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CLI2: Integrated Lexer::decomposePair

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This commit is contained in:
Paul Beckingham 2015-07-08 09:48:15 -04:00
parent e6c4f48a48
commit 5a21945a0d
1 changed files with 126 additions and 142 deletions
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56
src/CLI2.cpp
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@ -1031,32 +1031,13 @@ void CLI2::desugarFilterAttributes ()
if (a._lextype == Lexer::Type::pair &&
a.hasTag ("FILTER"))
{
changes = true;
auto raw = a.attribute ("raw");
auto dot = raw.find ('.');
auto colon = raw.find (':');
if (colon == std::string::npos)
colon = raw.find ('=');
std::string name = "";
std::string mod = "";
std::string value = "";
// If the dot appears after the colon, then it is part of the value, and
// should be ignored.
if (dot != std::string::npos &&
dot < colon)
std::string raw = a.attribute ("raw");
std::string name;
std::string mod;
std::string sep;
std::string value;
if (Lexer::decomposePair (raw, name, mod, sep, value))
{
name = raw.substr (0, dot);
mod = raw.substr (dot + 1, colon - dot - 1);
}
else
{
name = raw.substr (0, colon);
}
value = raw.substr (colon + 1);
if (value == "")
value = "''";
@ -1071,18 +1052,9 @@ void CLI2::desugarFilterAttributes ()
reconstructed.push_back (lhs);
found = true;
}
else
else if (canonicalize (canonical, "attribute", name) ||
canonicalize (canonical, "uda", name))
{
// If the name does not canonicalize to either an attribute or a UDA
// then it is not a recognized Lexer::Type::pair, so downgrade it to
// Lexer::Type::word.
if (! canonicalize (canonical, "attribute", name) &&
! canonicalize (canonical, "uda", name))
{
a._lextype = Lexer::Type::word;
continue;
}
// TODO The "!" modifier is being dropped.
A2 lhs (name, Lexer::Type::dom);
@ -1182,12 +1154,24 @@ void CLI2::desugarFilterAttributes ()
reconstructed.push_back (rhs);
found = true;
}
// If the name does not canonicalize to either an attribute or a UDA
// then it is not a recognized Lexer::Type::pair, so downgrade it to
// Lexer::Type::word.
else
{
a._lextype = Lexer::Type::word;
}
if (found)
changes = true;
else
reconstructed.push_back (a);
}
// Failed to decompose.
else
reconstructed.push_back (a);
}
// Not a FILTER pair.
else
reconstructed.push_back (a);
}