1 /*---------------------------------------------------------------------------* 2 * CommandLine.c * 3 * * 4 * Copyright 2007, 2008 Nuance Communciations, Inc. * 5 * * 6 * Licensed under the Apache License, Version 2.0 (the 'License'); * 7 * you may not use this file except in compliance with the License. * 8 * * 9 * You may obtain a copy of the License at * 10 * http://www.apache.org/licenses/LICENSE-2.0 * 11 * * 12 * Unless required by applicable law or agreed to in writing, software * 13 * distributed under the License is distributed on an 'AS IS' BASIS, * 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * 15 * See the License for the specific language governing permissions and * 16 * limitations under the License. * 17 * * 18 *---------------------------------------------------------------------------*/ 19 20 #include "ESR_CommandLine.h" 21 ESR_CommandLineGetValue(int argc,const LCHAR * argv[],LCHAR * key,LCHAR * value,size_t * len)22 ESR_ReturnCode ESR_CommandLineGetValue(int argc, const LCHAR * argv[], 23 LCHAR* key, LCHAR* value, size_t* len) 24 { 25 const LCHAR* lastKeyFound = NULL; 26 27 while (--argc > 0 && **++argv) 28 { 29 if (**argv != '-') 30 { 31 /* got value */ 32 if (key == NULL) 33 { 34 /* but we don't have any key to associate it with */ 35 continue; 36 } 37 else 38 { 39 if (lastKeyFound != NULL && LSTRCMP(lastKeyFound, key) == 0) 40 { 41 if (LSTRLEN(*argv) + 1 > *len) 42 { 43 *len = LSTRLEN(*argv) + 1; 44 return ESR_BUFFER_OVERFLOW; 45 } 46 *len = LSTRLEN(*argv) + 1; 47 LSTRCPY(value, *argv); 48 return ESR_SUCCESS; 49 } 50 } 51 } 52 else 53 { 54 /* got key */ 55 if (lastKeyFound != NULL && LSTRCMP(lastKeyFound, key) == 0) 56 { 57 *len = 1; 58 LSTRCPY(value, L("")); 59 return ESR_SUCCESS; 60 } 61 lastKeyFound = *argv + 1; 62 } 63 } 64 65 /* Handle case where last argument is a key with no value */ 66 if (lastKeyFound != NULL && LSTRCMP(lastKeyFound, key) == 0) 67 { 68 *len = 1; 69 LSTRCPY(value, L("")); 70 return ESR_SUCCESS; 71 } 72 return ESR_NO_MATCH_ERROR; 73 } 74