From 691adcce8c2b23af4d0ed855ac7003bda0c8a171 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Sat, 26 Jun 2021 17:30:27 +0200
Subject: Cross platform escape of args

---
 src/Ninja.cpp | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/src/Ninja.cpp b/src/Ninja.cpp
index 09df2c1..3b3356b 100644
--- a/src/Ninja.cpp
+++ b/src/Ninja.cpp
@@ -3,6 +3,36 @@
 
 namespace ninja
 {
+#if defined(_WIN32) || defined(_WIN64)
+    static std::string escape_arg(const std::string &arg) {
+        std::string escaped = "\"";
+        for(char c : arg) {
+            if(c == '"') {
+                escaped += "\"\"";
+            } else {
+                escaped += c;
+            }
+        }
+        escaped += "\"";
+        return escaped;
+    }
+#else
+    static std::string escape_arg(const std::string &arg) {
+        std::string escaped = "\"";
+        for(char c : arg) {
+            if(c == '"') {
+                escaped += "\\\"";
+            } else if(c == '\\') {
+                escaped += "\\\\";
+            } else {
+                escaped += c;
+            }
+        }
+        escaped += "\"";
+        return escaped;
+    }
+#endif
+
     static std::string joinArgs(const std::vector<NinjaArg> &args)
     {
         std::string result;
@@ -19,7 +49,7 @@ namespace ninja
             {
                 case NinjaArg::Type::VALUE:
                 {
-                    result += '\"' + arg.arg + '\"';
+                    result += escape_arg(arg.arg);
                     break;
                 }
                 case NinjaArg::Type::VARIABLE:
-- 
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