1 files changed, 179 insertions, 0 deletions
diff --git a/old-tests/lexer/driver.cxx b/old-tests/lexer/driver.cxx
new file mode 100644
index 0000000..5575956
--- /dev/null
+++ b/old-tests/lexer/driver.cxx
@@ -0,0 +1,179 @@
+// file      : tests/build/lexer/driver.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <string>
+#include <vector>
+#include <cassert>
+#include <sstream>
+#include <iostream>
+
+#include <build/token>
+#include <build/lexer>
+
+using namespace std;
+using namespace build;
+
+using tokens = vector<string>;
+
+static tokens
+lex (const char*);
+
+ostream&
+operator<< (ostream&, const tokens&);
+
+int
+main ()
+{
+  ostream cnull (nullptr);
+  diag_stream = &cnull;
+
+  // Whitespaces.
+  //
+  assert (lex ("") == tokens ({""}));
+  assert (lex ("\n") == tokens ({""}));
+  assert (lex ("\n\n") == tokens ({""}));
+  assert (lex (" \t  \n") == tokens ({""}));
+  assert (lex ("#comment") == tokens ({""}));
+  assert (lex ("  #comment") == tokens ({""}));
+  assert (lex ("#comment\n") == tokens ({""}));
+  assert (lex ("#comment\\\n") == tokens ({""}));
+  assert (lex ("#comment 1\n#comment2") == tokens ({""}));
+
+  // Punctuation.
+  //
+  assert (lex (": \n { }") == tokens ({":", "\n", "{", "}", ""}));
+
+  // Names.
+  //
+  assert (lex ("foo") == tokens ({"foo", ""}));
+  assert (lex ("foo.bar") == tokens ({"foo.bar", ""}));
+
+  // Escaping.
+  //
+  assert (lex ("  \\\n") == tokens ({""}));
+  assert (lex ("\\\nfoo") == tokens ({"foo", ""}));
+  assert (lex (" \\ foo") == tokens ({" foo", ""}));
+  assert (lex ("fo\\ o\\:") == tokens ({"fo o:", ""}));
+  assert (lex ("foo\\\nbar") == tokens ({"foobar", ""}));
+  assert (lex ("foo \\\nbar") == tokens ({"foo", "bar", ""}));
+  assert (lex ("\\'foo") == tokens ({"'foo", ""}));
+
+  assert (lex ("  \\") == tokens ({"<lexer error>"}));
+  assert (lex ("  foo\\") == tokens ({"<lexer error>"}));
+
+
+  // Quoting ''.
+  //
+  assert (lex ("''") == tokens ({"", ""}));
+  assert (lex ("'foo'") == tokens ({"foo", ""}));
+  assert (lex ("'foo bar'") == tokens ({"foo bar", ""}));
+  assert (lex ("'foo 'bar") == tokens ({"foo bar", ""}));
+  assert (lex ("foo' bar'") == tokens ({"foo bar", ""}));
+  assert (lex ("'foo ''bar'") == tokens ({"foo bar", ""}));
+  assert (lex ("foo' 'bar") == tokens ({"foo bar", ""}));
+  assert (lex ("'foo\nbar'") == tokens ({"foo\nbar", ""}));
+  assert (lex ("'#:${}()=+\n'") == tokens ({"#:${}()=+\n", ""}));
+  assert (lex ("'\"'") == tokens ({"\"", ""}));
+  assert (lex ("'\\'") == tokens ({"\\", ""}));
+
+  assert (lex ("'foo bar") == tokens ({"<lexer error>"}));
+
+  // Quoting "".
