From dc5032ed00875c1cf4f978ddeb07e5967f9488f8 Mon Sep 17 00:00:00 2001
From: Pascal Rigaux <pixel@mandriva.com>
Date: Wed, 5 Feb 2003 13:12:04 +0000
Subject: allow -x with no parameter, but advise not to use it

---
 perl_checker.src/lexer.mll        | 2 +-
 perl_checker.src/parser.mly       | 1 +
 perl_checker.src/parser_helper.ml | 7 +++++++
 3 files changed, 9 insertions(+), 1 deletion(-)

(limited to 'perl_checker.src')

diff --git a/perl_checker.src/lexer.mll b/perl_checker.src/lexer.mll
index 424a422..e5d8af5 100644
--- a/perl_checker.src/lexer.mll
+++ b/perl_checker.src/lexer.mll
@@ -586,7 +586,7 @@ rule token = parse
 
 | ident ":" { LABEL(lexeme lexbuf, pos lexbuf) }
 
-| '-' [ 'a'-'z' 'A'-'Z' ] [ ' ' '(' ] { putback lexbuf 1; ONE_SCALAR_PARA(lexeme lexbuf, pos lexbuf) }
+| '-' [ 'a'-'z' 'A'-'Z' ] [ ' ' '(' ';' ] { putback lexbuf 1; ONE_SCALAR_PARA(lexeme lexbuf, pos lexbuf) }
 
 | ['0'-'9'] ['0'-'9' '_']* ('.' ['0'-'9'] ['0'-'9' '_']*)+ 
 | 'v' ['0'-'9'] ['0'-'9' '_']* ('.' ['0'-'9'] ['0'-'9' '_']*)* 
diff --git a/perl_checker.src/parser.mly b/perl_checker.src/parser.mly
index 47aebfe..080295c 100644
--- a/perl_checker.src/parser.mly
+++ b/perl_checker.src/parser.mly
@@ -257,6 +257,7 @@ term:
 | ONE_SCALAR_PARA restricted_subscripted   {call_one_scalar_para $1 [fst $2], sp_pos_range $1 $2}
 | ONE_SCALAR_PARA parenthesized            {call_one_scalar_para $1 (sndfst $2), sp_pos_range $1 $2}
 | ONE_SCALAR_PARA word_paren parenthesized {call_one_scalar_para $1 [call(Deref(I_func, fst $2), sndfst $3)], sp_pos_range $1 $3}
+| ONE_SCALAR_PARA {call_one_scalar_para $1 [], snd $1}
 
 /* Constructors for anonymous data */
 
diff --git a/perl_checker.src/parser_helper.ml b/perl_checker.src/parser_helper.ml
index e1633fb..9230074 100644
--- a/perl_checker.src/parser_helper.ml
+++ b/perl_checker.src/parser_helper.ml
@@ -606,6 +606,13 @@ let call(e, para) = call_func false (e, para)
 
 
 let call_one_scalar_para (e, (_, pos)) para =
+  let para =
+    match para with
+    | [] ->
+	  warn_rule (sprintf "please use \"%s $_\" instead of \"%s\"" e e) ;
+	  [var_dollar_ (raw_pos2pos pos)]
+    | _ -> para
+  in
   let pri =
     match e with
     | "defined" -> P_expr
-- 
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