X-Git-Url: https://jxself.org/git/?p=carl9170fw.git;a=blobdiff_plain;f=config%2Fzconf.l;h=eec4a5a97639d509104da10d367e95fa9039eadd;hp=62a0973bee034f4c4fd23bd16f2f1c131665fe3c;hb=800db6e4d8853227062024e8d842f962924d39a6;hpb=c9645e9489aac917a4883ddecc857b1c6fcc2c38

diff --git a/config/zconf.l b/config/zconf.l
index 62a0973..eec4a5a 100644
--- a/config/zconf.l
+++ b/config/zconf.l
@@ -16,6 +16,8 @@
 
 #include "lkc.h"
 
+#define YY_DECL		static int yylex1(void)
+
 #define START_STRSIZE	16
 
 static struct {
@@ -23,6 +25,7 @@ static struct {
 	int lineno;
 } current_pos;
 
+static int prev_token = T_EOL;
 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",
-	        zconf_curname(), zconf_lineno(), chr);
+	        current_file->name, yylineno, chr);
 }
 %}
 
@@ -88,12 +91,6 @@ n	[A-Za-z0-9_-]
 	return T_EOL;
 }
 [ \t]*#.*
-
-
-[ \t]+	{
-	BEGIN(COMMAND);
-}
-
 .	{
 	unput(yytext[0]);
 	BEGIN(COMMAND);
@@ -112,11 +109,18 @@ n	[A-Za-z0-9_-]
 		}
 		alloc_string(yytext, yyleng);
 		yylval.string = text;
-		return T_VARIABLE;
+		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); 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); return T_EQUAL; }
+	":="	{ BEGIN(ASSIGN_VAL); return T_COLON_EQUAL; }
+	"+="	{ BEGIN(ASSIGN_VAL); return T_PLUS_EQUAL; }
 	[[:blank:]]+
 	.	warn_ignored_character(*yytext);
 	\n	{
@@ -136,6 +140,9 @@ n	[A-Za-z0-9_-]
 }
 
 <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;
@@ -174,26 +181,13 @@ n	[A-Za-z0-9_-]
 	\\\n	;
 	[[:blank:]]+
 	.	warn_ignored_character(*yytext);
-	<<EOF>> {
-		BEGIN(INITIAL);
-	}
 }
 
 <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 + 1, yyleng - 1);
-		yylval.string = text;
-		return T_WORD_QUOTE;
-	}
 	\\.?	{
 		append_string(yytext + 1, yyleng - 1);
 	}
@@ -209,11 +203,15 @@ n	[A-Za-z0-9_-]
 		fprintf(stderr,
 			"%s:%d:warning: multi-line strings not supported\n",
 			zconf_curname(), zconf_lineno());
+		unput('\n');
 		BEGIN(INITIAL);
-		return T_EOL;
+		yylval.string = text;
+		return T_WORD_QUOTE;
 	}
 	<<EOF>>	{
 		BEGIN(INITIAL);
+		yylval.string = text;
+		return T_WORD_QUOTE;
 	}
 }
 
@@ -264,6 +262,12 @@ n	[A-Za-z0-9_-]
 }
 
 <<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;
@@ -273,6 +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;