Example #1
0
/**
   The set builtin. Creates, updates and erases environment variables
   and environemnt variable arrays.
*/
static int builtin_set( parser_t &parser, wchar_t **argv ) 
{
	
	/**
	   Variables used for parsing the argument list
	*/
	static const struct woption
		long_options[] = 
		{
			{ 
				L"export", no_argument, 0, 'x' 
			}
			,
			{ 
				L"global", no_argument, 0, 'g' 
			}
			,
			{ 
				L"local", no_argument, 0, 'l'  
			}
			,
			{ 
				L"erase", no_argument, 0, 'e'  
			}
			,
			{ 
				L"names", no_argument, 0, 'n' 
			} 
			,
			{ 
				L"unexport", no_argument, 0, 'u' 
			} 
			,
			{ 
				L"universal", no_argument, 0, 'U'
			}
            ,
			{ 
				L"long", no_argument, 0, 'L'
			} 
			,
			{ 
				L"query", no_argument, 0, 'q' 
			} 
			,
			{ 
				L"help", no_argument, 0, 'h' 
			} 
			,
			{ 
				0, 0, 0, 0 
			}
		}
	;
	
	const wchar_t *short_options = L"+xglenuULqh";

	int argc = builtin_count_args(argv);

	/*
	  Flags to set the work mode
	*/
	int local = 0, global = 0, exportv = 0;
	int erase = 0, list = 0, unexport=0;
	int universal = 0, query=0;
	bool shorten_ok = true;

	/*
	  Variables used for performing the actual work
	*/
	wchar_t *dest = 0;
	int retcode=0;
	int scope;
	int slice=0;
	int i;
	
	wchar_t *bad_char;
	
	
	/* Parse options to obtain the requested operation and the modifiers */
	woptind = 0;
	while (1) 
	{
		int c = wgetopt_long(argc, argv, short_options, long_options, 0);

		if (c == -1) 
		{
			break;
		}
    
		switch(c) 
		{
			case 0:
				break;

			case 'e':
				erase = 1;
				break;

			case 'n':
				list = 1;
				break;

			case 'x':
				exportv = 1;
				break;

			case 'l':
				local = 1;
				break;

			case 'g':
				global = 1;
				break;

			case 'u':
				unexport = 1;
				break;

			case 'U':
				universal = 1;
				break;
            
            case 'L':
                shorten_ok = false;
                break;

			case 'q':
				query = 1;
				break;

			case 'h':
				builtin_print_help( parser, argv[0], stdout_buffer );
				return 0;

			case '?':
				builtin_unknown_option( parser, argv[0], argv[woptind-1] );
				return 1;

			default:
				break;
		}
	}

	/*
	  Ok, all arguments have been parsed, let's validate them
	*/

	/*
	  If we are checking the existance of a variable (-q) we can not
	  also specify scope
	*/

	if( query && (erase || list) )
	{
		append_format(stderr_buffer,
				  BUILTIN_ERR_COMBO,
				  argv[0] );
		
		builtin_print_help( parser, argv[0], stderr_buffer );
		return 1;
	}
	

	/* We can't both list and erase varaibles */
	if( erase && list ) 
	{
		append_format(stderr_buffer,
				  BUILTIN_ERR_COMBO,
				  argv[0] );		

		builtin_print_help( parser, argv[0], stderr_buffer );
		return 1;
	}

	/*
	  Variables can only have one scope
	*/
	if( local + global + universal > 1 ) 
	{
		append_format(stderr_buffer,
				   BUILTIN_ERR_GLOCAL,
				   argv[0] );
		builtin_print_help( parser, argv[0], stderr_buffer );
		return 1;
	}

	/*
	  Variables can only have one export status
	*/
	if( exportv && unexport ) 
	{
		append_format(stderr_buffer,
				   BUILTIN_ERR_EXPUNEXP,
				   argv[0] );
		builtin_print_help( parser, argv[0], stderr_buffer );
		return 1;
	}

	/*
	  Calculate the scope value for variable assignement
	*/
	scope = (local ? ENV_LOCAL : 0) | (global ? ENV_GLOBAL : 0) | (exportv ? ENV_EXPORT : 0) | (unexport ? ENV_UNEXPORT : 0) | (universal ? ENV_UNIVERSAL:0) | ENV_USER; 

	if( query )
	{
		/*
		  Query mode. Return the number of variables that do not exist
		  out of the specified variables.
		*/
		int i;
		for( i=woptind; i<argc; i++ )
		{
			wchar_t *arg = argv[i];
			int slice=0;

			if( !(dest = wcsdup(arg)))
			{
				DIE_MEM();		
			}

			if( wcschr( dest, L'[' ) )
			{
				slice = 1;
				*wcschr( dest, L'[' )=0;
			}
			
			if( slice )
			{
				std::vector<long> indexes;
				wcstring_list_t result;
				size_t j;
				
                env_var_t dest_str = env_get_string(dest);
                if (! dest_str.missing())
                    tokenize_variable_array( dest_str, result );
								
				if( !parse_index( indexes, arg, dest, result.size() ) )
				{
					builtin_print_help( parser, argv[0], stderr_buffer );
					retcode = 1;
					break;
				}
				for( j=0; j < indexes.size() ; j++ )
				{
					long idx = indexes[j];
					if( idx < 1 || (size_t)idx > result.size() )
					{
						retcode++;
					}
				}
			}
			else
			{
				if( !env_exist( arg, scope ) )
				{
					retcode++;
				}
			}
			
			free( dest );
			
		}
		return retcode;
	}
	
	if( list ) 
	{
		/* Maybe we should issue an error if there are any other arguments? */
		print_variables(0, 0, shorten_ok, scope);
		return 0;
	} 
	
	if( woptind == argc )
	{
		/*
		  Print values of variables
		*/

		if( erase ) 
		{
			append_format(stderr_buffer,
					   _(L"%ls: Erase needs a variable name\n"), 
					   argv[0] );
			
			builtin_print_help( parser, argv[0], stderr_buffer );
			retcode = 1;
		}
		else
		{
			print_variables( 1, 1, shorten_ok, scope );
		}
		
		return retcode;
	}

	if( !(dest = wcsdup(argv[woptind])))
	{
		DIE_MEM();		
	}

	if( wcschr( dest, L'[' ) )
	{
		slice = 1;
		*wcschr( dest, L'[' )=0;
	}
	
	if( !wcslen( dest ) )
	{
		free( dest );
		append_format(stderr_buffer, BUILTIN_ERR_VARNAME_ZERO, argv[0] );
		builtin_print_help( parser, argv[0], stderr_buffer );
		return 1;
	}
	
	if( (bad_char = wcsvarname( dest ) ) )
	{
		append_format(stderr_buffer, BUILTIN_ERR_VARCHAR, argv[0], *bad_char );
		builtin_print_help( parser, argv[0], stderr_buffer );
		free( dest );
		return 1;
	}
	
	if( slice && erase && (scope != ENV_USER) )
	{
		free( dest );
		append_format(stderr_buffer, _(L"%ls: Can not specify scope when erasing array slice\n"), argv[0] );
		builtin_print_help( parser, argv[0], stderr_buffer );
		return 1;
	}
	
	/*
	  set assignment can work in two modes, either using slices or
	  using the whole array. We detect which mode is used here.
	*/
	
	if( slice )
	{

		/*
		  Slice mode
		*/
		int idx_count, val_count;
		wcstring_list_t values;
		std::vector<long> indexes;
		wcstring_list_t result;
		
        const env_var_t dest_str = env_get_string(dest);
        if (! dest_str.missing())
            tokenize_variable_array( dest_str, result );
		
		for( ; woptind<argc; woptind++ )
		{			
			if( !parse_index( indexes, argv[woptind], dest, result.size() ) )
			{
				builtin_print_help( parser, argv[0], stderr_buffer );
				retcode = 1;
				break;
			}
			
			val_count = argc-woptind-1;
			idx_count = indexes.size();

			if( !erase )
			{
				if( val_count < idx_count )
				{
					append_format(stderr_buffer, _(BUILTIN_SET_ARG_COUNT), argv[0] );
					builtin_print_help( parser, argv[0], stderr_buffer );
					retcode=1;
					break;
				}
				if( val_count == idx_count )
				{
					woptind++;
					break;
				}
			}
		}		

		if( !retcode )
		{
			/*
			  Slice indexes have been calculated, do the actual work
			*/

			if( erase )
			{
				erase_values(result, indexes);
				my_env_set( dest, result, scope);
			}
			else
			{
				wcstring_list_t value;
//				al_init(&value);

				while( woptind < argc ) 
				{
					value.push_back( argv[woptind++] );
				}

				if( update_values( result, 
								   indexes,
								   value ) )
				{
					append_format(stderr_buffer, L"%ls: ", argv[0] );
					append_format(stderr_buffer, ARRAY_BOUNDS_ERR );
					stderr_buffer.push_back(L'\n');
				}
				
				my_env_set(dest, result, scope);
								
