fix typos

ethcore/src/blockchain/block_info.rs

@@ -38,7 +38,7 @@ pub enum BlockLocation {
 	/// It's not a part of the canon chain.
 	Branch,
 	/// It's part of the fork which should become canon chain,
-	/// because it's total difficulty is higher than current
+	/// because its total difficulty is higher than current
 	/// canon chain difficulty.
 	BranchBecomingCanonChain(BranchBecomingCanonChainData),
 }

ethcore/src/client/client.rs

@@ -949,7 +949,7 @@ impl MiningBlockChainClient for Client {
 			self.trie_factory.clone(),
 			false,	// TODO: this will need to be parameterised once we want to do immediate mining insertion.
 			self.state_db.lock().boxed_clone(),
-			&self.chain.block_header(&h).expect("h is best block hash: so it's header must exist: qed"),
+			&self.chain.block_header(&h).expect("h is best block hash: so its header must exist: qed"),
 			self.build_last_hashes(h.clone()),
 			author,
 			gas_range_target,

ethcore/src/miner/transaction_queue.rs

@@ -122,7 +122,7 @@ impl Ord for TransactionOrigin {
 }
 
 #[derive(Clone, Debug)]
-/// Light structure used to identify transaction and it's order
+/// Light structure used to identify transaction and its order
 struct TransactionOrder {
 	/// Primary ordering factory. Difference between transaction nonce and expected nonce in state
 	/// (e.g. Tx(nonce:5), State(nonce:0) -> height: 5)

ipc/codegen/src/serialization.rs

@@ -50,7 +50,7 @@ pub fn expand_serialization_implementation(
 	let impl_item = match serialize_item(cx, &builder, &item) {
 		Ok(item) => item,
 		Err(Error) => {
-			// An error occured, but it should have been reported already.
+			// An error occurred, but it should have been reported already.
 			return;
 		},
 	};

ipc/nano/src/lib.rs

@@ -107,7 +107,7 @@ pub fn init_client<S>(socket_addr: &str) -> Result<GuardedSocket<S>, SocketError
 	})
 }
 
-/// Error occured while establising socket or endpoint
+/// Error occurred while establising socket or endpoint
 #[derive(Debug)]
 pub enum SocketError {
 	/// Error establising duplex (paired) socket and/or endpoint

parity/cli.rs

@@ -36,7 +36,7 @@ Operating Options:
   --mode MODE              Set the operating mode. MODE can be one of:
                            active - Parity continuously syncs the chain.
                            passive - Parity syncs initially, then sleeps and
-                           wakes regularly to resync. 
+                           wakes regularly to resync.
                            dark - Parity syncs only when an external interface
                            is active. [default: active].
   --mode-timeout SECS      Specify the number of seconds before inactivity
@@ -141,11 +141,11 @@ Sealing/Mining Options:
                            own - reseal only on a new local transaction;
                            ext - reseal only on a new external transaction;
                            all - reseal on all new transactions [default: own].
-  --reseal-min-period MS   Specify the minimum time between reseals from 
+  --reseal-min-period MS   Specify the minimum time between reseals from
                            incoming transactions. MS is time measured in
                            milliseconds [default: 2000].
   --work-queue-size ITEMS  Specify the number of historical work packages
-                           which are kept cached lest a solution is found for 
+                           which are kept cached lest a solution is found for
                            them later. High values take more memory but result
                            in fewer unusable solutions [default: 20].
   --tx-gas-limit GAS       Apply a limit of GAS as the maximum amount of gas
@@ -196,7 +196,7 @@ Footprint Options:
                            fast - maintain journal overlay. Fast but 50MB used.
                            auto - use the method most recently synced or
                            default to fast if none synced [default: auto].
-  --cache-pref-size BYTES  Specify the prefered size of the blockchain cache in
+  --cache-pref-size BYTES  Specify the preferred size of the blockchain cache in
                            bytes [default: 16384].
   --cache-max-size BYTES   Specify the maximum size of the blockchain cache in
                            bytes [default: 262144].

