Fallback list in select_best_match

[RazrFalcon]

Currently, fonts for sans/serif/monospace/fantasy/etc. are hardcoded for Win and Mac. And there are only one font for each type.

The problem is that it doesn't guarantee that this font is present. For example, a default Win10 contains the Impact font, but the one used by TravisCI - doesn't.

Here is the list of font families available in a Travis instance:

• Arial
• Bahnschrift
• Calibri
• Cambria
• Cambria Math
• Comic Sans MS
• Consolas
• Courier New
• Ebrima
• Gadugi
• Georgia
• Ink Free
• Javanese Text
• Leelawadee UI
• Lucida Console
• Malgun Gothic
• Microsoft Himalaya
• Microsoft JhengHei
• Microsoft JhengHei UI
• Microsoft New Tai Lue
• Microsoft PhagsPa
• Microsoft Tai Le
• Microsoft YaHei
• Microsoft YaHei UI
• Microsoft Yi Baiti
• Mongolian Baiti
• MV Boli
• Myanmar Text
• Nirmala UI
• Segoe MDL2 Assets
• Segoe Print
• Segoe UI
• Segoe UI Emoji
• Segoe UI Historic
• Segoe UI Symbol
• SimSun
• NSimSun
• Times New Roman
• Trebuchet MS
• Verdana
• Webdings
• Wingdings
• Yu Gothic
• Yu Gothic UI

Not sure with one we can use as fantasy. Maybe Ink Free?

[pcwalton]

What a mess. Maybe we should just have a series of fonts to try in order.

[pcwalton]

Oh, I think that's what you were suggesting. Honestly if Impact isn't available, maybe we should just fall back to Arial or something.

[RazrFalcon]

I'm not sure what is an expected behavior in general. All I can find is this: https://www.w3.org/Style/Examples/007/fonts.en.html

So we can just hardcode a list of fonts for each style and check them all before returning NotFound. At least on Windows and macOS. Linux/fontconfig already supports CSS-style font names.

Or simple ignore this issue, since there are no obvious solution.

[atouchet]

Travis CI is no longer being used. Is this issue still relevant?