diff options
| author | Steve Bennett <steveb@workware.net.au> | 2017-05-12 13:33:44 +1000 |
|---|---|---|
| committer | Steve Bennett <steveb@workware.net.au> | 2017-05-23 14:36:56 +1000 |
| commit | bd5139c89e714bb7e10a0da55d9a10f51e93516c (patch) | |
| tree | a1fb42986a3abc588e05f0b7eea4361c723f779c /tests | |
| parent | 7b2250a7e60968b0c3716a7caa780e6ca0a2ce9b (diff) | |
| download | jimtcl-bd5139c89e714bb7e10a0da55d9a10f51e93516c.zip jimtcl-bd5139c89e714bb7e10a0da55d9a10f51e93516c.tar.gz jimtcl-bd5139c89e714bb7e10a0da55d9a10f51e93516c.tar.bz2 | |
expr: Replace expression engine
Rework the expression engine to use recursive descent evaluation rather than
a shunting yard algorithm. Among other things, it is easier to make lazy operators
and the ternary operator work correctly.
In particular, the following expression no longer crashes: $(99?9,99?9:*9:999)?9)
And the code is now smaller.
Signed-off-by: Steve Bennett <steveb@workware.net.au>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/expr.test | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tests/expr.test b/tests/expr.test index dbe84f5..b195d4a 100644 --- a/tests/expr.test +++ b/tests/expr.test @@ -99,6 +99,14 @@ test expr-2.4 "Ternary operator - missing question" -body { expr {1 : 2} } -returnCodes error -match glob -result * +test expr-2.5 "Ternary operator with -ve values" { + expr {-1?-2:-3} +} -2 + +test expr-2.6 "Ternary operator with -ve values" { + expr {0?-2:-3} +} -3 + test expr-3.1 "in, ni operators" { set l {a b c d} set c C |