diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs
index 693fc4df5d02..083f67947e9d 100644
--- a/src/libsyntax/ast.rs
+++ b/src/libsyntax/ast.rs
@@ -1,7 +1,7 @@
 // The Rust abstract syntax tree.
 
-import codemap::{span, filename};
-import std::serialization::{serializer,
+use codemap::{span, filename};
+use std::serialization::{serializer,
                             deserializer,
                             serialize_Option,
                             deserialize_Option,
@@ -17,7 +17,7 @@ import std::serialization::{serializer,
                             deserialize_str,
                             serialize_bool,
                             deserialize_bool};
-import parse::token;
+use parse::token;
 
 /* Note #1972 -- spans are serialized but not deserialized */
 fn serialize_span<S>(_s: S, _v: span) {
diff --git a/src/libsyntax/ast_map.rs b/src/libsyntax/ast_map.rs
index e377707ece79..5245494449a3 100644
--- a/src/libsyntax/ast_map.rs
+++ b/src/libsyntax/ast_map.rs
@@ -1,10 +1,10 @@
-import std::map;
-import std::map::hashmap;
-import ast::*;
-import print::pprust;
-import ast_util::{path_to_ident, stmt_id};
-import diagnostic::span_handler;
-import parse::token::ident_interner;
+use std::map;
+use std::map::hashmap;
+use ast::*;
+use print::pprust;
+use ast_util::{path_to_ident, stmt_id};
+use diagnostic::span_handler;
+use parse::token::ident_interner;
 
 enum path_elt {
     path_mod(ident),
diff --git a/src/libsyntax/ast_util.rs b/src/libsyntax/ast_util.rs
index f89b1607a70b..6f594cd6d70d 100644
--- a/src/libsyntax/ast_util.rs
+++ b/src/libsyntax/ast_util.rs
@@ -1,5 +1,5 @@
-import codemap::span;
-import ast::*;
+use codemap::span;
+use ast::*;
 
 pure fn spanned<T>(lo: uint, hi: uint, +t: T) -> spanned<T> {
     respan(mk_sp(lo, hi), t)
diff --git a/src/libsyntax/attr.rs b/src/libsyntax/attr.rs
index 70ca59bc1fc8..9dc610e2fb66 100644
--- a/src/libsyntax/attr.rs
+++ b/src/libsyntax/attr.rs
@@ -1,11 +1,11 @@
 // Functions dealing with attributes and meta_items
 
-import std::map;
-import std::map::hashmap;
-import either::Either;
-import diagnostic::span_handler;
-import ast_util::{spanned, dummy_spanned};
-import parse::comments::{doc_comment_style, strip_doc_comment_decoration};
+use std::map;
+use std::map::hashmap;
+use either::Either;
+use diagnostic::span_handler;
+use ast_util::{spanned, dummy_spanned};
+use parse::comments::{doc_comment_style, strip_doc_comment_decoration};
 
 // Constructors
 export mk_name_value_item_str;
diff --git a/src/libsyntax/codemap.rs b/src/libsyntax/codemap.rs
index cd28136a92b1..40e51adc293f 100644
--- a/src/libsyntax/codemap.rs
+++ b/src/libsyntax/codemap.rs
@@ -1,4 +1,4 @@
-import dvec::DVec;
+use dvec::DVec;
 
 export filename;
 export filemap;
diff --git a/src/libsyntax/diagnostic.rs b/src/libsyntax/diagnostic.rs
index 475f3976afe7..1b7d6bf79d96 100644
--- a/src/libsyntax/diagnostic.rs
+++ b/src/libsyntax/diagnostic.rs
@@ -1,6 +1,6 @@
-import std::term;
-import io::WriterUtil;
-import codemap::span;
+use std::term;
+use io::WriterUtil;
+use codemap::span;
 
 export emitter, emit;
 export level, fatal, error, warning, note;
diff --git a/src/libsyntax/ext/auto_serialize.rs b/src/libsyntax/ext/auto_serialize.rs
index bcbe5c881101..bed082e03d48 100644
--- a/src/libsyntax/ext/auto_serialize.rs
+++ b/src/libsyntax/ext/auto_serialize.rs
@@ -69,10 +69,10 @@ into the tree.  This is intended to prevent us from inserting the same
 node twice.
 
