From: Masahiro Yamada <yamada.masahiro@socionext.com>
To: linux-kbuild@vger.kernel.org
Cc: Ulf Magnusson <ulfalizer@gmail.com>,
linux-kernel@vger.kernel.org,
Masahiro Yamada <yamada.masahiro@socionext.com>
Subject: [PATCH 25/27] kconfig: switch to ASSIGN_VAL state in the second lexer
Date: Tue, 11 Dec 2018 20:01:08 +0900 [thread overview]
Message-ID: <1544526070-16690-26-git-send-email-yamada.masahiro@socionext.com> (raw)
In-Reply-To: <1544526070-16690-1-git-send-email-yamada.masahiro@socionext.com>
To simplify the generated lexer, switch to the ASSIGN_VAL state in
the hand-made lexer.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
scripts/kconfig/zconf.l | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index c8823a4..d462507 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -25,6 +25,7 @@ static struct {
int lineno;
} current_pos;
+static int prev_prev_token = T_EOL;
static int prev_token = T_EOL;
static char *text;
static int text_size, text_asize;
@@ -124,9 +125,9 @@ n [A-Za-z0-9_-]
return T_WORD;
free(yylval.string);
}
- "=" { BEGIN(ASSIGN_VAL); return T_EQUAL; }
- ":=" { BEGIN(ASSIGN_VAL); return T_COLON_EQUAL; }
- "+=" { BEGIN(ASSIGN_VAL); return T_PLUS_EQUAL; }
+ "=" return T_EQUAL;
+ ":=" return T_COLON_EQUAL;
+ "+=" return T_PLUS_EQUAL;
[[:blank:]]+
. warn_ignored_character(*yytext);
\n {
@@ -294,6 +295,11 @@ repeat:
if ((prev_token == T_EOL || prev_token == T_HELPTEXT) && token == T_EOL)
goto repeat;
+ if (prev_prev_token == T_EOL && prev_token == T_WORD &&
+ (token == T_EQUAL || token == T_COLON_EQUAL || token == T_PLUS_EQUAL))
+ BEGIN(ASSIGN_VAL);
+
+ prev_prev_token = prev_token;
prev_token = token;
return token;
--
2.7.4
next prev parent reply other threads:[~2018-12-11 11:02 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-11 11:00 [PATCH 00/27] kconfig: remove all reduce/shift conflicts, refactor lexer, fix various issues Masahiro Yamada
2018-12-11 11:00 ` [PATCH 01/27] kconfig: fix file name and line number of warn_ignored_character() Masahiro Yamada
2018-12-11 11:00 ` [PATCH 02/27] kconfig: fix memory leak when EOF is encountered in quotation Masahiro Yamada
2018-12-11 11:00 ` [PATCH 03/27] kconfig: require T_EOL to reduce visible statement Masahiro Yamada
2018-12-11 11:00 ` [PATCH 04/27] kconfig: remove unneeded pattern matching to whitespaces Masahiro Yamada
2018-12-11 11:00 ` [PATCH 05/27] kconfig: refactor pattern matching in STRING state Masahiro Yamada
2018-12-11 11:00 ` [PATCH 06/27] kconfig: fix ambiguous grammar in terms of new lines Masahiro Yamada
2018-12-11 11:00 ` [PATCH 07/27] kconfig: clean up EOF handling in the lexer Masahiro Yamada
2018-12-11 11:00 ` [PATCH 08/27] kconfig: warn no new line at end of file Masahiro Yamada
2018-12-11 11:00 ` [PATCH 09/27] kconfig: remove grammatically ambiguous "unexpected option" diagnostic Masahiro Yamada
2018-12-11 11:00 ` [PATCH 10/27] kconfig: remove grammatically ambiguous option_error Masahiro Yamada
2018-12-11 11:00 ` [PATCH 11/27] kconfig: remove redundant if_block rule Masahiro Yamada
2018-12-11 11:00 ` [PATCH 12/27] kconfig: remove redundant menu_block rule Masahiro Yamada
2018-12-11 11:00 ` [PATCH 13/27] kconfig: loosen the order of "visible" and "depends on" in menu entry Masahiro Yamada
2018-12-11 11:00 ` [PATCH 14/27] kconfig: rename depends_list to comment_option_list Masahiro Yamada
2018-12-11 11:00 ` [PATCH 15/27] kconfig: remove redundant token defines Masahiro Yamada
2018-12-11 11:00 ` [PATCH 16/27] kconfig: use distinct tokens for type and default properties Masahiro Yamada
2018-12-11 11:01 ` [PATCH 17/27] kconfig: refactor scanning and parsing "option" properties Masahiro Yamada
2018-12-11 11:01 ` [PATCH 18/27] kconfig: use specific tokens instead of T_ASSIGN for assignments Masahiro Yamada
2018-12-11 11:01 ` [PATCH 19/27] kconfig: use T_WORD instead of T_VARIABLE for variables Masahiro Yamada
2018-12-11 11:01 ` [PATCH 20/27] microblaze: surround string default in Kconfig with double quotes Masahiro Yamada
2018-12-12 8:28 ` Michal Simek
2018-12-11 11:01 ` [PATCH 21/27] treewide: surround file paths in Kconfig files " Masahiro Yamada
2018-12-11 11:19 ` Wolfram Sang
2018-12-11 11:25 ` Geert Uytterhoeven
2018-12-11 14:43 ` Ingo Molnar
2018-12-11 11:01 ` [PATCH 22/27] kconfig: ban the use of '.' and '/' in unquoted words Masahiro Yamada
2018-12-11 11:01 ` [PATCH 23/27] kconfig: refactor end token rules Masahiro Yamada
2018-12-11 11:01 ` [PATCH 24/27] kconfig: stop associating kconf_id with yylval Masahiro Yamada
2018-12-11 11:01 ` Masahiro Yamada [this message]
2018-12-11 11:01 ` [PATCH 26/27] kconfig: update current_pos in the second lexer Masahiro Yamada
2018-12-11 11:01 ` [PATCH 27/27] kconfig: remove keyword lookup table entirely Masahiro Yamada
2018-12-19 14:59 ` [PATCH 00/27] kconfig: remove all reduce/shift conflicts, refactor lexer, fix various issues Masahiro Yamada
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