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Once upon a time the website committee of Marie-Curie decided it would be nice to have a TeX-to-HTML converter because all physics students must be familiar with LaTeX. The first version was a horrible regex-based monstrosity that you can go and look at and shiver in horror. This version, however, is actually practical to use!

Go to the in-browser preview to try it!

Getting Started


MarTeX-Cpp can be built as a module for several other languages. Currently supported are PHP, FFI and WebAssembly and an option to build as a simple utility using standard i/o.

A common dependencies for all module options is a C++ compiler with full C++11 support (gcc 4.8.1 or higher, clang 3.3). The makefile is set up to work with gcc but this can be easily changed in the config files.

MarTeX-Cpp's PHP module was tested with PHP versions 7.1, 7.2 and 7.3. To build it you first need your relevant php development package and then you need to install the PHP-CPP library. Please checkout the repository of php-cpp with commit hash 7b975bd1df65174d79241e555ef82c7f9c3538a2 to ensure matching versions.

MarTeX-Cpp's WebAssembly module uses the emscripten compiler. Make sure the em++ command is on your PATH by sourcing

MarTeX-FFI and the simple MarTeX-Cpp utility program have no further dependencies.


If you have obtained a clone of the repository you can build the project:

As PHP module:

If you are running PHP version 7.4 it is recommended you use the MarTeX FFI version instead. Find an example way to call into the FFI system in res/martex.php and res/martex_ffi_c.h. For older versions use this method:

make target=php

this will result in a php extension called in the bin folder. You can find out where to put it by typing:

php-config --extension-dir

Now you need to add "" to your php.ini file or add it as separate .ini (example in res/martex.ini) in the php loading process. Your milage may vary but the location of these .ini's is /etc/php/7.1/mods-available on my system. You should then be able to use:

phpenmod martex

to activate the module.

As WebAssembly module:

make target=wasm

This will yield a martex.wasm and a martex.js file in the bin folder. Host these with a webserver to run MarTeX-Cpp directly in a browser. The file res/wasm.html demonstrates the usage.

As FFI module:

Call into MarTeX as a standard C library. Compile the .so file using:

make target=ffi

Use the resulting together with martex_ffi_c.h from the res folder. A php ffi wrapper is already available. To use the library system-wide put in a folder like /usr/lib.

As simple utility

make target=cpp

This will yield a file martex in the bin folder. It takes TeX over standard input, will output the result over standard output and report errors over standard error.


You might complain that my test file format is weird and is annoying to parse. I like it however, because it allows you to describe tests in however much detail you want and is also language independant, which is important because I would like to be able to run the tests in whatever module form I desire.

Project structure

├── bin                 # build output
├── config              # makefile environment variables for different targets
├── documentation       # MarTeX usage documentation rendered with MarTeX-Cpp
├── obj                 # object and dependency files
├── res                 # resources
├── src                 # source code
│   ├── core            # the common core code for all targets
│   │   ├── language    # implementation of the TeX language parser
│   │   ├── modules     # standard library of commands and environments
│   │   └── util        # utility functions, mostly string checks
│   ├── cpp             # simple utility source
│   ├── php             # Php module source. Most code has to do with conversion of values.
│   ├── ffi             # FFI module source.
│   └── wasm            # Webassembly module source.
└── tests               # Tests in old php style.


Please feel free to submit anything!

Bug Bounty Program

If you find a way insert arbitrary html tags and/or get javascript execution from a certain input string then first I'd like to congratualate you on a job well done! Please contact me privately with said input and we'll work on pushing out a fix as quickly as possible. Because I'm still a student there is unfortunately no hard cash to be made here, but certainly there is coffee and cake in it for you!



Thanks to my committee for their endless patience and enthusiasm while listening to me whining on about this.

Thanks to Diego Perini for writing a nifty regex-based URL validator.


This project is licensed under the MIT License - see the file for details


A fast and flexible TeX-to-HTML transpiler.








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