--- /dev/null
+/*
+ * AnyOption 1.3
+ *
+ * kishan at hackorama dot com www.hackorama.com JULY 2001
+ *
+ * + Acts as a common facade class for reading
+ * commandline options as well as options from
+ * an optionfile with delimited type value pairs
+ *
+ * + Handles the POSIX style single character options ( -w )
+ * as well as the newer GNU long options ( --width )
+ *
+ * + The option file assumes the traditional format of
+ * first character based comment lines and type value
+ * pairs with a delimiter , and flags which are not pairs
+ *
+ * # this is a coment
+ * # next line is an option value pair
+ * width : 100
+ * # next line is a flag
+ * noimages
+ *
+ * + Supports printing out Help and Usage
+ *
+ * + Why not just use getopt() ?
+ *
+ * getopt() Its a POSIX standard not part of ANSI-C.
+ * So it may not be available on platforms like Windows.
+ *
+ * + Why it is so long ?
+ *
+ * The actual code which does command line parsing
+ * and option file parsing are done in few methods.
+ * Most of the extra code are for providing a flexible
+ * common public interface to both a resourcefile and
+ * and command line supporting POSIX style and
+ * GNU long option as well as mixing of both.
+ *
+ * + Please see "anyoption.h" for public method descriptions
+ *
+ */
+
+/* Updated Auguest 2004
+ * Fix from Michael D Peters (mpeters at sandia.gov)
+ * to remove static local variables, allowing multiple instantiations
+ * of the reader (for using multiple configuration files). There is
+ * an error in the destructor when using multiple instances, so you
+ * cannot delete your objects (it will crash), but not calling the
+ * destructor only introduces a small memory leak, so I
+ * have not bothered tracking it down.
+ *
+ * Also updated to use modern C++ style headers, rather than
+ * depricated iostream.h (it was causing my compiler problems)
+*/
+
+/*
+ * Updated September 2006
+ * Fix from Boyan Asenov for a bug in mixing up option indexes
+ * leading to exception when mixing different options types
+ */
+
+#include "anyoption.h"
+
+AnyOption::AnyOption()
+{
+ init();
+}
+
+AnyOption::AnyOption(int maxopt)
+{
+ init( maxopt , maxopt );
+}
+
+AnyOption::AnyOption(int maxopt, int maxcharopt)
+{
+ init( maxopt , maxcharopt );
+}
+
+AnyOption::~AnyOption()
+{
+ if( mem_allocated )
+ cleanup();
+}
+
+void
+AnyOption::init()
+{
+ init( DEFAULT_MAXOPTS , DEFAULT_MAXOPTS );
+}
+
+void
+AnyOption::init(int maxopt, int maxcharopt )
+{
+
+ max_options = maxopt;
+ max_char_options = maxcharopt;
+ max_usage_lines = DEFAULT_MAXUSAGE;
+ usage_lines = 0 ;
+ argc = 0;
+ argv = NULL;
+ posix_style = true;
+ verbose = false;
+ filename = NULL;
+ appname = NULL;
+ option_counter = 0;
+ optchar_counter = 0;
+ new_argv = NULL;
+ new_argc = 0 ;
+ max_legal_args = 0 ;
+ command_set = false;
+ file_set = false;
+ values = NULL;
+ g_value_counter = 0;
+ mem_allocated = false;
+ command_set = false;
+ file_set = false;
+ opt_prefix_char = '-';
+ file_delimiter_char = ':';
+ file_comment_char = '#';
+ equalsign = '=';
+ comment = '#' ;
+ delimiter = ':' ;
+ endofline = '\n';
+ whitespace = ' ' ;
+ nullterminate = '\0';
+ set = false;
+ once = true;
+ hasoptions = false;
+ autousage = false;
+
+ strcpy( long_opt_prefix , "--" );
+
+ if( alloc() == false ){
+ cout << endl << "OPTIONS ERROR : Failed allocating memory" ;
