Format Scala method arguments
The Format autoload 'format.vim' code file should be in the 'autoload/scala' directory, the 'format.txt' in the 'doc/scala' directory and the plugin 'format.vim' code in the 'plugin/scala' directory.
Place the cursor on any character in the method name or on the methods left paren, '(', and then invoke this script. If you use the binding above, you would enter f.
The script finds the first non-white-space character after the method's left paren and uses that as the character position for aligning all arguments.
Examples of method calls:
m1(thisIsArgOne, thisIsArgTwo, thisIsArgThree(), thisIsArgFour): Sometype = {
....
}
becomes
m1(thisIsArgOne,
thisIsArgTwo,
thisIsArgThree(),
thisIsArgFour): Sometype = {
....
}
and the following (note first argument position):
aVeryLongMethodNameAsAnExampleUsage(
thisIsArgOne, thisIsArgTwo, thisIsArgThree, thisIsArgFour): Sometype = {
....
}
becomes
aVeryLongMethodNameAsAnExampleUsage(
thisIsArgOne,
thisIsArgTwo,
thisIsArgThree,
thisIsArgFour): Sometype = {
....
}
becomes (with g:scala_format_extra_arg_offset = 2)
aVeryLongMethodNameAsAnExampleUsage(
thisIsArgOne,
thisIsArgTwo,
thisIsArgThree,
thisIsArgFour): Sometype = {
....
}
Generally, in this case you can change the location of the first method argument and reformat and it works (the rest of the arguments are aligned under the first argument).
Examples of method calls with string arguments:
m1(thisIsArgOne, "this is" + somestring + "a \"foo()\" test", thisIsArgThree): Sometype = {
....
}
becomes (with let g:scala_format_extra_string_arg_offset = 0)
m1(thisIsArgOne,
"this is" +
somestring +
"a \"foo()\" test",
thisIsArgThree): Sometype = {
....
}
or becomes (with let g:scala_format_extra_string_arg_offset = 2)
m1(thisIsArgOne,
"this is" +
somestring +
"a \"foo()\" test",
thisIsArgThree): Sometype = {
....
}
Yea, it can actually do this.
One more example of a method where an argument is itself a method call:
m1(thisIsArgOne, thisIsArgTwo(innerOne, innerTwo), thisIsArgThree()): Sometype = {
....
}
placing cursor on "m1(" and invoking this script becomes
m1(thisIsArgOne,
thisIsArgTwo(innerOne, innerTwo),
thisIsArgThree()): Sometype = {
....
}
then placing cursor on "thisIsArgTwo(" and invoking this script becomes >
m1(thisIsArgOne,
thisIsArgTwo(innerOne,
innerTwo),
thisIsArgThree()): Sometype = {
....
}
Examples of method definitions:
def m1(thisIsArgOne: String, thisIsArgTwo: Int, thisIsArgThree: Float): Sometype = {
....
}
becomes
def m1(thisIsArgOne: String,
thisIsArgTwo: Int,
thisIsArgThree: Float): Sometype = {
....
}
and the following (note first argument position):
def aVeryLongMethodNameAsAnExampleUsage(
thisIsArgOne: String, thisIsArgTwo: Int, thisIsArgThree: Float): Sometype = {
....
}
becomes
def aVeryLongMethodNameAsAnExampleUsage(
thisIsArgOne: String,
thisIsArgTwo: Int,
thisIsArgThree: Float): Sometype = {
....
}
Array definition: As an unplanned extra, this can be used to format the arguments to an array:
val a = Array[Int] ( 1, 3, 4, 5, 4)
becomes
val a = Array[Int] ( 1,
3,
4,
5,
4)
and
val a = Array[Int] (
1, 3, 4, 5, 4)
becomes
val a = Array[Int] (
1,
3,
4,
5,
4)
Ok, so formating an array does not do too much.
- Andy Wokula: provided feedback on help file syntax.