Updating to support multiple method calls.

core/metaprogramming.nom

@@ -270,6 +270,9 @@ externally (%tree as lua expr) means:
         ..local tree_lua = compile(\%tree)
         if \%tree.type == 'Block' then
             tree_lua = LuaCode:from(\%tree.source, '(function()\\n    ', tree_lua, '\\nend)()')
+        elseif \%tree.type == 'MethodCall' and #\%tree > 2 then
+            compile_error_at(\%tree, "This must be a single value instead of "..(#\%tree - 1).." method calls.",
+                "Replace this with a single method call.")
         end
         return tree_lua"
 

ldt.lua

@@ -0,0 +1 @@
+/Users/bruce/Sandbox/lua/ldt/ldt.lua

nomsu.5.peg

@@ -122,7 +122,7 @@ inline_action (Action):
 inline_arg: inline_expression / inline_block
 inline_methodcall (MethodCall):
     (index_chain / noindex_inline_expression / "(" inline_block ")")
-    "|" inline_action
+    "|" inline_action (ws* ";" ws* inline_action)*
 
 action (Action):
     !section_division
@@ -132,7 +132,11 @@ linesplit: (ws* "\")? eol nl_nodent ".." ws*
 arg: expression / inline_block / indented_block
 methodcall (MethodCall):
     (index_chain / noindex_inline_expression / indented_expression / "(" inline_block ")" / indented_block)
-    linesplit? "|" linesplit? action
+    linesplit? "|"
+    ((ws* inline_action ws* ";")* ws* action
+     / eol nl_indent
+        (action eol) (nl_nodent action eol)* 
+        (%nl (ws* %nl)* nodent (comment / eol / unexpected_code))*)
 
 word: !number { operator_char+ / ident_char+ }
 

nomsu_compiler.lua

@@ -250,29 +250,32 @@ local compile = setmetatable({
       lua:add(")")
       return lua
     elseif "MethodCall" == _exp_0 then
-      local stub = tree[2].stub
       local lua = LuaCode:from(tree.source)
       local target_lua = compile(tree[1])
       local target_text = target_lua:text()
-      if target_text:match("^%(.*%)$") or target_text:match("^[_a-zA-Z][_a-zA-Z0-9.]*$") or tree[1].type == "IndexChain" then
+      if not (target_text:match("^%(.*%)$") or target_text:match("^[_a-zA-Z][_a-zA-Z0-9.]*$") or tree[1].type == "IndexChain") then
+        target_lua:parenthesize()
+      end
+      for i = 2, #tree do
+        if i > 2 then
+          lua:add("\n")
+        end
         lua:add(target_lua, ":")
-      else
+        lua:add((tree[i].stub):as_lua_id(), "(")
-        lua:add("(", target_lua, "):")
+        for argnum, arg in ipairs(tree[i]:get_args()) do
-      end
+          local arg_lua = compile(arg)
-      assert(tree[2].type == "Action")
+          if arg.type == "Block" then
-      lua:add((stub):as_lua_id(), "(")
+            arg_lua = LuaCode:from(arg.source, "(function()\n    ", arg_lua, "\nend)()")
-      for i, arg in ipairs(tree[2]:get_args()) do
+          end
-        local arg_lua = compile(arg)
+          if lua:trailing_line_len() + #arg_lua:text() > MAX_LINE then
-        if arg.type == "Block" then
+            lua:add(argnum > 1 and ",\n    " or "\n    ")
-          arg_lua = LuaCode:from(arg.source, "(function()\n    ", arg_lua, "\nend)()")
+          elseif argnum > 1 then
+            lua:add(", ")
+          end
+          lua:add(arg_lua)
         end
-        if i > 1 then
+        lua:add(")")
-          lua:add(",")
-        end
-        lua:add(lua:trailing_line_len() + #arg_lua:text() > MAX_LINE and "\n   " or " ")
-        lua:add(arg_lua)
       end
-      lua:add(")")
       return lua
     elseif "EscapedNomsu" == _exp_0 then
       local lua = LuaCode:from(tree.source, "SyntaxTree{")

nomsu_compiler.moon

@@ -185,28 +185,28 @@ compile = setmetatable({
                 return lua
 
             when "MethodCall"
-                stub = tree[2].stub
                 lua = LuaCode\from tree.source
                 target_lua = compile tree[1]
                 target_text = target_lua\text!
                 -- TODO: this parenthesizing is maybe overly conservative
-                if target_text\match("^%(.*%)$") or target_text\match("^[_a-zA-Z][_a-zA-Z0-9.]*$") or
+                if not (target_text\match("^%(.*%)$") or target_text\match("^[_a-zA-Z][_a-zA-Z0-9.]*$") or
-                    tree[1].type == "IndexChain"
+                    tree[1].type == "IndexChain")
-                    lua\add target_lua, ":"
+                    target_lua\parenthesize!
-                else
-                    lua\add "(", target_lua, "):"
 
