1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
#ifndef EXPAND_H
#define EXPAND_H
using namespace std;
#include <string>
#include <sys/types.h>
#include <regex.h>
class NamePattern;
// This class stores a set of patterns to match and the replacement data for
// each pattern.
class NameExpand
{
public:
// Read the file with the specified name and parse it as a list of
// expansions to perform.
NameExpand(const char *filename);
// expand the input to a random output based on our replacement patterns.
int expand(string &output, const string &input, bool sequential = false);
private:
// past the end of the sequence
bool m_no_seq;
NamePattern *m_names;
NameExpand(const NameExpand&);
NameExpand & operator=(const NameExpand&);
};
// This class stores a pattern to match and the replacement data.
// It also can have a pointer to another NamePattern, if so it will search
// recursively if it's pattern is not matched.
class NamePattern
{
public:
// match is a regular expression that input string should match.
// replace is the pattern for replacing. An unescaped (escape is back-slash
// '.' will mean not to change that character. Otherwise it's either a
// single character to replace it with, or a list of characters inside
// '[' and ']'. Ranges can be denoted with a hyphen as usual for globbing.
NamePattern(const char *match, const char *replace);
~NamePattern();
// expand the input to a random output based on our replacement pattern (if
// our regex is matched). If not then call recursively if we have a next
// NamePattern.
int expand(string &output, const string &input, bool sequential = false);
// Add the next pattern to the list.
void AddNext(NamePattern *np) { m_next = np; }
private:
// The pattern we are matching. Not actually used after startup.
const char *m_match;
// The pattern we replace with. Again not used other than diagnostics
// after startup.
const char *m_replace;
// The number of elements in the arrays == characters to replace
int m_conv_len;
// The compiled regular expression for matching.
regex_t m_match_regex;
// The array of strings used for conversion. For every character position
// that is to be changed there will be a pointer in this array (NULL means
// no change). Each character in each string is a random character to be
// used for replacement. If a character happens to occur twice then it will
// be twice as likely to occur in output.
char **m_convert;
// The length of the strings above. Saves lots of strlen() calls.
int *m_conv_item_len;
// The next number to be used for each element
int *m_next_value;
// past the end of the sequence
bool m_no_seq;
// Pointer to the next pattern (or NULL).
NamePattern *m_next;
NamePattern(const NamePattern&);
NamePattern & operator=(const NamePattern&);
};
#endif
|
