forked from LeenkxTeam/Kmake
86 lines
2.5 KiB
JavaScript
86 lines
2.5 KiB
JavaScript
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function dec2char(n) {
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// converts a decimal number to a Unicode character
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// n: the dec codepoint value to be converted
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if (n <= 0xffff) {
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out = String.fromCharCode(n);
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} else if (n <= 0x10ffff) {
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n -= 0x10000;
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out =
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String.fromCharCode(0xd800 | (n >> 10)) +
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String.fromCharCode(0xdc00 | (n & 0x3ff));
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} else out = "dec2char error: Code point out of range: " + n;
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return out;
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}
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function eucjpDecoder(stream) {
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stream = stream.replace(/%/g, " ");
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stream = stream.replace(/[\s]+/g, " ").trim();
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var bytes = stream.split(" ");
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for (var i = 0; i < bytes.length; i++) bytes[i] = parseInt(bytes[i], 16);
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var out = "";
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var lead, byte, offset, ptr, cp;
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var jis0212flag = false;
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var eucjpLead = 0x00;
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var endofstream = 2000000;
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var finished = false;
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while (!finished) {
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if (bytes.length == 0) byte = endofstream;
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else byte = bytes.shift();
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if (byte == endofstream && eucjpLead != 0x00) {
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eucjpLead = 0x00;
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out += "<22>";
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continue;
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}
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if (byte == endofstream && eucjpLead == 0x00) {
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finished = true;
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continue;
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}
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if (eucjpLead == 0x8e && byte >= 0xa1 && byte <= 0xdf) {
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eucjpLead = 0x00;
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out += dec2char(0xff61 + byte - 0xa1);
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continue;
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}
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if (eucjpLead == 0x8f && byte >= 0xa1 && byte <= 0xfe) {
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jis0212flag = true;
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eucjpLead = byte;
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continue;
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}
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if (eucjpLead != 0x00) {
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lead = eucjpLead;
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eucjpLead = 0x00;
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cp = null;
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if (
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lead >= 0xa1 &&
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lead <= 0xfe &&
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(byte >= 0xa1 && byte <= 0xfe)
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) {
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ptr = (lead - 0xa1) * 94 + byte - 0xa1;
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if (jis0212flag) cp = jis0212[ptr];
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else cp = jis0208[ptr];
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}
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jis0212flag = false;
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if (cp != null) {
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out += dec2char(cp);
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continue;
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}
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if (byte >= 0x00 && byte <= 0x7f) bytes.unshift(byte);
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out += "<22>";
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continue;
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}
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if (byte >= 0x00 && byte <= 0x7f) {
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out += dec2char(byte);
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continue;
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}
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if (byte == 0x8e || byte == 0x8f || (byte >= 0xa1 && byte <= 0xfe)) {
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eucjpLead = byte;
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continue;
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}
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out += "<22>";
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}
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return out;
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}
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