//				al_destroy( &value );
								
			}			
		}

//		al_foreach( &result, &free );
//		al_destroy( &result );

//		al_destroy(&indexes);
//		al_destroy(&values);
		
	}
	else
	{
		woptind++;
		
		/*
		  No slicing
		*/
		if( erase )
		{
			if( woptind != argc )
			{
				append_format(stderr_buffer, 
						   _(L"%ls: Values cannot be specfied with erase\n"),
						   argv[0] );
				builtin_print_help( parser, argv[0], stderr_buffer );
				retcode=1;
			}
			else
			{
				retcode = env_remove( dest, scope );
			}
		}
		else
		{
            wcstring_list_t val;
			for( i=woptind; i<argc; i++ )
                val.push_back(argv[i]);
			retcode = my_env_set( dest, val, scope );
		}		
	}
	
	free( dest );
	
	return retcode;

}
/**
   The complete builtin. Used for specifying programmable
   tab-completions. Calls the functions in complete.c for any heavy
   lifting. Defined in builtin_complete.c
*/
static int builtin_complete(parser_t &parser, wchar_t **argv)
{
    ASSERT_IS_MAIN_THREAD();
    bool res=false;
    int argc=0;
    int result_mode=SHARED;
    int remove = 0;
    int authoritative = -1;

    wcstring short_opt;
    wcstring_list_t gnu_opt, old_opt;
    const wchar_t *comp=L"", *desc=L"", *condition=L"";

    bool do_complete = false;
    wcstring do_complete_param;

    wcstring_list_t cmd;
    wcstring_list_t path;

    static int recursion_level=0;

    argc = builtin_count_args(argv);

    woptind=0;

    while (! res)
    {
        static const struct woption
                long_options[] =
        {
            {
                L"exclusive", no_argument, 0, 'x'
            }
            ,
            {
                L"no-files", no_argument, 0, 'f'
            }
            ,
            {
                L"require-parameter", no_argument, 0, 'r'
            }
            ,
            {
                L"path", required_argument, 0, 'p'
            }
            ,
            {
                L"command", required_argument, 0, 'c'
            }
            ,
            {
                L"short-option", required_argument, 0, 's'
            }
            ,
            {
                L"long-option", required_argument, 0, 'l'
            }
            ,
            {
                L"old-option", required_argument, 0, 'o'
            }
            ,
            {
                L"description", required_argument, 0, 'd'
            }
            ,
            {
                L"arguments", required_argument, 0, 'a'
            }
            ,
            {
                L"erase", no_argument, 0, 'e'
            }
            ,
            {
                L"unauthoritative", no_argument, 0, 'u'
            }
            ,
            {
                L"authoritative", no_argument, 0, 'A'
            }
            ,
            {
                L"condition", required_argument, 0, 'n'
            }
            ,
            {
                L"do-complete", optional_argument, 0, 'C'
            }
            ,
            {
                L"help", no_argument, 0, 'h'
            }
            ,
            {
                0, 0, 0, 0
            }
        }
        ;

        int opt_index = 0;

        int opt = wgetopt_long(argc,
                               argv,
                               L"a:c:p:s:l:o:d:frxeuAn:C::h",
                               long_options,
                               &opt_index);
        if (opt == -1)
            break;

        switch (opt)
        {
            case 0:
                if (long_options[opt_index].flag != 0)
                    break;
                append_format(stderr_buffer,
                              BUILTIN_ERR_UNKNOWN,
                              argv[0],
                              long_options[opt_index].name);
                builtin_print_help(parser, argv[0], stderr_buffer);


                res = true;
                break;

            case 'x':
                result_mode |= EXCLUSIVE;
                break;

            case 'f':
                result_mode |= NO_FILES;
                break;

            case 'r':
                result_mode |= NO_COMMON;
                break;

            case 'p':
            case 'c':
            {
                wcstring tmp;
                if (unescape_string(woptarg, &tmp, UNESCAPE_SPECIAL))
                {
                    if (opt=='p')
                        path.push_back(tmp);
                    else
                        cmd.push_back(tmp);
                }
                else
                {
                    append_format(stderr_buffer, L"%ls: Invalid token '%ls'\n", argv[0], woptarg);
                    res = true;
                }
                break;
            }

            case 'd':
                desc = woptarg;
                break;

            case 'u':
                authoritative=0;
                break;

            case 'A':
                authoritative=1;
                break;

            case 's':
                short_opt.append(woptarg);
                break;

            case 'l':
                gnu_opt.push_back(woptarg);
                break;

            case 'o':
                old_opt.push_back(woptarg);
                break;

            case 'a':
                comp = woptarg;
                break;

            case 'e':
                remove = 1;
                break;

            case 'n':
                condition = woptarg;
                break;

            case 'C':
                do_complete = true;
                do_complete_param = woptarg ? woptarg : reader_get_buffer();
                break;

            case 'h':
                builtin_print_help(parser, argv[0], stdout_buffer);
                return 0;

            case '?':
                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
                res = true;
                break;

        }

    }

    if (!res)
    {
        if (condition && wcslen(condition))
        {
            const wcstring condition_string = condition;
            parse_error_list_t errors;
            if (parse_util_detect_errors(condition_string, &errors))
            {
                append_format(stderr_buffer,
                              L"%ls: Condition '%ls' contained a syntax error",
                              argv[0],
                              condition);
                for (size_t i=0; i < errors.size(); i++)
                {
                    append_format(stderr_buffer, L"\n%s: ", argv[0]);
                    stderr_buffer.append(errors.at(i).describe(condition_string));
                }
                res = true;
            }
        }
    }

    if (!res)
    {
        if (comp && wcslen(comp))
        {
            if (parser.test_args(comp, 0, 0))
            {
                append_format(stderr_buffer,
                              L"%ls: Completion '%ls' contained a syntax error\n",
                              argv[0],
                              comp);

                parser.test_args(comp, &stderr_buffer, argv[0]);

                res = true;
            }
        }
    }

    if (!res)
    {
        if (do_complete)
        {
            const wchar_t *token;

            parse_util_token_extent(do_complete_param.c_str(), do_complete_param.size(), &token, 0, 0, 0);

            const wchar_t *prev_temporary_buffer = temporary_buffer;
            temporary_buffer = do_complete_param.c_str();

            if (recursion_level < 1)
            {
                recursion_level++;

                std::vector<completion_t> comp;
                complete(do_complete_param, comp, COMPLETION_REQUEST_DEFAULT);

                for (size_t i=0; i< comp.size() ; i++)
                {
                    const completion_t &next =  comp.at(i);

                    const wchar_t *prepend;

                    if (next.flags & COMPLETE_REPLACES_TOKEN)
                    {
                        prepend = L"";
                    }
                    else
                    {
                        prepend = token;
                    }


                    if (!(next.description).empty())
                    {
                        append_format(stdout_buffer, L"%ls%ls\t%ls\n", prepend, next.completion.c_str(), next.description.c_str());
                    }
                    else
                    {
                        append_format(stdout_buffer, L"%ls%ls\n", prepend, next.completion.c_str());
                    }
                }

                recursion_level--;
            }

            temporary_buffer = prev_temporary_buffer;

