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Fix pretty printer for evaluator

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2013-09-05 18:57:29 -07:00
parent 71d76a891c
commit b3a095b068
1 changed files with 4 additions and 2 deletions
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6
src/frontends/lean/lean_elaborator.cpp
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@ -24,7 +24,8 @@ namespace lean {
static name g_choice_name(name(name(name(0u), "library"), "choice"));
static expr g_choice = mk_constant(g_choice_name);
static format g_assignment_fmt = format(":=");
static format g_unification_fmt = format("\u2248");
static format g_unification_u_fmt = format("\u2248");
static format g_unification_fmt = format("=?=");
expr mk_choice(unsigned num_fs, expr const * fs) {
lean_assert(num_fs >= 2);
@ -818,11 +819,12 @@ public:
}
format pp(formatter & f, options const & o) const {
bool unicode = get_pp_unicode(o);
format r;
bool first = true;
for (auto c : m_constraints) {
if (first) first = false; else r += line();
r += group(format{f(c.m_lhs, o), space(), g_unification_fmt, line(), f(c.m_rhs, o)});
r += group(format{f(c.m_lhs, o), space(), unicode ? g_unification_u_fmt : g_unification_fmt, line(), f(c.m_rhs, o)});
}
return r;
}