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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2018-2022 Saxonica Limited
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is "Incompatible With Secondary Licenses", as defined by the Mozilla Public License, v. 2.0.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
package net.sf.saxon.lib;
import net.sf.saxon.om.NameChecker;
import net.sf.saxon.om.NamespaceResolver;
import net.sf.saxon.om.QNameException;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.type.ValidationException;
import net.sf.saxon.value.BigDecimalValue;
import javax.xml.transform.OutputKeys;
import java.math.BigDecimal;
import java.util.Properties;
import java.util.StringTokenizer;
/**
* Provides string constants that can be used to set
* output properties for a Transformer, or to retrieve
* output properties from a Transformer or Templates object.
* These keys are private Saxon keys that supplement the standard keys
* defined in javax.xml.transform.OutputKeys. As well as Saxon extension
* attributes, the list includes new attributes defined in XSLT 2.0 which
* are not yet supported in JAXP
*
* Note that for JAXP compatibility, the names of properties use Clark format,
* that is {uri}local. However, from 10.0, the values of properties
* containing QNames, such as cdata-section-elements, use EQName
* format, that is Q{uri}local.
*/
public class SaxonOutputKeys {
/**
* This class is not instantiated
*/
private SaxonOutputKeys() {
}
/**
* String constant representing the saxon:xquery output method name
*/
/*@NotNull*/ public static final String SAXON_XQUERY_METHOD = "Q{http://saxon.sf.net/}xquery";
/**
* String constant representing the saxon:base64Binary output method name
*/
/*@NotNull*/ public static final String SAXON_BASE64_BINARY_METHOD = "Q{http://saxon.sf.net/}base64Binary";
/**
* String constant representing the saxon:hexBinary output method name
*/
/*@NotNull*/ public static final String SAXON_HEX_BINARY_METHOD = "Q{http://saxon.sf.net/}hexBinary";
/**
* String constant representing the saxon:xml-to-json output method name
*/
/*@NotNull*/ public static final String SAXON_XML_TO_JSON_METHOD = "Q{http://saxon.sf.net/}xml-to-json";
/**
* allow-duplicate-names = yes|no.
* Defines whether duplicate keys are allowed in a JSON map (new in 3.1)
*/
/*@NotNull*/ public static final String ALLOW_DUPLICATE_NAMES = "allow-duplicate-names";
/**
* build-tree = yes|no.
* Defines whether the raw output is used to build an XML document tree
*/
/*@NotNull*/ public static final String BUILD_TREE = "build-tree";
/**
* saxon:indent-spaces = integer.
* Defines the number of spaces used for indentation of output
*/
/*@NotNull*/ public static final String INDENT_SPACES = "{http://saxon.sf.net/}indent-spaces";
/**
* saxon:internal-dtd-subset = string.
* Contains the internal subset of the DTD, which is output as-is by the serializer
*/
/*@NotNull*/ public static final String INTERNAL_DTD_SUBSET = "{http://saxon.sf.net/}internal-dtd-subset";
/**
* saxon:line-length = integer.
* Defines the desired maximum line length used when indenting output
*/
/*@NotNull*/ public static final String LINE_LENGTH = "{http://saxon.sf.net/}line-length";
/**
* saxon:single-quotes = boolean.
* Indicates that attributes should be delimited by apostrophes rather than quotation marks
*/
/*@NotNull*/ public static final String SINGLE_QUOTES = "{http://saxon.sf.net/}single-quotes";
/**
* suppress-indentation = list of element names
* Defines elements within which no indentation will occur
*/
/*@NotNull*/ public static final String SUPPRESS_INDENTATION = "suppress-indentation";
/**
* html-version = decimal
* Defines the version of HTML. For the XHTML output method this allows separate
* specification of the XHTML version and the XML version. This is a new serialization
* parameter in the draft 3.0 specification.
*/
public static final String HTML_VERSION = "html-version";
/**
* item-separator = string
* Relevant to XQuery, where an arbitrary sequence can be serialized; defines a separator
* to be inserted between successive items in the sequence.
