From c27ce1e70e72302d6cdc05ad59f45d0d04bda363 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Tue, 14 Aug 2018 00:03:55 -0700
Subject: LaTeX reader: handle parameter patterns for `\def`.

For example:  `\def\foo#1[#2]{#1 and #2}`.

Closes #4768.  Also fixes #4771.

API change:  in Text.Pandoc.Readers.LaTeX.Types,
new type ArgSpec added.  Second parameter of Macro
constructor is now `[ArgSpec]` instead of `Int`.
---
 src/Text/Pandoc/Readers/LaTeX/Types.hs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/Text/Pandoc/Readers/LaTeX')

diff --git a/src/Text/Pandoc/Readers/LaTeX/Types.hs b/src/Text/Pandoc/Readers/LaTeX/Types.hs
index fa832114b..e3a302d49 100644
--- a/src/Text/Pandoc/Readers/LaTeX/Types.hs
+++ b/src/Text/Pandoc/Readers/LaTeX/Types.hs
@@ -31,6 +31,7 @@ Types for LaTeX tokens and macros.
 module Text.Pandoc.Readers.LaTeX.Types ( Tok(..)
                                        , TokType(..)
                                        , Macro(..)
+                                       , ArgSpec(..)
                                        , ExpansionPoint(..)
                                        , SourcePos
                                        )
@@ -49,5 +50,8 @@ data Tok = Tok SourcePos TokType Text
 data ExpansionPoint = ExpandWhenDefined | ExpandWhenUsed
      deriving (Eq, Ord, Show)
 
-data Macro = Macro ExpansionPoint Int (Maybe [Tok]) [Tok]
+data Macro = Macro ExpansionPoint [ArgSpec] (Maybe [Tok]) [Tok]
+     deriving Show
+
+data ArgSpec = ArgNum Int | Pattern [Tok]
      deriving Show
-- 
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