dojox
Version:
Dojo eXtensions, a rollup of many useful sub-projects and varying states of maturity – from very stable and robust, to alpha and experimental. See individual projects contain README files for details.
353 lines (340 loc) • 9.76 kB
JavaScript
define([
"dojo/_base/lang",
"dojo/_base/array",
"dojox/string/tokenize",
"dojox/string/sprintf",
"../filter/htmlstrings",
"../_base"
], function(lang,array,Tokenize,Sprintf,htmlstrings,dd){
var strings = lang.getObject("filter.strings", true, dd);
/*=====
strings = {
// TODO: summary
};
=====*/
lang.mixin(strings, {
_urlquote: function(/*String*/ url, /*String?*/ safe){
if(!safe){
safe = "/";
}
return Tokenize(url, /([^\w-_.])/g, function(token){
if(safe.indexOf(token) == -1){
if(token == " "){
return "+";
}else{
var hex = token.charCodeAt(0).toString(16).toUpperCase();
while(hex.length < 2){
hex = "0" + hex;
}
return "%" + hex;
}
}
return token;
}).join("");
},
addslashes: function(value){
// summary:
// Adds slashes - useful for passing strings to JavaScript, for example.
return value.replace(/\\/g, "\\\\").replace(/"/g, '\\"').replace(/'/g, "\\'");
},
capfirst: function(value){
// summary:
// Capitalizes the first character of the value
value = "" + value;
return value.charAt(0).toUpperCase() + value.substring(1);
},
center: function(value, arg){
// summary:
// Centers the value in a field of a given width
arg = arg || value.length;
value = value + "";
var diff = arg - value.length;
if(diff % 2){
value = value + " ";
diff -= 1;
}
for(var i = 0; i < diff; i += 2){
value = " " + value + " ";
}
return value;
},
cut: function(value, arg){
// summary:
// Removes all values of arg from the given string
arg = arg + "" || "";
value = value + "";
return value.replace(new RegExp(arg, "g"), "");
},
_fix_ampersands: /&(?!(\w+|#\d+);)/g,
fix_ampersands: function(value){
// summary:
// Replaces ampersands with ``&`` entities
return value.replace(strings._fix_ampersands, "&");
},
floatformat: function(value, arg){
// summary:
// Format a number according to arg
// description:
// If called without an argument, displays a floating point
// number as 34.2 -- but only if there's a point to be displayed.
// With a positive numeric argument, it displays that many decimal places
// always.
// With a negative numeric argument, it will display that many decimal
// places -- but only if there's places to be displayed.
arg = parseInt(arg || -1, 10);
value = parseFloat(value);
var m = value - value.toFixed(0);
if(!m && arg < 0){
return value.toFixed();
}
value = value.toFixed(Math.abs(arg));
return (arg < 0) ? parseFloat(value) + "" : value;
},
iriencode: function(value){
return strings._urlquote(value, "/#%[]=:;$&()+,!");
},
linenumbers: function(value){
// summary:
// Displays text with line numbers
var df = dojox.dtl.filter;
var lines = value.split("\n");
var output = [];
var width = (lines.length + "").length;
for(var i = 0, line; i < lines.length; i++){
line = lines[i];
output.push(df.strings.ljust(i + 1, width) + ". " + dojox.dtl._base.escape(line));
}
return output.join("\n");
},
ljust: function(value, arg){
value = value + "";
arg = parseInt(arg, 10);
while(value.length < arg){
value = value + " ";
}
return value;
},
lower: function(value){
// summary:
// Converts a string into all lowercase
return (value + "").toLowerCase();
},
make_list: function(value){
// summary:
// Returns the value turned into a list. For an integer, it's a list of
// digits. For a string, it's a list of characters.
var output = [];
if(typeof value == "number"){
value = value + "";
}
if(value.charAt){
for(var i = 0; i < value.length; i++){
output.push(value.charAt(i));
}
return output;
}
if(typeof value == "object"){
for(var key in value){
output.push(value[key]);
}
return output;
}
return [];
},
rjust: function(value, arg){
value = value + "";
arg = parseInt(arg, 10);
while(value.length < arg){
value = " " + value;
}
return value;
},
slugify: function(value){
// summary:
// Converts to lowercase, removes
// non-alpha chars and converts spaces to hyphens
value = value.replace(/[^\w\s-]/g, "").toLowerCase();
return value.replace(/[\-\s]+/g, "-");
},
_strings: {},
stringformat: function(value, arg){
// summary:
// Formats the variable according to the argument, a string formatting specifier.
