#ifndef _ANYOPTION_H
#define _ANYOPTION_H
#define _CRT_SECURE_NO_WARNINGS /* Microsoft C/C++ Compiler: Disable C4996 \
warnings for security-enhanced CRT \
functions */
#include <cstring>
#include <fstream>
#include <iostream>
#include <stdlib.h>
#include <string>
#define COMMON_OPT 1
#define COMMAND_OPT 2
#define FILE_OPT 3
#define COMMON_FLAG 4
#define COMMAND_FLAG 5
#define FILE_FLAG 6
#define COMMAND_OPTION_TYPE 1
#define COMMAND_FLAG_TYPE 2
#define FILE_OPTION_TYPE 3
#define FILE_FLAG_TYPE 4
#define UNKNOWN_TYPE 5
#define DEFAULT_MAXOPTS 10
#define MAX_LONG_PREFIX_LENGTH 2
#define DEFAULT_MAXUSAGE 3
#define DEFAULT_MAXHELP 10
#define TRUE_FLAG "true"
using namespace std;
class AnyOption {
public: /* the public interface */
AnyOption();
explicit AnyOption(int maxoptions);
explicit AnyOption(int maxoptions, int maxcharoptions);
~AnyOption();
/*
* following set methods specifies the
* special characters and delimiters
* if not set traditional defaults will be used
*/
void setCommandPrefixChar(char _prefix); /* '-' in "-w" */
void setCommandLongPrefix(const char *_prefix); /* '--' in "--width" */
void setFileCommentChar(char _comment); /* '#' in shell scripts */
void setFileDelimiterChar(char _delimiter); /* ':' in "width : 100" */
/*
* provide the input for the options
* like argv[] for commnd line and the
* option file name to use;
*/
void useCommandArgs(int _argc, char **_argv);
void useFiileName(const char *_filename);
/*
* turn off the POSIX style options
* this means anything starting with a '-' or "--"
* will be considered a valid option
* which also means you cannot add a bunch of
* POIX options chars together like "-lr" for "-l -r"
*
*/
void noPOSIX();
/*
* prints warning verbose if you set anything wrong
*/
void setVerbose();
/*
* there are two types of options
*
* Option - has an associated value ( -w 100 )
* Flag - no value, just a boolean flag ( -nogui )
*
* the options can be either a string ( GNU style )
* or a character ( traditional POSIX style )
* or both ( --width, -w )
*
* the options can be common to the command line and
* the option file, or can belong only to either of
* command line and option file
*
* following set methods, handle all the above
* cases of options.
*/
/* options command to command line and option file */
void setOption(const char *opt_string);
void setOption(char opt_char);
void setOption(const char *opt_string, char opt_char);
void setFlag(const char *opt_string);
void setFlag(char opt_char);
void setFlag(const char *opt_string, char opt_char);
/* options read from command line only */
void setCommandOption(const char *opt_string);
void setCommandOption(char opt_char);
void setCommandOption(const char *opt_string, char opt_char);
void setCommandFlag(const char *opt_string);
void setCommandFlag(char opt_char);
void setCommandFlag(const char *opt_string, char opt_char);
/* options read from an option file only */
void setFileOption(const char *opt_string);
void setFileOption(char opt_char);
void setFileOption(const char *opt_string, char opt_char);
void setFileFlag(const char *opt_string);
void setFileFlag(char opt_char);
void setFileFlag(const char *opt_string, char opt_char);
/*
* process the options, registered using
* useCommandArgs() and useFileName();
*/
void processOptions();
void processCommandArgs();
void processCommandArgs(int max_args);
bool processFile();
/*
* process the specified options
*/
void processCommandArgs(int _argc, char **_argv);
void processCommandArgs(int _argc, char **_argv, int max_args);
bool processFile(const char *_filename);
/*
* get the value of the options
* will return NULL if no value is set
*/
char *getValue(const char *_option);
bool getFlag(const char *_option);
char *getValue(char _optchar);
bool getFlag(char _optchar);
/*
* Print Usage
*/
void printUsage();
void printAutoUsage();
void addUsage(const char *line);
void printHelp();
/* print auto usage printing for unknown options or flag */
void autoUsagePrint(bool flag);
/*
* get the argument count and arguments sans the options
*/
int getArgc() const;
char *getArgv(int index) const;
bool hasOptions() const;
private: /* the hidden data structure */
int argc; /* command line arg count */
char **argv; /* commnd line args */
const char *filename; /* the option file */
char *appname; /* the application name from argv[0] */
int *new_argv; /* arguments sans options (index to argv) */
int new_argc; /* argument count sans the options */
int max_legal_args; /* ignore extra arguments */
/* option strings storage + indexing */
int max_options; /* maximum number of options */
const char **options; /* storage */
int *optiontype; /* type - common, command, file */
int *optionindex; /* index into value storage */
int option_counter; /* counter for added options */
/* option chars storage + indexing */
int max_char_options; /* maximum number options */
char *optionchars; /* storage */
int *optchartype; /* type - common, command, file */
int *optcharindex; /* index into value storage */
int optchar_counter; /* counter for added options */
/* values */
char **values; /* common value storage */
int g_value_counter; /* globally updated value index LAME! */
/* help and usage */
const char **usage; /* usage */
int max_usage_lines; /* max usage lines reserved */
int usage_lines; /* number of usage lines */
bool command_set; /* if argc/argv were provided */
bool file_set; /* if a filename was provided */
bool mem_allocated; /* if memory allocated in init() */
bool posix_style; /* enables to turn off POSIX style options */
bool verbose; /* silent|verbose */
bool print_usage; /* usage verbose */
bool print_help; /* help verbose */
char opt_prefix_char; /* '-' in "-w" */
char long_opt_prefix[MAX_LONG_PREFIX_LENGTH + 1]; /* '--' in "--width" */
char file_delimiter_char; /* ':' in width : 100 */
char file_comment_char; /* '#' in "#this is a comment" */
char equalsign;
char comment;
char delimiter;
char endofline;
char whitespace;
char nullterminate;
bool set; // was static member
bool once; // was static member
bool hasoptions;
bool autousage;
private: /* the hidden utils */
void init();
void init(int maxopt, int maxcharopt);
bool alloc();
void allocValues(int index, size_t length);
void cleanup();
bool valueStoreOK();
/* grow storage arrays as required */
bool doubleOptStorage();
bool doubleCharStorage();
bool doubleUsageStorage();
bool setValue(const char *option, char *value);
bool setFlagOn(const char *option);
bool setValue(char optchar, char *value);
bool setFlagOn(char optchar);
void addOption(const char *option, int type);
void addOption(char optchar, int type);
void addOptionError(const char *opt) const;
void addOptionError(char opt) const;
bool findFlag(char *value);
void addUsageError(const char *line);
bool CommandSet() const;
bool FileSet() const;
bool POSIX() const;
char parsePOSIX(char *arg);
int parseGNU(char *arg);
bool matchChar(char c);
int matchOpt(char *opt);
/* dot file methods */
char *readFile();
char *readFile(const char *fname);
bool consumeFile(char *buffer);
void processLine(char *theline, int length);
char *chomp(char *str);
void valuePairs(char *type, char *value);
void justValue(char *value);
void printVerbose(const char *msg) const;
void printVerbose(char *msg) const;
void printVerbose(char ch) const;
void printVerbose() const;
};
#endif /* ! _ANYOPTION_H */