lib: Implement concat(Top|Bottom)Padded in terms of renderRow, allowing them to be width aware.

This commit is contained in:
Stephen Morgan 2020-11-04 10:44:15 +11:00
parent a620ab9666
commit 6d7bd9e475
4 changed files with 43 additions and 133 deletions

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@ -50,13 +50,18 @@ module Hledger.Utils.String (
import Data.Char (isSpace, toLower, toUpper)
import Data.List (intercalate, transpose)
import Data.Default (def)
import Data.List (intercalate)
import Text.Megaparsec ((<|>), between, many, noneOf, sepBy)
import Text.Megaparsec.Char (char)
import Text.Printf (printf)
import Hledger.Utils.Parse
import Hledger.Utils.Regex (toRegex', regexReplace)
import Text.Tabular (Header(..), Properties(..))
import Text.Tabular.AsciiWide (Align(..), Cell(..), TableOpts(..), renderRow)
import Text.WideString (strWidth, charWidth)
-- | Take elements from the end of a list.
takeEnd n l = go (drop n l) l
@ -172,26 +177,16 @@ unbracket s
-- | Join several multi-line strings as side-by-side rectangular strings of the same height, top-padded.
-- Treats wide characters as double width.
concatTopPadded :: [String] -> String
concatTopPadded strs = intercalate "\n" $ map concat $ transpose padded
where
lss = map lines strs
h = maximum $ map length lss
ypad ls = replicate (difforzero h (length ls)) "" ++ ls
xpad ls = map (padLeftWide w) ls where w | null ls = 0
| otherwise = maximum $ map strWidth ls
padded = map (xpad . ypad) lss
concatTopPadded = renderRow def{tableBorders=False, borderSpaces=False}
. Group NoLine . map (Header . cell)
where cell = Cell BottomLeft . map (\x -> (x, strWidth x)) . lines
-- | Join several multi-line strings as side-by-side rectangular strings of the same height, bottom-padded.
-- Treats wide characters as double width.
concatBottomPadded :: [String] -> String
concatBottomPadded strs = intercalate "\n" $ map concat $ transpose padded
where
lss = map lines strs
h = maximum $ map length lss
ypad ls = ls ++ replicate (difforzero h (length ls)) ""
xpad ls = map (padRightWide w) ls where w | null ls = 0
| otherwise = maximum $ map strWidth ls
padded = map (xpad . ypad) lss
concatBottomPadded = renderRow def{tableBorders=False, borderSpaces=False}
. Group NoLine . map (Header . cell)
where cell = Cell TopLeft . map (\x -> (x, strWidth x)) . lines
-- | Join multi-line strings horizontally, after compressing each of
@ -331,16 +326,6 @@ takeWidth w (c:cs) | cw <= w = c:takeWidth (w-cw) cs
| otherwise = ""
where cw = charWidth c
