diff --git a/library/compiler/generator/generator.factor b/library/compiler/generator/generator.factor
index 0f2aa9d500..6f625319b4 100644
--- a/library/compiler/generator/generator.factor
+++ b/library/compiler/generator/generator.factor
@@ -94,7 +94,7 @@ M: #if generate-node
         end-basic-block
         <label> dup %jump-t
     ] H{
-        { +input { { f "flag" } } }
+        { +input+ { { f "flag" } } }
     } with-template generate-if ;
 
 ! #call
@@ -141,8 +141,8 @@ M: #call-label generate-node
     #! Output the jump table insn and return a list of
     #! label/branch pairs.
     [ end-basic-block %dispatch ] H{
-        { +input { { f "n" } } }
-        { +scratch { { f "scratch" } } }
+        { +input+ { { f "n" } } }
+        { +scratch+ { { f "scratch" } } }
     } with-template
     node-children [ <label> dup %target 2array ] map ;
 
diff --git a/library/compiler/generator/templates.factor b/library/compiler/generator/templates.factor
index ad61509e7d..80a429ba3a 100644
--- a/library/compiler/generator/templates.factor
+++ b/library/compiler/generator/templates.factor
@@ -206,21 +206,21 @@ SYMBOL: phantom-r
 : phantom-append ( seq stack -- )
     over length over adjust-phantom swap nappend ;
 
-SYMBOL: +input
-SYMBOL: +output
-SYMBOL: +scratch
-SYMBOL: +clobber
+SYMBOL: +input+
+SYMBOL: +output+
+SYMBOL: +scratch+
+SYMBOL: +clobber+
 
 : fix-spec ( spec -- spec )
     H{
-        { +input { } }
-        { +output { } }
-        { +scratch { } }
-        { +clobber { } }
+        { +input+ { } }
+        { +output+ { } }
+        { +scratch+ { } }
+        { +clobber+ { } }
     } swap hash-union ;
 
 : output-vregs ( -- seq seq )
-    +output +clobber [ get [ get ] map ] 2apply ;
+    +output+ +clobber+ [ get [ get ] map ] 2apply ;
 
 : outputs-clash? ( -- ? )
     output-vregs append phantoms append
@@ -241,8 +241,8 @@ SYMBOL: +clobber
     [ second reg-spec>class eq? ] contains-with? ;
 
 : requests-class? ( class -- ? )
-    dup +input get (requests-class?) swap
-    +scratch get (requests-class?) or ;
+    dup +input+ get (requests-class?) swap
+    +scratch+ get (requests-class?) or ;
 
 : ?fp-scratch ( -- n )
     T{ float-regs f 8 } requests-class? 1 0 ? ;
@@ -253,11 +253,11 @@ SYMBOL: +clobber
     ] unless* ;
 
 : guess-vregs ( -- int# float# )
-    +input get { } additional-vregs ?fp-scratch +
-    +scratch get 0 <column> requested-vregs >r + r> ;
+    +input+ get { } additional-vregs ?fp-scratch +
+    +scratch+ get 0 <column> requested-vregs >r + r> ;
 
 : alloc-scratch ( -- )
-    +scratch get [ first2 >r spec>vreg r> set ] each ;
+    +scratch+ get [ first2 >r spec>vreg r> set ] each ;
 
 : template-inputs ( -- )
     ! Ensure we have enough to hold any new stack elements we
@@ -265,12 +265,12 @@ SYMBOL: +clobber
     guess-vregs ensure-vregs
     ! Split the template into available (fast) parts and those
     ! that require allocating registers and reading the stack
-    +input get match-template fast-input slow-input
+    +input+ get match-template fast-input slow-input
     ! Finally allocate scratch registers
     alloc-scratch ;
 
 : template-outputs ( -- )
-    +output get [ get ] map phantom-d get phantom-append ;
+    +output+ get [ get ] map phantom-d get phantom-append ;
 
 : with-template ( quot spec -- )
     fix-spec [ template-inputs call template-outputs ] bind
diff --git a/library/compiler/pentium4/intrinsics.factor b/library/compiler/pentium4/intrinsics.factor
index 9dc88aca35..311f48223d 100644
--- a/library/compiler/pentium4/intrinsics.factor
+++ b/library/compiler/pentium4/intrinsics.factor
@@ -44,8 +44,8 @@ M: float-regs (%replace)
 ! Floats
 : define-float-op ( word op -- )
     [ [ "x" operand "y" operand ] % , ] [ ] make H{
-        { +input { { float "x" } { float "y" } } }
-        { +output { "x" } }
+        { +input+ { { float "x" } { float "y" } } }
+        { +output+ { "x" } }
     } define-intrinsic ;
 
