From 7e769bc009ce8ff5eddd2fc78bc76c47a2cf28d7 Mon Sep 17 00:00:00 2001
From: Tom Smeding <tom@tomsmeding.com>
Date: Thu, 22 Jan 2026 21:37:38 +0100
Subject: [PATCH] Document origin coordinates of SourcePos

---
 src/Text/Parsec/Pos.hs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Text/Parsec/Pos.hs b/src/Text/Parsec/Pos.hs
index 02a7b213..9c2b0ef6 100644
--- a/src/Text/Parsec/Pos.hs
+++ b/src/Text/Parsec/Pos.hs
@@ -37,8 +37,8 @@ type Column     = Int
 
 -- | The abstract data type @SourcePos@ represents source positions. It
 -- contains the name of the source (i.e. file name), a line number and
--- a column number. @SourcePos@ is an instance of the 'Show', 'Eq' and
--- 'Ord' class.
+-- a column number. The upper left is (1, 1). @SourcePos@ is an
+-- instance of the 'Show', 'Eq' and 'Ord' class.
 
 data SourcePos  = SourcePos SourceName !Line !Column
     deriving ( Eq, Ord, Data, Typeable)