Dirck Sowada / IniFileLib

insert code for reading double numbers from ini-file

Fork of IniFileLib by rinosh 2

IniFile.cpp@3:1f40bfa093d0, 2015-01-07 (annotated)

Committer:
kokisan2000
Date:
Wed Jan 07 21:52:20 2015 +0000
Revision:
3:1f40bfa093d0
Parent:
2:4ae80a05f6ea 
insert code for double numbers in ini-file

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rinosh2 0:995403221573 1 ///////////////////////////////////////////////////////////////////////////////
rinosh2 0:995403221573 2 // IniFile: .ini file parser by rinos 2010
rinosh2 0:995403221573 3 ///////////////////////////////////////////////////////////////////////////////
kokisan2000 3:1f40bfa093d0 4 // 07.01.2015: by DS - insert code for double format
kokisan2000 3:1f40bfa093d0 5 ///////////////////////////////////////////////////////////////////////////////
rinosh2 0:995403221573 6
rinosh2 0:995403221573 7 #include "IniFile.h"
rinosh2 0:995403221573 8 #include <string.h>
rinosh2 0:995403221573 9 #include <stdlib.h>
rinosh2 0:995403221573 10
rinosh2 0:995403221573 11 ////////////////////////////////////////////////////////////////////////////////
rinosh2 0:995403221573 12 // defines
rinosh2 0:995403221573 13 const char INI_DELIM[] = " \t\r\n";
rinosh2 0:995403221573 14 const int INI_LINE_BUF= 256;
rinosh2 0:995403221573 15
rinosh2 0:995403221573 16 ////////////////////////////////////////////////////////////////////////////////
rinosh2 0:995403221573 17 // IniFile
rinosh2 0:995403221573 18 IniFile::IniFile(const char* file): m_fp(0) {
rinosh2 0:995403221573 19 if(file) open(file);
rinosh2 0:995403221573 20 }
rinosh2 0:995403221573 21 IniFile::~IniFile(){
rinosh2 0:995403221573 22 close();
rinosh2 0:995403221573 23 }
rinosh2 0:995403221573 24
rinosh2 0:995403221573 25 ////////////////////////////////////////////////////////////////////////////////
rinosh2 0:995403221573 26 // internal funcs
rinosh2 0:995403221573 27 IniFile::Status IniFile::strtrim(char* dst, const char* src, int dst_size){
rinosh2 0:995403221573 28 if(!dst_size) return S_BUFFER_TOO_SHORT; // myStrcpy needs more than 1 byte for '\0'.
rinosh2 0:995403221573 29
rinosh2 0:995403221573 30 // Find valid string area
rinosh2 0:995403221573 31 const char* p1 = strchr (src, '"');
rinosh2 0:995403221573 32 const char* p2 = p1? strrchr(++p1, '"') : 0;
rinosh2 0:995403221573 33 if(!p2){
rinosh2 0:995403221573 34 // trim space or tab
rinosh2 0:995403221573 35 for(p1 = src ; *p1 && strchr(INI_DELIM, *p1) ; p1++);
rinosh2 0:995403221573 36 if(!*p1){ // all char is space or tab
rinosh2 0:995403221573 37 *dst = 0;
rinosh2 0:995403221573 38 return S_SUCCESS;
rinosh2 0:995403221573 39 }
rinosh2 0:995403221573 40 for(p2 = p1 + strlen(p1) ; strchr(INI_DELIM, p2[-1]) ; --p2);
rinosh2 0:995403221573 41 }
rinosh2 0:995403221573 42
rinosh2 0:995403221573 43 // Check copy size
rinosh2 0:995403221573 44 Status ret;