 {
@@ -61,7 +61,7 @@ M: float-regs (%replace)
     [
         [ end-basic-block "x" operand "y" operand UCOMISD ] % ,
     ] [ ] make H{
-        { +input { { float "x" } { float "y" } } }
+        { +input+ { { float "x" } { float "y" } } }
     } define-if-intrinsic ;
 
 {
diff --git a/library/compiler/ppc/intrinsics.factor b/library/compiler/ppc/intrinsics.factor
index 9fc56a06b9..21083d57f7 100644
--- a/library/compiler/ppc/intrinsics.factor
+++ b/library/compiler/ppc/intrinsics.factor
@@ -23,16 +23,16 @@ math-internals namespaces sequences words ;
     "obj" operand dup untag
     cell log2 [ 0 LWZ ] generate-slot
 ] H{
-    { +input { { f "obj" } { f "n" } } }
-    { +output { "obj" } }
+    { +input+ { { f "obj" } { f "n" } } }
+    { +output+ { "obj" } }
 } define-intrinsic
 
 \ char-slot [
     1 [ string-offset LHZ ] generate-slot
     "obj" operand dup tag-fixnum
 ] H{
-    { +input { { f "n" } { f "obj" } } }
-    { +output { "obj" } }
+    { +input+ { { f "n" } { f "obj" } } }
+    { +output+ { "obj" } }
 } define-intrinsic
 
 : generate-set-slot ( size quot -- )
@@ -56,9 +56,9 @@ math-internals namespaces sequences words ;
     "obj" operand dup untag
     cell log2 [ 0 STW ] generate-set-slot generate-write-barrier
 ] H{
-    { +input { { f "val" } { f "obj" } { f "slot" } } }
-    { +scratch { { f "x" } } }
-    { +clobber { "obj" "slot" } }
+    { +input+ { { f "val" } { f "obj" } { f "slot" } } }
+    { +scratch+ { { f "x" } } }
+    { +clobber+ { "obj" "slot" } }
 } define-intrinsic
 
 \ set-char-slot [
@@ -66,15 +66,15 @@ math-internals namespaces sequences words ;
     "val" operand dup untag-fixnum
     1 [ string-offset STH ] generate-set-slot
 ] H{
-    { +input { { f "val" } { f "slot" } { f "obj" } } }
-    { +scratch { { f "x" } } }
-    { +clobber { "val" "slot" "obj" } }
+    { +input+ { { f "val" } { f "slot" } { f "obj" } } }
+    { +scratch+ { { f "x" } } }
+    { +clobber+ { "val" "slot" "obj" } }
 } define-intrinsic
 
 : define-fixnum-op ( word op -- )
     [ [ "x" operand "y" operand "x" operand ] % , ] [ ] make H{
-        { +input { { f "x" } { f "y" } } }
-        { +output { "x" } }
+        { +input+ { { f "x" } { f "y" } } }
+        { +output+ { "x" } }
     } define-intrinsic ;
 
 {
@@ -98,23 +98,23 @@ math-internals namespaces sequences words ;
     "r" operand "x" operand "y" operand DIVW
     generate-fixnum-mod
 ] H{
-    { +input { { f "x" } { f "y" } } }
-    { +scratch { { f "r" } { f "s" } } }
-    { +output { "s" } }
+    { +input+ { { f "x" } { f "y" } } }
+    { +scratch+ { { f "r" } { f "s" } } }
+    { +output+ { "s" } }
 } define-intrinsic
 
 \ fixnum-bitnot [
     "x" operand dup NOT
     "x" operand dup untag
 ] H{
-    { +input { { f "x" } } }
-    { +output { "x" } }
+    { +input+ { { f "x" } } }
+    { +output+ { "x" } }
 } define-intrinsic
 
 : define-fixnum-jump ( word op -- )
     [
         [ end-basic-block "x" operand 0 "y" operand CMP ] % ,
-     ] [ ] make H{ { +input { { f "x" } { f "y" } } } }
+     ] [ ] make H{ { +input+ { { f "x" } { f "y" } } } }
     define-if-intrinsic ;
 
