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Moved the regex splitting into rewriter

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Added some simplifications
This commit is contained in:
CEisenhofer 2026-06-10 15:00:42 +02:00
parent 03a76c0309
commit dbb3f70873
7 changed files with 484 additions and 324 deletions
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10
src/ast/rewriter/seq_rewriter.h
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@ -24,6 +24,7 @@ Notes:
#include "ast/rewriter/rewriter_types.h"
#include "ast/rewriter/bool_rewriter.h"
#include "ast/rewriter/seq_subset.h"
#include "ast/rewriter/seq_split.h"
#include "util/params.h"
#include "util/lbool.h"
#include "util/sign.h"
@ -130,6 +131,7 @@ class seq_rewriter {
seq_util m_util;
seq_subset m_subset;
seq_split m_split;
arith_util m_autil;
bool_rewriter m_br;
// re2automaton m_re2aut;
@ -342,7 +344,7 @@ class seq_rewriter {
public:
seq_rewriter(ast_manager & m, params_ref const & p = params_ref()):
m_util(m), m_subset(m_util.re), m_autil(m), m_br(m, p), // m_re2aut(m),
m_util(m), m_subset(m_util.re), m_split(*this), m_autil(m), m_br(m, p), // m_re2aut(m),
m_op_cache(m), m_es(m),
m_lhs(m), m_rhs(m), m_coalesce_chars(true) {
}
@ -381,6 +383,12 @@ public:
return result;
}
// Split decomposition (sigma) of a regex; see seq_split.h.
bool split(expr* r, split_set& out, unsigned threshold, split_mode mode = split_mode::strong) {
return m_split.compute(r, out, threshold, mode);
}
void simplify_split(split_set& s) { m_split.simplify(s); }
expr_ref mk_symmetric_diff(expr *r1, expr *r2);
/**