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# Context & Sequence Matching for Unranked Terms

This is a Java implementation of the algorithm M described in:

Input Syntax:
• The symbols [A-Za-z1-9_.] are allowed for variable names and function names. Names can be of any length.
• If the name is followed by an opening parenthesis, then it is either a function symbol, a function variable, or a context variable.
• If the name starts with a lower case letter, then it is a function symbol.
• Otherwise, if the first letter of the name is within [C,D] or [U,Z], then it is a context variable.
• Otherwise, the name is a function variable.
• Otherwise, if the name starts with an upper case letter, then it is a hedge variable.
• Otherwise, if the first letter of the name is within [u,z], then it is a term variable.
• Otherwise, the name is a constant.
 Matching problem:(Use the semicolon to separate the equations of the system.) f(a,X) << f(a,b,c,d) Justify computed matchers: Output format: SimpleProgress

This software is released under the GNU Lesser General Public License ("LGPL"). For presentation purpose, the Java source code has been translated into JavaScript by the GWT compiler.
Some examples (click on them to prepared the input form):

 C(f(X)) << g(f(a,b),h(f(a),f)) C(G(X)) << f(f(a,b),c)) f(X, x, Y) << f(f(a), b, a, b)

 Author: Alexander Baumgartner Project: SToUT - Symbolic Computation Techniques for Unranked Terms