new backquote syntax
diff --git a/src/cmd/acid/lex.c b/src/cmd/acid/lex.c
index ed7f459..f265d6c 100644
--- a/src/cmd/acid/lex.c
+++ b/src/cmd/acid/lex.c
@@ -342,6 +342,33 @@
}
int
+bqsymbol(void)
+{
+ int c;
+ char *p;
+ Lsym *s;
+
+ symbol[0] = 0;
+ p = symbol;
+ while((c = lexc()) != '`'){
+ if(c == Eof)
+ error("eof in backquote");
+ if(c == '\n')
+ error("newline in backquote");
+ *p++ = c;
+ }
+ if(p >= symbol+sizeof symbol)
+ sysfatal("overflow in bqsymbol");
+ *p = 0;
+
+ s = look(symbol);
+ if(s == 0)
+ s = enter(symbol, Tid);
+ yylval.sym = s;
+ return s->lexval;
+}
+
+int
yylex(void)
{
int c;
@@ -360,6 +387,9 @@
}
return Eof;
+ case '`':
+ return bqsymbol();
+
case '"':
eatstring();
return Tstring;
