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Our minishell with Hanju-kun UwU

PLAN

1. Read from the command line:

   • Read the input from the command line.
   • The input will be a string of words separated by spaces.
   • The program will read the input and store it in a variable.
   • Handle the signals Ctrl+C and Ctrl+Detc. getcmd() returns string

2. Syntax check:

   • Check if the input is a valid format.
   • If the input is not a valid format, print an error message and exit the program.

   syntaxcheck() returns boolean

3. Lexical analysis:

   • Split the input into typeless tokens.
   • Associate the tokens with their respective types.
   • Expand the variables if needed.
   • Store the tokens in a list with their respective types. lex() returns list of tokens

4. Parsing:

5. Execution:

   • Execute the command.
   • If the command is a builtin command, execute the builtin command.
   • If the command is not a builtin command, execute the external command. execute() returns None

//WORST CASE //minishell> < infile1 << "lim" > outfile1 echo hello world > outfile2 < infile2 | < infile3 "ca""t" > outfile3 *** BONUS PART*** && echo hello world // ";" not implemented //< infile > outfile NOT NEEDED !!!!!!!!!! //< infile cat > outfile should work //< infile cat | > outfile should NOT WORK //

test="first" another="anything here"

open double quote -> expand variable -> split by space expand variable -> split by space open single quote -> split by space