Cleaned up patterns a little.

nomsu.lua

@@ -123,7 +123,6 @@ LINE_STARTS = setmetatable({ }, {
     return line_starts
   end
 })
-local LUA_METADATA = { }
 do
   local STRING_METATABLE = getmetatable("")
   STRING_METATABLE.__add = function(self, other)
@@ -148,10 +147,6 @@ do
   _with_0.nl = P("\r") ^ -1 * P("\n")
   _with_0.ws = S(" \t")
   _with_0.tonumber = tonumber
-  _with_0.print = function(src, pos, msg)
-    print(msg, pos, repr(src:sub(math.max(0, pos - 16), math.max(0, pos - 1)) .. "|" .. src:sub(pos, pos + 16)))
-    return true
-  end
   local string_escapes = {
     n = "\n",
     t = "\t",
@@ -170,7 +165,6 @@ do
   end)
   _with_0.escaped_char = _with_0.escaped_char + ((P("\\") * C(S("ntbavfr"))) / string_escapes)
   _with_0.operator_char = S("'~`!@$^&*-+=|<>?/")
-  _with_0.operator = _with_0.operator_char ^ 1
   _with_0.utf8_char = (R("\194\223") * R("\128\191") + R("\224\239") * R("\128\191") * R("\128\191") + R("\240\244") * R("\128\191") * R("\128\191") * R("\128\191"))
   _with_0.ident_char = R("az", "AZ", "09") + P("_") + _with_0.utf8_char
   _with_0.indent = Cmt(Carg(1), function(self, start, userdata)
@@ -251,7 +245,7 @@ end
 local NomsuCompiler
 do
   local _class_0
-  local stub_defs, stub_pattern, var_pattern, _nomsu_chunk_counter, _running_files, MAX_LINE, math_expression
+  local stub_pattern, var_pattern, _nomsu_chunk_counter, _running_files, MAX_LINE, math_expression
   local _base_0 = {
     define_action = function(self, signature, fn, is_compile_action)
       if is_compile_action == nil then
@@ -1351,14 +1345,16 @@ do
   })
   _base_0.__class = _class_0
   local self = _class_0
-  stub_defs = {
+  local stub_defs
-    space = (P(' ') + P('\n..')) ^ 0,
+  do
-    word = (NOMSU_DEFS.ident_char ^ 1 + NOMSU_DEFS.operator),
+    stub_defs = {
-    varname = (R('az', 'AZ', '09') + P('_') + NOMSU_DEFS.utf8_char + (-P("'") * NOMSU_DEFS.operator)) ^ 0
+      word = (-R("09") * NOMSU_DEFS.ident_char ^ 1) + NOMSU_DEFS.operator_char ^ 1,
-  }
+      varname = (NOMSU_DEFS.ident_char ^ 1 * ((-P("'") * NOMSU_DEFS.operator_char ^ 1) + NOMSU_DEFS.ident_char ^ 1) ^ 0) ^ -1
-  stub_pattern = re.compile([=[        {~ (%space->'') (('%' (%varname->'')) / %word)? ((%space->' ') (('%' (%varname->'')) / %word))* (%space->'') ~}
+    }
+  end
+  stub_pattern = re.compile([=[        {~ ([ ]*->'') (('%' (%varname->'')) / %word)? (([ ]*->' ') (('%' (%varname->'')) / %word))* ([ ]*->'') ~}
     ]=], stub_defs)
-  var_pattern = re.compile("{| %space ((('%' {%varname}) / %word) %space)+ |}", stub_defs)
+  var_pattern = re.compile("{| [ ]* ((('%' {%varname}) / %word) [ ]*)+ |}", stub_defs)
   _nomsu_chunk_counter = 0
   _running_files = { }
   MAX_LINE = 80

nomsu.moon

@@ -109,11 +109,6 @@ LINE_STARTS = setmetatable {}, {
         return line_starts
 }
 
