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View of /branches/lamont/src/compiler/parser/keywords.sml

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Revision 2160 - (download) (annotate)
Tue Feb 19 13:27:00 2013 UTC (6 years, 8 months ago) by lamonts
File size: 2159 byte(s)
Major change to the implementation of spatial communication
(* keywords.sml
 * COPYRIGHT (c) 2010 The Diderot Project (http://diderot-language.cs.uchicago.edu)
 * All rights reserved.
 * Diderot keywords.

structure Keywords : sig

    val idToken : string -> DiderotTokens.token

  end = struct

    structure T = DiderotTokens

    val keywords = [
        ("active",      T.KW_active),
        ("and",         T.KW_and), 
	    ("bool",		T.KW_bool),
        ("dead",        T.KW_dead), 
	    ("die",		T.KW_die),
	    ("else",		T.KW_else),
	    ("false",		T.KW_false),
	    ("field",		T.KW_field),
        ("foreach",     T.KW_foreach),
	    ("identity",	T.KW_identity),
	    ("if",		T.KW_if),
	    ("image",		T.KW_image),
	    ("in",		T.KW_in),
	    ("inf",		T.FLOAT FloatLit.posInf),
	    ("initially",	T.KW_initially),
	    ("input",		T.KW_input),
	    ("int",		T.KW_int),
	    ("kernel",		T.KW_kernel),
	    ("load",		T.KW_load),
        ("max",         T.KW_max),
        ("min",         T.KW_min), 
	    ("nan",		T.FLOAT FloatLit.nan),
	    ("new",		T.KW_new),
        ("or",      T.KW_or),
	    ("output",		T.KW_output),
            ("print",           T.KW_print),
        ("product",     T.KW_product), 
	    ("real",		T.KW_real),
	    ("stabilize",	T.KW_stabilize),
        ("stable",      T.KW_stable),
	    ("strand",		T.KW_strand),
	    ("string",		T.KW_string),
        ("sum",         T.KW_sum), 
	    ("tensor",		T.KW_tensor),
	    ("true",		T.KW_true),
	    ("update",		T.KW_update),
	    ("vec2",		T.KW_vec2),
	    ("vec3",		T.KW_vec3),
	    ("vec4",		T.KW_vec4),
        ("xor",         T.KW_xor), 
	    ("zeros",		T.KW_zeros)

  (* create a keyword lookup table *)
      fun mkFind kws = let
	    val tbl = AtomTable.mkTable (17, Fail "keywords")
	    fun ins (id, tok) = AtomTable.insert tbl (Atom.atom id, tok)
	    val find = AtomTable.find tbl
	    fun idToken id = let
		  val id = Atom.atom id
		    case find id
		     of NONE => T.ID id
		      | SOME kw => kw
		    (* end case *)
	      List.app ins kws;
  (* return either a keyword token or an ID token *)
      val idToken = mkFind keywords


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