From 006c86ff14221c4f97baf1960883105381f4337b Mon Sep 17 00:00:00 2001
From: DanielJDufour <daniel.j.dufour@gmail.com>
Date: Fri, 30 Jun 2023 12:53:44 +0200
Subject: [PATCH] parse code from Proj.4 string in any sort order

---
 src/getCodeFromProjString.js | 3 +--
 test.js                      | 3 +++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/getCodeFromProjString.js b/src/getCodeFromProjString.js
index b56e546..305b805 100644
--- a/src/getCodeFromProjString.js
+++ b/src/getCodeFromProjString.js
@@ -1,6 +1,5 @@
 function getCodeFromProjString(proj) {
-  if (proj.startsWith("+proj=utm") && proj.includes("+zone=")) {
-    // replace any accidental double spaces
+  if (proj.includes("+proj=utm") && proj.includes("+zone=")) {
     const parts = proj.split(" ");
     const zone = parts.find(part => part.startsWith("+zone=")).split("=")[1];
     const south = proj.includes("+south");
diff --git a/test.js b/test.js
index 0915976..7932a62 100644
--- a/test.js
+++ b/test.js
@@ -31,6 +31,9 @@ test("getCodeFromProjString", ({ eq }) => {
   eq(getCodeFromProjString("+proj=utm +zone=17 +ellps=WGS84 +datum=WGS84 +units=m +no_defs"), 32617);
   eq(getCodeFromProjString("+proj=utm +zone=18 +south +ellps=WGS84 +datum=WGS84 +units=m +no_defs"), 32718);
   eq(getCodeFromProjString("+proj=utm +zone=18 +ellps=WGS84 +datum=WGS84 +units=m +no_defs"), 32618);
+  eq(getCodeFromProjString("+proj=utm +zone=17 +datum=WGS84 +units=m +no_defs"), 32617);
+  eq(getCodeFromProjString("+proj=utm +zone=17 +datum=WGS84 +units=m"), 32617);
+  eq(getCodeFromProjString("+datum=WGS84 +proj=utm +units=m +zone=17"), 32617);
 });
 
 test("isUTM", ({ eq }) => {