Add more default Windows-1252 characters #23
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It's an incompatibility between Windows-1252 and ISO-8859-1, and it looks like no V1-EN game uses it anyway, to the best of my knowledge. It's still possible to use the associated escape sequence, if necessary. Issue #5.
Add the "í", "ó", "ú", "ñ", "Ñ", "¿" and "¡" characters to the internal Windows-1252 table, since they appear by default in some SCUMM games at the same positions.
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I've added some characters present in Indy4. The Dig has a bit more characters, too. I need to look into that. Also, we output Windows-1252/ISO-8859-1, but the internal SCUMM fonts seem to follow CP-437 or CP-850 (which look plausible, since the games have a huge DOS background): https://en.wikipedia.org/wiki/Code_page_437 I need to look at various fonts from various SCUMM games, but if this is confirmed, then we could just provide a CP-850 -> Windows-1252 mapping for all Western European characters when using |
…s used By default, SCUMM games often render the quotation mark symbol (0022) and the grave accent (0060) with the same glyph, but for some cases or for some languages, it's probably better to output them as different characters, as is done is the default ASCII mode (i.e. when -c is not used).
It appears that most SCUMM games actually follow the MS-DOS CP 850 code page internally, so we can try recognize any "useful" but missing CP 850 character, as long as they're available at the same codepoints in both Windows-1252 and ISO-8859-1, and as long as no SCUMM game already uses that codepoint. Warning: recognizing it doesn't mean that it will work in-game. It may not have been drawn in the included font; use scummfont for that, if necessary. The idea is to settle on a safe subset/variant of the MS-DOS CP 850 code page. This should improve compatibility for Western European alphabets such as the ones used in the French, Italian, Spanish, Irish, Portuguese, Welsh, Icelandic, or Scandinavian languages. They're also a bit of improvement for some Eastern European alphabets. It is still incomplete and biased towards Western European languages. Sorry for that, but this is the historical behaviour of these games. Hopefully we'll find another way of improving the situation for other languages, alphabets and users… in the meantime, it's still possible to use the ASCII mode, and do your local modifications to the included fonts, but it's not convenient.
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I tried importing some more "safe" characters from CP-850 (the details are in the commits and comments). This will need some serious testing… |
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I need to check the font from Loom EGA FR again; it looks like it has some local changes compared to CP850… |
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Using
scummfonton later non-English SCUMM games, we can see that some characters (such as some Spanish characters) are often present at the same positions, so if they're reliably put at the same places, we could consider them "canonical" and add them by default, to avoid having to type escape sequences for them.This doesn't mean that the used fonts will always have them, but it's probably a good idea to settle on "official" character positions, before everyone puts them at different places in their own font modifications.