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Arguments.cpp
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2013 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #include "mbed.h" 00017 #include "Arguments.h" 00018 #include "pinmap.h" 00019 00020 using namespace std; 00021 00022 namespace mbed { 00023 00024 Arguments::Arguments(const char* rqs) { 00025 obj_name = NULL; 00026 method_name = NULL; 00027 argc = 0; 00028 00029 // This copy can be removed if we can assume the request string is 00030 // persistent and writable for the duration of the call 00031 strcpy(request, rqs); 00032 00033 // Initial '/' 00034 char* p = request; 00035 if (*p != '/') return; 00036 p++; 00037 00038 // Object Name 00039 p = search_arg(&obj_name, p, '/'); 00040 if (p == NULL) return; 00041 00042 // Method Name 00043 p = search_arg(&method_name, p, ' '); 00044 if (p == NULL) return; 00045 00046 // Arguments 00047 while (true) { 00048 argv[argc] = NULL; 00049 p = search_arg(&argv[argc], p, ' '); 00050 if (argv[argc] != NULL) argc++; 00051 if (p == NULL) break; 00052 } 00053 00054 index = -1; 00055 } 00056 00057 char* Arguments::search_arg(char **arg, char *p, char next_sep) { 00058 char *s = p; 00059 while (true) { 00060 if ((*p == '/') || (*p == ' ') || (*p == '\n') || (*p == '\0')) break; 00061 p++; 00062 } 00063 if (p == s) return NULL; 00064 *arg = s; 00065 char separator = *p; 00066 *p = '\0'; 00067 p++; 00068 return (separator == next_sep) ? (p) : (NULL); 00069 } 00070 00071 template<> PinName Arguments::getArg<PinName>(void) { 00072 index++; 00073 return parse_pins(argv[index]); 00074 } 00075 00076 template<> int Arguments::getArg<int>(void) { 00077 index++; 00078 char *pEnd; 00079 return strtol(argv[index], &pEnd, 10); 00080 } 00081 00082 template<> unsigned short Arguments::getArg<unsigned short>(void) { 00083 index++; 00084 char *pEnd; 00085 return (unsigned short)strtol(argv[index], &pEnd, 10); 00086 } 00087 00088 template<> const char* Arguments::getArg<const char*>(void) { 00089 index++; 00090 return argv[index]; 00091 } 00092 00093 template<> char* Arguments::getArg<char*>(void) { 00094 index++; 00095 if (index < argc) { 00096 return argv[index]; 00097 } 00098 00099 return 0; 00100 } 00101 00102 template<> char Arguments::getArg<char>(void) { 00103 index++; 00104 return *argv[index]; 00105 } 00106 00107 template<> double Arguments::getArg<double>(void) { 00108 index++; 00109 return atof(argv[index]); 00110 } 00111 00112 template<> float Arguments::getArg<float>(void) { 00113 index++; 00114 return atof(argv[index]); 00115 } 00116 00117 Reply::Reply(char* r) { 00118 first = true; 00119 *r = '\0'; 00120 reply = r; 00121 } 00122 00123 void Reply::separator(void) { 00124 if (first) { 00125 first = false; 00126 } else { 00127 *reply = ' '; reply++; 00128 } 00129 } 00130 00131 template<> void Reply::putData<const char*>(const char* s) { 00132 separator(); 00133 reply += sprintf(reply, "%s", s); 00134 } 00135 00136 template<> void Reply::putData<char*>(char* s) { 00137 separator(); 00138 reply += sprintf(reply, "%s", s); 00139 } 00140 00141 template<> void Reply::putData<char>(char c) { 00142 separator(); 00143 reply += sprintf(reply, "%c", c); 00144 } 00145 00146 template<> void Reply::putData<int>(int v) { 00147 separator(); 00148 reply += sprintf(reply, "%d", v); 00149 } 00150 00151 template<> void Reply::putData<unsigned short>(unsigned short uint16) { 00152 separator(); 00153 reply += sprintf(reply, "%u", uint16); 00154 } 00155 00156 template<> void Reply::putData<float>(float f) { 00157 separator(); 00158 reply += sprintf(reply, "%.17g", f); 00159 } 00160 00161 } // namespace mbed
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