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rb was only accepting physical filenames as log file.
This patch allow rb to accept now any io_device, valid registered name,
except standard_error which is replaced by standard_io.
Creation of two new exported functions : rb:log_list/0-1
that print in log file if existing, otherwise on standard_io.
Add new functions documentation and tests in rb_SUITE.
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* va/rb-improvements:
New rb:filter/2 to filter reports by date
New rb:filter/1 function to ease report filtering
Modify rb:grep/1 to grep reports using the re module
Fix minor typo in read_report/1
OTP-8443 The re:grep/1 function now uses the 're' module instead of the
deprecated 'regexp' module. There are new functions rb:filter/1
and rb:filter/2 for easier filtering of reports. (Thanks to
Alvaro Videla.)
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The function filter/2 expects a second parameter
Dates that can be used to return reports that
occurred between the provided dates.
Usage:
Dec22 = {{2009,12,22},{0,0,0}}.
Dec24 = {{2009,12,24},{0,0,0}}.
rb:filter(Filters, {Dec22, from}).
%will return reports that occurred from Dec22.
rb:filter(Filters, {Dec22, to}).
%will return reports that occurred before Dec22.
rb:filter(Filters, {Dec22, Dec24}).
%will return reports that occurred between Dec22
% and Dec24
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Currently in the rb module the only way to filter
reports is by using the grep/1 or re/1 functions
that use Regular Expressions.
This new function allow us to specify detailed
filters that will match against our reports.
Since the reports are proplists the filters are
tuples of the form {Key, Value}. If the report
contains that tuple, it will be displayed.
Usage:
1> rb:filter([{"foo", "bar"}, {"abc", "value"}]).
2> rb:filter([{"foo", "bar", no}]).
% excludes reports containing {"foo", "bar"}
3> rb:filter([{"foo", RegExp, re}]).
% the report must contain an element with Key = "foo"
% and Value must match RegExp
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