On Thu, Sep 8, 2022 at 7:32 PM Daniel Gustafsson <dan...@yesql.se> wrote: > [v3]
Note that the grammar has shift-reduce conflicts. If you run a fairly recent Bison, you can show them like this: bison -Wno-deprecated -Wcounterexamples -d -o filterparse.c filterparse.y filterparse.y: warning: 2 shift/reduce conflicts [-Wconflicts-sr] filterparse.y: warning: shift/reduce conflict on token C_INCLUDE [-Wcounterexamples] Example: • C_INCLUDE include_object pattern Shift derivation Filters ↳ 3: Filter ↳ 4: • C_INCLUDE include_object pattern Reduce derivation Filters ↳ 2: Filters Filter ↳ 1: ε • ↳ 4: C_INCLUDE include_object pattern filterparse.y: warning: shift/reduce conflict on token C_EXCLUDE [-Wcounterexamples] Example: • C_EXCLUDE exclude_object pattern Shift derivation Filters ↳ 3: Filter ↳ 5: • C_EXCLUDE exclude_object pattern Reduce derivation Filters ↳ 2: Filters Filter ↳ 1: ε • ↳ 5: C_EXCLUDE exclude_object pattern -- John Naylor EDB: http://www.enterprisedb.com