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Commit 04a72414 authored by Pietro Abate's avatar Pietro Abate
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[r2005-03-09 15:29:36 by afrisch] Get rid of PXP dependency 

Original author: afrisch
Date: 2005-03-09 15:32:20+00:00
parent 3238c9c0
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INSTALL
View file @ 04a72414
......@@ -26,43 +26,41 @@ Mandatory packages:
Before compiling CDuce, you need to install recent releases of the
following packages:
ocaml => 3.08.1
ocaml >= 3.08.1
http://caml.inria.fr/ocaml/distrib.html
findlib => 1.0.3
findlib >= 1.0.3
http://www.ocaml-programming.de/packages
ulex => 0.4
ulex >= 0.4
http://www.cduce.org/download
pcre-ocaml => 5.03
pcre-ocaml >= 5.03
http://www.ai.univie.ac.at/~markus/home/ocaml_sources.html
ocamlnet => 0.98
ocamlnet >= 0.98
http://www.ocaml-programming.de/packages
pxp => 1.1.95
http://www.ocaml-programming.de/packages/documentation/pxp/index_dev.html
Additional optional packages:
-----------------------------
* If you want to load xml, html, and schema files remotely on the
web (http, https, ftp, ...: e.g. load_html "http://www.cduce.org") you will
need one of:
* You'll probably want to build CDuce with an XML parser. You will need one of:
pxp >= 1.1.95
http://www.ocaml-programming.de/packages/documentation/pxp/index_dev.html
ocaml-expat >= 0.1.0
http://home.wanadoo.nl/maas/ocaml/
* CDuce can use one the the ocurl and netclient library to fetch external
URLs. You will need one of:
ocurl => 0.15
ocurl >= 0.15
http://sourceforge.net/projects/ocurl/
netclient => 0.90.1
netclient >= 0.90.1
http://www.ocaml-programming.de/programming/netclient.html
netclient support only the http protocol.
curl supports in addition https, ftp, and other protocols.
* You can also use the expat parser instead of PXP to load XML documents
(PXP is still needed):
ocaml-expat => 0.1.0
http://home.wanadoo.nl/maas/ocaml/
Important notes:
----------------
......@@ -75,11 +73,12 @@ Important notes:
>= 5.03 recommended but previous versions may work
- PXP:
CDuce requires a development version >= 1.1.94.2.
Notes: It is enough to build support UTF8 and ISO-8859-1 ocamllex-lexers:
It is enough to build support for UTF8 and ISO-8859-1 ocamllex-lexers:
./configure -without-wlex -without-wlex-compat -lexlist utf8,iso88591
You can also build pxp with wlex support (more compact code). This
can be done by installing wlex runtime support library *before* pxp
can be done by installing wlex runtime support library *before* pxp
http://www.eleves.ens.fr/home/frisch/soft.html#wlex
and build pxp -with-wlex*. When building CDuce you still have the
choice whether to use wlex or ocamllex (to choose wlex,
......@@ -92,11 +91,6 @@ Important notes:
you may also need to install libexpat (http://expat.sourceforge.net/)
Efficiency issues:
- PXP: ocamllex lexers are more efficient than wlex lexers.
------------------------------------------------------------------------------
Compilation
------------------------------------------------------------------------------
......@@ -130,9 +124,6 @@ You need a GNU Make (or equivalent). The Makefile defines the following goals:
- make dtd2cduce
compiles the dtd2cduce tools (converts DTD to CDuce types)
- make cduce_validate
compiles the schema validation tool
- make doc
compiles in the subdirectory web/doc the HTML documentation for CDuce
......@@ -176,21 +167,30 @@ subdirectories)
Note for GODI users:
====================
The GODI distribution *does* install the files in
$(LOCALBASE)/lib/ocaml/compiler-lib.
The GODI distribution provided the required files by default.
The configure script will detect them automatically.
Note for Debian users:
======================
The Debian package ocaml-compiler-libs provides the required files.
The configure script will detect them automatically.
------------------------------------------------------------------------------
Note on using the expat parser
Note on XML parsers
------------------------------------------------------------------------------
CDuce can uses two XML parsers: PXP and expat. PXP is needed
to build CDuce, and expat support can be additionnaly added.
When CDuce is built with expat support, it uses by default expat to
load XML files. You can still use PXP by adding "--no expat" to
When CDuce is built with support for both expat and PXP, it uses by default
expat to parse XML files. You can still use PXP by adding "--no expat" to
the CDuce command line.
