Updated PrintParams to no longer print info text to files per tesseract-ocr#3943

Author: Balearica

src/ccutil/params.cpp

@@ -163,25 +163,44 @@ bool ParamUtils::GetParamAsString(const char *name, const ParamsVectors *member_
 
 void ParamUtils::PrintParams(FILE *fp, const ParamsVectors *member_params) {
   int num_iterations = (member_params == nullptr) ? 1 : 2;
+  // When printing to stdout info text is included.
+  // Info text is omitted when printing to a file (would result in an invalid config file).
+  bool print_info = (fp == stdout) ? true : false;
   std::ostringstream stream;
   stream.imbue(std::locale::classic());
   for (int v = 0; v < num_iterations; ++v) {
     const ParamsVectors *vec = (v == 0) ? GlobalParams() : member_params;
     for (auto int_param : vec->int_params) {
-      stream << int_param->name_str() << '\t' << (int32_t)(*int_param) << '\t'
-             << int_param->info_str() << '\n';
+      if (print_info) {
+        stream << int_param->name_str() << '\t' << (int32_t)(*int_param) << '\t'
+              << int_param->info_str() << '\n';
+      } else {
+        stream << int_param->name_str() << '\t' << (int32_t)(*int_param) << '\n';
+      }
     }
     for (auto bool_param : vec->bool_params) {
-      stream << bool_param->name_str() << '\t' << bool(*bool_param) << '\t'
-             << bool_param->info_str() << '\n';
+      if (print_info) {
+        stream << bool_param->name_str() << '\t' << bool(*bool_param) << '\t'
+              << bool_param->info_str() << '\n';
+      } else {
+        stream << bool_param->name_str() << '\t' << bool(*bool_param) << '\n';
+      }
     }
     for (auto string_param : vec->string_params) {
-      stream << string_param->name_str() << '\t' << string_param->c_str() << '\t'
-             << string_param->info_str() << '\n';
+      if (print_info) {
+        stream << string_param->name_str() << '\t' << string_param->c_str() << '\t'
+              << string_param->info_str() << '\n';
+      } else {
+        stream << string_param->name_str() << '\t' << string_param->c_str() << '\n';
+      }
     }
     for (auto double_param : vec->double_params) {
-      stream << double_param->name_str() << '\t' << (double)(*double_param) << '\t'
-             << double_param->info_str() << '\n';
+      if (print_info) {
+        stream << double_param->name_str() << '\t' << (double)(*double_param) << '\t'
+              << double_param->info_str() << '\n';
+      } else {
+        stream << double_param->name_str() << '\t' << (double)(*double_param) << '\n';
+      }
     }
   }
   fprintf(fp, "%s", stream.str().c_str());