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regex confusion -- not matching; think it should?

From: Linda Walsh
Subject: regex confusion -- not matching; think it should?
Date: Wed, 12 Jun 2013 15:53:50 -0700
User-agent: Thunderbird

The trace looks aprolike this:
./ifc#137(handle_bonding_ops)> (( 18>3 ))
./ifc#138(handle_bonding_ops)> [[ mode=balance-rr 0 =~
    ^([a-zA-Z][-a-zA-Z0-9_]+)=(.+)[[:space:]]+[a-zA-Z][-a-zA-Z0-9_]+=.+.*$ ]]
./ifc#142(handle_bonding_ops)> [[  mode=balance-rr 0 =~ 
^([a-zA-Z][-a-zA-Z0-9_]+)=(.+)$ ]]
./ifc#145(handle_bonding_ops)> break

(#138 is all 1 line)
---- the source code looks like this:

  my id='[a-zA-Z][-a-zA-Z0-9_]+'
  while ((${#bond_ops}>3)); do
    if [[ $bond_ops =~ ^($id)=(.+)[[:space:]]+$id=.+.*$ ]]; then
    elif [[ "$bond_ops" =~ ^($id)=(.+)$ ]]; then
    else break; fi

I would think the 2nd match would match it, but no luck...
Note the 2nd source line has double quotes due to testing...
Originally it had no quotes, as I don't believe they are
necessary in this case.  Regardless, neither way matches.

So if not obvious, bond_ops has "mode=balance-rr 0" in it.


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