| commit | bd5139c89e714bb7e10a0da55d9a10f51e93516c | |
| author | Steve Bennett <steveb@workware.net.au> | |
| Fri, 12 May 2017 03:33:44 +0000 (12 13:33 +1000) | ||
| committer | Steve Bennett <steveb@workware.net.au> | |
| Tue, 23 May 2017 04:36:56 +0000 (23 14:36 +1000) | ||
| tree | a1fb42986a3abc588e05f0b7eea4361c723f779c | treesnapshot (tar.gz zip) |
| parent | 7b2250a7e60968b0c3716a7caa780e6ca0a2ce9b | commitdiff |
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>
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>
| jim.c | diffblobblamehistory | |
| jim.h | diffblobblamehistory | |
| regtest.tcl | diffblobblamehistory | |
| tests/expr.test | diffblobblamehistory |