if you downloaded that font from https://fonts.google.com/specimen/Aref+Ruqaa+Ink then it's a font bug, or rather the font has been incorrectly subsetted (the rest of the font lost a couple unreferenced glyphs but SVG table stayed the same because hb-subset can't subset it; it should have been subsetted -- if at all -- using the --retain-gids flag). See https://github.com/google/fonts/issues/6295
The original font file at https://github.com/google/fonts/tree/main/ofl/arefruqaaink has the correct glyph order and SVG table. On Wed, May 24, 2023 at 1:39 PM Hin-Tak Leung <ht...@users.sourceforge.net> wrote: > On Wednesday, 24 May 2023, 05:49:00 BST, Werner LEMBERG <w...@gnu.org> > wrote: > > > > I finished adding the color toggle to ftgrid (trivial, just cut and > > > paste a few lines from ftview) > > > Please submit a Merge Request! > > That's okay when I finish the current investigation. I think I did have a > gitlab account, then somehow it got suspended about half year ago from lack > of use. I tried re-activating without success... btw, the mailing list also > seems to change a few months ago - I used to get digests, now it comes as > individual posts. > > I think I found an anomaly with ftgrid/ftview with > ArefRuqaaInk-Regular.ttf - using hb-shape/hp-view, I get at gid 468/469 > which are a pair of blue and red braces ; hb-view can draw them as colours, > so it is getting svg at 468/469. But on ftview/ftgrid, the blue and red > braces are glyph 475 and 476 (below verbatim from FT2_DEBUG), and you get > the black/white braces in my hacked ftgrid at 468/469: > > ======== > <svg xmlns="http://www.w3.org/2000/svg"; xmlns:xlink=" > http://www.w3.org/1999/xlink"; version="1.1"><defs><radialGradient id="g1" > cx="277" cy="-196" r="475" gradientUnits="userSpaceOnUse"><stop offset="0" > stop-color="#D22E1F" stop-opacity="0.252"/><stop offset="1" > stop-color="#D22E1F"/></radialGradient><radialGradient id="g2" cx="255" > cy="-195" r="260" gradientUnits="userSpaceOnUse"><stop offset="0" > stop-color="#0074B6"/><stop offset="1" stop-color="#0074B6" > stop-opacity="0.252"/></radialGradient><path d="M256,-199 Q284,-207 > 298,-222.5 Q312,-238 317,-255 Q322,-272 322,-284 Q322,-318 300,-338.5 > Q278,-359 244,-359 Q221,-359 198,-345 Q175,-331 167,-331 Q154,-331 149,-336 > L154,-344 Q156,-343 160,-343 Q174,-343 182,-357.5 Q190,-372 197,-380 > Q224,-418 254,-418 Q288,-418 302,-383 L304,-385 Q294,-406 294,-431 > Q294,-470 345,-521 Q350,-526 357.5,-533 Q365,-540 374,-548 L401,-574 > Q419,-590 425,-603 Q407,-608 407,-622 Q407,-640 427,-640 Q446,-640 446,-621 > Q446,-609 429,-583 Q416,-566 407.5,-552 Q399,-538 394,-528 Q348,-442 > 348,-327 Q348,-211 277,-196 Q348,-180 348,-65 Q348,50 394,136 Q399,146 > 407.5,160 Q416,174 429,191 Q446,217 446,229 Q446,248 427,248 Q407,248 > 407,230 Q407,215 425,211 Q419,198 401,182 L374,156 Q365,148 357.5,141 > Q350,134 345,129 Q294,78 294,39 Q294,14 304,-7 L302,-9 Q288,26 254,26 > Q224,26 197,-12 Q190,-20 182,-34.5 Q174,-49 160,-49 Q156,-49 154,-48 > L149,-56 Q154,-61 167,-61 Q175,-61 198,-47 Q221,-33 244,-33 Q278,-33 > 300,-53.5 Q322,-74 322,-108 Q322,-120 317,-136.5 Q312,-153 298,-168 > Q284,-183 256,-191 Z" id="uniFD3E.0" fill="url(#g1)"/><path d="M217,-51 > Q172,-93 172,-144 Q162,-132 141,-132 Q115,-132 96,-152 L77,-173 Q68,-184 > 59,-184 Q48,-184 43,-181 L39,-191 Q52,-198 68,-215 Q84,-234 100.5,-248 > Q117,-262 141,-262 Q158,-262 172,-248 Q172,-298 217,-340 L225,-336 > Q220,-321 220,-311 Q220,-277 260,-266 Q292,-257 292,-233 Q292,-219 > 279.5,-210.5 Q267,-202 256,-195 Q270,-187 281,-180 Q292,-173 292,-159 > Q292,-134 260,-125 Q220,-114 220,-81 Q220,-70 225,-55 Z M184,-165 Q193,-183 > 215,-195 L215,-197 Q193,-209 184,-227 Q148,-220 148,-196 Q148,-173 184,-165 > Z" id="uniFD3E.1" fill="url(#g2)"/></defs><g id="glyph475"><use > xlink:href="#uniFD3E.0"/><use xlink:href="#uniFD3E.1"/></g><g > id="glyph476"><use xlink:href="#uniFD3E.0" x="485" y="-392" > transform="matrix(-1 0 0 -1 970 -784)"/><use xlink:href="#uniFD3E.1" > x="485" y="-392" transform="matrix(-1 0 0 -1 970 -784)"/></g></svg> > === > > So I am not sure what's going on - ftgrid /ftview seems to get the wrong > glyphs from 119 onwards, but the svg fragments themselves identify them as > the wrong numbers. (I cut and paste the above into inkscape and got a pair > of overlapping braces. see the "<g id="glyph475">" within. > > Hin-Tak >