+ cout << endl ;
+ cout << "Exiting." << endl ;
+ exit (0);
+ }
+}
+
+bool
+AnyOption::alloc()
+{
+ int i = 0 ;
+ int size = 0 ;
+
+ if( mem_allocated )
+ return true;
+
+ size = (max_options+1) * sizeof(const char*);
+ options = (const char**)malloc( size );
+ optiontype = (int*) malloc( (max_options+1)*sizeof(int) );
+ optionindex = (int*) malloc( (max_options+1)*sizeof(int) );
+ if( options == NULL || optiontype == NULL || optionindex == NULL )
+ return false;
+ else
+ mem_allocated = true;
+ for( i = 0 ; i < max_options ; i++ ){
+ options[i] = NULL;
+ optiontype[i] = 0 ;
+ optionindex[i] = -1 ;
+ }
+ optionchars = (char*) malloc( (max_char_options+1)*sizeof(char) );
+ optchartype = (int*) malloc( (max_char_options+1)*sizeof(int) );
+ optcharindex = (int*) malloc( (max_char_options+1)*sizeof(int) );
+ if( optionchars == NULL ||
+ optchartype == NULL ||
+ optcharindex == NULL )
+ {
+ mem_allocated = false;
+ return false;
+ }
+ for( i = 0 ; i < max_char_options ; i++ ){
+ optionchars[i] = '0';
+ optchartype[i] = 0 ;
+ optcharindex[i] = -1 ;
+ }
+
+ size = (max_usage_lines+1) * sizeof(const char*) ;
+ usage = (const char**) malloc( size );
+
+ if( usage == NULL ){
+ mem_allocated = false;
+ return false;
+ }
+ for( i = 0 ; i < max_usage_lines ; i++ )
+ usage[i] = NULL;
+
+ return true;
+}
+
+bool
+AnyOption::doubleOptStorage()
+{
+ options = (const char**)realloc( options,
+ ((2*max_options)+1) * sizeof( const char*) );
+ optiontype = (int*) realloc( optiontype ,
+ ((2 * max_options)+1)* sizeof(int) );
+ optionindex = (int*) realloc( optionindex,
+ ((2 * max_options)+1) * sizeof(int) );
+ if( options == NULL || optiontype == NULL || optionindex == NULL )
+ return false;
+ /* init new storage */
+ for( int i = max_options ; i < 2*max_options ; i++ ){
+ options[i] = NULL;
+ optiontype[i] = 0 ;
+ optionindex[i] = -1 ;
+ }
+ max_options = 2 * max_options ;
+ return true;
+}
+
+bool
+AnyOption::doubleCharStorage()
+{
+ optionchars = (char*) realloc( optionchars,
+ ((2*max_char_options)+1)*sizeof(char) );
+ optchartype = (int*) realloc( optchartype,
+ ((2*max_char_options)+1)*sizeof(int) );
+ optcharindex = (int*) realloc( optcharindex,
+ ((2*max_char_options)+1)*sizeof(int) );
+ if( optionchars == NULL ||
+ optchartype == NULL ||
+ optcharindex == NULL )
+ return false;
+ /* init new storage */
+ for( int i = max_char_options ; i < 2*max_char_options ; i++ ){
+ optionchars[i] = '0';
+ optchartype[i] = 0 ;
+ optcharindex[i] = -1 ;
+ }
+ max_char_options = 2 * max_char_options;
+ return true;
+}
+
+bool
+AnyOption::doubleUsageStorage()
+{
+ usage = (const char**)realloc( usage,
+ ((2*max_usage_lines)+1) * sizeof( const char*) );
+ if ( usage == NULL )
+ return false;
+ for( int i = max_usage_lines ; i < 2*max_usage_lines ; i++ )
+ usage[i] = NULL;
+ max_usage_lines = 2 * max_usage_lines ;
+ return true;
+
+}
+
+
+void
+AnyOption::cleanup()
+{
+ free (options);
+ free (optiontype);
+ free (optionindex);
+ free (optionchars);
+ free (optchartype);
+ free (optcharindex);
+ free (usage);
+ if( values != NULL )
+ free (values);
+ if( new_argv != NULL )
+ free (new_argv);
+}
+
+void
+AnyOption::setCommandPrefixChar( char _prefix )
+{
+ opt_prefix_char = _prefix;
+}
+
+void
+AnyOption::setCommandLongPrefix( char *_prefix )
+{
+ if( strlen( _prefix ) > MAX_LONG_PREFIX_LENGTH ){
