Module Name:    src
Committed By:   rillig
Date:           Fri May 12 22:38:47 UTC 2023

Modified Files:
        src/usr.bin/indent: indent.c indent.h parse.c

Log Message:
indent: rename placeholder symbol for parser stack

No functional change outside debug mode.


To generate a diff of this commit:
cvs rdiff -u -r1.255 -r1.256 src/usr.bin/indent/indent.c
cvs rdiff -u -r1.121 -r1.122 src/usr.bin/indent/indent.h
cvs rdiff -u -r1.52 -r1.53 src/usr.bin/indent/parse.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/usr.bin/indent/indent.c
diff -u src/usr.bin/indent/indent.c:1.255 src/usr.bin/indent/indent.c:1.256
--- src/usr.bin/indent/indent.c:1.255	Fri May 12 15:36:02 2023
+++ src/usr.bin/indent/indent.c	Fri May 12 22:38:47 2023
@@ -1,4 +1,4 @@
-/*	$NetBSD: indent.c,v 1.255 2023/05/12 15:36:02 rillig Exp $	*/
+/*	$NetBSD: indent.c,v 1.256 2023/05/12 22:38:47 rillig Exp $	*/
 
 /*-
  * SPDX-License-Identifier: BSD-4-Clause
@@ -43,7 +43,7 @@ static char sccsid[] = "@(#)indent.c	5.1
 
 #include <sys/cdefs.h>
 #if defined(__NetBSD__)
-__RCSID("$NetBSD: indent.c,v 1.255 2023/05/12 15:36:02 rillig Exp $");
+__RCSID("$NetBSD: indent.c,v 1.256 2023/05/12 22:38:47 rillig Exp $");
 #elif defined(__FreeBSD__)
 __FBSDID("$FreeBSD: head/usr.bin/indent/indent.c 340138 2018-11-04 19:24:49Z oshogbo $");
 #endif
@@ -485,7 +485,7 @@ process_lparen_or_lbracket(void)
     debug_println("paren_indents[%d] is now %d",
 	ps.nparen - 1, ps.paren[ps.nparen - 1].indent);
 
-    if (ps.spaced_expr_psym != psym_semicolon
+    if (ps.spaced_expr_psym != psym_0
 	    && ps.nparen == 1 && opt.extra_expr_indent
 	    && ps.paren[0].indent < 2 * opt.indent_size) {
 	ps.paren[0].indent = (short)(2 * opt.indent_size);
@@ -497,7 +497,7 @@ process_lparen_or_lbracket(void)
 	 * this is a kluge to make sure that declarations will be aligned
 	 * right if proc decl has an explicit type on it, i.e. "int a(x) {..."
 	 */
-	parse(psym_semicolon);	/* I said this was a kluge... */
+	parse(psym_0);
 	ps.init_or_struct = false;
     }
 
@@ -528,12 +528,12 @@ process_rparen_or_rbracket(void)
 
     *code.e++ = token.s[0];
 
-    if (ps.spaced_expr_psym != psym_semicolon && ps.nparen == 0) {
+    if (ps.spaced_expr_psym != psym_0 && ps.nparen == 0) {
 	ps.force_nl = true;
 	ps.next_unary = true;
 	ps.in_stmt_or_decl = false;
 	parse(ps.spaced_expr_psym);
-	ps.spaced_expr_psym = psym_semicolon;
+	ps.spaced_expr_psym = psym_0;
     }
 }
 
@@ -651,17 +651,17 @@ process_semicolon(void)
 	 */
 	diag(1, "Unbalanced parentheses");
 	ps.nparen = 0;
-	if (ps.spaced_expr_psym != psym_semicolon) {
+	if (ps.spaced_expr_psym != psym_0) {
 	    parse(ps.spaced_expr_psym);
-	    ps.spaced_expr_psym = psym_semicolon;
+	    ps.spaced_expr_psym = psym_0;
 	}
     }
     *code.e++ = ';';
     ps.want_blank = true;
     ps.in_stmt_or_decl = ps.nparen > 0;
 
