tag

#readline

2 posts

Shell & TerminalDeep Dive October 3, 2026 7 min read

Zsh Line Editor Widgets: Keymaps, Buffer State, and Safe Redisplay

Build reliable Zsh ZLE widgets by respecting editor context, buffer and cursor state, keymap bindings, redisplay, and the limits of synchronous work.

#shell#zsh#zle

Shell & TerminalDeep Dive July 12, 2026 5 min read

Interactive Bash editing is a library-driven state machine: keymaps, completion hooks, history, and terminal escapes all meet inside GNU Readline.

#deep-dive#readline#bash