 */
-import base::*;
-import codemap::span;
-import std::map;
-import std::map::hashmap;
+use base::*;
+use codemap::span;
+use std::map;
+use std::map::hashmap;
 
 export expand;
 
diff --git a/src/libsyntax/ext/base.rs b/src/libsyntax/ext/base.rs
index 7a3eb4b67e93..d4d5d2b3b225 100644
--- a/src/libsyntax/ext/base.rs
+++ b/src/libsyntax/ext/base.rs
@@ -1,8 +1,8 @@
-import std::map::hashmap;
-import parse::parser;
-import diagnostic::span_handler;
-import codemap::{codemap, span, expn_info, expanded_from};
-import std::map::str_hash;
+use std::map::hashmap;
+use parse::parser;
+use diagnostic::span_handler;
+use codemap::{codemap, span, expn_info, expanded_from};
+use std::map::str_hash;
 
 // obsolete old-style #macro code:
 //
diff --git a/src/libsyntax/ext/build.rs b/src/libsyntax/ext/build.rs
index 2207dee09c61..12fbb00e6c60 100644
--- a/src/libsyntax/ext/build.rs
+++ b/src/libsyntax/ext/build.rs
@@ -1,5 +1,5 @@
-import codemap::span;
-import base::ext_ctxt;
+use codemap::span;
+use base::ext_ctxt;
 
 fn mk_expr(cx: ext_ctxt, sp: codemap::span, expr: ast::expr_) ->
     @ast::expr {
diff --git a/src/libsyntax/ext/concat_idents.rs b/src/libsyntax/ext/concat_idents.rs
index 4e344d626263..45e6bf43f4be 100644
--- a/src/libsyntax/ext/concat_idents.rs
+++ b/src/libsyntax/ext/concat_idents.rs
@@ -1,4 +1,4 @@
-import base::*;
+use base::*;
 
 fn expand_syntax_ext(cx: ext_ctxt, sp: codemap::span, arg: ast::mac_arg,
                      _body: ast::mac_body) -> @ast::expr {
diff --git a/src/libsyntax/ext/env.rs b/src/libsyntax/ext/env.rs
index 9720eb7d4ce6..8cecceb2e554 100644
--- a/src/libsyntax/ext/env.rs
+++ b/src/libsyntax/ext/env.rs
@@ -4,8 +4,8 @@
  * should all get sucked into either the compiler syntax extension plugin
  * interface.
  */
-import base::*;
-import build::mk_uniq_str;
+use base::*;
+use build::mk_uniq_str;
 export expand_syntax_ext;
 
 fn expand_syntax_ext(cx: ext_ctxt, sp: codemap::span, arg: ast::mac_arg,
diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index 7c1be7b42a7e..54c1f496a2f0 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -1,14 +1,14 @@
-import std::map::hashmap;
+use std::map::hashmap;
 
-import ast::{crate, expr_, expr_mac, mac_invoc, mac_invoc_tt,
+use ast::{crate, expr_, expr_mac, mac_invoc, mac_invoc_tt,
              tt_delim, tt_tok, item_mac};
-import fold::*;
-import ext::base::*;
-import ext::qquote::{qq_helper};
-import parse::{parser, parse_expr_from_source_str, new_parser_from_tt};
+use fold::*;
+use ext::base::*;
+use ext::qquote::{qq_helper};
+use parse::{parser, parse_expr_from_source_str, new_parser_from_tt};
 
 
-import codemap::{span, expanded_from};
+use codemap::{span, expanded_from};
 
 fn expand_expr(exts: hashmap<~str, syntax_extension>, cx: ext_ctxt,
                e: expr_, s: span, fld: ast_fold,
diff --git a/src/libsyntax/ext/fmt.rs b/src/libsyntax/ext/fmt.rs
index 829e16e39920..04bb91783658 100644
--- a/src/libsyntax/ext/fmt.rs
+++ b/src/libsyntax/ext/fmt.rs
@@ -5,10 +5,10 @@
  * should all get sucked into either the standard library extfmt module or the
  * compiler syntax extension plugin interface.
  */
-import extfmt::ct::*;
-import base::*;
-import codemap::span;
-import ext::build::*;
+use extfmt::ct::*;
+use base::*;
+use codemap::span;
+use ext::build::*;
 export expand_syntax_ext;
 
