ShaderLab attributes' parameters are not parsed correctly when they begin with numbers

[ChudeRonczki]

An error is reported whenever a parameter for an attribute starts with a number, but contains any character that is not a number. Examples:

[KeywordEnum(6 Frames Layout, Latitude Longitude Layout)] _Mapping("Mapping", Float) = 1 [Enum(360 Degrees, 0, 180 Degrees, 1)] _ImageType("Image Type", Float) = 0

[IvanPashchenko]

Note: you can write almost anything you want inside the attributes, e.g.

[AsdfsfsfSD(dasdasdasda]
 _ImageType("Image Type", Float) = 0

will not cause any errors.