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libtexprintf's Issues

Misalignment 

target = \left\{
\begin{array}{ll}
cwnd                          &
\text{if } \mathrm{W_{cubic}}(t + RTT) < cwnd \\
1.5 * cwnd                    &
\text{if } \mathrm{W_{cubic}}(t + RTT) > 1.5 * cwnd \\
\mathrm{W_{cubic}}(t + RTT)   &
\text{otherwise} \\
\end{array} \right.

renders as

         ⎧
         ⎪cwnd            if  W     (t + RTT) < cwnd
         ⎪                     cubic
         ⎨1.5 * cwnd      if  W     (t + RTT) > 1.5 * cwnd
target = ⎪                     cubic
         ⎪W     (t + RTT) otherwise
         ⎩ cubic

the target = bit isn't vertically centered. Mathjax renders as follows:
Screenshot 2023-01-31 at 13 50 29

manpage not up to date 

$ utftex "a_{utc} < a_{ntp}"
a    < aₙₜₚ
 utc

In github, you may not be able to see the subscript characters that utftex uses for the "ntp" suffix.
(Maybe just copy/paste it to something else, e.g., pbpaste in terminal.)

Even worse than the interoperability problems here is the uneven handling of "utc" and "ntp" -- of course, I know why this happens, but I'd rather have a way to completely switch off the feature that uses subscript characters.

v1.18 build failure on Linux & macOS

Hello 👋 . I'm a maintainer for the Homebrew project. While packaging v1.18 of utftex we are encountering a build failure:

  make[1]: Entering directory '/tmp/utftex-20230524-5877-efo77/libtexprintf-1.18/src'
  /bin/bash ./gen_errorflags.sh ./boxes.c ./drawbox.c ./lexer.c ./parser.c
  /bin/bash ./gen_errorflags.sh ./boxes.c ./drawbox.c ./lexer.c ./parser.c
  Collecting error flags from ./boxes.c
  Collecting error flags from ./boxes.c
  Collecting error flags from ./drawbox.c
  Collecting error flags from ./drawbox.c
  Collecting error flags from ./lexer.c
  Collecting error flags from ./lexer.c
  Collecting error flags from ./parser.c
  Collecting error flags from ./parser.c
  rm: cannot remove 'tmperrflags': No such file or directory
  make[1]: *** [Makefile:1079: errorflags.h] Error 1
  make[1]: Leaving directory '/tmp/utftex-20230524-5877-efo77/libtexprintf-1.18/src'
  make: *** [Makefile:674: install-recursive] Error 1

The relevant GitHub Actions run can be found here.

Relates to Homebrew/homebrew-core#131899

Unicode primes

t' and t'' get rendered as-is using ASCII quotes, but they could be rendered using Unicode prime characters t′ and t″.

Here are several Unicode primes.

Sum not vertically centered

utftex '\\sum_{i=6}^{10}\\left[\\binom{A}{i} \\binom{L}{10-i}\\right]
produces

10
⎯⎯
╲  ⎡⎛A⎞ ⎛ L  ⎞⎤
╱  ⎢⎜ ⎟ ⎜    ⎟⎥
⎺⎺ ⎣⎝i⎠ ⎝10-i⎠⎦
i=6

Also, the bottom of the sum (⎺⎺) is using a different dash than the top (⎯⎯)?

Create a target for library

First, nice project! I think it would be cool to have a target on the Makefile for building as a library to be able to link to. I would like to help, but I don't know about automake neither autoconf.

New release?

There are several commits that are not yet in a new release. Is it worth to make a new release with them?

maintainer-clean fails on mac-os

CI fails on mac-os with the following log:
8_Clean.txt

Not sure why and I have no mac to reproduce. Error first came up after updating the README, so it seems the problem comes from a change in build environment, rather than a change in libtexprintf itself.

1.17 building fails 

aclocal: warning: couldn't open directory 'm4': No such file or directory
glibtoolize: putting auxiliary files in '.'.
glibtoolize: copying file './ltmain.sh'
glibtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
glibtoolize: copying file 'm4/libtool.m4'
glibtoolize: copying file 'm4/ltoptions.m4'
glibtoolize: copying file 'm4/ltsugar.m4'
glibtoolize: copying file 'm4/ltversion.m4'
glibtoolize: copying file 'm4/lt~obsolete.m4'
glibtoolize: Consider adding '-I m4' to ACLOCAL_AMFLAGS in Makefile.am.
configure.ac:3: warning: The macro `AC_PROG_LIBTOOL' is obsolete.
configure.ac:3: You should run autoupdate.
m4/libtool.m4:100: AC_PROG_LIBTOOL is expanded from...
configure.ac:3: the top level
configure.ac:5: warning: The macro `AM_ENABLE_SHARED' is obsolete.
configure.ac:5: You should run autoupdate.
m4/ltoptions.m4:205: AM_ENABLE_SHARED is expanded from...
configure.ac:5: the top level
configure.ac:3: installing './compile'
configure.ac:3: installing './config.guess'
configure.ac:3: installing './config.sub'
configure.ac:7: installing './install-sh'
configure.ac:7: installing './missing'
configure.ac:48: error: required file 'test/mathjax_examples.tex' not found
configure.ac:70: error: required file 'test/mathjax_examples.ref' not found
configure.ac:93: error: required file 'test/mathjax_examples-A.ref' not found
parallel-tests: installing './test-driver'
src/Makefile.am: installing './depcomp'
autoreconf: error: automake failed with exit status: 1
BuildError: Failed executing: ./autogen.sh

Switch to math from a text block

Currently libtexprintf does not support switching back to a math environment from a text block. For example:

\text{blah $math$ blah}

renders as

blag $math$ blah

Use Unicode subscripts/superscripts where available?

Currently t_0 renders as

t
 0

However, Unicode has a 0 subscript character, so it could render more cleanly as t₀.

In general, if a subscript or superscript consists entirely of characters available as such in Unicode, it would be nice to render them that way (with the current behavior as a fallback for characters lacking Unicode sub/superscripts).

The available Unicode superscripts are ²³¹ʰʲʳʷʸˡˢˣᴬᴮᴰᴱᴳᴴᴵᴶᴷᴸᴹᴺᴼᴾᴿᵀᵁᵂᵃᵇᵈᵉᵍᵏᵐᵒᵖᵗᵘᵛᶜᶠᶻ⁰ⁱ⁴⁵⁶⁷⁸⁹⁺⁻⁼⁽⁾ⁿⱽꜝ and the subscripts are ᵢᵣᵤᵥ₀₁₂₃₄₅₆₇₈₉₊₋₌₍₎ₐₑₒₓₕₖₗₘₙₚₛₜⱼ

(In general, there are a lot of Unicode characters that you could potentially be using. See https://github.com/JuliaLang/julia/blob/master/stdlib/REPL/src/latex_symbols.jl for a list mapping them from LaTeX and LaTeX-like \symbols.)

LaTeX token don't work correctly

Stuff like \frac 1\alpha or \frac {1}\alpha, which is valid LaTeX math produce errors:

❯ utftex '\frac 1 \alpha'

ERROR: Too few mandatory arguments to command (1x)

❯ utftex '\frac{1}\alpha'
Error, string is not proper UTF-8 code
Error, string is not proper UTF-8 code
1
─

Gui for utftex

I made a GUI using PyQt6. It should be easily translatable to PySide6. It borrows a lot of ideas from AsciiTeX.

It's designed to be made into an executable file with PyInstaller.

utftexgui.zip

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