rinosh2 0:995403221573 45 if(dst_size > p2 - p1){
rinosh2 0:995403221573 46 dst_size = p2 - p1;
rinosh2 0:995403221573 47 ret = S_SUCCESS;
rinosh2 0:995403221573 48 } else {
rinosh2 0:995403221573 49 dst_size--;
rinosh2 0:995403221573 50 ret = S_BUFFER_TOO_SHORT;
rinosh2 0:995403221573 51 }
rinosh2 0:995403221573 52
rinosh2 0:995403221573 53 // copy buffer
rinosh2 0:995403221573 54 if(dst != p1) memmove(dst, p1, dst_size);
rinosh2 0:995403221573 55 dst[dst_size] = 0;
rinosh2 0:995403221573 56 return ret;
rinosh2 0:995403221573 57 }
rinosh2 0:995403221573 58
rinosh2 0:995403221573 59 ////////////////////////////////////////////////////////////////////////////////
rinosh2 0:995403221573 60 // Access methods
rinosh2 0:995403221573 61 IniFile::Status IniFile::open(const char* file){
rinosh2 0:995403221573 62 close();
rinosh2 0:995403221573 63 m_fp = fopen(file, "r");
rinosh2 0:995403221573 64 if(m_fp) return S_SUCCESS;
rinosh2 0:995403221573 65
rinosh2 0:995403221573 66 //printf("IniFile: Can't open %s\n", file);
rinosh2 0:995403221573 67 return S_OPEN_ERROR;
rinosh2 0:995403221573 68 }
rinosh2 0:995403221573 69
rinosh2 0:995403221573 70 IniFile::Status IniFile::close(){
rinosh2 0:995403221573 71 if(!m_fp) return S_NOT_OPENED;
rinosh2 0:995403221573 72
rinosh2 0:995403221573 73 fclose(m_fp);
rinosh2 0:995403221573 74 m_fp = 0;
rinosh2 0:995403221573 75 return S_SUCCESS;
rinosh2 0:995403221573 76 }
rinosh2 0:995403221573 77
rinosh2 0:995403221573 78 IniFile::Status IniFile::get(const char* key, char* ret, int ret_size){
rinosh2 2:4ae80a05f6ea 79 if(!m_fp){
rinosh2 2:4ae80a05f6ea 80 printf("IniFile::get %s S_OPEN_ERROR\n", key);
rinosh2 2:4ae80a05f6ea 81 return S_OPEN_ERROR;
rinosh2 2:4ae80a05f6ea 82 }
rinosh2 0:995403221573 83
rinosh2 0:995403221573 84 rewind(m_fp);
rinosh2 0:995403221573 85 char line[INI_LINE_BUF];
rinosh2 0:995403221573 86 while(fgets(line, sizeof(line), m_fp)){
rinosh2 0:995403221573 87 if(*line == '#') continue; // comment line
rinosh2 0:995403221573 88
rinosh2 0:995403221573 89 char* p = strchr(line, '=');
rinosh2 0:995403221573 90 if(!p || line == p) continue; // invalid line
rinosh2 0:995403221573 91
rinosh2 0:995403221573 92 *p++ = 0;
rinosh2 0:995403221573 93 strtrim(line, line, p - line);
rinosh2 2:4ae80a05f6ea 94 if(strcmp(line, key)) continue; // different key // stricmp?
rinosh2 0:995403221573 95
rinosh2 0:995403221573 96 // check data type
rinosh2 0:995403221573 97 switch(ret_size){
rinosh2 0:995403221573 98 case DTYPE_INT:
rinosh2 0:995403221573 99 strtrim(line, p, INI_LINE_BUF);
rinosh2 0:995403221573 100 *(int*)ret = strtoul(line, &p, 0);
rinosh2 0:995403221573 101 //return p[0]? S_FORMAT_ERROR : S_SUCCESS; // check end
rinosh2 2:4ae80a05f6ea 102 printf("IniFile::get %s INT %d\n", key, *(int*)ret);
rinosh2 0:995403221573 103 return S_SUCCESS; // always success
