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tl: add some simplifications for first_match

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Following a discussion with Victor Khomenko.

* doc/tl/tl.tex: Document those rules.
* spot/tl/simplify.cc: Implement them.
* tests/core/reduccmp.test: Test them.
This commit is contained in:
Alexandre Duret-Lutz 2019-05-08 15:05:47 +02:00
parent b7cd475632
commit c6605e951d
3 changed files with 73 additions and 20 deletions
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12
tests/core/reduccmp.test
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@ -1,6 +1,6 @@
#! /bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2009-2014, 2016-2018 Laboratoire de Recherche et
# Copyright (C) 2009-2014, 2016-2019 Laboratoire de Recherche et
# Developpement de l'Epita (LRDE).
# Copyright (C) 2004, 2006 Laboratoire d'Informatique de Paris 6 (LIP6),
# département Systèmes Répartis Coopératifs (SRC), Université Pierre
@ -436,6 +436,16 @@ GF(a && GF(b) && c), G(F(a & c) & Fb)
# not reduced
{a;(b[*2..4];c*;([*0]+{d;e}))*}!, {a;(b[*2..4];c*;([*0]+{d;e}))*}!
{c[*];e[*]}[]-> a, {c[*];e[*]}[]-> a
# first_match
{first_match(a*);b}, b
{first_match(a)}, a
{first_match(a;b*)}, a
{first_match(a;c;b*)}, a & Xc
{first_match(a;c;b*;e)}, a & X(c & X{first_match(b[*];e)})
{first_match(a;c;b*;(e | [*0]))}, a & Xc
{first_match(a;c;b[+];(e | [*0]))}, a & X(c & Xb)
{first_match(b[+];(e | [*0]))}, b
{first_match(b[*2..3])}, b & Xb
EOF
run 0 ../reduccmp nottau.txt