Exceptions

Namespace: PinataLabs.Typography.

Exception
├── FontException
│   ├── FontFamilyNotFoundException
│   └── GlyphMissingException
└── InvalidFontFileException
    ├── InvalidFontTableException
    └── MissingFontTableException

Exception	Thrown when	Extra members
FontException	A general font error, for example when you use a default FontFamily. The base class of the two below.
FontFamilyNotFoundException	Get or CreateFont cannot find a family by name.	FontFamily: the name that was not found. SearchDirectories: the folders that were searched, for system fonts.
GlyphMissingException	Not thrown by the library at present. A missing glyph gives the font's missing-glyph box instead.
InvalidFontFileException	The data is not a font that the library can read.
InvalidFontTableException	A table in the font has data that is not valid.	Table: the tag of the table.
MissingFontTableException	The font has no table that the library needs, such as cmap or head.	Table: the tag of the table.

The library also throws the standard .NET exceptions: ArgumentNullException for a null argument, ArgumentOutOfRangeException for a negative Dpi, ArgumentException for a LineSpacing of 0, and FileNotFoundException and other I/O exceptions when it reads a file.

To load fonts that a user supplies, catch InvalidFontFileException (which also catches the two table exceptions) and show a message:

try
{
    fonts.Add(path);
}
catch (InvalidFontFileException ex)
{
    Console.WriteLine($"{Path.GetFileName(path)} is not a usable font: {ex.Message}");
}