ethercalc/Changes.txt

Multi-User Spreadsheet Server — TypeScript rewrite (Cloudflare fullstack)

Changes
=======

This file is organised in reverse-chronological order: newest releases first,
with the original SocialCalc daily development log (2007–2010) preserved
verbatim at the bottom.

EtherCalc bundles SocialCalc from the audreyt/socialcalc fork; see
../socialcalc/Changes.txt for SocialCalc library release notes (v3.0.x–3.1.x).


==============================================================================
0.20260717.0 — 2026-07-17
==============================================================================

Quality
- worker: restored the Stryker mutation-testing floor (break 90) with three
  boundary-pinning tests — CSV formula neutralisation's numeric regex
  (multi-digit integer/decimal/exponent branches, trigger-led non-numeric
  values), rate-limit config parsing (`rps <= 0` boundary via a numerically-
  zero-but-non-canonical `"0.0"` input), and RoomDO seed migration's batched
  log/audit/chat key loop bounds (off-by-one). No source or config changes.
- SocialCalc 3.1.0 compatibility (client security model migration, dropped
  regex-injected `sanitizeHTML` patch) shipped in 0.20260716.0 below; no
  further SocialCalc changes in this release.

==============================================================================
0.20260716.0 — 2026-07-16
==============================================================================

Dependencies
- SocialCalc ^3.0.8 → ^3.1.0. SocialCalc 3.1.0 ships its own opt-in
  rendering security model (`SocialCalc.Callbacks.untrustedContent`,
  `securityPolicy.sanitizeHtml`, `EscapeUntrustedHtml`, `SafeUrlForRender`),
  superseding EtherCalc's regex-injected `SocialCalc.sanitizeHTML` hook.
  The client now enables `untrustedContent` at boot and wires DOMPurify
  via `securityPolicy.sanitizeHtml`; the served `static/socialcalc.js` is
  no longer regex-patched. `SocialCalc.sanitizeHTML` is still installed
  for backward compatibility with cached pre-3.1.0 assets.

Packaging
- Root `test` script now uses `bun run --filter '*' --if-present test`
  instead of `npm run --workspaces --if-present test` (Bun-native pattern).
- `package.json` `files[]` exclusions hardened: `!packages/e2e/` and
  `!packages/oracle-harness/` directory-level excludes replace file-level
  patterns that did not prevent leaks; `!**/stryker-setup-*.js` added for
  Stryker temp files that leaked into published 0.20260710.1.
- Behavioral pack-manifest test (`scripts/build-assets.test.ts`) now
  packs from the actual repo tree and asserts no e2e/oracle/stryker/test
  artifacts leak into the published tarball.
- `scripts/install-runtime-deps.js` now hard-fails (exit 1) when Bun is
  absent instead of silently succeeding with a warning.

Bug fixes
- XLSX imports now reject cells/merges beyond SocialCalc column `ZZ` with
  explicit `400`/`ImportColumnOutOfRangeError`, instead of silently dropping
  AAA+ payload during replay. Malformed merge end columns (`Infinity`,
  negative, non-integer) fail closed without calling `encodeColumn`.

Verification
- Promoted the Leanstral/LemmaScript pump into root `lemma/` (maintained
  surface; spike kept as immutable Attempt 2 provenance):
  - `lemmascript@0.5.13` root devDependency; `LemmaScript-files.txt` batch list
  - scripts: `verify:dafny`, `verify:lean`, `verify:both`, `verify:context`,
    `verify:request` (Bun-first; Dafny 16 VCs / 0 errors on `lemma/xlsx-a1.ts`)
  - CI: `.github/workflows/lemmascript.yml` (Dafny check + Lean gen smoke;
    no full `lake build`)
  - Promoted clipboard-boundary Bun tests lock the SocialCalc 1-based
    `lastcol` adapter challenged by Leanstral Attempt 2
  - Historical Attempt 2 request/raw:
    `spikes/leanstral-xlsx-coords/attempt-2-request.md`,
    `spikes/leanstral-xlsx-coords/leanstral-raw.md`

Cleanup
- Removed obsolete pre-rewrite deployment artifacts: `.dotcloud/`, `.openshift/`,
  `apache/`, root `nginx/` (legacy config dir — the active self-host proxy
  recipe lives in `deploy/nginx/`), `misc/`, `dotcloud.js`, `dotcloud.yml`, and
  `requirements.txt`.
- Removed dangling legacy Express/CoffeeScript entrypoints: `server.js`
  (broken symlink), `main.js`, `sc.js`, `exports.js`, root `player.js`,
  `player-broadcast.js`, and the empty root `_start` stub (unrelated to the
  active `/_start` route, which the Worker still serves via `start.html`).
  None were referenced by the current TypeScript/Cloudflare Worker build,
  self-host image, docs, or tests.


==============================================================================
0.20260710.1 — 2026-07-10
==============================================================================

Bug-fix release.

- Fixed multi-sheet TOC persistence: `POST /_/:room` with `text/csv` was
  executed as a raw command batch (a silent no-op), so the worker-served
  multi-sheet UI (`/=:room`) never persisted its table of contents — sheets
  vanished from the tab bar on reload. CSV bodies now convert through the
  shared SheetJS import path into a `loadclipboard` command and reuse the
  legacy paste enrichment: `paste A2 all` on an empty room, appending after
  the last row otherwise, with `?row=N` still inserting a row first. The
  202 response echoes the enriched command array so multi-sheet clients
  (and HackFoldr) recover the persisted row number. Oversized CSV imports
  return 413; a cell-less CSV is a 202 no-op. XLSX/ODS POST behavior is
  unchanged. Covered by unit, Durable Object round-trip, pinned legacy
  oracle, and Playwright lifecycle tests.

