diff --git a/data/snippets/c.snippets b/data/snippets/c.snippets
index b5030007fb874e2f1b801ad92b0b1b1a0de1f72c..8492933129a626429b43fe6be109e0348aca2398 100644
--- a/data/snippets/c.snippets
+++ b/data/snippets/c.snippets
@@ -100,7 +100,7 @@ snippet eprintf
 snippet scanf
 - scope c, chdr
 - desc scanf(…)
-	scanf("${1:%d}", ${2:variable});$0
+	scanf("${1:%d}", ${2:&variable});$0
 snippet include
 - scope c, chdr
 - desc Include a file relative to the file or configured include paths
@@ -119,4 +119,4 @@ snippet comment
 - scope c, chdr
 	/*
 	 * $0
-	 */
+	 */
\ No newline at end of file
diff --git a/data/snippets/gobject.snippets b/data/snippets/gobject.snippets
index 853c13bbaaf9a2d30998c17dcb9e1f53aca97e28..7f641ca67c75705f2cc48f6fd4af6f5b83ea2448 100644
--- a/data/snippets/gobject.snippets
+++ b/data/snippets/gobject.snippets
@@ -103,6 +103,31 @@ snippet gobject
 	$1 *${$1|functify}_new (void);
 	$0
 	G_END_DECLS
+- scope js
+- desc Create GObject
+	var $1 = GObject.registerClass(
+	class ${1:ClassName} extends ${2:GObject.Object} {
+		_init(${3}) {
+			super._init();
+			$0
+		}
+	});
+- scope python
+- desc Create GObject
+	class ${1:ClassName}(${2:GObject.Object}):
+
+		def __init__(self${3:,}):
+			$2.__init__(self)
+
+	$0
+- scope python3
+- desc Create GObject
+	class ${1:ClassName}(${2:GObject.Object}):
+
+		def __init__(self${3:,}):
+			super().__init__()
+
+	$0
 snippet gobject_final
 - scope c
 - desc Create GObject for a non-derivable class
@@ -406,6 +431,14 @@ snippet gproperty
 		             ${$2|space}   G_PARAM_STATIC_STRINGS));
 	g_object_class_install_property (object_class, PROP_$1,
 	                                 properties [PROP_$1]);
+- scope js
+- desc Add GObject property
+	${1:foo}: GObject.ParamSpec.${2:int}('$1',
+		'${3:$1|capitalize}', '${4:Property description}',
+		$0),
+- scope python, python3
+- desc Add GObject property
+	${1:foo} = GObject.Property(type=${2:int}, default=${3:0})$0
 snippet gsignal
 - scope c
 - desc Add GObject signal
@@ -419,6 +452,12 @@ snippet gsignal
 		              ${6:g_cclosure_marshal_generic},
 		              ${7:G_TYPE_NONE},
 		              ${8:0});
+- scope js
+- desc Add GObject signal
+	${1:signal}: {$0},
+- scope python, python3
+- desc Add GObject signal
+	"${1:signal}": (GObject.SignalFlags.${2:RUN_FIRST}, ${3:None}, (${4:int,}))$0
 snippet async
 - scope c
 - desc Create the async function for an async/finish pair
@@ -511,4 +550,4 @@ snippet fail
 snippet vfail
 - desc Snippet for g_return_val_if_fail()
 - scope c, chdr
-	g_return_val_if_fail (${1:`$filename|stripsuffix|functify|namespace|upper`_IS_`$filename|stripsuffix|class|functify|upper` (self)}, ${2:NULL});$0
+	g_return_val_if_fail (${1:`$filename|stripsuffix|functify|namespace|upper`_IS_`$filename|stripsuffix|class|functify|upper` (self)}, ${2:NULL});$0
\ No newline at end of file
diff --git a/data/snippets/java.snippets b/data/snippets/java.snippets
index 2ef738b883f7ade996a6219ae50841553bc7fb53..14f4c28721cf1ae89ab4bc2bf1a547a274cca02c 100644
