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|
------------------------------------------------------------------------
-- The Agda standard library
--
-- Examples of printing list and vec-based tables
------------------------------------------------------------------------
{-# OPTIONS --safe --cubical-compatible #-}
module README.Text.Tabular where
open import Function.Base
open import Relation.Binary.PropositionalEquality
open import Data.List.Base
open import Data.String.Base
open import Data.Vec.Base
open import Text.Tabular.Base
import Text.Tabular.List as Tabularˡ
import Text.Tabular.Vec as Tabularᵛ
------------------------------------------------------------------------
-- VEC
--
-- If you have a matrix of strings, you simply need to:
-- * pick a configuration (see below)
-- * pick an alignment for each column
-- * pass the matrix
--
-- The display function will then pad each string on the left, right,
-- or both to respect the alignment constraints.
-- It will return a list of strings corresponding to each line in the
-- table. You may then:
--- * use Data.String.Base's unlines to produce a String
-- * use Text.Pretty's text and vcat to produce a Doc (i.e. indentable!)
------------------------------------------------------------------------
_ : unlines (Tabularᵛ.display unicode
(Right ∷ Left ∷ Center ∷ [])
( ("foo" ∷ "bar" ∷ "baz" ∷ [])
∷ ("1" ∷ "2" ∷ "3" ∷ [])
∷ ("6" ∷ "5" ∷ "4" ∷ [])
∷ []))
≡ "┌───┬───┬───┐
\ \│foo│bar│baz│
\ \├───┼───┼───┤
\ \│ 1│2 │ 3 │
\ \├───┼───┼───┤
\ \│ 6│5 │ 4 │
\ \└───┴───┴───┘"
_ = refl
------------------------------------------------------------------------
-- CONFIG
--
-- Configurations allow you to change the way the table is displayed.
------------------------------------------------------------------------
-- We will use the same example throughout
foobar : Vec (Vec String 2) 3
foobar = ("foo" ∷ "bar" ∷ [])
∷ ("1" ∷ "2" ∷ [])
∷ ("4" ∷ "3" ∷ [])
∷ []
------------------------------------------------------------------------
-- Basic configurations: unicode, ascii, whitespace
-- unicode
_ : unlines (Tabularᵛ.display unicode
(Right ∷ Left ∷ [])
foobar)
≡ "┌───┬───┐
\ \│foo│bar│
\ \├───┼───┤
\ \│ 1│2 │
\ \├───┼───┤
\ \│ 4│3 │
\ \└───┴───┘"
_ = refl
-- ascii
_ : unlines (Tabularᵛ.display ascii
(Right ∷ Left ∷ [])
foobar)
≡ "+-------+
\ \|foo|bar|
\ \|---+---|
\ \| 1|2 |
\ \|---+---|
\ \| 4|3 |
\ \+-------+"
_ = refl
-- whitespace
_ : unlines (Tabularᵛ.display whitespace
(Right ∷ Left ∷ [])
foobar)
≡ "foo bar
\ \ 1 2
\ \ 4 3 "
_ = refl
------------------------------------------------------------------------
-- Modifiers: altering existing configurations
-- In these examples we will be using unicode as the base configuration.
-- However these modifiers apply to all configurations (and can even be
-- combined)
-- compact: drop the horizontal line between each row
_ : unlines (Tabularᵛ.display (compact unicode)
(Right ∷ Left ∷ [])
foobar)
≡ "┌───┬───┐
\ \│foo│bar│
\ \│ 1│2 │
\ \│ 4│3 │
\ \└───┴───┘"
_ = refl
-- noBorder: drop the outside borders
_ : unlines (Tabularᵛ.display (noBorder unicode)
(Right ∷ Left ∷ [])
foobar)
≡ "foo│bar
\ \───┼───
\ \ 1│2
\ \───┼───
\ \ 4│3 "
_ = refl
-- addSpace : add whitespace space inside cells
_ : unlines (Tabularᵛ.display (addSpace unicode)
(Right ∷ Left ∷ [])
foobar)
≡ "┌─────┬─────┐
\ \│ foo │ bar │
\ \├─────┼─────┤
\ \│ 1 │ 2 │
\ \├─────┼─────┤
\ \│ 4 │ 3 │
\ \└─────┴─────┘"
_ = refl
-- compact together with addSpace
_ : unlines (Tabularᵛ.display (compact (addSpace unicode))
(Right ∷ Left ∷ [])
foobar)
≡ "┌─────┬─────┐
\ \│ foo │ bar │
\ \│ 1 │ 2 │
\ \│ 4 │ 3 │
\ \└─────┴─────┘"
_ = refl
------------------------------------------------------------------------
-- LIST
--
-- Same thing as for vectors except that if the list of lists is not
-- rectangular, it is padded with empty strings to make it so. If there
-- are not enough alignment directives, we arbitrarily pick Left.
------------------------------------------------------------------------
_ : unlines (Tabularˡ.display unicode
(Center ∷ Right ∷ [])
( ("foo" ∷ "bar" ∷ [])
∷ ("partial" ∷ "rows" ∷ "are" ∷ "ok" ∷ [])
∷ ("3" ∷ "2" ∷ "1" ∷ "..." ∷ "surprise!" ∷ [])
∷ []))
≡ "┌───────┬────┬───┬───┬─────────┐
\ \│ foo │ bar│ │ │ │
\ \├───────┼────┼───┼───┼─────────┤
\ \│partial│rows│are│ok │ │
\ \├───────┼────┼───┼───┼─────────┤
\ \│ 3 │ 2│1 │...│surprise!│
\ \└───────┴────┴───┴───┴─────────┘"
_ = refl
------------------------------------------------------------------------
-- LIST (UNSAFE)
--
-- If you know *for sure* that your data is already perfectly rectangular
-- i.e. all the rows of the list of lists have the same length
-- in each column, all the strings have the same width
-- then you can use the unsafeDisplay function defined Text.Tabular.Base.
--
-- This is what gets used internally by `Text.Tabular.Vec` and
-- `Text.Tabular.List` once the potentially unsafe data has been
-- processed.
------------------------------------------------------------------------
_ : unlines (unsafeDisplay (compact unicode)
( ("foo" ∷ "bar" ∷ [])
∷ (" 1" ∷ " 2" ∷ [])
∷ (" 4" ∷ " 3" ∷ [])
∷ []))
≡ "┌───┬───┐
\ \│foo│bar│
\ \│ 1│ 2│
\ \│ 4│ 3│
\ \└───┴───┘"
_ = refl
|
