From 58b62eb3a8732be1740e8017cdba16a6db05b1d3 Mon Sep 17 00:00:00 2001
From: Timerix22 <timerix11@gmail.com>
Date: Sat, 23 Mar 2024 02:20:07 +0500
Subject: [PATCH] format()

---
 dependencies/kerep      |  2 +-
 src/UsefulException.cpp |  4 ---
 src/UsefulException.hpp |  4 ---
 src/format.cpp          | 66 +++++++++++++++++++++++++++++++++++++++++
 src/format.hpp          |  3 ++
 src/gui/fonts.cpp       |  2 +-
 src/gui/gui.hpp         |  1 +
 7 files changed, 72 insertions(+), 10 deletions(-)
 create mode 100644 src/format.cpp
 create mode 100644 src/format.hpp

diff --git a/dependencies/kerep b/dependencies/kerep
index dd5788f..0e370b3 160000
--- a/dependencies/kerep
+++ b/dependencies/kerep
@@ -1 +1 @@
-Subproject commit dd5788f72a909b602592da7861ba717d529be9f3
+Subproject commit 0e370b31ba98ec85720a4a5295b995348c247d3c
diff --git a/src/UsefulException.cpp b/src/UsefulException.cpp
index 2f66805..ac39ff9 100644
--- a/src/UsefulException.cpp
+++ b/src/UsefulException.cpp
@@ -1,8 +1,6 @@
 #include "UsefulException.hpp"
 #include <sstream>
 
-namespace GraphC {
-
 UsefulException_::UsefulException_(std::string _message, std::string _file, std::string _func, int _line_n)
     : message(_message), file(_file), function(_func), line_n(_line_n)
 {
@@ -15,5 +13,3 @@ UsefulException_::UsefulException_(std::string _message, std::string _file, std:
 char const* UsefulException_::what() const noexcept {
     return complete_text.c_str();
 }
-
-}
diff --git a/src/UsefulException.hpp b/src/UsefulException.hpp
index 76be2e2..25b4217 100644
--- a/src/UsefulException.hpp
+++ b/src/UsefulException.hpp
@@ -3,8 +3,6 @@
 #include <stdexcept>
 #include <string>
 
-namespace GraphC {
-
 #define UsefulException(MSG) UsefulException_(MSG, __FILE__, __func__, __LINE__)
 
 class UsefulException_ : public std::exception {
@@ -19,5 +17,3 @@ public:
 
     virtual char const* what() const noexcept;
 };
-
-}
diff --git a/src/format.cpp b/src/format.cpp
new file mode 100644
index 0000000..4e0f47d
--- /dev/null
+++ b/src/format.cpp
@@ -0,0 +1,66 @@
+#include <string>
+#include <sstream>
+#include <stdarg.h>
+#include "UsefulException.hpp"
+#include "../dependencies/kerep/src/base/base.h"
+
+std::string format(const std::string format_str, size_t args_count, ...){
+    va_list vl;
+    va_start(vl, args_count);
+    std::stringstream ss;
+    
+    for(size_t i = 0; i < format_str.length(); i++){
+        char c = format_str[i];
+
+        // format specifier
+        if(c == '%'){
+            c = format_str[++i];
+            bool l = false;
+            while(c == 'l'){
+                l = true;
+                c = format_str[++i];
+            }
+            
+            switch(c){
+                case 'u':
+                    if(l) ss<<(u64)va_arg(vl, u64);
+                    else ss<<(u32)va_arg(vl, u32);
+                    break;
+                case 'i':
+                case 'd':
+                    if(l) ss<<(i64)va_arg(vl, i64);
+                    else ss<<(i32)va_arg(vl, i32);
+                    break;
+                case 'f':
+                    // f32 is promoted to f64 when passed through '...'
+                    ss<<(f64)va_arg(vl, f64);
+                    break;
+                case 'p':
+                    ss<<(void*)va_arg(vl, void*);
+                    break;
+                case 'x':
+                    if(l) ss<<std::hex<<(u64)va_arg(vl, u64);
+                    else ss<<std::hex<<(u32)va_arg(vl, u32);
+                    break;
+                case 's': {
+                    const char* cptr = va_arg(vl,char*);
+                    if(cptr != nullptr)
+                        ss<<cptr;
+                    else ss<<"<nullptr>";
+                    break;
+                }
+                case 'c':
+                    ss<<(char)va_arg(vl,int);
+                    break;
+                default:
+                    throw UsefulException("invalid format cpecifier");
+            }
+        }
+
+        // regular character
+        else ss<<c;
+    }
+
+    va_end(vl);
+    return ss.str();
+}
diff --git a/src/format.hpp b/src/format.hpp
new file mode 100644
index 0000000..c6aa1b2
--- /dev/null
+++ b/src/format.hpp
@@ -0,0 +1,3 @@
+#include <string>
+
+std::string format(const std::string format_str, size_t args_count, ...);
diff --git a/src/gui/fonts.cpp b/src/gui/fonts.cpp
index 671fb00..862c9d4 100644
--- a/src/gui/fonts.cpp
+++ b/src/gui/fonts.cpp
@@ -12,7 +12,7 @@ ImFont* _ImFont_LoadEmbedded(const void* data, int data_size, const char* font_n
     ImGuiIO& io = ImGui::GetIO();
     font_size *= dpi;
     ImFontConfig font_cfg = ImFontConfig();
-    sprintf_s(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", font_name, font_size);
+    ksprintf(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", font_name, font_size);
     return io.Fonts->AddFontFromMemoryCompressedTTF(data, data_size, font_size, &font_cfg);
 }
 
diff --git a/src/gui/gui.hpp b/src/gui/gui.hpp
index 686a66f..9e1c4a2 100644
--- a/src/gui/gui.hpp
+++ b/src/gui/gui.hpp
@@ -4,6 +4,7 @@
 #include "../../dependencies/SDL2/include/SDL.h"
 #include "../../dependencies/SDL2/include/SDL_opengl.h"
 #include "../../dependencies/imgui/imgui.h"
+#include "../format.hpp"
 #include "NodeEditor.hpp"
 #include "imgui_extensions.hpp"
 #include "fonts.hpp"