rinosh2 0:995403221573 104
rinosh2 0:995403221573 105 case DTYPE_BOOL:
rinosh2 0:995403221573 106 strtrim(line, p, INI_LINE_BUF);
rinosh2 0:995403221573 107 switch(line[0]){
rinosh2 0:995403221573 108 case 'T':
rinosh2 0:995403221573 109 case 't': *(bool*)ret = true; break;
rinosh2 0:995403221573 110 case 'F':
rinosh2 0:995403221573 111 case 'f': *(bool*)ret = false; break;
rinosh2 0:995403221573 112 default: *(bool*)ret = strtoul(line, &p, 0)? true : false;
rinosh2 0:995403221573 113 }
rinosh2 2:4ae80a05f6ea 114 printf("IniFile::get %s BOOL %d\n", key, *(bool*)ret);
rinosh2 0:995403221573 115 return S_SUCCESS;
rinosh2 0:995403221573 116
kokisan2000 3:1f40bfa093d0 117 case DTYPE_DOUBLE:
kokisan2000 3:1f40bfa093d0 118 strtrim(line, p, INI_LINE_BUF);
kokisan2000 3:1f40bfa093d0 119 *(double*)ret = strtod(line, &p);
kokisan2000 3:1f40bfa093d0 120
kokisan2000 3:1f40bfa093d0 121 printf("IniFile::get %s DOUBLE %f\n", key, *(double*)ret);
kokisan2000 3:1f40bfa093d0 122 return S_SUCCESS; // always success
kokisan2000 3:1f40bfa093d0 123
rinosh2 0:995403221573 124 default: // string
rinosh2 2:4ae80a05f6ea 125 {
rinosh2 2:4ae80a05f6ea 126 Status sts = strtrim(ret, p, ret_size);
rinosh2 2:4ae80a05f6ea 127 printf("IniFile::get %s = '%s'\n", key, ret_size? ret : "E");
rinosh2 2:4ae80a05f6ea 128 return sts;
rinosh2 2:4ae80a05f6ea 129 }
rinosh2 0:995403221573 130 }
rinosh2 0:995403221573 131 }
rinosh2 2:4ae80a05f6ea 132 printf("IniFile::get S_NO_KEY'%s'\n", key);
rinosh2 0:995403221573 133 return S_NO_KEY; // No key
rinosh2 0:995403221573 134 }
rinosh2 0:995403221573 135 IniFile::Status IniFile::get(const char* key, int& ret){
rinosh2 0:995403221573 136 return get(key, (char*)&ret, DTYPE_INT);
rinosh2 0:995403221573 137 }
rinosh2 0:995403221573 138 IniFile::Status IniFile::get(const char* key, bool& ret){
rinosh2 0:995403221573 139 return get(key, (char*)&ret, DTYPE_BOOL);
rinosh2 0:995403221573 140 }
kokisan2000 3:1f40bfa093d0 141 IniFile::Status IniFile::get(const char* key, double& ret){
kokisan2000 3:1f40bfa093d0 142 return get(key, (char*)&ret, DTYPE_DOUBLE);
kokisan2000 3:1f40bfa093d0 143 }
rinosh2 1:3601c7feb547 144 IniFile::Status IniFile::get(const IniFile::IniList* inilist){
rinosh2 0:995403221573 145 Status ret = S_SUCCESS;
rinosh2 0:995403221573 146 for(; inilist->key ; ++inilist){
rinosh2 0:995403221573 147 Status sts = get(inilist->key, (char*)inilist->buf, inilist->typelen);
rinosh2 0:995403221573 148 switch(sts){
rinosh2 0:995403221573 149 case S_SUCCESS:
rinosh2 0:995403221573 150 break;
rinosh2 0:995403221573 151 case S_NO_KEY:
rinosh2 0:995403221573 152 ret = sts; // continue
rinosh2 0:995403221573 153 break;
rinosh2 0:995403221573 154 default:
rinosh2 0:995403221573 155 return sts; // fatal error
rinosh2 0:995403221573 156 }
rinosh2 0:995403221573 157 }
rinosh2 0:995403221573 158 return ret;
rinosh2 0:995403221573 159 }