55 lines
1.2 KiB
JavaScript
55 lines
1.2 KiB
JavaScript
(function() {
|
|
|
|
var BREAK = "<wbr>​";
|
|
|
|
/**
|
|
A class for intelligently breaking up strings at logical points.
|
|
**/
|
|
var BreakString = function(string) {
|
|
this.string = string;
|
|
};
|
|
|
|
BreakString.prototype.break = function(hint) {
|
|
var hintPos = [],
|
|
str = this.string;
|
|
|
|
if(hint) {
|
|
hint = hint.toLowerCase().split(/\s+/).reverse();
|
|
var current = 0;
|
|
while(hint.length > 0) {
|
|
var word = hint.pop();
|
|
if(word !== str.substr(current, word.length).toLowerCase()) {
|
|
break;
|
|
}
|
|
current += word.length;
|
|
hintPos.push(current);
|
|
}
|
|
}
|
|
|
|
var rval = [],
|
|
prev = str[0];
|
|
rval.push(prev);
|
|
for (var i=1;i<str.length;i++) {
|
|
var cur = str[i];
|
|
if(prev.match(/[^0-9]/) && cur.match(/[0-9]/)){
|
|
rval.push(BREAK);
|
|
} else if(i>1 && prev.match(/[A-Z]/) && cur.match(/[a-z]/)){
|
|
rval.pop();
|
|
rval.push(BREAK);
|
|
rval.push(prev);
|
|
} else if(prev.match(/[^A-Za-z0-9]/) && cur.match(/[a-zA-Z0-9]/)){
|
|
rval.push(BREAK);
|
|
} else if(hintPos.indexOf(i) > -1) {
|
|
rval.push(BREAK);
|
|
}
|
|
|
|
rval.push(cur);
|
|
prev = cur;
|
|
}
|
|
return rval.join("");
|
|
};
|
|
|
|
this.BreakString = BreakString;
|
|
|
|
}).call(this);
|