rpc/src/v1/impls/mod.rs

@@ -158,7 +158,7 @@ fn transaction_error(error: EthcoreError) -> Error {
 				"Transaction fee is too low. There is another transaction with same nonce in the queue. Try increasing the fee or incrementing the nonce.".into()
 			},
 			LimitReached => {
-				"There is too many transactions in the queue. Your transaction was dropped due to limit. Try increasing the fee.".into()
+				"There are too many transactions in the queue. Your transaction was dropped due to limit. Try increasing the fee.".into()
 			},
 			InsufficientGasPrice { minimal, got } => {
 				format!("Transaction fee is too low. It does not satisfy your node's minimal fee (minimal: {}, got: {}). Try increasing the fee.", minimal, got)

rpc/src/v1/traits/eth.rs

@@ -83,7 +83,7 @@ pub trait Eth: Sized + Send + Sync + 'static {
 	/// Estimate gas needed for execution of given contract.
 	fn estimate_gas(&self, _: Params) -> Result<Value, Error>;
 
-	/// Get transaction by it's hash.
+	/// Get transaction by its hash.
 	fn transaction_by_hash(&self, _: Params) -> Result<Value, Error>;
 
 	/// Returns transaction at given block hash and index.

signer/src/ws_server/mod.rs

@@ -116,7 +116,7 @@ impl Server {
 						io
 					)),
 					Err(any_error) => die(format!(
-						"Signer: Unknown error occured when starting Signer. Details: {:?}",
+						"Signer: Unknown error occurred when starting Signer. Details: {:?}",
 						any_error
 					)),
 					Ok(server) => server,

sync/src/chain.rs

@@ -689,7 +689,7 @@ impl ChainSync {
 		self.state = SyncState::Waiting;
 	}
 
-	/// Find something to do for a peer. Called for a new peer or when a peer is done with it's task.
+	/// Find something to do for a peer. Called for a new peer or when a peer is done with its task.
 	fn sync_peer(&mut self, io: &mut SyncIo, peer_id: PeerId, force: bool) {
 		if !self.active_peers.contains(&peer_id) {
 			trace!(target: "sync", "Skipping deactivated peer");

util/src/rlp/untrusted_rlp.rs

@@ -201,7 +201,7 @@ impl<'a, 'view> View<'a, 'view> for UntrustedRlp<'a> where 'a: 'view {
 			return Err(DecoderError::RlpExpectedToBeList);
 		}
 
-		// move to cached position if it's index is less or equal to
+		// move to cached position if its index is less or equal to
 		// current search index, otherwise move to beginning of list
 		let c = self.offset_cache.get();
 		let (mut bytes, to_skip) = match c.index <= index {
@@ -334,9 +334,9 @@ impl<'a> BasicDecoder<'a> {
 	/// Return first item info.
 	fn payload_info(bytes: &[u8]) -> Result<PayloadInfo, DecoderError> {
 		let item = try!(PayloadInfo::from(bytes));
-		match item.header_len.checked_add(item.value_len) { 
-			Some(x) if x <= bytes.len() => Ok(item), 
-			_ => Err(DecoderError::RlpIsTooShort), 
+		match item.header_len.checked_add(item.value_len) {
+			Some(x) if x <= bytes.len() => Ok(item),
+			_ => Err(DecoderError::RlpIsTooShort),
 		}
 	}
 }

util/src/trie/triedb.rs

@@ -84,7 +84,7 @@ impl<'db> TrieDB<'db> {
 		ret
 	}
 
-	/// Convert a vector of hashes to a hashmap of hash to occurances.
+	/// Convert a vector of hashes to a hashmap of hash to occurrences.
 	pub fn to_map(hashes: Vec<H256>) -> HashMap<H256, u32> {
 		let mut r: HashMap<H256, u32> = HashMap::new();
 		for h in hashes.into_iter() {
@@ -93,7 +93,7 @@ impl<'db> TrieDB<'db> {
 		r
 	}
 
-	/// Determine occurances of items in the backing database which are not related to this
+	/// Determine occurrences of items in the backing database which are not related to this
 	/// trie.
 	pub fn db_items_remaining(&self) -> HashMap<H256, i32> {
 		let mut ret = self.db.keys();

util/src/triehash.rs

@@ -255,7 +255,7 @@ fn hash256rlp(input: &[(Vec<u8>, Vec<u8>)], pre_len: usize, stream: &mut RlpStre
 		begin += len;
 	}
 
-	// if fist key len is equal prefix, append it's value
+	// if fist key len is equal prefix, append its value
 	match pre_len == key.len() {
 		true => { stream.append(&value); },
 		false => { stream.append_empty_data(); }