| var sjisCPs = []; // index is unicode cp, value is pointer |
| for (var p = 0; p < 8272; p++) { |
| if (jis0208[p] != null && sjisCPs[jis0208[p]] == null) { |
| sjisCPs[jis0208[p]] = p; |
| } |
| } |
| for (p = 8836; p < jis0208.length; p++) { |
| if (jis0208[p] != null && sjisCPs[jis0208[p]] == null) { |
| sjisCPs[jis0208[p]] = p; |
| } |
| } |
| |
| function chars2cps(chars) { |
| // this is needed because of javascript's handling of supplementary characters |
| // char: a string of unicode characters |
| // returns an array of decimal code point values |
| var haut = 0; |
| var out = []; |
| for (var i = 0; i < chars.length; i++) { |
| var b = chars.charCodeAt(i); |
| if (b < 0 || b > 0xffff) { |
| alert("Error in chars2cps: byte out of range " + b.toString(16) + "!"); |
| } |
| if (haut != 0) { |
| if (0xdc00 <= b && b <= 0xdfff) { |
| out.push(0x10000 + ((haut - 0xd800) << 10) + (b - 0xdc00)); |
| haut = 0; |
| continue; |
| } else { |
| alert( |
| "Error in chars2cps: surrogate out of range " + |
| haut.toString(16) + |
| "!" |
| ); |
| haut = 0; |
| } |
| } |
| if (0xd800 <= b && b <= 0xdbff) { |
| haut = b; |
| } else { |
| out.push(b); |
| } |
| } |
| return out; |
| } |
| |
| function sjisEncoder(stream) { |
| var cps = chars2cps(stream); |
| var out = ""; |
| var cp; |
| var finished = false; |
| var endofstream = 2000000; |
| |
| while (!finished) { |
| if (cps.length == 0) cp = endofstream; |
| else cp = cps.shift(); |
| |
| if (cp == endofstream) { |
| finished = true; |
| continue; |
| } |
| if ((cp >= 0x00 && cp <= 0x7f) || cp == 0x80) { |
| out += " " + cp.toString(16).toUpperCase(); |
| continue; |
| } |
| if (cp == 0xa5) { |
| out += " 5C"; |
| continue; |
| } |
| if (cp == 0x203e) { |
| out += " 7E"; |
| continue; |
| } |
| if (cp >= 0xff61 && cp <= 0xff9f) { |
| temp = cp - 0xff61 + 0xa1; |
| out += temp.toString(16).toUpperCase(); |
| continue; |
| } |
| if (cp == 0x2212) { |
| cp = 0xff0d; |
| } |
| var ptr = sjisCPs[cp]; |
| if (ptr == null) { |
| return null; |
| // out += ' &#'+cp+';' |
| // continue |
| } |
| var lead = Math.floor(ptr / 188); |
| if (lead < 0x1f) leadoffset = 0x81; |
| else leadoffset = 0xc1; |
| var trail = ptr % 188; |
| first = lead + leadoffset; |
| if (trail < 0x3f) offset = 0x40; |
| else offset = 0x41; |
| second = trail + offset; |
| out += |
| " " + |
| first.toString(16).toUpperCase() + |
| " " + |
| second.toString(16).toUpperCase(); |
| } |
| return out.trim(); |
| } |
| |
| function convertToHex(str) { |
| // converts a string of ASCII characters to hex byte codes |
| var out = ""; |
| var result; |
| for (var c = 0; c < str.length; c++) { |
| result = str.charCodeAt(c).toString(16).toUpperCase() + " "; |
| out += result; |
| } |
| return out; |
| } |
| |
| function normalizeStr(str) { |
| var out = ""; |
| for (var c = 0; c < str.length; c++) { |
| if (str.charAt(c) == "%") { |
| out += String.fromCodePoint( |
| parseInt(str.charAt(c + 1) + str.charAt(c + 2), 16) |
| ); |
| c += 2; |
| } else out += str.charAt(c); |
| } |
| var result = ""; |
| for (var o = 0; o < out.length; o++) { |
| result += "%" + out.charCodeAt(o).toString(16).toUpperCase(); |
| } |
| return result.replace(/%1B%28%42$/, ""); |
| } |