From 7854d43eec2f301bf2191bceb732e282d2995487 Mon Sep 17 00:00:00 2001
From: Robert Adam <dev@robert-adam.de>
Date: Mon, 12 Feb 2024 09:25:55 +0100
Subject: [PATCH] Format TN creator source code

---
 .../tensor_network_graphs.cpp                 | 123 +++++++++---------
 1 file changed, 64 insertions(+), 59 deletions(-)

diff --git a/examples/tensor_network_graphs/tensor_network_graphs.cpp b/examples/tensor_network_graphs/tensor_network_graphs.cpp
index a6cd73e1a..c3f977c8f 100644
--- a/examples/tensor_network_graphs/tensor_network_graphs.cpp
+++ b/examples/tensor_network_graphs/tensor_network_graphs.cpp
@@ -1,88 +1,93 @@
-#include <SeQuant/core/runtime.hpp>
 #include <SeQuant/core/bliss.hpp>
 #include <SeQuant/core/parse_expr.hpp>
+#include <SeQuant/core/runtime.hpp>
 #include <SeQuant/core/tensor_network.hpp>
 #include <SeQuant/domain/mbpt/convention.hpp>
 
-#include <string>
 #include <cassert>
 #include <codecvt>
-#include <locale>
 #include <iostream>
+#include <locale>
 #include <optional>
+#include <string>
 
-	using namespace sequant;
+using namespace sequant;
 
 std::wstring from_utf8(std::string_view str) {
-	std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
-	return converter.from_bytes(std::string(str));
+  std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
+  return converter.from_bytes(std::string(str));
 }
 
 std::optional<TensorNetwork> to_network(const ExprPtr &expr) {
-	if (expr.is<Tensor>()) {
-		return TensorNetwork({expr});
-	} else if (expr.is<Product>()) {
-		for (const ExprPtr &factor : expr.as<Product>().factors()) {
-			if (!factor.is<Tensor>()) {
-				return {};
-			}
-		}
+  if (expr.is<Tensor>()) {
+    return TensorNetwork({expr});
+  } else if (expr.is<Product>()) {
+    for (const ExprPtr &factor : expr.as<Product>().factors()) {
+      if (!factor.is<Tensor>()) {
+        return {};
+      }
+    }
 
-		return TensorNetwork(expr.as<Product>().factors());
-	} else {
-		return {};
-	}
+    return TensorNetwork(expr.as<Product>().factors());
+  } else {
+    return {};
+  }
 }
 
 void print_help() {
-	std::wcout << "Helper to generate dot (GraphViz) representations of tensor network graphs.\n";
-	std::wcout << "Usage:\n";
-	std::wcout << "  <exe> [options] <network 1> [<network 2> [... [<network N>] ] ]\n";
-	std::wcout << "Options:\n";
-	std::wcout << "  --help     Shows this help message\n";
-	std::wcout << "  --no-named Treat all indices as unnamed (even if they are external)\n";
+  std::wcout << "Helper to generate dot (GraphViz) representations of tensor "
+                "network graphs.\n";
+  std::wcout << "Usage:\n";
+  std::wcout
+      << "  <exe> [options] <network 1> [<network 2> [... [<network N>] ] ]\n";
+  std::wcout << "Options:\n";
+  std::wcout << "  --help     Shows this help message\n";
+  std::wcout << "  --no-named Treat all indices as unnamed (even if they are "
+                "external)\n";
 }
 
 int main(int argc, char **argv) {
+  set_locale();
+  mbpt::set_default_convention();
 
-	set_locale();
-	mbpt::set_default_convention();
-
-	bool use_named_indices = true;
-	const TensorNetwork::named_indices_t empty_named_indices;
+  bool use_named_indices = true;
+  const TensorNetwork::named_indices_t empty_named_indices;
 
-	if (argc <= 1) {
-		print_help();
-		return 1;
-	}
+  if (argc <= 1) {
+    print_help();
+    return 1;
+  }
 
-	for (std::size_t i = 1; i < static_cast<std::size_t>(argc); ++i) {
-		std::wstring current = from_utf8(argv[i]);
-		if (current == L"--help") {
-			print_help();
-			return 0;
-		} else if (current == L"--no-named") {
-			use_named_indices = false;
-			continue;
-		}
+  for (std::size_t i = 1; i < static_cast<std::size_t>(argc); ++i) {
+    std::wstring current = from_utf8(argv[i]);
+    if (current == L"--help") {
+      print_help();
+      return 0;
+    } else if (current == L"--no-named") {
+      use_named_indices = false;
+      continue;
+    }
 
-		ExprPtr expr;
-		try {
-			expr = parse_expr(current);
-		} catch (const ParseError &e) {
-			std::wcout << "Failed to parse expression '" << current << "': " << e.what() << std::endl;
-			return 1;
-		}
-		assert(expr);
+    ExprPtr expr;
+    try {
+      expr = parse_expr(current);
+    } catch (const ParseError &e) {
+      std::wcout << "Failed to parse expression '" << current
+                 << "': " << e.what() << std::endl;
+      return 1;
+    }
+    assert(expr);
 
-		std::optional<TensorNetwork> network = to_network(expr);
-		if (!network.has_value()) {
-			std::wcout << "Failed to construct tensor network for input '" << current << "'" << std::endl;
-			return 2;
-		}
+    std::optional<TensorNetwork> network = to_network(expr);
+    if (!network.has_value()) {
+      std::wcout << "Failed to construct tensor network for input '" << current
+                 << "'" << std::endl;
+      return 2;
+    }
 
-		TensorNetwork::Graph graph = network->create_graph(use_named_indices ? nullptr : &empty_named_indices);
-		std::wcout << "Graph for '" << current << "'\n";
-		graph.bliss_graph->write_dot(std::wcout, graph.vertex_labels);
-	}
+    TensorNetwork::Graph graph = network->create_graph(
+        use_named_indices ? nullptr : &empty_named_indices);
+    std::wcout << "Graph for '" << current << "'\n";
+    graph.bliss_graph->write_dot(std::wcout, graph.vertex_labels);
+  }
 }