Note: the current wrapper for expat does not support inclusion
of external entities. Moreover, the error messages in case of
ill-formed XML are less informative than PXP's.
- error messages:
The error messages provided by expat when parsing ill-formed XML documents
are less informative than those given by PXP.
- efficiency:
* expat is more efficient than PXP, and produces smaller executables.
* for PXP, ocamllex lexers are more efficient than wlex lexers.
Makefile.distrib
View file @ 04a72414
......@@ -6,12 +6,7 @@ ifeq ($(NATIVE),true)
all: cduce_lib.cmxa
endif
PACKAGES = pxp-engine pxp-lex-iso88591 ulex camlp4 num cgi pcre netstring
ifeq ($(PXP_WLEX), true)
PACKAGES += pxp-wlex-utf8
else
PACKAGES += pxp-lex-utf8
endif
PACKAGES = ulex camlp4 num cgi pcre netstring
# Call make with VERBOSE=true to get a trace of commands
......@@ -195,8 +190,15 @@ ifneq ($(NETCLIENT), false)
PACKAGES += netclient
endif
OBJECTS += runtime/cduce_pxp.cmo
ifeq ($(PXP),true)
OBJECTS += runtime/cduce_pxp.cmo
PACKAGES += pxp-engine pxp-lex-iso88591
ifeq ($(PXP_WLEX), true)
PACKAGES += pxp-wlex-utf8
else
PACKAGES += pxp-lex-utf8
endif
endif
ifeq ($(EXPAT), true)
OBJECTS += runtime/cduce_expat.cmo
PACKAGES += expat
......
configure.ml
View file @ 04a72414
......@@ -25,6 +25,7 @@ Optional features:
Available features:
ocamlopt use ocamlopt instead of ocamlc to build CDuce
pxp_wlex use wlexers for parsing utf8 with PXP [default: false]
pxp support for the PXP XML parser
expat support for the expat XML parser
curl support for the libcurl library
netclient support for the netclient library
......@@ -49,6 +50,7 @@ if not_distrib then print_string "
let features =
[ "ocamlopt", ref `auto;
"mliface", ref `auto;
"pxp", ref `auto;
"expat", ref `auto;
"curl", ref `auto;
"netclient", ref `auto;
......@@ -208,6 +210,7 @@ let ml_interface =
loop dirs
let pxp = check_feature "pxp" (check_pkg "pxp")
let expat = check_feature "expat" (check_pkg "expat")
let curl = check_feature "curl" (check_pkg "curl")
let netclient = check_feature "netclient" (check_pkg "netclient")
......@@ -231,6 +234,16 @@ let curl,netclient =
false,false
| c,n -> c,n
let pxp,expat =
match pxp,expat with
| true,true ->
warning "Both PXP and expat are available. Will build both and use expat by default.";
false,true
| false,false ->
warning "No package for parsing XML documents.";
false,false
| c,n -> c,n
let required_packages =
["camlp4"; "num";
"pcre"; "ulex"; "cgi"; "netstring";
......@@ -250,6 +263,7 @@ let () =
| `no -> fprintf out "ML_INTERFACE=false\n"
| `flat d -> fprintf out "ML_INTERFACE=flat\nML_MODULES=%s\n" d
| `tree d -> fprintf out "ML_INTERFACE=tree\nML_MODULES=%s\n" d);
fprintf out "PXP=%b\n" pxp;
fprintf out "EXPAT=%b\n" expat;
fprintf out "CURL=%b\n" curl;
fprintf out "NETCLIENT=%b\n" netclient;
......
