[6785] | 1 | /**************************************************************** |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one * |
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| 3 | * or more contributor license agreements. See the NOTICE file * |
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| 4 | * distributed with this work for additional information * |
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| 5 | * regarding copyright ownership. The ASF licenses this file * |
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| 6 | * to you under the Apache License, Version 2.0 (the * |
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| 7 | * "License"); you may not use this file except in compliance * |
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| 8 | * with the License. You may obtain a copy of the License at * |
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| 9 | * * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 * |
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| 11 | * * |
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| 12 | * Unless required by applicable law or agreed to in writing, * |
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| 13 | * software distributed under the License is distributed on an * |
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| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
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| 15 | * KIND, either express or implied. See the License for the * |
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| 16 | * specific language governing permissions and limitations * |
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| 17 | * under the License. * |
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| 18 | ****************************************************************/ |
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| 19 | |
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| 20 | options { |
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| 21 | static=false; |
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| 22 | JDK_VERSION = "1.5"; |
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| 23 | OUTPUT_DIRECTORY = "../../../../../../../../../target/generated-sources/javacc"; |
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| 24 | } |
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| 25 | |
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| 26 | PARSER_BEGIN(MimeVersionParser) |
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| 27 | /**************************************************************** |
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| 28 | * Licensed to the Apache Software Foundation (ASF) under one * |
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| 29 | * or more contributor license agreements. See the NOTICE file * |
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| 30 | * distributed with this work for additional information * |
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| 31 | * regarding copyright ownership. The ASF licenses this file * |
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| 32 | * to you under the Apache License, Version 2.0 (the * |
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| 33 | * "License"); you may not use this file except in compliance * |
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| 34 | * with the License. You may obtain a copy of the License at * |
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| 35 | * * |
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| 36 | * http://www.apache.org/licenses/LICENSE-2.0 * |
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| 37 | * * |
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| 38 | * Unless required by applicable law or agreed to in writing, * |
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| 39 | * software distributed under the License is distributed on an * |
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| 40 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
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| 41 | * KIND, either express or implied. See the License for the * |
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| 42 | * specific language governing permissions and limitations * |
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| 43 | * under the License. * |
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| 44 | ****************************************************************/ |
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| 45 | package org.apache.james.mime4j.field.mimeversion.parser; |
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| 46 | |
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| 47 | public class MimeVersionParser { |
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| 48 | public static final int INITIAL_VERSION_VALUE = -1; |
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| 49 | private int major=INITIAL_VERSION_VALUE; |
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| 50 | private int minor=INITIAL_VERSION_VALUE; |
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| 51 | |
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| 52 | public int getMinorVersion() { |
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| 53 | return minor; |
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| 54 | } |
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| 55 | |
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| 56 | public int getMajorVersion() { |
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| 57 | return major; |
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| 58 | } |
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| 59 | } |
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| 60 | PARSER_END(MimeVersionParser) |
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| 61 | |
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| 62 | |
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| 63 | void parseLine() : |
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| 64 | {} |
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| 65 | { |
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| 66 | parse() ["\r"] "\n" |
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| 67 | } |
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| 68 | |
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| 69 | void parseAll() : |
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| 70 | {} |
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| 71 | { |
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| 72 | parse() <EOF> |
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| 73 | } |
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| 74 | |
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| 75 | void parse() : |
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| 76 | { |
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| 77 | Token major; |
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| 78 | Token minor; |
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| 79 | } |
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| 80 | { |
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| 81 | major=<DIGITS> <DOT> minor=<DIGITS> |
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| 82 | { |
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| 83 | try { |
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| 84 | this.major = Integer.parseInt(major.image); |
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| 85 | this.minor = Integer.parseInt(minor.image); |
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| 86 | } catch (NumberFormatException e) { |
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| 87 | throw new ParseException(e.getMessage()); |
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| 88 | } |
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| 89 | } |
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| 90 | } |
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| 91 | |
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| 92 | SPECIAL_TOKEN : |
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| 93 | { |
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| 94 | < WS: ( [" ", "\t", "\r", "\n"] )+ > |
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| 95 | } |
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| 96 | |
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| 97 | TOKEN_MGR_DECLS : |
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| 98 | { |
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| 99 | // Keeps track of how many levels of comment nesting |
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| 100 | // we've encountered. This is only used when the 2nd |
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| 101 | // level is reached, for example ((this)), not (this). |
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| 102 | // This is because the outermost level must be treated |
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| 103 | // specially anyway, because the outermost ")" has a |
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| 104 | // different token type than inner ")" instances. |
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| 105 | int commentNest; |
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| 106 | } |
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| 107 | |
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| 108 | |
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| 109 | MORE : |
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| 110 | { |
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| 111 | // starts a comment |
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| 112 | "(" : INCOMMENT |
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| 113 | } |
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| 114 | |
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| 115 | <INCOMMENT> |
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| 116 | SKIP : |
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| 117 | { |
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| 118 | // ends a comment |
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| 119 | < COMMENT: ")" > : DEFAULT |
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| 120 | // if this is ever changed to not be a SKIP, need |
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| 121 | // to make sure matchedToken.token = token.toString() |
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| 122 | // is called. |
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| 123 | } |
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| 124 | |
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| 125 | <INCOMMENT> |
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| 126 | MORE : |
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| 127 | { |
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| 128 | < <QUOTEDPAIR>> { image.deleteCharAt(image.length() - 2); } |
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| 129 | | "(" { commentNest = 1; } : NESTED_COMMENT |
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| 130 | | < <ANY>> |
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| 131 | } |
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| 132 | |
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| 133 | <NESTED_COMMENT> |
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| 134 | MORE : |
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| 135 | { |
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| 136 | < <QUOTEDPAIR>> { image.deleteCharAt(image.length() - 2); } |
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| 137 | | "(" { ++commentNest; } |
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| 138 | | ")" { --commentNest; if (commentNest == 0) SwitchTo(INCOMMENT); } |
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| 139 | | < <ANY>> |
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| 140 | } |
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| 141 | // QUOTED STRINGS |
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| 142 | |
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| 143 | MORE : |
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| 144 | { |
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| 145 | "\"" { image.deleteCharAt(image.length() - 1); } : INQUOTEDSTRING |
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| 146 | } |
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| 147 | |
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| 148 | <INQUOTEDSTRING> |
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| 149 | MORE : |
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| 150 | { |
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| 151 | < <QUOTEDPAIR>> { image.deleteCharAt(image.length() - 2); } |
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| 152 | | < (~["\"", "\\"])+ > |
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| 153 | } |
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| 154 | |
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| 155 | <INQUOTEDSTRING> |
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| 156 | TOKEN : |
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| 157 | { |
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| 158 | < QUOTEDSTRING: "\"" > { matchedToken.image = image.substring(0, image.length() - 1); } : DEFAULT |
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| 159 | } |
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| 160 | |
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| 161 | TOKEN : |
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| 162 | { |
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| 163 | < DIGITS: ( ["0"-"9"] )+ > |
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| 164 | } |
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| 165 | |
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| 166 | TOKEN : |
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| 167 | { |
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| 168 | < DOT: "." > |
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| 169 | } |
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| 170 | |
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| 171 | <*> |
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| 172 | TOKEN : |
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| 173 | { |
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| 174 | < #QUOTEDPAIR: "\\" <ANY> > |
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| 175 | | < #ANY: ~[] > |
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| 176 | } |
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