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Diffstat (limited to 'lib/silfont/data/required_chars.md')
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diff --git a/lib/silfont/data/required_chars.md b/lib/silfont/data/required_chars.md new file mode 100644 index 0000000..444f2e6 --- /dev/null +++ b/lib/silfont/data/required_chars.md @@ -0,0 +1,32 @@ +# required_chars - recommended characters for Non-Roman fonts + +For optimal compatibility with a variety of operating systems, all Non-Roman fonts should include +a set of glyphs for basic Roman characters and punctuation. Ideally this should include all the +following characters, although some depend on other considerations (see the notes). The basis +for this list is a union of the Windows Codepage 1252 and MacRoman character sets plus additional +useful characters. + +The csv includes the following headers: + +* USV - Unicode Scalar Value +* ps_name - postscript name of glyph that will end up in production +* glyph_name - glyphsApp name that will be used in UFO +* sil_set - set to include in a font + * basic - should be included in any Non-Roman font + * rtl - should be included in any right-to-left script font + * sil - should be included in any SIL font +* rationale - worded to complete the phrase: "This character is needed ..." + * A - in Codepage 1252 + * B - in MacRoman + * C - for publishing + * D - for Non-Roman fonts and publishing + * E - by Google Fonts + * F - by TeX for visible space + * G - for encoding conversion utilities + * H - in case Variation Sequences are defined in future + * I - to detect byte order + * J - to render combining marks in isolation + * K - to view sidebearings for every glyph using these characters +* additional_notes - how the character might be used + +The list was previously maintained here: https://scriptsource.org/entry/gg5wm9hhd3 |