        }
        else if (woptind != argc)
        {
            append_format(stderr_buffer,
                          _(L"%ls: Too many arguments\n"),
                          argv[0]);
            builtin_print_help(parser, argv[0], stderr_buffer);

            res = true;
        }
        else if (cmd.empty() && path.empty())
        {
            /* No arguments specified, meaning we print the definitions of
             * all specified completions to stdout.*/
            complete_print(stdout_buffer);
        }
        else
        {
            int flags = COMPLETE_AUTO_SPACE;

            if (remove)
            {
                builtin_complete_remove(cmd,
                                        path,
                                        short_opt.c_str(),
                                        gnu_opt,
                                        old_opt);
            }
            else
            {
                builtin_complete_add(cmd,
                                     path,
                                     short_opt.c_str(),
                                     gnu_opt,
                                     old_opt,
                                     result_mode,
                                     authoritative,
                                     condition,
                                     comp,
                                     desc,
                                     flags);
            }

        }
    }

    return res ? 1 : 0;
}
Example #3
0
/**
   The complete builtin. Used for specifying programmable
   tab-completions. Calls the functions in complete.c for any heavy
   lifting. Defined in builtin_complete.c
*/
static int builtin_complete( wchar_t **argv )
{
	int res=0;
	int argc=0;
	int result_mode=SHARED;
	int remove = 0;
	int authoritative = -1;
	int flags = COMPLETE_AUTO_SPACE;
	
	string_buffer_t short_opt;
	array_list_t gnu_opt, old_opt;
	wchar_t *comp=L"", *desc=L"", *condition=L"";

	wchar_t *do_complete = 0;
	
	array_list_t cmd;
	array_list_t path;

	static int recursion_level=0;
	
	if( !is_interactive_session )
	{
		debug( 1, _(L"%ls: Command only available in interactive sessions"), argv[0] );
	}
	
	al_init( &cmd );
	al_init( &path );
	sb_init( &short_opt );
	al_init( &gnu_opt );
	al_init( &old_opt );
	
	argc = builtin_count_args( argv );	
	
	woptind=0;
	
	while( res == 0 )
	{
		const static struct woption
			long_options[] =
			{
				{
					L"exclusive", no_argument, 0, 'x' 
				}
				,
				{
					L"no-files", no_argument, 0, 'f' 
				}
				,
				{
					L"require-parameter", no_argument, 0, 'r' 
				}
				,
				{
					L"path", required_argument, 0, 'p'
				}
				,					
				{
					L"command", required_argument, 0, 'c' 
				}
				,					
				{
					L"short-option", required_argument, 0, 's' 
				}
				,
				{
					L"long-option", required_argument, 0, 'l'
				}
				,
				{
					L"old-option", required_argument, 0, 'o' 
				}
				,
				{
					L"description", required_argument, 0, 'd'
				}
				,
				{
					L"arguments", required_argument, 0, 'a'
				}
				,
				{
					L"erase", no_argument, 0, 'e'
				}
				,
				{
					L"unauthoritative", no_argument, 0, 'u'
				}
				,
				{
					L"authoritative", no_argument, 0, 'A'
				}
				,
				{
					L"condition", required_argument, 0, 'n'
				}
				,
				{
					L"do-complete", optional_argument, 0, 'C'
				}
				,
				{
					L"help", no_argument, 0, 'h'
				}
				,
				{ 
					0, 0, 0, 0 
				}
			}
		;		
		
		int opt_index = 0;
		
		int opt = wgetopt_long( argc,
								argv, 
								L"a:c:p:s:l:o:d:frxeuAn:C::h", 
								long_options, 
								&opt_index );
		if( opt == -1 )
			break;
			
		switch( opt )
		{
			case 0:
				if(long_options[opt_index].flag != 0)
					break;
                sb_printf( sb_err,
                           BUILTIN_ERR_UNKNOWN,
                           argv[0],
                           long_options[opt_index].name );
				builtin_print_help( argv[0], sb_err );

				
				res = 1;
				break;
				
			case 'x':					
				result_mode |= EXCLUSIVE;
				break;
					
			case 'f':					
				result_mode |= NO_FILES;
				break;
				
			case 'r':					
				result_mode |= NO_COMMON;
				break;
					
			case 'p':	
			case 'c':
			{
				wchar_t *a = unescape( woptarg, 1);
				if( a )
				{
					al_push( (opt=='p'?&path:&cmd), a );
				}
				else
				{
					sb_printf( sb_err, L"%ls: Invalid token '%ls'\n", argv[0], woptarg );
					res = 1;					
				}				
				break;
			}
				
			case 'd':
				desc = woptarg;
				break;
				
			case 'u':
				authoritative=0;
				break;
				
			case 'A':
				authoritative=1;
				break;
				
			case 's':
				sb_append( &short_opt, woptarg );
				break;
					
			case 'l':
				al_push( &gnu_opt, woptarg );
				break;
				
			case 'o':
				al_push( &old_opt, woptarg );
				break;

			case 'a':
				comp = woptarg;
				break;
				
			case 'e':
				remove = 1;
				break;

			case 'n':
				condition = woptarg;
				break;
				
			case 'C':
				do_complete = woptarg?woptarg:reader_get_buffer();
				break;
				
			case 'h':
				builtin_print_help( argv[0], sb_out );
				return 0;
				
			case '?':
				builtin_unknown_option( argv[0], argv[woptind-1] );
				res = 1;
				break;
				
		}
		
	}

	if( !res )
	{
		if( condition && wcslen( condition ) )
		{
			if( parser_test( condition, 0, 0, 0 ) )
			{
				sb_printf( sb_err,
						   L"%ls: Condition '%ls' contained a syntax error\n", 
						   argv[0],
						   condition );
				
				parser_test( condition, 0, sb_err, argv[0] );
				
				res = 1;
			}
		}
	}
	
	if( !res )
	{
		if( comp && wcslen( comp ) )
		{
			if( parser_test_args( comp, 0, 0 ) )
			{
				sb_printf( sb_err,
						   L"%ls: Completion '%ls' contained a syntax error\n", 
						   argv[0],
						   comp );
				
				parser_test_args( comp, sb_err, argv[0] );
				
				res = 1;
			}
		}
	}

	if( !res )
	{
		if( do_complete )
		{
			array_list_t *comp;
			int i;

			const wchar_t *prev_temporary_buffer = temporary_buffer;

			wchar_t *token;

			parse_util_token_extent( do_complete, wcslen( do_complete ), &token, 0, 0, 0 );
						
			temporary_buffer = do_complete;		

			if( recursion_level < 1 )
			{
				recursion_level++;
			
				comp = al_halloc( 0 );
			
				complete( do_complete, comp );
			
				for( i=0; i<al_get_count( comp ); i++ )
				{
					completion_t *next = (completion_t *)al_get( comp, i );
					wchar_t *prepend;
					
					if( next->flags & COMPLETE_NO_CASE )
					{
						prepend = L"";
					}
					else
					{
						prepend = token;
					}
						

					if( next->description )
					{
						sb_printf( sb_out, L"%ls%ls\t%ls\n", prepend, next->completion, next->description );
					}
					else
					{
						sb_printf( sb_out, L"%ls%ls\n", prepend, next->completion );
					}
				}
			
				halloc_free( comp );
				recursion_level--;
			}
		
			temporary_buffer = prev_temporary_buffer;		
		
		}
		else if( woptind != argc )
		{
			sb_printf( sb_err, 
					   _( L"%ls: Too many arguments\n" ),
					   argv[0] );
			builtin_print_help( argv[0], sb_err );

			res = 1;
		}
		else if( (al_get_count( &cmd) == 0 ) && (al_get_count( &path) == 0 ) )
		{
			/* No arguments specified, meaning we print the definitions of
			 * all specified completions to stdout.*/
			complete_print( sb_out );		
		}
		else
		{
			if( remove )
			{
				builtin_complete_remove( &cmd,
										 &path,
										 (wchar_t *)short_opt.buff,
										 &gnu_opt,
										 &old_opt );									 
			}
			else
			{
				builtin_complete_add( &cmd, 
									  &path,
									  (wchar_t *)short_opt.buff,
									  &gnu_opt,
									  &old_opt, 
									  result_mode, 
									  authoritative,
									  condition,
									  comp,
									  desc,
									  flags ); 
			}

