pat: add prefix pattern

[timbray]

fixes: #62
Signed-off-by: Tim Bray tbray@textuality.com

[codecov-commenter]

Codecov Report

Base: 95.93% // Head: 95.83% // Decreases project coverage by -0.10% ⚠️

Coverage data is based on head (efa114a) compared to base (a40e66c).
Patch coverage: 91.48% of modified lines in pull request are covered.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #190      +/-   ##
==========================================
- Coverage   95.93%   95.83%   -0.10%     
==========================================
  Files          17       17              
  Lines        2067     2114      +47     
==========================================
+ Hits         1983     2026      +43     
- Misses         60       62       +2     
- Partials       24       26       +2     

Impacted Files	Coverage Δ
value_matcher.go	91.77% <85.71%> (-1.31%)	⬇️
pattern.go	96.59% <100.00%> (+0.41%)	⬆️

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[timbray]

Hmm, I guess I should bump version to 1.1.0, this is a new feature.

[embano1]

Hmm, I guess I should bump version to 1.1.0, this is a new feature.

You mean after merge, right? Agree, this is not just a patch release.

[timbray]

OK, I just realized this PR is stupid because

{"a": [ {"prefix": "foo"}]}

is identical to

{"a": [ { "shellstyle": "foo*"} ] } 

which is already implemented. So I will rewrite and with much less code.

[timbray]

is identical to

{"a": [ { "shellstyle": "foo*"} ] } 

Actually, I'm an idiot squared. That breaks if there's a * in the prefix. OK, am happy with this now, un-draft-i-fying it, would appreciate a review

[embano1]

Just nits left, I'll approve and let you decide whether you want to make small adjustments based on the review. At least reverting the default scenario seems like a zero-waste but good engineering practice.

[embano1]

LGTM