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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
/* ######################################################################
String Util - These are some useful string functions
_strstrip is a function to remove whitespace from the front and end
of a string.
This source is placed in the Public Domain, do with it what you will
It was originally written by Jason Gunthorpe <jgg@gpu.srv.ualberta.ca>
##################################################################### */
/*}}}*/
#ifndef STRUTL_H
#define STRUTL_H
#include <cstring>
#include <iostream>
#include <limits>
#include <string>
#include <vector>
#include <apt-pkg/string_view.h>
#include <stddef.h>
#include <time.h>
#include "macros.h"
namespace APT {
namespace String {
APT_PUBLIC std::string Strip(const std::string &s);
APT_PUBLIC bool Endswith(const std::string &s, const std::string &ending);
APT_PUBLIC bool Startswith(const std::string &s, const std::string &starting);
APT_PUBLIC std::string Join(std::vector<std::string> list, const std::string &sep);
// Returns string display length honoring multi-byte characters
APT_PUBLIC size_t DisplayLength(StringView str);
}
}
APT_PUBLIC bool UTF8ToCodeset(const char *codeset, const std::string &orig, std::string *dest);
APT_PUBLIC char *_strstrip(char *String);
APT_PUBLIC char *_strrstrip(char *String); // right strip only
APT_DEPRECATED_MSG("Use SubstVar to avoid memory headaches") APT_PUBLIC char *_strtabexpand(char *String,size_t Len);
APT_PUBLIC bool ParseQuoteWord(const char *&String,std::string &Res);
APT_PUBLIC bool ParseCWord(const char *&String,std::string &Res);
APT_PUBLIC std::string QuoteString(const std::string &Str,const char *Bad);
APT_PUBLIC std::string DeQuoteString(const std::string &Str);
APT_PUBLIC std::string DeQuoteString(std::string::const_iterator const &begin, std::string::const_iterator const &end);
// unescape (\0XX and \xXX) from a string
APT_PUBLIC std::string DeEscapeString(const std::string &input);
APT_PUBLIC std::string SizeToStr(double Bytes);
APT_PUBLIC std::string TimeToStr(unsigned long Sec);
APT_PUBLIC std::string Base64Encode(const std::string &Str);
APT_PUBLIC std::string OutputInDepth(const unsigned long Depth, const char* Separator=" ");
APT_PUBLIC std::string URItoFileName(const std::string &URI);
/** returns a datetime string as needed by HTTP/1.1 and Debian files.
*
* Note: The date will always be represented in a UTC timezone
*
* @param Date to be represented as a string
* @param NumericTimezone is preferred in general, but HTTP/1.1 requires the use
* of GMT as timezone instead. \b true means that the timezone should be denoted
* as "+0000" while \b false uses "GMT".
*/
APT_PUBLIC std::string TimeRFC1123(time_t Date, bool const NumericTimezone);
/** parses time as needed by HTTP/1.1 and Debian files.
*
* HTTP/1.1 prefers dates in RFC1123 format (but the other two obsolete date formats
* are supported to) and e.g. Release files use the same format in Date & Valid-Until
* fields.
*
* Note: datetime strings need to be in UTC timezones (GMT, UTC, Z, +/-0000) to be
* parsed. Other timezones will be rejected as invalid. Previous implementations
* accepted other timezones, but treated them as UTC.
*
* @param str is the datetime string to parse
* @param[out] time will be the seconds since epoch of the given datetime if
* parsing is successful, undefined otherwise.
* @return \b true if parsing was successful, otherwise \b false.
*/
APT_PUBLIC bool RFC1123StrToTime(const std::string &str,time_t &time) APT_MUSTCHECK;
APT_PUBLIC bool FTPMDTMStrToTime(const char* const str,time_t &time) APT_MUSTCHECK;
APT_PUBLIC std::string LookupTag(const std::string &Message,const char *Tag,const char *Default = 0);
APT_PUBLIC int StringToBool(const std::string &Text,int Default = -1);
APT_PUBLIC bool ReadMessages(int Fd, std::vector<std::string> &List);
APT_PUBLIC bool StrToNum(const char *Str,unsigned long &Res,unsigned Len,unsigned Base = 0);
APT_PUBLIC bool StrToNum(const char *Str,unsigned long long &Res,unsigned Len,unsigned Base = 0);
APT_PUBLIC bool Base256ToNum(const char *Str,unsigned long &Res,unsigned int Len);
APT_PUBLIC bool Base256ToNum(const char *Str,unsigned long long &Res,unsigned int Len);
APT_PUBLIC bool Hex2Num(const APT::StringView Str,unsigned char *Num,unsigned int Length);
// input changing string split
APT_PUBLIC bool TokSplitString(char Tok,char *Input,char **List,
unsigned long ListMax);
// split a given string by a char
APT_PUBLIC std::vector<std::string> VectorizeString(std::string const &haystack, char const &split) APT_PURE;
/* \brief Return a vector of strings from string "input" where "sep"
* is used as the delimiter string.
*
* \param input The input string.
*
* \param sep The separator to use.
*
* \param maxsplit (optional) The maximum amount of splitting that
* should be done .
*
* The optional "maxsplit" argument can be used to limit the splitting,
* if used the string is only split on maxsplit places and the last
* item in the vector contains the remainder string.