		}	
	}
	
	al_foreach( &cmd, &free );
	al_foreach( &path, &free );

	al_destroy( &cmd );
	al_destroy( &path );
	sb_destroy( &short_opt );
	al_destroy( &gnu_opt );
	al_destroy( &old_opt );

	return res;
}
Example #4
0
/**
   The jobs builtin. Used fopr printing running jobs. Defined in builtin_jobs.c.
*/
static int builtin_jobs( wchar_t **argv )
{
	int argc=0;
	int found=0;
	int mode=JOBS_DEFAULT;
	int print_last = 0;
	job_t *j;

	argc = builtin_count_args( argv );
	woptind=0;

	while( 1 )
	{
		const static struct woption
			long_options[] =
			{
				{
					L"pid", no_argument, 0, 'p'
				}
				,
				{
					L"command", no_argument, 0, 'c'
				}
				,
				{
					L"group", no_argument, 0, 'g'
				}
				,
				{
					L"last", no_argument, 0, 'l'
				}
				,
				{
					L"help", no_argument, 0, 'h'
				}
				,
				{
					0, 0, 0, 0
				}
			}
		;

		int opt_index = 0;

		int opt = wgetopt_long( argc,
								argv,
								L"pclgh",
								long_options,
								&opt_index );
		if( opt == -1 )
			break;

		switch( opt )
		{
			case 0:
				if(long_options[opt_index].flag != 0)
					break;
                sb_printf( sb_err,
                           BUILTIN_ERR_UNKNOWN,
                           argv[0],
                           long_options[opt_index].name );

				builtin_print_help( argv[0], sb_err );


				return 1;


			case 'p':
				mode=JOBS_PRINT_PID;
				break;

			case 'c':
				mode=JOBS_PRINT_COMMAND;
				break;

			case 'g':
				mode=JOBS_PRINT_GROUP;
				break;

			case 'l':
			{
				print_last = 1;
				break;
			}

			case 'h':
				builtin_print_help( argv[0], sb_out );
				return 0;				

			case '?':
				builtin_unknown_option( argv[0], argv[woptind-1] );
				return 1;

		}
	}


	/*
	  Do not babble if not interactive
	*/
	if( builtin_out_redirect )
	{
		found=1;
	}

	if( print_last )
	{
		/*
		  Ignore unconstructed jobs, i.e. ourself.
		*/
		for( j=first_job; j; j=j->next )
		{
			if( (j->flags & JOB_CONSTRUCTED) && !job_is_completed(j) )
			{
				builtin_jobs_print( j, mode, !found );
				return 0;
			}
		}

	}
	else
	{
		if( woptind < argc )
		{
			int i;

			found = 1;

			for( i=woptind; i<argc; i++ )
			{
				long pid;
				wchar_t *end;
				errno=0;
				pid=wcstol( argv[i], &end, 10 );
				if( errno || *end )
				{
					sb_printf( sb_err,
							   _( L"%ls: '%ls' is not a job\n" ),
							   argv[0],
							   argv[i] );
					return 1;
				}

				j = job_get_from_pid( pid );

				if( j && !job_is_completed( j ) )
				{
					builtin_jobs_print( j, mode, !found );
				}
				else
				{
					sb_printf( sb_err,
							   _( L"%ls: No suitable job: %d\n" ),
							   argv[0],
							   pid );
					return 1;
				}
			}
		}
		else
		{
			for( j= first_job; j; j=j->next )
			{
				/*
				  Ignore unconstructed jobs, i.e. ourself.
				*/
				if( (j->flags & JOB_CONSTRUCTED) && !job_is_completed(j) )
				{
					builtin_jobs_print( j, mode, !found );
					found = 1;
				}
			}
		}
	}

	if( !found )
	{
		sb_printf( sb_out,
				   _( L"%ls: There are no jobs\n" ),
				   argv[0] );
	}

	return 0;
}
/**
   set_color builtin
*/
static int builtin_set_color(parser_t &parser, wchar_t **argv)
{
    /** Variables used for parsing the argument list */
    const struct woption long_options[] =
    {
        { L"background", required_argument, 0, 'b'},
        { L"help", no_argument, 0, 'h' },
        { L"bold", no_argument, 0, 'o' },
        { L"underline", no_argument, 0, 'u' },
        { L"version", no_argument, 0, 'v' },
        { L"print-colors", no_argument, 0, 'c' },
        { 0, 0, 0, 0 }
    };

    const wchar_t *short_options = L"b:hvocu";

    int argc = builtin_count_args(argv);

    /* Some code passes variables to set_color that don't exist, like $fish_user_whatever. As a hack, quietly return failure. */
    if (argc <= 1)
    {
        return EXIT_FAILURE;
    }

    const wchar_t *bgcolor = NULL;
    bool bold = false, underline=false;
    int errret;

    /* Parse options to obtain the requested operation and the modifiers */
    woptind = 0;
    while (1)
    {
        int c = wgetopt_long(argc, argv, short_options, long_options, 0);

        if (c == -1)
        {
            break;
        }

        switch (c)
        {
            case 0:
                break;

            case 'b':
                bgcolor = woptarg;
                break;

            case 'h':
                builtin_print_help(parser, argv[0], stdout_buffer);
                return STATUS_BUILTIN_OK;

            case 'o':
                bold = true;
                break;

            case 'u':
                underline = true;
                break;

            case 'c':
                print_colors();
                return STATUS_BUILTIN_OK;

            case '?':
                return STATUS_BUILTIN_ERROR;
        }
    }

    /* Remaining argument is foreground color */
    const wchar_t *fgcolor = NULL;
    if (woptind < argc)
    {
        if (woptind + 1 == argc)
        {
            fgcolor = argv[woptind];
        }
        else
        {
            append_format(stderr_buffer,
                          _(L"%ls: Too many arguments\n"),
                          argv[0]);
            return STATUS_BUILTIN_ERROR;
        }
    }

    if (fgcolor == NULL && bgcolor == NULL && !bold && !underline)
    {
        append_format(stderr_buffer,
                      _(L"%ls: Expected an argument\n"),
                      argv[0]);
        return STATUS_BUILTIN_ERROR;
    }

    const rgb_color_t fg = rgb_color_t(fgcolor ? fgcolor : L"");
    if (fgcolor && (fg.is_none() || fg.is_ignore()))
    {
        append_format(stderr_buffer, _(L"%ls: Unknown color '%ls'\n"), argv[0], fgcolor);
        return STATUS_BUILTIN_ERROR;
    }

    const rgb_color_t bg = rgb_color_t(bgcolor ? bgcolor : L"");
    if (bgcolor && (bg.is_none() || bg.is_ignore()))
    {
        append_format(stderr_buffer, _(L"%ls: Unknown color '%ls'\n"), argv[0], bgcolor);
        return STATUS_BUILTIN_ERROR;
    }

    /* Make sure that the term exists */
    if (cur_term == NULL && setupterm(0, STDOUT_FILENO, &errret) == ERR)
    {
        append_format(stderr_buffer, _(L"%ls: Could not set up terminal\n"), argv[0]);
        return STATUS_BUILTIN_ERROR;
    }

    /*
       Test if we have at least basic support for setting fonts, colors
       and related bits - otherwise just give up...
    */
    if (! exit_attribute_mode)
    {
        return STATUS_BUILTIN_ERROR;
    }


    /* Save old output function so we can restore it */
    int (* const saved_writer_func)(char) = output_get_writer();

    /* Set our output function, which writes to a std::string */
    builtin_set_color_output.clear();
    output_set_writer(set_color_builtin_outputter);

    if (bold)
    {
        if (enter_bold_mode)
            writembs(tparm(enter_bold_mode));
    }

    if (underline)
    {
        if (enter_underline_mode)
            writembs(enter_underline_mode);
    }

    if (bgcolor != NULL)
    {
        if (bg.is_normal())
        {
            write_color(rgb_color_t::black(), false /* not is_fg */);
            writembs(tparm(exit_attribute_mode));
        }
    }

    if (fgcolor != NULL)
    {
        if (fg.is_normal() || fg.is_reset())
        {
            write_color(rgb_color_t::black(), true /* is_fg */);
            writembs(tparm(exit_attribute_mode));
        }
        else
        {
            write_color(fg, true /* is_fg */);
        }
    }

    if (bgcolor != NULL)
    {
        if (! bg.is_normal() && ! bg.is_reset())
        {
            write_color(bg, false /* not is_fg */);
        }
    }

    /* Restore saved writer function */
    output_set_writer(saved_writer_func);

