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deepClone() & template() #4

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beae965
created deepClone
bodqhrohro Aug 8, 2015
269e135
created template()
bodqhrohro Aug 10, 2015
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9 changes: 9 additions & 0 deletions deepClone.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
function deepClone(src) {
var copy = Array.isArray(src) ? [] : {};
for (var item in src) {
copy[item] = typeof src[item] == 'object' ?
deepClone(src[item]) :
src[item];
}
return copy;
}
27 changes: 27 additions & 0 deletions index.htm
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@@ -0,0 +1,27 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<script src="deepClone.js"></script>
<script src="template.js"></script>
<script>
console.log(deepClone({'a': 1, 'b': 'tist', 'c': {'a': 2, 'b': [1,2,3,1]}}));
console.log(template(
'aaa[[each a in b]]bkab[[a]]brynb[[/each]]aa',
{
b: [
'a',
'1',
3,
{}
]
}
));
console.log(template('a[[repeat 5]]b[[/repeat]]c'));
</script>
</head>
<body>

</body>
</html>
69 changes: 69 additions & 0 deletions template.js
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function template(str, vars) {
if (!vars) {
vars = {};
}

var rawCommand = function(str) {
return str.trim();
};

var tagPos = {}, argv, substrs = {}, rep;

while ((tagPos.bb = str.search(/\[\[(.*?)\]\]/)) != -1) {
rep = '';
tagPos.be = str.indexOf(']]', tagPos.bb);
substrs.btag = str.substring(tagPos.bb+2, tagPos.be);

var argv = substrs.btag.split(' ');
argv = argv.filter(function(item) {
return item != '';
});

tagPos.eb = str.indexOf('[[/'+argv[0]+']]', tagPos.be+2);
if (tagPos.eb > -1) {
tagPos.ee = str.indexOf(']]', tagPos.eb);
}
substrs.inner = str.substring(tagPos.be+2, tagPos.eb);
//substrs.etag = str.substring(tagPos.eb+2, tagPos.ee);

if (tagPos.eb > -1) {
switch (argv[0]) {
case 'each':
if (argv.length == 4 && argv[2] == 'in') {
var extVars = deepClone(vars);
for (var key in vars[argv[3]]) {
extVars[argv[1]] = vars[argv[3]][key];
rep += template(substrs.inner, extVars);
}
break;
} // else default
case 'repeat':
if (argv.length == 2 && parseInt(argv[1]) != NaN) {
for (var i=0; i<parseInt(argv[1]); i++) {
rep += substrs.inner;
}
break;
}
default:
rep = rawCommand(substr.inner);
}
} else if (vars[argv[0]] === undefined) {
rep = rawCommand(argv[0]);
} else {
rep = vars[argv[0]];
}

str = str.substring(0, tagPos.bb) +
rep +
str.substring(
tagPos.eb > -1 ?
tagPos.ee+2 :
tagPos.be+2
);

tagPos.eb = null;
tagPos.ee = null;
}

return str;
}