X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=discover%2Fgrub2%2Flexer.l;h=6c0a456e6503137f2be5c466e2b57d396fc3d33e;hp=18d16672e59d4c07019cbcb3ce3d8215ca0fa2da;hb=d808f5d2ec8e232d736a5f811d647df91e2a5b43;hpb=0ac0cc8dbd8c3687880f3115ae41f9903e9f2333

diff --git a/discover/grub2/lexer.l b/discover/grub2/lexer.l
index 18d1667..6c0a456 100644
--- a/discover/grub2/lexer.l
+++ b/discover/grub2/lexer.l
@@ -1,15 +1,18 @@
 
 %{
+#include "grub2.h"
 #include "parser.h"
 #include <talloc/talloc.h>
 %}
 
 %option nounput noinput
+%option batch never-interactive
 %option warn
 %option noyywrap
 %option stack noyy_top_state
 %option reentrant
 %option bison-bridge
+%option yylineno
 %option noyyalloc noyyfree noyyrealloc
 %option extra-type="struct grub2_parser *"
 %option header-file="lexer.h"
@@ -35,6 +38,7 @@ VARNAME ([[:alpha:]][_[:alnum:]]*|[0-9]|[\?@\*#])
 "do"         return TOKEN_DO;
 "done"       return TOKEN_DONE;
 "elif"       return TOKEN_ELIF;
+"else"       return TOKEN_ELSE;
 "esac"       return TOKEN_ESAC;
 "fi"         return TOKEN_FI;
 "for"        return TOKEN_FOR;
@@ -50,16 +54,19 @@ VARNAME ([[:alpha:]][_[:alnum:]]*|[0-9]|[\?@\*#])
 
  /* anything that's not a metachar: return as a plain word */
 {WORD}	{
-		yylval->strval = talloc_strdup(yyscanner, yytext);
-		yylval->expand = 0;
+		yylval->word = create_word_text(yyget_extra(yyscanner), yytext);
 		return TOKEN_WORD;
 	}
 
 \${VARNAME} |
 \$\{{VARNAME}\} {
-		yylval->strval = talloc_strdup(yyscanner, yytext);
-		yylval->expand = 1;
-		yylval->split = 1;
+		if (yytext[1] == '{') {
+			yytext[yyleng-1] = '\0';
+			yytext++;
+		}
+		yytext++;
+		yylval->word = create_word_var(yyget_extra(yyscanner), yytext,
+						true);
 		return TOKEN_WORD;
 	}
 
@@ -69,12 +76,10 @@ VARNAME ([[:alpha:]][_[:alnum:]]*|[0-9]|[\?@\*#])
 	}
 <sqstring>\' {
 		yy_pop_state(yyscanner);
-		return TOKEN_WORD;
 	}
 <sqstring>[^']+ {
-		yylval->expand = 0;
-		yylval->split = 0;
-		yylval->strval = talloc_strdup(yyscanner, yytext);
+		yylval->word = create_word_text(yyget_extra(yyscanner), yytext);
+		return TOKEN_WORD;
 	}
 
  /* double-quoted strings: return a single, expanded word token */
@@ -83,15 +88,25 @@ VARNAME ([[:alpha:]][_[:alnum:]]*|[0-9]|[\?@\*#])
 	}
 <dqstring>\" {
 		yy_pop_state(yyscanner);
+	}
+<dqstring>([^"\$]|\\\")+ {
+		yylval->word = create_word_text(yyget_extra(yyscanner), yytext);
 		return TOKEN_WORD;
 	}
-<dqstring>([^"]|\\\")+ {
-		yylval->expand = 1;
-		yylval->split = 0;
-		yylval->strval = talloc_strdup(yyscanner, yytext);
+<dqstring>\${VARNAME} |
+<dqstring>\$\{{VARNAME}\} {
+		if (yytext[1] == '{') {
+			yytext[yyleng-1] = '\0';
+			yytext++;
+		}
+		yytext++;
+		yylval->word = create_word_var(yyget_extra(yyscanner), yytext,
+						false);
+		return TOKEN_WORD;
 	}
 
 
+
  /* blocks */
 "{"	return '{';
 "}"	return '}';