[ide] Move common protocol library to its own folder/object.

The `ide` folder contains two different binaries, the language server
`coqidetop` and `coqide` itself.

Even if these binaries are in the same folder, the only thing they
have in common is that they link to the protocol files. In the OCaml
world, having "doubly" linked files in the same project is considered
a bit of an ugly practice, and some build tools such as Dune disallow it.q

Thus, to clean up the build, we move the common protocol files to its
own library `ideprotocol`.

This helps towards Dune integration and towards having an IDE
standalone target, such as the one that was implemented here:
https://github.com/ejgallego/coqide-exp

1 files changed, 44 insertions, 0 deletions

diff --git a/ide/protocol/xml_lexer.mli b/ide/protocol/xml_lexer.mli
new file mode 100644
index 000000000..e61cb055f
--- /dev/null
+++ b/ide/protocol/xml_lexer.mli
@@ -0,0 +1,44 @@
+(*
+ * Xml Light, an small Xml parser/printer with DTD support.
+ * Copyright (C) 2003 Nicolas Cannasse (ncannasse@motion-twin.com)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *)
+
+type error =
+	| EUnterminatedComment
+	| EUnterminatedString
+	| EIdentExpected
+	| ECloseExpected
+	| ENodeExpected
+	| EAttributeNameExpected
+	| EAttributeValueExpected
+	| EUnterminatedEntity
+
+exception Error of error
+
+type token =
+	| Tag of string * (string * string) list * bool
+	| PCData of string
+	| Endtag of string
+	| Eof
+
+type pos = int * int * int * int
+
+val init : Lexing.lexbuf -> unit 
+val close : unit -> unit
+val token : Lexing.lexbuf -> token
+val pos : Lexing.lexbuf -> pos
+val restore : pos -> unit