X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fparser.cpp;h=7e4d3dd7f93942b9d4c9c3b69f2715d93b25b492;hb=HEAD;hp=443c3c8c3d72a4d0951e076f260b6262d511c25f;hpb=d14b7ddd81404b909a4c4763a36a23b94998a089;p=libs%2Fdatafile.git

diff --git a/source/parser.cpp b/source/parser.cpp
index 443c3c8..e0ad854 100644
--- a/source/parser.cpp
+++ b/source/parser.cpp
@@ -1,6 +1,7 @@
 #include <msp/strings/format.h>
 #include "binaryparser.h"
-#include "dataerror.h"
+#include "except.h"
+#include "jsonparser.h"
 #include "parser.h"
 #include "statement.h"
 #include "textparser.h"
@@ -13,17 +14,21 @@ namespace DataFile {
 Parser::Parser(IO::Base &i, const string &s):
 	in(i),
 	main_src(s),
-	src(s),
-	good(true),
-	mode(new TextParser(in, src))
-{ }
+	src(s)
+{
+	char c = in.peek();
+	if(c=='{' || c=='[')
+		mode = new JsonParser(in, src);
+	else
+		mode = new TextParser(in, src);
+}
 
 Parser::~Parser()
 {
 	delete mode;
 }
 
-Statement Parser::parse()
+Statement Parser::parse(bool raw)
 {
 	if(!good)
 		throw logic_error("Parser::parse() !good");
@@ -33,26 +38,16 @@ Statement Parser::parse()
 		while(1)
 		{
 			Statement st = mode->parse();
-			if(st.keyword=="__bin")
-			{
-				delete mode;
-				mode = new BinaryParser(in, src);
-			}
-			else if(st.keyword=="__text")
+			if(!st.keyword.compare(0, 2, "__"))
 			{
-				delete mode;
-				mode = new TextParser(in, src);
+				st.control = true;
+				process_control_statement(st);
 			}
-			else if(st.keyword=="__src")
-			{
-				string s = st.args[0].get<string>();
-				if(s.empty())
-					src = main_src;
-				else
-					src = format("%s[%s]", main_src, s);
-			}
-			else
+
+			if(raw || !st.control)
 				return st;
+			else if(!good)  // This will occur with an __end statement
+				return Statement();
 		}
 	}
 	catch(const exception &e)
@@ -65,5 +60,57 @@ Statement Parser::parse()
 	}
 }
 
+void Parser::process_control_statement(const Statement &st)
+{
+	if(st.keyword=="__bin")
+	{
+		delete mode;
+		mode = new BinaryParser(in, src);
+
+		while(in.peek()=='\n')
+			in.get();
+	}
+	else if(st.keyword=="__text")
+	{
+		delete mode;
+		mode = new TextParser(in, src);
+	}
+	else if(st.keyword=="__z")
+		in.set_decompress();
+	else if(st.keyword=="__src")
+	{
+		string s = st.args[0].get<string>();
+		if(s.empty())
+			src = main_src;
+		else
+			src = format("%s[%s]", main_src, s);
+	}
+	else if(st.keyword=="__end")
+		good = false;
+	else
+		mode->process_control_statement(st);
+}
+
+const StatementKey *Parser::peek(unsigned level)
+{
+	while(good)
+	{
+		const StatementKey *key = mode->peek(level);
+		if(key && !key->keyword.compare(0, 2, "__"))
+			process_control_statement(mode->parse());
+		else
+			return key;
+	}
+
+	return nullptr;
+}
+
+bool Parser::parse_and_load(unsigned level, Loader &ldr, const LoaderAction &act)
+{
+	// Peek first to get any control statements processed
+	peek(level);
+	return mode->parse_and_load(level, ldr, act);
+}
+
 } // namespace DataFile
 } // namespace Msp