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1
17 package org.eclipse.emf.codegen.jet;
18
19
20
21
24 public class JETCharDataGenerator
25 implements JETGenerator
26 {
27 protected static final String  FUNCTION_CALL_BEGIN = "stringBuffer.append(";
28 protected static final String FUNCTION_CALL_END = ");";
29 protected static final String NEW_LINE_BEGIN = "NL + ";
30 protected static final String NEW_LINE_MIDDLE = "\" + NL + \"";
31 protected static final String NEW_LINE_END = " + NL";
32
33 protected char[] characters;
34
35 public JETCharDataGenerator(char[] characters)
36 {
37 this.characters = characters;
38 }
39
40 public String generate()
41 {
42 StringBuffer stringBuffer = new StringBuffer (characters.length + 16);
43 stringBuffer.append(FUNCTION_CALL_BEGIN);
44 stringBuffer.append(generateCharData());
45 stringBuffer.append(FUNCTION_CALL_END);
46 return stringBuffer.toString();
47 }
48
49 protected String generateCharData()
50 {
51 StringBuffer stringBuffer = new StringBuffer ();
52 StringBuffer stringBufferTail = new StringBuffer ();
53 int limit = characters.length - 1;
54
55 buildEnd:
56 while (limit >= 0)
57 {
58 char ch = characters[limit];
59 switch (ch)
60 {
61 case '\r':
62 {
63 break;
64 }
65 case '\n':
66 {
67 stringBufferTail.append(NEW_LINE_END);
68 break;
69 }
70 default:
71 {
72 limit++;
73 break buildEnd;
74 }
75 }
76 limit--;
77 }
78
79 if (limit < 0)
80 {
81 if (stringBufferTail.length() == 0)
82 {
83 stringBuffer.append("\"\"");
84 }
85 else
86 {
87 stringBuffer.append(stringBufferTail.toString().substring(3));
88 }
89 }
90 else
91 {
92 int i = 0;
93 buildFront:
94 for (; i <= limit; i ++ )
95 {
96 char ch = characters[i];
97 switch (ch)
98 {
99 case '\r':
100 {
101 break;
102 }
103 case '\n':
104 {
105 stringBuffer.append(NEW_LINE_BEGIN);
106 break;
107 }
108 default:
109 {
110 break buildFront;
111 }
112 }
113 }
114
115 stringBuffer.append('"');
116 for (; i < limit; i++)
117 {
118 char ch = characters[i];
119 switch (ch)
120 {
121 case '"':
122 {
123 stringBuffer.append("\\\"");
124 break;
125 }
126 case '\\':
127 {
128 stringBuffer.append("\\\\");
129 break;
130 }
131 case '\r':
132 {
133 continue;
134 }
135 case '\n':
136 {
137 stringBuffer.append(NEW_LINE_MIDDLE);
138 break;
139 }
140 case '\t':
141 {
142 stringBuffer.append("\\t");
143 break;
144 }
145 default:
146 {
147 stringBuffer.append(ch);
148 }
149 }
150 }
151 stringBuffer.append('"');
152 stringBuffer.append(stringBufferTail.toString());
153 }
154 return stringBuffer.toString();
155 }
156 }
157 |
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