depend
View file @ 04a72414
......@@ -97,17 +97,17 @@ schema/schema_types.cmo: types/atoms.cmi misc/encodings.cmi misc/ns.cmi \
schema/schema_types.cmx: types/atoms.cmx misc/encodings.cmx misc/ns.cmx \
runtime/value.cmx schema/schema_types.cmi
schema/schema_xml.cmo: misc/encodings.cmi parser/location.cmi misc/ns.cmi \
schema/schema_pcre.cmi parser/url.cmi schema/schema_xml.cmi
schema/schema_pcre.cmi schema/schema_xml.cmi
schema/schema_xml.cmx: misc/encodings.cmx parser/location.cmx misc/ns.cmx \
schema/schema_pcre.cmx parser/url.cmx schema/schema_xml.cmi
schema/schema_pcre.cmx schema/schema_xml.cmi
schema/schema_common.cmo: types/atoms.cmi misc/encodings.cmi types/ident.cmo \
types/intervals.cmi misc/ns.cmi schema/schema_pcre.cmi \
schema/schema_types.cmi schema/schema_xml.cmi types/types.cmi \
runtime/value.cmi schema/schema_common.cmi
misc/ns.cmi schema/schema_pcre.cmi schema/schema_types.cmi \
schema/schema_xml.cmi types/types.cmi runtime/value.cmi \
schema/schema_common.cmi
schema/schema_common.cmx: types/atoms.cmx misc/encodings.cmx types/ident.cmx \
types/intervals.cmx misc/ns.cmx schema/schema_pcre.cmx \
schema/schema_types.cmx schema/schema_xml.cmx types/types.cmx \
runtime/value.cmx schema/schema_common.cmi
misc/ns.cmx schema/schema_pcre.cmx schema/schema_types.cmx \
schema/schema_xml.cmx types/types.cmx runtime/value.cmx \
schema/schema_common.cmi
schema/schema_builtin.cmo: types/atoms.cmi types/builtin_defs.cmi \
misc/encodings.cmi types/intervals.cmi misc/ns.cmi \
schema/schema_common.cmi schema/schema_pcre.cmi schema/schema_types.cmi \
......@@ -270,46 +270,28 @@ ocamliface/mlstub.cmx: types/atoms.cmx types/builtin_defs.cmx \
driver/librarian.cmx parser/location.cmx ocamliface/mltypes.cmx \
misc/ns.cmx types/sequence.cmx typing/typer.cmx types/types.cmx \
ocamliface/mlstub.cmi
parser/cduce_netclient.cmo: driver/config.cmi parser/location.cmi \
parser/url.cmi
parser/cduce_netclient.cmx: driver/config.cmx parser/location.cmx \
parser/url.cmx
parser/cduce_curl.cmo: driver/config.cmi parser/url.cmi
parser/cduce_curl.cmx: driver/config.cmx parser/url.cmx
runtime/cduce_pxp.cmo: driver/config.cmi runtime/load_xml.cmi \
parser/location.cmi parser/url.cmi runtime/cduce_pxp.cmi
parser/location.cmi schema/schema_xml.cmi parser/url.cmi \
runtime/cduce_pxp.cmi
runtime/cduce_pxp.cmx: driver/config.cmx runtime/load_xml.cmx \
parser/location.cmx parser/url.cmx runtime/cduce_pxp.cmi
parser/location.cmx schema/schema_xml.cmx parser/url.cmx \
runtime/cduce_pxp.cmi
runtime/cduce_expat.cmo: driver/config.cmi runtime/load_xml.cmi \
parser/location.cmi parser/url.cmi runtime/cduce_expat.cmi
runtime/cduce_expat.cmx: driver/config.cmx runtime/load_xml.cmx \
parser/location.cmx parser/url.cmx runtime/cduce_expat.cmi
query/query_aggregates.cmo: types/builtin_defs.cmi types/intervals.cmi \
compile/operators.cmi types/sequence.cmi runtime/value.cmi
query/query_aggregates.cmx: types/builtin_defs.cmx types/intervals.cmx \
compile/operators.cmx types/sequence.cmx runtime/value.cmx
query/query.cmo: parser/ast.cmo types/atoms.cmi types/builtin_defs.cmi \
types/chars.cmi types/ident.cmo types/intervals.cmi parser/location.cmi \
misc/ns.cmi parser/parser.cmi types/types.cmi query/query.cmi
query/query.cmx: parser/ast.cmx types/atoms.cmx types/builtin_defs.cmx \
types/chars.cmx types/ident.cmx types/intervals.cmx parser/location.cmx \
misc/ns.cmx parser/parser.cmx types/types.cmx query/query.cmi
query/query_parse.cmo: parser/ast.cmo types/atoms.cmi types/ident.cmo \
parser/location.cmi parser/parser.cmi query/query.cmi types/sequence.cmi \
types/types.cmi
query/query_parse.cmx: parser/ast.cmx types/atoms.cmx types/ident.cmx \
parser/location.cmx parser/parser.cmx query/query.cmx types/sequence.cmx \
types/types.cmx
