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kconfig: use default 'yy' prefix for lexer and parser

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Flex and Bison provide an option to change the prefix of globally-
visible symbols.  This is useful to link multiple lexers and/or
parsers into the same executable.  However, Kconfig (and any other
host programs in kernel) uses a single lexer and parser.  I do not
see a good reason to change the default 'yy' prefix.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>
This commit is contained in:
Masahiro Yamada
2018-01-12 00:50:50 +09:00
parent 84dd95d4f8
commit 765f4cdef6
3 changed files with 19 additions and 22 deletions
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16
scripts/kconfig/zconf.l
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@@ -106,11 +106,11 @@ n [A-Za-z0-9_-]
current_pos.file = current_file;
current_pos.lineno = current_file->lineno;
if (id && id->flags & TF_COMMAND) {
zconflval.id = id;
yylval.id = id;
return id->token;
}
alloc_string(yytext, yyleng);
zconflval.string = text;
yylval.string = text;
return T_WORD;
}
. warn_ignored_character(*yytext);
@@ -142,11 +142,11 @@ n [A-Za-z0-9_-]
({n}|[/.])+ {
const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
if (id && id->flags & TF_PARAM) {
zconflval.id = id;
yylval.id = id;
return id->token;
}
alloc_string(yytext, yyleng);
zconflval.string = text;
yylval.string = text;
return T_WORD;
}
#.* /* comment */
@@ -161,7 +161,7 @@ n [A-Za-z0-9_-]
<STRING>{
[^'"\\\n]+/\n {
append_string(yytext, yyleng);
zconflval.string = text;
yylval.string = text;
return T_WORD_QUOTE;
}
[^'"\\\n]+ {
@@ -169,7 +169,7 @@ n [A-Za-z0-9_-]
}
\\.?/\n {
append_string(yytext + 1, yyleng - 1);
zconflval.string = text;
yylval.string = text;
return T_WORD_QUOTE;
}
\\.? {
@@ -178,7 +178,7 @@ n [A-Za-z0-9_-]
\'|\" {
if (str == yytext[0]) {
BEGIN(PARAM);
zconflval.string = text;
yylval.string = text;
return T_WORD_QUOTE;
} else
append_string(yytext, 1);
@@ -261,7 +261,7 @@ void zconf_starthelp(void)
static void zconf_endhelp(void)
{
zconflval.string = text;
yylval.string = text;
BEGIN(INITIAL);
}