From e3fe104e7d5ec184aac36128aed2d217cb655dfc Mon Sep 17 00:00:00 2001
From: Florian Frank <flori@ping.de>
Date: Wed, 22 Sep 2010 22:21:02 +0200
Subject: started to build jruby extension with Rakefile

---
 src/json/ext/StringEncoder.java | 106 ----------------------------------------
 1 file changed, 106 deletions(-)
 delete mode 100644 src/json/ext/StringEncoder.java

(limited to 'src/json/ext/StringEncoder.java')

diff --git a/src/json/ext/StringEncoder.java b/src/json/ext/StringEncoder.java
deleted file mode 100644
index 57bd19b..0000000
--- a/src/json/ext/StringEncoder.java
+++ /dev/null
@@ -1,106 +0,0 @@
-package json.ext;
-
-import org.jruby.exceptions.RaiseException;
-import org.jruby.runtime.ThreadContext;
-import org.jruby.util.ByteList;
-
-/**
- * An encoder that reads from the given source and outputs its representation
- * to another ByteList. The source string is fully checked for UTF-8 validity,
- * and throws a GeneratorError if any problem is found.
- */
-final class StringEncoder extends ByteListTranscoder {
-    private final boolean asciiOnly;
-
-    // Escaped characters will reuse this array, to avoid new allocations
-    // or appending them byte-by-byte
-    private final byte[] aux =
-        new byte[] {/* First unicode character */
-                    '\\', 'u', 0, 0, 0, 0,
-                    /* Second unicode character (for surrogate pairs) */
-                    '\\', 'u', 0, 0, 0, 0,
-                    /* "\X" characters */
-                    '\\', 0};
-    // offsets on the array above
-    private static final int ESCAPE_UNI1_OFFSET = 0;
-    private static final int ESCAPE_UNI2_OFFSET = ESCAPE_UNI1_OFFSET + 6;
-    private static final int ESCAPE_CHAR_OFFSET = ESCAPE_UNI2_OFFSET + 6;
-    /** Array used for code point decomposition in surrogates */
-    private final char[] utf16 = new char[2];
-
-    private static final byte[] HEX =
-            new byte[] {'0', '1', '2', '3', '4', '5', '6', '7',
-                        '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
-
-    StringEncoder(ThreadContext context, boolean asciiOnly) {
-        super(context);
-        this.asciiOnly = asciiOnly;
-    }
-
-    void encode(ByteList src, ByteList out) {
-        init(src, out);
-        append('"');
-        while (hasNext()) {
-            handleChar(readUtf8Char());
-        }
-        quoteStop(pos);
-        append('"');
-    }
-
-    private void handleChar(int c) {
-        switch (c) {
-        case '"':
-        case '\\':
-            escapeChar((char)c);
-            break;
-        case '\n':
-            escapeChar('n');
-            break;
-        case '\r':
-            escapeChar('r');
-            break;
-        case '\t':
-            escapeChar('t');
-            break;
-        case '\f':
-            escapeChar('f');
-            break;
-        case '\b':
-            escapeChar('b');
-            break;
-        default:
-            if (c >= 0x20 && c <= 0x7f ||
-                    (c >= 0x80 && !asciiOnly)) {
-                quoteStart();
-            } else {
-                quoteStop(charStart);
-                escapeUtf8Char(c);
-            }
-        }
-    }
-
-    private void escapeChar(char c) {
-        quoteStop(charStart);
-        aux[ESCAPE_CHAR_OFFSET + 1] = (byte)c;
-        append(aux, ESCAPE_CHAR_OFFSET, 2);
-    }
-
-    private void escapeUtf8Char(int codePoint) {
-        int numChars = Character.toChars(codePoint, utf16, 0);
-        escapeCodeUnit(utf16[0], ESCAPE_UNI1_OFFSET + 2);
-        if (numChars > 1) escapeCodeUnit(utf16[1], ESCAPE_UNI2_OFFSET + 2);
-        append(aux, ESCAPE_UNI1_OFFSET, 6 * numChars);
-    }
-
-    private void escapeCodeUnit(char c, int auxOffset) {
-        for (int i = 0; i < 4; i++) {
-            aux[auxOffset + i] = HEX[(c >>> (12 - 4 * i)) & 0xf];
-        }
-    }
-
-    @Override
-    protected RaiseException invalidUtf8() {
-         return Utils.newException(context, Utils.M_GENERATOR_ERROR,
-                 "source sequence is illegal/malformed utf-8");
-    }
-}
-- 
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