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neverpase: fix parsing of neverclaim produced by ltl2ba and ltl3ba

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These translator may output guards such as (a) || (b), but with the
changes in Spot 1.1.3 it would only work with ((a) || (b)).

Furthermore when ltlcross would fail to parse a neverclaim containing
such a guard, it would fail to parse all later neverclaims, because
the lexer was not properly reset.

* src/neverparse/neverclaimscan.ll: Scan (a) || (b) as a single
token.
(neverclaimyyopen): Reset the lexer.
* src/tgbatest/neverclaimread.test: Add a test for (a) || (b).
* NEWS: Update.
This commit is contained in:
Alexandre Duret-Lutz 2013-07-20 19:38:14 +02:00
parent 365d0ead94
commit 84c9f03767
3 changed files with 45 additions and 1 deletions
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7
NEWS
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@ -1,6 +1,11 @@
New in spot 1.1.3a (not released)
* Nothing yet.
* Bug fixes:
- The parser for neverclaim, updated in 1.1.3, would fail to
parse guards of the form (a) || (b) output by ltl2ba or
ltl3ba, and would only understand ((a) || (b)).
- When used from ltlcross, the same parser would fail to
parser further neverclaims after the first failure.
New in spot 1.1.3 (2013-07-09)