Extend parser to accept binary constants that begin with '0b' or '0B'. * NEWS: Announce change: * lex.ll: Define NUMBIN to be 0[bB] followed by 0,1, or '_'. Define NUMBER to be NUMREAL|NUMHEX|NUMBIN. *lex.ll (looks_like_bin): New function to detect 0[bB] prefix. *lex.ll (handle_numbe): Call looks_like_bin() and if found then convert binary string to double. * parser.tst: Add tests for new behavior.

#!/bin/sh
#
# Like mv $1 $2, but if the files are the same, just delete $1.
# Status is 0 if $2 is changed, 1 otherwise.

if test -r $2; then
  if cmp $1 $2 > /dev/null; then
    echo $2 is unchanged 1>&2
    rm -f $1
  else
    mv -f $1 $2
  fi
else
  mv -f $1 $2
fi