    /* Output the collected string */
    stdout_buffer.append(str2wcstring(builtin_set_color_output));
    builtin_set_color_output.clear();

    return STATUS_BUILTIN_OK;
}
Example #6
0
/**
   The complete builtin. Used for specifying programmable
   tab-completions. Calls the functions in complete.c for any heavy
   lifting. Defined in builtin_complete.c
*/
static int builtin_complete(parser_t &parser, wchar_t **argv)
{
    ASSERT_IS_MAIN_THREAD();
    bool res=false;
    int argc=0;
    int result_mode=SHARED;
    int remove = 0;
    int authoritative = -1;

    wcstring short_opt;
    wcstring_list_t gnu_opt, old_opt;
    const wchar_t *comp=L"", *desc=L"", *condition=L"";

    bool do_complete = false;
    wcstring do_complete_param;

    wcstring_list_t cmd;
    wcstring_list_t path;
    wcstring_list_t wrap_targets;

    static int recursion_level=0;

    argc = builtin_count_args(argv);

    woptind=0;

    while (! res)
    {
        static const struct woption
                long_options[] =
        {
            { L"exclusive", no_argument, 0, 'x' },
            { L"no-files", no_argument, 0, 'f' },
            { L"require-parameter", no_argument, 0, 'r' },
            { L"path", required_argument, 0, 'p' },
            { L"command", required_argument, 0, 'c' },
            { L"short-option", required_argument, 0, 's' },
            { L"long-option", required_argument, 0, 'l' },
            { L"old-option", required_argument, 0, 'o' },
            { L"description", required_argument, 0, 'd' },
            { L"arguments", required_argument, 0, 'a' },
            { L"erase", no_argument, 0, 'e' },
            { L"unauthoritative", no_argument, 0, 'u' },
            { L"authoritative", no_argument, 0, 'A' },
            { L"condition", required_argument, 0, 'n' },
            { L"wraps", required_argument, 0, 'w' },
            { L"do-complete", optional_argument, 0, 'C' },
            { L"help", no_argument, 0, 'h' },
            { 0, 0, 0, 0 }
        };

        int opt_index = 0;

        int opt = wgetopt_long(argc,
                               argv,
                               L"a:c:p:s:l:o:d:frxeuAn:C::w:h",
                               long_options,
                               &opt_index);
        if (opt == -1)
            break;

        switch (opt)
        {
            case 0:
                if (long_options[opt_index].flag != 0)
                    break;
                append_format(stderr_buffer,
                              BUILTIN_ERR_UNKNOWN,
                              argv[0],
                              long_options[opt_index].name);
                builtin_print_help(parser, argv[0], stderr_buffer);


                res = true;
                break;

            case 'x':
                result_mode |= EXCLUSIVE;
                break;

            case 'f':
                result_mode |= NO_FILES;
                break;

            case 'r':
                result_mode |= NO_COMMON;
                break;

            case 'p':
            case 'c':
            {
                wcstring tmp;
                if (unescape_string(woptarg, &tmp, UNESCAPE_SPECIAL))
                {
                    if (opt=='p')
                        path.push_back(tmp);
                    else
                        cmd.push_back(tmp);
                }
                else
                {
                    append_format(stderr_buffer, L"%ls: Invalid token '%ls'\n", argv[0], woptarg);
                    res = true;
                }
                break;
            }

            case 'd':
                desc = woptarg;
                break;

            case 'u':
                authoritative=0;
                break;

            case 'A':
                authoritative=1;
                break;

            case 's':
                short_opt.append(woptarg);
                break;

            case 'l':
                gnu_opt.push_back(woptarg);
                break;

            case 'o':
                old_opt.push_back(woptarg);
                break;

            case 'a':
                comp = woptarg;
                break;

            case 'e':
                remove = 1;
                break;

            case 'n':
                condition = woptarg;
                break;
                
            case 'w':
                wrap_targets.push_back(woptarg);
                break;

            case 'C':
                do_complete = true;
                do_complete_param = woptarg ? woptarg : reader_get_buffer();
                break;

            case 'h':
                builtin_print_help(parser, argv[0], stdout_buffer);
                return 0;

            case '?':
                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
                res = true;
                break;

        }

    }

    if (!res)
    {
        if (condition && wcslen(condition))
        {
            const wcstring condition_string = condition;
            parse_error_list_t errors;
            if (parse_util_detect_errors(condition_string, &errors, false /* do not accept incomplete */))
            {
                append_format(stderr_buffer,
                              L"%ls: Condition '%ls' contained a syntax error",
                              argv[0],
                              condition);
                for (size_t i=0; i < errors.size(); i++)
                {
                    append_format(stderr_buffer, L"\n%s: ", argv[0]);
                    stderr_buffer.append(errors.at(i).describe(condition_string));
                }
                res = true;
            }
        }
    }

    if (!res)
    {
        if (comp && wcslen(comp))
        {
            wcstring prefix;
            if (argv[0])
            {
                prefix.append(argv[0]);
                prefix.append(L": ");
            }

            wcstring err_text;
            if (parser.detect_errors_in_argument_list(comp, &err_text, prefix.c_str()))
            {
                append_format(stderr_buffer,
                              L"%ls: Completion '%ls' contained a syntax error\n",
                              argv[0],
                              comp);
                stderr_buffer.append(err_text);
                stderr_buffer.push_back(L'\n');
                res = true;
            }
        }
    }

    if (!res)
    {
        if (do_complete)
        {
            const wchar_t *token;

            parse_util_token_extent(do_complete_param.c_str(), do_complete_param.size(), &token, 0, 0, 0);
            
            /* Create a scoped transient command line, so that bulitin_commandline will see our argument, not the reader buffer */
            builtin_commandline_scoped_transient_t temp_buffer(do_complete_param);

            if (recursion_level < 1)
            {
                recursion_level++;

                std::vector<completion_t> comp;
                complete(do_complete_param, comp, COMPLETION_REQUEST_DEFAULT);

                for (size_t i=0; i< comp.size() ; i++)
                {
                    const completion_t &next =  comp.at(i);

                    /* Make a fake commandline, and then apply the completion to it.  */
                    const wcstring faux_cmdline = token;
                    size_t tmp_cursor = faux_cmdline.size();
                    wcstring faux_cmdline_with_completion = completion_apply_to_command_line(next.completion, next.flags, faux_cmdline, &tmp_cursor, false);

                    /* completion_apply_to_command_line will append a space unless COMPLETE_NO_SPACE is set. We don't want to set COMPLETE_NO_SPACE because that won't close quotes. What we want is to close the quote, but not append the space. So we just look for the space and clear it. */
                    if (!(next.flags & COMPLETE_NO_SPACE) && string_suffixes_string(L" ", faux_cmdline_with_completion))
                    {
                        faux_cmdline_with_completion.resize(faux_cmdline_with_completion.size() - 1);
                    }

                    /* The input data is meant to be something like you would have on the command line, e.g. includes backslashes. The output should be raw, i.e. unescaped. So we need to unescape the command line. See #1127 */
                    unescape_string_in_place(&faux_cmdline_with_completion, UNESCAPE_DEFAULT);
                    stdout_buffer.append(faux_cmdline_with_completion);

                    /* Append any description */
                    if (! next.description.empty())
                    {
                        stdout_buffer.push_back(L'\t');
                        stdout_buffer.append(next.description);
                    }
                    stdout_buffer.push_back(L'\n');
                }

                recursion_level--;
            }
        }
        else if (woptind != argc)
        {
            append_format(stderr_buffer,
                          _(L"%ls: Too many arguments\n"),
                          argv[0]);
            builtin_print_help(parser, argv[0], stderr_buffer);

            res = true;
        }
        else if (cmd.empty() && path.empty())
        {
            /* No arguments specified, meaning we print the definitions of
             * all specified completions to stdout.*/
            complete_print(stdout_buffer);
        }
        else
        {
            int flags = COMPLETE_AUTO_SPACE;
        
            if (remove)
            {
                builtin_complete_remove(cmd,
                                        path,
                                        short_opt.c_str(),
                                        gnu_opt,
                                        old_opt);
                
