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# Copyright (C) 2003-2004, 2007-2021 Free Software Foundation, Inc.
# This file is part of GNU Emacs.
# GNU Emacs is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# GNU Emacs 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 General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
default namespace this = "http://thaiopensource.com/ns/locating-rules/1.0"
namespace local = ""
start = locatingRules
locatingRules = element locatingRules { common, rule* }
rule =
\include
# | group
| applyFollowingRules
| documentElement
# | doctypePublicId
| \namespace
| uri
| transformURI
# | typeIdProcessingInstruction
| \default
| typeId
# | typeIdBase
| extensionRule
## Group of rules. Useful with xml:base.
group = element group { common, rule* }
\include =
element include {
common,
attribute rules { xsd:anyURI }
}
applyFollowingRules =
element applyFollowingRules {
common,
attribute ruleType {
"documentElement"
| "doctypePublicId"
| "namespace"
| "uri"
| "transformURI"
| "typeIdProcessingInstruction"
| "default"
}
}
documentElement =
## Matches if the prefix and/or local name of document element
## match the values of the prefix and localName attributes.
element documentElement {
common,
nameAtts,
targetAtt
}
## If there's no prefix attribute, then only the local name must match.
## If there's no local name attribute, then only the prefix must match.
nameAtts = (prefixAtt, localNameAtt?) | localNameAtt
## prefix="" matches if the document element has no prefix.
prefixAtt = attribute prefix { (xsd:NCName - "xmlns") | "" }
localNameAtt = attribute localName { xsd:NCName - "xmlns" }
doctypePublicId =
## Matches if the document has a DOCTYPE declaration with a public
## identifier that, after normalization, matches the value of the
## publicId attribute.
element doctypePublicId {
common,
attribute publicId { publicIdValue },
targetAtt
}
publicIdValue =
xsd:token {
## Newline and tab are excluded, because pattern applies to
## the post-normalization value.
pattern = "[\-'()+,./:=?;!*#@$_%a-zA-Z0-9 ]*"
}
# This is separate from documentElement so it can be distinguished
# by applyFollowingRules.
\namespace =
## Matches if the document element has a namespace URI equal to the value
## of the ns attribute. A document element with no namespace matches if
## the value of the ns attribute is the empty string.
element namespace {
common,
attribute ns { xsd:string },
targetAtt
}
uri =
## Matches based on the URI of the document.
element uri {
common,
(resourceAtt | patternAtt),
targetAtt
}
## Matches if it can be determined that the document resource is
## the same resource as that identified by the value of the resource
## attribute. In determining this, the implementation should apply
## the semantics of the URI scheme used by the URI.
resourceAtt = attribute resource { xsd:anyURI }
## Matches if the document's URI matches the pattern specified
## by the pattern attribute. A * in the path component matches
## zero or more characters other than / (after resolving escapes).
## If the pattern is a relative URI, it means that there must
## be some URI such that when the pattern is resolved relative
## to that URI, it matches the document's URI. Thus an empty
## pattern will always match.
patternAtt = attribute pattern { uriPattern }
## A pattern for a URI. Same syntax as a URI, except that a * in
## the path component has a special meaning.
uriPattern = xsd:anyURI
transformURI =
## Generates a URI for the related resource by transforming
## the URI of the document. Matches if the transformation
## yields a valid URI that identifies an existing resource.
element transformURI {
common,
## Semantics are the same as the pattern attribute of the uri element.
attribute fromPattern { uriPattern },
## The result of the transformation is produced from the toPattern
## by replacing each * by the string that matched the corresponding
## * in the toPattern. The toPattern is appended to the initial
## part of the document's URI that was not explicitly matched
## by fromPattern.
attribute toPattern { uriPattern }
}
\default =
## Always matches.
element default {
common,
targetAtt
}
## A document can be mapped onto a URI either indirectly via a typeId
## or directly.
targetAtt = uriAtt | typeIdAtt
## Specifies the URI of the related resource.
## xml:base is used if it's relative.
uriAtt = attribute uri { xsd:anyURI }
## Specifies an identifier of the type of document. typeId and
## typeIdBase rules will be used to map this to a URI.
typeIdAtt = attribute typeId { typeIdValue }
## A type identifier can be anything convenient (e.g. a public identifier,
## a URL or just a string with no formal structure). Whitespace is
## normalized like a public identifier before comparing type identifiers
## for equality.
typeIdValue = xsd:token
typeIdProcessingInstruction =
## Matches if there's a processing instruction in the prolog
## before any DOCTYPE declaration whose target is the value of
## the target attribute. The value of the processing instruction
## is interpreted as a typeId, which will be mapped to a
## URI as normal.
element typeIdProcessingInstruction {
common,
attribute target { xsd:NCName }
}
typeId =
## Maps a typeId onto a URI.
element typeId {
common,
attribute id { typeIdValue },
targetAtt
}
typeIdBase =
## Used to map a typeId onto a URI. First, any URI reserved characters
## are URI encoded. If the append attribute is specified, it is appended.
## This is then treated as a URI. If relative, it is resolved using
## the applicable base URI as usual. If the resulting URI identifies
## an existing resource, then the typeId is mapped to this resource.
## This is intended to be useful with file URIs.
element typeIdBase {
common,
attribute append { xsd:string }?
}
extensionRule =
element * - this:* {
attribute * { text }*, (text|anyElement)*
}
anyElement = element * { attribute * { text }*, (text|anyElement)* }
common =
# attribute xml:base { xsd:anyURI }?,
attribute * - (xml:base|this:*|local:*) { text }*
|