query/query_run.cmo: driver/cduce.cmi query/query.cmi
query/query_run.cmx: driver/cduce.cmx query/query.cmx
driver/run.cmo: types/builtin.cmi driver/cduce.cmi driver/config.cmi \
misc/html.cmi types/ident.cmo driver/librarian.cmi parser/location.cmi \
misc/state.cmi misc/stats.cmi parser/ulexer.cmi runtime/value.cmi
driver/run.cmx: types/builtin.cmx driver/cduce.cmx driver/config.cmx \
misc/html.cmx types/ident.cmx driver/librarian.cmx parser/location.cmx \
misc/state.cmx misc/stats.cmx parser/ulexer.cmx runtime/value.cmx
schema/schema_components.cmo: misc/encodings.cmi misc/ns.cmi \
runtime/value.cmi
schema/schema_components.cmx: misc/encodings.cmx misc/ns.cmx \
runtime/value.cmx
schema/schema_import.cmo: misc/encodings.cmi misc/ns.cmi \
schema/schema_components.cmo
schema/schema_import.cmx: misc/encodings.cmx misc/ns.cmx \
schema/schema_components.cmx
driver/start.cmo: driver/run.cmo
driver/start.cmx: driver/run.cmx
driver/webiface.cmo: driver/cduce.cmi driver/examples.cmo misc/html.cmi \
......@@ -379,8 +361,7 @@ schema/schema_types.cmi: types/atoms.cmi misc/encodings.cmi misc/ns.cmi \
runtime/value.cmi
schema/schema_xml.cmi: misc/encodings.cmi misc/ns.cmi
schema/schema_common.cmi: types/atoms.cmi misc/encodings.cmi types/ident.cmo \
types/intervals.cmi misc/ns.cmi schema/schema_types.cmi types/types.cmi \
runtime/value.cmi
misc/ns.cmi schema/schema_types.cmi types/types.cmi runtime/value.cmi
schema/schema_builtin.cmi: misc/encodings.cmi misc/ns.cmi \
schema/schema_types.cmi types/types.cmi runtime/value.cmi
schema/schema_validator.cmi: misc/encodings.cmi schema/schema_types.cmi \
......@@ -391,7 +372,7 @@ types/externals.cmi: types/types.cmi
typing/typer.cmi: parser/ast.cmo misc/custom.cmo types/ident.cmo \
parser/location.cmi misc/ns.cmi types/patterns.cmi typing/typed.cmo \
types/types.cmi runtime/value.cmi
runtime/load_xml.cmi: parser/url.cmi runtime/value.cmi
runtime/load_xml.cmi: runtime/value.cmi
runtime/run_dispatch.cmi: types/patterns.cmi runtime/value.cmi
runtime/explain.cmi: types/types.cmi runtime/value.cmi
runtime/print_xml.cmi: misc/ns.cmi runtime/value.cmi
......@@ -406,7 +387,6 @@ driver/librarian.cmi: compile/compile.cmi types/ident.cmo typing/typer.cmi \
types/types.cmi runtime/value.cmi
driver/cduce.cmi: misc/ns.cmi runtime/value.cmi
ocamliface/mltypes.cmi: ocamliface/asttypes.cmo types/types.cmi
query/query.cmi: parser/ast.cmo
ocamliface/mltypes.cmi: ocamliface/asttypes.cmo types/types.cmi
schema/schema_types.cmi: types/atoms.cmi misc/encodings.cmi misc/ns.cmi \
runtime/value.cmi
runtime/cduce_pxp.ml
View file @ 04a72414
......@@ -52,15 +52,15 @@ let alt = new resolve_to_any_obj_channel ~channel_of_id ()
let src_of_uri uri = XExtID (System uri,None,alt)
let load_pxp uri =
let load_pxp handlers uri =
try
let mgr = create_entity_manager pxp_config (src_of_uri uri) in
process_entity pxp_config
(`Entry_document[`Extend_dtd_fully]) mgr pxp_handle_event;
(`Entry_document[`Extend_dtd_fully]) mgr handlers;
with exn ->
raise (Location.Generic (Pxp_types.string_of_exn exn))
let use () = Load_xml.xml_parser := load_pxp
let use () = Load_xml.xml_parser := load_pxp pxp_handle_event
let () =
Config.register
......@@ -68,4 +68,12 @@ let () =
"PXP XML parser"
use
let () = Schema_xml.src_of_uri := src_of_uri
let () =
Schema_xml.xml_parser :=
(fun uri f g ->
load_pxp
(function
| E_start_tag (name,att,_,_) -> f name att
| E_end_tag (_,_) -> g ()
| _ -> ())
uri)
runtime/load_xml.ml
View file @ 04a72414
......@@ -46,10 +46,6 @@ let attrib att =
let elem (tag_ns,tag) att child =
Xml (Atom (Atoms.V.mk tag_ns tag), Record (attrib att), child)
(*
class warner = object method warn w = print_endline ("PXP WARNING: " ^ w) end
*)
type stack =
| Element of Value.t * stack
| Start of Ns.qname * (Ns.qname * Utf8.t) list * Ns.table * stack
......