-- from Pandoc (copyright John MacFarlane, GPL)
-- see also http://unicode.org/reports/tr11/#Description
-- | Calculate the render width of a string, considering
-- wide characters (counted as double width), and line breaks
-- (in a multi-line string, the longest line determines the
-- width).
strWidth :: String -> Int
strWidth = maximum . (0:) . map (foldr (\a b -> charWidth a + b) 0) . lines
-- | Like strWidth, but also strips ANSI escape sequences before
-- calculating the width.
--
@ -358,51 +343,3 @@ stripAnsi s = either err id $ regexReplace ansire "" s
where
err = error "stripAnsi: invalid replacement pattern" -- PARTIAL, shouldn't happen
ansire = toRegex' "\ESC\\[([0-9]+;)*([0-9]+)?[ABCDHJKfmsu]" -- PARTIAL, should succeed
-- | Get the designated render width of a character: 0 for a combining
-- character, 1 for a regular character, 2 for a wide character.
-- (Wide characters are rendered as exactly double width in apps and
-- fonts that support it.) (From Pandoc.)
charWidth :: Char -> Int
charWidth c =
case c of
_ | c < '\x0300' -> 1
| c >= '\x0300' && c <= '\x036F' -> 0 -- combining
| c >= '\x0370' && c <= '\x10FC' -> 1
| c >= '\x1100' && c <= '\x115F' -> 2
| c >= '\x1160' && c <= '\x11A2' -> 1
| c >= '\x11A3' && c <= '\x11A7' -> 2
| c >= '\x11A8' && c <= '\x11F9' -> 1
| c >= '\x11FA' && c <= '\x11FF' -> 2
| c >= '\x1200' && c <= '\x2328' -> 1
| c >= '\x2329' && c <= '\x232A' -> 2
| c >= '\x232B' && c <= '\x2E31' -> 1
| c >= '\x2E80' && c <= '\x303E' -> 2
| c == '\x303F' -> 1
| c >= '\x3041' && c <= '\x3247' -> 2
| c >= '\x3248' && c <= '\x324F' -> 1 -- ambiguous
| c >= '\x3250' && c <= '\x4DBF' -> 2
| c >= '\x4DC0' && c <= '\x4DFF' -> 1
| c >= '\x4E00' && c <= '\xA4C6' -> 2
| c >= '\xA4D0' && c <= '\xA95F' -> 1
| c >= '\xA960' && c <= '\xA97C' -> 2
| c >= '\xA980' && c <= '\xABF9' -> 1
| c >= '\xAC00' && c <= '\xD7FB' -> 2
| c >= '\xD800' && c <= '\xDFFF' -> 1
| c >= '\xE000' && c <= '\xF8FF' -> 1 -- ambiguous
| c >= '\xF900' && c <= '\xFAFF' -> 2
| c >= '\xFB00' && c <= '\xFDFD' -> 1
| c >= '\xFE00' && c <= '\xFE0F' -> 1 -- ambiguous
| c >= '\xFE10' && c <= '\xFE19' -> 2
| c >= '\xFE20' && c <= '\xFE26' -> 1
| c >= '\xFE30' && c <= '\xFE6B' -> 2
| c >= '\xFE70' && c <= '\xFEFF' -> 1
| c >= '\xFF01' && c <= '\xFF60' -> 2
| c >= '\xFF61' && c <= '\x16A38' -> 1
| c >= '\x1B000' && c <= '\x1B001' -> 2
| c >= '\x1D000' && c <= '\x1F1FF' -> 1
| c >= '\x1F200' && c <= '\x1F251' -> 2
| c >= '\x1F300' && c <= '\x1F773' -> 1
| c >= '\x20000' && c <= '\x3FFFD' -> 2
| otherwise -> 1