Test tooling
- Added a root `vite.config.ts` `test.projects` allowlist so `vp test`
  (Vite+'s Vitest wrapper) aggregates each package's existing
  `vitest.config.ts` / `vitest.node.config.ts` with its own environment,
  pool, and coverage settings intact, instead of falling back to Vitest's
  default whole-repo discovery (which mis-ran jsdom/workers-pool suites
  under a bare `node` environment and tripped over the Playwright and
  `bun:test` files that live outside Vitest). `bun test` / per-package
  `bun run test` are unaffected.


==============================================================================
0.20260710.0 — 2026-07-10
==============================================================================

First public EtherCalc release since 0.20260612.4; folds in the previously
unpublished 0.20260612.5 and 0.20260619.0 candidates.

SocialCalc 3.0.8
- Bumped the browser and headless engine from socialcalc ^3.0.4 to ^3.0.8.
- Formula-reference rewrites now preserve quoted, absolute, sheet-qualified,
  and named references across copy/fill/insert/delete/replace operations;
  overflow beyond column ZZ becomes #REF!, and N:T-style range endpoints parse
  correctly.
- Filldown/fillright preserve rectangular numeric series and interactive or
  replayed ranges; structural-edit undo restores affected formulas and names.
- Formula evaluation now preserves error types through arithmetic, concat, IF,
  and lookup operations; fixes comparison precedence, multi-character criteria,
  NPV/IRR period handling, currency defaults, and merged-cell format copying.
- Upstream core sources moved to typechecked TypeScript while the distributed
  runtime remains plain UMD JavaScript. EtherCalc's text-html sanitizer patch
  now tolerates the 3.0.8 render-sink shape.

Workbook import
- Implemented single-sheet workbook import on PUT /_/:room and POST /_.
- Implemented multi-sheet workbook import on PUT /=:room.xlsx and
  PUT /_/=:room/xlsx, fanned out to sub-rooms.
- Added multi-import integration tests, pure transform unit tests, and oracle
  scenarios.

Client and build tooling
- Replaced the shell asset copier with a tested TypeScript builder while
  preserving the curated assets/ contract and SocialCalc patches.
- Upgraded the client stack to Vite 8 and React 19, docs to Astro 7, and the
  Worker stack to Wrangler 4.107 / Hono 4.12.
- Standardised Vitest/coverage on 4.1.9, upgraded Playwright to 1.61, moved the
  repository to TypeScript 7.0.2, and added Biome as the PR lint gate.

Oracle replay / CI
- Relaxed XLSX/ODS ZIP comparison for equivalent SheetJS-vs-legacy layouts,
  optional metadata entries, shared versus inline strings, and worksheet
  metadata drift.
- Fixed ignored HTTP bodies, command-echo WebSocket matching, and room-index
  replay configuration; retained 100% unit coverage on gated oracle sources.
- Ratcheted the oracle-harness mutation break threshold from 83 to 80 after
  recomputing the survivor profile.

Packaging
- Made package.json's files allowlist authoritative for exclusions: npm packs
  no longer include package tests, oracle/e2e suites, local .wrangler state,
  mutation/coverage reports, caches, or generated dist source maps.
- Published packages rebuild the curated client assets before packing, ship
  those assets plus the Bun lockfile, and install production workspace
  dependencies for the packaged CLI without retaining dev/test trees.

Release verification
- `bun run lint` completed with only the known broken server.js symlink
  warning; `bun run typecheck` and the full `bun run test` suite passed,
  including 14 Playwright end-to-end scenarios.
- An isolated Cloudflare staging deployment used its own D1 database; 19 safe
  HTTP routes matched production in status and content type, with only the
  expected SocialCalc runtime body changing. A browser edit persisted through
  the Worker and rehydrated after reload.
- Worker deploy dry-runs and a fresh npm pack/install smoke completed; the
  installed CLI served the landing page and static assets with all required
  Worker/SocialCalc workspace dependencies present and forbidden local/test
  paths absent.



==============================================================================
0.20260612.4 — 2026-06-12
==============================================================================

Self-host hardening (SH-2/SH-3 completion)
- ETHERCALC_RATELIMIT optional per-IP HTTP token bucket (default off).
- ETHERCALC_ROOM_CREATE_LIMIT caps room minting per source (proxy compose
  defaults on: 6/min).
- docker-compose.proxy.yml defaults ETHERCALC_EXPIRE=2592000 (30-day TTL).

Sandstorm (SH-6/SH-7)
- ETHERCALC_SANDSTORM=1 honours viewer vs editor via X-Sandstorm-Permissions.
- run_grain.sh disarms ETHERCALC_MIGRATE_TOKEN after first-load migration.
- sandstorm-pkgdef appVersion 202606124.

Helm
- config.rateLimit and config.roomCreateLimit env wiring.


==============================================================================
0.20260612.3 — 2026-06-12
==============================================================================

Security
- astro 6.4.6 + @astrojs/starlight 0.40.0 (docs): closes GHSA-j687-52p2-xcff,
  GHSA-xr5h-phrj-8vxv.
- hono 4.12.25 (worker): multiple advisory fixes in the 4.12.x line.

