https://github.com/harningt/luajson/issues/47
https://github.com/harningt/luajson/pull/48
https://github.com/harningt/luajson/pull/49

From 473d61d262a1c86a69ad9b4882352d122e42f3fa Mon Sep 17 00:00:00 2001
From: Josh <jokajak@gmail.com>
Date: Thu, 20 Jul 2023 15:49:33 -0400
Subject: [PATCH] feat: support lpeg 1.1

This changeset adds support for lpeg 1.1 which updated the lpeg.version from a function to a string.

Therefore we have to check the type of the value.

Refs: #47
---
 lua/json/decode/util.lua | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lua/json/decode/util.lua b/lua/json/decode/util.lua
index 2493bf3..8b23751 100644
--- a/lua/json/decode/util.lua
+++ b/lua/json/decode/util.lua
@@ -17,6 +17,8 @@ local table_concat = require("table").concat
 
 local merge = require("json.util").merge
 
+local type = type
+
 local _ENV = nil
 
 local function get_invalid_character_info(input, index)
@@ -94,7 +96,8 @@ local unicode_ignored = (unicode_space + comment)^0
 
 -- Parse the lpeg version skipping patch-values
 -- LPEG <= 0.7 have no version value... so 0.7 is value
-local DecimalLpegVersion = lpeg.version and tonumber(lpeg.version():match("^(%d+%.%d+)")) or 0.7
+-- LPEG >= 1.1 uses a string for the version instead of function
+local DecimalLpegVersion = lpeg.version and tonumber((type(lpeg.version) == "string" and lpeg.version or lpeg.version()):match("^(%d+%.%d+)")) or 0.7
 
 local function setObjectKeyForceNumber(t, key, value)
 	key = tonumber(key) or key

From f23e38fc35cea8db78df124f1bd6d3d56e6c9ab1 Mon Sep 17 00:00:00 2001
From: Josh <jokajak@gmail.com>
Date: Wed, 4 Oct 2023 17:24:30 -0400
Subject: [PATCH] fix: fix lpeg version detection

This changeset fixes the lpeg version detection to properly handle
version > 1.1.

The original fix did not properly parse the string because it search for
the number to start the string instead of being part of the string.

Refs: #47
---
 lua/json/decode/util.lua | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lua/json/decode/util.lua b/lua/json/decode/util.lua
index 8b23751..4815650 100644
--- a/lua/json/decode/util.lua
+++ b/lua/json/decode/util.lua
@@ -97,7 +97,11 @@ local unicode_ignored = (unicode_space + comment)^0
 -- Parse the lpeg version skipping patch-values
 -- LPEG <= 0.7 have no version value... so 0.7 is value
 -- LPEG >= 1.1 uses a string for the version instead of function
-local DecimalLpegVersion = lpeg.version and tonumber((type(lpeg.version) == "string" and lpeg.version or lpeg.version()):match("^(%d+%.%d+)")) or 0.7
+local DecimalLpegVersion = lpeg.version
+		and tonumber(
+			(type(lpeg.version) == "string" and lpeg.version or lpeg.version()):match("(%d+%.%d+)")
+		)
+	or 0.7
 
 local function setObjectKeyForceNumber(t, key, value)
 	key = tonumber(key) or key
