Package: emacs-gtk Version: 1:25.2+1-11 Severity: normal Dear Maintainer,
What led up to this situation is a correspondent sent me an e-mail containing a UTF-8 emoticon which rendered without problems under the konsole application for KDE, but when I edited my reply to him using emacs I noticed all my quotation of his emoticon was being rendered as a box with numbers inside indicating emacs understands the UTF-8 and transforms it into UCS4 (the numbers within the box) without issues, but somehow cannot access the correct system fonts to render those characters properly. I then checked in some detail with gucharmap (a GTK application) and I spot sampled from the emoticons block, e.g., "😀😁😂😃😄", and gucharmap renders those glyphs without issues, but they are all rendered in block form under emacs for the particular set of font packages I have loaded. And I found similar good rendering results for gucharmap and block-form rendering results for emacs for glyphs sampled from the "Miscellaneous Symbols and Pictographs" and "Playing Cards" unicode blocks. Anyhow, I don't understand why gucharmap (which depends on the suite of GTK libraries such as pango, cairo, and fontconfig) and emacs-gtk (which from its name presumably also depends on the suite of GTK libraries) are getting such different results for certain unicode blocks when they get the same (good) rendering results for many other unicode blocks. One possibility to explain this rendering difference between gucharmap and emacs-gtk is gucharmap is using fontconfig to find system fonts and emacs-gtk might be using some other method that does not match up to the quality of fontconfig. Or emacs-gtk may be using fontconfig with a specific list of font names to search rather than letting fontconfig do its job by specifying generic font names such as "sans", "serif", etc. In other words, it is possible I could work around this font-finding bug in emacs by installing particular system fonts that emacs-gtk happens to be able to find with its present font-finding algorithm. However, I would far prefer to see a fundamental solution such as emacs-gtk using generic font names and font-config to find unicode-aware system fonts since that method appears to give complete access to all such fonts and the present font-finding method emacs-gtk uses clearly does not do that for the set of Debian system fonts I have presently installed. I used the "dpkg --list |grep -i font" command to provide the following list of all currently installed packages that have anything to do with fonts: ii aglfn 1.7-3 all Adobe Glyph List For New Fonts ii console-setup 1.187 all console font and keymap setup program ii fontconfig 2.13.1-2 amd64 generic font configuration library - support binaries ii fontconfig-config 2.13.1-2 all generic font configuration library - configuration ii fonts-adf-oldania 0.20110505-3 all Oldania font of the Arkandis Digital Foundry ii fonts-dejavu 2.37-1 all metapackage to pull in fonts-dejavu-core and fonts-dejavu-extra ii fonts-dejavu-core 2.37-1 all Vera font family derivate with additional characters ii fonts-dejavu-extra 2.37-1 all Vera font family derivate with additional characters (extra variants) ii fonts-droid-fallback 1:6.0.1r16-1.1 all handheld device font with extensive style and language support (fallback) ii fonts-font-awesome 5.0.10+really4.7.0~dfsg-1 all iconic font designed for use with Twitter Bootstrap ii fonts-freefont-otf 20120503-8 all Freefont Serif, Sans and Mono OpenType fonts ii fonts-freefont-ttf 20120503-8 all Freefont Serif, Sans and Mono Truetype fonts ii fonts-gfs-baskerville 1.1-5 all ancient Greek font revival ii fonts-gfs-porson 1.1-6 all Greek font (Porson revival) ii fonts-hack 3.003-1 all Typeface designed for source code ii fonts-lato 2.0-2 all sans-serif typeface family font ii fonts-lmodern 2.004.5-5 all OpenType fonts based on Computer Modern ii fonts-noto 20171026-2 all metapackage to pull in all Noto fonts ii fonts-noto-cjk 1:20170601+repack1-3 all "No Tofu" font families with large Unicode coverage (CJK regular and bold) ii fonts-noto-hinted 20171026-2 all "No Tofu" font families with large Unicode coverage (hinted) ii fonts-noto-mono 20171026-2 