Maintenance
- Oracle rooms-index fixtures corrected; docs canonical URL docs.ethercalc.net.
- GitHub Actions Cloudflare deploy auth (OAuth refresh + account id).


==============================================================================
0.20260612.2 — 2026-06-12
==============================================================================

Dependencies
- socialcalc 3.0.3 on npm, then ^3.0.4 (quote-escaping, https text-links,
  page-up/down visible-row span). Closes #88, #358, #493, #501, #512.

Features
- Oracle harness: 27 scenarios (WS connect/ask-log/execute; XLSX/ODS exports).
- Starlight docs site; production deploy workflow (manual dispatch).
- client-multi: useTocPoll live TOC sync.

Fixes
- import: decode ArrayBuffer before CSV drag-drop detection (#435).
- client-multi: keep same-origin basePath in production builds; only redirect
  localhost:8080 → :8000 in Vite dev. Fixes Sandstorm export/API #292.
- client: viewer export treats empty __MULTI__.rows as single-sheet mode.
  Fixes #232.

Docs and tooling
- Migrate GitHub wiki to Starlight user guide (syntax, forms, tips, FAQ).
- Restore Sandstorm packaging on main (SANDSTORM.md, run_grain.sh, capnp).
- CONTRIBUTING.md triage runbook; docs build in CI; deploy-docs workflow.
- Triage scripts expanded; closed #25, #59, #262, #288, #335, #494, #789,
  #800 with FAQ answers.


==============================================================================
0.20260612.1 — 2026-06-12
==============================================================================

Dependencies
- socialcalc 3.0.2 → 3.0.3: CSV formula import (#304), formatted export
  (#355, #638), currency division (#577), filldown without editor.range2
  (#314, #564, #769, #785).

Features
- POST /_do/clone + GET /:template/form 302 for form templates.
- Oracle harness: 22 scenarios (room CRUD, csv/html export, form redirect);
  structural HTML matcher; nightly oracle-replay + staging dry-run.
- client-multi: stable tab keys (#635), rowsRev iframe sync (#698), Foldr
  link dedupe (#727).
- E2E: fill-down persistence, multi rename, form clone specs.

Infrastructure
- Legacy LS/webpack tree removed from main; oracle docker pins pre-rewrite SHA.
- Triage batch-close of 29 verified-fixed issues.


==============================================================================
0.20260611.1 — 2026-06-11
==============================================================================

Self-host hardening
- ETHERCALC_DISABLE_ROOM_INDEX gates room discovery (default ON in Docker,
  Helm, workerd); legacy ETHERCALC_CORS honoured as fallback.
- nginx proxy recipe (docker-compose.proxy.yml); keyless non-loopback warnings.
- Helm chart 0.3.1: restricted securityContext (non-root, RO rootfs).
- workerd null-binding fixes (unset env → null, not '').

Fixes
- Docker entrypoint chown keyed on /data/do — fixes anonymous-volume crash in
  0.20260611.0. **Do not use the 0.20260611.0 image tag.**


==============================================================================
0.20260424.0 — 2026-04-24
==============================================================================

Migration
- bin/migrate-legacy.sh: turnkey Redis dump.rdb → workerd self-host in three
  commands; migrate profile in docker-compose.yml; backup tarball + manifest.


==============================================================================
0.20260423.0 — 2026-04-23
==============================================================================

Export / import
- xlsx/ods/fods export walks sheet.cells — formulas, formats, merges,
  comments preserved (#55, #234, #289, #305, #573, #717, #762, #783, #795).
- Multi-sheet export routes (GET /_/=:room/xlsx etc.) implemented.
- xlsx/ods import emits SocialCalc formula commands.
- Cross-sheet formulas via findCrossSheetRefs + /_do/snapshot sibling fetch.


==============================================================================
0.20260422.3 — 2026-04-22
==============================================================================

Self-host
- Docker image runs workerd serve directly (no wrangler metadata fetch hang).
- client export via fetch → blob download (popup-blocker + Sandstorm safe).
- CLI spawns bunx wrangler (no node/npm in container).

Quality
- Mutation ratchets across gated packages; README.mkdn → README.md for npm.


==============================================================================
0.20260422.0 — 2026-04-22
==============================================================================

Major release — TypeScript rewrite on npm
- Full Cloudflare stack (Hono + Durable Objects + D1 + KV + R2); Miniflare
  locally; standalone workerd Docker self-host.
- Native WebSocket protocol + socket.io shim; React 18 client-multi.
- Redis → DO/D1 migration tool; oracle equivalence harness; 100% coverage CI.
- Republishes npm line after 0.20201228.1 (last LiveScript release).


==============================================================================
Legacy EtherCalc (Node + Redis + LiveScript, pre-rewrite)
==============================================================================

Last npm/Docker release before the TypeScript rewrite: 0.20201228.1.
Pin this tag (or docker-compose.legacy.yml) to stay on Redis-backed EtherCalc.

  20191008.0 — Sandstorm version bump.
  20190418.0 — livescript 1.6.0; multi-sheet tab-loss fix (#635, #640).
  20160501.1 — Graph tab charting; F2 input toggle; Russian translation.
  20160122.5 — Excel multi-spreadsheet export; row/column select-all.
  20150822.1 — Initial Sandstorm App Market release.

Earlier npm tags (0.20120522.x through 0.20170704.x) tracked the Node/
Express + socket.io 0.9 era. See git tags for the full list.