+ *( _prefix + MAX_LONG_PREFIX_LENGTH ) = '\0';
+ }
+
+ strcpy (long_opt_prefix, _prefix);
+}
+
+void
+AnyOption::setFileCommentChar( char _comment )
+{
+ file_delimiter_char = _comment;
+}
+
+
+void
+AnyOption::setFileDelimiterChar( char _delimiter )
+{
+ file_comment_char = _delimiter ;
+}
+
+bool
+AnyOption::CommandSet()
+{
+ return( command_set );
+}
+
+bool
+AnyOption::FileSet()
+{
+ return( file_set );
+}
+
+void
+AnyOption::noPOSIX()
+{
+ posix_style = false;
+}
+
+bool
+AnyOption::POSIX()
+{
+ return posix_style;
+}
+
+
+void
+AnyOption::setVerbose()
+{
+ verbose = true ;
+}
+
+void
+AnyOption::printVerbose()
+{
+ if( verbose )
+ cout << endl ;
+}
+void
+AnyOption::printVerbose( const char *msg )
+{
+ if( verbose )
+ cout << msg ;
+}
+
+void
+AnyOption::printVerbose( char *msg )
+{
+ if( verbose )
+ cout << msg ;
+}
+
+void
+AnyOption::printVerbose( char ch )
+{
+ if( verbose )
+ cout << ch ;
+}
+
+bool
+AnyOption::hasOptions()
+{
+ return hasoptions;
+}
+
+void
+AnyOption::autoUsagePrint(bool _autousage)
+{
+ autousage = _autousage;
+}
+
+void
+AnyOption::useCommandArgs( int _argc, char **_argv )
+{
+ argc = _argc;
+ argv = _argv;
+ command_set = true;
+ appname = argv[0];
+ if(argc > 1) hasoptions = true;
+}
+
+void
+AnyOption::useFiileName( const char *_filename )
+{
+ filename = _filename;
+ file_set = true;
+}
+
+/*
+ * set methods for options
+ */
+
+void
+AnyOption::setCommandOption( const char *opt )
+{
+ addOption( opt , COMMAND_OPT );
+ g_value_counter++;
+}
+
+void
+AnyOption::setCommandOption( char opt )
+{
+ addOption( opt , COMMAND_OPT );
+ g_value_counter++;
+}
+
+void
+AnyOption::setCommandOption( const char *opt , char optchar )
+{
+ addOption( opt , COMMAND_OPT );
+ addOption( optchar , COMMAND_OPT );
+ g_value_counter++;
+}
+
+void
+AnyOption::setCommandFlag( const char *opt )
+{
+ addOption( opt , COMMAND_FLAG );
+ g_value_counter++;
+}
+
+void
+AnyOption::setCommandFlag( char opt )
+{
+ addOption( opt , COMMAND_FLAG );
+ g_value_counter++;
+}
+
+void
+AnyOption::setCommandFlag( const char *opt , char optchar )
+{
+ addOption( opt , COMMAND_FLAG );
+ addOption( optchar , COMMAND_FLAG );
+ g_value_counter++;
+}
+
+void
+AnyOption::setFileOption( const char *opt )
+{
+ addOption( opt , FILE_OPT );
+ g_value_counter++;
+}
+
+void
+AnyOption::setFileOption( char opt )
+{
+ addOption( opt , FILE_OPT );
+ g_value_counter++;
+}
+
+void
+AnyOption::setFileOption( const char *opt , char optchar )
+{
+ addOption( opt , FILE_OPT );
+ addOption( optchar, FILE_OPT );
+ g_value_counter++;
+}
+
+void
+AnyOption::setFileFlag( const char *opt )
+{
+ addOption( opt , FILE_FLAG );
+ g_value_counter++;
+}
+
+void
+AnyOption::setFileFlag( char opt )
+{
+ addOption( opt , FILE_FLAG );
+ g_value_counter++;
+}
+
+void
+AnyOption::setFileFlag( const char *opt , char optchar )
+{
+ addOption( opt , FILE_FLAG );
+ addOption( optchar , FILE_FLAG );
+ g_value_counter++;
+}
+
+void
+AnyOption::setOption( const char *opt )
+{
+ addOption( opt , COMMON_OPT );
+ g_value_counter++;
+}
+
+void
+AnyOption::setOption( char opt )
+{
+ addOption( opt , COMMON_OPT );
+ g_value_counter++;
+}
+
+void
+AnyOption::setOption( const char *opt , char optchar )
+{
+ addOption( opt , COMMON_OPT );
+ addOption( optchar , COMMON_OPT );
+ g_value_counter++;
+}
+
+void
+AnyOption::setFlag( const char *opt )
+{
