The %query-terminal-size function sent \033[18t and tried to read
the response via read-char-no-hang on fd 0, which always returns nil
in this SBCL environment. The response leaked into user input,
displaying garbled CSI sequences. Rely on ioctl only.
- Disabled \033[?u kitty keyboard protocol in modern-backend
(converts all keys to escape sequences, breaking Ctrl+letter dispatch)
- Fixed parse-csi-sequence: use multiple-value-bind instead of let*
with destructuring-bind (lost secondary return value from read-param)
- Fixed parse-csi-params format string: pass char-code of terminator
as distinct argument for ~d, keeping the character for ~C
- Added %query-terminal-size in classes.lisp: ANSI CSI 18t fallback
for terminal size detection when ioctl fails or returns zero
Application code (passepartout TUI) calls draw-text with a framebuffer
(2D array) as the first argument, but draw-text only had methods for
framebuffer-backend CLOS instances. Added a method on array that sets
cells directly on the framebuffer array, matching make-framebuffer's
return type.
with-terminal macro was only in tangled .lisp (not .org). suspend-backend
and resume-backend generics + simple-backend methods + tests were also
in hand-edited .lisp only. All three added to org/backend-protocol.org
with proper prose, following the literate programming discipline.
Also added suspend/resume assertions to simple-backend-lifecycle test suite.
Bug fixes:
- Fix OSC8 format strings (backslash escape layering) in modern-backend.org
- Test format string had single backslash instead of double, causing
unclosed CL string that cascaded through 3 subsequent test forms
- Implementation format string had leading escaped quote (not a string
opener) and triple-backslash ending (also not a string terminator)
- Fix missing closing parens in border-char-rounded and border-char-double tests
- Fix ASDF input-tests pathname (file lives in tests/, not src/components/)
New features:
- Implement suspend-backend / resume-backend protocol methods
- modern-backend: exit/enter alt screen, re-enable mouse/kitty/bracketed-paste
- simple-backend: no-ops (no terminal state to preserve)
Infrastructure:
- Update test suite to cover suspend/resume (backend + modern-backend suites)
- 454 checks, 100% pass across 14 test suites
The osc8-link implementation and its test both had doubled
backslashes (\\ -> \\) in their format strings, producing two
literal backslashes at runtime instead of the single backslash
needed for the OSC 8 string terminator (ST = ESC \).
Fix: change \\ to \\ in both the implementation and test format
strings. The tangled .lisp files now have correct escaped
backslashes (\) producing one backslash in the runtime string.
Additionally clean up a patch artifact that left a stray backslash
before the opening quote.
