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| package net.sourceforge.pmd.cpd.cppast; |
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| public class SimpleCharStream |
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10 |
| { |
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11 |
| public static final boolean staticFlag = true; |
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12 |
| static int bufsize; |
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13 |
| static int available; |
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14 |
| static int tokenBegin; |
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15 |
| static public int bufpos = -1; |
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16 |
| static protected int bufline[]; |
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17 |
| static protected int bufcolumn[]; |
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18 |
| |
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19 |
| static protected int column = 0; |
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20 |
| static protected int line = 1; |
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21 |
| |
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22 |
| static protected boolean prevCharIsCR = false; |
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23 |
| static protected boolean prevCharIsLF = false; |
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24 |
| |
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25 |
| static protected java.io.Reader inputStream; |
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26 |
| |
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27 |
| static protected char[] buffer; |
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28 |
| static protected int maxNextCharInd = 0; |
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29 |
| static protected int inBuf = 0; |
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30 |
| static protected int tabSize = 8; |
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31 |
| |
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32 |
0
| static protected void setTabSize(int i) { tabSize = i; }
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33 |
0
| static protected int getTabSize(int i) { return tabSize; }
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34 |
| |
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35 |
| |
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36 |
0
| static protected void ExpandBuff(boolean wrapAround)
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37 |
| { |
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38 |
0
| char[] newbuffer = new char[bufsize + 2048];
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39 |
0
| int newbufline[] = new int[bufsize + 2048];
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40 |
0
| int newbufcolumn[] = new int[bufsize + 2048];
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41 |
| |
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42 |
0
| try
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43 |
| { |
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44 |
0
| if (wrapAround)
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45 |
| { |
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46 |
0
| System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
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47 |
0
| System.arraycopy(buffer, 0, newbuffer,
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48 |
| bufsize - tokenBegin, bufpos); |
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49 |
0
| buffer = newbuffer;
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50 |
| |
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51 |
0
| System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
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52 |
0
| System.arraycopy(bufline, 0, newbufline, bufsize - tokenBegin, bufpos);
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53 |
0
| bufline = newbufline;
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54 |
| |
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55 |
0
| System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
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56 |
0
| System.arraycopy(bufcolumn, 0, newbufcolumn, bufsize - tokenBegin, bufpos);
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57 |
0
| bufcolumn = newbufcolumn;
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58 |
| |
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59 |
0
| maxNextCharInd = (bufpos += (bufsize - tokenBegin));
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|
60 |
| } |
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61 |
| else |
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62 |
| { |
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63 |
0
| System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
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64 |
0
| buffer = newbuffer;
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65 |
| |
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66 |
0
| System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
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67 |
0
| bufline = newbufline;
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68 |
| |
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69 |
0
| System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
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70 |
0
| bufcolumn = newbufcolumn;
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71 |
| |
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72 |
0
| maxNextCharInd = (bufpos -= tokenBegin);
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73 |
| } |
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74 |
| } |
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75 |
| catch (Throwable t) |
|
76 |
| { |
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77 |
0
| throw new Error(t.getMessage());
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|
78 |
| } |
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79 |
| |
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80 |
| |
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81 |
0
| bufsize += 2048;
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82 |
0
| available = bufsize;
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83 |
0
| tokenBegin = 0;
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|
84 |
| } |
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85 |
| |
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86 |
12
| static protected void FillBuff() throws java.io.IOException
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|
87 |
| { |
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88 |
12
| if (maxNextCharInd == available)
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|
89 |
| { |
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90 |
0
| if (available == bufsize)
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91 |
| { |
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92 |
0
| if (tokenBegin > 2048)
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93 |
| { |
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94 |
0
| bufpos = maxNextCharInd = 0;
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95 |
0
| available = tokenBegin;
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96 |
| } |
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97 |
0
| else if (tokenBegin < 0)
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98 |
0
| bufpos = maxNextCharInd = 0;
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|
99 |
| else |
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100 |
0
| ExpandBuff(false);
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|
101 |
| } |
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102 |
0
| else if (available > tokenBegin)
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103 |
0
| available = bufsize;
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104 |
0
| else if ((tokenBegin - available) < 2048)
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105 |
0
| ExpandBuff(true);
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106 |
| else |
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107 |
0
| available = tokenBegin;
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|
108 |
| } |
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109 |
| |
|
110 |
12
| int i;
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111 |
12
| try {
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|
112 |
?
