From 2faa57e8e96d9905676e30f62d34c06b074acf76 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Sun, 28 Feb 2021 09:12:09 -0800
Subject: Factor out T.P.Readers.LaTeX.Citation.
---
src/Text/Pandoc/Readers/LaTeX.hs | 202 +++-------------------------
src/Text/Pandoc/Readers/LaTeX/Citation.hs | 210 ++++++++++++++++++++++++++++++
src/Text/Pandoc/Readers/LaTeX/Parsing.hs | 5 +
3 files changed, 231 insertions(+), 186 deletions(-)
create mode 100644 src/Text/Pandoc/Readers/LaTeX/Citation.hs
(limited to 'src')
diff --git a/src/Text/Pandoc/Readers/LaTeX.hs b/src/Text/Pandoc/Readers/LaTeX.hs
index 831c5df05..2d1b83486 100644
--- a/src/Text/Pandoc/Readers/LaTeX.hs
+++ b/src/Text/Pandoc/Readers/LaTeX.hs
@@ -56,6 +56,7 @@ import Text.Pandoc.Readers.LaTeX.Types (ExpansionPoint (..), Macro (..),
ArgSpec (..), Tok (..), TokType (..))
import Text.Pandoc.Readers.LaTeX.Parsing
import Text.Pandoc.Readers.LaTeX.Accent (accentCommands)
+import Text.Pandoc.Readers.LaTeX.Citation (citationCommands, cites)
import Text.Pandoc.Readers.LaTeX.Table (tableEnvironments)
import Text.Pandoc.Readers.LaTeX.Lang (polyglossiaLangToBCP47,
babelLangToBCP47)
@@ -169,7 +170,7 @@ rawLaTeXInline = do
let toks = tokenize "source" inp
raw <- snd <$>
( rawLaTeXParser toks True
- (mempty <$ (controlSeq "input" >> skipMany opt >> braced))
+ (mempty <$ (controlSeq "input" >> skipMany rawopt >> braced))
inlines
<|> rawLaTeXParser toks True (inlineEnvironment <|> inlineCommand')
inlines
@@ -311,7 +312,7 @@ blockquote :: PandocMonad m => Bool -> Maybe Text -> LP m Blocks
blockquote cvariant mblang = do
citepar <- if cvariant
then (\xs -> para (cite xs mempty))
- <$> cites NormalCitation False
+ <$> cites inline NormalCitation False
else option mempty $ para <$> bracketed inline
let lang = mblang >>= babelLangToBCP47
let langdiv = case lang of
@@ -425,116 +426,6 @@ pDollarsMath n = do
else mzero
_ -> (tk :) <$> pDollarsMath n
--- citations
-
-addPrefix :: [Inline] -> [Citation] -> [Citation]
-addPrefix p (k:ks) = k {citationPrefix = p ++ citationPrefix k} : ks
-addPrefix _ _ = []
-
-addSuffix :: [Inline] -> [Citation] -> [Citation]
-addSuffix s ks@(_:_) =
- let k = last ks
- in init ks ++ [k {citationSuffix = citationSuffix k ++ s}]
-addSuffix _ _ = []
-
-simpleCiteArgs :: PandocMonad m => LP m [Citation]
-simpleCiteArgs = try $ do
- first <- optionMaybe $ toList <$> opt
- second <- optionMaybe $ toList <$> opt
- keys <- try $ bgroup *> manyTill citationLabel egroup
- let (pre, suf) = case (first , second ) of
- (Just s , Nothing) -> (mempty, s )
- (Just s , Just t ) -> (s , t )
- _ -> (mempty, mempty)
- conv k = Citation { citationId = k
- , citationPrefix = []
- , citationSuffix = []
- , citationMode = NormalCitation
- , citationHash = 0
- , citationNoteNum = 0
- }
- return $ addPrefix pre $ addSuffix suf $ map conv keys
-
-citationLabel :: PandocMonad m => LP m Text
-citationLabel = do
- sp
- untokenize <$>
- (many1 (satisfyTok isWordTok <|> symbolIn bibtexKeyChar)
- <* sp
- <* optional (symbol ',')
- <* sp)
- where bibtexKeyChar = ".:;?!`'()/*@_+=-&[]" :: [Char]
-
-cites :: PandocMonad m => CitationMode -> Bool -> LP m [Citation]
-cites mode multi = try $ do
- cits <- if multi
- then do
- multiprenote <- optionMaybe $ toList <$> paropt
- multipostnote <- optionMaybe $ toList <$> paropt
- let (pre, suf) = case (multiprenote, multipostnote) of
