fix sscanf handling of ends of %s

2 files changed, 11 insertions, 3 deletions

diff --git a/src/library.js b/src/library.js
index b468f3f1..3dbf738d 100644
--- a/src/library.js
+++ b/src/library.js
@@ -2294,7 +2294,7 @@ LibraryManager.library = {
                 (type === 'x' && (next >= '0'.charCodeAt(0) && next <= '9'.charCodeAt(0) ||
                                   next >= 'a'.charCodeAt(0) && next <= 'f'.charCodeAt(0) ||
                                   next >= 'A'.charCodeAt(0) && next <= 'F'.charCodeAt(0))) ||
-                (type === 's') &&
+                (type === 's' && (next != ' '.charCodeAt(0) && next != '\t'.charCodeAt(0) && next != '\n'.charCodeAt(0))) &&
                 (formatIndex >= format.length || next !== format[formatIndex].charCodeAt(0))) { // Stop when we read something that is coming up
               buffer.push(String.fromCharCode(next));
               next = get();
diff --git a/tests/runner.py b/tests/runner.py
index 871230c6..a6e65d20 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -3747,12 +3747,20 @@ at function.:blag
           sscanf("-3.03", "%f", &a);
           printf("%.4f\n", a);
 
+          char buffy[100];
+          sscanf("cheez some thing moar 123\nyet more\n", "cheez %s", buffy);
+          printf("|%s|\n", buffy);
+          sscanf("cheez something\nmoar 123\nyet more\n", "cheez %s", buffy);
+          printf("|%s|\n", buffy);
+          sscanf("cheez somethingmoar\tyet more\n", "cheez %s", buffy);
+          printf("|%s|\n", buffy);
           return 0;
         }
         '''
-      self.do_run(src, 'en-us : 2\nen-r : 99\nen : 3\n1.234567, 0.000000\n-3.0300')
+      self.do_run(src, 'en-us : 2\nen-r : 99\nen : 3\n1.234567, 0.000000\n-3.0300\n|some|\n|something|\n|somethingmoar|')
 
-      # Part 2: doubles
+    def test_sscanf_2(self):
+      # doubles
       if Settings.USE_TYPED_ARRAYS == 2:
         for ftype in ['float', 'double']:
           src = r'''