Implement LOGO syntax

logoPlayer/galgas-sources/logoPlayer-lexique.galgas

@@ -11,7 +11,7 @@ $identifier$ ! tokenString error message "an identifier"
 #--- This is the keyword list
 list keyWordList style keywordsStyle error message "the '%K' keyword" {
     "PROGRAM",
-    "ROUTIN",
+    "ROUTINE",
     "BEGIN",
     "END",
     "FORWARD",

logoPlayer/galgas-sources/logoPlayer-program.galgas

@@ -3,8 +3,8 @@ before {
 }
 
 #--- 'when' clauses
-case . "logoPlayer"
-message "a source text file with the .logoPlayer extension"
+case . "logo"
+message "a source text file with the .logo extension"
 grammar logoPlayer_grammar
 ?sourceFilePath:@lstring inSourceFile {
   grammar logoPlayer_grammar in inSourceFile

logoPlayer/galgas-sources/logoPlayer-syntax.galgas

@@ -1,9 +1,70 @@
 syntax logoPlayer_syntax (logoPlayer_lexique) {
 
-rule <start_symbol> {
-  # ADD YOUR SYNTAX INSTRUCTIONS
-}
+  rule <start_symbol> {
+    # Routine definition
+    $PROGRAM$
+    <routines>
+
+    $BEGIN$
+    <instructions>
+    $END$
+    $.$
+  }
+
+  rule <routines> {
+    repeat
+    while
+      <routine>
+    end
+  }
+
+  rule <routine> {
+    $ROUTINE$
+    $identifier$ ?*
+    $BEGIN$
+    <instructions>
+    $END$
+  } 
+
+  rule <instructions> {
+    repeat
+    while
+      <instruction>
+    end
+  }
+
+  rule <instruction> {
+    select
+      <move>
+    or
+      <set_pen>
+    or
+      <call_routine>
+    end
+    $;$
+  }
+
+  rule <move> {
+    select
+      $FORWARD$
+    or
+      $ROTATE$
+    end
+    $integer$ ?*
+  }
 
-# ADD OTHER RULES
+  rule <set_pen> {
+    $PEN$
+    select
+      $UP$
+    or
+      $DOWN$
+    end
+  }
 
+  rule <call_routine> {
+    $CALL$
+    $identifier$ ?*
+  }
+    
 }