From e862bb76a2f4c9c293fe2638c7fb034de2af709c Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Wed, 3 Jan 2018 22:59:17 +0100
Subject: Add custom define option

---
 src/Conf.cpp | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

(limited to 'src/Conf.cpp')

diff --git a/src/Conf.cpp b/src/Conf.cpp
index 0bbbf7b..75fdd02 100644
--- a/src/Conf.cpp
+++ b/src/Conf.cpp
@@ -398,6 +398,24 @@ namespace sibs
         }
     }
     
+    bool isValidCIdentifier(const StringView &identifier)
+    {
+        if(identifier.size == 0)
+            return false;
+        
+        char c = identifier.data[0];
+        if(isalpha(c) || c == '_')
+        {
+            for(int i = 1; i < identifier.size; ++i)
+            {
+                c = identifier.data[i];
+                if(!isalnum(c) && c != '_')
+                    return false;
+            }
+        }
+        return true;
+    }
+    
     bool directoryToIgnore(const FileString &dir, const vector<string> &ignoreDirList)
     {
         string dirUtf8 = toUtf8(dir);
@@ -689,6 +707,22 @@ namespace sibs
             else
                 throw ParserException("Expected field under dependencies to be a single value, was a list");
         }
+        else if(currentObject.equals("define"))
+        {
+            if(value.isSingle())
+            {
+                if(!isValidCIdentifier(name))
+                {
+                    string errMsg = "Definition \"";
+                    errMsg.append(name.data, name.size);
+                    errMsg += "\" is not in a valid format. The first character have to match [a-zA-Z_] and the next characters have to match [a-zA-Z0-9_]";
+                    throw ParserException(errMsg);
+                }
+                defines[string(name.data, name.size)] = string(value.asSingle().data, value.asSingle().size);
+            }
+            else
+                throw ParserException("Expected field under define to be a single value, was a list");
+        }
         else if(currentObject.equals("cmake"))
         {
             parseCmake(name, value, cmakeDirGlobal, cmakeArgsGlobal);
-- 
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