egroupware/phpgwapi/js/dynapi/ext/functions.string.js

116 lines
2.0 KiB
JavaScript
Raw Normal View History

/*
DynAPI Distribution
dynapi.functions.String extension
*/
var f = dynapi.functions;
f.String = {}; // used by dynapi.library
// String Functions --------------------------------
f.sprintf = function(t){
var ar = arguments;
var i=1,inx = t.indexOf("%s");
while(inx>=0){
t = t.substr(0, inx) + ar[i++] + t.substr(inx+2);
inx = t.indexOf("%s");
}
return t;
};
f.strRepeat = function(s,n) {
if(!s) return '';
var i,a=[];
for(i=1;i<=n;i++){
a[a.length]=s;
}
return a.join('');
};
f.strReverse = function(s) {
if(!s) return '';
var a=(s+'').split('');
a.reverse();
return a.join('');
};
f.strStuff = function(s,v,index) {
if(!s) return '';
if (index==null) s=s+v+'';
else {
var t1=t2=s+'';
s=t1.substr(0,index)+v+t2.substr(index,t2.length-index);
}
return s;
};
f.trim = function(s,dir){
if(!s) return;
else s+=''; // make sure s is a string
dir=(dir)? dir:'<>';
if(dir=='<'||dir=='<>') s=s.replace(/^(\s+)/g,'');
if(dir=='>'||dir=='<>') s=s.replace(/(\s+)$/g,'');
return s;
};
f.limitString = function (s,max)
{
if (!s) return s;
else s+='';
// Do not process HTML tags \\
var tag = new RegExp(/[<][^>]*[>]/g);
var special = new RegExp(/[&][^;]*;/g);
var m, count=0;
var tags = new Array();
var specials = new Array();
var r_s = s.replace(/[<][^>]*[>]/g,'\xFE').replace(/[&][^;]*;/g,'\xFF');
while (m = tag.exec(s))
{
tags[tags.length] = m[0];
max++;
}
while (m = special.exec(s))
{
specials[specials.length] = m[0];
max += 2;
}
var i;
var count = 0;
var r_final = '';
for (i=0; i<r_s.length;i++)
{
if (r_s[i] == '\xFF')
{
r_final += r_s.charAt(i);
}
else if (r_s[i] == '\xFE')
{
r_final += r_s.charAt(i);
count++;
}
else if (count <= max)
{
r_final += r_s.charAt(i);
count++;
}
}
if (count > max)
{
r_final += '...';
}
for (i=0; i<tags.length; i++)
{
r_final = r_final.replace(/\xFE/,tags[i]);
}
for (i=0; i<specials.length; i++)
{
r_final = r_final.replace(/\xFF/,specials[i]);
}
return r_final;
}