Clover icon

Coverage Report

  1. Project Clover database Wed Dec 3 2025 17:03:17 GMT
  2. Package com.stevesoft.pat

File StrPos.java

 

Coverage histogram

../../../img/srcFileCovDistChart9.png
13% of files have more coverage

Code metrics

20
53
13
1
192
127
28
0.53
4.08
13
2.15

Classes

Class Line # Actions
StrPos 17 53 28
0.837209383.7%
 

Contributing tests

This file is covered by 87 tests. .

Source view

1    //
2    // This software is now distributed according to
3    // the Lesser Gnu Public License. Please see
4    // http://www.gnu.org/copyleft/lesser.txt for
5    // the details.
6    // -- Happy Computing!
7    //
8    package com.stevesoft.pat;
9   
10    /**
11    Shareware: package pat
12    <a href="copyright.html">Copyright 2001, Steven R. Brandt</a>
13    */
14    /**
15    * StrPos is used internally by regex to parse the regular expression.
16    */
 
17    public class StrPos
18    {
19    String s;
20   
21    int pos;
22   
23    /** Return the position in the string pointed to */
 
24  0 toggle public int pos()
25    {
26  0 return pos;
27    }
28   
29    /** This contains the escape character, which is \ by default. */
30    public char esc = Pattern.ESC;
31   
32    char c;
33   
34    /** Returns the current, possibly escaped, character. */
 
35  0 toggle public char thisChar()
36    {
37  0 return c;
38    }
39   
40    boolean dontMatch, eos;
41   
42    /** tell whether we are at end of string */
 
43  0 toggle public boolean eos()
44    {
45  0 return eos;
46    }
47   
48    /** initialize a StrPos from another StrPos. */
 
49  79468 toggle public StrPos(StrPos sp)
50    {
51  79468 dup(sp);
52    }
53   
54    /** copy a StrPos from sp to this. */
 
55  79560 toggle public void dup(StrPos sp)
56    {
57  79560 s = sp.s;
58  79560 pos = sp.pos;
59  79560 c = sp.c;
60  79560 dontMatch = sp.dontMatch;
61  79560 eos = sp.eos;
62    }
63   
64    /**
65    * Initialize a StrPos by giving it a String, and a position within the
66    * String.
67    */
 
68  4564 toggle public StrPos(String s, int pos)
69    {
70  4564 this.s = s;
71  4564 this.pos = pos - 1;
72  4564 inc();
73    }
74   
75    /**
76    * Advance the place where StrPos points within the String. Counts a backslash
77    * as part of the next character.
78    */
 
79  69723 toggle public StrPos inc()
80    {
81  69723 pos++;
82  69723 if (pos >= s.length())
83    {
84  2490 eos = true;
85  2490 return this;
86    }
87  67233 eos = false;
88  67233 c = s.charAt(pos);
89  67233 if (c == esc && pos + 1 < s.length())
90    {
91  4953 pos++;
92  4953 c = s.charAt(pos);
93  4953 if (c != esc)
94    {
95  4945 dontMatch = true;
96    }
97    else
98    {
99  8 dontMatch = false;
100    }
101    }
102    else
103    {
104  62280 dontMatch = false;
105    }
106  67233 return this;
107    }
108   
109    /**
110    * Compare the (possibly escaped) character pointed to by StrPos. Return true
111    * if they are the same, but lways return if character pointed to is escaped.
112    */
 
113  194395 toggle public boolean match(char ch)
114    {
115  194395 if (dontMatch || eos)
116    {
117  18440 return false;
118    }
119  175955 return c == ch;
120    }
121   
122    /** As match, but only matches if the character is escaped. */
 
123  157475 toggle public boolean escMatch(char ch)
124    {
125  157475 if (!dontMatch || eos)
126    {
127  144636 return false;
128    }
129  12839 return c == ch;
130    }
131   
132    /**
133    * Returns true if the current character is escaped (preceeded by "\").
134    */
 
135  0 toggle public boolean escaped()
136    {
137  0 return dontMatch;
138    }
139   
140    /**
141    * Increment the string pointer by each character in
142    *
143    * <pre>
144    * st
145    * </pre>
146    *
147    * that matches a non-escaped character.
148    */
 
149  56248 toggle public boolean incMatch(String st)
150    {
151  56248 StrPos sp = new StrPos(this);
152  56248 int i;
153  66284 for (i = 0; i < st.length(); i++)
154    {
155  66248 if (!sp.match(st.charAt(i)))
156    {
157  56212 return false;
158    }
159  10036 sp.inc();
160    }
161  36 dup(sp);
162  36 return true;
163    }
164   
165    /** Read in an integer. */
 
166  56 toggle public patInt getPatInt()
167    {
168  56 if (incMatch("inf"))
169    {
170  0 return new patInf();
171    }
172  56 int i, cnt = 0;
173  56 StrPos sp = new StrPos(this);
174  127 for (i = 0; !sp.eos && sp.c >= '0' && sp.c <= '9'; i++)
175    {
176  71 cnt = 10 * cnt + sp.c - '0';
177  71 sp.inc();
178    }
179  56 if (i == 0)
180    {
181  0 return null;
182    }
183  56 dup(sp);
184  56 return new patInt(cnt);
185    }
186   
187    /** get the string that we are processing. */
 
188  0 toggle public String getString()
189    {
190  0 return s;
191    }
192    };
  • Report generated by OpenClover v 4.4.1 on Wed Dec 3 2025 17:13:21 GMT using coverage data from Wed Dec 3 2025 17:13:06 GMT.
  • OpenClover is free and open-source software.