runtime/print_xml.ml
View file @ 04a72414
(* Print XML documents, using PXP *)
(* Print XML documents *)
(* The write_*_function are inspired from Pxp_aux.ml *)
open Netconversion
let write_markup_string ~to_enc buf s =
let s' = if to_enc = `Enc_utf8 then s
else convert
~in_enc:`Enc_utf8
~out_enc:to_enc
~subst:(fun n ->
failwith ("Cannot represent code point " ^ string_of_int n))
s
in
Buffer.add_string buf s'
let write_data_string ~to_enc buf s =
let write_part i len =
if (len > 0) then
if to_enc = `Enc_utf8
then Buffer.add_substring buf s i len
else
let s' =
convert
~in_enc:`Enc_utf8
~out_enc:to_enc
~subst:(fun n -> "&#" ^ string_of_int n ^ ";")
~range_pos:i ~range_len:len s
in
Buffer.add_string buf s'
in
let i = ref 0 in
for k = 0 to String.length s - 1 do
match s.[k] with
| ('&' | '<' | '>' | '"' | '%') as c ->
write_part !i (k - !i);
begin match c with
'&' -> Buffer.add_string buf "&amp;"
| '<' -> Buffer.add_string buf "&lt;"
| '>' -> Buffer.add_string buf "&gt;"
| '"' -> Buffer.add_string buf "&quot;"
| '%' -> Buffer.add_string buf "&#37;" (* reserved in DTDs *)
| _ -> assert false
end;
i := k+1
| _ -> ()
done;
write_part !i (String.length s - !i)
(*************)
open Pxp_aux
open Pxp_types
open Value
open Ident
module U = Encodings.Utf8
......@@ -46,18 +96,8 @@ let string_of_xml ~utf8 ns_table v =
let buffer = Buffer.create 127 in
let printer = Ns.Printer.printer ns_table in
let wms =
write_markup_string
~from_enc:`Enc_utf8
~to_enc
(`Out_buffer buffer)
and wds s =
write_data_string
~from_enc:`Enc_utf8
~to_enc
(`Out_buffer buffer)
(U.get_str s)
let wms = write_markup_string ~to_enc buffer
and wds s = write_data_string ~to_enc buffer (U.get_str s)
in
let write_att (n,v) =
wms (" " ^ (Ns.Printer.attr printer n) ^ "=\""); wds v; wms "\"" in
......@@ -143,10 +183,6 @@ let string_of_xml ~utf8 ns_table v =
Buffer.contents buffer
let print_xml ~utf8 ns_table s =
try
let s = string_of_xml ~utf8 ns_table s in
if utf8 then string_utf8 (U.mk s) else string_latin1 s
with
CDuceExn _ as exn -> raise exn
| exn -> raise (Location.Generic (Pxp_types.string_of_exn exn))
let s = string_of_xml ~utf8 ns_table s in
if utf8 then string_utf8 (U.mk s) else string_latin1 s
schema/schema_parser.ml
View file @ 04a72414
......@@ -259,8 +259,7 @@ let schema_of_uri uri =
| None ->
match _may_elem "xsd:union" n with
| Some union -> simple_union name (find_member_types union)
| None ->
error ("Unknown variety for simpleType at line " ^ (string_of_int (_line n)) ^ " uri = " ^ uri)
| None -> error "Unknown variety for simpleType"
(* look for a simple type def: try attribute "base", try "simpleType" child,
* fail *)
......
