GetLongOpt.h
00001 /* $Id: GetLongOpt.h,v 2.1 2002/04/03 06:44:39 cljanss Exp $ */
00002 /* S Manoharan. Advanced Computer Research Institute. Lyon. France */
00003
00004 #ifdef __GNUC__
00005 #pragma interface
00006 #endif
00007
00008 #ifndef _GetLongOpt_h_
00009 #define _GetLongOpt_h_
00010
00011 #include <iostream>
00012 #include <string.h>
00013
00014 namespace sc {
00015
00016 class GetLongOpt {
00017 public:
00018 enum OptType {
00019 NoValue, OptionalValue, MandatoryValue
00020 };
00021 private:
00022 struct Cell {
00023 const char *option; // option name
00024 OptType type; // option type
00025 const char *description; // a description of option
00026 const char *value; // value of option (string)
00027 Cell *next; // pointer to the next cell
00028
00029 Cell() { option = description = value = 0; next = 0; }
00030 };
00031 private:
00032 Cell *table; // option table
00033 const char *ustring; // usage message
00034 char *pname; // program basename
00035 char optmarker; // option marker
00036
00037 int enroll_done; // finished enrolling
00038 Cell *last; // last entry in option table
00039
00040 private:
00041 char *basename(char * const p) const;
00042 int setcell(Cell *c, const char *valtoken, const char *nexttoken, const char *p);
00043 public:
00044 GetLongOpt(const char optmark = '-');
00045 ~GetLongOpt();
00046
00047 int parse(int argc, char * const *argv);
00048 int parse(char * const str, char * const p);
00049
00050 int enroll(const char * const opt, const OptType t,
00051 const char * const desc, const char * const val);
00052 const char *retrieve(const char * const opt) const;
00053
00054 void usage(std::ostream &outfile = std::cout) const;
00055 void usage(const char *str) { ustring = str; }
00056 };
00057
00058 }
00059
00060 #endif /* _GetLongOpt_h_ */
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