projects
/
carl9170fw.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
kconfig: refactor scanning and parsing "option" properties
[carl9170fw.git]
/
config
/
zconf.l
diff --git
a/config/zconf.l
b/config/zconf.l
index 323fb5524fe54f4c48839d7e238262b31a0a22b9..81c1f40cdee6262a04e6f2e7bbd7301f23cede15 100644
(file)
--- a/
config/zconf.l
+++ b/
config/zconf.l
@@
-16,6
+16,8
@@
#include "lkc.h"
#include "lkc.h"
+#define YY_DECL static int yylex1(void)
+
#define START_STRSIZE 16
static struct {
#define START_STRSIZE 16
static struct {
@@
-23,6
+25,7
@@
static struct {
int lineno;
} current_pos;
int lineno;
} current_pos;
+static int prev_token = T_EOL;
static char *text;
static int text_size, text_asize;
static char *text;
static int text_size, text_asize;
@@
-137,6
+140,9
@@
n [A-Za-z0-9_-]
}
<PARAM>{
}
<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_AND;
"||" return T_OR;
"(" return T_OPEN_PAREN;
@@
-175,9
+181,6
@@
n [A-Za-z0-9_-]
\\\n ;
[[:blank:]]+
. warn_ignored_character(*yytext);
\\\n ;
[[:blank:]]+
. warn_ignored_character(*yytext);
- <<EOF>> {
- BEGIN(INITIAL);
- }
}
<STRING>{
}
<STRING>{
@@
-259,6
+262,12
@@
n [A-Za-z0-9_-]
}
<<EOF>> {
}
<<EOF>> {
+ BEGIN(INITIAL);
+
+ if (prev_token != T_EOL && prev_token != T_HELPTEXT)
+ fprintf(stderr, "%s:%d:warning: no new line at end of file\n",
+ current_file->name, yylineno);
+
if (current_file) {
zconf_endfile();
return T_EOL;
if (current_file) {
zconf_endfile();
return T_EOL;
@@
-268,6
+277,24
@@
n [A-Za-z0-9_-]
}
%%
}
%%
+
+/* second stage lexer */
+int yylex(void)
+{
+ int token;
+
+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;
+
+ prev_token = token;
+
+ return token;
+}
+
static char *expand_token(const char *in, size_t n)
{
char *out;
static char *expand_token(const char *in, size_t n)
{
char *out;