The Algebraic Metalanguage
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Mike Gerwitz 34fcd19cd0 tamer: obj::xmlo::reader: Replace todo! with error
These are no longer TODOs---they represent invalid tokens.

I'm going to put effort into providing further context with the diagnostic
system [right now] because these are internal errors caused by either
miscompilation or an incomplete reader.

2022-05-03 09:19:47 -04:00
bin bin/tame: Fix runner output line clearing 2022-01-28 09:21:34 -05:00
build-aux tame: build-aux/{csv2xml,tdat2xml}: Remove xml-stylesheet XML PI 2022-04-07 09:32:00 -04:00
core tame: @encoding="{ISO-8859-1=>utf-8}" for all XML-based files 2022-05-02 12:00:42 -04:00
design/tpl design/tpl (Matches): Refine matrix visualization figure 2021-05-27 10:59:52 -04:00
doc doc: Give @mdash macro an argument 2021-08-30 10:41:49 -04:00
progtest Copyright year update 2021 2021-07-22 15:00:15 -04:00
rater Clean up extclass remenants 2019-05-22 12:57:35 -04:00
src tame: src/current/compiler/worksheet: Place fragments in header 2022-05-03 09:11:13 -04:00
tamer tamer: obj::xmlo::reader: Replace todo! with error 2022-05-03 09:19:47 -04:00
test Copyright year update 2021 2021-07-22 15:00:15 -04:00
tools Copyright year update 2021 2021-07-22 15:00:15 -04:00
.gitignore design/tpl: The Tame Programming Language initial concept 2021-05-10 13:46:49 -04:00
.gitlab-ci.yml .gitlab-ci.yml: Skip main build after stage build 2021-10-07 15:55:22 -04:00
.gitmodules Documentation and testing scaffolding 2015-04-16 13:21:22 -04:00
.rev-xmle TAMER: Separate static xmle section 2020-02-26 10:49:01 -05:00
.rev-xmlo tame: src/current/compiler/worksheet: Place fragments in header 2022-05-03 09:11:13 -04:00
COPYING Initial repository setup 2015-04-14 05:35:36 -04:00
COPYING.FDL Initial repository setup 2015-04-14 05:35:36 -04:00
HACKING Copyright year simplification and update to Ryan Specialty Group 2019-02-07 13:23:09 -05:00 Copyright year update 2021 2021-07-22 15:00:15 -04:00 Mention Rust in upper paragraph alongside XSLT 2021-06-22 12:17:33 -04:00 Update for v19.0.3 2022-04-01 15:06:07 -04:00 Add generated VERSION 2016-08-23 11:33:51 -04:00
bootstrap tamer: cargo --frozen --offline 2021-12-02 11:49:51 -05:00
c1map.xsd c1map.xsd: Add schema 2017-07-05 13:51:28 -04:00 Copyright year update 2021 2021-07-22 15:00:15 -04:00
package-lock.json package{,-lock}.json additions 2020-08-19 15:39:50 -04:00


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.


Due to performance requirements, this project is currently being reimplemented in Rust. That project can be found in the tamer/ directory.


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.


Information for TAME developers can be found in the file HACKING.


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.