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1 // Copyright (C) 2010, Guy Barrand. All rights 1 // Copyright (C) 2010, Guy Barrand. All rights reserved.
2 // See the file tools.license for terms. 2 // See the file tools.license for terms.
3 3
4 #ifndef tools_strip 4 #ifndef tools_strip
5 #define tools_strip 5 #define tools_strip
6 6
7 #include <vector> 7 #include <vector>
8 #include <string> 8 #include <string>
9 9
10 namespace tools { 10 namespace tools {
11 11
12 enum what { leading, trailing, both }; 12 enum what { leading, trailing, both };
13 13
14 inline bool strip(std::string& a_string,what a 14 inline bool strip(std::string& a_string,what a_type = both,char a_char = ' '){
15 //return true = some stripping had been done 15 //return true = some stripping had been done.
16 16
17 std::string::size_type l = a_string.length() 17 std::string::size_type l = a_string.length();
18 if(l==0) return false; 18 if(l==0) return false;
19 19
20 switch ( a_type ) { 20 switch ( a_type ) {
21 case leading:{ 21 case leading:{
22 char* pos = (char*)a_string.c_str(); 22 char* pos = (char*)a_string.c_str();
23 for(std::string::size_type i=0;i<l;i++,pos 23 for(std::string::size_type i=0;i<l;i++,pos++) {
24 if(*pos!=a_char) { 24 if(*pos!=a_char) {
25 a_string = a_string.substr(i,l-i); 25 a_string = a_string.substr(i,l-i);
26 return (i?true:false); //i=0 : same st 26 return (i?true:false); //i=0 : same string.
27 } 27 }
28 } 28 }
29 // all chars are a_char : 29 // all chars are a_char :
30 a_string.clear(); 30 a_string.clear();
31 return true; 31 return true;
32 }break; 32 }break;
33 case trailing:{ 33 case trailing:{
34 char* pos = (char*)a_string.c_str(); 34 char* pos = (char*)a_string.c_str();
35 pos += (l-1); 35 pos += (l-1);
36 std::string::size_type i = l-1; 36 std::string::size_type i = l-1;
37 std::string::const_reverse_iterator it; 37 std::string::const_reverse_iterator it;
38 for(it=a_string.rbegin();it!=a_string.rend 38 for(it=a_string.rbegin();it!=a_string.rend();++it,i--,pos--) {
39 if(*pos!=a_char) { 39 if(*pos!=a_char) {
40 a_string = a_string.substr(0,i+1); 40 a_string = a_string.substr(0,i+1);
41 return (i==(l-1)?false:true); //i==l-1 41 return (i==(l-1)?false:true); //i==l-1 : same string.
42 } 42 }
43 } 43 }
44 // all chars are a_char : 44 // all chars are a_char :
45 a_string.clear(); 45 a_string.clear();
46 return true; 46 return true;
47 }break; 47 }break;
48 case both:{ 48 case both:{
49 bool stat_lead = strip(a_string,leading,a_ 49 bool stat_lead = strip(a_string,leading,a_char);
50 bool stat_trail = strip(a_string,trailing, 50 bool stat_trail = strip(a_string,trailing,a_char);
51 if(stat_lead) return true; 51 if(stat_lead) return true;
52 if(stat_trail) return true; 52 if(stat_trail) return true;
53 }break; 53 }break;
54 //default:break; 54 //default:break;
55 } 55 }
56 return false; //nothing done. 56 return false; //nothing done.
57 } 57 }
58 58
59 #ifdef TOOLS_DEPRECATED 59 #ifdef TOOLS_DEPRECATED
60 inline std::string strp(const std::string& a_s 60 inline std::string strp(const std::string& a_string,what a_type = both,char a_char = ' '){
61 std::string _s(a_string); 61 std::string _s(a_string);
62 strip(_s,a_type,a_char); 62 strip(_s,a_type,a_char);
63 return _s; 63 return _s;
64 } 64 }
65 #endif //TOOLS_DEPRECATED 65 #endif //TOOLS_DEPRECATED
66 66
67 inline bool strip(std::vector<std::string>& a_ 67 inline bool strip(std::vector<std::string>& a_strings,what a_type = both,char a_char = ' ') {
68 bool some_done = false; 68 bool some_done = false;
69 std::vector<std::string>::iterator it; 69 std::vector<std::string>::iterator it;
70 for(it=a_strings.begin();it!=a_strings.end() 70 for(it=a_strings.begin();it!=a_strings.end();++it) {
71 if(strip(*it,a_type,a_char)) some_done = t 71 if(strip(*it,a_type,a_char)) some_done = true;
72 } 72 }
73 return some_done; 73 return some_done;
74 } 74 }
75 75
76 } 76 }
77 77
78 #endif 78 #endif