--- Map from unique nomsu chunkname to:
---   lua_to_nomsu, nomsu_to_lua, lua_sources, nomsu_sources,
---   nomsu_filename, nomsu_file, lua_filename, lua_file
-LUA_METADATA = {}
-
 -- Use + operator for string coercive concatenation (note: "asdf" + 3 == "asdf3")
 -- Use [] for accessing string characters, or s[{3,4}] for s:sub(3,4)
 -- Note: This globally affects all strings in this instance of Lua!
@@ -133,16 +128,12 @@ NOMSU_DEFS = with {}
     .nl = P("\r")^-1 * P("\n")
     .ws = S(" \t")
     .tonumber = tonumber
-    .print = (src,pos,msg)->
-        print(msg, pos, repr(src\sub(math.max(0,pos-16),math.max(0,pos-1)).."|"..src\sub(pos,pos+16)))
-        return true
     string_escapes = n:"\n", t:"\t", b:"\b", a:"\a", v:"\v", f:"\f", r:"\r"
     digit, hex = R('09'), R('09','af','AF')
     .escaped_char = (P("\\")*S("xX")*C(hex*hex)) / => string.char(tonumber(@, 16))
     .escaped_char += (P("\\")*C(digit*(digit^-2))) / => string.char(tonumber @)
     .escaped_char += (P("\\")*C(S("ntbavfr"))) / string_escapes
     .operator_char = S("'~`!@$^&*-+=|<>?/")
-    .operator = .operator_char^1
     .utf8_char = (
         R("\194\223")*R("\128\191") +
         R("\224\239")*R("\128\191")*R("\128\191") +
@@ -285,15 +276,16 @@ class NomsuCompiler
         @environment.Types = Types
         @initialize_core!
     
-    stub_defs = {
+    local stub_defs
-        space:(P(' ') + P('\n..'))^0
+    with NOMSU_DEFS
-        word:(NOMSU_DEFS.ident_char^1 + NOMSU_DEFS.operator)
+        stub_defs = {
-        varname:(R('az','AZ','09') + P('_') + NOMSU_DEFS.utf8_char + (-P("'") * NOMSU_DEFS.operator))^0
+            word: (-R("09") * .ident_char^1) + .operator_char^1
-    }
+            varname: (.ident_char^1 * ((-P("'") * .operator_char^1) + .ident_char^1)^0)^-1
+        }
     stub_pattern = re.compile [=[
-        {~ (%space->'') (('%' (%varname->'')) / %word)? ((%space->' ') (('%' (%varname->'')) / %word))* (%space->'') ~}
+        {~ ([ ]*->'') (('%' (%varname->'')) / %word)? (([ ]*->' ') (('%' (%varname->'')) / %word))* ([ ]*->'') ~}
     ]=], stub_defs
-    var_pattern = re.compile "{| %space ((('%' {%varname}) / %word) %space)+ |}", stub_defs
+    var_pattern = re.compile "{| [ ]* ((('%' {%varname}) / %word) [ ]*)+ |}", stub_defs
     define_action: (signature, fn, is_compile_action=false)=>
         if type(fn) != 'function'
             error("Not a function: #{repr fn}")

nomsu.peg

@@ -52,9 +52,9 @@ inline_action (Action):
 action (Action):
     {| (expression (dotdot? %ws*))* word ((dotdot? %ws*) (expression / word))* |}
 
-word: { %operator / (!number plain_word) }
+word: { %operator_char+ / (!number %ident_char+) }
 
-text_word (Text): {| {%operator / (!number plain_word)} |}
+text_word (Text): {| word |}
 
 inline_text (Text):
     !('".."' eol)
@@ -90,7 +90,7 @@ number (Number): (("-"? (([0-9]+ "." [0-9]+) / ("." [0-9]+) / ([0-9]+)))-> tonum
 
 -- Variables can be nameless (i.e. just %) and can't contain operators like apostrophe
 -- which is a hack to allow %'s to parse as "%" and "' s" separately
-variable (Var): "%" { (plain_word ((!"'" %operator) / plain_word)*)? }
+variable (Var): "%" { (%ident_char+ ((!"'" %operator_char+) / %ident_char+)*)? }
 
 inline_list (List):
     !('[..]')
@@ -135,4 +135,3 @@ dedent: eol (%nl ignored_line)* (((!.) %dedent) / (&(%nl %dedent)))
 non_dedent_error: (!dedent .)* eol (%nl ignored_line)* (!. / &%nl)
 comma: %ws* "," %ws*
 dotdot: nodent ".."
-plain_word: ([a-zA-Z0-9_-] / %utf8_char)+