- (Just s , Nothing) -> (mempty, s)
- (Nothing , Just t) -> (mempty, t)
- (Just s , Just t ) -> (s, t)
- _ -> (mempty, mempty)
- tempCits <- many1 simpleCiteArgs
- case tempCits of
- (k:ks) -> case ks of
- (_:_) -> return $ (addMprenote pre k : init ks) ++
- [addMpostnote suf (last ks)]
- _ -> return [addMprenote pre (addMpostnote suf k)]
- _ -> return [[]]
- else count 1 simpleCiteArgs
- let cs = concat cits
- return $ case mode of
- AuthorInText -> case cs of
- (c:rest) -> c {citationMode = mode} : rest
- [] -> []
- _ -> map (\a -> a {citationMode = mode}) cs
- where mprenote (k:ks) = (k:ks) ++ [Space]
- mprenote _ = mempty
- mpostnote (k:ks) = [Str ",", Space] ++ (k:ks)
- mpostnote _ = mempty
- addMprenote mpn (k:ks) =
- let mpnfinal = case citationPrefix k of
- (_:_) -> mprenote mpn
- _ -> mpn
- in addPrefix mpnfinal (k:ks)
- addMprenote _ _ = []
- addMpostnote = addSuffix . mpostnote
-
-citation :: PandocMonad m => Text -> CitationMode -> Bool -> LP m Inlines
-citation name mode multi = do
- (c,raw) <- withRaw $ cites mode multi
- return $ cite c (rawInline "latex" $ "\\" <> name <> untokenize raw)
-
-handleCitationPart :: Inlines -> [Citation]
-handleCitationPart ils =
- let isCite Cite{} = True
- isCite _ = False
- (pref, rest) = break isCite (toList ils)
- in case rest of
- (Cite cs _:suff) -> addPrefix pref $ addSuffix suff cs
- _ -> []
-
-complexNatbibCitation :: PandocMonad m => CitationMode -> LP m Inlines
-complexNatbibCitation mode = try $ do
- (cs, raw) <-
- withRaw $ concat <$> do
- bgroup
- items <- mconcat <$>
- many1 (notFollowedBy (symbol ';') >> inline)
- `sepBy1` symbol ';'
- egroup
- return $ map handleCitationPart items
- case cs of
- [] -> mzero
- (c:cits) -> return $ cite (c{ citationMode = mode }:cits)
- (rawInline "latex" $ "\\citetext" <> untokenize raw)
-
-inNote :: Inlines -> Inlines
-inNote ils =
- note $ para $ ils <> str "."
-
inlineCommand' :: PandocMonad m => LP m Inlines
inlineCommand' = try $ do
Tok _ (CtrlSeq name) cmd <- anyControlSeq
@@ -553,19 +444,6 @@ inlineCommand' = try $ do
tok :: PandocMonad m => LP m Inlines
tok = tokWith inline
-opt :: PandocMonad m => LP m Inlines
-opt = do
- toks <- try (sp *> bracketedToks <* sp)
- -- now parse the toks as inlines
- st <- getState
- parsed <- runParserT (mconcat <$> many inline) st "bracketed option" toks
- case parsed of
- Right result -> return result
- Left e -> throwError $ PandocParsecError (untokenize toks) e
-
-paropt :: PandocMonad m => LP m Inlines
-paropt = parenWrapped inline
-
inBrackets :: Inlines -> Inlines
inBrackets x = str "[" <> x <> str "]"
@@ -629,6 +507,7 @@ inlineCommands :: PandocMonad m => M.Map Text (LP m Inlines)
inlineCommands =
M.union inlineLanguageCommands $
M.union (accentCommands tok) $
+ M.union (citationCommands inline) $
M.fromList
[ ("emph", extractSpaces emph <$> tok)
, ("textit", extractSpaces emph <$> tok)
@@ -703,7 +582,7 @@ inlineCommands =
, ("/", pure mempty) -- italic correction
, ("\\", linebreak <$ (do inTableCell <- sInTableCell <$> getState
guard $ not inTableCell
- optional opt
+ optional rawopt
spaces))
, (",", lit "\8198")
, ("@", pure mempty)
@@ -761,61 +640,6 @@ inlineCommands =
, ("proofname", doTerm Translations.Proof)
, ("glossaryname", doTerm Translations.Glossary)
, ("lstlistingname", doTerm Translations.Listing)
- , ("cite", citation "cite" NormalCitation False)
