Publish a4

1 files changed, 42 insertions, 0 deletions

diff --git a/dev/a4-dance/simple_parser.h b/dev/a4-dance/simple_parser.h
new file mode 100644
index 0000000..b077b43
--- /dev/null
+++ b/dev/a4-dance/simple_parser.h
@@ -0,0 +1,42 @@
+#ifndef SIMPLE_PARSER_H_
+#define SIMPLE_PARSER_H_
+
+#include <fstream>
+#include <string>
+
+/** Helper class for parsing text input. */
+class SimpleParser {
+public:
+    SimpleParser(std::istream *i);
+
+    bool Expect(std::string s);
+
+    bool Peek(std::string s);
+
+    void SwallowWhitespace();
+
+    void SwallowLine();
+
+    bool ReadFloat(float &f);
+
+    bool ReadInt(int &i);
+
+    bool ReadToken(std::string &s);
+
+    bool Good();
+
+    bool ReadLine(std::string &line);
+
+    bool UpcomingInt();
+
+protected:
+    bool FloatChar(char c);
+
+    bool IntChar(char c);
+
+    bool TokenChar(char c);
+
+    std::istream *in_;
+};
+
+#endif