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sorear's Metamath system engine
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This is smm (aka smetamath), a library to read and manipulate .mm files used by the Metamath System (http://us.metamath.org/). It is written in Javascript (ES6 using Babel), and is known to work with io.js (recommended) 2.2.1 and 2.0.1, as well as node.js 0.8.28 and 0.10.38. node.js 0.12.4 displays a strange test failure, I'd avoid it for smm. It is distributed under the MIT license (LICENSE). To install prerequisites and use smm to verify a set.mm file: 1. Install nvm from https://github.com/creationix/nvm (this will hack your shell rcfile, and only works with Bourneish shells on Unix; if not Unix, skip this step) 2. Install io.js 2+ and npm via "nvm install iojs" (Unix); (There is an official io.js installer for Windows. This worked with the pre-Babel version and may still work.) 3. Download dependencies with "npm install" with the current directory as the smm checkout. 4. Run self-tests: npm test 5. Make node-babel available: npm install -g babel 6. Use it: node-babel misc/verify.js ../set.mm 7. Ahead of time testing (somewhat faster, use this for benchmarks): $$$ mkdir out $$$ babel lib -d out/lib lib/ABRStringStore.js -> out/lib/ABRStringStore.js lib/ConsoleErrorFormatter.js -> out/lib/ConsoleErrorFormatter.js lib/MMOM.js -> out/lib/MMOM.js lib/NodeIO.js -> out/lib/NodeIO.js lib/Parser.js -> out/lib/Parser.js lib/Scoper.js -> out/lib/Scoper.js lib/Verifier.js -> out/lib/Verifier.js $$$ babel misc -d out/misc misc/abr_stress.js -> out/misc/abr_stress.js misc/gen_expon.js -> out/misc/gen_expon.js misc/line_stress.js -> out/misc/line_stress.js misc/repl.js -> out/misc/repl.js misc/verify.js -> out/misc/verify.js $$$ node out/misc/verify.js .../set.mm/set.mm parse 778 ms scope 232 ms parser 667 ms verify 4422 ms
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