+ addOption( opt , COMMON_FLAG );
+ g_value_counter++;
+}
+
+void
+AnyOption::setFlag( const char opt )
+{
+ addOption( opt , COMMON_FLAG );
+ g_value_counter++;
+}
+
+void
+AnyOption::setFlag( const char *opt , char optchar )
+{
+ addOption( opt , COMMON_FLAG );
+ addOption( optchar , COMMON_FLAG );
+ g_value_counter++;
+}
+
+void
+AnyOption::addOption( const char *opt, int type )
+{
+ if( option_counter >= max_options ){
+ if( doubleOptStorage() == false ){
+ addOptionError( opt );
+ return;
+ }
+ }
+ options[ option_counter ] = opt ;
+ optiontype[ option_counter ] = type ;
+ optionindex[ option_counter ] = g_value_counter;
+ option_counter++;
+}
+
+void
+AnyOption::addOption( char opt, int type )
+{
+ if( !POSIX() ){
+ printVerbose("Ignoring the option character \"");
+ printVerbose( opt );
+ printVerbose( "\" ( POSIX options are turned off )" );
+ printVerbose();
+ return;
+ }
+
+
+ if( optchar_counter >= max_char_options ){
+ if( doubleCharStorage() == false ){
+ addOptionError( opt );
+ return;
+ }
+ }
+ optionchars[ optchar_counter ] = opt ;
+ optchartype[ optchar_counter ] = type ;
+ optcharindex[ optchar_counter ] = g_value_counter;
+ optchar_counter++;
+}
+
+void
+AnyOption::addOptionError( const char *opt )
+{
+ cout << endl ;
+ cout << "OPTIONS ERROR : Failed allocating extra memory " << endl ;
+ cout << "While adding the option : \""<< opt << "\"" << endl;
+ cout << "Exiting." << endl ;
+ cout << endl ;
+ exit(0);
+}
+
+void
+AnyOption::addOptionError( char opt )
+{
+ cout << endl ;
+ cout << "OPTIONS ERROR : Failed allocating extra memory " << endl ;
+ cout << "While adding the option: \""<< opt << "\"" << endl;
+ cout << "Exiting." << endl ;
+ cout << endl ;
+ exit(0);
+}
+
+void
+AnyOption::processOptions()
+{
+ if( ! valueStoreOK() )
+ return;
+}
+
+void
+AnyOption::processCommandArgs(int max_args)
+{
+ max_legal_args = max_args;
+ processCommandArgs();
+}
+
+void
+AnyOption::processCommandArgs( int _argc, char **_argv, int max_args )
+{
+ max_legal_args = max_args;
+ processCommandArgs( _argc, _argv );
+}
+
+void
+AnyOption::processCommandArgs( int _argc, char **_argv )
+{
+ useCommandArgs( _argc, _argv );
+ processCommandArgs();
+}
+
+void
+AnyOption::processCommandArgs()
+{
+ if( ! ( valueStoreOK() && CommandSet() ) )
+ return;
+
+ if( max_legal_args == 0 )
+ max_legal_args = argc;
+ new_argv = (int*) malloc( (max_legal_args+1) * sizeof(int) );
+ for( int i = 1 ; i < argc ; i++ ){/* ignore first argv */
+ if( argv[i][0] == long_opt_prefix[0] &&
+ argv[i][1] == long_opt_prefix[1] ) { /* long GNU option */
+ int match_at = parseGNU( argv[i]+2 ); /* skip -- */
+ if( match_at >= 0 && i < argc-1 ) /* found match */
+ setValue( options[match_at] , argv[++i] );
+ }else if( argv[i][0] == opt_prefix_char ) { /* POSIX char */
+ if( POSIX() ){
+ char ch = parsePOSIX( argv[i]+1 );/* skip - */
+ if( ch != '0' && i < argc-1 ) /* matching char */
+ setValue( ch , argv[++i] );
+ } else { /* treat it as GNU option with a - */
+ int match_at = parseGNU( argv[i]+1 ); /* skip - */
+ if( match_at >= 0 && i < argc-1 ) /* found match */
+ setValue( options[match_at] , argv[++i] );
+ }
+ }else { /* not option but an argument keep index */
+ if( new_argc < max_legal_args ){
+ new_argv[ new_argc ] = i ;
+ new_argc++;
+ }else{ /* ignore extra arguments */
+ printVerbose( "Ignoring extra argument: " );