- , ("Cite", citation "Cite" NormalCitation False)
- , ("citep", citation "citep" NormalCitation False)
- , ("citep*", citation "citep*" NormalCitation False)
- , ("citeal", citation "citeal" NormalCitation False)
- , ("citealp", citation "citealp" NormalCitation False)
- , ("citealp*", citation "citealp*" NormalCitation False)
- , ("autocite", citation "autocite" NormalCitation False)
- , ("smartcite", citation "smartcite" NormalCitation False)
- , ("footcite", inNote <$> citation "footcite" NormalCitation False)
- , ("parencite", citation "parencite" NormalCitation False)
- , ("supercite", citation "supercite" NormalCitation False)
- , ("footcitetext", inNote <$> citation "footcitetext" NormalCitation False)
- , ("citeyearpar", citation "citeyearpar" SuppressAuthor False)
- , ("citeyear", citation "citeyear" SuppressAuthor False)
- , ("autocite*", citation "autocite*" SuppressAuthor False)
- , ("cite*", citation "cite*" SuppressAuthor False)
- , ("parencite*", citation "parencite*" SuppressAuthor False)
- , ("textcite", citation "textcite" AuthorInText False)
- , ("citet", citation "citet" AuthorInText False)
- , ("citet*", citation "citet*" AuthorInText False)
- , ("citealt", citation "citealt" AuthorInText False)
- , ("citealt*", citation "citealt*" AuthorInText False)
- , ("textcites", citation "textcites" AuthorInText True)
- , ("cites", citation "cites" NormalCitation True)
- , ("autocites", citation "autocites" NormalCitation True)
- , ("footcites", inNote <$> citation "footcites" NormalCitation True)
- , ("parencites", citation "parencites" NormalCitation True)
- , ("supercites", citation "supercites" NormalCitation True)
- , ("footcitetexts", inNote <$> citation "footcitetexts" NormalCitation True)
- , ("Autocite", citation "Autocite" NormalCitation False)
- , ("Smartcite", citation "Smartcite" NormalCitation False)
- , ("Footcite", inNote <$> citation "Footcite" NormalCitation False)
- , ("Parencite", citation "Parencite" NormalCitation False)
- , ("Supercite", citation "Supercite" NormalCitation False)
- , ("Footcitetext", inNote <$> citation "Footcitetext" NormalCitation False)
- , ("Citeyearpar", citation "Citeyearpar" SuppressAuthor False)
- , ("Citeyear", citation "Citeyear" SuppressAuthor False)
- , ("Autocite*", citation "Autocite*" SuppressAuthor False)
- , ("Cite*", citation "Cite*" SuppressAuthor False)
- , ("Parencite*", citation "Parencite*" SuppressAuthor False)
- , ("Textcite", citation "Textcite" AuthorInText False)
- , ("Textcites", citation "Textcites" AuthorInText True)
- , ("Cites", citation "Cites" NormalCitation True)
- , ("Autocites", citation "Autocites" NormalCitation True)
- , ("Footcites", inNote <$> citation "Footcites" NormalCitation True)
- , ("Parencites", citation "Parencites" NormalCitation True)
- , ("Supercites", citation "Supercites" NormalCitation True)
- , ("Footcitetexts", inNote <$> citation "Footcitetexts" NormalCitation True)
- , ("citetext", complexNatbibCitation NormalCitation)
- , ("citeauthor", (try (tok *> sp *> controlSeq "citetext") *>
- complexNatbibCitation AuthorInText)
- <|> citation "citeauthor" AuthorInText False)
- , ("nocite", mempty <$ (citation "nocite" NormalCitation False >>=
- addMeta "nocite"))
, ("hyperlink", hyperlink)
, ("hypertarget", hypertargetInline)
-- glossaries package