 fn expand_syntax_ext(cx: ext_ctxt, sp: span, arg: ast::mac_arg,
diff --git a/src/libsyntax/ext/ident_to_str.rs b/src/libsyntax/ext/ident_to_str.rs
index cc083643fc9b..86145df5da23 100644
--- a/src/libsyntax/ext/ident_to_str.rs
+++ b/src/libsyntax/ext/ident_to_str.rs
@@ -1,6 +1,5 @@
-import base::*;
-import build::mk_uniq_str;
-import option;
+use base::*;
+use build::mk_uniq_str;
 
 fn expand_syntax_ext(cx: ext_ctxt, sp: codemap::span, arg: ast::mac_arg,
                      _body: ast::mac_body) -> @ast::expr {
diff --git a/src/libsyntax/ext/log_syntax.rs b/src/libsyntax/ext/log_syntax.rs
index 88e11f375135..e87ad446a421 100644
--- a/src/libsyntax/ext/log_syntax.rs
+++ b/src/libsyntax/ext/log_syntax.rs
@@ -1,5 +1,5 @@
-import base::*;
-import io::WriterUtil;
+use base::*;
+use io::WriterUtil;
 
 fn expand_syntax_ext(cx: ext_ctxt, sp: codemap::span, tt: ~[ast::token_tree])
     -> base::mac_result {
diff --git a/src/libsyntax/ext/pipes.rs b/src/libsyntax/ext/pipes.rs
index 2e9125d6c228..ad4984c55582 100644
--- a/src/libsyntax/ext/pipes.rs
+++ b/src/libsyntax/ext/pipes.rs
@@ -33,16 +33,16 @@ FIXME (#3072) - This is still incomplete.
 
 */
 
-import codemap::span;
-import ext::base::ext_ctxt;
-import ast::tt_delim;
-import parse::lexer::{new_tt_reader, reader};
-import parse::parser::{parser, SOURCE_FILE};
-import parse::common::parser_common;
+use codemap::span;
+use ext::base::ext_ctxt;
+use ast::tt_delim;
+use parse::lexer::{new_tt_reader, reader};
+use parse::parser::{parser, SOURCE_FILE};
+use parse::common::parser_common;
 
-import pipes::parse_proto::proto_parser;
+use pipes::parse_proto::proto_parser;
 
-import pipes::proto::{visit, protocol};
+use pipes::proto::{visit, protocol};
 
 fn expand_proto(cx: ext_ctxt, _sp: span, id: ast::ident,
                 tt: ~[ast::token_tree]) -> base::mac_result
diff --git a/src/libsyntax/ext/pipes/ast_builder.rs b/src/libsyntax/ext/pipes/ast_builder.rs
index b346e23178e1..138d7b755c39 100644
--- a/src/libsyntax/ext/pipes/ast_builder.rs
+++ b/src/libsyntax/ext/pipes/ast_builder.rs
@@ -3,10 +3,10 @@
 // To start with, it will be use dummy spans, but it might someday do
 // something smarter.
 
-import ast::{ident, node_id};
-import ast_util::respan;
-import codemap::span;
-import ext::base::mk_ctxt;
+use ast::{ident, node_id};
+use ast_util::respan;
+use codemap::span;
+use ext::base::mk_ctxt;
 
 // Transitional reexports so qquote can find the paths it is looking for
 mod syntax {
diff --git a/src/libsyntax/ext/pipes/check.rs b/src/libsyntax/ext/pipes/check.rs
index 3468754b6f8a..5fcc00ef0121 100644
--- a/src/libsyntax/ext/pipes/check.rs
+++ b/src/libsyntax/ext/pipes/check.rs
@@ -19,10 +19,10 @@ that.
 
 */
 
-import ext::base::ext_ctxt;
+use ext::base::ext_ctxt;
 
-import proto::{state, protocol, next_state};
-import ast_builder::empty_span;
+use proto::{state, protocol, next_state};
+use ast_builder::empty_span;
 
 impl ext_ctxt: proto::visitor<(), (), ()>  {
     fn visit_proto(_proto: protocol,
diff --git a/src/libsyntax/ext/pipes/liveness.rs b/src/libsyntax/ext/pipes/liveness.rs
index 2003e51f6f94..fa0ab0f4c0ba 100644
--- a/src/libsyntax/ext/pipes/liveness.rs
+++ b/src/libsyntax/ext/pipes/liveness.rs
@@ -27,9 +27,9 @@ updating the states using rule (2) until there are no changes.
 
