[PATCH, COMMIT]: Allow ^ and ! inside linker scripts regexps

[Nick Clifton]

Hi Guys,

  I am applying the patch below to allow the caret (^) and exclamation
  point (!) characters to be used inside linker script regular
  expressions.  The code in fnmatch() (in libiberty) supports them, but
  the linker's parser was not accepting them.  Thus expressions like:
  
    .text: { *(.text.[^.]* )

  would not work.  

ld/ChangeLog
2010-08-31  Nick Clifton  <nickc@redhat.com>

	* ldlex.l (WILDCHAR): Add the caret and exclamation point
	characters, so that they can be used inside regexps.

Index: ld/ldlex.l
===================================================================
RCS file: /cvs/src/src/ld/ldlex.l,v
retrieving revision 1.46
diff -c -3 -p -r1.46 ldlex.l
*** ld/ldlex.l  10 Feb 2010 19:48:16 -0000      1.46
--- ld/ldlex.l  31 Aug 2010 15:58:07 -0000
*************** CMDFILENAMECHAR1  [_a-zA-Z0-9\/\.\\_\+\$
*** 99,105 ****
  FILENAMECHAR1 [_a-zA-Z\/\.\\\$\_\~]
  SYMBOLCHARN     [_a-zA-Z\/\.\\\$\_\~0-9]
  FILENAMECHAR  [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~]
! WILDCHAR      [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~\?\*]
  WHITE         [ \t\n\r]+
  
  NOCFILENAMECHAR       [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
--- 99,105 ----
  FILENAMECHAR1 [_a-zA-Z\/\.\\\$\_\~]
  SYMBOLCHARN     [_a-zA-Z\/\.\\\$\_\~0-9]
  FILENAMECHAR  [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~]
! WILDCHAR      [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~\?\*\^\!]
  WHITE         [ \t\n\r]+
  
  NOCFILENAMECHAR       [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]