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TASKS.md

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Tasks

TODO

  • Implement command history: F3 copies previous command. Support unix style history with arrow keys up and down to scroll through previous
    • Implement previous history browsing by writing the beginning of the line and then selecting with arrows history-lines, which matches the beginning of the line that user
  • Implement command line argument support (%1, %2, %3, etc.)
  • Implement SETLOCAL and ENDLOCAL commands for local variable scoping
  • Implement IF/ELSE statement support
  • Implement nested IF statements
  • Implement comparison operators (EQU, NEQ, LSS, LEQ, GTR, GEQ)
  • Implement logical operators (AND, OR, NOT)
  • Implement arithmetic operators (+, -, *, /, %) with SET /A
  • Implement assignment operators (+=, -=, *=, /=, %=)
  • Implement bitwise operators (&, |, ^)
  • Implement REM/:: comment functionality
  • Implement GOTO and label functionality for functions
  • Implement CALL command to call functions
  • Implement EXIT /B for function returns
  • Implement FOR loop functionality
  • Implement redirection operators (>, >>, <, 2>, 2>&1)
  • Implement pipe operator (|)
  • Implement more file commands: COPY, DEL, MD, RD, REN, MOVE, TYPE, DIR
  • Implement date/time commands: DATE, TIME
  • Implement MORE, SORT, FIND commands
  • Implement CHOICE command for user input options
  • Implement START, TITLE commands
  • Implement ATTRIB, VOL, LABEL commands
  • Implement system information commands: SYSTEMINFO, VER
  • Implement network commands: PING, IPCONFIG, NET
  • Implement process commands: TASKLIST, TASKKILL
  • Implement SUBST command for drive substitution
  • Implement tree and other directory commands: TREE, XCOPY
  • Implement PATH command
  • Implement PROMPT command
  • Implement file comparison: FC, COMP
  • Implement disk commands: CHKDSK, FORMAT, DISKPART
  • Implement error handling and exit codes
  • Implement additional input/output features
  • Add support for numeric variables with SET /A
  • Implement SHIFT operator for command line arguments beyond %9
  • Implement string manipulation functions
  • Implement file I/O operations (reading, writing, appending files)
  • Implement conditional file operations
  • Add comprehensive error checking and reporting

DONE

  • created initial README.md
  • write to shell md files
    • shell will default to "\" directory separator, but supports "/"
    • linux root directory "/" binds to "C:\"
    • other directories can be mount with internal MOUNT command (like in DOS?)
    • "%OS%" environment value is real like uname in linux, but it can be overriden with program params and internal commands to e.g. "Windows_NT"
  • create a small web scraper, which downloads tutorial web pages from "https://www.tutorialspoint.com/batch_script/index.htm" and all pages starting with "https://www.tutorialspoint.com/batch_script/" to "shell/docs/www"
    • basically you find the next button at '
      ' and follow that link until there's no next button
    • download all images to "shell/docs/www" too
    • convert those web pages to markdown in "shell/docs" and move used images to "shell/docs/imgs". Only convert the main text information.
  • Implemented basic shell with echo, set, cd, pwd, cls, pause commands
  • Implemented batch file execution support
  • Implemented @echo off functionality
  • Implemented environment variable expansion (%VAR%)
  • Implemented path conversion between Windows and Linux formats
  • Implemented directory mounting capabilities
  • change #define "v1.0" to be latest
  • CLI should feel like Windows Command Prompt or cmd in Wine. Default prompt in directory "C:\Users\sblo" is: "C:\Users\sblo>"
  • add "-h" and "--help" support for main program
  • add "help" command upport in the CLI command loop
  • use md files in docs directory to create implementation stub of the shell program in C (COMPLETED)