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| author |   Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-12-11 20:01:01 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-12-22 00:25:52 +0900 |
| commit | c3d228713b10e6dd1bd44853168cec8e23ae7e0f (patch) | |
| tree | 199226be6fababdd0bc090b60149eca39f3604c4 /scripts/kconfig/zconf.l | |
| parent | kconfig: refactor scanning and parsing "option" properties (diff) | |
| download | linux-dev-c3d228713b10e6dd1bd44853168cec8e23ae7e0f.tar.xz linux-dev-c3d228713b10e6dd1bd44853168cec8e23ae7e0f.zip | |
kconfig: use specific tokens instead of T_ASSIGN for assignments
Currently, the lexer returns T_ASSIGN for all of =, :=, and +=
associating yylval with the flavor.
I want to make the generated lexer as simple as possible. So, the
lexer should convert keywords to tokens without thinking about the
meaning.
= -> T_EQUAL
:= -> T_COLON_EQUAL
+= -> T_PLUS_EQUAL
Unfortunately, Kconfig uses = instead of == for the equal operator.
So, the same token T_EQUAL is used for assignment and comparison.
The parser can still distinguish them from the context.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'scripts/kconfig/zconf.l')
| -rw-r--r-- | scripts/kconfig/zconf.l | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l index 30380790bab4..b1a71f612c11 100644 --- a/scripts/kconfig/zconf.l +++ b/scripts/kconfig/zconf.l @@ -118,9 +118,9 @@ n [A-Za-z0-9_-] return T_VARIABLE; free(yylval.string); } - "=" { BEGIN(ASSIGN_VAL); yylval.flavor = VAR_RECURSIVE; return T_ASSIGN; } - ":=" { BEGIN(ASSIGN_VAL); yylval.flavor = VAR_SIMPLE; return T_ASSIGN; } - "+=" { BEGIN(ASSIGN_VAL); yylval.flavor = VAR_APPEND; return T_ASSIGN; } + "=" { BEGIN(ASSIGN_VAL); return T_EQUAL; } + ":=" { BEGIN(ASSIGN_VAL); return T_COLON_EQUAL; } + "+=" { BEGIN(ASSIGN_VAL); return T_PLUS_EQUAL; } [[:blank:]]+ . warn_ignored_character(*yytext); \n { |