==============================================================================
Sweet SocialCalc 0.x (2008)
==============================================================================

These release markers appear inline in the historical development log below.

  0.1   — 2008-01-26
  0.6   — 2008-02-07
  0.6.1 — 2008-02-08
  0.6.3 — 2008-02-15


==============================================================================
Historical Development Log (2007-12-27 through 2010-07-05)
==============================================================================

The following is the original SocialCalc daily development log, preserved
verbatim for historical reference.


2007-12-27:
Fixed missing 'nl' entry in typelookup plus entry. (=false+1 was failing)
Renamed scjstest to socialcalc-1.js.
Added load and save of sheetobj.names.
Added names to data sent by simpleedit to server.

2008-01-02:
Added ExecuteSheetCommand with "set sheet" commands.
Added GetStyleNum.
Added Parse class.
Added UndoStack class.

2008-01-03:
Added Undo/Redo and implemented it for set sheet commands.

2008-01-04:
Started set cell commands.

2008-01-07:
Split undo into PushChange, AddDo, and AddUndo.
Added CellFromStringParts and CellToString and "set coord all".
Added more set cell commands.
Added EditorApplySetCommandsToRange.

2008-01-08:
Fixed bug with clicking on cell below stuff not rendered yet.

2008-01-11:
Added more set commands

2008-01-14:
Moved to SocialCalcJSv2 hierarchy for revision control
Changed programs to use new hierarchy, e.g., image/ and data/

2008-01-15,16,17,18:
Created formula1.js to parse and execute formulas.
Added start of RecalcSheet to socialcalc-2.js.

2008-01-21:
Implemented function scaffolding.
Added range support to formulas.
Implemented series functions, including SUM, etc.
Fixed OLPC Fn key bug.

2008-01-23:
SocialCalc2Demo command/slist control.
Better keyboard focus handling when document window loses focus (passThru).
Added Home key to MoveECellWithKey.
Added multi-line to ExecuteSheetCommand, Parse class.

2008-01-24:
Built SocialCalc2Demo tabs: Plain, Source, Help, About

2008-01-26:
Added IF(condition,true-value,false-value) function.
Added erase All/Contents/Formats command.
Added filldown and fillright commands and SocialCalc.OffsetFormulaCoords.
Released Sweet SocialCalc 0.1.

2008-01-28:
Changed order of display on Show Source/doNewSheet for iPhone bug.
Added Math1 functions: ABS, ACOS, ASIN, ATAN, COS, DEGREES, EVEN, EXP, FACT, INT, 
 LN, LOG10, ODD, RADIANS, SIN, TAN
Added ZeroArgFunctions: FALSE(), NA(), NOW(), PI(), TODAY(), TRUE()
Added Math2Functions: ATAN2, MOD, POWER, TRUNC

2008-01-30:
Removed uses of "for (i in arrayobj)" for Prototype, etc., compatibility

2008-01-31:
Added clipboard to sheet, as well as to save/load sheet
Bumped save version to 1.4
Added copy, cut, paste, loadclipboard, clearclipboard commands
Added clipboard to Sweet SocialCalc source tab, with undo

2008-02-02:
Made clipboard global to SocialCalc object.
Updated simpleedit8.pl to have command list of socialcalc2demo1

2008-02-05:
Added merge and unmerge commands.
Added insertcol/row commands.

2008-02-06:
Added deletecol/row commands.
Added special values to formula parsing, like #REF!.

2008-02-07:
Added licensing information, breaking out socialcalctableeditor.js.
Released as version 0.6.

2008-02-08:
Changed URLs to be specific for About details and Attribution.
Bumped to 0.6.1

2008-02-09:
Removed substr(-numbers), which are not handled correctly by IE, in formula1.js, formatnumber2.js.
Fixed a bug with "+coord" - changed "sheetdata" to "sheet".

2008-02-10:
Made UI Sugar-like with more tabs, grayscale scrollbars.

2008-02-11:
Added ConvertSaveToOtherFormat and ConvertOtherFormatToSave to give multiple clipboard views

2008-02-13:
Added sort command.

2008-02-14:
Add primitive graph command.

2008-02-15:
Released 0.6.3.

2008-02-18:
Fixed sort "constant" bug which left a numeric constant (vtc) treated as text, not a number
Added SocialCalc.TestCriteria.

2008-02-19:
Added DAVERAGE, DCOUNT, DCOUNTA, DGET, DMAX, DMIN, DPRODUCT, DSTDEV, DSTDEVP, DSUM, DVAR, and DVARP.
Added HLOOKUP, VLOOKUP, MATCH, INDEX, COUNTIF, and SUMIF.

2008-02-21:
Added the rest of the wikiCalc/SocialCalc 1.1 normal functions.

2008-03-10:
Replaced cursor use of editor.ReplaceCell with editor.UpdateCellCSS for speedup.

2008-03-12:
Made 702 maximum number of columns (ZZ) for number to characters.

2008-03-14:
First implementation of socialcalcspeadsheetcontrol.js.

2008-03-20:
Fixed up name support in formulas, including getting names defined by formulas working.

2008-03-24:
Added SocialCalc.Formula.loadsheet for inter-sheet references.

2008-03-25:
Added comment value to cells.
Finished other places that were waiting for names or sheet references.

2008-03-27:
Added SaveEditorSettings and LoadEditorSettings.

2008-04-01:
Added tabs and views lists to SpreadsheetControl.
Tried rudimentary "audit" tab.

2008-04-03:
Finished audit tab and comment tab.

