On my codeigniter project I am making a js markdown script for my textarea
I have some jquery that can find numbers if wrapped like [1]
PHP Code:
var matches = a.match(/(^|\n)\s*\[\d+\]:/g);
But when I want to look for numbers like number with full stop next to it
It can't find any. How can I make sure with the match above that it can find numbers with [1] and 1.
Code:
function findlistnumber(){
var number = 1;
var textarea = document.getElementById('message');
var a = textarea.value;
if(a.indexOf('1.') > -1){
//Find lines with links
var matches = a.match(/(^|\n)\s*\[\d+\]:/g);
//Find corresponding numbers
var usedNumbers = matches.map(function(match){
return parseInt(match.match(/\d+/)[0]); }
);
//Find first unused number
var number = 1;
while(true){
if(usedNumbers.indexOf(number) === -1){
//Found unused number
return number;
}
number++;
}
}
return number;
}
Full JS
Code:
$(document).ready(function() {
var textarea_id = $('.panel-newthread .panel-body textarea').attr('id');
//alert(textarea_id);
$('#bold-button').on('click', function(e) {
markdown_syntax(this.id, "**", "**", 'strong text');
});
$('#italic-button').on('click', function(e) {
markdown_syntax(this.id, "*", "*", "emphasized text");
});
$('#quote-button').on('click', function(e) {
markdown_syntax(this.id, "> ", "", "Blockquote");
});
$('#code-button').on('click', function(e) {
markdown_syntax(this.id, "```", "```", "enter code here");
});
$('#h1-button').on('click', function(e) {
markdown_syntax(this.id, "#", "", "");
});
$('#h2-button').on('click', function(e) {
markdown_syntax(this.id, "##", "", "", "");
});
$('#h3-button').on('click', function(e) {
markdown_syntax(this.id, "###", "");
});
$('#h4-button').on('click', function(e) {
markdown_syntax(this.id, "####", "", "");
});
$('#h5-button').on('click', function(e) {
markdown_syntax(this.id, "#####", "", "");
});
$('#h6-button').on('click', function(e) {
markdown_syntax(this.id, "######", "", "");
});
$('#hr-button').on('click', function(e) {
markdown_syntax(this.id, "---", "", "");
});
$('#olist-button').on('click', function(e) {
if (findlistnumber()) {
markdown_syntax(this.id, ' ' + findlistnumber() + ".", "", "List item");
} else {
markdown_syntax(this.id, " 1.", "", " List item");
}
});
$('#ulist-button').on('click', function(e) {
markdown_syntax(this.id, " - ", "", "List item");
});
function markdown_syntax(button_id, syntax_open, syntax_close = '', empty_msg) {
var textarea = $('#' + textarea_id);
var len = textarea.val().length;
var start = textarea[0].selectionStart;
var end = textarea[0].selectionEnd;
var selectedText = textarea.val().substring(start, end);
if (selectedText.length > 0) {
if (button_id === 'code-button') {
replacement = syntax_open + '\n' + selectedText + '\n' + syntax_close;
} else {
replacement = syntax_open + selectedText + syntax_close;
}
} else {
if (button_id === 'code-button') {
replacement = syntax_open + '\n' + empty_msg + '\n' + syntax_close;
} else {
replacement = syntax_open + empty_msg + syntax_close;
}
}
textarea.val(textarea.val().substring(0, start) + replacement + textarea.val().substring(end, len));
}
function findlistnumber(){
var number = 1;
var textarea = document.getElementById('message');
var a = textarea.value;
if(a.indexOf('1.') > -1){
//Find lines with links
var matches = a.match(/(^|\n)\s*\[\d+\]:/g);
//Find corresponding numbers
var usedNumbers = matches.map(function(match){
return parseInt(match.match(/\d+/)[0]); }
);
//Find first unused number
var number = 1;
while(true){
if(usedNumbers.indexOf(number) === -1){
//Found unused number
return number;
}
number++;
}
}
return number;
}
});
There's only one rule - please don't tell anyone to go and read the manual. Sometimes the manual just SUCKS!