all "No Tofu" monospaced font family with large Unicode coverage ii fonts-noto-unhinted 20171026-2 all "No Tofu" font families with large Unicode coverage (unhinted) ii fonts-roboto-slab 1.100263+20170512-1 all Google's signature family of fonts (slab) ii fonts-texgyre 20180621-2 all OpenType fonts based on URW Fonts ii freetype2-doc 2.9.1-3 all FreeType 2 font engine, development documentation ii gsfonts 1:8.11+urwcyr1.0.7~pre44-4.4 all Fonts for the Ghostscript interpreter(s) ii gucharmap 1:11.0.3-1 amd64 Unicode character picker and font browser ii kbd 2.0.4-4 amd64 Linux console font and keytable utilities ii libfont-afm-perl 1.20-2 all Font::AFM - Interface to Adobe Font Metrics files ii libfontconfig1:amd64 2.13.1-2 amd64 generic font configuration library - runtime ii libfontconfig1-dev:amd64 2.13.1-2 amd64 generic font configuration library - development ii libfontenc1:amd64 1:1.1.3-1+b2 amd64 X11 font encoding library ii libfreetype6:amd64 2.9.1-3 amd64 FreeType 2 font engine, shared library files ii libfreetype6-dev:amd64 2.9.1-3 amd64 FreeType 2 font engine, development files ii libgraphite2-3:amd64 1.3.12-1 amd64 Font rendering engine for Complex Scripts -- library ii libkfontinst5 4:5.14.3-1 amd64 Tools and widgets for the desktop library ii libkfontinstui5 4:5.14.3-1 amd64 Tools and widgets for the desktop library ii libotf0:amd64 0.9.13-4 amd64 Library for handling OpenType Font - runtime ii libsdl-ttf2.0-0:amd64 2.0.11-5 amd64 TrueType Font library for Simple DirectMedia Layer 1.2, libraries ii libsdl2-ttf-2.0-0:amd64 2.0.14+dfsg1-3 amd64 TrueType Font library for Simple DirectMedia Layer 2, libraries ii libwoff1:amd64 1.0.2-1 amd64 library for converting fonts to WOFF 2.0 ii libxfont2:amd64 1:2.0.3-1 amd64 X11 font rasterisation library ii libxft-dev:amd64 2.3.2-2 amd64 FreeType-based font drawing library for X (development files) ii libxft2:amd64 2.3.2-2 amd64 FreeType-based font drawing library for X ii lmodern 2.004.5-5 all scalable PostScript and OpenType fonts based on Computer Modern ii t1utils 1.41-2 amd64 Collection of simple Type 1 font manipulation programs ii tex-gyre 20180621-2 all scalable PostScript and OpenType fonts based on URW Fonts ii texlive-fonts-recommended 2018.20181116-1 all TeX Live: Recommended fonts ii timgm6mb-soundfont 1.3-2 all TimGM6mb SoundFont from MuseScore 1.3 ii xfonts-100dpi 1:1.0.4+nmu1 all 100 dpi fonts for X ii xfonts-75dpi 1:1.0.4+nmu1 all 75 dpi fonts for X ii xfonts-base 1:1.0.4+nmu1 all standard fonts for X ii xfonts-encodings 1:1.0.4-2 all Encodings for X.Org fonts ii xfonts-scalable 1:1.0.3-1.1 all scalable fonts for X ii xfonts-utils 1:7.7+6 amd64 X Window System font utility programs Alan -- System Information: Debian Release: buster/sid APT prefers testing-debug APT policy: (500, 'testing-debug'), (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 4.18.10-custom (SMP w/16 CPU cores) Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages emacs-gtk depends on: ii emacs-bin-common 1:25.2+1-11 ii emacs-common 1:25.2+1-11 ii libacl1 2.2.52-3+b1 ii libasound2 1.1.7-1+b1 ii libatk1.0-0 2.30.0-1 ii libc6 2.27-8 ii libcairo-gobject2 1.16.0-1 ii libcairo2 1.16.0-1 ii libdbus-1-3 1.12.10-1 ii libfontconfig1 2.13.1-2 ii libfreetype6 2.9.1-3 ii libgdk-pixbuf2.0-0 2.38.0+dfsg-6 ii libgif7 5.1.4-3 ii libglib2.0-0 2.58.1-2 ii libgnutls30 3.5.19-1+b1 ii libgomp1 8.2.0-9 ii libgpm2 1.20.7-5 ii libgtk-3-0 3.24.1-2 ii libice6 2:1.0.9-2 ii libjpeg62-turbo 1:1.5.2-2+b1 ii libm17n-0 1.8.0-2 ii libmagickcore-6.q16-6 8:6.9.10.14+dfsg-7 ii libmagickwand-6.q16-6 8:6.9.10.14+dfsg-7 ii libotf0 0.9.13-4 ii libpango-1.0-0 1.42.4-4 ii libpangocairo-1.0-0 1.42.4-4 ii libpng16-16 1.6.34-2 ii librsvg2-2 2.44.9-1 ii libselinux1 2.8-1+b1 ii libsm6 2:1.2.2-1+b3 ii libtiff5 4.0.10-3 ii libtinfo6 6.1+20181013-1 ii libx11-6 2:1.6.7-1 ii libx11-xcb1 2:1.6.7-1 ii libxcb1 1.13.1-1 ii libxfixes3 1:5.0.3-1 ii libxft2 2.3.2-2 ii libxinerama1 2:1.1.4-1 ii libxml2 2.9.4+dfsg1-7+b2 ii libxpm4 1:3.5.12-1 ii libxrandr2 2:1.5.1-1 ii libxrender1 1:0.9.10-1 ii zlib1g 1:1.2.11.dfsg-1 emacs-gtk recommends no packages. Versions of packages emacs-gtk suggests: pn emacs-common-non-dfsg <none> -- no debconf information
