完成Haskell部分的SQL词法分析器

chusql-engine/chusql-engine.cabal

@@ -0,0 +1,40 @@
+cabal-version: 2.4
+
+name:           chusql-engine
+version:        1.0.0
+synopsis:       ChuSQL 执行引擎：SQL 词法与语法分析、表达式求值
+description:    ChuSQL 服务端执行引擎。负责 SQL 词法分析与 AST 构建、
+                WHERE 条件表达式求值、关系代数运算与内存表管理。
+build-type:     Simple
+
+library
+    hs-source-dirs:   src
+    exposed-modules:  ChuSQL.Syntax.Ast
+                      ChuSQL.Syntax.Parser
+                      ChuSQL.Model
+                      ChuSQL.Eval.Expr
+                      ChuSQL.Eval.Sort
+                      ChuSQL.Eval.Executor
+    build-depends:    base >= 4.14 && < 5
+                    , megaparsec
+                    , parser-combinators
+    default-language: Haskell2010
+    ghc-options:      -Wall
+
+executable chusql-engine
+    main-is:          Main.hs
+    hs-source-dirs:   app
+    build-depends:    base
+                    , chusql-engine
+    default-language: Haskell2010
+    ghc-options:      -Wall
+
+test-suite chusql-engine-test
+    type:             exitcode-stdio-1.0
+    main-is:          Spec.hs
+    hs-source-dirs:   test
+    build-depends:    base
+                    , chusql-engine
+                    , hspec
+    default-language: Haskell2010
+    ghc-options:      -Wall