| if ((i = inputStream.read(buffer, maxNextCharInd,
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|
113 |
| available - maxNextCharInd)) == -1) |
|
114 |
| { |
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115 |
4
| inputStream.close();
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116 |
4
| throw new java.io.IOException();
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|
117 |
| } |
|
118 |
| else |
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119 |
4
| maxNextCharInd += i;
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120 |
4
| return;
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|
121 |
| } |
|
122 |
| catch(java.io.IOException e) { |
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123 |
8
| --bufpos;
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124 |
8
| backup(0);
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125 |
8
| if (tokenBegin == -1)
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126 |
8
| tokenBegin = bufpos;
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127 |
8
| throw e;
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|
128 |
| } |
|
129 |
| } |
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130 |
| |
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131 |
80
| static public char BeginToken() throws java.io.IOException
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|
132 |
| { |
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133 |
80
| tokenBegin = -1;
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134 |
80
| char c = readChar();
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135 |
72
| tokenBegin = bufpos;
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136 |
| |
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137 |
72
| return c;
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138 |
| } |
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139 |
| |
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140 |
225
| static protected void UpdateLineColumn(char c)
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|
141 |
| { |
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142 |
225
| column++;
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143 |
| |
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144 |
225
| if (prevCharIsLF)
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145 |
| { |
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146 |
7
| prevCharIsLF = false;
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147 |
7
| line += (column = 1);
|
|
148 |
| } |
|
149 |
218
| else if (prevCharIsCR)
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|
150 |
| { |
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151 |
0
| prevCharIsCR = false;
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152 |
0
| if (c == '\n')
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153 |
| { |
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154 |
0
| prevCharIsLF = true;
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|
155 |
| } |
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156 |
| else |
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157 |
0
| line += (column = 1);
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|
158 |
| } |
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159 |
| |
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160 |
225
| switch (c)
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|
161 |
| { |
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162 |
0
| case '\r' :
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163 |
0
| prevCharIsCR = true;
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164 |
