// file : libbuild2/test/script/lexer.test.cxx -*- C++ -*- // license : MIT; see accompanying LICENSE file #include <iostream> #include <libbuild2/types.hxx> #include <libbuild2/utility.hxx> #include <libbuild2/test/script/token.hxx> #include <libbuild2/test/script/lexer.hxx> #undef NDEBUG #include <cassert> using namespace std; namespace build2 { namespace test { namespace script { // Usage: argv[0] <lexer-mode> // int main (int argc, char* argv[]) { lexer_mode m; { assert (argc == 2); string s (argv[1]); if (s == "command-line") m = lexer_mode::command_line; else if (s == "first-token") m = lexer_mode::first_token; else if (s == "second-token") m = lexer_mode::second_token; else if (s == "variable-line") m = lexer_mode::variable_line; else if (s == "description-line") m = lexer_mode::description_line; else if (s == "variable") m = lexer_mode::variable; else assert (false); } try { cin.exceptions (istream::failbit | istream::badbit); // Some modes auto-expire so we need something underneath. // bool u (m != lexer_mode::command_line); path_name in ("<stdin>"); lexer l (cin, in, lexer_mode::command_line); if (u) 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 ()) { // Print each token on a separate line without quoting operators. // t.printer (cout, t, print_mode::normal); cout << endl; } } catch (const failed&) { return 1; } return 0; } } } } int main (int argc, char* argv[]) { return build2::test::script::main (argc, argv); }