ditto - fix get_content in singleexamplesfinder

doc/generic/pgf/extract.lua

@@ -12,6 +12,7 @@ local examplefinder = require "examplefinder"
 local exoptfinder = require "examplewithoptionfinder"
 local examplesfinder = require "examplesfinder"
 local examplescasfinder = require "examplescasfinder"
+local singleexamplesfinder = require "singleexamplesfinder"
 
 local DEBUG = false
 
@@ -64,5 +65,10 @@ for n = 1, #arg - 1 do
     utils.walk(arg[n], arg[#arg], examplescasfinder)
 end
 
+-- Extract code exmples from examples being assigned as a single string
+for n = 1, #arg - 1 do
+    utils.walk(arg[n], arg[#arg], singleexamplesfinder)
+end
+
 -- utils.walk("/Users/hchar/tmp/from", "/Users/hchar/tmp/mwe", exoptfinder)
 os.exit(0)

doc/generic/pgf/lib/singleexamplesfinder.lua

@@ -17,7 +17,7 @@ local loc = lpeg.locale()
 local u = require("utils")
 local SP = u.SP
 local str = require("stringmatcher")
-local C, Ct, P, V = lpeg.C, lpeg.Ct, lpeg.P, lpeg.V
+local Ct, P, V = lpeg.Ct, lpeg.P, lpeg.V
 
 local finder = {}
 
@@ -42,7 +42,7 @@ end
 
 function finder.get_content(s)
     assert(type(s) == "string")
-    return s
+    return u.get_string(s)
 end
 
 function finder.get_name()