 */
 
-import std::bitv::{Bitv};
+use std::bitv::{Bitv};
 
-import ast_builder::empty_span;
+use ast_builder::empty_span;
 
 fn analyze(proto: protocol, _cx: ext_ctxt) {
     debug!("initializing colive analysis");
diff --git a/src/libsyntax/ext/pipes/parse_proto.rs b/src/libsyntax/ext/pipes/parse_proto.rs
index c6562b068f30..5c15b616b4ae 100644
--- a/src/libsyntax/ext/pipes/parse_proto.rs
+++ b/src/libsyntax/ext/pipes/parse_proto.rs
@@ -1,9 +1,9 @@
 // Parsing pipes protocols from token trees.
 
-import parse::parser;
-import parse::token;
+use parse::parser;
+use parse::token;
 
-import pipec::*;
+use pipec::*;
 
 trait proto_parser {
     fn parse_proto(id: ~str) -> protocol;
diff --git a/src/libsyntax/ext/pipes/pipec.rs b/src/libsyntax/ext/pipes/pipec.rs
index 44b99bc2ad5a..07c766792b55 100644
--- a/src/libsyntax/ext/pipes/pipec.rs
+++ b/src/libsyntax/ext/pipes/pipec.rs
@@ -1,19 +1,18 @@
 // A protocol compiler for Rust.
 
-import to_str::ToStr;
+use to_str::ToStr;
 
-import dvec::DVec;
+use dvec::DVec;
 
-import ast::ident;
-import util::interner;
-import print::pprust;
-import pprust::{item_to_str, ty_to_str};
-import ext::base::{mk_ctxt, ext_ctxt};
-import parse;
-import parse::*;
-import proto::*;
+use ast::ident;
+use util::interner;
+use print::pprust;
+use pprust::{item_to_str, ty_to_str};
+use ext::base::{mk_ctxt, ext_ctxt};
+use parse::*;
+use proto::*;
 
-import ast_builder::{append_types, path, empty_span};
+use ast_builder::{append_types, path, empty_span};
 
 // Transitional reexports so qquote can find the paths it is looking for
 mod syntax {
diff --git a/src/libsyntax/ext/pipes/proto.rs b/src/libsyntax/ext/pipes/proto.rs
index 3d763c271401..4e09aa4c9565 100644
--- a/src/libsyntax/ext/pipes/proto.rs
+++ b/src/libsyntax/ext/pipes/proto.rs
@@ -1,7 +1,7 @@
-import to_str::ToStr;
-import dvec::DVec;
+use to_str::ToStr;
+use dvec::DVec;
 
-import ast_builder::{path, append_types};
+use ast_builder::{path, append_types};
 
 enum direction { send, recv }
 
diff --git a/src/libsyntax/ext/qquote.rs b/src/libsyntax/ext/qquote.rs
index 47f551a9e988..7d03eb175515 100644
--- a/src/libsyntax/ext/qquote.rs
+++ b/src/libsyntax/ext/qquote.rs
@@ -1,18 +1,18 @@
-import ast::{crate, expr_, mac_invoc,
+use ast::{crate, expr_, mac_invoc,
                      mac_aq, mac_var};
-import parse::parser;
-import parse::parser::parse_from_source_str;
-import dvec::DVec;
-import parse::token::ident_interner;
+use parse::parser;
+use parse::parser::parse_from_source_str;
+use dvec::DVec;
+use parse::token::ident_interner;
 
-import fold::*;
-import visit::*;
-import ext::base::*;
-import ext::build::*;
-import print::*;
-import io::*;
+use fold::*;
+use visit::*;
+use ext::base::*;
+use ext::build::*;
+use print::*;
+use io::*;
 
-import codemap::span;
+use codemap::span;
 
 struct gather_item {
     lo: uint;
diff --git a/src/libsyntax/ext/simplext.rs b/src/libsyntax/ext/simplext.rs
index d9a09ffde838..e1cb1cf48063 100644
--- a/src/libsyntax/ext/simplext.rs
+++ b/src/libsyntax/ext/simplext.rs
@@ -1,12 +1,12 @@
-import codemap::span;
-import std::map::{hashmap, str_hash, uint_hash};
-import dvec::DVec;
+use codemap::span;
+use std::map::{hashmap, str_hash, uint_hash};
+use dvec::DVec;
 
-import base::*;
+use base::*;
 
