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[src/trunk]: src/usr.bin/make make(1): separate ParseGetLine into paragraphs



details:   https://anonhg.NetBSD.org/src/rev/271a9cf3de7e
branches:  trunk
changeset: 1017206:271a9cf3de7e
user:      rillig <rillig%NetBSD.org@localhost>
date:      Fri Dec 18 18:23:29 2020 +0000

description:
make(1): separate ParseGetLine into paragraphs

diffstat:

 usr.bin/make/parse.c |  41 ++++++++++++++++++++---------------------
 1 files changed, 20 insertions(+), 21 deletions(-)

diffs (81 lines):

diff -r 480f2406848b -r 271a9cf3de7e usr.bin/make/parse.c
--- a/usr.bin/make/parse.c      Fri Dec 18 18:17:45 2020 +0000
+++ b/usr.bin/make/parse.c      Fri Dec 18 18:23:29 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: parse.c,v 1.483 2020/12/15 00:32:26 rillig Exp $       */
+/*     $NetBSD: parse.c,v 1.484 2020/12/18 18:23:29 rillig Exp $       */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -117,7 +117,7 @@
 #include "pathnames.h"
 
 /*     "@(#)parse.c    8.3 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: parse.c,v 1.483 2020/12/15 00:32:26 rillig Exp $");
+MAKE_RCSID("$NetBSD: parse.c,v 1.484 2020/12/18 18:23:29 rillig Exp $");
 
 /* types and constants */
 
@@ -2688,6 +2688,7 @@
                                ch = '\0';
                                break;
                        }
+
                        ch = *ptr;
                        if (ch == '\0' ||
                            (ch == '\\' && ptr + 1 < cf->buf_end &&
@@ -2697,11 +2698,11 @@
                                return NULL;
                        }
 
+                       /*
+                        * Don't treat next character after '\' as special,
+                        * remember first one.
+                        */
                        if (ch == '\\') {
-                               /*
-                                * Don't treat next character as special,
-                                * remember first one.
-                                */
                                if (escaped == NULL)
                                        escaped = ptr;
                                if (ptr[1] == '\n')
@@ -2710,25 +2711,23 @@
                                line_end = ptr;
                                continue;
                        }
-                       if (ch == '#' && comment == NULL) {
-                               /*
-                                * Remember the first '#' for comment
-                                * stripping, unless the previous char was
-                                * '[', as in the modifier ':[#]'.
-                                */
-                               if (!(ptr > line && ptr[-1] == '['))
-                                       comment = line_end;
-                       }
+
+                       /*
+                        * Remember the first '#' for comment stripping,
+                        * unless the previous char was '[', as in the
+                        * modifier ':[#]'.
+                        */
+                       if (ch == '#' && comment == NULL &&
+                           !(ptr > line && ptr[-1] == '['))
+                               comment = line_end;
+
                        ptr++;
                        if (ch == '\n')
                                break;
-                       if (!ch_isspace(ch)) {
-                               /*
-                                * We are not interested in trailing
-                                * whitespace.
-                                */
+
+                       /* We are not interested in trailing whitespace. */
+                       if (!ch_isspace(ch))
                                line_end = ptr;
-                       }
                }
 
                /* Save next 'to be processed' location */



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