"Implement -[n]fcb (formatting of block comments) and attempt to implement

no-space=after-sizeof (not optional) and no-space-after 'struct foo *'
(not optional).  Without these, indent unKNFizes even more perfectly KNF code."

Submitted by:	bde

usr.bin/indent/args.c

@@ -110,6 +110,7 @@ struct pro {
     "fbx", PRO_FONT, 0, 0, (int *) &boxcomf,
     "fb", PRO_FONT, 0, 0, (int *) &bodyf,
     "fc1", PRO_BOOL, true, ON, &format_col1_comments,
+    "fcb", PRO_BOOL, true, ON, &format_block_comments,
     "fc", PRO_FONT, 0, 0, (int *) &scomf,
     "fk", PRO_FONT, 0, 0, (int *) &keywordf,
     "fs", PRO_FONT, 0, 0, (int *) &stringf,
@@ -131,6 +132,7 @@ struct pro {
     "neei", PRO_BOOL, false, OFF, &extra_expression_indent,
     "nei", PRO_BOOL, true, OFF, &ps.else_if,
     "nfc1", PRO_BOOL, true, OFF, &format_col1_comments,
+    "nfcb", PRO_BOOL, true, OFF, &format_block_comments,
     "nip", PRO_BOOL, true, OFF, &ps.indent_parameters,
     "nlp", PRO_BOOL, true, OFF, &lineup_to_parens,
     "npcs", PRO_BOOL, false, OFF, &proc_calls_space,

usr.bin/indent/indent.1

@@ -63,6 +63,7 @@
 .Op Fl \&di Ns Ar n
 .Bk -words
 .Op Fl fc1 | Fl nfc1
+.Op Fl fcb | Fl nfcb
 .Ek
 .Op Fl i Ns Ar n
 .Op Fl \&ip | Fl nip
@@ -245,6 +246,15 @@ hand formatted by the programmer.  In such cases,
 should be
 used.  The default is
 .Fl fc1  .
+.It Fl fcb , nfcb
+Enables (disables) the formatting of block comments (ones that begin
+with `/*\\n').  Often, block comments have been not so carefully hand
+formatted by the programmer, but reformatting that would just change
+the line breaks is not wanted.  In such cases,
+.Fl nfcb
+should be used.  Block comments are then handled like box comments.
+The default is
+.Fl fcb  .
 .It Fl i Ns Ar n 
 The number of spaces for one indentation level.  The default is 8.
 .It Fl \&ip , nip

usr.bin/indent/indent.c

@@ -165,6 +165,7 @@ main(argc, argv)
     cuddle_else = 1;		/* -ce */
     ps.unindent_displace = 0;	/* -d0 */
     ps.case_indent = 0;		/* -cli0 */
+    format_block_comments = 1;	/* -fcb */
     format_col1_comments = 1;	/* -fc1 */
     procnames_start_line = 1;	/* -psl */
     proc_calls_space = 0;	/* -npcs */
@@ -533,7 +534,9 @@ main(argc, argv)
 	    if (ps.cast_mask & (1 << ps.p_l_follow) & ~ps.sizeof_mask) {
 		ps.last_u_d = true;
 		ps.cast_mask &= (1 << ps.p_l_follow) - 1;
-	    }
+		ps.want_blank = false;
+	    } else
+		ps.want_blank = true;
 	    ps.sizeof_mask &= (1 << ps.p_l_follow) - 1;
 	    if (--ps.p_l_follow < 0) {
 		ps.p_l_follow = 0;
@@ -543,7 +546,6 @@ main(argc, argv)
 		ps.paren_level = ps.p_l_follow;	/* then indent it */
 
 	    *e_code++ = token[0];
-	    ps.want_blank = true;
 
 	    if (sp_sw && (ps.p_l_follow == 0)) {	/* check for end of if
 							 * (...), or some such */

usr.bin/indent/indent_globs.h

@@ -33,6 +33,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)indent_globs.h	8.1 (Berkeley) 6/6/93
+ * $FreeBSD$
  */
 
 #define BACKSLASH '\\'
@@ -155,6 +156,8 @@ int         procnames_start_line;	/* if true, the names of procedures
 					 * name) */
 int         proc_calls_space;	/* If true, procedure calls look like:
 				 * foo(bar) rather than foo (bar) */
+int         format_block_comments;	/* true if comments beginning with
+					 * `/*\n' are to be reformatted */
 int         format_col1_comments;	/* If comments which start in column 1
 					 * are to be magically reformatted
 					 * (just like comments that begin in

usr.bin/indent/lexi.c

@@ -35,6 +35,7 @@
 
 #ifndef lint
 static char sccsid[] = "@(#)lexi.c	8.1 (Berkeley) 6/6/93";
+static char rcsid[] = "@(#)$FreeBSD$";
 #endif /* not lint */
 
 /*
@@ -58,7 +59,7 @@ struct templ {
     int         rwcode;
 };
 
-struct templ specials[100] =
+struct templ specials[1000] =
 {
     "switch", 1,
     "case", 2,
@@ -88,6 +89,8 @@ struct templ specials[100] =
     "else", 6,
     "do", 6,
     "sizeof", 7,
+    "const", 9,
+    "volatile", 9,
     0, 0
 };
 
@@ -257,18 +260,27 @@ lexi()
 		return (casestmt);
 
 	    case 3:		/* a "struct" */
-		if (ps.p_l_follow)
-		    break;	/* inside parens: cast */
+		/*
+		 * Next time around, we may want to know that we have had a
+		 * 'struct'
+		 */
 		l_struct = true;
 
 		/*
-		 * Next time around, we will want to know that we have had a
-		 * 'struct'
+		 * Fall through to test for a cast, function prototype or
+		 * sizeof().
 		 */
 	    case 4:		/* one of the declaration keywords */
 		if (ps.p_l_follow) {
 		    ps.cast_mask |= 1 << ps.p_l_follow;
-		    break;	/* inside parens: cast */
+
+		    /*
+		     * Forget that we saw `struct' if we're in a sizeof().
+		     */
+		    if (ps.sizeof_mask)
+			l_struct = false;
+
+		    break;	/* inside parens: cast, prototype or sizeof() */
 		}
 		last_code = decl;
 		return (decl);

usr.bin/indent/pr_comment.c

@@ -35,6 +35,7 @@
 
 #ifndef lint
 static char sccsid[] = "@(#)pr_comment.c	8.1 (Berkeley) 6/6/93";
+static char rcsid[] = "@(#)$FreeBSD$";
 #endif /* not lint */
 
 #include <stdio.h>
@@ -111,10 +112,15 @@ pr_comment()
 	ps.com_col = 1;
     }
     else {
-	if (*buf_ptr == '-' || *buf_ptr == '*') {
-	    ps.box_com = true;	/* a comment with a '-' or '*' immediately
+	if (*buf_ptr == '-' || *buf_ptr == '*' ||
+	    (*buf_ptr == '\n' && !format_block_comments)) {
+	    ps.box_com = true;	/* A comment with a '-' or '*' immediately
 				 * after the /* is assumed to be a boxed
-				 * comment */
+				 * comment. A comment with a newline
+				 * immediately after the /* is assumed to
+				 * be a block comment and is treated as a
+				 * box comment unless format_block_comments
+				 * is nonzero (the default). */
 	    break_delim = 0;
 	}
 	if ( /* ps.bl_line && */ (s_lab == e_lab) && (s_code == e_code)) {