-import fold::*;
-import ast_util::respan;
-import ast::{ident, path, ty, blk_, expr, expr_path,
+use fold::*;
+use ast_util::respan;
+use ast::{ident, path, ty, blk_, expr, expr_path,
              expr_vec, expr_mac, mac_invoc, node_id, expr_index};
 
 export add_new_extension;
diff --git a/src/libsyntax/ext/source_util.rs b/src/libsyntax/ext/source_util.rs
index 2af871ba1235..b6f740603fce 100644
--- a/src/libsyntax/ext/source_util.rs
+++ b/src/libsyntax/ext/source_util.rs
@@ -1,8 +1,7 @@
-import base::*;
-import ast;
-import codemap::span;
-import print::pprust;
-import build::{mk_base_vec_e,mk_uint,mk_u8,mk_uniq_str};
+use base::*;
+use codemap::span;
+use print::pprust;
+use build::{mk_base_vec_e,mk_uint,mk_u8,mk_uniq_str};
 
 export expand_line;
 export expand_col;
diff --git a/src/libsyntax/ext/trace_macros.rs b/src/libsyntax/ext/trace_macros.rs
index b647e868da53..c2d4de1b423c 100644
--- a/src/libsyntax/ext/trace_macros.rs
+++ b/src/libsyntax/ext/trace_macros.rs
@@ -1,9 +1,9 @@
-import codemap::span;
-import ext::base::ext_ctxt;
-import ast::tt_delim;
-import parse::lexer::{new_tt_reader, reader};
-import parse::parser::{parser, SOURCE_FILE};
-import parse::common::parser_common;
+use codemap::span;
+use ext::base::ext_ctxt;
+use ast::tt_delim;
+use parse::lexer::{new_tt_reader, reader};
+use parse::parser::{parser, SOURCE_FILE};
+use parse::common::parser_common;
 
 fn expand_trace_macros(cx: ext_ctxt, sp: span,
                        tt: ~[ast::token_tree]) -> base::mac_result
diff --git a/src/libsyntax/ext/tt/macro_parser.rs b/src/libsyntax/ext/tt/macro_parser.rs
index db96ce484be7..22f588f98c5c 100644
--- a/src/libsyntax/ext/tt/macro_parser.rs
+++ b/src/libsyntax/ext/tt/macro_parser.rs
@@ -1,16 +1,16 @@
 // Earley-like parser for macros.
-import parse::token;
-import parse::token::{token, EOF, to_str, nonterminal};
-import parse::lexer::*; //resolve bug?
+use parse::token;
+use parse::token::{token, EOF, to_str, nonterminal};
+use parse::lexer::*; //resolve bug?
 //import parse::lexer::{reader, tt_reader, tt_reader_as_reader};
-import parse::parser::{parser,SOURCE_FILE};
+use parse::parser::{parser,SOURCE_FILE};
 //import parse::common::parser_common;
-import parse::common::*; //resolve bug?
-import parse::parse_sess;
-import dvec::DVec;
-import ast::{matcher, match_tok, match_seq, match_nonterminal, ident};
-import ast_util::mk_sp;
-import std::map::{hashmap, uint_hash};
+use parse::common::*; //resolve bug?
+use parse::parse_sess;
+use dvec::DVec;
+use ast::{matcher, match_tok, match_seq, match_nonterminal, ident};
+use ast_util::mk_sp;
+use std::map::{hashmap, uint_hash};
 
 /* This is an Earley-like parser, without support for in-grammar nonterminals,
 only by calling out to the main rust parser for named nonterminals (which it
diff --git a/src/libsyntax/ext/tt/macro_rules.rs b/src/libsyntax/ext/tt/macro_rules.rs
index 1fd2f880595e..30b5d479f05b 100644
--- a/src/libsyntax/ext/tt/macro_rules.rs
+++ b/src/libsyntax/ext/tt/macro_rules.rs
@@ -1,14 +1,14 @@
-import base::{ext_ctxt, mac_result, mr_expr, mr_def, expr_tt};
-import codemap::span;
-import ast::{ident, matcher_, matcher, match_tok,
+use base::{ext_ctxt, mac_result, mr_expr, mr_def, expr_tt};
+use codemap::span;
+use ast::{ident, matcher_, matcher, match_tok,
              match_nonterminal, match_seq, tt_delim};
-import parse::lexer::{new_tt_reader, reader};
-import parse::token::{FAT_ARROW, SEMI, LBRACE, RBRACE, nt_matchers, nt_tt};
-import parse::parser::{parser, SOURCE_FILE};
-import macro_parser::{parse, parse_or_else, success, failure, named_match,
+use parse::lexer::{new_tt_reader, reader};
+use parse::token::{FAT_ARROW, SEMI, LBRACE, RBRACE, nt_matchers, nt_tt};
+use parse::parser::{parser, SOURCE_FILE};
+use macro_parser::{parse, parse_or_else, success, failure, named_match,
                       matched_seq, matched_nonterminal, error};
-import std::map::hashmap;
-import parse::token::special_idents;
+use std::map::hashmap;
+use parse::token::special_idents;
 
