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[src/trunk]: src/usr.bin/indent indent: use prev/curr/next to refer to the cu...



details:   https://anonhg.NetBSD.org/src/rev/35dae6bca752
branches:  trunk
changeset: 1024593:35dae6bca752
user:      rillig <rillig%NetBSD.org@localhost>
date:      Fri Oct 29 17:50:37 2021 +0000

description:
indent: use prev/curr/next to refer to the current token

The word 'last' just didn't match with 'next'.

No functional change.

diffstat:

 tests/usr.bin/indent/token_comment.c |   4 ++--
 tests/usr.bin/indent/token_lparen.c  |   6 +++---
 usr.bin/indent/indent.c              |  22 +++++++++++-----------
 usr.bin/indent/indent.h              |  15 ++++++++-------
 usr.bin/indent/lexi.c                |  35 +++++++++++++++++------------------
 usr.bin/indent/pr_comment.c          |  14 +++++++-------
 6 files changed, 48 insertions(+), 48 deletions(-)

diffs (truncated from 338 to 300 lines):

diff -r 4bd7db9280a0 -r 35dae6bca752 tests/usr.bin/indent/token_comment.c
--- a/tests/usr.bin/indent/token_comment.c      Fri Oct 29 17:41:56 2021 +0000
+++ b/tests/usr.bin/indent/token_comment.c      Fri Oct 29 17:50:37 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: token_comment.c,v 1.8 2021/10/26 21:37:27 rillig Exp $ */
+/* $NetBSD: token_comment.c,v 1.9 2021/10/29 17:50:37 rillig Exp $ */
 /* $FreeBSD$ */
 
 /*
@@ -41,7 +41,7 @@
  * - with varying opt.comment_column (-c0, -c1, -c33, -c80)
  * - with varying opt.decl_comment_column (-cd0, -cd1, -cd20, -cd33, -cd80)
  * - with/without ps.decl_on_line
- * - with/without ps.last_nl
+ * - with/without ps.prev_newline
  *
  * - very long comments that overflow the buffer 'com'
  * - comments that come from save_com
diff -r 4bd7db9280a0 -r 35dae6bca752 tests/usr.bin/indent/token_lparen.c
--- a/tests/usr.bin/indent/token_lparen.c       Fri Oct 29 17:41:56 2021 +0000
+++ b/tests/usr.bin/indent/token_lparen.c       Fri Oct 29 17:50:37 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: token_lparen.c,v 1.8 2021/10/29 16:54:51 rillig Exp $ */
+/* $NetBSD: token_lparen.c,v 1.9 2021/10/29 17:50:37 rillig Exp $ */
 /* $FreeBSD$ */
 
 /*
@@ -100,7 +100,7 @@
 #indent input
 void cover_want_blank_before_lparen(void)
 {
-       /* ps.last_token can never be 'newline'. */
+       /* ps.prev_token can never be 'newline'. */
        int newline =
        (3);
 
@@ -146,7 +146,7 @@
 void
 cover_want_blank_before_lparen(void)
 {
-       /* ps.last_token can never be 'newline'. */
+       /* ps.prev_token can never be 'newline'. */
        int newline =
        (3);
 
diff -r 4bd7db9280a0 -r 35dae6bca752 usr.bin/indent/indent.c
--- a/usr.bin/indent/indent.c   Fri Oct 29 17:41:56 2021 +0000
+++ b/usr.bin/indent/indent.c   Fri Oct 29 17:50:37 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: indent.c,v 1.170 2021/10/29 17:32:22 rillig Exp $      */
+/*     $NetBSD: indent.c,v 1.171 2021/10/29 17:50:37 rillig Exp $      */
 
 /*-
  * SPDX-License-Identifier: BSD-4-Clause
@@ -43,7 +43,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__NetBSD__)
-__RCSID("$NetBSD: indent.c,v 1.170 2021/10/29 17:32:22 rillig Exp $");
+__RCSID("$NetBSD: indent.c,v 1.171 2021/10/29 17:50:37 rillig Exp $");
 #elif defined(__FreeBSD__)
 __FBSDID("$FreeBSD: head/usr.bin/indent/indent.c 340138 2018-11-04 19:24:49Z oshogbo $");
 #endif
@@ -450,8 +450,8 @@
     found_err = false;
 
