[SCM] GNU Autoconf source repository branch, master, updated. v2.63b-87-g497a186

[Eric Blake]

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- Log -----------------------------------------------------------------
commit 497a186732392d9ae297125071fc11794d364fcb
Author: Eric Blake <address@hidden>
Date:   Mon Jul 13 10:35:32 2009 -0600

    Don't hide leading space in autom4te --trace output.
    
    * bin/autom4te.in (handle_traces): Don't flatten leading and
    trailing space, since tracing spacing bugs can be useful.
    * tests/tools.at (autom4te --trace and whitespace): New test.
    
    Signed-off-by: Eric Blake <address@hidden>

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog       |    7 +++++++
 bin/autom4te.in |    5 +----
 tests/tools.at  |   15 +++++++++++++++
 3 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index a2450bd..e1a6494 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2009-07-16  Eric Blake  <address@hidden>
+
+       Don't hide leading space in autom4te --trace output.
+       * bin/autom4te.in (handle_traces): Don't flatten leading and
+       trailing space, since tracing spacing bugs can be useful.
+       * tests/tools.at (autom4te --trace and whitespace): New test.
+
 2009-07-13  Eric Blake  <address@hidden>
 
        Document that $srcdir can be used during configure.
diff --git a/bin/autom4te.in b/bin/autom4te.in
index 1baf507..3103369 100644
--- a/bin/autom4te.in
+++ b/bin/autom4te.in
@@ -750,10 +750,7 @@ sub handle_traces ($$%)
   # Note that the second pattern is `newline, tab or space'.  Don't lose
   # the tab!
   define([at_flatten],
-  [at_patsubst(at_patsubst(at_patsubst(at_patsubst([[[[$1]]]], [\\\n]),
-                                      [[\n\t ]+], [ ]),
-                          [ *\(.\)$], [\1]),
-              [^ *\(.*\)], [[\1]])])
+  [at_patsubst(at_patsubst([[[$1]]], [\\\n]), [[\n\t ]+], [ ])])
 
   define([at_args],    [at_shift(at_shift(at_shift(at_shift(at_shift($@)))))])
   define([at_at],      [_$0([$1], at_args($@))])
diff --git a/tests/tools.at b/tests/tools.at
index c4016cc..542e668 100644
--- a/tests/tools.at
+++ b/tests/tools.at
@@ -226,6 +226,21 @@ AT_CHECK_AUTOM4TE([-t 'TR A CE' -t 'TR(A)CE' file.m4])
 AT_CLEANUP
 
 
+AT_SETUP([autom4te --trace and whitespace])
+
+AT_DATA([file.m4],
+[[m4@&address@hidden([  a
+b      c  ], [\
+d\
+])
+]])
+AT_CHECK_AUTOM4TE([--language=m4sugar -t 'm4@&address@hidden' file.m4], [0],
+[[file.m4:1:m4@&address@hidden: a b c :d
+]])
+
+AT_CLEANUP
+
+
 ## ------------------ ##
 ## autoconf --trace.  ##
 ## ------------------ ##


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