diff options
Diffstat (limited to 'todo.org')
| -rw-r--r-- | todo.org | 22 |
1 files changed, 22 insertions, 0 deletions
@@ -143,6 +143,28 @@ From the [[file:docs/design/2026-07-12-control-grammars-reference.org][taxonomy 1. *Dynamic list* — model the jukebox wallbox title-strip rack (page-flip browse, rich slotted strips, select one). Fills the most damning cell; the bt and net panels both want it. Alternative model: Rolodex card spinner, better for long sets and weaker at showing several rows at once. 2. *Alphanumeric entry* — model the *industrial ABC-order keypad*. Craig's four references (=working/retro-stereo-widgets/references/2026-07-16-abc-keypad-*.png=, =-letter-drum-bank.png=) plus a survey superseded the teletype: the references are all ABC-order, not QWERTY, on stainless or membrane, with colour-coded function keys (yellow CANCEL, red CLEAR/NO, green ENTER/YES) that land on the kit's palette without translation. A faceplate, not furniture. 3. *Index typewriter* — stylus over a printed index plate, print lever commits (Hall 1881, AEG Mignon 1924). The survey's strongest find: select and commit on two separate controls is a grammar the kit has no exemplar of, and it is small and beautiful. Second card after the keypad. + + Craig's brief (2026-07-16, after reading the AEG Mignon Model 4 reference): *reproduce the device, keep its extended character set, treat the layout as ours.* What he admires is that the plate considered high-ASCII at all — accents, section mark, fractions, the full punctuation ring — and it carries both cases with no shift key, which is how a keyless machine reaches a whole character set. What he doesn't admire is the Mignon's key order: the real plate runs =P U G Q / V I N A B / L D E T M= (a frequency layout), which you cannot read your way around. "We'll revisit the keys and the layout. The best ideas will be preserved." + + So the layout ships as *data, not drawing* — a table the builder renders — because a revisable layout that requires touching the mechanism won't get revised. First pass: alphabetical, capitals block beside lowercase block at the same column offset (find the letter, then pick the case), the Mignon's two-block structure with a legible order. Expect it to change. + + References: =working/retro-stereo-widgets/references/2026-07-16-mignon-aeg-detail.jpg= (Model 4, casing off, plate legible; CC BY-SA, Uwe Aranas, attribution required if reproduced) and =-mignon-4-index-typewriter.jpg= (museum context; public domain). Credits in =2026-07-16-mignon-CREDITS.txt=. Reference only, drawn from scratch. + +**** 2026-07-16 Thu @ 16:39:05 -0500 Built R58 index typewriter (gallery at 111) +Item 3 done. =GW.indexPlate=: click a cell to move the stylus, pull the lever to print, and only the lever prints. The first card where selecting and committing are separate acts. Keyboard follows the same rule — typing SELECTS, Enter is the lever — because a keypress that printed would make this R57 with a nicer plate. + +No case folding, unlike R57: the plate holds both cases as distinct cells, so Shift does the work a shift key would on a machine that has none. =KEYS= and =ACTIONS= are both *derived* from =LAYOUT= at load, so rewriting the table relays the plate, the keymap and the allowlist together — a binding aimed at a character the plate no longer carries isn't expressible. + +Craig's brief honoured: kept the extended set (Ä Ö Ü ä ö ü ß § ½ ¼ and the punctuation row) and the no-shift both-cases plate; dropped the Mignon's frequency order for alphabetical, capitals beside lowercase at the same column offset. + +Review (subagent) cleared the grammar — no path where selecting prints, none where the lever prints anything but the resting selection — and found five defects, all fixed: +- *Clicks bypassed press().* The contract says click and key must both route through it; R57 obeys, R58 had three direct handler bindings. No divergence yet, only because press was a pure dispatcher — add a guard to it and the mouse, the primary input on this card, would silently skip it with every probe green. Exactly the drift the rule exists to prevent, in the second card written against the rule. +- *Check 14c could not fail.* =/ss$/= on the readout also matches 'sss', so it passed even if selecting printed — blind to the one bug the card is about. Now exact, against the buffer. +- *cells{} collided on duplicate layout characters* and resolved =select('constructor')= through Object.prototype. Now =Object.create(null)=, plus a check that the table has no duplicates (14e couldn't see it: a duplicate inflates the drawn and declared counts equally). +- *Geometry broke on SHRINK.* The lever and legend anchor to the plate's top, CLR anchored to the viewBox, so a five-row table rode CLR up over the PRINT legend. Growth was always safe; shrink was the trap. VH now takes a floor, and I verified it by building the plate at 4, 5 and 9 rows rather than trusting the arithmetic: 190/192/280, no collisions. +- *No allowlist coverage on press().* R57 had it, R58 didn't. + +Known gap, Craig's to weigh when he revisits the keys: no space cell, so Space isn't in KEYS and still scrolls the page (correct per the contract). You can type Mignon-4 but not "Mignon 4". The real machine has a separate space key. 4. *Chorded keyset* — six keys, no key per letter; the chord IS the character (Microwriter 1978, Perkins Brailler 1951). The most compact honest password field. The kit names the chorded grammar already (R50 is its safety form) but holds no chorded text control. Third, if a compact field is wanted. 5. *Swatch picker* — model the signal-lamp lens turret or theatrical gel wheel; a rotary whose detents are coloured lenses. Undecided whether it earns a card or stays page furniture. 6. *Legend switch* — the lit pushbutton whose cap legend and colour ARE the state, press to step (MIL-STD-1472 catalogs it; the doc already cites the standard). The validation lamps are one. |