# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1709594115 -3600
# Node ID e0f251ba3681bbb2c0f589bb15cbcb4e8ceb71f0
# Parent  05541dabc5ad72e4afb759521f516d693304fb43
Fixed end-of-file handling at the end of the selected region.

diff -r 05541dabc5ad -r e0f251ba3681 test_files/programs/clip.c
--- a/test_files/programs/clip.c	Mon Mar 04 22:32:42 2024 +0100
+++ b/test_files/programs/clip.c	Tue Mar 05 00:15:15 2024 +0100
@@ -148,13 +148,25 @@
 
   while (lineno < startline + numlines)
   {
+    /* Read a line, updating the current line number. */
+
     if (!readline(file, &lineno, &start, &end))
     {
+      /* If the last line was passed, an empty line is an acceptable end-of-file
+         condition. */
+
+      if (lineno >= startline + numlines)
+        break;
+
+      /* Otherwise, indicate that end-of-file occurred. */
+
       _fprintf(output, "EOF error at line %d.\n", lineno);
       client_flush(output);
       return 1;
     }
 
+    /* Emit line content while within the desired range of lines. */
+
     if ((lineno >= startline) && (lineno < startline + numlines))
       client_write(output, start, end - start);
   }