 fn add_new_extension(cx: ext_ctxt, sp: span, name: ident,
                      arg: ~[ast::token_tree]) -> base::mac_result {
diff --git a/src/libsyntax/ext/tt/transcribe.rs b/src/libsyntax/ext/tt/transcribe.rs
index f353eecb9260..01e2328c85a4 100644
--- a/src/libsyntax/ext/tt/transcribe.rs
+++ b/src/libsyntax/ext/tt/transcribe.rs
@@ -1,10 +1,10 @@
-import diagnostic::span_handler;
-import ast::{token_tree, tt_delim, tt_tok, tt_seq, tt_nonterminal,ident};
-import macro_parser::{named_match, matched_seq, matched_nonterminal};
-import codemap::span;
-import parse::token::{EOF, INTERPOLATED, IDENT, token, nt_ident,
+use diagnostic::span_handler;
+use ast::{token_tree, tt_delim, tt_tok, tt_seq, tt_nonterminal,ident};
+use macro_parser::{named_match, matched_seq, matched_nonterminal};
+use codemap::span;
+use parse::token::{EOF, INTERPOLATED, IDENT, token, nt_ident,
                       ident_interner};
-import std::map::{hashmap, box_str_hash};
+use std::map::{hashmap, box_str_hash};
 
 export tt_reader,  new_tt_reader, dup_tt_reader, tt_next_token;
 
diff --git a/src/libsyntax/fold.rs b/src/libsyntax/fold.rs
index 7375eb49aed1..9f5de7f7412a 100644
--- a/src/libsyntax/fold.rs
+++ b/src/libsyntax/fold.rs
@@ -1,5 +1,5 @@
-import codemap::span;
-import ast::*;
+use codemap::span;
+use ast::*;
 
 export ast_fold_precursor;
 export ast_fold;
diff --git a/src/libsyntax/parse.rs b/src/libsyntax/parse.rs
index 82a3c4ce6c50..7190337a5ed4 100644
--- a/src/libsyntax/parse.rs
+++ b/src/libsyntax/parse.rs
@@ -12,14 +12,14 @@ export parse_expr_from_source_str, parse_item_from_source_str;
 export parse_stmt_from_source_str;
 export parse_from_source_str;
 
-import parser::parser;
-import attr::parser_attr;
-import common::parser_common;
-import ast::node_id;
-import util::interner;
-import diagnostic::{span_handler, mk_span_handler, mk_handler, emitter};
-import lexer::{reader, string_reader};
-import parse::token::{ident_interner, mk_ident_interner};
+use parser::parser;
+use attr::parser_attr;
+use common::parser_common;
+use ast::node_id;
+use util::interner;
+use diagnostic::{span_handler, mk_span_handler, mk_handler, emitter};
+use lexer::{reader, string_reader};
+use parse::token::{ident_interner, mk_ident_interner};
 
 type parse_sess = @{
     cm: codemap::codemap,
diff --git a/src/libsyntax/parse/attr.rs b/src/libsyntax/parse/attr.rs
index 074b7c5829db..9be4909814b1 100644
--- a/src/libsyntax/parse/attr.rs
+++ b/src/libsyntax/parse/attr.rs
@@ -1,6 +1,6 @@
-import either::{Either, Left, Right};
-import ast_util::spanned;
-import common::*; //resolve bug?
+use either::{Either, Left, Right};
+use ast_util::spanned;
+use common::*; //resolve bug?
 
 export attr_or_ext;
 export parser_attr;
diff --git a/src/libsyntax/parse/classify.rs b/src/libsyntax/parse/classify.rs
index 3ad33b8f2180..4838c91f8566 100644
--- a/src/libsyntax/parse/classify.rs
+++ b/src/libsyntax/parse/classify.rs
@@ -2,7 +2,7 @@
   Predicates on exprs and stmts that the pretty-printer and parser use
  */
 