2008-04-04:
Changed formula parsing to allow "." inside alpha and made "_" alpha.
Added name commands to socialcalc-3.js.
Started and Names tab.

2008-04-05:
Finished Names tab.

2008-04-07:
Added SpreadsheetControlCreateSpreadsheetSave and DecodeSpreadsheetSave,
along with multipart-mime save format.
Fixed SocialCalc.SizeSSDiv: this.requestedHeight/Width => spreadsheet.requested...

2008-04-09:
Moved the Audit, Comment, and Names tab definition code into socialcalcspreadsheetcontrol.js.
Added linkstyle to RenderSheet, carried through RenderCell, passed to expand_markup.
Added text formats to list (plain, HTML, wiki, hidden), fixed bug with default text format.
Parameterized toolbarbackground and tabbackground.

2008-04-10:
Fixed bug introduced with linkstyle in rendering with linkstyle!=null.
Changed names of determine_value_type and format_value_for_display to camel case:
 DetermineValueType and FormatValueForDisplay.
Added Clipboard tab and view to facilitate interim moving of data from Excel and web.

2008-04-13:
Fixed requestedHeight/Width not working in SpreadsheetControl.

2008-04-14:
Changed rowneedsrefresh in scroll up/down one row to be object instead of array for Prototype compatibility.
Added SocialCalc.SpreadsheetControlCreateCellHTML and SocialCalc.SpreadsheetControlCreateCellHTMLSave.

2008-04-16:
Fixed SocialCalc.Formula.OperandAsSheetName not handling coords and names to get sheet name.

2008-04-17:
Keyboard handing: Fixed initial "[" being ignored, backspace passing through to browser at top level (now treated as delete).
Fixed sheetname!range_name not working and numerous other sheetname! bugs.
Fixed handling of space after coord in formula.
If SocialCalc.Formula.SheetCache.loadsheet returns null, an error is displayed in addition to #REF!.

2008-04-18:
Added dorecalc argument to SocialCalc.ConvertSaveToOtherFormat.

2008-04-21:
Added editor.SettingsCallbacks.
Added named ranges to Sort.

2008-04-23:
Added SocialCalc.defaultvalues.minimumcolwidth.
Added column drag resizing.
Fixed bug with dragging cursor out of grid losing capture on Firefox and Safari.

2008-04-24:
Made drag resize display work in Opera.
Removed dependency on body setting for font-size:small.
Added more button bar buttons: Reverse, Wiki Text, Align, etc.
Added spreadsheet control ExportCallback.

2008-04-25:
Fixed thumbstatus font size.
More drag resize for Opera and Firefox 3.

2008-04-26:
Fixed merge button bug.
Added check to guard against drag resizing non-visible columns.

2008-04-30:
Created SocialCalc.Constants.
Fixed bug where circularreferencecell wasn't reset on new recalc.

2008-05-01:
Fixed bug where merged cells' grid hid borders to right and below.
Fixed horizontal control position off when not Verdana bug.

2008-05-02:
Added more SocialCalc.Constants.
Added optional IDs on table control elements.
Fixed double-click outside grid bug.

2008-05-04:
Added optional styles for table control elements.
Moved table control repeat settings to constants.
Made thumbstatus settings skinnable with constants.

2008-05-05:
More constants: The rest of socialcalctableeditor.js, formatnumber2.js, and some of formula1.js.

2008-05-06:
More constants: The rest of formula1.js and HighlightTypes for cursor and range.
Fixed recent bug with unable to click inside of input box.
Fixed -1 1/2 => -0.5 bug.

2008-05-09:
Mostly finished InputBox/InputEcho stuff.
Fixed SocialCalc.intFunc bug which led to 2/3/08 (all Feb) being wrong.

2008-05-11:
Fixes some "event" references that should have been "e" in socialcalctableeditor.js.
Made InputEcho draggable.
Added SocialCalc.ResizeTableEditor.

2008-05-12:
Finish up InputBox stuff, handling no change, clicking during partialexpr, etc.
Added editor.DisplayCellContents() to be used to keep formula bar up to date
Fixed some bugs with reporting errors in formulas detected during parsing

2008-05-13:
Fixed a focus outside the table editor bug with the input box.
Added ID to inputEcho.

2008-05-20:
Continued work on SettingsControls objects, including adding the ColorDropdown and CustomDropdown.
Fixed some bugs with sizing of the non-main views.

2008-05-21,22:
Completed Settings view display of existing settings.
Started GetValues and DecodeSheetSettings

2008-05-26:
Implemented BorderSides settings control
Connected DecodeCellSettings, etc., so Settings view works
Layouts now handle * in any value position (PrecomputeSheetFonts renamed to PrecomputeSheetFontsAndLayouts)

2008-05-28:
Added SocialCalc.EditorMouseInfo.ignore to turn off mousedown and dblclick detection temporarily.
Added defaultCommentClass, defaultCommentStyle, defaultCommentNoGridClass, and defaultCommentNoGridStyle
 to Constants for SocialCalc.RenderCell and context.commentClassName,
 context.commentClassCSS, etc., to RenderContext.
Created SocialCalc.ConstantsDefaultClasses and socialcalc.css.

2008-06-02:
Added buttons to socialcalcspreadsheetcontrol.js.
Reworked the default toolbars to use buttons with icon images added to images file.
Made Clipboard tab have multiple formats again.
Updated the Help tab text.

