
if (thisUrl.indexOf("?updated-max")!=-1){
var lblname1 = thisUrl.substring(thisUrl.indexOf("/search/label/")+14,thisUrl.indexOf("?updated-max"));
}else{
var lblname1 = thisUrl.substring(thisUrl.indexOf("/search/label/")+14,thisUrl.indexOf("?&max"));
}
}

var home_page = "/";
if (thisUrl.indexOf("?q=")==-1){
if (thisUrl.indexOf("/search/label/")==-1){
document.write('<script src="'+home_page+'feeds/posts/summary?alt=json-in-script&callback=showpageCount&max-results=99999" ><\/script>')
}else{document.write('<script src="'+home_page+'feeds/posts/full/-/'+lblname1+'?alt=json-in-script&callback=showpageCount2&max-results=99999" ><\/script>')
}
}
</script>

Math equation

Use MathJax to embedded math equation into the html page. Import the following js library into your page, reference:

<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>

I put it inside the template:


 

Then inside the page you can, live example:

When \(a \ne 0\), there are two solutions to \(ax^2 + bx + c = 0\) and they are
$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$

you will get:

When \(a \ne 0\), there are two solutions to \(ax^2 + bx + c = 0\) and they are
$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$

Beautiful example:

$$
\begin{aligned}
\sqrt{37} & = \sqrt{\frac{73^2-1}{12^2}} \\
 & = \sqrt{\frac{73^2}{12^2}\cdot\frac{73^2-1}{73^2}} \\
 & = \sqrt{\frac{73^2}{12^2}}\sqrt{\frac{73^2-1}{73^2}} \\
 & = \frac{73}{12}\sqrt{1 - \frac{1}{73^2}} \\
 & \approx \frac{73}{12}\left(1 - \frac{1}{2\cdot73^2}\right)
\end{aligned}
$$

Html embed PlantUML

javascript you needed:

  • rawdeflate.js
  • jquery.js
  • jquery_puml.js

You can find the source code and example from here. 

You will need to add extra tools on the blogger:

In the html you will need to embed the puml script in the img tag:

<img class="img_center" uml="
Bob->Alice : foo
Bob<--Alice : foo
">

You have to replace the double quote with &quot; in the uml tag to get through the html parser.

The javascript will employ the jquery and get the contents inside the uml key word, send it to the http://www.plantuml.com/, get the image and finally update the img tag with the new image location.

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