X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2FDEVEL%2Fpxp%2Fpxp%2Flexers%2Fpxp_lex_content_string.src;fp=helm%2FDEVEL%2Fpxp%2Fpxp%2Flexers%2Fpxp_lex_content_string.src;h=1eb76a40dc3179ccc2e7a443d378c00b7c99b702;hb=c03d2c1fdab8d228cb88aaba5ca0f556318bebc5;hp=0000000000000000000000000000000000000000;hpb=758057e85325f94cd88583feb1fdf6b038e35055;p=helm.git

diff --git a/helm/DEVEL/pxp/pxp/lexers/pxp_lex_content_string.src b/helm/DEVEL/pxp/pxp/lexers/pxp_lex_content_string.src
new file mode 100644
index 000000000..1eb76a40d
--- /dev/null
+++ b/helm/DEVEL/pxp/pxp/lexers/pxp_lex_content_string.src
@@ -0,0 +1,71 @@
+(* $Id$
+ * ----------------------------------------------------------------------
+ *
+ *)
+
+
+{
+  open Pxp_types
+  open Pxp_lexer_types
+
+#insert open_pxp_lex_aux_*.src
+#insert pxp_lex_aux.src
+
+}
+
+#insert pxp_lex_defs_*.def
+
+(* This lexer is used to expand and normalize attribute values: *)
+
+rule scan_content_string = parse
+    '&' name ';'
+      { let s = Lexing.lexeme lexbuf in
+	ERef (String.sub s 1 (String.length s - 2)) }
+  | "&#" ascii_digit+ ";"
+      { let s = Lexing.lexeme lexbuf in
+	CRef (int_of_string (String.sub s 2 (String.length s - 3))) }
+  | "&#x" ascii_hexdigit+ ";"
+      { let s = Lexing.lexeme lexbuf in
+	CRef (int_of_string ("0x" ^ String.sub s 3 (String.length s - 4))) }
+  | '&'
+      { raise(WF_error("The character '&' must be written as '&'")) }
+  | printable_character_except_amp_lt+
+      { CharData (Lexing.lexeme lexbuf) }
+  | '\009'
+      { CRef 32 }
+  | '\013' '\010'
+      { CRef(-1)   (* A special case *)
+      }
+  | '\013'
+      { CRef 32 }
+  | '\010'
+      { CRef 32 }
+  | '<'
+      { 
+	(* Depending on the situation, '<' may be legal or not: *)
+	CharData "<" 
+      }
+  | eof
+      { Eof }
+  | _
+      { raise Netconversion.Malformed_code }
+
+
+(* ======================================================================
+ * History:
+ * 
+ * $Log$
+ * Revision 1.1  2000/11/17 09:57:32  lpadovan
+ * Initial revision
+ *
+ * Revision 1.3  2000/08/14 22:18:34  gerd
+ * 	Bad_character_stream -> Netconversion.Malformed_code
+ *
+ * Revision 1.2  2000/05/29 23:53:12  gerd
+ * 	Updated because Markup_* modules have been renamed to Pxp_*.
+ *
+ * Revision 1.1  2000/05/20 20:33:25  gerd
+ * 	Initial revision.
+ *
+ * 
+ *)