ptexenc: fix a bug in input_line2() (#100)

texjporg · May 10, 2020 · 0a54dbf · 0a54dbf
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diff --git a/source/texk/ptexenc/ChangeLog b/source/texk/ptexenc/ChangeLog
@@ -1,3 +1,8 @@
+2020-05-10  Hironori Kitagawa  <[email protected]>
+
+	* ptexenc.c: Fix a bug of end of line in input_line2().
+	https://github.com/texjporg/tex-jp-build/issues/100
+
 2020-04-10  Karl Berry  <[email protected]>
 
 	* version.ac: now 1.3.9/dev since TL'19 is released.

diff --git a/source/texk/ptexenc/ptexenc.c b/source/texk/ptexenc/ptexenc.c
@@ -822,7 +822,7 @@ long input_line2(FILE *fp, unsigned char *buff, long pos,
         }
     }
 
-    buffer[last] = '\0';
+    if (i != EOF || first != last) buffer[last] = '\0';
     if (i == EOF || i == '\n' || i == '\r') injis = false;
     if (lastchar != NULL) *lastchar = i;