diff options
| author | Eugen Wissner <belka@caraus.de> | 2023-11-19 09:42:29 +0100 |
|---|---|---|
| committer | Eugen Wissner <belka@caraus.de> | 2023-11-19 09:42:29 +0100 |
| commit | cda2a2a446f16f1238ed5e145b3ad2f8aaaba88e (patch) | |
| tree | 9244f41fce072603b9b41d6e77f2cdab21f2810e /src/Graphics/Fountainhead/Parser.hs | |
| parent | 9a11ff5dd465cef33317ef6cc858f861956ade55 (diff) | |
| download | fountainhead-cda2a2a446f16f1238ed5e145b3ad2f8aaaba88e.tar.gz | |
Dump the loca table
Diffstat (limited to 'src/Graphics/Fountainhead/Parser.hs')
| -rw-r--r-- | src/Graphics/Fountainhead/Parser.hs | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/Graphics/Fountainhead/Parser.hs b/src/Graphics/Fountainhead/Parser.hs index 96209f7..209faa2 100644 --- a/src/Graphics/Fountainhead/Parser.hs +++ b/src/Graphics/Fountainhead/Parser.hs @@ -23,6 +23,7 @@ module Graphics.Fountainhead.Parser , headTableP , hheaTableP , hmtxTableP + , locaTableP , longDateTimeP , longLocaTableP , maxpTableP @@ -107,6 +108,7 @@ import Graphics.Fountainhead.TrueType , HeadTable(..) , HheaTable(..) , HmtxTable(..) + , IndexToLocFormat(..) , LocaTable(..) , LongHorMetric(..) , MaxpTable(..) @@ -293,9 +295,17 @@ headTableP = HeadTable <*> fontStyleP <*> Megaparsec.Binary.word16be <*> fontDirectionHintP - <*> Megaparsec.Binary.word16be + <*> indexToLocFormatP <*> Megaparsec.Binary.word16be <* Megaparsec.eof + where + indexToLocFormatP = do + indexToLocFormat' <- Megaparsec.Binary.int16be + case indexToLocFormat' of + 0 -> pure ShortOffsetIndexToLocFormat + 1 -> pure LongOffsetIndexToLocFormat + _ -> fail $ "Unknown loca table format indexToLocFormat: " + <> show indexToLocFormat' fontStyleP :: Parser FontStyle fontStyleP = go <$> Megaparsec.Binary.word16be @@ -330,6 +340,10 @@ shortLocaTableP = ShortLocaTable <$> vectorP Megaparsec.Binary.word16be <?> "loca table, short version" +locaTableP :: IndexToLocFormat -> Parser LocaTable +locaTableP ShortOffsetIndexToLocFormat = shortLocaTableP +locaTableP LongOffsetIndexToLocFormat = longLocaTableP + -- * Horizontal metrics table longHorMetricP :: Parser LongHorMetric @@ -587,9 +601,8 @@ simpleGlyphDefinitionP numberOfContours' = do , thisXIsSame = testBit flag 4 , thisYIsSame = testBit flag 5 } - repeat = testBit flag 3 repeatN <- - if repeat + if testBit flag 3 then (1 +) . fromIntegral <$> Megaparsec.Binary.word8 |