-import ast_util::operator_prec;
+use ast_util::operator_prec;
 
 fn expr_requires_semi_to_be_stmt(e: @ast::expr) -> bool {
     match e.node {
diff --git a/src/libsyntax/parse/comments.rs b/src/libsyntax/parse/comments.rs
index 7b18ca532e06..2d0000749361 100644
--- a/src/libsyntax/parse/comments.rs
+++ b/src/libsyntax/parse/comments.rs
@@ -1,6 +1,6 @@
-import io::println;//XXXXXXXXxxx
-import util::interner;
-import lexer::{string_reader, bump, is_eof, nextch,
+use io::println;//XXXXXXXXxxx
+use util::interner;
+use lexer::{string_reader, bump, is_eof, nextch,
                is_whitespace, get_str_from, reader};
 
 export cmnt;
diff --git a/src/libsyntax/parse/common.rs b/src/libsyntax/parse/common.rs
index 9cca463c7c3d..6fc05e1f5bda 100644
--- a/src/libsyntax/parse/common.rs
+++ b/src/libsyntax/parse/common.rs
@@ -1,7 +1,7 @@
-import std::map::{hashmap};
-import ast_util::spanned;
-import parser::parser;
-import lexer::reader;
+use std::map::{hashmap};
+use ast_util::spanned;
+use parser::parser;
+use lexer::reader;
 
 type seq_sep = {
     sep: Option<token::token>,
diff --git a/src/libsyntax/parse/eval.rs b/src/libsyntax/parse/eval.rs
index 39f8bb59c1fd..526b5101d34e 100644
--- a/src/libsyntax/parse/eval.rs
+++ b/src/libsyntax/parse/eval.rs
@@ -1,5 +1,5 @@
-import parser::{parser, SOURCE_FILE};
-import attr::parser_attr;
+use parser::{parser, SOURCE_FILE};
+use attr::parser_attr;
 
 export eval_crate_directives_to_mod;
 
diff --git a/src/libsyntax/parse/lexer.rs b/src/libsyntax/parse/lexer.rs
index e51064d6ffec..e4c5d233867e 100644
--- a/src/libsyntax/parse/lexer.rs
+++ b/src/libsyntax/parse/lexer.rs
@@ -1,6 +1,6 @@
-import diagnostic::span_handler;
-import codemap::span;
-import ext::tt::transcribe::{tt_reader,  new_tt_reader, dup_tt_reader,
+use diagnostic::span_handler;
+use codemap::span;
+use ext::tt::transcribe::{tt_reader,  new_tt_reader, dup_tt_reader,
                              tt_next_token};
 
 export reader, string_reader, new_string_reader, is_whitespace;
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index d96401b00b3f..60cee541965b 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -1,21 +1,21 @@
-import print::pprust::expr_to_str;
+use print::pprust::expr_to_str;
 
-import result::Result;
-import either::{Either, Left, Right};
-import std::map::{hashmap, str_hash};
-import token::{can_begin_expr, is_ident, is_ident_or_path, is_plain_ident,
+use result::Result;
+use either::{Either, Left, Right};
+use std::map::{hashmap, str_hash};
+use token::{can_begin_expr, is_ident, is_ident_or_path, is_plain_ident,
                INTERPOLATED};
-import codemap::{span,fss_none};
-import util::interner::interner;
-import ast_util::{spanned, respan, mk_sp, ident_to_path, operator_prec};
-import lexer::reader;
-import prec::{as_prec, token_to_binop};
-import attr::parser_attr;
-import common::{seq_sep_trailing_disallowed, seq_sep_trailing_allowed,
+use codemap::{span,fss_none};
+use util::interner::interner;
+use ast_util::{spanned, respan, mk_sp, ident_to_path, operator_prec};
+use lexer::reader;
+use prec::{as_prec, token_to_binop};
+use attr::parser_attr;
+use common::{seq_sep_trailing_disallowed, seq_sep_trailing_allowed,
                 seq_sep_none, token_to_str};
-import dvec::DVec;
-import vec::{push};
-import ast::{_mod, add, alt_check, alt_exhaustive, arg, arm, attribute,
+use dvec::DVec;
+use vec::{push};
+use ast::{_mod, add, alt_check, alt_exhaustive, arg, arm, attribute,
              bind_by_ref, bind_by_implicit_ref, bind_by_value, bind_by_move,
              bitand, bitor, bitxor, blk, blk_check_mode, bound_const,
              bound_copy, bound_send, bound_trait, bound_owned, box, by_copy,
@@ -69,7 +69,7 @@ export SOURCE_FILE;
 // defined in `parse` Fixing this will be easier when we have export
 // decls on individual items -- then parse can export this publicly, and
 // everything else crate-visibly.
-import parse_from_source_str;
+use parse::parse_from_source_str;
 export parse_from_source_str;
 
