From ac4e7fcb80bd09e8b38fcfdcc7e8cd09b7f0e448 Mon Sep 17 00:00:00 2001
From: Vincent La <vincela9@gmail.com>
Date: Sat, 27 Apr 2019 17:10:20 -0700
Subject: [PATCH] Fix pollution of csv namespace (#26)

Moved a lot of stuff users wouldn't really be interested in to the `csv::internals` namespace
---
 include/internal/compatibility.hpp |  2 --
 include/internal/constants.hpp     | 49 ++++++++++++++++--------------
 include/internal/csv_reader.cpp    |  4 +--
 include/internal/csv_reader.hpp    |  2 +-
 include/internal/csv_stat.cpp      |  2 +-
 single_header.py                   |  5 +--
 6 files changed, 31 insertions(+), 33 deletions(-)

diff --git a/include/internal/compatibility.hpp b/include/internal/compatibility.hpp
index e77b632a..4ff1cc05 100644
--- a/include/internal/compatibility.hpp
+++ b/include/internal/compatibility.hpp
@@ -4,8 +4,6 @@
 #define SUPPRESS_UNUSED_WARNING(x) (void)x
 
 namespace csv {
-    using namespace nonstd;
-
     #if __cplusplus >= 201703L
         #include <string_view>
         using string_view = std::string_view;
diff --git a/include/internal/constants.hpp b/include/internal/constants.hpp
index e1898d76..33a338d6 100644
--- a/include/internal/constants.hpp
+++ b/include/internal/constants.hpp
@@ -5,24 +5,32 @@
 #include "csv_row.hpp"
 
 namespace csv {
-    // Get operating system specific details
-    #if defined(_WIN32)
-        #include <Windows.h>
-        #undef max
-        #undef min
-        inline int getpagesize() {
-            _SYSTEM_INFO sys_info = {};
-            GetSystemInfo(&sys_info);
-            return sys_info.dwPageSize;
-        }
-
-        const int PAGE_SIZE = getpagesize();
-    #elif defined(__linux__) 
-        #include <unistd.h>
-        const int PAGE_SIZE = getpagesize();
-    #else
-        const int PAGE_SIZE = 4096;
-    #endif
+    namespace internals {
+        // Get operating system specific details
+        #if defined(_WIN32)
+            #include <Windows.h>
+            #undef max
+            #undef min
+
+            inline int getpagesize() {
+                _SYSTEM_INFO sys_info = {};
+                GetSystemInfo(&sys_info);
+                return sys_info.dwPageSize;
+            }
+
+            const int PAGE_SIZE = getpagesize();
+        #elif defined(__linux__) 
+            #include <unistd.h>
+            const int PAGE_SIZE = getpagesize();
+        #else
+            const int PAGE_SIZE = 4096;
+        #endif
+
+        /** @brief For functions that lazy load a large CSV, this determines how
+         *         many bytes are read at a time
+         */
+        const size_t ITERATION_CHUNK_SIZE = 10000000; // 10MB
+    }
 
     /** @brief Used for counting number of rows */
     using RowCount = long long int;
@@ -31,11 +39,6 @@ namespace csv {
 
     /** @name Global Constants */
     ///@{
-    /** @brief For functions that lazy load a large CSV, this determines how
-    *         many bytes are read at a time
-    */
-    const size_t ITERATION_CHUNK_SIZE = 10000000; // 10MB
-
     /** @brief A dummy variable used to indicate delimiter should be guessed */
     const CSVFormat GUESS_CSV = { '\0', '"', 0, {}, false, true };
 
diff --git a/include/internal/csv_reader.cpp b/include/internal/csv_reader.cpp
index 8f338cea..393de4d7 100644
--- a/include/internal/csv_reader.cpp
+++ b/include/internal/csv_reader.cpp
@@ -452,7 +452,7 @@ namespace csv {
         std::thread worker(&CSVReader::read_csv_worker, this);
 
         for (size_t processed = 0; processed < bytes; ) {
-            char * result = std::fgets(line_buffer, PAGE_SIZE, this->infile);
+            char * result = std::fgets(line_buffer, internals::PAGE_SIZE, this->infile);
             if (result == NULL) break;
             line_buffer += std::strlen(line_buffer);
 
@@ -506,7 +506,7 @@ namespace csv {
     bool CSVReader::read_row(CSVRow &row) {
         if (this->records.empty()) {
             if (!this->eof()) {
-                this->read_csv("", ITERATION_CHUNK_SIZE);
+                this->read_csv("", internals::ITERATION_CHUNK_SIZE);
             }
             else return false; // Stop reading
         }
diff --git a/include/internal/csv_reader.hpp b/include/internal/csv_reader.hpp
index c145e9c7..b93d2607 100644
--- a/include/internal/csv_reader.hpp
+++ b/include/internal/csv_reader.hpp
@@ -198,7 +198,7 @@ namespace csv {
         void feed(std::unique_ptr<char[]>&&); /**< @brief Helper for read_csv_worker() */
         void read_csv(
             const std::string& filename,
-            const size_t& bytes = ITERATION_CHUNK_SIZE
+            const size_t& bytes = internals::ITERATION_CHUNK_SIZE
         );
         void read_csv_worker();
         ///@}
diff --git a/include/internal/csv_stat.cpp b/include/internal/csv_stat.cpp
index f75592cc..d0036ba3 100644
--- a/include/internal/csv_stat.cpp
+++ b/include/internal/csv_stat.cpp
@@ -13,7 +13,7 @@ namespace csv {
          *  methods like get_mean(), get_counts(), etc... can be used to retrieve statistics.
          */
         while (!this->eof()) {
-            this->read_csv("", ITERATION_CHUNK_SIZE);
+            this->read_csv("", internals::ITERATION_CHUNK_SIZE);
             this->calc();
         }
 
diff --git a/single_header.py b/single_header.py
index aed1058d..c688fa1c 100644
--- a/single_header.py
+++ b/single_header.py
@@ -111,10 +111,7 @@ def get_dependencies(file: Path) -> dict:
 ''' Strip local include statements and #pragma once declarations from header files '''
 def file_strip(file: Path) -> str:
     new_file = ''
-    strip_these = [
-        '#include "(?P<file>.*)"',
-        '#pragma once'
-    ]
+    strip_these = [ '#include "(?P<file>.*)"', '#pragma once' ]
 
     with open(str(file), mode='r') as infile:
         for line in infile: