Module shell 

Chevron shell - Minimal interactive kernel shell

Provides a simple interactive command-line interface for kernel management. Prompt: >>>

Modules

commands

Shell command registry and entry points

mouse 🔒

Mouse input and rendering are independent of shell command execution. Dequeue only after acquiring the writer, so contention never loses an update.

output

Shell output formatting and capture.

parser

Shell command parser with pipeline and redirection support.

scripting

Minimal shell scripting: variable expansion, if, for, while.

Enums

ShellError

Shell error types

Constants

SHELL_HISTORY_CAPACITY 🔒

Statics

SHELL_INTERRUPTED

Global flag set by Ctrl+C. Long-running commands should poll this via is_interrupted and abort early when it returns true.

Functions

apply_redirect 🔒

Write captured output to a file (truncate or append).

char_count 🔒

Performs the char count operation.

clear_visible_line 🔒

Performs the clear visible line operation.

complete_replace_word 🔒

Replace the word starting at word_start (byte offset) with replacement.

delete_next_char_at_cursor 🔒

Performs the delete next char at cursor operation.

delete_prev_char_at_cursor 🔒

Performs the delete prev char at cursor operation.

execute_line 🔒

Execute a command line, handling scripting, pipes and redirections.

execute_pipeline 🔒

Execute a single pipeline (no scripting).

insert_bytes_at_cursor 🔒

Performs the insert bytes at cursor operation.

is_continuation_byte 🔒

Returns whether continuation byte.

is_interrupted

Returns true if Ctrl+C was pressed, and clears the flag.

longest_common_prefix 🔒

Find the longest common prefix of a set of strings.

mouse_task_main

move_cursor_left_chars 🔒

Performs the move cursor left chars operation.

next_char_boundary 🔒

Performs the next char boundary operation.

prev_char_boundary 🔒

Performs the prev char boundary operation.

print_bytes 🔒

Performs the print bytes operation.

redraw_full_line 🔒

Performs the redraw full line operation.

redraw_line 🔒

Redraw the current shell input line after the prompt

run_line

Execute one shell line without prompt/history handling.

shell_main

Main shell loop

tab_complete 🔒

Tab completion for command names and VFS paths.