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 * 1.1 (the "License"); you may not use this file except in compliance with
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 *
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 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Netscape security libraries.
 *
 * The Initial Developer of the Original Code is
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 * Portions created by the Initial Developer are Copyright (C) 1994-2000
 * the Initial Developer. All Rights Reserved.
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 *
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 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#ifndef _CMDUTIL_H_
#define _CMDUTIL_H_

#include <stdio.h>
#include "nspr.h"
#include "nssbase.h"

typedef int 
(* CMD_PPFunc)(PRFileDesc *out, NSSItem *item, char *msg, int level);


/*
 * Command Line Parsing routines
 *
 * The attempt here is to provide common functionality for command line
 * parsing across an array of tools.  The tools should obey the historical
 * rules of:
 *
 * (1) one command per line,
 * (2) the command should be uppercase,
 * (3) options should be lowercase,
 * (4) a short usage statement is presented in case of error,
 * (5) a long usage statement is given by -? or --help
 */

/* To aid in formatting usage output.  XXX Uh, why exposed? */
typedef struct cmdPrintStateStr cmdPrintState;

typedef enum {
    CMDArgReq = 0,
    CMDArgOpt,
    CMDNoArg
} CMDArg;

struct cmdCommandLineArgStr {
    char     c;      /* one-character alias for flag    */
    char    *s;      /* string alias for flag           */
    CMDArg   argUse; /* flag takes an argument          */
    char    *arg;    /* argument given for flag         */
    PRBool   on;     /* flag was issued at command-line */
    int      req;    /* required arguments for commands */
    int      opt;    /* optional arguments for commands */
};

struct cmdCommandLineOptStr {
    char     c;      /* one-character alias for flag    */
    char    *s;      /* string alias for flag           */
    CMDArg   argUse; /* flag takes an argument          */
    char    *arg;    /* argument given for flag         */
    PRBool   on;     /* flag was issued at command-line */
};

typedef struct cmdCommandLineArgStr cmdCommandLineArg;
typedef struct cmdCommandLineOptStr cmdCommandLineOpt;

struct cmdCommandStr {
    int ncmd;
    int nopt;
    cmdCommandLineArg *cmd;
    cmdCommandLineOpt *opt;
};

typedef struct cmdCommandStr cmdCommand;

int 
CMD_ParseCommandLine(int argc, char **argv, char *progName, cmdCommand *cmd);

typedef void 
(* cmdUsageCallback)(cmdPrintState *, int, PRBool, PRBool, PRBool);

#define CMDBIT(n) (1<<n)

void 
CMD_Usage(char *progName, cmdCommand *cmd);

void 
CMD_LongUsage(char *progName, cmdCommand *cmd, cmdUsageCallback use);

void 
CMD_PrintUsageString(cmdPrintState *ps, char *str);

#endif /* _CMDUTIL_H_ */