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authorobscuren <geffobscura@gmail.com>2014-07-01 19:45:39 +0800
committerobscuren <geffobscura@gmail.com>2014-07-01 19:45:39 +0800
commit253c23240b8cec56e2bb21072291e2f7ef1a49e9 (patch)
tree64503d09f1120ef2327a8184e46d5ee8bc7090bd /ethereal/assets/ext/string.js
parent0ce9003ba77c0552c9058caa55d2fea6711ac18c (diff)
parent098f7f23ce62d3f0c60d30d325576de93795cc4b (diff)
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Merge branch 'feature/keys' of https://github.com/ethersphere/go-ethereum into ethersphere-feature/keys
Conflicts: .gitignore README.md
Diffstat (limited to 'ethereal/assets/ext/string.js')
-rw-r--r--ethereal/assets/ext/string.js58
1 files changed, 58 insertions, 0 deletions
diff --git a/ethereal/assets/ext/string.js b/ethereal/assets/ext/string.js
new file mode 100644
index 000000000..2473b5c36
--- /dev/null
+++ b/ethereal/assets/ext/string.js
@@ -0,0 +1,58 @@
+String.prototype.pad = function(l, r) {
+ if (r === undefined) {
+ r = l
+ if (!(this.substr(0, 2) == "0x" || /^\d+$/.test(this)))
+ l = 0
+ }
+ var ret = this.bin();
+ while (ret.length < l)
+ ret = "\0" + ret
+ while (ret.length < r)
+ ret = ret + "\0"
+ return ret;
+}
+
+String.prototype.unpad = function() {
+ var i = this.length;
+ while (i && this[i - 1] == "\0")
+ --i
+ return this.substr(0, i)
+}
+
+String.prototype.bin = function() {
+ if (this.substr(0, 2) == "0x") {
+ bytes = []
+ var i = 2;
+
+ // Check if it's odd - pad with a zero if so.
+ if (this.length % 2)
+ bytes.push(parseInt(this.substr(i++, 1), 16))
+
+ for (; i < this.length - 1; i += 2)
+ bytes.push(parseInt(this.substr(i, 2), 16));
+
+ return String.fromCharCode.apply(String, bytes);
+ } else if (/^\d+$/.test(this))
+ return bigInt(this.substr(0)).toHex().bin()
+
+ // Otherwise we'll return the "String" object instead of an actual string
+ return this.substr(0, this.length)
+}
+
+String.prototype.unbin = function() {
+ var i, l, o = '';
+ for(i = 0, l = this.length; i < l; i++) {
+ var n = this.charCodeAt(i).toString(16);
+ o += n.length < 2 ? '0' + n : n;
+ }
+
+ return "0x" + o;
+}
+
+String.prototype.dec = function() {
+ return bigInt(this.substr(0)).toString()
+}
+
+String.prototype.hex = function() {
+ return bigInt(this.substr(0)).toHex()
+}