New default-colseq flag to configure program's default COLLATING SEQUENCE

[nberth]

In the end this relies more on "alphabets" than "collating sequences", so I'm not sure yet whether the approach is appropriate, or if the option is properly named.

[codecov-commenter]

Codecov Report

Merging #72 (d065cff) into gcos4gnucobol-3.x (5a1ed6f) will increase coverage by 0.01%. The diff coverage is 83.33%.

@@                  Coverage Diff                  @@
##           gcos4gnucobol-3.x      #72      +/-   ##
=====================================================
+ Coverage              65.15%   65.16%   +0.01%     
=====================================================
  Files                     34       34              
  Lines                  56063    56098      +35     
  Branches               14672    14678       +6     
=====================================================
+ Hits                   36529    36558      +29     
- Misses                 13654    13657       +3     
- Partials                5880     5883       +3     

Impacted Files	Coverage Δ
cobc/tree.c	73.21% <0.00%> (ø)
cobc/cobc.c	70.78% <50.00%> (-0.03%)	:arrow_down:
cobc/typeck.c	65.06% <90.00%> (+0.10%)	:arrow_up:
cobc/flag.def	100.00% <100.00%> (ø)
libcob/common.c	55.65% <0.00%> (-0.14%)	:arrow_down:
cobc/codegen.c	74.55% <0.00%> (+0.06%)	:arrow_up:

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[GitMensch]

I'd say the main question is: should this not be applied in parser.y to base the alphanumeric_collation / default on it?

Or would you in general split file collating sequences (then we'd need a different name)?

And Changelog should likely reference the SF issue.

[nberth]

Now upstream.

@GitMensch I've had failures for the following two tests (not related to this PR):

• System routines for directories (1)
• System routines for files - filename mapping

Failures appear to be random; one of them also happened on https://ci.appveyor.com/project/GitMensch/gnucobol-3-x/builds/45653125/job/7h019vour18kj9mb

[GitMensch]

Thanks for the notice, I've just checked in the fix.