Clover coverage report - PMD - 3.7
Coverage timestamp: Wed May 31 2006 09:25:59 EDT

file stats: | LOC: | 139 |  | Methods: | 8
| NCLOC: | 114 |  | Classes: | 1

Source file | Conditionals | Statements | Methods | TOTAL

RubyTokenizer.java

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1 |  | /**
2 |  | * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
3 |  | * @authors: Zev Blut zb@ubit.com
4 |  | */
5 |  | package net.sourceforge.pmd.cpd;
6 |  |
7 |  | import java.util.List;
8 |  |
9 |  | public class RubyTokenizer implements Tokenizer {
10 |  | private boolean downcaseString = true;
11 |  |
12 | 0 | public void tokenize(SourceCode tokens, Tokens tokenEntries) {
13 | 0 | List code = tokens.getCode();
14 | 0 | for (int i = 0; i < code.size(); i++) {
15 | 0 | String currentLine = (String) code.get(i);
16 | 0 | int loc = 0;
17 | 0 | while (loc < currentLine.length()) {
18 | 0 | StringBuffer token = new StringBuffer();
19 | 0 | loc = getTokenFromLine(currentLine, token, loc);
20 | 0 | if (token.length() > 0 && !isIgnorableString(token.toString())) {
21 | 0 | if (downcaseString) {
22 | 0 | token = new StringBuffer(token.toString().toLowerCase());
23 |  | }
24 | 0 | tokenEntries.add(new TokenEntry(token.toString(),
25 |  | tokens.getFileName(),
26 |  | i + 1));
27 |  | }
28 |  | }
29 |  | }
30 | 0 | tokenEntries.add(TokenEntry.getEOF());
31 |  | }
32 |  |
33 | 0 | private int getTokenFromLine(String line, StringBuffer token, int loc) {
34 | 0 | for (int j = loc; j < line.length(); j++) {
35 | 0 | char tok = line.charAt(j);
36 | 0 | if (!Character.isWhitespace(tok) && !ignoreCharacter(tok)) {
37 | 0 | if (isComment(tok)) {
38 | 0 | if (token.length() > 0) {
39 | 0 | return j;
40 |  | } else {
41 | 0 | return getCommentToken(line, token, loc);
42 |  | }
43 | 0 | } else if (isString(tok)) {
44 | 0 | if (token.length() > 0) {
45 |  | //if (loc == lin
46 | 0 | return j; // we need to now parse the string as a seperate token.
47 |  | } else {
48 |  | // we are at the start of a string
49 | 0 | return parseString(line, token, j, tok);
50 |  | }
51 |  | } else {
52 | 0 | token.append(tok);
53 |  | }
54 |  | } else {
55 | 0 | if (token.length() > 0) {
56 | 0 | return j;
57 |  | }
58 |  | }
59 | 0 | loc = j;
60 |  | }
61 | 0 | return loc + 1;
62 |  | }
63 |  |
64 | 0 | private int parseString(String line, StringBuffer token, int loc, char stringType) {
65 | 0 | boolean escaped = false;
66 | 0 | boolean done = false;
67 |  | //System.out.println("Parsing String:" + stringType);
68 |  | //System.out.println("Starting loc:" + loc);
69 |  | // problem of strings that span multiple lines :-(
70 | 0 | char tok = ' '; // this will be replaced.
71 | 0 | while ((loc < line.length()) && !done) {
72 | 0 | tok = line.charAt(loc);
73 | 0 | if (escaped && tok == stringType) {
74 |  | // System.out.println("Found an escaped string");
75 | 0 | escaped = false;
76 | 0 | } else if (tok == stringType && (token.length() > 0)) {
77 |  | // we are done
78 |  | // System.out.println("Found an end string");
79 | 0 | done = true;
80 | 0 | } else if (tok == '\\') {
81 |  | // System.out.println("Found an escaped char");
82 | 0 | escaped = true;
83 |  | } else {
84 |  | // System.out.println("Adding char:" + tok + ";loc:" + loc);
85 | 0 | escaped = false;
86 |  | }
87 |  | //System.out.println("Adding char to String:" + token.toString());
88 | 0 | token.append(tok);
89 | 0 | loc++;
90 |  | }
91 | 0 | return loc + 1;
92 |  | }
93 |  |
94 | 0 | private boolean ignoreCharacter(char tok) {
95 | 0 | boolean result = false;
96 | 0 | switch (tok) {
97 | 0 | case '{':
98 | 0 | case '}':
99 | 0 | case '(':
100 | 0 | case ')':
101 | 0 | case ';':
102 | 0 | case ',':
103 | 0 | result = true;
104 | 0 | break;
105 | 0 | default :
106 | 0 | result = false;
107 |  | }
108 | 0 | return result;
109 |  | }
110 |  |
111 | 0 | private boolean isString(char tok) {
112 | 0 | boolean result = false;
113 | 0 | switch (tok) {
114 | 0 | case '\'':
115 | 0 | case '"':
116 | 0 | result = true;
117 | 0 | break;
118 | 0 | default:
119 | 0 | result = false;
120 |  | }
121 | 0 | return result;
122 |  | }
123 |  |
124 | 0 | private boolean isComment(char tok) {
125 | 0 | return tok == '#';
126 |  | }
127 |  |
128 | 0 | private int getCommentToken(String line, StringBuffer token, int loc) {
129 | 0 | while (loc < line.length()) {
130 | 0 | token.append(line.charAt(loc));
131 | 0 | loc++;
132 |  | }
133 | 0 | return loc;
134 |  | }
135 |  |
136 | 0 | private boolean isIgnorableString(String token) {
137 | 0 | return token == "do" || token == "end";
138 |  | }
139 |  | }