*/
APT_PUBLIC std::vector<std::string> StringSplit(std::string const &input,
std::string const &sep,
unsigned int maxsplit=std::numeric_limits<unsigned int>::max()) APT_PURE;
APT_HIDDEN bool iovprintf(std::ostream &out, const char *format, va_list &args, ssize_t &size);
APT_PUBLIC void ioprintf(std::ostream &out,const char *format,...) APT_PRINTF(2);
APT_PUBLIC void strprintf(std::string &out,const char *format,...) APT_PRINTF(2);
APT_PUBLIC char *safe_snprintf(char *Buffer,char *End,const char *Format,...) APT_PRINTF(3);
APT_PUBLIC bool CheckDomainList(const std::string &Host, const std::string &List);
/* Do some compat mumbo jumbo */
#define tolower_ascii tolower_ascii_inline
#define isspace_ascii isspace_ascii_inline
APT_PURE APT_HOT
static inline int tolower_ascii_unsafe(int const c)
{
return c | 0x20;
}
APT_PURE APT_HOT
static inline int tolower_ascii_inline(int const c)
{
return (c >= 'A' && c <= 'Z') ? c + 32 : c;
}
APT_PURE APT_HOT
static inline int isspace_ascii_inline(int const c)
{
// 9='\t',10='\n',11='\v',12='\f',13='\r',32=' '
return (c >= 9 && c <= 13) || c == ' ';
}
APT_PUBLIC std::string StripEpoch(const std::string &VerStr);
#define APT_MKSTRCMP(name,func) \
inline APT_PURE int name(const char *A,const char *B) {return func(A,A+strlen(A),B,B+strlen(B));} \
inline APT_PURE int name(const char *A,const char *AEnd,const char *B) {return func(A,AEnd,B,B+strlen(B));} \
inline APT_PURE int name(const std::string& A,const char *B) {return func(A.c_str(),A.c_str()+A.length(),B,B+strlen(B));} \
inline APT_PURE int name(const std::string& A,const std::string& B) {return func(A.c_str(),A.c_str()+A.length(),B.c_str(),B.c_str()+B.length());} \
inline APT_PURE int name(const std::string& A,const char *B,const char *BEnd) {return func(A.c_str(),A.c_str()+A.length(),B,BEnd);}
#define APT_MKSTRCMP2(name,func) \
inline APT_PURE int name(const char *A,const char *AEnd,const char *B) {return func(A,AEnd,B,B+strlen(B));} \
inline APT_PURE int name(const std::string& A,const char *B) {return func(A.begin(),A.end(),B,B+strlen(B));} \
inline APT_PURE int name(const std::string& A,const std::string& B) {return func(A.begin(),A.end(),B.begin(),B.end());} \
inline APT_PURE int name(const std::string& A,const char *B,const char *BEnd) {return func(A.begin(),A.end(),B,BEnd);}
APT_PUBLIC int APT_PURE stringcmp(const char *A,const char *AEnd,const char *B,const char *BEnd);
APT_PUBLIC int APT_PURE stringcasecmp(const char *A,const char *AEnd,const char *B,const char *BEnd);
/* We assume that GCC 3 indicates that libstdc++3 is in use too. In that
case the definition of string::const_iterator is not the same as
const char * and we need these extra functions */
#if __GNUC__ >= 3
APT_PUBLIC int APT_PURE stringcmp(std::string::const_iterator A,std::string::const_iterator AEnd,
const char *B,const char *BEnd);
APT_PUBLIC int APT_PURE stringcmp(std::string::const_iterator A,std::string::const_iterator AEnd,
std::string::const_iterator B,std::string::const_iterator BEnd);
APT_PUBLIC int APT_PURE stringcasecmp(std::string::const_iterator A,std::string::const_iterator AEnd,
const char *B,const char *BEnd);
APT_PUBLIC int APT_PURE stringcasecmp(std::string::const_iterator A,std::string::const_iterator AEnd,
std::string::const_iterator B,std::string::const_iterator BEnd);
inline APT_PURE int stringcmp(std::string::const_iterator A,std::string::const_iterator Aend,const char *B) {return stringcmp(A,Aend,B,B+strlen(B));}
inline APT_PURE int stringcasecmp(std::string::const_iterator A,std::string::const_iterator Aend,const char *B) {return stringcasecmp(A,Aend,B,B+strlen(B));}
#endif
APT_MKSTRCMP2(stringcmp,stringcmp)
APT_MKSTRCMP2(stringcasecmp,stringcasecmp)
// Return the length of a NULL-terminated string array
APT_PUBLIC size_t APT_PURE strv_length(const char **str_array);
inline const char *DeNull(const char *s) {return (s == 0?"(null)":s);}
class APT_PUBLIC URI
{
void CopyFrom(const std::string &From);
public:
std::string Access;
std::string User;
std::string Password;
std::string Host;
std::string Path;
unsigned int Port;
operator std::string();
inline void operator =(const std::string &From) {CopyFrom(From);}
inline bool empty() {return Access.empty();};
static std::string SiteOnly(const std::string &URI);
static std::string ArchiveOnly(const std::string &URI);
static std::string NoUserPassword(const std::string &URI);
explicit URI(std::string Path) { CopyFrom(Path); }
URI() : Port(0) {}
};
struct SubstVar
{
const char *Subst;
const std::string *Contents;
};
APT_PUBLIC std::string SubstVar(std::string Str,const struct SubstVar *Vars);
APT_PUBLIC std::string SubstVar(const std::string &Str,const std::string &Subst,const std::string &Contents);
struct RxChoiceList
{
void *UserData;
const char *Str;
bool Hit;
};
APT_PUBLIC unsigned long RegexChoice(RxChoiceList *Rxs,const char **ListBegin,
const char **ListEnd);
#endif
|
