Search session history

Search retained receive/transmit (RX/TX) history while UART capture continues. Open Ctrl-] f, type a query and press Enter. Enter advances through matches; q returns to live output.

Controls

Context	Key	Action
Live terminal	Ctrl-] f	Open search
Query prompt	Enter	Submit the query
Query prompt	Tab	Switch literal/regex mode, preserving the query
Query prompt	Backspace / Ctrl-U	Edit / clear the query
Results or loading	q	Return to live output
Results	Enter	Next match; wrap after the last
Results or loading	f	Fresh query in the same mode
Results or loading	r / Tab	Switch mode and reopen the current query
Prompt or results	Ctrl-] ?	Show search help; Enter or q closes it
Prompt or results	Ctrl-] b	Return to live output

Press Ctrl-] then f, type a word or phrase, and press Enter. Sericon jumps to the first occurrence in retained history and highlights it with surrounding context. Press Enter again for the next occurrence; after the last one, search wraps to the first. While viewing results, q quits search and returns to the live terminal; f opens a fresh search prompt, including more recent output. These keys also work while a submitted search is loading or when it finds no matches.

While typing a query, q and f are ordinary letters. Ctrl-] then b cancels the prompt or returns from results, and Ctrl-] then f remains an alternative way to open a new prompt. Quitting search leaves the UART session running.

Search defaults to case-sensitive literal text, including spaces, in received and transmitted data. Tab in the prompt switches between literal and regex mode while keeping your query. The mode is shown above the results. From results, r switches mode and reopens the current query for editing; press Enter to search again. A fresh query with f keeps the selected mode.

Regex examples:

Pattern	Finds
error\|warning	Either word
(?i)failed	failed regardless of case
timeout.*[0-9]+	A timeout message followed by digits
^ERROR\b	Lines starting with the word ERROR
code=\d{3}	A code with three digits

Regex matching uses the built-in Rust regex syntax, with no external command required. It searches one complete line at a time, including lines split across UART reads; patterns do not span newlines. Look-around and backreferences are unsupported. Invalid patterns leave the prompt editable with an error message. Enter advances through nonoverlapping regex matches; zero-width matches such as ^ appear as a highlighted ▏. For bounded memory use, regex search reports an error on lines over 8 MiB; literal search remains available for those streams.

Both modes ignore terminal colour/control sequences and join text split across serial reads. Backspace edits the prompt; Ctrl-U clears it. Search strings can contain up to 1,024 UTF-8 bytes. No search keystrokes are sent to the device. Stop (Ctrl-] q) and detach (Ctrl-] d) also work in search.

Each submitted search uses a snapshot of the retained history. UART capture, logging, and other clients continue while you browse; returning to live displays output received meanwhile. Searching preserves any unfinished input reservation. Logged sessions search older journal history too, using a private temporary snapshot that is removed when the search closes. With --no-log, search stays in memory and reports when earlier history is unavailable. Long searches can be cancelled immediately with q (or Ctrl-] b).