1 files changed, 85 insertions, 0 deletions
diff --git a/testing/web-platform/tests/encoding/legacy-mb-japanese/euc-jp/eucjp-decoder.js b/testing/web-platform/tests/encoding/legacy-mb-japanese/euc-jp/eucjp-decoder.js
new file mode 100644
index 0000000000..e1fe01df11
--- /dev/null
+++ b/testing/web-platform/tests/encoding/legacy-mb-japanese/euc-jp/eucjp-decoder.js
@@ -0,0 +1,85 @@
+function dec2char(n) {
+    // converts a decimal number to a Unicode character
+    // n: the dec codepoint value to be converted
+    if (n <= 0xffff) {
+        out = String.fromCharCode(n);
+    } else if (n <= 0x10ffff) {
+        n -= 0x10000;
+        out =
+            String.fromCharCode(0xd800 | (n >> 10)) +
+            String.fromCharCode(0xdc00 | (n & 0x3ff));
+    } else out = "dec2char error: Code point out of range: " + n;
+    return out;
+}
+
+function eucjpDecoder(stream) {
+    stream = stream.replace(/%/g, " ");
+    stream = stream.replace(/[\s]+/g, " ").trim();
+    var bytes = stream.split(" ");
+    for (var i = 0; i < bytes.length; i++) bytes[i] = parseInt(bytes[i], 16);
+    var out = "";
+
+    var lead, byte, offset, ptr, cp;
+    var jis0212flag = false;
+    var eucjpLead = 0x00;
+    var endofstream = 2000000;
+    var finished = false;
+
+    while (!finished) {
+        if (bytes.length == 0) byte = endofstream;
+        else byte = bytes.shift();
+
+        if (byte == endofstream && eucjpLead != 0x00) {
+            eucjpLead = 0x00;
+            out += "�";
+            continue;
+        }
+        if (byte == endofstream && eucjpLead == 0x00) {
+            finished = true;
+            continue;
+        }
+        if (eucjpLead == 0x8e && byte >= 0xa1 && byte <= 0xdf) {
+            eucjpLead = 0x00;
+            out += dec2char(0xff61 + byte - 0xa1);
+            continue;
+        }
+        if (eucjpLead == 0x8f && byte >= 0xa1 && byte <= 0xfe) {
+            jis0212flag = true;
+            eucjpLead = byte;
+            continue;
+        }
+        if (eucjpLead != 0x00) {
+            lead = eucjpLead;
+            eucjpLead = 0x00;
+            cp = null;
+
+            if (
+                lead >= 0xa1 &&
+                lead <= 0xfe &&
+                (byte >= 0xa1 && byte <= 0xfe)
+            ) {
+                ptr = (lead - 0xa1) * 94 + byte - 0xa1;
+                if (jis0212flag) cp = jis0212[ptr];
+                else cp = jis0208[ptr];
+            }
+            jis0212flag = false;
+            if (cp != null) {
+                out += dec2char(cp);
+                continue;
+            }
+            if (byte >= 0x00 && byte <= 0x7f) bytes.unshift(byte);
+            out += "�";
+            continue;
+        }
+        if (byte >= 0x00 && byte <= 0x7f) {
+            out += dec2char(byte);
+            continue;
+        }
+        if (byte == 0x8e || byte == 0x8f || (byte >= 0xa1 && byte <= 0xfe)) {
+            eucjpLead = byte;
+            continue;
+        }
+        out += "�";
+    }
+    return out;
+}