+ printVerbose( argv[i] );
+ printVerbose( );
+ printAutoUsage();
+ }
+ printVerbose( "Unknown command argument option : " );
+ printVerbose( argv[i] );
+ printVerbose( );
+ printAutoUsage();
+ }
+ }
+}
+
+char
+AnyOption::parsePOSIX( char* arg )
+{
+
+ for( unsigned int i = 0 ; i < strlen(arg) ; i++ ){
+ char ch = arg[i] ;
+ if( matchChar(ch) ) { /* keep matching flags till an option */
+ /*if last char argv[++i] is the value */
+ if( i == strlen(arg)-1 ){
+ return ch;
+ }else{/* else the rest of arg is the value */
+ i++; /* skip any '=' and ' ' */
+ while( arg[i] == whitespace
+ || arg[i] == equalsign )
+ i++;
+ setValue( ch , arg+i );
+ return '0';
+ }
+ }
+ }
+ printVerbose( "Unknown command argument option : " );
+ printVerbose( arg );
+ printVerbose( );
+ printAutoUsage();
+ return '0';
+}
+
+int
+AnyOption::parseGNU( char *arg )
+{
+ int split_at = 0;
+ /* if has a '=' sign get value */
+ for( unsigned int i = 0 ; i < strlen(arg) ; i++ ){
+ if(arg[i] == equalsign ){
+ split_at = i ; /* store index */
+ i = strlen(arg); /* get out of loop */
+ }
+ }
+ if( split_at > 0 ){ /* it is an option value pair */
+ char* tmp = (char*) malloc( (split_at+1)*sizeof(char) );
+ for( int i = 0 ; i < split_at ; i++ )
+ tmp[i] = arg[i];
+ tmp[split_at] = '\0';
+
+ if ( matchOpt( tmp ) >= 0 ){
+ setValue( options[matchOpt(tmp)] , arg+split_at+1 );
+ free (tmp);
+ }else{
+ printVerbose( "Unknown command argument option : " );
+ printVerbose( arg );
+ printVerbose( );
+ printAutoUsage();
+ free (tmp);
+ return -1;
+ }
+ }else{ /* regular options with no '=' sign */
+ return matchOpt(arg);
+ }
+ return -1;
+}
+
+
+int
+AnyOption::matchOpt( char *opt )
+{
+ for( int i = 0 ; i < option_counter ; i++ ){
+ if( strcmp( options[i], opt ) == 0 ){
+ if( optiontype[i] == COMMON_OPT ||
+ optiontype[i] == COMMAND_OPT )
+ { /* found option return index */
+ return i;
+ }else if( optiontype[i] == COMMON_FLAG ||
+ optiontype[i] == COMMAND_FLAG )
+ { /* found flag, set it */
+ setFlagOn( opt );
+ return -1;
+ }
+ }
+ }
+ printVerbose( "Unknown command argument option : " );
+ printVerbose( opt ) ;
+ printVerbose( );
+ printAutoUsage();
+ return -1;
+}
+bool
+AnyOption::matchChar( char c )
+{
+ for( int i = 0 ; i < optchar_counter ; i++ ){
+ if( optionchars[i] == c ) { /* found match */
+ if(optchartype[i] == COMMON_OPT ||
+ optchartype[i] == COMMAND_OPT )
+ { /* an option store and stop scanning */
+ return true;
+ }else if( optchartype[i] == COMMON_FLAG ||
+ optchartype[i] == COMMAND_FLAG ) { /* a flag store and keep scanning */
+ setFlagOn( c );
+ return false;
+ }
+ }
+ }
+ printVerbose( "Unknown command argument option : " );
+ printVerbose( c ) ;
+ printVerbose( );
+ printAutoUsage();
+ return false;
+}
+
+bool
+AnyOption::valueStoreOK( )
+{
+ int size= 0;
+ if( !set ){
+ if( g_value_counter > 0 ){
+ size = g_value_counter * sizeof(char*);
+ values = (char**)malloc( size );
+ for( int i = 0 ; i < g_value_counter ; i++)
+ values[i] = NULL;
+ set = true;
+ }
+ }
+ return set;
+}
+
+/*
+ * public get methods
+ */
+char*
+AnyOption::getValue( const char *option )
+{
+ if( !valueStoreOK() )
+ return NULL;
+
+ for( int i = 0 ; i < option_counter ; i++ ){
+ if( strcmp( options[i], option ) == 0 )
+ return values[ optionindex[i] ];
+ }
+ return NULL;
+}
+
+bool
+AnyOption::getFlag( const char *option )
+{