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@ -69,8 +69,8 @@ import qualified Data.Text as T
-- import Hledger.Utils.Parse
-- import Hledger.Utils.Regex
import Hledger.Utils.String (charWidth)
import Hledger.Utils.Test
import Text.WideString (charWidth, textWidth)
-- lowercase, uppercase :: String -> String
-- lowercase = map toLower
@ -344,63 +344,6 @@ textTakeWidth w t | not (T.null t),
= T.cons c $ textTakeWidth (w-cw) (T.tail t)
| otherwise = ""
-- -- from Pandoc (copyright John MacFarlane, GPL)
-- -- see also http://unicode.org/reports/tr11/#Description
-- | Calculate the designated render width of a string, taking into
-- account wide characters and line breaks (the longest line within a
-- multi-line string determines the width ).
textWidth :: Text -> Int
textWidth "" = 0
textWidth s = maximum $ map (T.foldr (\a b -> charWidth a + b) 0) $ T.lines s
-- -- | Get the designated render width of a character: 0 for a combining
-- -- character, 1 for a regular character, 2 for a wide character.
-- -- (Wide characters are rendered as exactly double width in apps and
-- -- fonts that support it.) (From Pandoc.)
-- charWidth :: Char -> Int
-- charWidth c =
-- case c of
-- _ | c < '\x0300' -> 1
-- | c >= '\x0300' && c <= '\x036F' -> 0 -- combining
-- | c >= '\x0370' && c <= '\x10FC' -> 1
-- | c >= '\x1100' && c <= '\x115F' -> 2
-- | c >= '\x1160' && c <= '\x11A2' -> 1
-- | c >= '\x11A3' && c <= '\x11A7' -> 2
-- | c >= '\x11A8' && c <= '\x11F9' -> 1
-- | c >= '\x11FA' && c <= '\x11FF' -> 2
-- | c >= '\x1200' && c <= '\x2328' -> 1
-- | c >= '\x2329' && c <= '\x232A' -> 2
-- | c >= '\x232B' && c <= '\x2E31' -> 1
-- | c >= '\x2E80' && c <= '\x303E' -> 2
-- | c == '\x303F' -> 1
-- | c >= '\x3041' && c <= '\x3247' -> 2
-- | c >= '\x3248' && c <= '\x324F' -> 1 -- ambiguous
-- | c >= '\x3250' && c <= '\x4DBF' -> 2
-- | c >= '\x4DC0' && c <= '\x4DFF' -> 1
-- | c >= '\x4E00' && c <= '\xA4C6' -> 2
-- | c >= '\xA4D0' && c <= '\xA95F' -> 1
-- | c >= '\xA960' && c <= '\xA97C' -> 2
-- | c >= '\xA980' && c <= '\xABF9' -> 1
-- | c >= '\xAC00' && c <= '\xD7FB' -> 2
-- | c >= '\xD800' && c <= '\xDFFF' -> 1
-- | c >= '\xE000' && c <= '\xF8FF' -> 1 -- ambiguous
-- | c >= '\xF900' && c <= '\xFAFF' -> 2
-- | c >= '\xFB00' && c <= '\xFDFD' -> 1
-- | c >= '\xFE00' && c <= '\xFE0F' -> 1 -- ambiguous
-- | c >= '\xFE10' && c <= '\xFE19' -> 2
-- | c >= '\xFE20' && c <= '\xFE26' -> 1
-- | c >= '\xFE30' && c <= '\xFE6B' -> 2
-- | c >= '\xFE70' && c <= '\xFEFF' -> 1
-- | c >= '\xFF01' && c <= '\xFF60' -> 2
-- | c >= '\xFF61' && c <= '\x16A38' -> 1
-- | c >= '\x1B000' && c <= '\x1B001' -> 2
-- | c >= '\x1D000' && c <= '\x1F1FF' -> 1
-- | c >= '\x1F200' && c <= '\x1F251' -> 2
-- | c >= '\x1F300' && c <= '\x1F773' -> 1
-- | c >= '\x20000' && c <= '\x3FFFD' -> 2
-- | otherwise -> 1
-- | Read a decimal number from a Text. Assumes the input consists only of digit
-- characters.

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@ -0,0 +1 @@
../../examples/bcexample.hledger

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@ -0,0 +1,29 @@
# Record a complicated real-life example. Layout is not perfect, but any
# changes should be noted and evaluated whether they improve things.
$ hledger -f bcexample.hledger bal -t -1 --color=always
>
70.00 GLD
17.00 ITOT
489.957000000000 RGAGX
5716.53 USD
337.26 VACHR
309.950000000000 VBMPX
36.00 VEA
294.00 VHT Assets
-3077.70 USD Equity
52000.00 IRAUSD
260911.70 USD Expenses
-52000.00 IRAUSD
-365071.44 USD
-337.26 VACHR Income
-2891.85 USD Liabilities
--------------------
70.00 GLD
17.00 ITOT
489.957000000000 RGAGX
-104412.76 USD
309.950000000000 VBMPX
36.00 VEA
294.00 VHT
>=0