Add blc_add_arg in blc_tools (it was in blc_program before)

include/blc_tools.h

@@ -276,6 +276,18 @@ void *insert_item(const char *file, const char *function, int line, void** point
 void remove_item_position(const char *file, const char *function, int line, void** pointer, size_t pointer_content_size, int *items_nb, int position);
 int get_item_position(const char *file, const char *function, int line, void const* const* array_pt, size_t pointer_content_size, int items_nb, size_t item_size, void* searched_item_pt);
 
+
+///Add an argument to the list argv of arguments. Add eventually a value as well.
+void blc_add_arg( int *argc, char ***argv, char const *arg, char const *value);
+
+///Allocate and fill a command line with the array of argument. The array must be terminated by a NULL argument and must the returned command line me be freed after use.
+///It does not handle spaces in argument !!!
+char *blc_create_command_line_from_argv(char const *const *argv);
+
+///Allocate and fill an array of argument by spiting the command_line. The array is terminated by a NULL argument and it must be freed after used.
+///It does not handle spaces in argument !!!
+char * const*blc_create_argv_from_command_line(char const *command_line);
+
 END_EXTERN_C
 ///@}
 #endif /* BLC_TOOLS_H */

src/blc_tools.cpp

@@ -261,7 +261,7 @@ char const *blc_get_filename_extension(char const *filename){
     
     next_ext=strchr(filename, '.');
     if (next_ext==NULL) return NULL;
-
+    
     do{
         ext=next_ext;
         next_ext=strchr(ext+1, '.');
@@ -270,11 +270,50 @@ char const *blc_get_filename_extension(char const *filename){
     return ext+1;
 }
 
-extern "C"{
+START_EXTERN_C
 char* blc_uint32_to_string(uint32_t *string, uint32_t x){
     *string=htonl(x);
     return (char*)string;
 }
+
+void blc_add_arg( int *argc, char ***argv, char const *arg, char const *value){
+    APPEND_ITEM(argv, argc, &arg);
+    if (value!=NULL) APPEND_ITEM(argv, argc, &value);
+}
+
+char *blc_create_command_line_from_argv(char const *const *argv){
+    int command_line_size, i;
+    char *command_line, *pos;
+    
+    command_line_size=0;
+    for(i=0; argv[i] != NULL; i++) command_line_size+=strlen(argv[i])+1; // + 1 for the space
+    
+    command_line=MANY_ALLOCATIONS(command_line_size+1, char);
+    pos=command_line;
+    for(i=0; argv[i] != NULL; i++)
+        pos+=sprintf(pos, "%s ", argv[i]);
+    return command_line;
+}
+
+char * const*blc_create_argv_from_command_line(char const *command_line)
+{
+    char * const*argv=NULL;
+    char *arg_pt;
+    char const *pos;
+    char tmp_arg[NAME_MAX+1];
+    int length, argc=0;
+    
+    pos=command_line;
+    while(sscanf(pos, SCAN_CONV(NAME_MAX, "s")"%n", tmp_arg, &length)==1)
+    {
+        arg_pt = strdup(tmp_arg);
+        APPEND_ITEM(&argv, &argc, &arg_pt);
+        pos+=length;
+    }
+    arg_pt=NULL;
+    APPEND_ITEM(&argv, &argc, &arg_pt);
+    return argv;
 }
+END_EXTERN_C