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Re: [RFA/testsuite] Regexp-escape command in capture_command_output


On 06/11/2015 12:09 PM, Sergio Durigan Junior wrote:
>>> diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
>>> index 73e55e3..fe7dd60 100644
>>> --- a/gdb/testsuite/lib/gdb.exp
>>> +++ b/gdb/testsuite/lib/gdb.exp
>>> @@ -5185,7 +5185,7 @@ proc capture_command_output { command prefix } {
>>>  
>>>      set output_string ""
>>>      gdb_test_multiple "$command" "capture_command_output for $command" {
>>> -	-re "${command}\[\r\n\]+${prefix}(.*)\[\r\n\]+$gdb_prompt $" {
>>> +	-re "[string_to_regexp ${command}]\[\r\n\]+${prefix}(.*)\[\r\n\]+$gdb_prompt $" {
>>>  	    set output_string $expect_out(1,string)
> 
> The patch looks correct, but shouldn't we convert ${prefix} to regexp as
> well?

Actually, no, we shouldn't. Prefix is supposed to be a regexp that
expect can grok. Much of the test suite already relies on this; in
gdb.base/completion.exp:

set regs_output [capture_command_output "mt print registers" \
                     ".*Name.*Nr.*Rel.*Offset.*Size.*Type.\[^\n\]*\n"]

Keith


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