C-shell/header.h at master · Chirag-newdev/C-shell · GitHub

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#include <stdio.h>
#include <stdlib.h>
#include <termios.h>
#include <string.h>
#include <dirent.h>
#include <unistd.h>
#include <time.h>
#include <stdbool.h>
#include <ctype.h>

//colors
#define BLU "\x1b[38;2;122;162;247m"
#define GREN "\x1b[38;2;158;206;106m"
#define RD "\x1b[38;2;247;118;142m"
#define YLOW "\x1b[38;2;224;175;104m"
#define CYN "\x1b[38;2;125;207;255m"
#define RST "\x1b[0m"
#define GRY "\x1b[38;2;65;72;104m"
#define ORNGE "\x1b[38;2;255;158;100m"
#define WHT "\x1b[38;2;192;202;245m"


#define __INIT_STRING ""
#define sprtr " "
#define capcity 1024 //no of lines stored at a time
int size_BUFER=0;
char** Terminal_Buffer=NULL;

//relative path of directory wrt the starting location
char* RELP_DIR=NULL;

//OLD DIR
char* OLD_DIR=NULL;

char* STARTING_DIR =NULL;

//logo
char LINUX[] =
"      " GRY "#####"  RST "\n"
"     " GRY "#######"  RST "\n"
"     " GRY "##" WHT "O" GRY "#" WHT "O" GRY "##"  RST "\n"
"     " GRY "#" ORNGE "#####" GRY "#"  RST "\n"
"   " GRY "###########"  RST "\n"
"  " GRY "#############"  RST "\n"
" " GRY "###############"  RST "\n"
" " GRY "################"  RST "\n"
" " ORNGE "##" GRY "############" ORNGE "#"  RST "\n"
ORNGE "######" GRY "########" ORNGE "######"  RST "\n"
ORNGE "#######" GRY "######" ORNGE "#######"  RST "\n"
"  " ORNGE "#####" GRY "######" ORNGE "#####"  RST "\n";

//contents of help function
char docstrin[]=
    "--------------------------------------------------------------\n"
    " COMMAND        DESCRIPTION\n"
    "--------------------------------------------------------------\n"
    " help           Displays this manual.\n"
    " cd [dir]       Change directory (~: home, -: back, /: absolute).\n"
    " ls [dir]       List files in the current or specified directory.\n"
    " pwd            Print the current working directory.\n"
    " echo [str]     Print a string to the standard output.\n"
    " cat [file]     Concatenate and print file content (text only).\n"
    " touch [file]   Create a new empty file or update timestamps.\n"
    " clear          Clear the terminal screen.\n"
    " exit [code]    Exit the shell with an optional status code.\n"
    "--------------------------------------------------------------\n"
    "Tip: The prompt turns RED if the last command failed.\n\n";

void init_buffer();

//helper function to parse command into arguments
char** split(char* line);

//helper function to store command into a screen buffer
bool parse(void);

//helper function to take input of dynamic size and stop at \n or ctrl-D
bool input(void);

//main command execution
bool run(char** args);

//CD implementation handling cd -, cd ~, cd relpath and cd abspath by using string manipulation
bool cd(char* args);

//defining exit behaviour
void term(void);