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kconfig: warn no new line at end of file
[carl9170fw.git]
/
config
/
zconf.l
diff --git
a/config/zconf.l
b/config/zconf.l
index 62a0973bee034f4c4fd23bd16f2f1c131665fe3c..a6caf06a6506d21648384e872c7adcd99af28b0c 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;
@@
-73,7
+76,7
@@
static void warn_ignored_character(char chr)
{
fprintf(stderr,
"%s:%d:warning: ignoring unsupported character '%c'\n",
{
fprintf(stderr,
"%s:%d:warning: ignoring unsupported character '%c'\n",
-
zconf_curname(), zconf_lineno()
, chr);
+
current_file->name, yylineno
, chr);
}
%}
}
%}
@@
-88,12
+91,6
@@
n [A-Za-z0-9_-]
return T_EOL;
}
[ \t]*#.*
return T_EOL;
}
[ \t]*#.*
-
-
-[ \t]+ {
- BEGIN(COMMAND);
-}
-
. {
unput(yytext[0]);
BEGIN(COMMAND);
. {
unput(yytext[0]);
BEGIN(COMMAND);
@@
-114,6
+111,13
@@
n [A-Za-z0-9_-]
yylval.string = text;
return T_VARIABLE;
}
yylval.string = text;
return T_VARIABLE;
}
+ ({n}|$)+ {
+ /* this token includes at least one '$' */
+ yylval.string = expand_token(yytext, yyleng);
+ if (strlen(yylval.string))
+ 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); 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; }
@@
-174,26
+178,13
@@
n [A-Za-z0-9_-]
\\\n ;
[[:blank:]]+
. warn_ignored_character(*yytext);
\\\n ;
[[:blank:]]+
. warn_ignored_character(*yytext);
- <<EOF>> {
- BEGIN(INITIAL);
- }
}
<STRING>{
"$".* append_expanded_string(yytext);
}
<STRING>{
"$".* append_expanded_string(yytext);
- [^$'"\\\n]+/\n {
- append_string(yytext, yyleng);
- yylval.string = text;
- return T_WORD_QUOTE;
- }
[^$'"\\\n]+ {
append_string(yytext, yyleng);
}
[^$'"\\\n]+ {
append_string(yytext, yyleng);
}
- \\.?/\n {
- append_string(yytext + 1, yyleng - 1);
- yylval.string = text;
- return T_WORD_QUOTE;
- }
\\.? {
append_string(yytext + 1, yyleng - 1);
}
\\.? {
append_string(yytext + 1, yyleng - 1);
}
@@
-209,11
+200,15
@@
n [A-Za-z0-9_-]
fprintf(stderr,
"%s:%d:warning: multi-line strings not supported\n",
zconf_curname(), zconf_lineno());
fprintf(stderr,
"%s:%d:warning: multi-line strings not supported\n",
zconf_curname(), zconf_lineno());
+ unput('\n');
BEGIN(INITIAL);
BEGIN(INITIAL);
- return T_EOL;
+ yylval.string = text;
+ return T_WORD_QUOTE;
}
<<EOF>> {
BEGIN(INITIAL);
}
<<EOF>> {
BEGIN(INITIAL);
+ yylval.string = text;
+ return T_WORD_QUOTE;
}
}
}
}
@@
-264,6
+259,12
@@
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;
@@
-273,6
+274,24
@@
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;