 export item_or_view_item, iovi_none, iovi_view_item, iovi_item;
diff --git a/src/libsyntax/parse/prec.rs b/src/libsyntax/parse/prec.rs
index 872ffeb84a53..668301db6201 100644
--- a/src/libsyntax/parse/prec.rs
+++ b/src/libsyntax/parse/prec.rs
@@ -2,9 +2,9 @@ export as_prec;
 export unop_prec;
 export token_to_binop;
 
-import token::*;
-import token::token;
-import ast::*;
+use token::*;
+use token::token;
+use ast::*;
 
 /// Unary operators have higher precedence than binary
 const unop_prec: uint = 100u;
diff --git a/src/libsyntax/parse/token.rs b/src/libsyntax/parse/token.rs
index 02729382dab7..5c71aaf2d297 100644
--- a/src/libsyntax/parse/token.rs
+++ b/src/libsyntax/parse/token.rs
@@ -1,7 +1,7 @@
-import util::interner;
-import util::interner::interner;
-import std::map::{hashmap, str_hash};
-import std::serialization::{serializer,
+use util::interner;
+use util::interner::interner;
+use std::map::{hashmap, str_hash};
+use std::serialization::{serializer,
                             deserializer,
                             serialize_uint,
                             deserialize_uint,
diff --git a/src/libsyntax/print/pp.rs b/src/libsyntax/print/pp.rs
index a693726e83f4..3c55b7aaf82c 100644
--- a/src/libsyntax/print/pp.rs
+++ b/src/libsyntax/print/pp.rs
@@ -1,5 +1,5 @@
-import io::WriterUtil;
-import dvec::DVec;
+use io::WriterUtil;
+use dvec::DVec;
 
 /*
  * This pretty-printer is a direct reimplementation of Philip Karlton's
diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index 8f27fa4f47b9..4e227bea5ccf 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -1,14 +1,12 @@
-import parse::{comments, lexer, token};
-import codemap::codemap;
-import pp::{break_offset, word, printer,
-            space, zerobreak, hardbreak, breaks, consistent,
-            inconsistent, eof};
-import diagnostic;
-import ast::{required, provided};
-import ast_util::{operator_prec};
-import dvec::DVec;
-import parse::classify::*;
-import parse::token::ident_interner;
+use parse::{comments, lexer, token};
+use codemap::codemap;
+use pp::{break_offset, word, printer, space, zerobreak, hardbreak, breaks};
+use pp::{consistent, inconsistent, eof};
+use ast::{required, provided};
+use ast_util::{operator_prec};
+use dvec::DVec;
+use parse::classify::*;
+use parse::token::ident_interner;
 
 // The ps is stored here to prevent recursive type.
 enum ann_node {
diff --git a/src/libsyntax/util/interner.rs b/src/libsyntax/util/interner.rs
index 73459bbaf5f2..9a52d6088870 100644
--- a/src/libsyntax/util/interner.rs
+++ b/src/libsyntax/util/interner.rs
@@ -1,9 +1,9 @@
 // An "interner" is a data structure that associates values with uint tags and
 // allows bidirectional lookup; i.e. given a value, one can easily find the
 // type, and vice versa.
-import std::map;
-import std::map::{hashmap, hashfn, eqfn};
-import dvec::DVec;
+use std::map;
+use std::map::{hashmap, hashfn, eqfn};
+use dvec::DVec;
 
 type hash_interner<T: const> =
     {map: hashmap<T, uint>,
diff --git a/src/libsyntax/visit.rs b/src/libsyntax/visit.rs
index 70923a67d8dc..410108bb8ce8 100644
--- a/src/libsyntax/visit.rs
+++ b/src/libsyntax/visit.rs
@@ -1,6 +1,6 @@
 
-import ast::*;
-import codemap::span;
+use ast::*;
+use codemap::span;
 
 // Context-passing AST walker. Each overridden visit method has full control
 // over what happens with its node, it can do its own traversal of the node's