@@ -918,7 +742,7 @@ inlineCommands =
lettrine :: PandocMonad m => LP m Inlines
lettrine = do
- optional opt
+ optional rawopt
x <- tok
y <- tok
return $ extractSpaces (spanWith ("",["lettrine"],[])) x <> smallcaps y
@@ -1168,6 +992,16 @@ inline = (mempty <$ comment)
inlines :: PandocMonad m => LP m Inlines
inlines = mconcat <$> many inline
+opt :: PandocMonad m => LP m Inlines
+opt = do
+ toks <- try (sp *> bracketedToks <* sp)
+ -- now parse the toks as inlines
+ st <- getState
+ parsed <- runParserT (mconcat <$> many inline) st "bracketed option" toks
+ case parsed of
+ Right result -> return result
+ Left e -> throwError $ PandocParsecError (untokenize toks) e
+
-- block elements:
preamble :: PandocMonad m => LP m Blocks
@@ -1261,10 +1095,6 @@ insertIncluded defaultExtension f' = do
getInput >>= setInput . (tokenize f contents ++)
updateState dropLatestIncludeFile
-addMeta :: PandocMonad m => ToMetaValue a => Text -> a -> LP m ()
-addMeta field val = updateState $ \st ->
- st{ sMeta = addMetaField field val $ sMeta st }
-
authors :: PandocMonad m => LP m ()
authors = try $ do
bgroup
diff --git a/src/Text/Pandoc/Readers/LaTeX/Citation.hs b/src/Text/Pandoc/Readers/LaTeX/Citation.hs
new file mode 100644
index 000000000..655823dab
--- /dev/null
+++ b/src/Text/Pandoc/Readers/LaTeX/Citation.hs
@@ -0,0 +1,210 @@
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE OverloadedStrings #-}
+module Text.Pandoc.Readers.LaTeX.Citation
+ ( citationCommands
+ , cites
+ )
+where
+
+import Text.Pandoc.Class
+import Text.Pandoc.Readers.LaTeX.Parsing
+import Text.Pandoc.Builder as B
+import qualified Data.Map as M
+import Data.Text (Text)
+import Control.Applicative ((<|>), optional, many)
+import Control.Monad (mzero)
+import Control.Monad.Trans (lift)
+import Control.Monad.Except (throwError)
+import Text.Pandoc.Error (PandocError(PandocParsecError))
+import Text.Pandoc.Parsing hiding (blankline, many, mathDisplay, mathInline,
+ optional, space, spaces, withRaw, (<|>))
+
+citationCommands :: PandocMonad m => LP m Inlines -> M.Map Text (LP m Inlines)
+citationCommands inline =
+ let citation = citationWith inline
+ tok = spaces *> grouped inline
+ in M.fromList
+ [ ("cite", citation "cite" NormalCitation False)
+ , ("Cite", citation "Cite" NormalCitation False)
+ , ("citep", citation "citep" NormalCitation False)
+ , ("citep*", citation "citep*" NormalCitation False)
+ , ("citeal", citation "citeal" NormalCitation False)
+ , ("citealp", citation "citealp" NormalCitation False)
+ , ("citealp*", citation "citealp*" NormalCitation False)
+ , ("autocite", citation "autocite" NormalCitation False)
+ , ("smartcite", citation "smartcite" NormalCitation False)
+ , ("footcite", inNote <$> citation "footcite" NormalCitation False)
+ , ("parencite", citation "parencite" NormalCitation False)
+ , ("supercite", citation "supercite" NormalCitation False)
+ , ("footcitetext", inNote <$> citation "footcitetext" NormalCitation False)
+ , ("citeyearpar", citation "citeyearpar" SuppressAuthor False)
+ , ("citeyear", citation "citeyear" SuppressAuthor False)
+ , ("autocite*", citation "autocite*" SuppressAuthor False)
+ , ("cite*", citation "cite*" SuppressAuthor False)
+ , ("parencite*", citation "parencite*" SuppressAuthor False)
+ , ("textcite", citation "textcite" AuthorInText False)
+ , ("citet", citation "citet" AuthorInText False)