 {
@@ -144,10 +144,10 @@ math-internals namespaces sequences words ;
     "r" operand "y" operand "x" operand ADDO.
     \ ADD simple-overflow
 ] H{
-    { +input { { f "x" } { f "y" } } }
-    { +scratch { { f "r" } } }
-    { +output { "r" } }
-    { +clobber { "x" "y" } }
+    { +input+ { { f "x" } { f "y" } } }
+    { +scratch+ { { f "r" } } }
+    { +output+ { "r" } }
+    { +clobber+ { "x" "y" } }
 } define-intrinsic
 
 \ fixnum- [
@@ -156,10 +156,10 @@ math-internals namespaces sequences words ;
     "r" operand "y" operand "x" operand SUBFO.
     \ SUBF simple-overflow
 ] H{
-    { +input { { f "x" } { f "y" } } }
-    { +scratch { { f "r" } } }
-    { +output { "r" } }
-    { +clobber { "x" "y" } }
+    { +input+ { { f "x" } { f "y" } } }
+    { +scratch+ { { f "r" } } }
+    { +output+ { "r" } }
+    { +clobber+ { "x" "y" } }
 } define-intrinsic
 
 \ fixnum* [
@@ -181,10 +181,10 @@ math-internals namespaces sequences words ;
     "end" get resolve-label
     "s" operand 12 MR
 ] H{
-    { +input { { f "x" } { f "y" } } }
-    { +scratch { { f "r" } { f "s" } } }
-    { +output { "s" } }
-    { +clobber { "x" "y" } }
+    { +input+ { { f "x" } { f "y" } } }
+    { +scratch+ { { f "r" } { f "s" } } }
+    { +output+ { "s" } }
+    { +clobber+ { "x" "y" } }
 } define-intrinsic
 
 : generate-fixnum/i
@@ -213,10 +213,10 @@ math-internals namespaces sequences words ;
     "r" operand "x" operand tag-fixnum
     "end" get resolve-label
 ] H{
-    { +input { { f "x" } { f "y" } } }
-    { +scratch { { f "r" } { f "s" } } }
-    { +output { "x" } }
-    { +clobber { "y" } }
+    { +input+ { { f "x" } { f "y" } } }
+    { +scratch+ { { f "r" } { f "s" } } }
+    { +output+ { "x" } }
+    { +clobber+ { "y" } }
 } define-intrinsic
 
 \ fixnum/mod [
@@ -229,16 +229,16 @@ math-internals namespaces sequences words ;
     "r" operand "x" operand tag-fixnum
     "end" get resolve-label
 ] H{
-    { +input { { f "x" } { f "y" } } }
-    { +scratch { { f "r" } { f "s" } } }
-    { +output { "x" "s" } }
-    { +clobber { "y" } }
+    { +input+ { { f "x" } { f "y" } } }
+    { +scratch+ { { f "r" } { f "s" } } }
+    { +output+ { "x" "s" } }
+    { +clobber+ { "y" } }
 } define-intrinsic
 
 : define-float-op ( word op -- )
     [ [ "x" operand "x" operand "y" operand ] % , ] [ ] make H{
-        { +input { { float "x" } { float "y" } } }
-        { +output { "x" } }
+        { +input+ { { float "x" } { float "y" } } }
+        { +output+ { "x" } }
     } define-intrinsic ;
 
 {
@@ -253,7 +253,7 @@ math-internals namespaces sequences words ;
 : define-float-jump ( word op -- )
     [
         [ end-basic-block "x" operand 0 "y" operand FCMPU ] % ,
-     ] [ ] make H{ { +input { { float "x" } { float "y" } } } }
+     ] [ ] make H{ { +input+ { { float "x" } { float "y" } } } }
     define-if-intrinsic ;
 
 {
@@ -270,9 +270,9 @@ math-internals namespaces sequences words ;
     "in" operand "out" operand tag-mask ANDI
     "out" operand dup tag-fixnum
 ] H{
-    { +input { { f "in" } } }
-    { +scratch { { f "out" } } }
-    { +output { "out" } }
+    { +input+ { { f "in" } } }
+    { +scratch+ { { f "out" } } }
+    { +output+ { "out" } }
 } define-intrinsic
 
