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tvdos kernel to support unicode print, and hangul kernel module to demo the unicode support

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minjaesong
2021-12-24 11:30:55 +09:00
parent 229cc78eb6
commit c802c46f90
8 changed files with 75 additions and 20 deletions
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28
assets/disk0/tvdos/TVDOS.SYS
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@@ -315,6 +315,34 @@ unicode.utf8toCodepoints = function(utf8text) {
}
return codepoints
}
// array of array: [predicate_for_coderange: (Codepoint) -> Boolean , printing_function: (Codepoint) -> Unit_that_does_screen_drawing]
// Usage: unicode.uniprint.push[(c) => 0xAC00 <= c && c <= 0xD7A3, printHalfRowHangul]
unicode.uniprint = [];
unicode.uniprint.push([c => (0 <= c && c <= 255), c => { sys.print(String.fromCodePoint(c)) }]);
// @return [predicate, printing function]
unicode.getUniprint = (c) => {
for (let k = 0; k < unicode.uniprint.length; k++) {
if (unicode.uniprint[k][0](c))
return unicode.uniprint[k]
}}
print = function(str) {
if ((typeof str === 'string' || str instanceof String) && str.length > 0) {
let cp = unicode.utf8toCodepoints(str)
let q = unicode.getUniprint(cp[0])
cp.forEach(c => {
if (q[0](c)) {
q[1](c)
}
else {
q = unicode.getUniprint(c)
q[1](c)
}
})
}
}
Object.freeze(unicode);
///////////////////////////////////////////////////////////////////////////////