aboutsummaryrefslogtreecommitdiff
path: root/libbuild2/lexer.test.cxx
diff options
context:
space:
mode:
authorBoris Kolpackov <boris@codesynthesis.com>2019-06-24 12:01:19 +0200
committerKaren Arutyunov <karen@codesynthesis.com>2019-07-01 18:13:55 +0300
commit977d07a3ae47ef204665d1eda2d642e5064724f3 (patch)
tree525a3d6421f61ce789b690191d3c30fc09be3517 /libbuild2/lexer.test.cxx
parent7161b24963dd9da4d218f92c736b77c35c328a2d (diff)
Split build system into library and driver
Diffstat (limited to 'libbuild2/lexer.test.cxx')
-rw-r--r--libbuild2/lexer.test.cxx98
1 files changed, 98 insertions, 0 deletions
diff --git a/libbuild2/lexer.test.cxx b/libbuild2/lexer.test.cxx
new file mode 100644
index 0000000..84520d1
--- /dev/null
+++ b/libbuild2/lexer.test.cxx
@@ -0,0 +1,98 @@
+// file : libbuild2/lexer.test.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
+// license : MIT; see accompanying LICENSE file
+
+#include <cassert>
+#include <iostream>
+
+#include <libbuild2/types.hxx>
+#include <libbuild2/utility.hxx>
+
+#include <libbuild2/token.hxx>
+#include <libbuild2/lexer.hxx>
+
+using namespace std;
+
+namespace build2
+{
+ // Usage: argv[0] [-q] [<lexer-mode>]
+ //
+ int
+ main (int argc, char* argv[])
+ {
+ bool quote (false);
+ lexer_mode m (lexer_mode::normal);
+
+ for (int i (1); i != argc; ++i)
+ {
+ string a (argv[i]);
+
+ if (a == "-q")
+ quote = true;
+ else
+ {
+ if (a == "normal") m = lexer_mode::normal;
+ else if (a == "variable") m = lexer_mode::variable;
+ else if (a == "value") m = lexer_mode::value;
+ else if (a == "attribute") m = lexer_mode::attribute;
+ else if (a == "eval") m = lexer_mode::eval;
+ else if (a == "buildspec") m = lexer_mode::buildspec;
+ else assert (false);
+ break;
+ }
+ }
+
+ try
+ {
+ cin.exceptions (istream::failbit | istream::badbit);
+
+ // Most alternative modes auto-expire so we need something underneath.
+ //
+ lexer l (cin, path ("stdin"));
+
+ if (m != lexer_mode::normal)
+ l.mode (m);
+
+ // No use printing eos since we will either get it or loop forever.
+ //
+ for (token t (l.next ()); t.type != token_type::eos; t = l.next ())
+ {
+ if (t.separated && t.type != token_type::newline)
+ cout << ' ';
+
+ // Print each token on a separate line without quoting operators.
+ //
+ t.printer (cout, t, false);
+
+ if (quote)
+ {
+ char q ('\0');
+ switch (t.qtype)
+ {
+ case quote_type::single: q = 'S'; break;
+ case quote_type::double_: q = 'D'; break;
+ case quote_type::mixed: q = 'M'; break;
+ case quote_type::unquoted: break;
+ }
+
+ if (q != '\0')
+ cout << " [" << q << (t.qcomp ? "/C" : "/P") << ']';
+ }
+
+ cout << endl;
+ }
+ }
+ catch (const failed&)
+ {
+ return 1;
+ }
+
+ return 0;
+ }
+}
+
+int
+main (int argc, char* argv[])
+{
+ return build2::main (argc, argv);
+}