--- a/data/snippets/java.snippets
+++ b/data/snippets/java.snippets
@@ -1,50 +1,44 @@
-snippet clas
-- desc Create class definition
+snippet class
 - scope java, groovy
+- desc Create class definition
 	package ${$relative_dirname|descend_path|descend_path|descend_path|slash_to_dots};
-	
-	public class ${$filename|stripsuffix}
-	  {
+
+	public class ${$filename|stripsuffix} {
 	    $0
-	  }
+	}
 snippet iface
-- desc Create interface definition
 - scope java, groovy
+- desc Create interface definition
 	package ${$relative_dirname|descend_path|descend_path|descend_path|slash_to_dots};
-	
-	public interface ${$filename|stripsuffix}
-	  {
+
+	public interface ${$filename|stripsuffix} {
 	    $0
-	  }
+	}
 snippet psvm
-- desc Creates main java method
 - scope java, groovy
-	public static void main(String[] args)
-	  {
+- desc Create main java method
+	public static void main(String[] args) {
 	    $0
-	  }
+	}
 snippet itar
-- desc Create a for loop
 - scope java, groovy
-	for (int ${1:i = 0}; ${2:i < }; ${3:i++})
-	  {
+- desc Create a for loop
+	for (int ${1:i = 0}; ${2:i < }; ${3:i++}) {
 	    $0
-	  }
+	}
 snippet iter
-- desc Create a for each loop on a collection
 - scope java, groovy
-	for (${2:type} ${3:var}: ${1:collection})
-	  {
+- desc Create a for each loop on a collection
+	for (${2:type} ${3:var}: ${1:collection}) {
 	    $0
-	  }
+	}
 snippet itit
-- desc Create a for loop on an iterator
 - scope java, groovy
-	while (${1:it}.hasNext())
-	  {
+- desc Create a for loop on an iterator
+	while (${1:it}.hasNext()) {
 	    Object next = $1.next();
 	    $0
-	  }
+	}
 snippet comment
 - scope java, groovy
 	/*
@@ -60,4 +54,4 @@ snippet sout
 	System.out.println($0);
 snippet serr
 - scope java
-	System.err.println($0);
+	System.err.println($0);
\ No newline at end of file
diff --git a/data/snippets/js.snippets b/data/snippets/js.snippets
index 734395a2744e1638e0c372e2d14e80f06ed0145a..ffe9ac2ef89042cb9111c280e2ca07f2c8456a8f 100644
--- a/data/snippets/js.snippets
+++ b/data/snippets/js.snippets
@@ -1,50 +1,39 @@
+snippet import
+	import "${1:./module.js}";
+	$0
+snippet from
+	import ${1:Module} from "${2:./}${3:$1|lower}";
+	$0
+snippet require
+	const ${1:Module} = require("${2:./}${3:$1|lower}");
+	$0
 snippet gi
 	const ${1:Gtk} = imports.gi.$1;
 	$0
 snippet lang
 	const ${1:Lang} = imports.${$1|decapitalize};
 	$0
-snippet import
-	const ${1:ModuleName} = imports.${2:path}.${$1|decapitalize};
-	$0
-snippet require
-	const ${1:ModuleName} = require("${$1|lower}");
+snippet imports
+	const ${1:Module} = imports.${2:path}.${$1|decapitalize};
 	$0
 snippet class
-	const ${1:ClassName} = new Lang.Class({
-		Name: '$1',
-
-		_init: function () {
-			$0
-		},
-	});
-snippet gobject
-	const ${1:ClassName} = new Lang.Class({
-		Name: '$1',
-		GTypeName: '${2:$1}',
-		Extends: ${3:GObject.Object},
-
-	${4:	Properties: {},}
-	${5:	Signals: {},}
-
-		_init: function (props={}) {
-			this.parent(props);
+	class ${1:ClassName} {
+		constructor(${2}) {
 			$0
-		},
-	});
-snippet gproperty