 \ type [
@@ -299,9 +299,9 @@ math-internals namespaces sequences words ;
     f type tag-bits shift "x" operand LI
     "end" get resolve-label
 ] H{
-    { +input { { f "obj" } } }
-    { +scratch { { f "x" } { f "y" } } }
-    { +output { "x" } }
+    { +input+ { { f "obj" } } }
+    { +scratch+ { { f "x" } { f "y" } } }
+    { +output+ { "x" } }
 } define-intrinsic
 
 : userenv ( reg -- )
@@ -314,10 +314,10 @@ math-internals namespaces sequences words ;
     "x" operand "n" operand "x" operand ADD
     "x" operand dup 0 LWZ
 ] H{
-    { +input { { f "n" } } }
-    { +scratch { { f "x" } } }
-    { +output { "x" } }
-    { +clobber { "n" } }
+    { +input+ { { f "n" } } }
+    { +scratch+ { { f "x" } } }
+    { +output+ { "x" } }
+    { +clobber+ { "n" } }
 } define-intrinsic
 
 \ setenv [
@@ -326,7 +326,7 @@ math-internals namespaces sequences words ;
     "x" operand "n" operand "x" operand ADD
     "val" operand "x" operand 0 STW
 ] H{
-    { +input { { f "val" } { f "n" } } }
-    { +scratch { { f "x" } } }
-    { +clobber { "n" } }
+    { +input+ { { f "val" } { f "n" } } }
+    { +scratch+ { { f "x" } } }
+    { +clobber+ { "n" } }
 } define-intrinsic
diff --git a/library/compiler/x86/intrinsics.factor b/library/compiler/x86/intrinsics.factor
index 0f7d054480..6db3bbaed5 100644
--- a/library/compiler/x86/intrinsics.factor
+++ b/library/compiler/x86/intrinsics.factor
@@ -9,8 +9,8 @@ IN: compiler
     "in" operand tag-mask AND
     "in" operand tag-bits SHL
 ] H{
-    { +input { { f "in" } } }
-    { +output { "in" } }
+    { +input+ { { f "in" } } }
+    { +output+ { "in" } }
 } define-intrinsic
 
 \ type [
@@ -44,9 +44,9 @@ IN: compiler
     "obj" operand f type tag-bits shift MOV
     "end" get resolve-label
 ] H{
-    { +input { { f "obj" } } }
-    { +scratch { { f "x" } { f "y" } } }
-    { +output { "obj" } }
+    { +input+ { { f "obj" } } }
+    { +scratch+ { { f "x" } { f "y" } } }
+    { +output+ { "obj" } }
 } define-intrinsic
 
 ! Slots
@@ -61,9 +61,9 @@ IN: compiler
     ! load slot value
     "obj" operand dup [] MOV
 ] H{
-    { +input { { f "obj" } { f "n" } } }
-    { +output { "obj" } }
-    { +clobber { "n" } }
+    { +input+ { { f "obj" } { f "n" } } }
+    { +output+ { "obj" } }
+    { +clobber+ { "n" } }
 } define-intrinsic
 
 : card-offset 1 getenv ; inline
@@ -84,8 +84,8 @@ IN: compiler
     "slot" operand [] "val" operand MOV
     generate-write-barrier
 ] H{
-    { +input { { f "val" } { f "obj" } { f "slot" } } }
-    { +clobber { "obj" "slot" } }
+    { +input+ { { f "val" } { f "obj" } { f "slot" } } }
+    { +clobber+ { "obj" "slot" } }
 } define-intrinsic
 
 : char-reg cell 8 = RBX EBX ? ; inline
@@ -101,9 +101,9 @@ IN: compiler
     "obj" operand char-reg MOV
     char-reg POP
 ] H{
-    { +input { { f "n" } { f "obj" } } }
-    { +output { "obj" } }
-    { +clobber { "n" } }
+    { +input+ { { f "n" } { f "obj" } } }
+    { +output+ { "obj" } }
+    { +clobber+ { "n" } }
 } define-intrinsic
 
 \ set-char-slot [
@@ -115,15 +115,15 @@ IN: compiler
     "obj" operand string-offset [+] char-reg-16 MOV
     char-reg POP
 ] H{
-    { +input { { f "val" } { f "slot" } { f "obj" } } }
-    { +clobber { "val" "slot" "obj" } }
+    { +input+ { { f "val" } { f "slot" } { f "obj" } } }
+    { +clobber+ { "val" "slot" "obj" } }
 } define-intrinsic
 
