[src/trunk]: src/usr.bin/indent indent: extract probably_typedef into separat...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/557fe726c5e6
branches:  trunk
changeset: 987396:557fe726c5e6
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sat Sep 25 20:05:55 2021 +0000

description:
indent: extract probably_typedef into separate function

This condition is complicated enough that it warrants being split into
several clauses, maybe even with an explanation.

No functional change.

diffstat:

 usr.bin/indent/lexi.c |  31 +++++++++++++++++--------------
 1 files changed, 17 insertions(+), 14 deletions(-)

diffs (59 lines):

diff -r ddd49c6d3d20 -r 557fe726c5e6 usr.bin/indent/lexi.c
--- a/usr.bin/indent/lexi.c     Sat Sep 25 19:49:13 2021 +0000
+++ b/usr.bin/indent/lexi.c     Sat Sep 25 20:05:55 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: lexi.c,v 1.56 2021/09/25 19:49:13 rillig Exp $ */
+/*     $NetBSD: lexi.c,v 1.57 2021/09/25 20:05:55 rillig Exp $ */
 
 /*-
  * SPDX-License-Identifier: BSD-4-Clause
@@ -43,7 +43,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__NetBSD__)
-__RCSID("$NetBSD: lexi.c,v 1.56 2021/09/25 19:49:13 rillig Exp $");
+__RCSID("$NetBSD: lexi.c,v 1.57 2021/09/25 20:05:55 rillig Exp $");
 #elif defined(__FreeBSD__)
 __FBSDID("$FreeBSD: head/usr.bin/indent/lexi.c 337862 2018-08-15 18:19:45Z pstef $");
 #endif
@@ -336,6 +336,20 @@
     }
 }
 
+/*
+ * This hack attempts to guess whether the current token is in fact a
+ * declaration keyword -- one that has been defined by typedef.
+ */
+static bool
+probably_typedef(const struct parser_state *state)
+{
+    return state->p_l_follow == 0 && !state->block_init && !state->in_stmt &&
+          ((*buf_ptr == '*' && buf_ptr[1] != '=') ||
+           isalpha((unsigned char)*buf_ptr)) &&
+          (state->last_token == semicolon || state->last_token == lbrace ||
+           state->last_token == rbrace);
+}
+
 /* Reads the next token, placing it in the global variable "token". */
 token_type
 lexi(struct parser_state *state)
@@ -460,18 +474,7 @@
                state->in_parameter_declaration = true;
            return lexi_end(funcname);
     not_proc:;
-       }
-       /*
-        * The following hack attempts to guess whether or not the current
-        * token is in fact a declaration keyword -- one that has been
-        * typedefd
-        */
-       else if (state->p_l_follow == 0 && !state->block_init &&
-           !state->in_stmt &&
-           ((*buf_ptr == '*' && buf_ptr[1] != '=') ||
-               isalpha((unsigned char)*buf_ptr)) &&
-           (state->last_token == semicolon || state->last_token == lbrace ||
-               state->last_token == rbrace)) {
+       } else if (probably_typedef(state)) {
            state->keyword = rw_type;
            state->last_u_d = true;
            return lexi_end(decl);