            }
            else
            {
                builtin_complete_add(cmd,
                                     path,
                                     short_opt.c_str(),
                                     gnu_opt,
                                     old_opt,
                                     result_mode,
                                     authoritative,
                                     condition,
                                     comp,
                                     desc,
                                     flags);
            }
            
            // Handle wrap targets (probably empty)
            // We only wrap commands, not paths
            for (size_t w=0; w < wrap_targets.size(); w++)
            {
                const wcstring &wrap_target = wrap_targets.at(w);
                for (size_t i=0; i < cmd.size(); i++)
                {
                    
                    (remove ? complete_remove_wrapper : complete_add_wrapper)(cmd.at(i), wrap_target);
                }
            }
        }
    }

    return res ? 1 : 0;
}
Example #7
0
/**
   The commandline builtin. It is used for specifying a new value for
   the commandline.
*/
static int builtin_commandline( wchar_t **argv )
{

	int buffer_part=0;
	int cut_at_cursor=0;

	int argc = builtin_count_args( argv );
	int append_mode=0;

	int function_mode = 0;

	int tokenize = 0;

	int cursor_mode = 0;
	int line_mode = 0;
	int search_mode = 0;
	wchar_t *begin, *end;

	current_buffer = (wchar_t *)builtin_complete_get_temporary_buffer();
	if( current_buffer )
	{
		current_cursor_pos = wcslen( current_buffer );
	}
	else
	{
		current_buffer = reader_get_buffer();
		current_cursor_pos = reader_get_cursor_pos();
	}

	if( !get_buffer() )
	{
		if (is_interactive_session)
		{
			/*
			  Prompt change requested while we don't have
			  a prompt, most probably while reading the
			  init files. Just ignore it.
			*/
			return 1;
		}

		sb_append( sb_err,
			    argv[0],
			    L": Can not set commandline in non-interactive mode\n",
			    (void *)0 );
		builtin_print_help( argv[0], sb_err );
		return 1;
	}

	woptind=0;

	while( 1 )
	{
		static const struct woption
			long_options[] =
			{
				{
					L"append", no_argument, 0, 'a'
				}
				,
				{
					L"insert", no_argument, 0, 'i'
				}
				,
				{
					L"replace", no_argument, 0, 'r'
				}
				,
				{
					L"current-job", no_argument, 0, 'j'
				}
				,
				{
					L"current-process", no_argument, 0, 'p'
				}
				,
				{
					L"current-token", no_argument, 0, 't'
				}
				,
				{
					L"current-buffer", no_argument, 0, 'b'
				}
				,
				{
					L"cut-at-cursor", no_argument, 0, 'c'
				}
				,
				{
					L"function", no_argument, 0, 'f'
				}
				,
				{
					L"tokenize", no_argument, 0, 'o'
				}
				,
				{
					L"help", no_argument, 0, 'h'
				}
				,
				{
					L"input", required_argument, 0, 'I'
				}
				,
				{
					L"cursor", no_argument, 0, 'C'
				}
				,
				{
					L"line", no_argument, 0, 'L'
				}
				,
				{
					L"search-mode", no_argument, 0, 'S'
				}
				,
				{
					0, 0, 0, 0
				}
			}
		;

		int opt_index = 0;

		int opt = wgetopt_long( argc,
								argv,
								L"abijpctwforhI:CLS",
								long_options,
								&opt_index );
		if( opt == -1 )
			break;

		switch( opt )
		{
			case 0:
				if(long_options[opt_index].flag != 0)
					break;
                sb_printf( sb_err,
                           BUILTIN_ERR_UNKNOWN,
                           argv[0],
                           long_options[opt_index].name );
				builtin_print_help( argv[0], sb_err );

				return 1;

			case L'a':
				append_mode = APPEND_MODE;
				break;

			case L'b':
				buffer_part = STRING_MODE;
				break;


			case L'i':
				append_mode = INSERT_MODE;
				break;

			case L'r':
				append_mode = REPLACE_MODE;
				break;

			case 'c':
				cut_at_cursor=1;
				break;

			case 't':
				buffer_part = TOKEN_MODE;
				break;

			case 'j':
				buffer_part = JOB_MODE;
				break;

			case 'p':
				buffer_part = PROCESS_MODE;
				break;

			case 'f':
				function_mode=1;
				break;

			case 'o':
				tokenize=1;
				break;

			case 'I':
				current_buffer = woptarg;
				current_cursor_pos = wcslen( woptarg );
				break;

			case 'C':
				cursor_mode = 1;
				break;

			case 'L':
				line_mode = 1;
				break;

			case 'S':
				search_mode = 1;
				break;

			case 'h':
				builtin_print_help( argv[0], sb_out );
				return 0;

			case L'?':
				builtin_unknown_option( argv[0], argv[woptind-1] );
				return 1;
		}
	}

	if( function_mode )
	{
		int i;

		/*
		  Check for invalid switch combinations
		*/
		if( buffer_part || cut_at_cursor || append_mode || tokenize || cursor_mode || line_mode || search_mode )
		{
			sb_printf(sb_err,
					  BUILTIN_ERR_COMBO,
					  argv[0] );

			builtin_print_help( argv[0], sb_err );
			return 1;
		}


		if( argc == woptind )
		{
			sb_printf( sb_err,
					   BUILTIN_ERR_MISSING,
					   argv[0] );

			builtin_print_help( argv[0], sb_err );
			return 1;
 		}
		for( i=woptind; i<argc; i++ )
		{
			wint_t c = input_function_get_code( argv[i] );
			if( c != -1 )
			{
				/*
				  input_unreadch inserts the specified keypress or
				  readline function at the top of the stack of unused
				  keypresses
				*/
				input_unreadch(c);
			}
			else
			{
				sb_printf( sb_err,
					   _(L"%ls: Unknown input function '%ls'\n"),
					   argv[0],
					   argv[i] );
				builtin_print_help( argv[0], sb_err );
				return 1;
			}
		}

		return 0;
	}

	/*
	  Check for invalid switch combinations
	*/
	if( (search_mode || line_mode || cursor_mode) && (argc-woptind > 1) )
	{

		sb_append( sb_err,
					argv[0],
					L": Too many arguments\n",
					(void *)0 );
		builtin_print_help( argv[0], sb_err );
		return 1;
	}

	if( (buffer_part || tokenize || cut_at_cursor) && (cursor_mode || line_mode || search_mode) )
	{
		sb_printf( sb_err,
				   BUILTIN_ERR_COMBO,
				   argv[0] );

		builtin_print_help( argv[0], sb_err );
		return 1;
	}


	if( (tokenize || cut_at_cursor) && (argc-woptind) )
	{
		sb_printf( sb_err,
				   BUILTIN_ERR_COMBO2,
				   argv[0],
				   L"--cut-at-cursor and --tokenize can not be used when setting the commandline" );


		builtin_print_help( argv[0], sb_err );
		return 1;
	}

	if( append_mode && !(argc-woptind) )
	{
		sb_printf( sb_err,
                    BUILTIN_ERR_COMBO2,
                    argv[0],
				   L"insertion mode switches can not be used when not in insertion mode" );

        builtin_print_help( argv[0], sb_err );
        return 1;
	}

	/*
	  Set default modes
	*/
	if( !append_mode )
	{
		append_mode = REPLACE_MODE;
	}

	if( !buffer_part )
	{
		buffer_part = STRING_MODE;
	}

	if( cursor_mode )
	{
		if( argc-woptind )
		{
			wchar_t *endptr;
			int new_pos;
			errno = 0;

			new_pos = wcstol( argv[woptind], &endptr, 10 );
			if( *endptr || errno )
			{
				sb_printf( sb_err,
					   BUILTIN_ERR_NOT_NUMBER,
					   argv[0],
					   argv[woptind] );
				builtin_print_help( argv[0], sb_err );
			}

			current_buffer = reader_get_buffer();
			new_pos = maxi( 0, mini( new_pos, wcslen( current_buffer ) ) );
			reader_set_buffer( current_buffer, new_pos );
			return 0;
		}
		else
		{
			sb_printf( sb_out, L"%d\n", reader_get_cursor_pos() );
			return 0;
		}

	}

	if( line_mode )
	{
		int pos = reader_get_cursor_pos();
		wchar_t *buff = reader_get_buffer();
		sb_printf( sb_out, L"%d\n", parse_util_lineno( buff, pos ) );
		return 0;