 ! Fixnums
 : define-fixnum-op ( word op -- )
     [ [ "x" operand "y" operand ] % , ] [ ] make H{
-        { +input { { f "x" } { f "y" } } }
-        { +output { "x" } }
+        { +input+ { { f "x" } { f "y" } } }
+        { +output+ { "x" } }
     } define-intrinsic ;
 
 {
@@ -140,8 +140,8 @@ IN: compiler
     "x" operand NOT
     "x" operand tag-mask XOR
 ] H{
-    { +input { { f "x" } } }
-    { +output { "x" } }
+    { +input+ { { f "x" } } }
+    { +output+ { "x" } }
 } define-intrinsic
 
 ! This has specific register requirements. Inputs are in
@@ -150,9 +150,9 @@ IN: compiler
     prepare-division
     "y" operand IDIV
 ] H{
-    { +input { { 0 "x" } { 1 "y" } } }
-    { +scratch { { 2 "out" } } }
-    { +output { "out" } }
+    { +input+ { { 0 "x" } { 1 "y" } } }
+    { +scratch+ { { 2 "out" } } }
+    { +output+ { "out" } }
 } define-intrinsic
 
 : ?MOV ( dst src -- ) 2dup = [ 2drop ] [ MOV ] if ;
@@ -179,10 +179,10 @@ IN: compiler
 
 : simple-overflow-template ( word insn -- )
     [ simple-overflow ] curry H{
-        { +input { { f "x" } { f "y" } } }
-        { +scratch { { f "z" } } }
-        { +output { "z" } }
-        { +clobber { "x" "y" } }
+        { +input+ { { f "x" } { f "y" } } }
+        { +scratch+ { { f "z" } } }
+        { +output+ { "z" } }
+        { +clobber+ { "x" "y" } }
     } define-intrinsic ;
 
 \ fixnum+ \ ADD simple-overflow-template
@@ -204,8 +204,8 @@ IN: compiler
     T{ int-regs } return-reg bignum-tag OR
     "end" get resolve-label
 ] H{
-    { +input { { 0 "x" } { 1 "y" } } }
-    { +output { "x" } }
+    { +input+ { { 0 "x" } { 1 "y" } } }
+    { +output+ { "x" } }
 } define-intrinsic
 
 : generate-fixnum/mod
@@ -238,22 +238,22 @@ IN: compiler
     "end" get resolve-label ;
 
 \ fixnum/i [ generate-fixnum/mod ] H{
-    { +input { { 0 "x" } { 1 "y" } } }
-    { +scratch { { 2 "out" } } }
-    { +output { "x" } }
-    { +clobber { "x" "y" } }
+    { +input+ { { 0 "x" } { 1 "y" } } }
+    { +scratch+ { { 2 "out" } } }
+    { +output+ { "x" } }
+    { +clobber+ { "x" "y" } }
 } define-intrinsic
 
 \ fixnum/mod [ generate-fixnum/mod ] H{
-    { +input { { 0 "x" } { 1 "y" } } }
-    { +scratch { { 2 "out" } } }
-    { +output { "x" "out" } }
-    { +clobber { "x" "y" } }
+    { +input+ { { 0 "x" } { 1 "y" } } }
+    { +scratch+ { { 2 "out" } } }
+    { +output+ { "x" "out" } }
+    { +clobber+ { "x" "y" } }
 } define-intrinsic
 
 : define-fixnum-jump ( word op -- )
     [ end-basic-block "x" operand "y" operand CMP ] swap add
-    H{ { +input { { f "x" } { f "y" } } } } define-if-intrinsic ;
+    H{ { +input+ { { f "x" } { f "y" } } } } define-if-intrinsic ;
 
 {
     { fixnum< JL }
@@ -275,15 +275,15 @@ IN: compiler
 \ getenv [
     %userenv  "n" operand dup [] MOV
 ] H{
-    { +input { { f "n" } } }
-    { +scratch { { f "x" } } }
-    { +output { "n" } }
+    { +input+ { { f "n" } } }
+    { +scratch+ { { f "x" } } }
+    { +output+ { "n" } }
 } define-intrinsic
 
 \ setenv [
     %userenv  "n" operand [] "val" operand MOV
 ] H{
-    { +input { { f "val" } { f "n" } } }
-    { +scratch { { f "x" } } }
-    { +clobber { "n" } }
+    { +input+ { { f "val" } { f "n" } } }
+    { +scratch+ { { f "x" } } }
+    { +clobber+ { "n" } }
 } define-intrinsic