Module Name:    src
Committed By:   rillig
Date:           Thu Oct 28 21:56:26 UTC 2021

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

Log Message:
indent: reduce negations in search_stmt_lookahead

No functional change.


To generate a diff of this commit:
cvs rdiff -u -r1.164 -r1.165 src/usr.bin/indent/indent.c
cvs rdiff -u -r1.53 -r1.54 src/usr.bin/indent/indent.h
cvs rdiff -u -r1.105 -r1.106 src/usr.bin/indent/lexi.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:1.164 src/usr.bin/indent/indent.c:1.165
--- src/usr.bin/indent/indent.c:1.164	Thu Oct 28 21:51:43 2021
+++ src/usr.bin/indent/indent.c	Thu Oct 28 21:56:26 2021
@@ -1,4 +1,4 @@
-/*	$NetBSD: indent.c,v 1.164 2021/10/28 21:51:43 rillig Exp $	*/
+/*	$NetBSD: indent.c,v 1.165 2021/10/28 21:56:26 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 1.164 2021/10/28 21:51:43 rillig Exp $");
+__RCSID("$NetBSD: indent.c,v 1.165 2021/10/28 21:56:26 rillig Exp $");
 #elif defined(__FreeBSD__)
 __FBSDID("$FreeBSD: head/usr.bin/indent/indent.c 340138 2018-11-04 19:24:49Z oshogbo $");
 #endif
@@ -333,12 +333,11 @@ search_stmt_lookahead(lexer_symbol *lsym
 	    inbuf_read_line();
     }
 
-    struct parser_state transient_state = ps;
-    *lsym = lexi(&transient_state);	/* read another token */
-    if (*lsym != lsym_newline && *lsym != lsym_form_feed &&
-	*lsym != lsym_comment && !transient_state.search_stmt) {
-	ps = transient_state;
-    }
+    struct parser_state backup_ps = ps;
+    *lsym = lexi();
+    if (*lsym == lsym_newline || *lsym == lsym_form_feed ||
+	*lsym == lsym_comment || ps.search_stmt)
+	ps = backup_ps;
 }
 
 /*
@@ -1352,7 +1351,7 @@ main_loop(void)
 				 * reach eof */
 	bool comment_buffered = false;
 
-	lexer_symbol lsym = lexi(&ps);	/* Read the next token.  The actual
+	lexer_symbol lsym = lexi();	/* Read the next token.  The actual
 					 * characters read are stored in
 					 * "token". */
 

Index: src/usr.bin/indent/indent.h
diff -u src/usr.bin/indent/indent.h:1.53 src/usr.bin/indent/indent.h:1.54
--- src/usr.bin/indent/indent.h:1.53	Thu Oct 28 21:51:43 2021
+++ src/usr.bin/indent/indent.h	Thu Oct 28 21:56:26 2021
@@ -1,4 +1,4 @@
-/*	$NetBSD: indent.h,v 1.53 2021/10/28 21:51:43 rillig Exp $	*/
+/*	$NetBSD: indent.h,v 1.54 2021/10/28 21:56:26 rillig Exp $	*/
 
 /*-
  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
@@ -368,7 +368,7 @@ void debug_println(const char *, ...)__p
 #endif
 void inbuf_skip(void);
 char inbuf_next(void);
-lexer_symbol lexi(struct parser_state *);
+lexer_symbol lexi(void);
 void diag(int, const char *, ...)__printflike(2, 3);
 void dump_line(void);
 void dump_line_ff(void);

Index: src/usr.bin/indent/lexi.c
diff -u src/usr.bin/indent/lexi.c:1.105 src/usr.bin/indent/lexi.c:1.106
--- src/usr.bin/indent/lexi.c:1.105	Tue Oct 26 20:43:35 2021
+++ src/usr.bin/indent/lexi.c	Thu Oct 28 21:56:26 2021
@@ -1,4 +1,4 @@
-/*	$NetBSD: lexi.c,v 1.105 2021/10/26 20:43:35 rillig Exp $	*/
+/*	$NetBSD: lexi.c,v 1.106 2021/10/28 21:56:26 rillig Exp $	*/
 
 /*-
  * SPDX-License-Identifier: BSD-4-Clause
@@ -43,7 +43,7 @@ static char sccsid[] = "@(#)lexi.c	8.1 (
 
 #include <sys/cdefs.h>
 #if defined(__NetBSD__)
-__RCSID("$NetBSD: lexi.c,v 1.105 2021/10/26 20:43:35 rillig Exp $");
+__RCSID("$NetBSD: lexi.c,v 1.106 2021/10/28 21:56:26 rillig Exp $");
 #elif defined(__FreeBSD__)
 __FBSDID("$FreeBSD: head/usr.bin/indent/lexi.c 337862 2018-08-15 18:19:45Z pstef $");
 #endif
@@ -557,8 +557,10 @@ not_proc:;
 
 /* Reads the next token, placing it in the global variable "token". */
 lexer_symbol
-lexi(struct parser_state *state)
+lexi(void)
 {
+    struct parser_state *state = &ps;
+
     token.e = token.s;
     state->col_1 = state->last_nl;
     state->last_nl = false;

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