wibble  1.1
parse.test.h
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1 // -*- C++ -*-
2 
3 #include <wibble/parse.h>
4 #include <wibble/test.h>
5 
6 using namespace wibble;
7 
8 
9 struct TestParse {
10  enum TokenId { Invalid, Number };
12 
13  struct IOStream {
14  std::istream &i;
15 
16  std::string remove() {
17  char block[1024];
18  i.read( block, 1023 );
19  block[i.gcount()] = 0;
20  return block;
21  }
22 
23  bool eof() {
24  return i.eof();
25  }
26 
27  IOStream( std::istream &i ) : i( i ) {}
28  };
29 
30  struct Lexer : wibble::Lexer< Token, IOStream >
31  {
33  this->skipWhitespace();
34  this->match( isdigit, isdigit, Number );
35  return this->decide();
36  }
37 
39  : wibble::Lexer< Token, IOStream >( s )
40  {}
41  };
42 
43  Test lexer() {
44  std::stringstream s;
45  IOStream is( s );
46  Token t;
47  Lexer l( is );
48 
49  s << "1 2";
50 
51  t = l.remove();
52  assert_eq( t.id, Number );
53  assert_eq( t.data, "1" );
54 
55  t = l.remove();
56  assert_eq( t.id, Number );
57  assert_eq( t.data, "2" );
58 
59  t = l.remove();
60  assert_eq( t.id, Invalid );
61  }
62 };
TestParse::IOStream::IOStream
IOStream(std::istream &i)
Definition: parse.test.h:27
TestParse::Lexer::Lexer
Lexer(IOStream &s)
Definition: parse.test.h:38
TestParse::Lexer::remove
Token remove()
Definition: parse.test.h:32
TestParse::IOStream::i
std::istream & i
Definition: parse.test.h:14
parse.h
wibble::Token::id
Id id
Definition: parse.h:31
TestParse::IOStream::remove
std::string remove()
Definition: parse.test.h:16
TestParse::Token
wibble::Token< TokenId > Token
Definition: parse.test.h:11
TestParse
Definition: parse.test.h:9
wibble::Token
Definition: parse.h:29
wibble::Lexer
Definition: parse.h:65
TestParse::IOStream
Definition: parse.test.h:13
wibble::Token::data
std::string data
Definition: parse.h:32
test.h
assert_eq
#define assert_eq(x, y)
Definition: test.h:33
TestParse::Lexer
Definition: parse.test.h:30
TestParse::IOStream::eof
bool eof()
Definition: parse.test.h:23
TestParse::TokenId
TokenId
Definition: parse.test.h:10
TestParse::lexer
Test lexer()
Definition: parse.test.h:43
wibble
Definition: amorph.h:17
Test
void Test
Definition: test.h:178