From b38b5e7974d9ba63ab1e5f257cfd0a4d7c463c0f Mon Sep 17 00:00:00 2001
From: Thomas Schmucker <ts@its1.de>
Date: Tue, 29 Sep 2020 20:10:05 +0200
Subject: Erste Version, die Daten extrahiert...

---
 src/srcut.cpp | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 81 insertions(+), 10 deletions(-)

(limited to 'src/srcut.cpp')

diff --git a/src/srcut.cpp b/src/srcut.cpp
index 194cc65..042608e 100644
--- a/src/srcut.cpp
+++ b/src/srcut.cpp
@@ -1,34 +1,105 @@
 #include <fstream>
 #include <iostream>
+#include <map>
+#include <sstream>
 #include <string>
+#include <vector>
 
 using namespace std;
 
-static void
-process(istream& in, ostream& os)
+istream&
+operator>>(istream& in, map<string, vector<string>>& container)
 {
-	auto match_begin = [](string_view s) -> bool {
-		return s.empty();
+	auto is_comment = [](string_view s) -> bool {
+		return s == "//" || s == "/*" || s == "#" || s == "--";
 	};
 
-	auto match_end = [](string_view s) -> bool {
-		return s.empty();
+	// --8<-- match_begin
+	auto match_begin = [&is_comment](const string& line, string& name) -> bool {
+		stringstream ss{ line };
+
+		string comment, cut_mark;
+
+		if ( !(ss >> comment >> cut_mark >> name) ) {
+			return false;
+		}
+
+		if ( !is_comment(comment) ) {
+			return false;
+		}
+
+		if ( cut_mark != "--8<--" ) {
+			return false;
+		}
+
+		return true;
+	};
+	// -->8--
+
+	// --8<-- match_end
+	auto match_end = [&is_comment](const string& line) -> bool {
+		stringstream ss{ line };
+
+		string comment, cut_mark;
+
+		if ( !(ss >> comment >> cut_mark) ) {
+			return false;
+		}
+
+		if ( !is_comment(comment) ) {
+			return false;
+		}
+
+		if ( cut_mark != "-->8--" ) {
+			return false;
+		}
+
+		return true;
 	};
+	// -->8--
 
+	vector<string> chunks;
 	for ( string line; getline(in, line); ) {
-		if ( match_begin(line) ) {
+		string marker;
+		if ( match_begin(line, marker) ) {
+			chunks.emplace_back(marker);
 		}
 		else if ( match_end(line) ) {
+			if ( !chunks.empty() ) {
+				chunks.pop_back();
+			}
 		}
 		else {
-			os << line << '\n';
+			for ( const auto& chunk: chunks ) {
+				container[chunk].emplace_back(line);
+			}
 		}
 	}
-	os << flush;
+
+	return in;
+}
+
+ostream&
+operator<<(ostream& os, const map<string, vector<string>>& container)
+{
+	for ( const auto& chunk: container ) {
+		os << "CHUNK: " << chunk.first << '\n';
+		auto line = begin(chunk.second);
+		while ( line != end(chunk.second) ) {
+			os << *line << '\n';
+
+			++line;
+		}
+		os << "-------\n\n";
+	}
+	return os;
 }
 
 int
 main(void)
 {
-	process(cin);
+	map<string, vector<string>> container;
+
+	cin >> container;
+	cout << container;
 }
-- 
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