+ if( !valueStoreOK() )
+ return false;
+ for( int i = 0 ; i < option_counter ; i++ ){
+ if( strcmp( options[i], option ) == 0 )
+ return findFlag( values[ optionindex[i] ] );
+ }
+ return false;
+}
+
+char*
+AnyOption::getValue( char option )
+{
+ if( !valueStoreOK() )
+ return NULL;
+ for( int i = 0 ; i < optchar_counter ; i++ ){
+ if( optionchars[i] == option )
+ return values[ optcharindex[i] ];
+ }
+ return NULL;
+}
+
+bool
+AnyOption::getFlag( char option )
+{
+ if( !valueStoreOK() )
+ return false;
+ for( int i = 0 ; i < optchar_counter ; i++ ){
+ if( optionchars[i] == option )
+ return findFlag( values[ optcharindex[i] ] ) ;
+ }
+ return false;
+}
+
+bool
+AnyOption::findFlag( char* val )
+{
+ if( val == NULL )
+ return false;
+
+ if( strcmp( TRUE_FLAG , val ) == 0 )
+ return true;
+
+ return false;
+}
+
+/*
+ * private set methods
+ */
+bool
+AnyOption::setValue( const char *option , char *value )
+{
+ if( !valueStoreOK() )
+ return false;
+ for( int i = 0 ; i < option_counter ; i++ ){
+ if( strcmp( options[i], option ) == 0 ){
+ values[ optionindex[i] ] = (char*) malloc((strlen(value)+1)*sizeof(char));
+ strcpy( values[ optionindex[i] ], value );
+ return true;
+ }
+ }
+ return false;
+}
+
+bool
+AnyOption::setFlagOn( const char *option )
+{
+ if( !valueStoreOK() )
+ return false;
+ for( int i = 0 ; i < option_counter ; i++ ){
+ if( strcmp( options[i], option ) == 0 ){
+ values[ optionindex[i] ] = (char*) malloc((strlen(TRUE_FLAG)+1)*sizeof(char));
+ strcpy( values[ optionindex[i] ] , TRUE_FLAG );
+ return true;
+ }
+ }
+ return false;
+}
+
+bool
+AnyOption::setValue( char option , char *value )
+{
+ if( !valueStoreOK() )
+ return false;
+ for( int i = 0 ; i < optchar_counter ; i++ ){
+ if( optionchars[i] == option ){
+ values[ optcharindex[i] ] = (char*) malloc((strlen(value)+1)*sizeof(char));
+ strcpy( values[ optcharindex[i] ], value );
+ return true;
+ }
+ }
+ return false;
+}
+
+bool
+AnyOption::setFlagOn( char option )
+{
+ if( !valueStoreOK() )
+ return false;
+ for( int i = 0 ; i < optchar_counter ; i++ ){
+ if( optionchars[i] == option ){
+ values[ optcharindex[i] ] = (char*) malloc((strlen(TRUE_FLAG)+1)*sizeof(char));
+ strcpy( values[ optcharindex[i] ] , TRUE_FLAG );
+ return true;
+ }
+ }
+ return false;
+}
+
+
+int
+AnyOption::getArgc( )
+{
+ return new_argc;
+}
+
+char*
+AnyOption::getArgv( int index )
+{
+ if( index < new_argc ){
+ return ( argv[ new_argv[ index ] ] );
+ }
+ return NULL;
+}
+
+/* dotfile sub routines */
+
+bool
+AnyOption::processFile()
+{
+ if( ! (valueStoreOK() && FileSet()) )
+ return false;
+ return ( consumeFile(readFile()) );
+}
+
+bool
+AnyOption::processFile( const char *filename )
+{
+ useFiileName(filename );
+ return ( processFile() );
+}
+
+char*
+AnyOption::readFile()
+{
+ return ( readFile(filename) );
+}
+
+/*
+ * read the file contents to a character buffer
+ */
+
+char*
+AnyOption::readFile( const char* fname )
+{
+ int length;
+ char *buffer;
+ ifstream is;
+ is.open ( fname , ifstream::in );
+ if( ! is.good() ){
+ is.close();
+ return NULL;
+ }
+ is.seekg (0, ios::end);
+ length = is.tellg();
+ is.seekg (0, ios::beg);
+ buffer = (char*) malloc(length*sizeof(char));
+ is.read (buffer,length);
+ is.close();
+ return buffer;
+}
+
+/*
+ * scans a char* buffer for lines that does not
+ * start with the specified comment character.
