Merge pull request 'develop' (#19) from develop into master

Reviewed-on: #19

.gitignore

@@ -3,3 +3,4 @@
 builddir
 *.kb
 *.obk
+!examples/*.obk

examples/multi-fact.obk

@@ -0,0 +1,2 @@
+# this is a comment
+fact("chris cromer" and "martin" and "Isabella" can "program" and "speak english");

examples/obelisk.obk

@@ -0,0 +1,19 @@
+// an incomplete rule, this one stays false
+rule("chris" is "happy" if "chris" plays "playstation");
+
+// a rule that gets inserted as true right away
+fact("this" is "madness");
+rule("this" is "sparta" if "this" is "madness");
+
+// a rule that is inserted as false then updated at a later stage
+rule("bruce" is "batman" if "the waynes" are "dead");
+fact("the waynes" are "dead");
+
+// an action that will be false because the fact doesn't exist, should return ignore
+action(if "tom" is "dangerous" then "avoid" else "ignore");
+
+// an action that will be true, should return die
+action(if "this" is "sparta" then "die" else "live");
+
+fact("what" is "love");
+rule("baby" dont "hurt me" if "what" is "love");

meson.build

@@ -1,7 +1,7 @@
 project('obelisk',
     'c',
     'cpp',
-    version : '1.0.0',
+    version : '1.0.1',
     license : 'BSD-3-Clause',
     default_options : [
         'warning_level=3',

src/lexer.cpp

@@ -56,10 +56,10 @@ int obelisk::Lexer::getToken()
 
         if (getIdentifier() == "extern")
         {
-            return kTokenExtern;
+            return Token::kTokenExtern;
         }
 
-        return kTokenIdentifier;
+        return Token::kTokenIdentifier;
     }
 
     if (isdigit(lastChar))

src/lexer.h

@@ -81,22 +81,26 @@ namespace obelisk
                  *
                  */
                 kTokenFact = -2,
+
                 /**
                  * @brief A rule which is a relationship between a new fact a
                  * existing fact.
                  *
                  */
                 kTokenRule = -3,
+
                 /**
                  * @brief An action to take if a fact is true.
                  *
                  */
                 kTokenAction = -4,
+
                 /**
                  * @brief A definition of a new function.
                  *
                  */
                 kTokenDef = -5,
+
                 /**
                  * @brief An external function that will be linked to.
                  *
@@ -108,11 +112,13 @@ namespace obelisk
                  *
                  */
                 kTokenIdentifier = -7,
+
                 /**
                  * @brief A double floating point value.
                  *
                  */
                 kTokenNumber = -8,
+
                 /**
                  * @brief A string.
                  *