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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-12-11 20:01:08 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-12-22 00:25:55 +0900 |
| commit | 824fa3b3b5e3647de0530328e8734c24418eec49 (patch) | |
| tree | c0f2f25cc2ab2fc444eb8862575a087d2324bbe5 /scripts/kconfig | |
| parent | b3d1d9d3c36214a50c18ba377b47152c021768df (diff) | |
| download | lwn-824fa3b3b5e3647de0530328e8734c24418eec49.tar.gz lwn-824fa3b3b5e3647de0530328e8734c24418eec49.zip | |
kconfig: switch to ASSIGN_VAL state in the second lexer
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>
Diffstat (limited to 'scripts/kconfig')
| -rw-r--r-- | scripts/kconfig/zconf.l | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l index ed0d0a3b0d62..05e2d95e3b22 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; @@ -117,9 +118,9 @@ 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 { @@ -288,6 +289,11 @@ 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; |