add script to generate single header

include/ss/extract.hpp

@@ -17,6 +17,9 @@ namespace ss {
 // number converters
 ////////////////
 
+#define SSP_DISABLE_FAST_FLOAT
+#ifndef SSP_DISABLE_FAST_FLOAT
+
 template <typename T>
 std::enable_if_t<std::is_floating_point_v<T>, std::optional<T>> to_num(
     const char* const begin, const char* const end) {
@@ -29,6 +32,31 @@ std::enable_if_t<std::is_floating_point_v<T>, std::optional<T>> to_num(
     return ret;
 }
 
+#else
+
+template <typename T>
+std::enable_if_t<std::is_floating_point_v<T>, std::optional<T>> to_num(
+    const char* const begin, const char* const end) {
+    T ret;
+    try {
+        if constexpr (std::is_same_v<T, float>) {
+            ret = std::stof(std::string{begin, end});
+        }
+        if constexpr (std::is_same_v<T, double>) {
+            ret = std::stod(std::string{begin, end});
+        }
+        if constexpr (std::is_same_v<T, long double>) {
+            ret = std::stold(std::string{begin, end});
+        }
+    } catch (...) {
+        return std::nullopt;
+    }
+
+    return ret;
+}
+
+#endif
+
 inline std::optional<short> from_char(char c) {
     if (c >= '0' && c <= '9') {
         return c - '0';

script/single_header_generator.py

@@ -0,0 +1,34 @@
+#!/bin/python3
+
+headers_dir = 'include/ss/'
+headers = ['type_traits.hpp',
+           'function_traits.hpp',
+           'restrictions.hpp',
+           'common.hpp',
+           'setup.hpp',
+           'splitter.hpp',
+           'extract.hpp',
+           'converter.hpp',
+           'parser.hpp']
+
+combined_file = []
+includes = []
+
+for header in headers:
+    with open(headers_dir + header) as f:
+        for line in f.read().splitlines():
+            if '#include "' in line or '#include <fast_float' in line:
+                continue
+
+            if '#include <' in line:
+                includes.append(line)
+                continue
+
+            if '#pragma once' not in line:
+                combined_file.append(line)
+
+includes = sorted(set(includes))
+
+print('\n'.join(includes))
+print('#define SSP_DISABLE_FAST_FLOAT')
+print('\n'.join(combined_file))