-    if (ps.spaced_expr_psym == psym_semicolon) {
-	parse(psym_semicolon);	/* let parser know about end of stmt */
+    if (ps.spaced_expr_psym == psym_0) {
+	parse(psym_0);	/* let parser know about end of stmt */
 	ps.force_nl = true;
     }
 }
@@ -696,9 +696,9 @@ process_lbrace(void)
     if (ps.nparen > 0) {
 	diag(1, "Unbalanced parentheses");
 	ps.nparen = 0;
-	if (ps.spaced_expr_psym != psym_semicolon) {
+	if (ps.spaced_expr_psym != psym_0) {
 	    parse(ps.spaced_expr_psym);
-	    ps.spaced_expr_psym = psym_semicolon;
+	    ps.spaced_expr_psym = psym_0;
 	    ps.ind_level = ps.ind_level_follow;
 	}
     }
@@ -735,7 +735,7 @@ process_rbrace(void)
     if (ps.nparen > 0) {	/* check for unclosed if, for, else. */
 	diag(1, "Unbalanced parentheses");
 	ps.nparen = 0;
-	ps.spaced_expr_psym = psym_semicolon;
+	ps.spaced_expr_psym = psym_0;
     }
 
     ps.just_saw_decl = 0;
@@ -849,12 +849,12 @@ process_ident(lexer_symbol lsym)
 	    ps.want_blank = false;
 	}
 
-    } else if (ps.spaced_expr_psym != psym_semicolon && ps.nparen == 0) {
+    } else if (ps.spaced_expr_psym != psym_0 && ps.nparen == 0) {
 	ps.force_nl = true;
 	ps.next_unary = true;
 	ps.in_stmt_or_decl = false;
 	parse(ps.spaced_expr_psym);
-	ps.spaced_expr_psym = psym_semicolon;
+	ps.spaced_expr_psym = psym_0;
     }
 }
 

Index: src/usr.bin/indent/indent.h
diff -u src/usr.bin/indent/indent.h:1.121 src/usr.bin/indent/indent.h:1.122
--- src/usr.bin/indent/indent.h:1.121	Fri May 12 10:53:33 2023
+++ src/usr.bin/indent/indent.h	Fri May 12 22:38:47 2023
@@ -1,4 +1,4 @@
-/*	$NetBSD: indent.h,v 1.121 2023/05/12 10:53:33 rillig Exp $	*/
+/*	$NetBSD: indent.h,v 1.122 2023/05/12 22:38:47 rillig Exp $	*/
 
 /*-
  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
@@ -110,7 +110,7 @@ typedef enum lexer_symbol {
 } lexer_symbol;
 
 typedef enum parser_symbol {
-    psym_semicolon,		/* rather a placeholder than a semicolon */
+    psym_0,			/* a placeholder */
     psym_lbrace,
     psym_rbrace,
     psym_decl,
@@ -337,7 +337,7 @@ extern struct parser_state {
     parser_symbol spaced_expr_psym;	/* the parser symbol to be shifted
 					 * after the parenthesized expression
 					 * from a 'for', 'if', 'switch' or
-					 * 'while'; or psym_semicolon */
+					 * 'while'; or psym_0 */
 
     int quest_level;		/* when this is positive, we have seen a '?'
 				 * without the matching ':' in a '?:'

Index: src/usr.bin/indent/parse.c
diff -u src/usr.bin/indent/parse.c:1.52 src/usr.bin/indent/parse.c:1.53
--- src/usr.bin/indent/parse.c:1.52	Fri May 12 22:36:15 2023
+++ src/usr.bin/indent/parse.c	Fri May 12 22:38:47 2023
@@ -1,4 +1,4 @@
-/*	$NetBSD: parse.c,v 1.52 2023/05/12 22:36:15 rillig Exp $	*/
+/*	$NetBSD: parse.c,v 1.53 2023/05/12 22:38:47 rillig Exp $	*/
 
 /*-
  * SPDX-License-Identifier: BSD-4-Clause
@@ -43,7 +43,7 @@ static char sccsid[] = "@(#)parse.c	8.1 
 
 #include <sys/cdefs.h>
 #if defined(__NetBSD__)
-__RCSID("$NetBSD: parse.c,v 1.52 2023/05/12 22:36:15 rillig Exp $");
+__RCSID("$NetBSD: parse.c,v 1.53 2023/05/12 22:38:47 rillig Exp $");
 #else
 __FBSDID("$FreeBSD: head/usr.bin/indent/parse.c 337651 2018-08-11 19:20:06Z pstef $");
 #endif
@@ -60,7 +60,7 @@ const char *
 psym_name(parser_symbol psym)
 {
     static const char *const name[] = {
-	"semicolon",
+	"0",
 	"lbrace",
 	"rbrace",
 	"decl",
@@ -221,7 +221,7 @@ parse(parser_symbol psym)
 	ps.ind_level_follow += (int)opt.case_indent + 1;
 	break;
 
-    case psym_semicolon:	/* a simple statement */
+    case psym_0:		/* a simple statement */
 	break_comma = false;	/* don't break after comma in a declaration */
 	ps.s_sym[++ps.tos] = psym_stmt;
 	ps.s_ind_level[ps.tos] = ps.ind_level;

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