-	'${1:foo}': GObject.ParamSpec.${2:int}('$1',
-		'${3:$1|capitalize}', '${4:Property description}',
-		$0),
-snippet gsignal
-	'${1:signal}': {$0},
+		}
+	}
+snippet method
+- desc Create class method
+	${1:name}(${2}) {
+		$0
+	}
 snippet function
 	function ${1:name}(${2}) {
 		$0
 	}
 snippet arrow
 - desc Create arrow function
-	(${1}) => {
+	${1:()} => {
 		$0
 	}
 snippet if
@@ -71,6 +60,7 @@ snippet case
 		$0
 		break;
 snippet default
+- desc default … break
 	default:
 		$0
 		break;
@@ -97,7 +87,7 @@ snippet try
 		$0
 	}
 snippet catch
-	catch (${1:e}) {
+	catch (${1:err}) {
 		$0
 	}
 snippet finally
@@ -117,4 +107,4 @@ snippet error
 snippet info
 	console.info("${1:message}");$0
 snippet warn
-	console.warn("${1:message}");$0
+	console.warn("${1:message}");$0
\ No newline at end of file
diff --git a/data/snippets/main.snippets b/data/snippets/main.snippets
index 824969a1c0999505b1d053df9a29f5e2bc87c2ca..9429cdd81abc31ddb6592ee346d6534488113243 100644
--- a/data/snippets/main.snippets
+++ b/data/snippets/main.snippets
@@ -22,4 +22,4 @@ snippet main
 - scope rust
 	fn main() {
 	    $0
-	}
+	}
\ No newline at end of file
diff --git a/data/snippets/python.snippets b/data/snippets/python.snippets
index 31630baa7cfcdaf2c5b831888aef805326ae2055..888a6f6e5e66129f0193055e3ab29fc63556d3f9 100644
--- a/data/snippets/python.snippets
+++ b/data/snippets/python.snippets
@@ -8,7 +8,7 @@ snippet import
 	import $0
 snippet from
 - scope python, python3
-	from ${1} import $0
+	from ${1:__future__} import $0
 snippet def
 - scope python, python3
 	def ${1:function}(${2}):
@@ -22,50 +22,41 @@ snippet class
 	
 	$0
 snippet if
+- scope python, python3
 	if ${1:condition}:
 		$0
 snippet else
+- scope python, python3
 	else:
 		$0
 snippet elif
+- scope python, python3
 	elif ${1:condition}:
 		$0
 snippet while
+- scope python, python3
 	while ${1:condition}:
 		$0
 snippet for
+- scope python, python3
 	for ${1:item} in ${2:collection}:
 		$0
 snippet try
+- scope python, python3
 	try:
 		$0
 snippet except
+- scope python, python3
 	except ${1:Exception}:
 		$0
 snippet finally
+- scope python, python3
 	finally:
 		$0
-snippet lambda
-	lambda ${1:name}: $0
-snippet gobject
-- scope python
-	class ${1:ClassName}(${2:GObject.Object}):
-
-		def __init__(self${3:,}):
-			$2.__init__(self)
-	
-	$0
-- scope python3
-	class ${1:ClassName}(${2:GObject.Object}):
-
-		def __init__(self${3:,}):
-			super().__init__()
-	
-	$0
-snippet gsignal
-- desc Entry in __gsignals__ dictionary
+snippet with
 - scope python, python3
-	"${1:signal}": (GObject.SignalFlags.${2:RUN_FIRST}, ${3:None}, (${4:int,}))$0
-snippet gproperty
+	with ${1:expression} as ${2:variable}:
+		$0
+snippet lambda
 - scope python, python3
-	${1:foo} = GObject.Property(type=${2:int}, default=${3:0})$0
+	lambda ${1:name}: $0
\ No newline at end of file
diff --git a/data/snippets/rust.snippets b/data/snippets/rust.snippets
index 96dc80a4ea922b9354cf3df03911e4f89bbc741c..66d9f483bac7999902055c24bd992a21b2fa7f7e 100644
--- a/data/snippets/rust.snippets
