-%option nostdinit noyywrap never-interactive full ecs
-%option 8bit nodefault yylineno
-%x COMMAND HELP STRING PARAM ASSIGN_VAL
-%{
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- * Released under the terms of the GNU GPL v2.0.
*/
+%option nostdinit noyywrap never-interactive full ecs
+%option 8bit nodefault yylineno
+%x ASSIGN_VAL HELP STRING
+%{
#include <assert.h>
#include <limits.h>
#include <unistd.h>
#include "lkc.h"
+#include "zconf.tab.h"
#define YY_DECL static int yylex1(void)
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;
int str = 0;
int ts, i;
-[ \t]*#.*\n |
-[ \t]*\n {
- return T_EOL;
-}
-[ \t]*#.*
-. {
- unput(yytext[0]);
- BEGIN(COMMAND);
-}
-
-
-<COMMAND>{
- {n}+ {
- const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
- current_pos.file = current_file;
- current_pos.lineno = yylineno;
- if (id && id->flags & TF_COMMAND) {
- BEGIN(PARAM);
- return id->token;
- }
- alloc_string(yytext, yyleng);
- yylval.string = text;
- return T_WORD;
- }
- ({n}|$)+ {
- /* this token includes at least one '$' */
- yylval.string = expand_token(yytext, yyleng);
- if (strlen(yylval.string))
- 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; }
- [[:blank:]]+
- . warn_ignored_character(*yytext);
- \n {
- BEGIN(INITIAL);
- return T_EOL;
- }
-}
+#.* /* ignore comment */
+[ \t]* /* whitespaces */
+\\\n /* escaped new line */
+\n return T_EOL;
+"allnoconfig_y" return T_ALLNOCONFIG_Y;
+"bool" return T_BOOL;
+"choice" return T_CHOICE;
+"comment" return T_COMMENT;
+"config" return T_CONFIG;
+"def_bool" return T_DEF_BOOL;
+"def_tristate" return T_DEF_TRISTATE;
+"default" return T_DEFAULT;
+"defconfig_list" return T_DEFCONFIG_LIST;
+"depends" return T_DEPENDS;
+"endchoice" return T_ENDCHOICE;
+"endif" return T_ENDIF;
+"endmenu" return T_ENDMENU;
+"help"|"---help---" return T_HELP;
+"hex" return T_HEX;
+"if" return T_IF;
+"imply" return T_IMPLY;
+"int" return T_INT;
+"mainmenu" return T_MAINMENU;
+"menu" return T_MENU;
+"menuconfig" return T_MENUCONFIG;
+"modules" return T_MODULES;
+"on" return T_ON;
+"option" return T_OPTION;
+"optional" return T_OPTIONAL;
+"prompt" return T_PROMPT;
+"range" return T_RANGE;
+"select" return T_SELECT;
+"source" return T_SOURCE;
+"string" return T_STRING;
+"tristate" return T_TRISTATE;
+"visible" return T_VISIBLE;
+"||" return T_OR;
+"&&" return T_AND;
+"=" return T_EQUAL;
+"!=" return T_UNEQUAL;
+"<" return T_LESS;
+"<=" return T_LESS_EQUAL;
+">" return T_GREATER;
+">=" return T_GREATER_EQUAL;
+"!" return T_NOT;
+"(" return T_OPEN_PAREN;
+")" return T_CLOSE_PAREN;
+":=" return T_COLON_EQUAL;
+"+=" return T_PLUS_EQUAL;
+\"|\' {
+ str = yytext[0];
+ new_string();
+ BEGIN(STRING);
+ }
+{n}+ {
+ alloc_string(yytext, yyleng);
+ yylval.string = text;
+ return T_WORD;
+ }
+({n}|$)+ {
+ /* this token includes at least one '$' */
+ yylval.string = expand_token(yytext, yyleng);
+ if (strlen(yylval.string))
+ return T_WORD;
+ free(yylval.string);
+ }
+. warn_ignored_character(*yytext);
<ASSIGN_VAL>{
[^[:blank:]\n]+.* {
.
}
-<PARAM>{
- "modules" return T_MODULES;
- "defconfig_list" return T_DEFCONFIG_LIST;
- "allnoconfig_y" return T_ALLNOCONFIG_Y;
- "&&" return T_AND;
- "||" return T_OR;
- "(" return T_OPEN_PAREN;
- ")" return T_CLOSE_PAREN;
- "!" return T_NOT;
- "=" return T_EQUAL;
- "!=" return T_UNEQUAL;
- "<=" return T_LESS_EQUAL;
- ">=" return T_GREATER_EQUAL;
- "<" return T_LESS;
- ">" return T_GREATER;
- \"|\' {
- str = yytext[0];
- new_string();
- BEGIN(STRING);
- }
- \n BEGIN(INITIAL); return T_EOL;
- {n}+ {
- const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
- if (id && id->flags & TF_PARAM) {
- return id->token;
- }
- alloc_string(yytext, yyleng);
- yylval.string = text;
- return T_WORD;
- }
- ({n}|$)+ {
- /* this token includes at least one '$' */
- yylval.string = expand_token(yytext, yyleng);
- if (strlen(yylval.string))
- return T_WORD;
- free(yylval.string);
- }
- #.* /* comment */
- \\\n ;
- [[:blank:]]+
- . warn_ignored_character(*yytext);
-}
-
<STRING>{
"$".* append_expanded_string(yytext);
[^$'"\\\n]+ {
}
\'|\" {
if (str == yytext[0]) {
- BEGIN(PARAM);
+ BEGIN(INITIAL);
yylval.string = text;
return T_WORD_QUOTE;
} else
repeat:
token = yylex1();
- /* Do not pass unneeded T_EOL to the parser. */
- if ((prev_token == T_EOL || prev_token == T_HELPTEXT) && token == T_EOL)
- goto repeat;
+ if (prev_token == T_EOL || prev_token == T_HELPTEXT) {
+ if (token == T_EOL) {
+ /* Do not pass unneeded T_EOL to the parser. */
+ goto repeat;
+ } else {
+ /*
+ * For the parser, update file/lineno at the first token
+ * of each statement. Generally, \n is a statement
+ * terminator in Kconfig, but it is not always true
+ * because \n could be escaped by a backslash.
+ */
+ current_pos.file = current_file;
+ current_pos.lineno = yylineno;
+ }
+ }
+
+ 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;
projects / carl9170fw.git / blobdiff