fop-core/src/main/java/org/apache/fop/complexscripts/fonts/OTFAdvancedTypographicTableReader.java [1200:1251]:
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        } else {
            ct = null;
        }
        // read rule sets
        GlyphTable.RuleSet[] rsa = new GlyphTable.RuleSet [ nrs ];
        String header = null;
        for (int i = 0; i < nrs; i++) {
            GlyphTable.RuleSet rs;
            int rso = rsoa [ i ];
            if (rso > 0) {
                // seek to rule set [ i ]
                in.seekSet(subtableOffset + rso);
                // read rule count
                int nr = in.readTTFUShort();
                // read rule offsets
                int[] roa = new int [ nr ];
                GlyphTable.Rule[] ra = new GlyphTable.Rule [ nr ];
                for (int j = 0; j < nr; j++) {
                    roa [ j ] = in.readTTFUShort();
                }
                // read glyph sequence rules
                for (int j = 0; j < nr; j++) {
                    GlyphTable.ChainedGlyphSequenceRule r;
                    int ro = roa [ j ];
                    if (ro > 0) {
                        // seek to rule [ j ]
                        in.seekSet(subtableOffset + rso + ro);
                        // read backtrack glyph count
                        int nbg = in.readTTFUShort();
                        // read backtrack glyphs
                        int[] backtrackGlyphs = new int [ nbg ];
                        for (int k = 0, nk = backtrackGlyphs.length; k < nk; k++) {
                            backtrackGlyphs [ k ] = in.readTTFUShort();
                        }
                        // read input glyph count
                        int nig = in.readTTFUShort();
                        // read glyphs
                        int[] glyphs = new int [ nig - 1 ];
                        for (int k = 0, nk = glyphs.length; k < nk; k++) {
                            glyphs [ k ] = in.readTTFUShort();
                        }
                        // read lookahead glyph count
                        int nlg = in.readTTFUShort();
                        // read lookahead glyphs
                        int[] lookaheadGlyphs = new int [ nlg ];
                        for (int k = 0, nk = lookaheadGlyphs.length; k < nk; k++) {
                            lookaheadGlyphs [ k ] = in.readTTFUShort();
                        }
                        // read rule lookup count
                        int nl = in.readTTFUShort();
                        // read rule lookups
                        if (log.isDebugEnabled()) {
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fop-core/src/main/java/org/apache/fop/complexscripts/fonts/OTFAdvancedTypographicTableReader.java [2759:2810]:
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        } else {
            ct = null;
        }
        // read rule sets
        GlyphTable.RuleSet[] rsa = new GlyphTable.RuleSet [ nrs ];
        String header = null;
        for (int i = 0; i < nrs; i++) {
            GlyphTable.RuleSet rs;
            int rso = rsoa [ i ];
            if (rso > 0) {
                // seek to rule set [ i ]
                in.seekSet(subtableOffset + rso);
                // read rule count
                int nr = in.readTTFUShort();
                // read rule offsets
                int[] roa = new int [ nr ];
                GlyphTable.Rule[] ra = new GlyphTable.Rule [ nr ];
                for (int j = 0; j < nr; j++) {
                    roa [ j ] = in.readTTFUShort();
                }
                // read glyph sequence rules
                for (int j = 0; j < nr; j++) {
                    GlyphTable.ChainedGlyphSequenceRule r;
                    int ro = roa [ j ];
                    if (ro > 0) {
                        // seek to rule [ j ]
                        in.seekSet(subtableOffset + rso + ro);
                        // read backtrack glyph count
                        int nbg = in.readTTFUShort();
                        // read backtrack glyphs
                        int[] backtrackGlyphs = new int [ nbg ];
                        for (int k = 0, nk = backtrackGlyphs.length; k < nk; k++) {
                            backtrackGlyphs [ k ] = in.readTTFUShort();
                        }
                        // read input glyph count
                        int nig = in.readTTFUShort();
                        // read glyphs
                        int[] glyphs = new int [ nig - 1 ];
                        for (int k = 0, nk = glyphs.length; k < nk; k++) {
                            glyphs [ k ] = in.readTTFUShort();
                        }
                        // read lookahead glyph count
                        int nlg = in.readTTFUShort();
                        // read lookahead glyphs
                        int[] lookaheadGlyphs = new int [ nlg ];
                        for (int k = 0, nk = lookaheadGlyphs.length; k < nk; k++) {
                            lookaheadGlyphs [ k ] = in.readTTFUShort();
                        }
                        // read rule lookup count
                        int nl = in.readTTFUShort();
                        // read rule lookups
                        if (log.isDebugEnabled()) {
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