Lsql.Csv.Core.BlockOps

This module contains the Block definition and functions for getting specific types of blocks from the list of Block.

Documentation

data Block

This data structure represents parsed blocks

Constructors

Select [Arg]

If Arg

Sort [Arg]

By [Arg]

getSelects :: [Block] -> [[Arg]]

Returns all selects blocks

getIf :: [Block] -> Arg

Makes conjunction of all if blocks (if none, simple True is returned) and returns it

getSort :: [Block] -> [Arg]

Finds sort block, if exists, and returns it. If there is non, [] is returned. If there is more than one sort block, fails.

getBy :: [Block] -> [Arg]

Finds by block, if exists, and returns it. If there is non, [] is returned. If there is more than one by block, fails.