Split build system into library and driver

1 files changed, 60 insertions, 0 deletions

diff --git a/libbuild2/token.cxx b/libbuild2/token.cxx
new file mode 100644
index 0000000..7455e26
--- /dev/null
+++ b/libbuild2/token.cxx
@@ -0,0 +1,60 @@
+// file      : libbuild2/token.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <libbuild2/token.hxx>
+
+using namespace std;
+
+namespace build2
+{
+  void
+  token_printer (ostream& os, const token& t, bool d)
+  {
+    // Only quote non-name tokens for diagnostics.
+    //
+    const char* q (d ? "'" : "");
+
+    switch (t.type)
+    {
+    case token_type::eos:            os << "<end of file>"; break;
+    case token_type::newline:        os << "<newline>"; break;
+    case token_type::pair_separator: os << "<pair separator " << t.value[0] << ">"; break;
+    case token_type::word:           os << '\'' << t.value << '\''; break;
+
+    case token_type::colon:          os << q << ':'  << q; break;
+    case token_type::dollar:         os << q << '$'  << q; break;
+    case token_type::question:       os << q << '?'  << q; break;
+    case token_type::comma:          os << q << ','  << q; break;
+
+    case token_type::lparen:         os << q << '('  << q; break;
+    case token_type::rparen:         os << q << ')'  << q; break;
+
+    case token_type::lcbrace:        os << q << '{'  << q; break;
+    case token_type::rcbrace:        os << q << '}'  << q; break;
+
+    case token_type::lsbrace:        os << q << '['  << q; break;
+    case token_type::rsbrace:        os << q << ']'  << q; break;
+
+    case token_type::labrace:        os << q << '<'  << q; break;
+    case token_type::rabrace:        os << q << '>'  << q; break;
+
+    case token_type::assign:         os << q << '='  << q; break;
+    case token_type::prepend:        os << q << "=+" << q; break;
+    case token_type::append:         os << q << "+=" << q; break;
+
+    case token_type::equal:          os << q << "==" << q; break;
+    case token_type::not_equal:      os << q << "!=" << q; break;
+    case token_type::less:           os << q << '<'  << q; break;
+    case token_type::greater:        os << q << '>'  << q; break;
+    case token_type::less_equal:     os << q << "<=" << q; break;
+    case token_type::greater_equal:  os << q << ">=" << q; break;
+
+    case token_type::log_or:         os << q << "||" << q; break;
+    case token_type::log_and:        os << q << "&&" << q; break;
+    case token_type::log_not:        os << q << '!'  << q; break;
+
+    default: assert (false); // Unhandled extended token.
+    }
+  }
+}