coreutils/coreutils-6.10-lonebackslash.patch

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diff -urNp coreutils-6.10-orig/src/paste.c coreutils-6.10/src/paste.c
--- coreutils-6.10-orig/src/paste.c 2007-11-25 14:23:31.000000000 +0100
+++ coreutils-6.10/src/paste.c 2008-03-27 14:47:02.000000000 +0100
@@ -42,6 +42,7 @@
#include <sys/types.h>
#include "system.h"
#include "error.h"
+#include "quotearg.h"
/* The official name of this program (e.g., no `g' prefix). */
#define PROGRAM_NAME "paste"
@@ -79,12 +80,17 @@ static struct option const longopts[] =
/* Set globals delims and delim_end. Copy STRPTR to DELIMS, converting
backslash representations of special characters in STRPTR to their actual
values. The set of possible backslash characters has been expanded beyond
- that recognized by the Unix version. */
+ that recognized by the Unix version.
+ Return 0 upon success.
+ If the string ends in an odd number of backslashes, ignore the
+ final backslash and return nonzero. */
-static void
+static int
collapse_escapes (char const *strptr)
{
char *strout = xstrdup (strptr);
+ bool backslash_at_end = false;
+
delims = strout;
while (*strptr)
@@ -123,6 +129,15 @@ collapse_escapes (char const *strptr)
*strout++ = '\v';
break;
+ case '\\':
+ *strout++ = '\\';
+ break;
+
+ case '\0':
+ backslash_at_end = true;
+ goto done;
+
+
default:
*strout++ = *strptr;
break;
@@ -130,7 +145,11 @@ collapse_escapes (char const *strptr)
strptr++;
}
}
+
+ done:;
+
delim_end = strout;
+ return backslash_at_end ? 1 : 0;
}
/* Report a write error and exit. */
@@ -481,7 +500,15 @@ main (int argc, char **argv)
if (optind == argc)
argv[argc++] = "-";
- collapse_escapes (delim_arg);
+ if (collapse_escapes (delim_arg))
+ {
+ /* Don't use the default quoting style, because that would double the
+ number of displayed backslashes, making the diagnostic look bogus. */
+ set_quoting_style (NULL, escape_quoting_style);
+ error (EXIT_FAILURE, 0,
+ _("delimiter list ends with an unescaped backslash: %s"),
+ quotearg_colon (delim_arg));
+ }
if (!serial_merge)
ok = paste_parallel (argc - optind, &argv[optind]);
diff -urNp coreutils-6.10-orig/src/ptx.c coreutils-6.10/src/ptx.c
--- coreutils-6.10-orig/src/ptx.c 2007-11-25 14:23:31.000000000 +0100
+++ coreutils-6.10/src/ptx.c 2008-03-27 14:53:24.000000000 +0100
@@ -387,6 +387,11 @@ copy_unescaped_string (const char *strin
string++;
break;
+ case '\0': /* lone backslash at end of string */
+ /* ignore it */
+ break;
+
+
default:
*cursor++ = '\\';
*cursor++ = *string++;