+ , ("citet*", citation "citet*" AuthorInText False)
+ , ("citealt", citation "citealt" AuthorInText False)
+ , ("citealt*", citation "citealt*" AuthorInText False)
+ , ("textcites", citation "textcites" AuthorInText True)
+ , ("cites", citation "cites" NormalCitation True)
+ , ("autocites", citation "autocites" NormalCitation True)
+ , ("footcites", inNote <$> citation "footcites" NormalCitation True)
+ , ("parencites", citation "parencites" NormalCitation True)
+ , ("supercites", citation "supercites" NormalCitation True)
+ , ("footcitetexts", inNote <$> citation "footcitetexts" NormalCitation True)
+ , ("Autocite", citation "Autocite" NormalCitation False)
+ , ("Smartcite", citation "Smartcite" NormalCitation False)
+ , ("Footcite", inNote <$> citation "Footcite" NormalCitation False)
+ , ("Parencite", citation "Parencite" NormalCitation False)
+ , ("Supercite", citation "Supercite" NormalCitation False)
+ , ("Footcitetext", inNote <$> citation "Footcitetext" NormalCitation False)
+ , ("Citeyearpar", citation "Citeyearpar" SuppressAuthor False)
+ , ("Citeyear", citation "Citeyear" SuppressAuthor False)
+ , ("Autocite*", citation "Autocite*" SuppressAuthor False)
+ , ("Cite*", citation "Cite*" SuppressAuthor False)
+ , ("Parencite*", citation "Parencite*" SuppressAuthor False)
+ , ("Textcite", citation "Textcite" AuthorInText False)
+ , ("Textcites", citation "Textcites" AuthorInText True)
+ , ("Cites", citation "Cites" NormalCitation True)
+ , ("Autocites", citation "Autocites" NormalCitation True)
+ , ("Footcites", inNote <$> citation "Footcites" NormalCitation True)
+ , ("Parencites", citation "Parencites" NormalCitation True)
+ , ("Supercites", citation "Supercites" NormalCitation True)
+ , ("Footcitetexts", inNote <$> citation "Footcitetexts" NormalCitation True)
+ , ("citetext", complexNatbibCitation inline NormalCitation)
+ , ("citeauthor", (try (tok *> sp *> controlSeq "citetext") *>
+ complexNatbibCitation inline AuthorInText)
+ <|> citation "citeauthor" AuthorInText False)
+ , ("nocite", mempty <$ (citation "nocite" NormalCitation False >>=
+ addMeta "nocite"))
+ ]
+
+-- citations
+
+addPrefix :: [Inline] -> [Citation] -> [Citation]
+addPrefix p (k:ks) = k {citationPrefix = p ++ citationPrefix k} : ks
+addPrefix _ _ = []
+
+addSuffix :: [Inline] -> [Citation] -> [Citation]
+addSuffix s ks@(_:_) =
+ let k = last ks
+ in init ks ++ [k {citationSuffix = citationSuffix k ++ s}]
+addSuffix _ _ = []
+
+simpleCiteArgs :: forall m . PandocMonad m => LP m Inlines -> LP m [Citation]
+simpleCiteArgs inline = try $ do
+ first <- optionMaybe $ toList <$> opt
+ second <- optionMaybe $ toList <$> opt
+ keys <- try $ bgroup *> manyTill citationLabel egroup
+ let (pre, suf) = case (first , second ) of
+ (Just s , Nothing) -> (mempty, s )
+ (Just s , Just t ) -> (s , t )
+ _ -> (mempty, mempty)
+ conv k = Citation { citationId = k
+ , citationPrefix = []
+ , citationSuffix = []
+ , citationMode = NormalCitation
+ , citationHash = 0
+ , citationNoteNum = 0
+ }
+ return $ addPrefix pre $ addSuffix suf $ map conv keys
+ where
+ opt :: PandocMonad m => LP m Inlines
+ opt = do
+ toks <- try (sp *> bracketedToks <* sp)
+ -- now parse the toks as inlines
+ st <- getState
+ parsed <- lift $
+ runParserT (mconcat <$> many inline) st "bracketed option" toks
+ case parsed of
+ Right result -> return result