2008-06-04:
Fixed problem with * in font in EncodeCellAttributes

2008-06-07:
Made InputBox Firefox up/down arrow handling work in more cases, adding inputBox.skipOne
Fixed H/VLOOKUP functions ignoring the rangelookup value

2008-07-07:
Fixed blowup bug with "1 1/3" in SocialCalc.DetermineValueType

2008-07-08:
EditorRenderSheet now adds "fullgrid" as an element id. It's the element that gets sheet mouse clicks.

2008-07-09:
Fixed missing "1,234.5" format.

2008-07-17:
Added statusline callbacks.
Added more comments about SocialCalc.Cell.
Changed SocialCalc.CellFromStringParts to convert strings to numbers in vt, vtf, and vtc.
Fixed bug where vertical-align wasn't being enforced in SocialCalc.SetECellHeaders.
Redid keyboard handlers to follow http://unixpapa.com/js/key.html more,
 fixing bugs with Safari 3.1 and Opera 9.5.
Changed SocialCalc.InputBoxOnClick to SocialCalc.InputBoxOnMouseDown (bug 796).

2008-07-18:
SocialCalc.DetermineValue now handles multiple commas (had missing "g" attribute) (bug 805).

2008-07-29:
SocialCalc.Formula.SheetCache upgraded to handle loading, status values, and recalc flags.
New recalc code:
 Fixed: Remember to have UI check for circ references and display status
 Fixed: =Self should be circ
 Fixed: if calced value/type is the same, don't delete display value

2008-09-09:
Fixed formatnumber2.js ampmstr using non-existant constants

2008-09-10:
Moved CalculateColWidthData call into RenderSheet
Fixed bug with last two rows in pane not getting height calculations updated correctly in
 CalculateEditorPositions
Removed SheetRenders before recalc

2008-09-11:
Fixed bug with pane slider into scrolled row/col too far: now it unscrolls second pane
 (but must wait for position recalc, unfortunately)

2008-09-12:
Fixed bug that kept pan slider tracking lines from showing

2008-09-18:
EditorSaveEdit now does encodeForSave of text.
Added sheet.renderneeded and sheet.celldisplayneeded
Added SocialCalc.ScheduleSheetCommands and started using it instead of ExecuteCommands directly

2008-09-19:
ScheduleSheetCommands now starts a time-sliced loop to execute commands

2008-09-20:
2008-09-21:
2008-09-22:
2008-09-23:
Made commands, recalc, and display all be timer driven
Added deferred command execution
Added edit.busy
Made most of UI observe the busy flag, including Button and Drag additions

2008-11-06:
Added calcorder as a timesliced part of recalc.

2008-11-07:
Added recalc to coded and decoded sheet attributes.
Sheet recalc attribute is now followed, as well as new sheet.recalconce.

2008-11-10:
SpreadsheetControl now has a default status line.
Added recalc button to toolbar.

2008-11-11:
Recalc is now followed in mult-sheet recalc.

2008-11-14:
Tab switching is ignored away from sheet when editor.busy.
Initial spreadsheet.currentTab is now 0 after initialization.
Recalc button in toolbar is only displayed if recalc needed

2008-11-15:
Made spreadsheet.DoOnResize.
Fixed bug with ResizeTableEditor changing griddiv but not toplevel.

2008-11-16:
Made SocialCalc.ResetSheet only reset data stuff so Reload works in new event-driven world.

2008-11-19:
Sort range is now saved and loaded.

2008-11-24:
Added sheet.changedrendervalues to fix bugs with changed fonts, etc.
Added color chooser to settings tab
Made scroll wheel follow editor.busy

2008-11-26:
Updated simpleedit14.pl
Fixed some IE bugs with SocialCalc.SpreadsheetControlDecodeSpreadsheetSave with ^$

2008-11-29:
Fixed row hide setting load bug (typo).

2008-12-01:
Made simpleedit14.pl do server-side wikitext expansion differently than client-side.
Fixed bug with formula bar not being updated after commands (and at load).
Fixed bug with commands being executed during cell edit.

2008-12-04:
Made General format round to a maximum precision to lessen floating point artifacts.

2008-12-09:
Added editor.ctrlkeyFunction, including Ctrl-V handling.
Added embedded newline support to csv and tab format conversion.

2008-12-10:
Fixed bugs in simpleedit14.pl with loading unavailable sheets

2008-12-11:
Added undo maximum of 100.

2008-12-26:
Fixed SocialCalc.setStyles to allow colons in style values. (kratib reported)
Finally fixed FF 2 Mac losing Ctrl-V.
Changed grid line and pane divider color to something darker to better work on some laptops.
Fixed some bugs with sort settings not being preserved when updating column chooser info or loading

2008-12-28:
Fixed some bugs with displaying zero values related to infinity and NaN.

2009-01-14:
Fixed bug with reloading sheet with font settings.

2009-01-15:
First implementation of movepaste/moveinsert done.
Added swapcolors button to socialcalcspreadsheetcontrol.js.

2009-02-02:
Changed to SocialCalc.Callbacks.expand_wiki which takes subtypes.
Implemented demo samples of text-wiki-pagelink.

2009-02-05:
Added SocialCalc.Formula.RemoteFunctionInfo.waitingForServer to help handling RPC.
Fixed recalc off not recalculating positions in case cell got different size.

2009-02-20:
Created socialcalcpopup.js and changed socialcalcspreadsheetcontrol.js to use it.

2009-02-24:
Continued fixing bugs in socialcalcpopup.js and adding features.