schema/schema_xml.ml
View file @ 04a72414
......@@ -4,138 +4,95 @@ open Schema_pcre
exception Error of string
let error s = raise (Error s)
let src_of_uri = ref (fun _ -> failwith "PXP support required to load XML Schema")
type node =
('a Pxp_document.node Pxp_document.extension as 'a) Pxp_document.node
module Node = struct
type t = node
let compare = Pxp_document.compare
end
let start_with s pr =
let s = Utf8.get_str s in
(String.length s >= String.length pr) &&
(String.sub s 0 (String.length pr) = pr)
let has_xsd_prefix s = start_with s "xsd:"
let xsd_namespace = Utf8.mk "http://www.w3.org/2001/XMLSchema"
let xsi_namespace = Utf8.mk "http://www.w3.org/2001/XMLSchema-instance"
let xsd_prefix = Utf8.mk "xsd"
let xsi_prefix = Utf8.mk "xsi"
let xsd = Ns.mk xsd_namespace
let xsi = Ns.mk xsi_namespace
let schema_ns_prefixes =
[ xsd_prefix, xsd_namespace; xsi_prefix, xsi_namespace ]
let spec = Pxp_tree_parser.default_namespace_spec
let new_xsd_config () =
let ns_manager = new Pxp_dtd.namespace_manager in
List.iter
(fun (p, ns) -> ns_manager#add_namespace (Utf8.get_str p) (Utf8.get_str ns))
schema_ns_prefixes;
{ Pxp_types.default_namespace_config with
Pxp_types.encoding = `Enc_utf8;
Pxp_types.enable_namespace_processing = Some ns_manager
}
let node_of src =
(Pxp_tree_parser.parse_wfdocument_entity (new_xsd_config ()) src spec) # root
let node_of_uri uri =
try node_of (!src_of_uri uri)
with exn -> raise (Location.Generic (Pxp_types.string_of_exn exn))
let xml_parser = ref (fun uri _ _ -> failwith "No active XML parser")
(* A simple tree model sufficient to parse schemas *)
type node = {
tag: string;
attrs: (Ns.qname * Utf8.t) list;
mutable children: node list;
ns: Ns.table;
father: node
}
let rec root={tag="***";
attrs=[];children=[];ns=Ns.empty_table;father=root}
let current = ref root
let start_element_handler name att =
let (table,(ns,local),attrs) = Ns.process_start_tag !current.ns name att in
let tag = if Ns.equal ns xsd then "xsd:"^(Utf8.get_str local) else "***" in
current := { tag=tag; attrs=attrs; children=[]; ns=table; father= !current }
let end_element_handler () =
(!current).children <- List.rev (!current).children;
let f = (!current).father in
f.children <- !current :: f.children;
current := f
let node_of_uri uri =
current := root;
root.children <- [];
!xml_parser uri start_element_handler end_element_handler;
let c = root.children in
root.children <- [];
match c with
| [r] -> r
| _ -> assert false
let _may_attr name n =
try
match n#attribute name with
| Pxp_types.Value v -> Some (Utf8.mk v)
| _ -> None
with Not_found -> None
let name = (Ns.empty, Utf8.mk name) in
let rec aux = function
| [] -> None
| (nm,v)::_ when Ns.QName.equal nm name -> Some v
| _::r -> aux r
in
aux n.attrs
let _is_attr name n v =
try
match n#attribute name with
| Pxp_types.Value v' -> v = v'
| _ -> false
with Not_found -> false
match _may_attr name n with
| None -> false
| Some v' -> Utf8.get_str v' = v
let _attr name n =
match n#attribute name with
| Pxp_types.Value v -> Utf8.mk v
| _ -> error ("Attribute " ^ name ^ " is missing")
match _may_attr name n with
| Some v -> v
| None -> error ("Attribute " ^ name ^ " is missing")
let _may_elem e (n: node) =
try Some (Pxp_document.find_element e n) with Not_found -> None
let _elems e n = Pxp_document.find_all_elements e n
let _filter_elems p n =
Pxp_document.find_all (fun n -> match n#node_type with
| Pxp_document.T_element s -> List.mem s p
| _ -> false) n
let _line n = match n#position with (_,l,_) -> l
let _iter_nodes n f = n#iter_nodes f
let _iter_elems n f = n#iter_nodes
(fun n ->
match n#node_type with
| Pxp_document.T_element s -> f n s
| _ -> ()
)
let _tag n = n.tag
let _elems name n = List.filter (fun n -> n.tag = name) n.children
let _fold_elems n x f =
let x = ref x in
n#iter_nodes
(fun n ->
match n#node_type with
| Pxp_document.T_element s -> x := f !x n s
| _ -> ()
);
!x
let _tag n =
match n#node_type with
| Pxp_document.T_element s -> s
| _ -> assert false
let _has_tag n f =
match n#node_type with
| Pxp_document.T_element s -> f s