// This specifier uses Python string formatting syntax, with the exception that
// the leading "%" is dropped.
arg = "" + arg;
var strs = strings._strings;
if(!strs[arg]){
strs[arg] = new Sprintf.Formatter("%" + arg);
}
return strs[arg].format(value);
},
title: function(value){
// summary:
// Converts a string into titlecase
var last, title = "";
for(var i = 0, current; i < value.length; i++){
current = value.charAt(i);
if(last == " " || last == "\n" || last == "\t" || !last){
title += current.toUpperCase();
}else{
title += current.toLowerCase();
}
last = current;
}
return title;
},
_truncatewords: /[ \n\r\t]/,
truncatewords: function(value, arg){
// summary:
// Truncates a string after a certain number of words
// arg: Integer
// Number of words to truncate after
arg = parseInt(arg, 10);
if(!arg){
return value;
}
for(var i = 0, j = value.length, count = 0, current, last; i < value.length; i++){
current = value.charAt(i);
if(strings._truncatewords.test(last)){
if(!strings._truncatewords.test(current)){
++count;
if(count == arg){
return value.substring(0, j + 1) + ' ...';
}
}
}else if(!strings._truncatewords.test(current)){
j = i;
}
last = current;
}
return value;
},
_truncate_words: /(&.*?;|<.*?>|(\w[\w\-]*))/g,
_truncate_tag: /<(\/)?([^ ]+?)(?: (\/)| .*?)?>/,
_truncate_singlets: { br: true, col: true, link: true, base: true, img: true, param: true, area: true, hr: true, input: true },
truncatewords_html: function(value, arg){
arg = parseInt(arg, 10);
if(arg <= 0){
return "";
}
var words = 0;
var open = [];
var output = Tokenize(value, strings._truncate_words, function(all, word){
if(word){
// It's an actual non-HTML word
++words;
if(words < arg){
return word;
}else if(words == arg){
return word + " ...";
}
}
// Check for tag
var tag = all.match(strings._truncate_tag);
if(!tag || words >= arg){
// Don't worry about non tags or tags after our truncate point
return;
}
var closing = tag[1];
var tagname = tag[2].toLowerCase();
var selfclosing = tag[3];
if(closing || strings._truncate_singlets[tagname]){
}else if(closing){
var i = array.indexOf(open, tagname);
if(i != -1){
open = open.slice(i + 1);
}
}else{
open.unshift(tagname);
}
return all;
}).join("");
output = output.replace(/\s+$/g, "");
for(var i = 0, tag; tag = open[i]; i++){
output += "</" + tag + ">";
}
return output;
},
upper: function(value){
return value.toUpperCase();
},
urlencode: function(value){
return strings._urlquote(value);
},
_urlize: /^((?:[(>]|<)*)(.*?)((?:[.,)>\n]|>)*)$/,
_urlize2: /^\S+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9._-]+$/,
urlize: function(value){
return strings.urlizetrunc(value);
},
urlizetrunc: function(value, arg){
arg = parseInt(arg);
return Tokenize(value, /(\S+)/g, function(word){
var matches = strings._urlize.exec(word);
if(!matches){
return word;
}
var lead = matches[1];
var middle = matches[2];
var trail = matches[3];
var startsWww = middle.indexOf("www.") == 0;
var hasAt = middle.indexOf("@") != -1;
var hasColon = middle.indexOf(":") != -1;
var startsHttp = middle.indexOf("http://") == 0;
var startsHttps = middle.indexOf("https://") == 0;
var firstAlpha = /[a-zA-Z0-9]/.test(middle.charAt(0));
var last4 = middle.substring(middle.length - 4);
var trimmed = middle;
if(arg > 3){
trimmed = trimmed.substring(0, arg - 3) + "...";
}
if(startsWww || (!hasAt && !startsHttp && middle.length && firstAlpha && (last4 == ".org" || last4 == ".net" || last4 == ".com"))){
return '<a href="http://' + middle + '" rel="nofollow">' + trimmed + '</a>';
}else if(startsHttp || startsHttps){
return '<a href="' + middle + '" rel="nofollow">' + trimmed + '</a>';
}else if(hasAt && !startsWww && !hasColon && strings._urlize2.test(middle)){
return '<a href="mailto:' + middle + '">' + middle + '</a>';
}
return word;
}).join("");
},
wordcount: function(value){
value = lang.trim(value);
if(!value){ return 0; }
return value.split(/\s+/g).length;
},
wordwrap: function(value, arg){
arg = parseInt(arg);
// summary:
// Wraps words at specified line length
var output = [];
var parts = value.split(/\s+/g);
if(parts.length){
var word = parts.shift();
output.push(word);
var pos = word.length - word.lastIndexOf("\n") - 1;
for(var i = 0; i < parts.length; i++){
word = parts[i];
if(word.indexOf("\n") != -1){
var lines = word.split(/\n/g);
}else{
var lines = [word];
}
pos += lines[0].length + 1;
if(arg && pos > arg){
output.push("\n");
pos = lines[lines.length - 1].length;
}else{
output.push(" ");
if(lines.length > 1){
pos = lines[lines.length - 1].length;
}
}
output.push(word);
}
}
return output.join("");
}
});
return strings;
});