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kconfig: switch to ASSIGN_VAL state in the second lexer

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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>
This commit is contained in:
Masahiro Yamada 2018-12-11 20:01:08 +09:00
parent b3d1d9d3c3
commit 824fa3b3b5
1 changed files with 9 additions and 3 deletions
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12
scripts/kconfig/zconf.l
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@ -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;