A RELAX-NG schema as the formal specification of the PreTeXt vocabulary. Read the Author's Guide for complete documentation.

• pretext.xml: original version as a PreTeXt literate program. Submit pull requests against this version only, all the others are derived copies.
• pretext.rnc: direct product from pretext.xml, RELAX-NG compact syntax
• pretext.rng: conversion from pretext.xml via trang, RELAX-NG XML syntax
• pretext.xsd: conversion from pretext.rng via trang, W3C XSD syntax, with resultant minor inaccuracies
• build.sh: build script for above. Copy and edit local paths, or use as documentation