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-rw-r--r--src/libexpr/lexer.l6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/libexpr/lexer.l b/src/libexpr/lexer.l
index cf90f2939..b7c1d19f8 100644
--- a/src/libexpr/lexer.l
+++ b/src/libexpr/lexer.l
@@ -124,7 +124,7 @@ inherit { return INHERIT; }
<STRING>. return yytext[0]; /* just in case: shouldn't be reached */
\'\'(\ *\n)? { BEGIN(IND_STRING); return IND_STRING_OPEN; }
-<IND_STRING>([^\$\']|\$[^\{\']|\'[^\'])+ {
+<IND_STRING>([^\$\']|\$[^\{\']|\'[^\'\$])+ {
yylval->t = makeIndStr(toATerm(yytext));
return IND_STR;
}
@@ -142,6 +142,10 @@ inherit { return INHERIT; }
}
<IND_STRING>\$\{ { BEGIN(INITIAL); return DOLLAR_CURLY; }
<IND_STRING>\'\' { BEGIN(INITIAL); return IND_STRING_CLOSE; }
+<IND_STRING>\' {
+ yylval->t = makeIndStr(toATerm("'"));
+ return IND_STR;
+ }
<IND_STRING>. return yytext[0]; /* just in case: shouldn't be reached */
{PATH} { yylval->t = toATerm(yytext); return PATH; /* !!! alloc */ }