+ */
+bool
+AnyOption::consumeFile( char *buffer )
+{
+
+ if( buffer == NULL )
+ return false;
+
+ char *cursor = buffer;/* preserve the ptr */
+ char *pline = NULL ;
+ int linelength = 0;
+ bool newline = true;
+ for( unsigned int i = 0 ; i < strlen( buffer ) ; i++ ){
+ if( *cursor == endofline ) { /* end of line */
+ if( pline != NULL ) /* valid line */
+ processLine( pline, linelength );
+ pline = NULL;
+ newline = true;
+ }else if( newline ){ /* start of line */
+ newline = false;
+ if( (*cursor != comment ) ){ /* not a comment */
+ pline = cursor ;
+ linelength = 0 ;
+ }
+ }
+ cursor++; /* keep moving */
+ linelength++;
+ }
+ free (buffer);
+ return true;
+}
+
+
+/*
+ * find a valid type value pair separated by a delimiter
+ * character and pass it to valuePairs()
+ * any line which is not valid will be considered a value
+ * and will get passed on to justValue()
+ *
+ * assuming delimiter is ':' the behaviour will be,
+ *
+ * width:10 - valid pair valuePairs( width, 10 );
+ * width : 10 - valid pair valuepairs( width, 10 );
+ *
+ * :::: - not valid
+ * width - not valid
+ * :10 - not valid
+ * width: - not valid
+ * :: - not valid
+ * : - not valid
+ *
+ */
+
+void
+AnyOption::processLine( char *theline, int length )
+{
+ bool found = false;
+ char *pline = (char*) malloc( (length+1)*sizeof(char) );
+ for( int i = 0 ; i < length ; i ++ )
+ pline[i]= *(theline++);
+ pline[length] = nullterminate;
+ char *cursor = pline ; /* preserve the ptr */
+ if( *cursor == delimiter || *(cursor+length-1) == delimiter ){
+ justValue( pline );/* line with start/end delimiter */
+ }else{
+ for( int i = 1 ; i < length-1 && !found ; i++){/* delimiter */
+ if( *cursor == delimiter ){
+ *(cursor-1) = nullterminate; /* two strings */
+ found = true;
+ valuePairs( pline , cursor+1 );
+ }
+ cursor++;
+ }
+ cursor++;
+ if( !found ) /* not a pair */
+ justValue( pline );
+ }
+ free (pline);
+}
+
+/*
+ * removes trailing and preceeding whitespaces from a string
+ */
+char*
+AnyOption::chomp( char *str )
+{
+ while( *str == whitespace )
+ str++;
+ char *end = str+strlen(str)-1;
+ while( *end == whitespace )
+ end--;
+ *(end+1) = nullterminate;
+ return str;
+}
+
+void
+AnyOption::valuePairs( char *type, char *value )
+{
+ if ( strlen(chomp(type)) == 1 ){ /* this is a char option */
+ for( int i = 0 ; i < optchar_counter ; i++ ){
+ if( optionchars[i] == type[0] ){ /* match */
+ if( optchartype[i] == COMMON_OPT ||
+ optchartype[i] == FILE_OPT )
+ {
+ setValue( type[0] , chomp(value) );
+ return;
+ }
+ }
+ }
+ }
+ /* if no char options matched */
+ for( int i = 0 ; i < option_counter ; i++ ){
+ if( strcmp( options[i], type ) == 0 ){ /* match */
+ if( optiontype[i] == COMMON_OPT ||
+ optiontype[i] == FILE_OPT )
+ {
+ setValue( type , chomp(value) );
+ return;
+ }
+ }
+ }
+ printVerbose( "Unknown option in resourcefile : " );
+ printVerbose( type );
+ printVerbose( );
+}
+
+void
+AnyOption::justValue( char *type )
+{
+
+ if ( strlen(chomp(type)) == 1 ){ /* this is a char option */
+ for( int i = 0 ; i < optchar_counter ; i++ ){
+ if( optionchars[i] == type[0] ){ /* match */
