3 files changed, 26 insertions, 20 deletions
diff --git a/metapost/context/base/mp-func.mpiv b/metapost/context/base/mp-func.mpiv
index 81b37fd1c..b1b9d6d5d 100644
--- a/metapost/context/base/mp-func.mpiv
+++ b/metapost/context/base/mp-func.mpiv
@@ -29,27 +29,30 @@ def pathconnectors = mfun_pathconnectors enddef ;
 
 vardef mfun_function (expr f) (expr u, t, b, e, s) =
     save x ; numeric x ;
+    save c ; string c ; c := if string f : f else : mfun_pathconnectors[f] fi ;
     for xx := b step s until e :
         hide (x := xx ;)
         if xx > b :
-          scantokens(mfun_pathconnectors[f])
+          scantokens(c)
         fi
         (scantokens(u),scantokens(t))
     endfor
 enddef ;
 
-def function         = mfun_function     enddef ; % let doesn't work here
-def straightfunction = mfun_function (1) enddef ;
-def curvedfunction   = mfun_function (2) enddef ;
+def function            = mfun_function     enddef ; % let doesn't work here
+def constructedfunction = mfun_function     enddef ;
+def straightfunction    = mfun_function (1) enddef ;
+def curvedfunction      = mfun_function (2) enddef ;
 
 % def punkedfunction   = mfun_function (1) enddef ; % same as straightfunction
 % def tightfunction    = mfun_function (3) enddef ; % same as curvedfunction
 
 vardef mfun_constructedpath (expr f) (text t) =
     save ok ; boolean ok ; ok := false ;
+    save c ; string c ; c := if string f : f else : mfun_pathconnectors[f] fi ;
     for i=t :
         if ok :
-            scantokens(mfun_pathconnectors[f])
+            scantokens(c)
         else :
             ok := true ;
         fi
@@ -61,15 +64,16 @@ def constructedpath = mfun_constructedpath     enddef ; % let doesn't work here
 def straightpath    = mfun_constructedpath (1) enddef ;
 def curvedpath      = mfun_constructedpath (2) enddef ;
 
-def punkedpath      = mfun_constructedpath (1) enddef ; % same as straightpath
-def tightpath       = mfun_constructedpath (3) enddef ; % same as curvedpath
+% def punkedpath      = mfun_constructedpath (1) enddef ; % same as straightpath
+% def tightpath       = mfun_constructedpath (3) enddef ; % same as curvedpath
 
 vardef mfun_constructedpairs (expr f) (text p) =
     save i ; i := -1 ;
+    save c ; string c ; c := if string f : f else : mfun_pathconnectors[f] fi ;
     forever :
         exitif unknown p[incr(i)] ;
         if i>0 :
-            scantokens(mfun_pathconnectors[f])
+            scantokens(c)
         fi
         p[i]
     endfor
@@ -79,5 +83,5 @@ def constructedpairs = mfun_constructedpairs     enddef ; % let doesn't work her
 def straightpairs    = mfun_constructedpairs (1) enddef ;
 def curvedpairs      = mfun_constructedpairs (2) enddef ;
 
-def punkedpairs      = mfun_constructedpairs (1) enddef ; % same as straightpairs
-def tightpairs       = mfun_constructedpairs (3) enddef ; % same as curvedpairs
+% def punkedpairs      = mfun_constructedpairs (1) enddef ; % same as straightpairs
+% def tightpairs       = mfun_constructedpairs (3) enddef ; % same as curvedpairs
diff --git a/metapost/context/base/mp-mlib.mpiv b/metapost/context/base/mp-mlib.mpiv
index a3eec2818..1140673ab 100644
--- a/metapost/context/base/mp-mlib.mpiv
+++ b/metapost/context/base/mp-mlib.mpiv
@@ -707,10 +707,10 @@ enddef ;
 
 % Positions
 
-def register (expr label, width, height, offset) =
+def register (expr tag, width, height, offset) =
 %     draw image (
         addto currentpicture doublepath unitsquare xscaled width yscaled height shifted offset
-            withprescript "ps_label=" & label ;
+            withprescript "ps_label=" & tag ;
 %     ) ; % no transformations
 enddef ;
 
@@ -799,7 +799,7 @@ primarydef t asgroup s = % s = isolated|knockout
     endgroup
 enddef ;
 
-% Also experimental
+% Also experimental ... needs to be made better ... so it can change!
 
 string mfun_auto_align[] ;
 
diff --git a/metapost/context/base/mp-tool.mpiv b/metapost/context/base/mp-tool.mpiv
index b82910f6b..dda8e84a1 100644
--- a/metapost/context/base/mp-tool.mpiv
+++ b/metapost/context/base/mp-tool.mpiv
@@ -57,13 +57,15 @@ mpprocset    := 1 ;
 %
 % protect ;
 
-string space  ; space  := char 32 ;
-string crlf   ; crlf   := char 10 & char 13 ;
-string dquote ; dquote := char 34 ;
-
-let SPACE  = space ;
-let CRLF   = crlf ;
-let DQUOTE = dquote ;
+string space   ; space   := char 32 ;
+string percent ; percent := char 37 ;
+string crlf    ; crlf    := char 10 & char 13 ;
+string dquote  ; dquote  := char 34 ;
+
+let SPACE   = space ;
+let CRLF    = crlf ;
+let DQUOTE  = dquote ;
+let PERCENT = percent ;
 
 vardef ddecimal primary p =
     decimal xpart p & " " & decimal ypart p