+++ b/data/snippets/rust.snippets
@@ -1,18 +1,22 @@
 snippet allow
-- desc #[allow(…)]
-	#[allow(${1:lint})]
+- desc #![allow(…)]
+	#${1:!}[allow(${2:lint})]
 	$0
 snippet deny
-- desc #[deny(…)]
-	#[deny(${1:lint})]
+- desc #![deny(…)]
+	#${1:!}[deny(${2:lint})]
 	$0
 snippet forbid
-- desc #[forbid(…)]
-	#[forbid(${1:lint})]
+- desc #![forbid(…)]
+	#${1:!}[forbid(${2:lint})]
 	$0
 snippet warn
-- desc #[warn(…)]
-	#[warn(${1:lint})]
+- desc #![warn(…)]
+	#${1:!}[warn(${2:lint})]
+	$0
+snippet doc
+- desc #![doc(…)]
+	#${1:!}[doc(${2:hidden})]
 	$0
 snippet deprecated
 - desc #[deprecated(…)]
@@ -27,8 +31,12 @@ snippet should_panic
 	#[should_panic(expected = "${1:reason}")]
 	$0
 snippet cfg
-- desc #[cfg(…)]
-	#[cfg(${1:expression})]
+- desc #![cfg(…)]
+	#${1:!}[cfg(${2:expression})]
+	$0
+snippet cfg_attr
+- desc #![cfg_attr(…)]
+	#${1:!}[cfg_attr(${2:expression}, ${3:attribute})]
 	$0
 snippet derive
 - desc #[derive(…)]
@@ -187,7 +195,7 @@ snippet whilelet
 	    $0
 	}
 snippet for
-	for ${1:item} in ${2:collection}.iter() {
+	for ${1:item} in ${2:collection.iter()} {
 	    $0
 	}
 snippet loop
@@ -212,7 +220,7 @@ snippet type
 	type ${1:Alias} = ${2:Type};$0
 snippet vec
 - desc vec![…]
-	vec![${1:expression}; ${2:size}];$0
+	vec![${1:expression}; ${2:size}]$0
 snippet format_args
 - desc format_args!(…)
 	format_args!("${1:{}}", ${2:expression})$0
@@ -221,25 +229,25 @@ snippet format
 	format!("${1:{}}", ${2:expression})$0
 snippet write
 - desc write!(…)
-	write!(${1:buffer}, "${2:{}}", ${3:expression});$0
+	write!(${1:buffer}, "${2:{}}", ${3:expression})$0
 snippet writeln
 - desc writeln!(…)
-	writeln!(${1:buffer}, "${2:{}}", ${3:expression});$0
+	writeln!(${1:buffer}, "${2:{}}", ${3:expression})$0
 snippet print
 - desc print!(…)
-	print!("${1:{}}", ${2:expression});$0
+	print!("${1:{}}", ${2:expression})$0
 snippet println
 - desc println!(…)
-	println!("${1:{}}", ${2:expression});$0
+	println!("${1:{}}", ${2:expression})$0
 snippet eprint
 - desc eprint!(…)
-	eprint!("${1:{}}", ${2:expression});$0
+	eprint!("${1:{}}", ${2:expression})$0
 snippet eprintln
 - desc eprintln!(…)
-	eprintln!("${1:{}}", ${2:expression});$0
+	eprintln!("${1:{}}", ${2:expression})$0
 snippet panic
 - desc panic!(…)
-	panic!("${1:{}}", ${2:expression});$0
+	panic!("${1:{}}", ${2:expression})$0
 snippet unreachable
 - desc unreachable!(…)
 	unreachable!("${1:reason}")$0
@@ -248,13 +256,13 @@ snippet unimplemented
 	unimplemented!()$0
 snippet assert
 - desc assert!(…)
-	assert!(${1:expression});$0
+	assert!(${1:expression})$0
 snippet assert_eq
 - desc assert_eq!(…)
-	assert_eq!(${1:expression1}, ${2:expression2});$0
+	assert_eq!(${1:expression1}, ${2:expression2})$0
 snippet assert_ne
 - desc assert_ne!(…)
-	assert_ne!(${1:expression1}, ${2:expression2});$0
+	assert_ne!(${1:expression1}, ${2:expression2})$0
 snippet testsmod
 - desc Create tests module
 	#[cfg(test)]
@@ -271,4 +279,4 @@ snippet test
 	#[test]
 	fn ${1:function_name}() {
 	    unimplemented!()$0
-	}
+	}
\ No newline at end of file