	}

	if( search_mode )
	{
		return !reader_search_mode();
	}


	switch( buffer_part )
	{
		case STRING_MODE:
		{
			begin = get_buffer();
			end = begin+wcslen(begin);
			break;
		}

		case PROCESS_MODE:
		{
			parse_util_process_extent( get_buffer(),
									   get_cursor_pos(),
									   &begin,
									   &end );
			break;
		}

		case JOB_MODE:
		{
			parse_util_job_extent( get_buffer(),
								   get_cursor_pos(),
								   &begin,
								   &end );
			break;
		}

		case TOKEN_MODE:
		{
			parse_util_token_extent( get_buffer(),
									 get_cursor_pos(),
									 &begin,
									 &end,
									 0, 0 );
			break;
		}

	}

	switch(argc-woptind)
	{
		case 0:
		{
			write_part( begin, end, cut_at_cursor, tokenize );
			break;
		}

		case 1:
		{
			replace_part( begin, end, argv[woptind], append_mode );
			break;
		}

		default:
		{
			string_buffer_t sb;
			int i;

			sb_init( &sb );

			sb_append( &sb, argv[woptind] );

			for( i=woptind+1; i<argc; i++ )
			{
				sb_append( &sb, L"\n" );
				sb_append( &sb, argv[i] );
			}

			replace_part( begin, end, (wchar_t *)sb.buff, append_mode );
			sb_destroy( &sb );

			break;
		}
	}

	return 0;
}
/**
   The commandline builtin. It is used for specifying a new value for
   the commandline.
*/
static int builtin_commandline(parser_t &parser, wchar_t **argv)
{

    int buffer_part=0;
    int cut_at_cursor=0;

    int argc = builtin_count_args(argv);
    int append_mode=0;

    int function_mode = 0;
    int selection_mode = 0;

    int tokenize = 0;

    int cursor_mode = 0;
    int line_mode = 0;
    int search_mode = 0;
    int paging_mode = 0;
    const wchar_t *begin = NULL, *end = NULL;
    
    scoped_push<const wchar_t *> saved_current_buffer(&current_buffer);
    scoped_push<size_t> saved_current_cursor_pos(&current_cursor_pos);
    
    wcstring transient_commandline;
    if (get_top_transient(&transient_commandline))
    {
        current_buffer = transient_commandline.c_str();
        current_cursor_pos = transient_commandline.size();
    }
    else
    {
        current_buffer = reader_get_buffer();
        current_cursor_pos = reader_get_cursor_pos();
    }

    if (!get_buffer())
    {
        if (is_interactive_session)
        {
            /*
              Prompt change requested while we don't have
              a prompt, most probably while reading the
              init files. Just ignore it.
            */
            return 1;
        }

        stderr_buffer.append(argv[0]);
        stderr_buffer.append(L": Can not set commandline in non-interactive mode\n");
        builtin_print_help(parser, argv[0], stderr_buffer);
        return 1;
    }

    woptind=0;

    while (1)
    {
        static const struct woption
                long_options[] =
        {
            { L"append", no_argument, 0, 'a' },
            { L"insert", no_argument, 0, 'i' },
            { L"replace", no_argument, 0, 'r' },
            { L"current-job", no_argument, 0, 'j' },
            { L"current-process", no_argument, 0, 'p' },
            { L"current-token", no_argument, 0, 't' },
            { L"current-buffer", no_argument, 0, 'b' },
            { L"cut-at-cursor", no_argument, 0, 'c' },
            { L"function", no_argument, 0, 'f' },
            { L"tokenize", no_argument, 0, 'o' },
            { L"help", no_argument, 0, 'h' },
            { L"input", required_argument, 0, 'I' },
            { L"cursor", no_argument, 0, 'C' },
            { L"line", no_argument, 0, 'L' },
            { L"search-mode", no_argument, 0, 'S' },
            { L"selection", no_argument, 0, 's' },
            { L"paging-mode", no_argument, 0, 'P' },
            { 0, 0, 0, 0 }
        };

        int opt_index = 0;

        int opt = wgetopt_long(argc,
                               argv,
                               L"abijpctwforhI:CLSsP",
                               long_options,
                               &opt_index);
        if (opt == -1)
            break;

        switch (opt)
        {
            case 0:
                if (long_options[opt_index].flag != 0)
                    break;
                append_format(stderr_buffer,
                              BUILTIN_ERR_UNKNOWN,
                              argv[0],
                              long_options[opt_index].name);
                builtin_print_help(parser, argv[0], stderr_buffer);

                return 1;

            case L'a':
                append_mode = APPEND_MODE;
                break;

            case L'b':
                buffer_part = STRING_MODE;
                break;


            case L'i':
                append_mode = INSERT_MODE;
                break;

            case L'r':
                append_mode = REPLACE_MODE;
                break;

            case 'c':
                cut_at_cursor=1;
                break;

            case 't':
                buffer_part = TOKEN_MODE;
                break;

            case 'j':
                buffer_part = JOB_MODE;
                break;

            case 'p':
                buffer_part = PROCESS_MODE;
                break;

            case 'f':
                function_mode=1;
                break;

            case 'o':
                tokenize=1;
                break;

            case 'I':
                current_buffer = woptarg;
                current_cursor_pos = wcslen(woptarg);
                break;

            case 'C':
                cursor_mode = 1;
                break;

            case 'L':
                line_mode = 1;
                break;

            case 'S':
                search_mode = 1;
                break;

            case 's':
                selection_mode = 1;
                break;

            case 'P':
                paging_mode = 1;
                break;

            case 'h':
                builtin_print_help(parser, argv[0], stdout_buffer);
                return 0;

            case L'?':
                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
                return 1;
        }
    }

    if (function_mode)
    {
        int i;

        /*
          Check for invalid switch combinations
        */
        if (buffer_part || cut_at_cursor || append_mode || tokenize || cursor_mode || line_mode || search_mode || paging_mode)
        {
            append_format(stderr_buffer,
                          BUILTIN_ERR_COMBO,
                          argv[0]);

            builtin_print_help(parser, argv[0], stderr_buffer);
            return 1;
        }


        if (argc == woptind)
        {
            append_format(stderr_buffer,
                          BUILTIN_ERR_MISSING,
                          argv[0]);

            builtin_print_help(parser, argv[0], stderr_buffer);
            return 1;
        }
        for (i=woptind; i<argc; i++)
        {
            wchar_t c = input_function_get_code(argv[i]);
            if (c != (wchar_t)(-1))
            {
                /*
                  input_unreadch inserts the specified keypress or
                  readline function at the top of the stack of unused
                  keypresses
                */
                input_unreadch(c);
            }
            else
            {
                append_format(stderr_buffer,
                              _(L"%ls: Unknown input function '%ls'\n"),
                              argv[0],
                              argv[i]);
                builtin_print_help(parser, argv[0], stderr_buffer);
                return 1;
            }
        }

        return 0;
    }

    if (selection_mode)
    {
        size_t start, len;
        const wchar_t *buffer = reader_get_buffer();
        if (reader_get_selection(&start, &len))
        {
            wchar_t *selection = new wchar_t[len + 1];
            selection[len] = L'\0';
            selection = wcsncpy(selection, buffer + start, len);

            append_format(stdout_buffer, selection);
            delete selection;
        }
        else
        {
            append_format(stdout_buffer, L"");
        }
        return 0;
    }

