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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: configuration.cc,v 1.2 1998/07/09 05:12:33 jgg Exp $
/* ######################################################################
Configuration Class
This class provides a configuration file and command line parser
for a tree-oriented configuration environment. All runtime configuration
is stored in here.
##################################################################### */
/*}}}*/
// Include files /*{{{*/
#ifdef __GNUG__
#pragma implementation "pkglib/configuration.h"
#endif
#include <pkglib/configuration.h>
#include <strutl.h>
#include <stdio.h>
/*}}}*/
Configuration *_config = new Configuration;
// Configuration::Configuration - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
Configuration::Configuration()
{
Root = new Item;
}
/*}}}*/
// Configuration::Lookup - Lookup a single item /*{{{*/
// ---------------------------------------------------------------------
/* This will lookup a single item by name below another item. It is a
helper function for the main lookup function */
Configuration::Item *Configuration::Lookup(Item *Head,const char *S,
unsigned long Len,bool Create)
{
int Res = 1;
Item *I = Head->Child;
Item **Last = &Head->Child;
for (; I != 0; Last = &I->Next, I = I->Next)
if ((Res = stringcasecmp(I->Tag.begin(),I->Tag.end(),S,S + Len)) == 0)
break;
if (Res == 0)
return I;
if (Create == false)
return 0;
I = new Item;
I->Tag = string(S,Len);
I->Next = *Last;
I->Parent = Head;
*Last = I;
return I;
}
/*}}}*/
// Configuration::Lookup - Lookup a fully scoped item /*{{{*/
// ---------------------------------------------------------------------
/* This performs a fully scoped lookup of a given name, possibly creating
new items */
Configuration::Item *Configuration::Lookup(const char *Name,bool Create)
{
const char *Start = Name;
const char *End = Start + strlen(Name);
const char *TagEnd = Name;
Item *Itm = Root;
for (; End - TagEnd > 2; TagEnd++)
{
if (TagEnd[0] == ':' && TagEnd[1] == ':')
{
Itm = Lookup(Itm,Start,TagEnd - Start,Create);
if (Itm == 0)
return 0;
TagEnd = Start = TagEnd + 2;
}
}
Itm = Lookup(Itm,Start,End - Start,Create);
return Itm;
}
/*}}}*/
// Configuration::Find - Find a value /*{{{*/
// ---------------------------------------------------------------------
/* */
string Configuration::Find(const char *Name,const char *Default)
{
Item *Itm = Lookup(Name,false);
if (Itm == 0 || Itm->Value.empty() == true)
{
if (Default == 0)
return string();
else
return Default;
}
return Itm->Value;
}
/*}}}*/
// Configuration::FindDir - Find a directory /*{{{*/
// ---------------------------------------------------------------------
/* Directories are stored as the base dir in the Parent node and the
*/
string Configuration::FindDir(const char *Name,const char *Default = 0)
{
Item *Itm = Lookup(Name,false);
if (Itm == 0 || Itm->Value.empty() == true)
{
if (Default == 0)
return string();
else
return Default;
}
if (Itm->Value[0] == '/' || Itm->Parent == 0)
return Itm->Value;
if (Itm->Parent->Value.end()[-1] == '/')
return Itm->Parent->Value + Itm->Value;
else
return Itm->Parent->Value + '/' + Itm->Value;
}
/*}}}*/
// Configuration::FindI - Find an integer value /*{{{*/
// ---------------------------------------------------------------------
/* */
int Configuration::FindI(const char *Name,int Default)
{
Item *Itm = Lookup(Name,false);
if (Itm == 0 || Itm->Value.empty() == true)
return Default;
char *End;
int Res = strtol(Itm->Value.c_str(),&End,0);
if (End == Itm->Value.c_str())
return Default;
return Res;
}
/*}}}*/
// Configuration::Set - Set a value /*{{{*/
// ---------------------------------------------------------------------
/* */
void Configuration::Set(const char *Name,string Value)
{
Item *Itm = Lookup(Name,true);
if (Itm == 0)
return;
Itm->Value = Value;
}
/*}}}*/
// Configuration::Set - Set an integer value /*{{{*/
// ---------------------------------------------------------------------
/* */
void Configuration::Set(const char *Name,int Value)
{
Item *Itm = Lookup(Name,true);
if (Itm == 0)
return;
char S[300];
snprintf(S,sizeof(S),"%i",Value);
Itm->Value = S;
}
/*}}}*/
|