0
| break;
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165 |
11
| case '\n' :
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166 |
11
| prevCharIsLF = true;
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|
167 |
11
| break;
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168 |
0
| case '\t' :
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|
169 |
0
| column--;
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|
170 |
0
| column += (tabSize - (column % tabSize));
|
|
171 |
0
| break;
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172 |
214
| default :
|
|
173 |
214
| break;
|
|
174 |
| } |
|
175 |
| |
|
176 |
225
| bufline[bufpos] = line;
|
|
177 |
225
| bufcolumn[bufpos] = column;
|
|
178 |
| } |
|
179 |
| |
|
180 |
252
| static public char readChar() throws java.io.IOException
|
|
181 |
| { |
|
182 |
252
| if (inBuf > 0)
|
|
183 |
| { |
|
184 |
19
| --inBuf;
|
|
185 |
| |
|
186 |
19
| if (++bufpos == bufsize)
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|
187 |
0
| bufpos = 0;
|
|
188 |
| |
|
189 |
19
| return buffer[bufpos];
|
|
190 |
| } |
|
191 |
| |
|
192 |
233
| if (++bufpos >= maxNextCharInd)
|
|
193 |
12
| FillBuff();
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|
194 |
| |
|
195 |
225
| char c = buffer[bufpos];
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|
196 |
| |
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197 |
225
| UpdateLineColumn(c);
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198 |
225
| return (c);
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|
199 |
| } |
|
200 |
| |
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201 |
| |
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202 |
| |
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203 |
| |
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204 |
| |
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205 |
| |
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206 |
0
| static public int getColumn() {
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207 |
0
| return bufcolumn[bufpos];
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|
208 |
| } |
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209 |
| |
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210 |
| |
|
211 |
| |
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212 |
| |
|
213 |
| |
|
214 |
| |
|
215 |
0
| static public int getLine() {
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216 |
0
| return bufline[bufpos];
|
|
217 |
| } |
|
218 |
| |
|
219 |
43
| static public int getEndColumn() {
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|
220 |
43
| return bufcolumn[bufpos];
|
|
221 |
| } |
|
222 |
| |
|
223 |
43
| static public int getEndLine() {
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|
224 |
43
| return bufline[bufpos];
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|
225 |
| } |
|
226 |
| |
|
227 |
43
| static public int getBeginColumn() {
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|
228 |
43
| return bufcolumn[tokenBegin];
|
|
229 |
| } |
|
230 |
| |
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231 |
43
| static public int getBeginLine() {
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232 |
43
| return bufline[tokenBegin];
|
|
233 |
| } |
|
234 |
| |
|
235 |
71
| static public void backup(int amount) {
|
|
236 |
| |
|
237 |
71
| inBuf += amount;
|
|
238 |
71
| if ((bufpos -= amount) < 0)
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|
239 |
0
| bufpos += bufsize;
|
|
240 |
| } |
|
241 |
| |
|
242 |
1
| public SimpleCharStream(java.io.Reader dstream, int startline,
|
|
243 |
| int startcolumn, int buffersize) |
|
244 |