+ if( optchartype[i] == COMMON_FLAG ||
+ optchartype[i] == FILE_FLAG )
+ {
+ setFlagOn( type[0] );
+ return;
+ }
+ }
+ }
+ }
+ /* if no char options matched */
+ for( int i = 0 ; i < option_counter ; i++ ){
+ if( strcmp( options[i], type ) == 0 ){ /* match */
+ if( optiontype[i] == COMMON_FLAG ||
+ optiontype[i] == FILE_FLAG )
+ {
+ setFlagOn( type );
+ return;
+ }
+ }
+ }
+ printVerbose( "Unknown option in resourcefile : " );
+ printVerbose( type );
+ printVerbose( );
+}
+
+/*
+ * usage and help
+ */
+
+
+void
+AnyOption::printAutoUsage()
+{
+ if( autousage ) printUsage();
+}
+
+void
+AnyOption::printUsage()
+{
+
+ if( once ) {
+ once = false ;
+ cout << endl ;
+ for( int i = 0 ; i < usage_lines ; i++ )
+ cout << usage[i] << endl ;
+ cout << endl ;
+ }
+}
+
+
+void
+AnyOption::addUsage( const char *line )
+{
+ if( usage_lines >= max_usage_lines ){
+ if( doubleUsageStorage() == false ){
+ addUsageError( line );
+ exit(1);
+ }
+ }
+ usage[ usage_lines ] = line ;
+ usage_lines++;
+}
+
+void
+AnyOption::addUsageError( const char *line )
+{
+ cout << endl ;
+ cout << "OPTIONS ERROR : Failed allocating extra memory " << endl ;
+ cout << "While adding the usage/help : \""<< line << "\"" << endl;
+ cout << "Exiting." << endl ;
+ cout << endl ;
+ exit(0);
+
+}
--- /dev/null
+#ifndef _ANYOPTION_H
+#define _ANYOPTION_H
+
+#include <iostream>
+#include <fstream>
+#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();
+ AnyOption(int maxoptions );
+ 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( char *_prefix ); /* '--' in "--width" */
+ void setFileCommentChar( char _comment ); /* '#' in shellscripts */
+ void setFileDelimiterChar( char _delimiter );/* ':' in "width : 100" */
+
+ /*
+ * provide the input for the options
+ * like argv[] for commndline 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 alo 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 commandline and
+ * the optionfile, or can belong only to either of
+ * commandline and optionfile
+ *
+ * following set methods, handle all the aboove
+ * cases of options.
+ */
+
+ /* options comman 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 commandline 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, registerd 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();
+ char* getArgv( int index );
+ bool hasOptions();
+
+private: /* the hidden data structure */
+ int argc; /* commandline arg count */
+ char **argv; /* commndline 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 reseverd */
+ 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]; /* '--' 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 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);
+ void addOptionError( char opt);
+ bool findFlag( char* value );
+ void addUsageError( const char *line );
+ bool CommandSet();
+ bool FileSet();
+ bool POSIX();
+
+ 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 );
+ void printVerbose( char *msg );
+ void printVerbose( char ch );
+ void printVerbose( );
+
+
+};
+
+#endif /* ! _ANYOPTION_H */
projects / telemeta.git / commitdiff