114 lines
2.3 KiB
C
114 lines
2.3 KiB
C
#include <stdbool.h>
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#include "keyboard.h"
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#include "shell.h"
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#include "tty.h"
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#include "string.h"
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void shell_init(void)
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{
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char input_buffer[SHELL_BUFFER_SIZE + 1];
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size_t i;
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char c;
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while (true)
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{
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terminal_printc("\n");
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terminal_printc("&7dead@&croot&7: /> ");
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i = 0;
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c = 0;
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while (i < SHELL_BUFFER_SIZE)
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{
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c = keyboard_getchar();
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if (c == '\b')
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{
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if (i > 0)
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{
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terminal_printc("\b \b");
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--i;
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}
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}
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else
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{
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terminal_putchar(c);
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input_buffer[i] = c;
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++i;
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if (c == '\n')
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break;
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}
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}
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input_buffer[i] = '\0';
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keyboard_clear_buffer();
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shell_parse_input(input_buffer);
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}
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}
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void shell_help_command(void)
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{
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terminal_printc("List of commands:\n");
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terminal_printc("help - Print out the list of commands.\n");
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terminal_printc("exit - Exit the shell.\n");
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terminal_printc("echo - Print out the message. &eWITH colors!&7\n");
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terminal_printc("clear - Clear the terminal.\n");
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}
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void shell_exit_command(void)
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{
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terminal_printc("Exiting shell...\n");
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terminal_printc("Goodbye!\n");
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while (1)
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;
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}
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void shell_echo_command(char *input)
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{
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char *message = input;
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while (*message == ' ')
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{
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message++;
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}
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terminal_printc(message);
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terminal_printc("\n");
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}
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void shell_parse_input(char *input)
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{
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char *command = strtok(input, " \n");
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char *args = input + strlen(command) + 1;
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if (command == NULL || *command == '\0')
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{
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return;
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}
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if (strcmp(command, "help") == 0)
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{
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shell_help_command();
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}
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else if (strcmp(command, "echo") == 0)
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{
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shell_echo_command(args);
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}
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else if (strcmp(command, "exit") == 0)
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{
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shell_exit_command();
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}
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else if (strcmp(command, "clear") == 0)
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{
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terminal_clear();
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}
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else
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{
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terminal_printc("Unknown command: '");
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terminal_writestring(command);
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terminal_printc("'\n");
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terminal_printc("Type 'help' to print out the list of commands.\n");
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}
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}
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