toplev.c (display_help): Fix thinko in documentation.

	* toplev.c (display_help): Fix thinko in documentation.

	* diagnostic.h (output_buffer::indent_skip): New fields.
	(output_indentation): New macro.

	* diagnostic.c (output_indent): New function.
	(output_set_prefix, clear_diagnostic_info): Use.
	(output_emit_prefix): Predict future indentation.

From-SVN: r36205

gcc/ChangeLog

+2000-09-06  Gabriel Dos Reis  <gdr@codesourcery.com>
+
+	* toplev.c (display_help): Fix thinko in documentation.
+
+	* diagnostic.h (output_buffer::indent_skip): New fields.
+	(output_indentation): New macro.
+
+	* diagnostic.c (output_indent): New function.
+	(output_set_prefix, clear_diagnostic_info): Use.
+	(output_emit_prefix): Predict future indentation.
+
 2000-09-06  DJ Delorie  <dj@redhat.com>
 
 	* Makefile.in (stage_*): add more dependencies to ensure parallel

gcc/diagnostic.c

@@ -67,6 +67,7 @@ static void output_do_verbatim PARAMS ((output_buffer *,
                                         const char *, va_list *));
 static void output_to_stream PARAMS ((output_buffer *, FILE *));
 static void output_format PARAMS ((output_buffer *));
+static void output_indent PARAMS ((output_buffer *));
 
 static char *vbuild_message_string PARAMS ((const char *, va_list));
 static char *build_message_string PARAMS ((const char *, ...))
@@ -267,6 +268,7 @@ output_set_prefix (buffer, prefix)
   output_prefix (buffer) = prefix;
   set_real_maximum_length (buffer);
   prefix_was_emitted_for (buffer) = 0;
+  output_indentation (buffer) = 0;
 }
 
 /* Free BUFFER's prefix, a previously malloc'd string.  */
@@ -301,6 +303,7 @@ clear_diagnostic_info (buffer)
   output_buffer_text_cursor (buffer) = NULL;
   output_buffer_ptr_to_format_args (buffer) = NULL;
   prefix_was_emitted_for (buffer) = 0;
+  output_indentation (buffer) = 0;
 }
 
 /* Construct an output BUFFER with PREFIX and of MAXIMUM_LENGTH
@@ -395,8 +398,12 @@ output_emit_prefix (buffer)
 
         case DIAGNOSTICS_SHOW_PREFIX_ONCE:
           if (prefix_was_emitted_for (buffer))
-            break;
-          /* Else fall through.  */
+            {
+              output_indent (buffer);
+              break;
+            }
+          output_indentation (buffer) += 3;          
+          /* Fall through.  */
 
         case DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE:
           {
@@ -549,6 +556,17 @@ output_append (buffer, start, end)
   output_append_r (buffer, start, end - start);
 }
 
+static void
+output_indent (buffer)
+     output_buffer *buffer;
+{
+  int n = output_indentation (buffer);
+  int i;
+
+  for (i = 0; i < n; ++i)
+    output_add_character (buffer, ' ');
+}
+
 /* Wrap a text delimited by START and END into BUFFER.  */
 
 static void

gcc/diagnostic.h

@@ -51,6 +51,10 @@ typedef struct
   /* The ideal upper bound of number of characters per line, as suggested
      by front-end. */  
   int ideal_maximum_length;
+
+  /* Indentation count.  */
+  int indent_skip;
+
   /* Nonzero if current PREFIX was emitted at least once.  */
   int emitted_prefix_p;
 
@@ -88,6 +92,7 @@ struct output_buffer
 #define output_buffer_format_args(BUFFER) *((BUFFER)->state.format_args)
 #define output_needs_newline(BUFFER) (BUFFER)->state.need_newline_p
 #define output_buffer_state(BUFFER) (BUFFER)->state
+#define output_indentation(BUFFER) (BUFFER)->state.indent_skip
 
 /* This data structure bundles altogether any information relevent to
    the context of a diagnostic message.  */

gcc/toplev.c

@@ -3774,7 +3774,7 @@ display_help ()
   printf (_("  -fcall-saved-<register> Mark <register> as being preserved across functions\n"));
   printf (_("  -finline-limit=<number> Limits the size of inlined functions to <number>\n"));
   printf (_("  -fmessage-length=<number> Limits diagnostics messages lengths to <number> characters per line.  0 suppresses line-wrapping\n"));
-  printf (_("  -fdiagnostics-show-location=[once | never] Indicates how often source location information should be emitted, as prefix, at the beginning of diagnostics when line-wrapping\n"));
+  printf (_("  -fdiagnostics-show-location=[once | every-line] Indicates how often source location information should be emitted, as prefix, at the beginning of diagnostics when line-wrapping\n"));
 
   for (i = ARRAY_SIZE (f_options); i--;)
     {