+  //
+  assert (lex ("\"\"") == tokens ({"", ""}));
+  assert (lex ("\"foo\"") == tokens ({"foo", ""}));
+  assert (lex ("\"foo bar\"") == tokens ({"foo bar", ""}));
+  assert (lex ("\"foo \"bar") == tokens ({"foo bar", ""}));
+  assert (lex ("foo\" bar\"") == tokens ({"foo bar", ""}));
+  assert (lex ("\"foo \"\"bar\"") == tokens ({"foo bar", ""}));
+  assert (lex ("foo\" \"bar") == tokens ({"foo bar", ""}));
+  assert (lex ("\"foo\nbar\"") == tokens ({"foo\nbar", ""}));
+  assert (lex ("\"#:{})=+\n\"") == tokens ({"#:{})=+\n", ""}));
+  assert (lex ("\"'\"") == tokens ({"'", ""}));
+  assert (lex ("\"\\\"") == tokens ({"\\", ""}));
+
+  assert (lex ("\"$\"") == tokens ({"", "$", "", ""}));
+  assert (lex ("\"foo$bar\"") == tokens ({"foo", "$", "bar", ""}));
+  assert (lex ("foo\"$\"bar") == tokens ({"foo", "$", "bar", ""}));
+  assert (lex ("f\"oo$ba\"r") == tokens ({"foo", "$", "bar", ""}));
+
+  assert (lex ("\"foo bar") == tokens ({"<lexer error>"}));
+  assert (lex ("\"foo $") == tokens ({"foo ", "$", "<lexer error>"}));
+  assert (lex ("\"foo $bar") == tokens ({"foo ", "$", "<lexer error>"}));
+
+  // Combinations.
+  //
+  assert (lex ("foo: bar") == tokens ({"foo", ":", "bar", ""}));
+  assert (lex ("\n \nfoo: bar") == tokens ({"foo", ":", "bar", ""}));
+  assert (lex ("foo: bar\n") == tokens ({"foo", ":", "bar", "\n", ""}));
+  assert (lex ("foo: bar#comment") == tokens ({"foo", ":", "bar", ""}));
+  assert (lex ("exe{foo}: obj{bar}") ==
+          tokens ({"exe", "{", "foo", "}", ":", "obj", "{", "bar", "}", ""}));
+  assert (lex ("foo: bar\nbaz: biz") ==
+          tokens ({"foo", ":", "bar", "\n", "baz", ":", "biz", ""}));
+  assert (lex ("foo: bar#comment\nbaz: biz") ==
+          tokens ({"foo", ":", "bar", "\n", "baz", ":", "biz", ""}));
+  assert (lex ("foo:#comment \\\nbar") ==
+          tokens ({"foo", ":", "\n", "bar", ""}));
+}
+
+static tokens
+lex (const char* s)
+{
+  tokens r;
+  istringstream is (s);
+
+  is.exceptions (istream::failbit | istream::badbit);
+  lexer l (is, "");
+
+  try
+  {
+    for (token t (l.next ());; t = l.next ())
+    {
+      string v;
+
+      switch (t.type)
+      {
+      case token_type::eos:            v = ""; break;
+      case token_type::newline:        v = "\n"; break;
+      case token_type::pair_separator: v = l.pair_separator (); break;
+      case token_type::colon:          v = ":"; break;
+      case token_type::lcbrace:        v = "{"; break;
+      case token_type::rcbrace:        v = "}"; break;
+      case token_type::equal:          v = "="; break;
+      case token_type::plus_equal:     v = "+="; break;
+      case token_type::dollar:         v = "$"; break;
+      case token_type::lparen:         v = "("; break;
+      case token_type::rparen:         v = ")"; break;
+      case token_type::name:           v = t.value.c_str (); break;
+      }
+
+      // cerr << t.line () << ':' << t.column () << ':' << v << endl;
+
+      r.push_back (move (v));
+
+      if (t.type == token_type::eos)
+        break;
+    }
+  }
+  catch (const failed&)
+  {
+    r.push_back ("<lexer error>");
+  }
+  catch (const io_error&)
+  {
+    r.push_back ("<io error>");
+  }
+
+  return r;
+}
+
+ostream&
+operator<< (ostream& os, const tokens& ts)
+{
+  for (const string& t: ts)
+    os << '"' << t << '"' << ' ';
+
+  return os;
+}