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tl: add support for ##[+] and ##[*]

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Suggested by Victor Khomenko.

* spot/parsetl/parsetl.yy, spot/parsetl/scantl.ll: Implement them.
* NEWS, doc/tl/tl.tex: Document them.
* tests/core/sugar.test: Add a couple of tests.
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Alexandre Duret-Lutz 2019-05-18 11:59:27 +02:00
parent b726d78cbd
commit f476483f4a
5 changed files with 19 additions and 3 deletions
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NEWS
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@ -58,6 +58,7 @@ New in spot 2.7.4.dev (not yet released)
way to write {[*2];a:b[+];c;1;e}, and {a ##[i:j] b} is parsed as
{a:{[*i..j];b}}. The formula::sugar_delay() function implement
this SVA operator in terms of the existing PSL operators.
##[+] and ##[*] are sugar for ##[1:$] and ##[0:$].
- spot::relabel_apply() make it easier to reverse the effect
of spot::relabel() or spot::relabel_bse() on formula.