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1 // -*- mode: cpp; mode: fold -*-
2 // Description /*{{{*/
3 // $Id: strutl.h,v 1.22 2003/02/02 22:20:27 jgg Exp $
4 /* ######################################################################
5
6 String Util - These are some useful string functions
7
8 _strstrip is a function to remove whitespace from the front and end
9 of a string.
10
11 This source is placed in the Public Domain, do with it what you will
12 It was originally written by Jason Gunthorpe <jgg@gpu.srv.ualberta.ca>
13
14 ##################################################################### */
15 /*}}}*/
16 #ifndef STRUTL_H
17 #define STRUTL_H
18
19
20
21 #include <stdlib.h>
22 #include <string>
23 #include <cstring>
24 #include <vector>
25 #include <iostream>
26 #include <time.h>
27
28 #include "macros.h"
29
30 using std::string;
31 using std::vector;
32 using std::ostream;
33
34 bool UTF8ToCodeset(const char *codeset, const string &orig, string *dest);
35 char *_strstrip(char *String);
36 char *_strtabexpand(char *String,size_t Len);
37 bool ParseQuoteWord(const char *&String,string &Res);
38 bool ParseCWord(const char *&String,string &Res);
39 string QuoteString(const string &Str,const char *Bad);
40 string DeQuoteString(const string &Str);
41 string SizeToStr(double Bytes);
42 string TimeToStr(unsigned long Sec);
43 string Base64Encode(const string &Str);
44 string OutputInDepth(const unsigned long Depth, const char* Separator=" ");
45 string URItoFileName(const string &URI);
46 string TimeRFC1123(time_t Date);
47 bool StrToTime(const string &Val,time_t &Result);
48 string LookupTag(const string &Message,const char *Tag,const char *Default = 0);
49 int StringToBool(const string &Text,int Default = -1);
50 bool ReadMessages(int Fd, vector<string> &List);
51 bool StrToNum(const char *Str,unsigned long &Res,unsigned Len,unsigned Base = 0);
52 bool Hex2Num(const string &Str,unsigned char *Num,unsigned int Length);
53 bool TokSplitString(char Tok,char *Input,char **List,
54 unsigned long ListMax);
55 vector<string> ExplodeString(string const &haystack, char const &split);
56 void ioprintf(ostream &out,const char *format,...) __like_printf(2);
57 void strprintf(string &out,const char *format,...) __like_printf(2);
58 char *safe_snprintf(char *Buffer,char *End,const char *Format,...) __like_printf(3);
59 bool CheckDomainList(const string &Host, const string &List);
60 int tolower_ascii(int const c) __attrib_const __hot;
61
62 #define APT_MKSTRCMP(name,func) \
63 inline int name(const char *A,const char *B) {return func(A,A+strlen(A),B,B+strlen(B));}; \
64 inline int name(const char *A,const char *AEnd,const char *B) {return func(A,AEnd,B,B+strlen(B));}; \
65 inline int name(const string& A,const char *B) {return func(A.c_str(),A.c_str()+A.length(),B,B+strlen(B));}; \
66 inline int name(const string& A,const string& B) {return func(A.c_str(),A.c_str()+A.length(),B.c_str(),B.c_str()+B.length());}; \
67 inline int name(const string& A,const char *B,const char *BEnd) {return func(A.c_str(),A.c_str()+A.length(),B,BEnd);};
68
69 #define APT_MKSTRCMP2(name,func) \
70 inline int name(const char *A,const char *AEnd,const char *B) {return func(A,AEnd,B,B+strlen(B));}; \
71 inline int name(const string& A,const char *B) {return func(A.begin(),A.end(),B,B+strlen(B));}; \
72 inline int name(const string& A,const string& B) {return func(A.begin(),A.end(),B.begin(),B.end());}; \
73 inline int name(const string& A,const char *B,const char *BEnd) {return func(A.begin(),A.end(),B,BEnd);};
74
75 int stringcmp(const char *A,const char *AEnd,const char *B,const char *BEnd);
76 int stringcasecmp(const char *A,const char *AEnd,const char *B,const char *BEnd);
77
78 /* We assume that GCC 3 indicates that libstdc++3 is in use too. In that
79 case the definition of string::const_iterator is not the same as
80 const char * and we need these extra functions */
81 #if __GNUC__ >= 3
82 int stringcmp(string::const_iterator A,string::const_iterator AEnd,
83 const char *B,const char *BEnd);
84 int stringcmp(string::const_iterator A,string::const_iterator AEnd,
85 string::const_iterator B,string::const_iterator BEnd);
86 int stringcasecmp(string::const_iterator A,string::const_iterator AEnd,
87 const char *B,const char *BEnd);
88 int stringcasecmp(string::const_iterator A,string::const_iterator AEnd,
89 string::const_iterator B,string::const_iterator BEnd);
90
91 inline int stringcmp(string::const_iterator A,string::const_iterator Aend,const char *B) {return stringcmp(A,Aend,B,B+strlen(B));};
92 inline int stringcasecmp(string::const_iterator A,string::const_iterator Aend,const char *B) {return stringcasecmp(A,Aend,B,B+strlen(B));};
93 #endif
94
95 APT_MKSTRCMP2(stringcmp,stringcmp);
96 APT_MKSTRCMP2(stringcasecmp,stringcasecmp);
97
98 inline const char *DeNull(const char *s) {return (s == 0?"(null)":s);};
99
100 class URI
101 {
102 void CopyFrom(const string &From);
103
104 public:
105
106 string Access;
107 string User;
108 string Password;
109 string Host;
110 string Path;
111 unsigned int Port;
112
113 operator string();
114 inline void operator =(const string &From) {CopyFrom(From);};
115 inline bool empty() {return Access.empty();};
116 static string SiteOnly(const string &URI);
117 static string NoUserPassword(const string &URI);
118
119 URI(string Path) {CopyFrom(Path);};
120 URI() : Port(0) {};
121 };
122
123 struct SubstVar
124 {
125 const char *Subst;
126 const string *Contents;
127 };
128 string SubstVar(string Str,const struct SubstVar *Vars);
129 string SubstVar(const string &Str,const string &Subst,const string &Contents);
130
131 struct RxChoiceList
132 {
133 void *UserData;
134 const char *Str;
135 bool Hit;
136 };
137 unsigned long RegexChoice(RxChoiceList *Rxs,const char **ListBegin,
138 const char **ListEnd);
139
140 #endif