- When checkbox is checked, hide the bottom '#qr' rendering sample.
- When checkbox is checked, apply the font size slider value directly to the textbox.
- Re-enables the 3L version of the font in tools/build_font.py and Makefile.
- Removes /Downloads/qrfont copy targets from Makefile.
- Adds the --delete flag to the Makefile deploy target for remote cleanup.
- Adds an interactive checkbox to index.html ('Apply QR font to textbox') allowing users to type directly in the QR font and observe zero-advance cursor/shaping behavior.
- All intermediate QR glyphs (header_bits, byte_XX, count, tail,
parity, data bits, parity bits) use native 0 advance in hmtx.
- Only closing base glyphs (qr_base_NN, qr_base_p55_bit_NN) have
positive ADVANCE width.
- No GDEF table, no GPOS positioning adjustments.
- Removes LigateBreak ligature experiment (didn't prevent splitting).
- Fixes Firefox horizontal misalignment caused by subpixel snapping
of GPOS-adjusted or GDEF Mark-classified glyphs.
- Known limitation: Chrome and Firefox may split QR codes across lines
at Unicode break points (spaces, dots, slashes). CSS white-space:
nowrap on QR-containing elements is recommended.
- Temporarily disables 3L font build for faster iteration.
- Separates HTML generation into tools/build_html.py.
- Updates AGENTS.md and design.md with browser layout documentation.
* Modify SetBase_{length} to substitute header_bits (at the position of "[") with qr_base_{length} instead of substituting close_delim.
* Update CloseQR chaining rules to target header_bits at the start and replace it with SetBase_{length}, and target close_delim at the end and replace it with HideClose (empty).
* Update the matched context to correctly include len_00 (for length == 0) and @byte_00 (for length > 0) between header_bits and @s0.
* Revert UNITS_PER_EM = ADVANCE in tools/build_font.py to restore the QR code height to exactly 1.0 EM.
* Revert CSS line-height of the .qr block in tools/build_html.py back to 1.0.
* Change size-slider and size-input range limits from 10-400px to 10-300px, defaulting to 100px.
* Increase .qr line-height from 1 to 1.5 in CSS to accommodate the 1.5 EM high QR glyphs and prevent line overlaps.
* Modify configure_qr() and global initialization to define UNITS_PER_EM = round(ADVANCE / 1.5). This sets the EM coordinates scale to be smaller than the QR block height (ADVANCE), causing the QR code to render at exactly 1.5 EM high while keeping the Latin text at its standard 1.0 EM size.
* Restore the base-font EM-proportional scaling calculation (scale = (UNITS_PER_EM / unitsPerEm) * LATIN_SCALE) in tools/build_font.py to ensure the Latin text height stays perfectly consistent across all QR versions and matches Plain Sans size.
* Add HTML link rel="preload" tags to load all three fonts in parallel when index.html is loaded.
* Add font-display: block to @font-face declarations to mitigate FOUT when switching between fonts.
* Implement query parameter cache-busting hashes (?h=<sha256_hash>) for the font references generated dynamically during HTML build.
* Expand the Font Size slider minimum limit down to 10px (previously 20px).
* Replace the "Mono" option in the dropdown with "Plain Sans (no QR parsing)".
* Add .qr.mode-sans CSS styling to use Liberation Sans.
* Simplify JS size logic to keep the font size slider always enabled and active for all modes.
* Increase LATIN_SCALE to 1.00 to render Latin text at its full native baseline size.
* Change .qr CSS box-sizing to content-box and add 12px 16px padding to prevent descender vertical clipping.
* Change default demo text from "Download this font:" to "This page:".
* Set scale = LATIN_SCALE directly to ensure Latin characters keep the exact same visual size across 1-L, 2-L, and 3-L fonts.
* Set LATIN_SCALE to 0.70.
* Remove the snap-to-grid advance width constraint so that Latin characters spacing is natural.
* Add qr.jim.sh URL to the font copyright, designerURL, and vendorURL metadata.
* Increase LATIN_SCALE from 0.20 to 0.50 so surrounding Latin text is larger and more readable.
* Add a styled Font Size range slider and number input box to the web page control panel to support dynamic visual sizing (20px to 400px, centering at 200px).
* Rename demo.html to index.html in the build and Makefile output.
* Separate HTML page generation into tools/build_html.py, removing the HTML template and write_demo logic from tools/build_font.py.
* Define correct dependency targets in the Makefile so that changes to tools/build_html.py only regenerate index.html and do not trigger a slow font build.
* Add a `make deploy` target that runs `rsync -avz dist/ psy:/www/qr/`.
* Add Version 3-L configurations and update documentation (AGENTS.md, README.md).
* Solve OpenType GSUB offset overflows and compiler bottlenecks:
- Combine SetByte lookups per character instead of position/character, reducing the total lookup count from 5,300 to 510.
- Implement useExtension on helper and scan lookups to bypass the 16-bit offset constraints.
- Use class-to-class substitutions for XOR and NoOp lookups.
* Split CloseQR into CloseQR and CloseQR_CountTail to prevent shaper offset mismatches from Multiple Substitutions.
* Remove legacy reference.html output from the build and Makefile packaging.
* Update demo.html style and font selectors to support loading and displaying the 3L font with character limit labeling.
* Keep glyph names in setupPost() to ensure shape_debug.py outputs readable glyph names.