| { |
|
245 |
1
| if (inputStream != null)
|
|
246 |
0
| throw new Error("\n ERROR: Second call to the constructor of a static SimpleCharStream. You must\n" +
|
|
247 |
| " either use ReInit() or set the JavaCC option STATIC to false\n" + |
|
248 |
| " during the generation of this class."); |
|
249 |
1
| inputStream = dstream;
|
|
250 |
1
| line = startline;
|
|
251 |
1
| column = startcolumn - 1;
|
|
252 |
| |
|
253 |
1
| available = bufsize = buffersize;
|
|
254 |
1
| buffer = new char[buffersize];
|
|
255 |
1
| bufline = new int[buffersize];
|
|
256 |
1
| bufcolumn = new int[buffersize];
|
|
257 |
| } |
|
258 |
| |
|
259 |
0
| public SimpleCharStream(java.io.Reader dstream, int startline,
|
|
260 |
| int startcolumn) |
|
261 |
| { |
|
262 |
0
| this(dstream, startline, startcolumn, 4096);
|
|
263 |
| } |
|
264 |
| |
|
265 |
1
| public SimpleCharStream(java.io.Reader dstream)
|
|
266 |
| { |
|
267 |
1
| this(dstream, 1, 1, 4096);
|
|
268 |
| } |
|
269 |
3
| public void ReInit(java.io.Reader dstream, int startline,
|
|
270 |
| int startcolumn, int buffersize) |
|
271 |
| { |
|
272 |
3
| inputStream = dstream;
|
|
273 |
3
| line = startline;
|
|
274 |
3
| column = startcolumn - 1;
|
|
275 |
| |
|
276 |
3
| if (buffer == null || buffersize != buffer.length)
|
|
277 |
| { |
|
278 |
0
| available = bufsize = buffersize;
|
|
279 |
0
| buffer = new char[buffersize];
|
|
280 |
0
| bufline = new int[buffersize];
|
|
281 |
0
| bufcolumn = new int[buffersize];
|
|
282 |
| } |
|
283 |
3
| prevCharIsLF = prevCharIsCR = false;
|
|
284 |
3
| tokenBegin = inBuf = maxNextCharInd = 0;
|
|
285 |
3
| bufpos = -1;
|
|
286 |
| } |
|
287 |
| |
|
288 |
0
| public void ReInit(java.io.Reader dstream, int startline,
|
|
289 |
| int startcolumn) |
|
290 |
| { |
|
291 |
0
| ReInit(dstream, startline, startcolumn, 4096);
|
|
292 |
| } |
|
293 |
| |
|
294 |
3
| public void ReInit(java.io.Reader dstream)
|
|
295 |
| { |
|
296 |
3
| ReInit(dstream, 1, 1, 4096);
|
|
297 |
| } |
|
298 |
0
| public SimpleCharStream(java.io.InputStream dstream, String encoding, int startline,
|
|
299 |
| int startcolumn, int buffersize) throws java.io.UnsupportedEncodingException |
|
300 |
| { |
|
301 |
0
| this(encoding == null ? new java.io.InputStreamReader(dstream) : new java.io.InputStreamReader(dstream, encoding), startline, startcolumn, buffersize);
|
|
302 |
| } |
|
303 |
| |
|
304 |
0
| public SimpleCharStream(java.io.InputStream dstream, int startline,
|
|
305 |
| int startcolumn, int buffersize) |
|
306 |
| { |
|
307 |
0
| this(new java.io.InputStreamReader(dstream), startline, startcolumn, buffersize);
|
|
308 |
| } |
|
309 |
| |
|
310 |
0
| public SimpleCharStream(java.io.InputStream dstream, String encoding, int startline,
|
|
311 |
| int startcolumn) throws java.io.UnsupportedEncodingException |
|
312 |
| { |
|
313 |
0
| this(dstream, encoding, startline, startcolumn, 4096);
|
|
314 |
| } |
|
315 |
| |
|
316 |
0
| public SimpleCharStream(java.io.InputStream dstream, int startline,
|
|
317 |
| int startcolumn) |
|
318 |
| { |
|
319 |
0
| this(dstream, startline, startcolumn, 4096);
|
|
320 |
| } |
|
321 |
| |
|
322 |
0
| public SimpleCharStream(java.io.InputStream dstream, String encoding) throws java.io.UnsupportedEncodingException
|
|
323 |
| { |
|
324 |
0
| this(dstream, encoding, 1, 1, 4096);
|
|
325 |
| } |
|
326 |
| |
|
327 |
0
| public SimpleCharStream(java.io.InputStream dstream)
|
|
328 |
| { |
|
329 |
0
| this(dstream, 1, 1, 4096);
|
|
330 |
| } |
|
331 |
| |
|
332 |
0
| public void ReInit(java.io.InputStream dstream, String encoding, int startline,
|
|
333 |
| int startcolumn, int buffersize) throws java.io.UnsupportedEncodingException |
|
334 |
| { |
|
335 |
0
