X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbinaryparser.cpp;h=73bb5cb664c32ba5ecda25ca9aa047c16e2610bd;hb=6f94aaece716a31e75166e261cc47579288892b4;hp=e8487223cf24d1290e07ed302774b3fb7ee00d28;hpb=3b0d6fb8462bf87956099365d02ebb28435509cd;p=libs%2Fdatafile.git

diff --git a/source/binaryparser.cpp b/source/binaryparser.cpp
index e848722..73bb5cb 100644
--- a/source/binaryparser.cpp
+++ b/source/binaryparser.cpp
@@ -1,4 +1,5 @@
 #include <sys/param.h>
+#include <msp/core/maputils.h>
 #include <msp/strings/format.h>
 #include "binaryparser.h"
 #include "input.h"
@@ -8,6 +9,17 @@ using namespace std;
 namespace Msp {
 namespace DataFile {
 
+class bad_definition: public runtime_error
+{
+public:
+	bad_definition(const std::string &w):
+		runtime_error(w)
+	{ }
+
+	virtual ~bad_definition() throw() { }
+};
+
+
 BinaryParser::BinaryParser(Input &i, const string &s):
 	ParserMode(i, s),
 	first(true)
@@ -24,7 +36,7 @@ Statement BinaryParser::parse()
 		if(st.keyword=="__kwd")
 		{
 			if(st.args.size()!=3)
-				throw_at(TypeError("Keyword definition must have three arguments"), src);
+				throw bad_definition("__kwd");
 
 			const unsigned id = st.args[0].get<unsigned>();
 			const string &kw = st.args[1].get<const string &>();
@@ -34,7 +46,7 @@ Statement BinaryParser::parse()
 		else if(st.keyword=="__str")
 		{
 			if(st.args.size()!=2)
-				throw_at(TypeError("String definition must have two arguments"), src);
+				throw bad_definition("__str");
 
 			const unsigned id = st.args[0].get<unsigned>();
 			strings[id] = st.args[1].get<const string &>();
@@ -54,10 +66,7 @@ Statement BinaryParser::parse_statement()
 	if(!in)
 		return Statement();
 
-	Dictionary::const_iterator i = dict.find(id);
-	if(i==dict.end())
-		throw_at(KeyError("Unknown statement ID", lexical_cast(id)), src);
-	const DictEntry &de = i->second;
+	const DictEntry &de = get_item(dict, id);
 
 	Statement result;
 	result.keyword = de.keyword;
@@ -80,7 +89,7 @@ Statement BinaryParser::parse_statement()
 			result.args.push_back(parse_bool());
 			break;
 		case SymbolType::signature:
-			result.args.push_back(Symbol(parse_enum()));
+			result.args.push_back(parse_symbol());
 			break;
 		}
 	}
@@ -152,20 +161,12 @@ string BinaryParser::parse_string()
 		return result;
 	}
 	else
-		return lookup_string(-len);
-}
-
-string BinaryParser::parse_enum()
-{
-	return lookup_string(parse_int());
+		return get_item(strings, -len);
 }
 
-const string &BinaryParser::lookup_string(unsigned id) const
+Symbol BinaryParser::parse_symbol()
 {
-	StringMap::const_iterator i = strings.find(id);
-	if(i==strings.end())
-		throw_at(KeyError("Unknown string", lexical_cast(id)), src);
-	return i->second;
+	return get_item(strings, parse_int());
 }
 
 } // namespace DataFile