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3 | 3 | * SPDX-License-Identifier: Apache-2.0
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4 | 4 | */
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5 | 5 |
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6 |
| - |
7 | 6 | package org.opensearch.sql.legacy.antlr.syntax;
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8 | 7 |
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9 | 8 | import org.antlr.v4.runtime.CharStream;
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10 | 9 | import org.antlr.v4.runtime.CharStreams;
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11 | 10 | import org.antlr.v4.runtime.misc.Interval;
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12 | 11 |
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13 | 12 | /**
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14 |
| - * Custom stream to convert character to upper case for case insensitive grammar before sending to lexer. |
| 13 | + * Custom stream to convert character to upper case for case insensitive grammar before sending to |
| 14 | + * lexer. |
15 | 15 | */
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16 | 16 | public class CaseInsensitiveCharStream implements CharStream {
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17 | 17 |
|
18 |
| - /** Character stream */ |
19 |
| - private final CharStream charStream; |
| 18 | + /** Character stream */ |
| 19 | + private final CharStream charStream; |
20 | 20 |
|
21 |
| - public CaseInsensitiveCharStream(String sql) { |
22 |
| - this.charStream = CharStreams.fromString(sql); |
23 |
| - } |
| 21 | + public CaseInsensitiveCharStream(String sql) { |
| 22 | + this.charStream = CharStreams.fromString(sql); |
| 23 | + } |
24 | 24 |
|
25 |
| - @Override |
26 |
| - public String getText(Interval interval) { |
27 |
| - return charStream.getText(interval); |
28 |
| - } |
| 25 | + @Override |
| 26 | + public String getText(Interval interval) { |
| 27 | + return charStream.getText(interval); |
| 28 | + } |
29 | 29 |
|
30 |
| - @Override |
31 |
| - public void consume() { |
32 |
| - charStream.consume(); |
33 |
| - } |
| 30 | + @Override |
| 31 | + public void consume() { |
| 32 | + charStream.consume(); |
| 33 | + } |
34 | 34 |
|
35 |
| - @Override |
36 |
| - public int LA(int i) { |
37 |
| - int c = charStream.LA(i); |
38 |
| - if (c <= 0) { |
39 |
| - return c; |
40 |
| - } |
41 |
| - return Character.toUpperCase(c); |
| 35 | + @Override |
| 36 | + public int LA(int i) { |
| 37 | + int c = charStream.LA(i); |
| 38 | + if (c <= 0) { |
| 39 | + return c; |
42 | 40 | }
|
| 41 | + return Character.toUpperCase(c); |
| 42 | + } |
43 | 43 |
|
44 |
| - @Override |
45 |
| - public int mark() { |
46 |
| - return charStream.mark(); |
47 |
| - } |
| 44 | + @Override |
| 45 | + public int mark() { |
| 46 | + return charStream.mark(); |
| 47 | + } |
48 | 48 |
|
49 |
| - @Override |
50 |
| - public void release(int marker) { |
51 |
| - charStream.release(marker); |
52 |
| - } |
| 49 | + @Override |
| 50 | + public void release(int marker) { |
| 51 | + charStream.release(marker); |
| 52 | + } |
53 | 53 |
|
54 |
| - @Override |
55 |
| - public int index() { |
56 |
| - return charStream.index(); |
57 |
| - } |
| 54 | + @Override |
| 55 | + public int index() { |
| 56 | + return charStream.index(); |
| 57 | + } |
58 | 58 |
|
59 |
| - @Override |
60 |
| - public void seek(int index) { |
61 |
| - charStream.seek(index); |
62 |
| - } |
| 59 | + @Override |
| 60 | + public void seek(int index) { |
| 61 | + charStream.seek(index); |
| 62 | + } |
63 | 63 |
|
64 |
| - @Override |
65 |
| - public int size() { |
66 |
| - return charStream.size(); |
67 |
| - } |
| 64 | + @Override |
| 65 | + public int size() { |
| 66 | + return charStream.size(); |
| 67 | + } |
68 | 68 |
|
69 |
| - @Override |
70 |
| - public String getSourceName() { |
71 |
| - return charStream.getSourceName(); |
72 |
| - } |
| 69 | + @Override |
| 70 | + public String getSourceName() { |
| 71 | + return charStream.getSourceName(); |
| 72 | + } |
73 | 73 | }
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