    /*
      Check for invalid switch combinations
    */
    if ((search_mode || line_mode || cursor_mode || paging_mode) && (argc-woptind > 1))
    {

        append_format(stderr_buffer,
                      argv[0],
                      L": Too many arguments\n",
                      NULL);
        builtin_print_help(parser, argv[0], stderr_buffer);
        return 1;
    }

    if ((buffer_part || tokenize || cut_at_cursor) && (cursor_mode || line_mode || search_mode || paging_mode))
    {
        append_format(stderr_buffer,
                      BUILTIN_ERR_COMBO,
                      argv[0]);

        builtin_print_help(parser, argv[0], stderr_buffer);
        return 1;
    }


    if ((tokenize || cut_at_cursor) && (argc-woptind))
    {
        append_format(stderr_buffer,
                      BUILTIN_ERR_COMBO2,
                      argv[0],
                      L"--cut-at-cursor and --tokenize can not be used when setting the commandline");


        builtin_print_help(parser, argv[0], stderr_buffer);
        return 1;
    }

    if (append_mode && !(argc-woptind))
    {
        append_format(stderr_buffer,
                      BUILTIN_ERR_COMBO2,
                      argv[0],
                      L"insertion mode switches can not be used when not in insertion mode");

        builtin_print_help(parser, argv[0], stderr_buffer);
        return 1;
    }

    /*
      Set default modes
    */
    if (!append_mode)
    {
        append_mode = REPLACE_MODE;
    }

    if (!buffer_part)
    {
        buffer_part = STRING_MODE;
    }

    if (cursor_mode)
    {
        if (argc-woptind)
        {
            wchar_t *endptr;
            long new_pos;
            errno = 0;

            new_pos = wcstol(argv[woptind], &endptr, 10);
            if (*endptr || errno)
            {
                append_format(stderr_buffer,
                              BUILTIN_ERR_NOT_NUMBER,
                              argv[0],
                              argv[woptind]);
                builtin_print_help(parser, argv[0], stderr_buffer);
            }

            current_buffer = reader_get_buffer();
            new_pos = maxi(0L, mini(new_pos, (long)wcslen(current_buffer)));
            reader_set_buffer(current_buffer, (size_t)new_pos);
            return 0;
        }
        else
        {
            append_format(stdout_buffer, L"%lu\n", (unsigned long)reader_get_cursor_pos());
            return 0;
        }

    }

    if (line_mode)
    {
        size_t pos = reader_get_cursor_pos();
        const wchar_t *buff = reader_get_buffer();
        append_format(stdout_buffer, L"%lu\n", (unsigned long)parse_util_lineno(buff, pos));
        return 0;

    }

    if (search_mode)
    {
        return ! reader_search_mode();
    }

    if (paging_mode)
    {
        return ! reader_has_pager_contents();
    }


    switch (buffer_part)
    {
        case STRING_MODE:
        {
            begin = get_buffer();
            end = begin+wcslen(begin);
            break;
        }

        case PROCESS_MODE:
        {
            parse_util_process_extent(get_buffer(),
                                      get_cursor_pos(),
                                      &begin,
                                      &end);
            break;
        }

        case JOB_MODE:
        {
            parse_util_job_extent(get_buffer(),
                                  get_cursor_pos(),
                                  &begin,
                                  &end);
            break;
        }

        case TOKEN_MODE:
        {
            parse_util_token_extent(get_buffer(),
                                    get_cursor_pos(),
                                    &begin,
                                    &end,
                                    0, 0);
            break;
        }

    }

    switch (argc-woptind)
    {
        case 0:
        {
            write_part(begin, end, cut_at_cursor, tokenize);
            break;
        }

        case 1:
        {
            replace_part(begin, end, argv[woptind], append_mode);
            break;
        }

        default:
        {
            wcstring sb = argv[woptind];
            int i;

            for (i=woptind+1; i<argc; i++)
            {
                sb.push_back(L'\n');
                sb.append(argv[i]);
            }

            replace_part(begin, end, sb.c_str(), append_mode);

            break;
        }
    }

    return 0;
}
Example #9
0
/**
   The ulimit builtin, used for setting resource limits. Defined in
   builtin_ulimit.c.
*/
static int builtin_ulimit(parser_t &parser, wchar_t ** argv)
{
    int hard=0;
    int soft=0;

    int what = RLIMIT_FSIZE;
    int report_all = 0;

    int argc = builtin_count_args(argv);

    woptind=0;

    while (1)
    {
        static const struct woption
                long_options[] =
        {
            {
                L"all", no_argument, 0, 'a'
            }
            ,
            {
                L"hard", no_argument, 0, 'H'
            }
            ,
            {
                L"soft", no_argument, 0, 'S'
            }
            ,
            {
                L"core-size", no_argument, 0, 'c'
            }
            ,
            {
                L"data-size", no_argument, 0, 'd'
            }
            ,
            {
                L"file-size", no_argument, 0, 'f'
            }
            ,
            {
                L"lock-size", no_argument, 0, 'l'
            }
            ,
            {
                L"resident-set-size", no_argument, 0, 'm'
            }
            ,
            {
                L"file-descriptor-count", no_argument, 0, 'n'
            }
            ,
            {
                L"stack-size", no_argument, 0, 's'
            }
            ,
            {
                L"cpu-time", no_argument, 0, 't'
            }
            ,
            {
                L"process-count", no_argument, 0, 'u'
            }
            ,
            {
                L"virtual-memory-size", no_argument, 0, 'v'
            }
            ,
            {
                L"help", no_argument, 0, 'h'
            }
            ,
            {
                0, 0, 0, 0
            }
        }
        ;


        int opt_index = 0;

        int opt = wgetopt_long(argc,
                               argv,
                               L"aHScdflmnstuvh",
                               long_options,
                               &opt_index);
        if (opt == -1)
            break;

        switch (opt)
        {
            case 0:
                if (long_options[opt_index].flag != 0)
                    break;
                append_format(stderr_buffer,
                              BUILTIN_ERR_UNKNOWN,
                              argv[0],
                              long_options[opt_index].name);
                builtin_print_help(parser, argv[0], stderr_buffer);

                return 1;

            case L'a':
                report_all=1;
                break;

            case L'H':
                hard=1;
                break;

            case L'S':
                soft=1;
                break;

            case L'c':
                what=RLIMIT_CORE;
                break;

            case L'd':
                what=RLIMIT_DATA;
                break;

            case L'f':
                what=RLIMIT_FSIZE;
                break;
#ifdef RLIMIT_MEMLOCK
            case L'l':
                what=RLIMIT_MEMLOCK;
                break;
#endif

#ifdef RLIMIT_RSS
            case L'm':
                what=RLIMIT_RSS;
                break;
#endif

            case L'n':
                what=RLIMIT_NOFILE;
                break;

            case L's':
                what=RLIMIT_STACK;
                break;

            case L't':
                what=RLIMIT_CPU;
                break;

#ifdef RLIMIT_NPROC
            case L'u':
                what=RLIMIT_NPROC;
                break;
#endif

#ifdef RLIMIT_AS
            case L'v':
                what=RLIMIT_AS;
                break;
#endif

            case L'h':
                builtin_print_help(parser, argv[0], stdout_buffer);
                return 0;

            case L'?':
                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
                return 1;
        }
    }

    if (report_all)
    {
        if (argc - woptind == 0)
        {
            print_all(hard);
        }
        else
        {
            stderr_buffer.append(argv[0]);
            stderr_buffer.append(L": Too many arguments\n");
            builtin_print_help(parser, argv[0], stderr_buffer);
            return 1;
        }

        return 0;
    }

    switch (argc - woptind)
    {
        case 0:
        {
            /*
              Show current limit value
            */
            print(what, hard);
            break;
        }

        case 1:
        {
            /*
              Change current limit value
            */
            rlim_t new_limit;
            wchar_t *end;

            /*
              Set both hard and soft limits if nothing else was specified
            */
            if (!(hard+soft))
            {
                hard=soft=1;
            }

            if (wcscasecmp(argv[woptind], L"unlimited")==0)
            {
                new_limit = RLIM_INFINITY;
            }
            else if (wcscasecmp(argv[woptind], L"hard")==0)
            {
                new_limit = get(what, 1);
            }
            else if (wcscasecmp(argv[woptind], L"soft")==0)
            {
                new_limit = get(what, soft);
            }
            else
            {
                errno=0;
                new_limit = wcstol(argv[woptind], &end, 10);
                if (errno || *end)
                {
                    append_format(stderr_buffer,
                                  L"%ls: Invalid limit '%ls'\n",
                                  argv[0],
                                  argv[woptind]);
                    builtin_print_help(parser, argv[0], stderr_buffer);
                    return 1;
                }
                new_limit *= get_multiplier(what);
            }

            return set(what, hard, soft, new_limit);
        }

        default:
        {
            stderr_buffer.append(argv[0]);
            stderr_buffer.append(L": Too many arguments\n");
            builtin_print_help(parser, argv[0], stderr_buffer);
            return 1;
        }

    }
    return 0;
}