匹配不以点或：字符开头的字符串

Question

I have the text below and I want to match the variable and the function types only. So on the first line I want to match only the first "float", on the second line I want to match the first and the third "float" and then same for the "int".

Of course this is dynamic, basically I want to match with a regex strings that do not start with a dot or a : symbol. I tried with negative lookahead but couldn't make it work

float JsValue.float
float JsValue:float(float testFloat)
int JsValue.int
int JsValue:int(int testInt)

The regex below captures everything which is not what I want.

\b(int|bool|float)\b

Thanks

Answer 1

In the absence of lookbehind you can use negated character class:

/(?:^|[^:.])\b(int|bool|float)\b/mg

RegEx Demo