Mike Gerwitz
c19ecba6ef
This enforces the new constraint that templates expanding into an `Expr` context must only inline a single `Expr`. Perhaps in the future we'll support explicit splicing, like `,@` in Lisp. But this new restriction is intended for two purposes: - To make templates more predictable (if you have a list of expressions inlined then they will act differently depending on the type of expression that they are inlined into, which means that more defensive programming would otherwise be required); and - To make expansion easier, since we're going to have to set aside an expansion workspace ahead of time to ensure ordering (Petgraph can't replace edges in-place). If we support multi-expansion, we'd have to handle associativity in all expression contexts. This'll become more clear in future commits. It's nice to see all this hard work coming together now, though; it's easy now to perform static analysis on the system, and any part of the graph construction can throw errors with rich diagnostic information and still recover properly. And, importantly, the system enforces its own state, and the compiler helps us with that (the previous commits). DEV-13163 |
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bin | ||
build-aux | ||
core | ||
design/tpl | ||
doc | ||
progtest | ||
rater | ||
src | ||
tamer | ||
test | ||
tools | ||
.gitignore | ||
.gitlab-ci.yml | ||
.gitmodules | ||
.rev-xmle | ||
.rev-xmlo | ||
COPYING | ||
COPYING.FDL | ||
HACKING | ||
Makefile.am | ||
README.md | ||
RELEASES.md | ||
VERSION.in | ||
bootstrap | ||
c1map.xsd | ||
configure.ac | ||
package-lock.json |
README.md
TAME
TAME is The Algebraic Metalanguage, a programming language and system of tools designed to aid in the development, understanding, and maintenance of systems performing numerous calculations on a complex graph of dependencies, conditions, and a large number of inputs.
This system was developed at Ryan Specialty Group (formerly LoVullo Associates) to handle the complexity of comparative insurance rating systems. It is a domain-specific language (DSL) that itself encourages, through the use of templates, the creation of sub-DSLs. TAME itself is at heart a calculator—processing only numerical input and output—driven by quantifiers as predicates. Calculations and quantifiers are written declaratively without concern for order of execution.
The system has powerful dependency resolution and data flow capabilities.
TAME consists of a macro processor (implementing a metalanguage), numerous compilers for various targets (JavaScript, HTML documentation and debugging environment, LaTeX, and others), linkers, and supporting tools. The input grammar is XML, and the majority of the project (including the macro processor, compilers, and linkers) is written in a combination of XSLT and Rust.
TAMER
Due to performance requirements, this project is currently being reimplemented in Rust. That project can be found in the tamer/ directory.
Documentation
Compiled documentation for the latest release is available via our GitLab mirror, which uses the same build pipeline as we do on our internal GitLab instance. Available formats are:
Getting Started
To get started, make sure Saxon version 9 or later is available and its path
set as SAXON_CP
; that the path to hoxsl is set via HOXSL
; and then run
the bootstrap
script:
$ export SAXON_CP=/path/to/saxon9he.jar
$ export HOXSL=/path/to/hoxsl/root
$ ./boostrap
Running Test Cases
To run the test cases, invoke make check
(or its alias, make test
).
Testing Core Features
In order to run tests located at core/test/core/**
, a supporting environment
is required. (e.g. mega rater). Inside a supporting rater, either check out a
submodule containing the core tests, or temporarily add them into the
submodule.
Build the core test suite summary page using:
$ make rater/core/test/core/suite.html
Visit the summary page in a web browser and click the Calculate Premium button. If all test cases pass, it will yield a value of $1.
Hacking
Information for TAME developers can be found in the file HACKING
.
License
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.