     ps.s_sym[0] = psym_stmt;
-    ps.last_nl = true;
-    ps.last_token = lsym_semicolon;
+    ps.prev_newline = true;
+    ps.prev_token = lsym_semicolon;
     buf_init(&com);
     buf_init(&lab);
     buf_init(&code);
@@ -690,7 +690,7 @@
 static void
 process_newline(void)
 {
-    if (ps.last_token == lsym_comma && ps.p_l_follow == 0 && !ps.block_init &&
+    if (ps.prev_token == lsym_comma && ps.p_l_follow == 0 && !ps.block_init &&
        !opt.break_after_comma && break_comma &&
        com.s == com.e)
        goto stay_in_line;
@@ -707,9 +707,9 @@
 {
     if (!ps.want_blank)
        return false;
-    if (ps.last_token == lsym_rparen_or_rbracket)
+    if (ps.prev_token == lsym_rparen_or_rbracket)
        return false;
-    if (ps.last_token != lsym_ident && ps.last_token != lsym_funcname)
+    if (ps.prev_token != lsym_ident && ps.prev_token != lsym_funcname)
        return true;
     if (opt.proc_calls_space)
        return true;
@@ -881,7 +881,7 @@
        ps.init_or_struct = false;
     *seen_case = false;                /* these will only need resetting in an error */
     *quest_level = 0;
-    if (ps.last_token == lsym_rparen_or_rbracket)
+    if (ps.prev_token == lsym_rparen_or_rbracket)
        ps.in_parameter_declaration = false;
     ps.cast_mask = 0;
     ps.not_cast_mask = 0;
@@ -1079,7 +1079,7 @@
 {
     parse(psym_decl);          /* let the parser worry about indentation */
 
-    if (ps.last_token == lsym_rparen_or_rbracket && ps.tos <= 1) {
+    if (ps.prev_token == lsym_rparen_or_rbracket && ps.tos <= 1) {
        if (code.s != code.e) {
            dump_line();
            ps.want_blank = false;
@@ -1093,7 +1093,7 @@
     }
 
     ps.init_or_struct = /* maybe */ true;
-    ps.in_decl = ps.decl_on_line = ps.last_token != lsym_typedef;
+    ps.in_decl = ps.decl_on_line = ps.prev_token != lsym_typedef;
     if (ps.decl_nest <= 0)
        ps.just_saw_decl = 2;
 
@@ -1505,7 +1505,7 @@
        *code.e = '\0';
        if (lsym != lsym_comment && lsym != lsym_newline &&
                lsym != lsym_preprocessing)
-           ps.last_token = lsym;
+           ps.prev_token = lsym;
     }
 }
 
diff -r 4bd7db9280a0 -r 35dae6bca752 usr.bin/indent/indent.h
--- a/usr.bin/indent/indent.h   Fri Oct 29 17:41:56 2021 +0000
+++ b/usr.bin/indent/indent.h   Fri Oct 29 17:50:37 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: indent.h,v 1.59 2021/10/29 17:41:56 rillig Exp $       */
+/*     $NetBSD: indent.h,v 1.60 2021/10/29 17:50:37 rillig Exp $       */
 
 /*-
  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
@@ -272,13 +272,14 @@
 #define        STACKSIZE 256
 
 extern struct parser_state {
-    /* TODO: rename to prev_token */
-    lexer_symbol last_token;
-    /* TODO: rename to prev_newline */
-    bool last_nl;              /* whether the last thing scanned was a
+    /*
+     * TODO: Double-check that the word 'prev' in the following variables
+     * means exactly the same thing.
+     */
+    lexer_symbol prev_token;
+    bool prev_newline;         /* whether the last thing scanned was a
                                 * newline */
-    /* TODO: rename to prev_col_1 */
-    bool col_1;                        /* whether the last token started in column 1 */
+    bool prev_col_1;           /* whether the last token started in column 1 */
     enum keyword_kind prev_keyword;
     enum keyword_kind curr_keyword;
     bool next_unary;           /* whether the following operator should be
diff -r 4bd7db9280a0 -r 35dae6bca752 usr.bin/indent/lexi.c
--- a/usr.bin/indent/lexi.c     Fri Oct 29 17:41:56 2021 +0000
+++ b/usr.bin/indent/lexi.c     Fri Oct 29 17:50:37 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: lexi.c,v 1.109 2021/10/29 16:59:35 rillig Exp $        */
+/*     $NetBSD: lexi.c,v 1.110 2021/10/29 17:50:37 rillig Exp $        */
 
 /*-
  * SPDX-License-Identifier: BSD-4-Clause
@@ -43,7 +43,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__NetBSD__)
-__RCSID("$NetBSD: lexi.c,v 1.109 2021/10/29 16:59:35 rillig Exp $");
+__RCSID("$NetBSD: lexi.c,v 1.110 2021/10/29 17:50:37 rillig Exp $");
 #elif defined(__FreeBSD__)
 __FBSDID("$FreeBSD: head/usr.bin/indent/lexi.c 337862 2018-08-15 18:19:45Z pstef $");
 #endif
@@ -399,9 +399,9 @@
        goto maybe;
     return false;
 maybe:
-    return ps.last_token == lsym_semicolon ||
-       ps.last_token == lsym_lbrace ||
-       ps.last_token == lsym_rbrace;
+    return ps.prev_token == lsym_semicolon ||
+       ps.prev_token == lsym_lbrace ||
+       ps.prev_token == lsym_rbrace;
 }
 
 static int
@@ -456,13 +456,13 @@
     while (is_hspace(inbuf_peek()))
        inbuf_skip();
 
