implements #1588

compiler/pragmas.nim

@@ -448,6 +448,9 @@ proc semAsmOrEmit*(con: PContext, n: PNode, marker: char): PNode =
           addSon(result, newSymNode(e))
         else: 
           addSon(result, newStrNode(nkStrLit, sub))
+      else:
+        # an empty '``' produces a single '`'
+        addSon(result, newStrNode(nkStrLit, $marker))
       if c < 0: break 
       a = c + 1
   else: illFormedAst(n)

doc/nimc.txt

@@ -383,6 +383,9 @@ Example:
 
   embedsC()
 
+As can be seen from the example, to Nim symbols can be referred via backticks.
+Use two backticks to produce a single verbatim backtick.
+
 
 ImportCpp pragma
 ----------------

web/news.txt

@@ -49,6 +49,9 @@ News
       os.getEnv, os.existsEnv, os.dirExists, os.fileExists,
       system.writeFile
 
+  - Two backticks now produce a single backtick within an ``emit`` or ``asm``
+    statement.
+    
 
 2014-10-19 Nimrod version 0.9.6 released
 ========================================