[SCM] GNU Autoconf source repository branch, master, updated. v2.64-55-gfb332fa

[Ralf Wildenhues]

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- Log -----------------------------------------------------------------
commit fb332fa541cacb201d0cb4f7b767b9c20ca1f024
Author: Ralf Wildenhues <address@hidden>
Date:   Tue Sep 22 07:36:04 2009 +0200

    Clarify documentation about Solaris sed quantifier restriction.
    
    * doc/autoconf.texi (Limitations of Usual Tools) <sed>: '*' does
    not work after subexpressions, \{M,N\} only after one-character
    expressions.  From GCC PR 38923.
    
    Signed-off-by: Ralf Wildenhues <address@hidden>

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

Summary of changes:
 ChangeLog         |    7 +++++++
 doc/autoconf.texi |    8 +++++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 6b338d0..d3443f7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2009-09-22  Ralf Wildenhues  <address@hidden>
+
+       Clarify documentation about Solaris sed quantifier restriction.
+       * doc/autoconf.texi (Limitations of Usual Tools) <sed>: '*' does
+       not work after subexpressions, \{M,N\} only after one-character
+       expressions.  From GCC PR 38923.
+
 2009-09-21  Eric Blake  <address@hidden>
 
        Fit configure output in 80 columns.
diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 53fab23..4032b9c 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -17967,9 +17967,11 @@ Nested parentheses in patterns (e.g., 
@samp{\(\(a*\)b*)\)}) are
 quite portable to current hosts, but was not supported by some ancient
 @command{sed} implementations like SVR3.
 
-Some @command{sed} implementations, e.g., Solaris,
-restrict the special role of the asterisk to one-character regular expressions.
-This may lead to unexpected behavior:
+Some @command{sed} implementations, e.g., Solaris, restrict the special
+role of the asterisk @samp{*} to one-character regular expressions and
+back-references, and the special role of interval expressions
address@hidden@address@hidden@}}, @address@hidden@var{m},address@hidden, or 
@address@hidden@var{m},@address@hidden
+to one-character regular expressions.  This may lead to unexpected behavior:
 
 @example
 $ @kbd{echo '1*23*4' | /usr/bin/sed 's/\(.\)*/x/g'}


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