-                -- TODO: de-duplicate this code
+                for i=2,#tree
-                assert tree[2].type == "Action"
+                    lua\add "\n" if i > 2
-                lua\add((stub)\as_lua_id!,"(")
+                    lua\add target_lua, ":"
-                for i, arg in ipairs tree[2]\get_args!
+                    lua\add((tree[i].stub)\as_lua_id!,"(")
-                    arg_lua = compile(arg)
+                    for argnum, arg in ipairs tree[i]\get_args!
-                    if arg.type == "Block"
+                        arg_lua = compile(arg)
-                        arg_lua = LuaCode\from(arg.source, "(function()\n    ", arg_lua, "\nend)()")
+                        if arg.type == "Block"
-                    lua\add "," if i > 1
+                            arg_lua = LuaCode\from(arg.source, "(function()\n    ", arg_lua, "\nend)()")
-                    lua\add(lua\trailing_line_len! + #arg_lua\text! > MAX_LINE and "\n   " or " ")
+                        if lua\trailing_line_len! + #arg_lua\text! > MAX_LINE
-                    lua\add arg_lua
+                            lua\add(argnum > 1 and ",\n    " or "\n    ")
-                lua\add ")"
+                        elseif argnum > 1
+                            lua\add ", "
+                        lua\add arg_lua
+                    lua\add ")"
                 return lua
 
             when "EscapedNomsu"

nomsu_decompiler.lua

@@ -85,7 +85,14 @@ tree_to_inline_nomsu = function(tree)
     end
     return nomsu
   elseif "MethodCall" == _exp_0 then
-    return NomsuCode:from(tree.source, tree_to_inline_nomsu(tree[1]), "|", tree_to_inline_nomsu(tree[2]))
+    local nomsu = NomsuCode:from(tree.source, tree_to_inline_nomsu(tree[1]), "|")
+    for i = 2, #tree do
+      if i > 2 then
+        nomsu:add("; ")
+      end
+      nomsu:add(tree_to_inline_nomsu(tree[i]))
+    end
+    return nomsu
   elseif "EscapedNomsu" == _exp_0 then
     local inner_nomsu = tree_to_inline_nomsu(tree[1])
     if not (tree[1].type == "List" or tree[1].type == "Dict" or tree[1].type == "Var") then
@@ -190,7 +197,7 @@ tree_to_inline_nomsu = function(tree)
     end
     return NomsuCode:from(tree.source, s)
   elseif "Var" == _exp_0 then
-    local varname = tree[1]:gsub("_", " ")
+    local varname = tree[1]
     if varname == "" or is_identifier(varname) then
       return NomsuCode:from(tree.source, "$", varname)
     else
@@ -340,7 +347,18 @@ tree_to_nomsu = function(tree)
     end
     nomsu:add(target_nomsu)
     nomsu:add(target_nomsu:is_multiline() and "\n..|" or "|")
-    nomsu:add(tree_to_nomsu(tree[2]))
+    local inner_nomsu = NomsuCode()
+    for i = 2, #tree do
+      if i > 2 then
+        inner_nomsu:add("\n")
+      end
+      inner_nomsu:add(tree_to_nomsu(tree[i]))
+    end
+    if #tree == 2 and nomsu:trailing_line_len() + #inner_nomsu:text():match("^[^\n]*") < MAX_LINE then
+      nomsu:add(inner_nomsu)
+    else
+      nomsu:add("\n    ", inner_nomsu)
+    end
     return nomsu
   elseif "EscapedNomsu" == _exp_0 then
     nomsu = recurse(tree[1])

nomsu_decompiler.moon

@@ -57,7 +57,11 @@ tree_to_inline_nomsu = (tree)->
             return nomsu
 
         when "MethodCall"
-            return NomsuCode\from(tree.source, tree_to_inline_nomsu(tree[1]), "|", tree_to_inline_nomsu(tree[2]))
+            nomsu = NomsuCode\from(tree.source, tree_to_inline_nomsu(tree[1]), "|")
+            for i=2,#tree
+                nomsu\add "; " if i > 2
+                nomsu\add tree_to_inline_nomsu(tree[i])
+            return nomsu
 
         when "EscapedNomsu"
             inner_nomsu = tree_to_inline_nomsu(tree[1])
@@ -139,8 +143,7 @@ tree_to_inline_nomsu = (tree)->
             return NomsuCode\from(tree.source, s)
 
         when "Var"
-            -- TODO: remove this hack:
+            varname = tree[1]
-            varname = tree[1]\gsub("_", " ")
             if varname == "" or is_identifier(varname)
                 return NomsuCode\from(tree.source, "$", varname)
             else
@@ -265,7 +268,14 @@ tree_to_nomsu = (tree)->
                 target_nomsu\parenthesize!
             nomsu\add target_nomsu
             nomsu\add(target_nomsu\is_multiline! and "\n..|" or "|")
-            nomsu\add tree_to_nomsu(tree[2])
+            inner_nomsu = NomsuCode!
+            for i=2,#tree
+                inner_nomsu\add "\n" if i > 2
+                inner_nomsu\add tree_to_nomsu(tree[i])
+            if #tree == 2 and nomsu\trailing_line_len! + #inner_nomsu\text!\match("^[^\n]*") < MAX_LINE
+                nomsu\add inner_nomsu
+            else
+                nomsu\add "\n    ", inner_nomsu
             return nomsu
 
         when "EscapedNomsu"