-    if (ps.last_token == lsym_tag && ps.p_l_follow == 0) {
+    if (ps.prev_token == lsym_tag && ps.p_l_follow == 0) {
        ps.next_unary = true;
        return lsym_type;
     }
 
     /* Operator after identifier is binary unless last token was 'struct'. */
-    ps.next_unary = ps.last_token == lsym_tag;
+    ps.next_unary = ps.prev_token == lsym_tag;
 
     const struct keyword *kw = bsearch(token.s, keywords,
        array_length(keywords), sizeof(keywords[0]), cmp_keyword_by_name);
@@ -491,8 +491,8 @@
                /* inside parentheses: cast, param list, offsetof or sizeof */
                ps.cast_mask |= (1 << ps.p_l_follow) & ~ps.not_cast_mask;
            }
-           if (ps.last_token == lsym_period ||
-                   ps.last_token == lsym_unary_op)
+           if (ps.prev_token == lsym_period ||
+                   ps.prev_token == lsym_unary_op)
                break;
            if (kw != NULL && kw->kind == kw_struct_or_union_or_enum)
                return lsym_tag;
@@ -546,7 +546,7 @@
        return lsym_type;
     }
 
-    if (ps.last_token == lsym_type)    /* if this is a declared variable,
+    if (ps.prev_token == lsym_type)    /* if this is a declared variable,
                                         * then following sign is unary */
        ps.next_unary = true;   /* will make "int a -1" work */
 
@@ -558,13 +558,13 @@
 lexi(void)
 {
     token.e = token.s;
-    ps.col_1 = ps.last_nl;
-    ps.last_nl = false;
+    ps.prev_col_1 = ps.prev_newline;
+    ps.prev_newline = false;
     ps.prev_keyword = ps.curr_keyword;
     ps.curr_keyword = kw_0;
 
     while (is_hspace(*inp.s)) {
-       ps.col_1 = false;
+       ps.prev_col_1 = false;
        inbuf_skip();
     }
 
@@ -585,7 +585,7 @@
     switch (*token.s) {
     case '\n':
        unary_delim = ps.next_unary;
-       ps.last_nl = true;      /* remember that we just had a newline */
+       ps.prev_newline = true;
        /* if data has been exhausted, the newline is a dummy. */
        lsym = had_eof ? lsym_eof : lsym_newline;
        break;
@@ -639,8 +639,7 @@
 
     case '\f':
        unary_delim = ps.next_unary;
-       ps.last_nl = true;      /* remember this, so we can set 'ps.col_1'
-                                * right */
+       ps.prev_newline = true;
        lsym = lsym_form_feed;
        break;
 
@@ -661,8 +660,8 @@
 
        if (*inp.s == token.s[0]) {     /* ++, -- */
            *token.e++ = *inp.s++;
-           if (ps.last_token == lsym_ident ||
-                   ps.last_token == lsym_rparen_or_rbracket) {
+           if (ps.prev_token == lsym_ident ||
+                   ps.prev_token == lsym_rparen_or_rbracket) {
                lsym = ps.next_unary ? lsym_unary_op : lsym_postfix_op;
                unary_delim = false;
            }
diff -r 4bd7db9280a0 -r 35dae6bca752 usr.bin/indent/pr_comment.c
--- a/usr.bin/indent/pr_comment.c       Fri Oct 29 17:41:56 2021 +0000
+++ b/usr.bin/indent/pr_comment.c       Fri Oct 29 17:50:37 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pr_comment.c,v 1.87 2021/10/26 21:37:27 rillig Exp $   */
+/*     $NetBSD: pr_comment.c,v 1.88 2021/10/29 17:50:37 rillig Exp $   */
 
 /*-
  * SPDX-License-Identifier: BSD-4-Clause
@@ -43,7 +43,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__NetBSD__)
-__RCSID("$NetBSD: pr_comment.c,v 1.87 2021/10/26 21:37:27 rillig Exp $");
+__RCSID("$NetBSD: pr_comment.c,v 1.88 2021/10/29 17:50:37 rillig Exp $");
 #elif defined(__FreeBSD__)
 __FBSDID("$FreeBSD: head/usr.bin/indent/pr_comment.c 334927 2018-06-10 16:44:18Z pstef $");
 #endif
@@ -136,7 +136,7 @@
 
     /* Figure where to align and how to treat the comment */
 
-    if (ps.col_1 && !opt.format_col1_comments) {
+    if (ps.prev_col_1 && !opt.format_col1_comments) {
        may_wrap = false;



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