typedef.h

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#ifndef TYPEDEF_H
#define TYPEDEF_H
 
#include <stddef.h>
#include <sys/types.h>
#include "constants.h"
 
typedef enum
{
    AND,                       // &&
    OR,                        // ||
    REDIRECTION_APPEND_OUTPUT, // >>
    REDIRECTION_APPEND_INPUT,  // <<
    SEMICOLON,                 // ;
    PIPE,                      // |
    BACKGROUND,                // &
    REDIRECTION_OUTPUT,        // >
    REDIRECTION_INPUT,         // <
    UNKNOWN,                   // Unknown operator
} OperatorType;
 
typedef struct
{
    pid_t pid;
    int job_number;
    char *command;
} BackgroundProcess;
 
typedef struct
{
    char *input_file;
    char *output_file;
    int append_input;
    int append_output;
} Redirection;
 
typedef struct
{
    char *command;
    char **arguments;
    char **complete_command;
    char *input_string;
    int num_arguments;
    Redirection redirection;
} Command;
 
typedef struct
{
    Command *commands;   // Array of commands
    char **operators;    // Array of operators
    size_t num_commands; // Number of commands
    size_t num_operators; // Number of operators
} CommandSequence;
 
typedef struct
{
    char history[MAX_HISTORY_SIZE][MAX_INPUT_LENGTH];
    int history_count;
    int current_index;
} CommandHistory;
 
typedef struct
{
    char *alias;
    char *command;
} Alias;
 
#endif // TYPEDEF_H