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3 commits

Author SHA1 Message Date
Bill Currie
a45f8f98b6 [util] Make exprctx hashlinks double pointer 
The way I wound up using the field meant that exprctx should not "own"
the hashlinks chain, but rather just point to it. This fixes the nasty
access errors I had.
 2021-01-05 19:55:17 +09:00
Bill Currie
79f22ffebf [util] Propagate cexpr errors back to the caller 
Not much point in error detection when it's ignored.
 2020-12-21 20:15:43 +09:00
Bill Currie
f3682638d4 [util] Add a mini expression parser 
It is capable of parsing single expressions with fairly simple
operations. It current supports ints, enums, cvars and (external) data
structs. It is also thread-safe (in theory, needs proper testing) and
the memory it uses can be mass-freed.
 2020-12-21 14:22:42 +09:00