2009-02-25:
Moved spreadsheetcontrol button and tab styles to SocialCalc.Constants to make skinning easier.

2009-03-10:
Made socialcalc2demo10.
Made socialcalcserver.pl use all filenames and have settings file.

2009-03-19:
Added function arg_def, func_def, and func_class to formula1.js and socialcalcconstants.js.
Added definitions to all functions.
Added function information routines FillFunctionInfo and FunctionArgString.
Added prompt to InputEcho to show function argument prompts.
Added function list dialog to ssctrltest1.html.
Added SocialCalc.EditorAddToInput for pasting function starts, etc.

2009-03-23:
Added formula bar buttons to socialcalcspreadsheetcontrol.js.
Moved function list as a formula bar button in socialcalcspreadsheetcontrol.js.
Added Multi-line input box dialog and support.

2009-03-24:
Tuned multi-line input to handle disabling inputbox when editing and when multi-line cell content.
Added SocialCalc.Formula.FreshnessInfo to help determine if calculations are out of date.

2009-04-01:
Fixed bug with maxUndo that messed up audit. Now have maxRedo, too.

2009-04-15:
Added value type "tl" -- text link
Upgraded text-link format handing, and added SocialCalc.ParseCellLinkText and .expand_text_link.
Made better handling of linktype (socialcalcspreadsheetcontrol.js) and $options (SocialCalcServersideUtilities.pm)

2009-04-16:
More work on text-link and added to SocialCalcServersideUtilities.pm.

2009-04-29:
Made linkstyle an object, added context.defaultlinkstyle and context.defaultHTMLlinkstyle.
HTML rendering stuff like SpreadsheetControlCreateCellHTML take optional linkstyle or use defaultHTMLlinkstyle.
Linking now has [pagename] and {worksheet [pagename]}/
Added SocialCalc.Callback.MakePageLink.

2009-04-30:
Added Link dialog.

2009-05-01:
Added set format and popup options to Link dialog.
Upgraded SocialCalcServersideUtilities.pm to handle pagenames and workspaces.

2009-05-07:
Added SocialCalc.GetElementPositionWithScroll to socialcalc-3.js to fix Popup bug when settings pane scrolled.
Added sheet.recalcchangedavalue so you can tell if a recalc changed anything.

2009-05-11:
Changed tableeditor, socialcalc-3.js, and spreadsheetcontrol to use SocialCalc.Constants.defaultImagePrefix for images. It should have the "sc-" in it.
SocialCalc.Popup.imagePrefix needs its own version of the same thing.

2009-05-15:
Split SocialCalcServersideUtilities.pm into 2 parts, adding SocialCalcServersideNumberFormatting.pm.
Upgraded socialcalcserver.pl to handle new image prefixes.
Added /* */ to SocialCalc js files so the minimizer won't strip out the licensing notices.

2009-05-16:
Added ctrl-c handling, and got ctrl-c/ctrl-v working on FF 2/3/mac, Safari/Chrome, IE 6/7, Opera.
Added ctrl-z to do undo.
Fixed maxUndo/maxRedo to have maxRedo be the max size of stack and maxUndo is max undoable, and various undo bugs.
Fixed bugs with queuing up commands.
Set default maxUndo to 50.
Fixed bug that made some typeahead be lost.
Changed statusline total to use formatNumberWithFormat with [,]General format to clean up rounding, and add commas.

2009-05-17:
Changed Ctrl-V to do just a Paste Formulas, not Paste All.

2009-05-18:
Added Ctrl-X to be like Ctrl-C with Cut formulas instead of copy, made Ctrl-C use EditorScheduleSheetCommands.

2009-05-19:
Hide ssctrl1.html extra buttons, added sample minimal Sum and Sum2 Button code.
Updated EditorAddToInput to erase any pointing partial expressions.

2009-05-21:
Changed ctrl-v to paste in upper left if has range.

2009-05-22:
Changed dragging vertical thumb to display part of each proposed new top row. New constants, etc.

2009-05-28:
Wrote CreateCSV routine in Perl in socialcalcserverX.pl.

2009-05-31:
Moved sum button into socialcalcspreadsheetcontrol.js as additional formula bar button.

2009-06-01:
Made OLPC version's graphing more modular, and save.
Fixed bug in sort settings save.
Added SocialCalc.Callbacks.NormalizeSheetName to socialcalc-3.js and formula1.js.
Moved CreateCSV into SocialCalcServersideUtilities.pm.

2009-06-09:
Fixed Safari bug with detecting partial formulas for prompt.
Fixed bugs with conditionals in formats. Issues converting from Perl...
Merged SocialCalcServersideFormatting.pm back into ServersideUtilities.pm.
Fixed bug in js and Perl with missing "=" comparison in conditional custom formats.
Added temporary Ctrl-S for setting custom numeric formats.

2009-06-11:
Added "cmd:" prefix option to Ctrl-S for manually issuing commands.
Fixed bug in VLOOKUP argument prompt.

2009-06-14:
Fixed bug with SocialCalc.Formula.OperandAsSheetName not working with absolute references.
Fixed bug with Popup custom not escaping current value.

2009-06-16:
Fixed bug in SocialCalc.RecalcCheckCell where sheetref wasn't reset if range item ended in sheetref.

2009-06-21:
Fixed: Audit tab doesn't escape <>, etc.

2009-06-28:
Fixed bug with text-custom not working (conversion from Perl...)