| ReInit(encoding == null ? new java.io.InputStreamReader(dstream) : new java.io.InputStreamReader(dstream, encoding), startline, startcolumn, buffersize);
|
|
336 |
| } |
|
337 |
| |
|
338 |
0
| public void ReInit(java.io.InputStream dstream, int startline,
|
|
339 |
| int startcolumn, int buffersize) |
|
340 |
| { |
|
341 |
0
| ReInit(new java.io.InputStreamReader(dstream), startline, startcolumn, buffersize);
|
|
342 |
| } |
|
343 |
| |
|
344 |
0
| public void ReInit(java.io.InputStream dstream, String encoding) throws java.io.UnsupportedEncodingException
|
|
345 |
| { |
|
346 |
0
| ReInit(dstream, encoding, 1, 1, 4096);
|
|
347 |
| } |
|
348 |
| |
|
349 |
0
| public void ReInit(java.io.InputStream dstream)
|
|
350 |
| { |
|
351 |
0
| ReInit(dstream, 1, 1, 4096);
|
|
352 |
| } |
|
353 |
0
| public void ReInit(java.io.InputStream dstream, String encoding, int startline,
|
|
354 |
| int startcolumn) throws java.io.UnsupportedEncodingException |
|
355 |
| { |
|
356 |
0
| ReInit(dstream, encoding, startline, startcolumn, 4096);
|
|
357 |
| } |
|
358 |
0
| public void ReInit(java.io.InputStream dstream, int startline,
|
|
359 |
| int startcolumn) |
|
360 |
| { |
|
361 |
0
| ReInit(dstream, startline, startcolumn, 4096);
|
|
362 |
| } |
|
363 |
10
| static public String GetImage()
|
|
364 |
| { |
|
365 |
10
| if (bufpos >= tokenBegin)
|
|
366 |
10
| return new String(buffer, tokenBegin, bufpos - tokenBegin + 1);
|
|
367 |
| else |
|
368 |
0
| return new String(buffer, tokenBegin, bufsize - tokenBegin) +
|
|
369 |
| new String(buffer, 0, bufpos + 1); |
|
370 |
| } |
|
371 |
| |
|
372 |
0
| static public char[] GetSuffix(int len)
|
|
373 |
| { |
|
374 |
0
| char[] ret = new char[len];
|
|
375 |
| |
|
376 |
0
| if ((bufpos + 1) >= len)
|
|
377 |
0
| System.arraycopy(buffer, bufpos - len + 1, ret, 0, len);
|
|
378 |
| else |
|
379 |
| { |
|
380 |
0
| System.arraycopy(buffer, bufsize - (len - bufpos - 1), ret, 0,
|
|
381 |
| len - bufpos - 1); |
|
382 |
0
| System.arraycopy(buffer, 0, ret, len - bufpos - 1, bufpos + 1);
|
|
383 |
| } |
|
384 |
| |
|
385 |
0
| return ret;
|
|
386 |
| } |
|
387 |
| |
|
388 |
0
| static public void Done()
|
|
389 |
| { |
|
390 |
0
| buffer = null;
|
|
391 |
0
| bufline = null;
|
|
392 |
0
| bufcolumn = null;
|
|
393 |
| } |
|
394 |
| |
|
395 |
| |
|
396 |
| |
|
397 |
| |
|
398 |
0
| static public void adjustBeginLineColumn(int newLine, int newCol)
|
|
399 |
| { |
|
400 |
0
| int start = tokenBegin;
|
|
401 |
0
| int len;
|
|
402 |
| |
|
403 |
0
| if (bufpos >= tokenBegin)
|
|
404 |
| { |
|
405 |
0
| len = bufpos - tokenBegin + inBuf + 1;
|
|
406 |
| } |
|
407 |
| else |
|
408 |
| { |
|
409 |
0
| len = bufsize - tokenBegin + bufpos + 1 + inBuf;
|
|
410 |
| } |
|
411 |
| |
|
412 |
0
| int i = 0, j = 0, k = 0;
|
|
413 |
0
| int nextColDiff = 0, columnDiff = 0;
|
|
414 |
| |
|
415 |
0
| while (i < len &&
|
|
416 |
| bufline[j = start % bufsize] == bufline[k = ++start % bufsize]) |
|
417 |
| { |
|
418 |
0
| bufline[j] = newLine;
|
|
419 |
0
| nextColDiff = columnDiff + bufcolumn[k] - bufcolumn[j];
|
|
420 |
0
| bufcolumn[j] = newCol + columnDiff;
|
|
421 |
0
| columnDiff = nextColDiff;
|
|
422 |
0
| i++;
|
|
423 |
| } |
|
424 |
| |
|
425 |
0
| if (i < len)
|
|
426 |
| { |
|
427 |
0
| bufline[j] = newLine++;
|
|
428 |
0
| bufcolumn[j] = newCol + columnDiff;
|
|
429 |
| |
|
430 |
0
| while (i++ < len)
|
|
431 |
| { |
|
432 |
0
| if (bufline[j = start % bufsize] != bufline[++start % bufsize])
|
|
433 |
0
| bufline[j] = newLine++;
|
|
434 |
| else |
|
435 |
0
| bufline[j] = newLine;
|
|
436 |
| } |
|
437 |
| } |
|
438 |
| |
|
439 |
0
| line = bufline[j];
|
|
440 |
0
| column = bufcolumn[j];
|
|
441 |
| } |
|
442 |
| |
|
443 |
| } |