+ Left e -> throwError $ PandocParsecError (untokenize toks) e
+
+
+
+citationLabel :: PandocMonad m => LP m Text
+citationLabel = do
+ sp
+ untokenize <$>
+ (many1 (satisfyTok isWordTok <|> symbolIn bibtexKeyChar)
+ <* sp
+ <* optional (symbol ',')
+ <* sp)
+ where bibtexKeyChar = ".:;?!`'()/*@_+=-&[]" :: [Char]
+
+cites :: PandocMonad m
+ => LP m Inlines -> CitationMode -> Bool -> LP m [Citation]
+cites inline mode multi = try $ do
+ let paropt = parenWrapped inline
+ cits <- if multi
+ then do
+ multiprenote <- optionMaybe $ toList <$> paropt
+ multipostnote <- optionMaybe $ toList <$> paropt
+ let (pre, suf) = case (multiprenote, multipostnote) of
+ (Just s , Nothing) -> (mempty, s)
+ (Nothing , Just t) -> (mempty, t)
+ (Just s , Just t ) -> (s, t)
+ _ -> (mempty, mempty)
+ tempCits <- many1 $ simpleCiteArgs inline
+ case tempCits of
+ (k:ks) -> case ks of
+ (_:_) -> return $ (addMprenote pre k : init ks) ++
+ [addMpostnote suf (last ks)]
+ _ -> return [addMprenote pre (addMpostnote suf k)]
+ _ -> return [[]]
+ else count 1 $ simpleCiteArgs inline
+ let cs = concat cits
+ return $ case mode of
+ AuthorInText -> case cs of
+ (c:rest) -> c {citationMode = mode} : rest
+ [] -> []
+ _ -> map (\a -> a {citationMode = mode}) cs
+ where mprenote (k:ks) = (k:ks) ++ [Space]
+ mprenote _ = mempty
+ mpostnote (k:ks) = [Str ",", Space] ++ (k:ks)
+ mpostnote _ = mempty
+ addMprenote mpn (k:ks) =
+ let mpnfinal = case citationPrefix k of
+ (_:_) -> mprenote mpn
+ _ -> mpn
+ in addPrefix mpnfinal (k:ks)
+ addMprenote _ _ = []
+ addMpostnote = addSuffix . mpostnote
+
+citationWith :: PandocMonad m
+ => LP m Inlines -> Text -> CitationMode -> Bool -> LP m Inlines
+citationWith inline name mode multi = do
+ (c,raw) <- withRaw $ cites inline mode multi
+ return $ cite c (rawInline "latex" $ "\\" <> name <> untokenize raw)
+
+handleCitationPart :: Inlines -> [Citation]
+handleCitationPart ils =
+ let isCite Cite{} = True
+ isCite _ = False
+ (pref, rest) = break isCite (toList ils)
+ in case rest of
+ (Cite cs _:suff) -> addPrefix pref $ addSuffix suff cs
+ _ -> []
+
+complexNatbibCitation :: PandocMonad m
+ => LP m Inlines -> CitationMode -> LP m Inlines
+complexNatbibCitation inline mode = try $ do
+ (cs, raw) <-
+ withRaw $ concat <$> do
+ bgroup
+ items <- mconcat <$>
+ many1 (notFollowedBy (symbol ';') >> inline)
+ `sepBy1` symbol ';'
+ egroup
+ return $ map handleCitationPart items
+ case cs of
+ [] -> mzero
+ (c:cits) -> return $ cite (c{ citationMode = mode }:cits)
+ (rawInline "latex" $ "\\citetext" <> untokenize raw)
+
+inNote :: Inlines -> Inlines
+inNote ils =
+ note $ para $ ils <> str "."
+
diff --git a/src/Text/Pandoc/Readers/LaTeX/Parsing.hs b/src/Text/Pandoc/Readers/LaTeX/Parsing.hs
index 4a9fa03ad..a5a39d3c9 100644
--- a/src/Text/Pandoc/Readers/LaTeX/Parsing.hs
+++ b/src/Text/Pandoc/Readers/LaTeX/Parsing.hs
@@ -85,6 +85,7 @@ module Text.Pandoc.Readers.LaTeX.Parsing
, setCaption
, resetCaption
, env
+ , addMeta
) where
import Control.Applicative (many, (<|>))
@@ -947,3 +948,7 @@ tokWith inlineParser = try $ spaces >>
where singleChar' = do
Tok _ _ t <- singleChar
return $ str t
+
+addMeta :: PandocMonad m => ToMetaValue a => Text -> a -> LP m ()
+addMeta field val = updateState $ \st ->
+ st{ sMeta = addMetaField field val $ sMeta st }
--
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