From 44c7da77b76b1820a395b7017b128d3c907b5dbe Mon Sep 17 00:00:00 2001
From: Thomas Fischer <thomas.fischer@ufz.de>
Date: Thu, 30 Apr 2020 13:09:44 +0200
Subject: [PATCH] [BL] Impl. helper fct. template substituteKeyword.
---
BaseLib/FileTools.cpp | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/BaseLib/FileTools.cpp b/BaseLib/FileTools.cpp
index 51daf0cfd3f..f22ab184714 100644
--- a/BaseLib/FileTools.cpp
+++ b/BaseLib/FileTools.cpp
@@ -12,6 +12,9 @@
*
*/
+#include <unordered_map>
+#include <typeindex>
+
#include "FileTools.h"
#include "Error.h"
#include "filesystem.h"
@@ -70,6 +73,41 @@ std::string containsKeyword(std::string const& str, std::string const& keyword)
return "";
}
+template <typename T>
+bool substituteKeyword(std::string& result, std::string& parenthesized_string,
+ std::string::size_type begin, std::string::size_type end,
+ std::string const& keyword, T& data)
+{
+ std::string precision_specification =
+ containsKeyword(parenthesized_string, keyword);
+
+ if (precision_specification.empty())
+ {
+ return false;
+ }
+
+ std::unordered_map<std::type_index, char> type_specification;
+ type_specification[std::type_index(typeid(int))] = 'd';
+ type_specification[std::type_index(typeid(double))] = 'f'; // default
+ type_specification[std::type_index(typeid(std::string))] = 's';
+
+ auto const& b = precision_specification.back();
+ // see https://fmt.dev/latest/syntax.html#formatspec
+ if (b == 'e' || b == 'E' || b == 'f' || b == 'F' || b == 'g' || b == 'G')
+ {
+ type_specification[std::type_index(typeid(double))] = b;
+ precision_specification = precision_specification.substr(
+ 0, precision_specification.length() - 1);
+ }
+
+ std::string const generated_fmt_string =
+ "{" + precision_specification +
+ type_specification[std::type_index(typeid(data))] + "}";
+ result = result.substr(0, begin) + fmt::format(generated_fmt_string, data) +
+ result.substr(end + 1, result.length() - (end + 1));
+ return true;
+}
+
std::string constructFileName(std::string const& prefix,
int const process_id,
int const timestep,
--
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