On Tue, Jul 9, 2013 at 2:55 PM, Junio C Hamano <gits...@pobox.com> wrote:
> Eric Sunshine <sunsh...@sunshineco.com> writes:
>> On Tue, Jul 9, 2013 at 1:42 PM, Thomas Rast <tr...@inf.ethz.ch> wrote:
>>> Junio C Hamano <gits...@pobox.com> writes:
>>>>  (2) In the ranges "-L <anything>,/B/ -L /C/,<anything>", the
>>>>      beginning of the second range is found by choosing C that comes
>>>>      _after_ the end of the previous range (/B/ may choose either
>>>>      the second or the 4th line, and the only C that comes after
>>>>      either of them is the 5th line and that is where the second
>>>>      range should begin, not at the beginning of the file).  The
>>>>      same for "-L 1,3 -L /C/" (only C that comes after 3 is eligible
>>>>      to be the beginning of the second range).
>>> So passing several -L arguments does not blame the union of what each
>>> argument would blame individually?  Doesn't that make it rather harder
>>> to explain?
>> I don't think Junio meant to imply that. Collecting the blame ranges
>> can/should be a distinct step from coalescing them. Junio is saying
>> that an -L /re/ range search should start after the maximum line
>> number already specified by any preceding range.
> I am not sure if I want "maximum specified so far". I meant "start
> searching at the last location", e.g.
>         -L 100,200 -L 4,6 -L /A/,+20
> would want to find the first A after line 6, not after line 200.


>> Once all input ranges
>> are collected, they can be coalesced. (If a -L /re/ range happens to
>> be coalesced with or into some other range, that's fine: you're still
>> seeing blame output for the requested lines.)
> Yes.
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