Partial refactoring of the utils directory (#3404)

* initial work to clean WarpX Utils

* remove AMRCore from Ionization tables

* progress

* refactoring of a part of the utils directory

* fix bug

* fixed bug

* fixed bug

* remove debug line accidentally slipped into the code

* remove debug line accidentally slipped into the code

* remove debug line accidentally slipped into the code

* cleaning

* fixed bug

1 files changed, 51 insertions, 0 deletions

diff --git a/Source/Utils/Strings/StringUtils.cpp b/Source/Utils/Strings/StringUtils.cpp
new file mode 100644
index 000000000..f095794c9
--- /dev/null
+++ b/Source/Utils/Strings/StringUtils.cpp
@@ -0,0 +1,51 @@
+/* Copyright 2022 Andrew Myers, Luca Fedeli, Maxence Thevenet
+ * Revathi Jambunathan
+ *
+ * This file is part of WarpX.
+ *
+ * License: BSD-3-Clause-LBNL
+ */
+
+#include "StringUtils.H"
+
+#include <sstream>
+
+std::vector<std::string> automatic_text_wrap(
+    const std::string& text, const int max_line_length){
+
+    auto ss_text = std::stringstream{text};
+    auto wrapped_text_lines = std::vector<std::string>{};
+
+    std::string line;
+    while(std::getline(ss_text, line,'\n')){
+
+        auto ss_line = std::stringstream{line};
+        int counter = 0;
+        std::stringstream ss_line_out;
+        std::string word;
+
+        while (ss_line >> word){
+            const auto wlen = static_cast<int>(word.length());
+
+            if(counter == 0){
+                ss_line_out << word;
+                counter += wlen;
+            }
+            else{
+                if (counter + wlen < max_line_length){
+                    ss_line_out << " " << word;
+                    counter += (wlen+1);
+                }
+                else{
+                    wrapped_text_lines.push_back(ss_line_out.str());
+                    ss_line_out = std::stringstream{word};
+                    counter = wlen;
+                }
+            }
+        }
+
+        wrapped_text_lines.push_back(ss_line_out.str());
+    }
+
+    return wrapped_text_lines;
+}