// CONSTANTS
#define varsubs_GLOBAL_FLAG 'G'
#define varsubs_LOCAL_FLAG  'L'
#define varsubs_PARM_FLAG   'P'
#define varsubs_ALIAS_FLAG  'A'

char *varsubs_FindVar(char *str);
char *varsubs_FindAlias(char *str);
char *varsubs_FindEnd(void);
char *varsubs_RemoveEntry(char *ptr1);
void  varsubs_RemoveVar(char *name);
void  varsubs_SaveVar(char *name, char *value, int type);
char *varsubs_GetVarVal(char *name);
char *varsubs_Val(char *ptr);
int   varsubs_NumVal(char *ptr);
char *varsubs_FindChar(char *str, int val);
char *varsubs_SkipChar(char *str, int val);