2009-07-15:
Fixed INDEX function not handling references on another sheet.

2009-07-21:
Fixed redo of name delete setting value to description.

2009-08-17:
Moved "moveecell" status call up above editor.EnsureECellVisible to not overwrite "Displaying..." message on Home, etc.
Fixed bug with Link dialog pasting page references adding extra "]".
Added SocialCalc.Popup.LocalizeString that needs to be overridden in socialcalcpopup.

2009-08-19:
Fixed bug with socialcalcpopup.js Color Chooser when you clicked on last pixels of grid.
Added SocialCalc.LocalizeString and SocialCalc.LocalizeSubstrings to socialcalcspreadsheetcontrol.js.
Made use of LocalizeString and LocalizeSubstrings in socialcalcspreadsheetcontrol.js, ssctrltest1.html, OLPC code, etc.
This should finish the main localization enablement of SocialCalc in JavaScript.

2009-08-27:
Removed extra " in SocialCalcServersideUtilities.pm that was messing up spans, etc.

2009-09-03:
Put in SocialCalc.CanonicalizeSheet to do a pass before save to minimize sheet extents, remove unused items from
saved lists and alphabetize them. The saved data is upwards and downwards compatible.
Added SocialCalc.Constants.doCanonicalizeSheet to turn this off.

2009-09-09:
Added sampleWidth, sampleHeight, backgroundImage, backgroundImageDefault, and backgroundImageDisabled to color chooser attribs.

2009-09-23:
Added ensureWithin to socialcalcpopup.js.
Changed cursor position detection a bit in color chooser.
Made border color chooser moveable.
Fixed "-", ".", "e1" and other things being considered a number on input.

2009-10-21:
Added text subtype "tr" (text rich) to formula1.js TypeLookupTable and to socialcalc3.js format_text_for_display

2009-11-02:
Minor change to SocialCalc.special_chars to clean up regex. Not a bug, but a minor performance thing.

2009-11-03:
Added text format Wikitext to SCFormatTextFormats in socialcalcconstants.js

2009-12-02:
Added missing // to socialcalcspreadsheetcontrol.js setting of tabBackground.
Set minOK to 0 just in case in formatnumber2.js.

2010-01-14:
Changed socialcalctableeditor.js to do auto-repeat in drag select.
Made formula editing reset position of InputEcho after pointing in case cell position has changed.
Added beginning of SocialCalc.CellHandles to socialcalctableeditor.js. Had test code, but now just returns.

2010-02-09:
Fixed bug where undo stack didn't always set changedrendervalues so moves/pastes/etc of merged cells messed up display

2010-03-23:
Finished changes to add editor.noEdit to socialcalctableeditor.js, including
fixing thumb dragging to better handle mouse out of window, handling no socialcalcspreadsheetcontrol.js, 
etc.

2010-03-25:
Added socialcalcviewer.js.
Fixed bug in SocialCalc.InitializeSpreadsheetControl that didn't take padding into account when sizing status line.

2010-04-13:
Added CmdExtensions to socialcalc-3.js, and the startcmdextension command.

2010-05-07:
Implemented drag handles for fill/move using a single image with a round, segmented palette. Added sc-drag-handles.png.

2010-05-12:
Added SocialCalc.CtrlSEditor to socialcalctableeditor.js and socialcalcspreadsheetcontrol.js.
Use "edit:partname" command to edit, "edit:" to list all parts and contents. No text deletes part.
Added SocialCalc.OtherSaveParts to socialcalcspreadsheetcontrol.js.
This all gives us a way to set startup macros, etc.

2010-05-13:
Fixed IE6 and IE7+ compatibility issues with drag palette. Uses .gif for IE6, .png otherwise.

2010-07-05:
Upgraded to Tracy's drag palette images, including making radii setable constants.
Made click without drag on drag palette not do any commands.
Put in a fix for Safari 5 problem with copy/paste (involving onbeforepaste default behavior).


==============================================================================
Historical TO DO (circa 2010)
==============================================================================

Preserved from the original Changes.txt for historical reference. Many items
are obsolete (Perl-side modules no longer in this repo), done (undo limit),
or subsumed by the TypeScript rewrite and socialcalc 3.x modernisation.

Check out <= and >= Test Criteria!

Make defaultCommentStyle work with defaultImagePrefix.

Handle bad settings
Make sure insert/delete row/col and move handle name coord changing undo, especially wrt #REF!.
Need some way to abort recalc -- like pressing Esc?


Limit undo size?
1 row scroll of high cells doesn't update row height values or something -
 scroll in Merges and Scrolling when 2 panes -- may be dragging when scrolled
 doesn't know trying to set too far: check test
Bug in SocialCalc.pm: adjust_formula_coords refs to deleted cells -- doesn't handle multiple
Bug in Sheet.pm: test_criteria tests "value" instead of "type" for left error
Check SheetFunctions.pm: Dseries with criteria of "0" -- checks for blank as !criteria, not length
 Also, see double testcol setting.
INDEX function (and range return from evaluate polish) does not handle other sheets.
 Make DecodeRangeParts get that stuff to make it easy?
Bug in SheetFunctions.pm: StringFunctions error doesn't return right away
 RIGHT has -1 args?
 InterestFunctions: should be -3 args?
 IRR check for values?
Bug in Sheet.pm: evaluate_parsed_formula return of range doesn't swap sheetname!coord
Sheet.ResetSheet doesn't seem to work well -- it does not recalc or redisplay well afterward