*/
public static final String ITEM_SEPARATOR = "item-separator";
/**
* json-node-output-method = method-name
* Defines the serialization method for nodes encountered while serializing as JSON
*/
/*@NotNull*/ public static final String JSON_NODE_OUTPUT_METHOD = "json-node-output-method";
/**
* saxon:attribute-order = list of attribute names
* Defines an ordering for attributes in the serialized output. Any attribute present in the list
* will appear correctly ordered according to the list; other attributes will be ordered first by namespace,
* then by local name.
*/
/*@NotNull*/ public static final String ATTRIBUTE_ORDER = "{http://saxon.sf.net/}attribute-order";
/**
* saxon:canonical = yes/no
* When used in conjunction with the XML output method, delivers the output in C14N canonical form.
* Any serialization properties inconsistent with C14N (for example, encoding, indent, or character maps) are
* ignored if saxon:canonical=yes is specified. Provisions of the W3C serialization specification
* (for example, requiring the use of empty element tags) are also ignored.
* @since 9.9
*/
/*@NotNull*/ public static final String CANONICAL = "{http://saxon.sf.net/}canonical";
/**
* saxon:property-order = list of strings
* Defines an ordering for properties in the serialized JSON output of a map. Any property present in the list
* will appear correctly ordered according to the list; other attributes will be ordered by name.
*/
/*@NotNull*/ public static final String PROPERTY_ORDER = "{http://saxon.sf.net/}property-order";
/**
* saxon:double-space = list of element names
* Defines elements that will have an extra blank line added before the start tag, in addition
* to normal indentation
*/
/*@NotNull*/ public static final String DOUBLE_SPACE = "{http://saxon.sf.net/}double-space";
/**
* saxon:newline = string
* Defines the sequence of characters used to represent a newline when using the text
* output method
*/
/*@NotNull*/ public static final String NEWLINE = "{http://saxon.sf.net/}newline";
/**
* stylesheet-version. This serialization parameter is set automatically by the XSLT processor
* to the value of the version attribute on the principal stylesheet module. This is because
* in backwards compatibility mode (version="1.0") the default output method for an XHTML result
* document is XML rather than XHTML.
*/
/*@NotNull*/ public static final String STYLESHEET_VERSION = "{http://saxon.sf.net/}stylesheet-version";
/**
* use-character-map = list-of-qnames.
* Defines the character maps used in this output definition. The QNames
* are represented in EQName notation as Q{uri}local-name.
*/
/*@NotNull*/ public static final String USE_CHARACTER_MAPS = "use-character-maps";
/**
* include-content-type = "yes" | "no". This attribute is defined in XSLT 2.0
* Indicates whether the META tag is to be added to HTML output
*/
/*@NotNull*/ public static final String INCLUDE_CONTENT_TYPE = "include-content-type";
/**
* undeclare-prefixes = "yes" | "no". This attribute is defined in XSLT 2.0
* Indicates XML 1.1 namespace undeclarations are to be output when required
*/
/*@NotNull*/ public static final String UNDECLARE_PREFIXES = "undeclare-prefixes";
/**
* escape-uri-attributes = "yes" | "no". This attribute is defined in XSLT 2.0
* Indicates whether HTML attributes of type URI are to be URI-escaped
*/
/*@NotNull*/ public static final String ESCAPE_URI_ATTRIBUTES = "escape-uri-attributes";
/**
* representation = rep1[;rep2].
* Indicates the preferred way of representing non-ASCII characters in HTML
* and XML output. rep1 is for characters in the range 128-256, rep2 for those
* above 256.
*/
/*@NotNull*/ public static final String CHARACTER_REPRESENTATION = "{http://saxon.sf.net/}character-representation";
/**
* saxon:next-in-chain = URI.
* Indicates that the output is to be piped into another XSLT stylesheet
* to perform another transformation. The auxiliary property NEXT_IN_CHAIN_BASE_URI
* records the base URI of the stylesheet element where this attribute was found.
*/
/*@NotNull*/ public static final String NEXT_IN_CHAIN = "{http://saxon.sf.net/}next-in-chain";
/*@NotNull*/ public static final String NEXT_IN_CHAIN_BASE_URI = "{http://saxon.sf.net/}next-in-chain-base-uri";
/**
* parameter-document = URI.
* Indicates that the output is to be piped into another XSLT stylesheet
* to perform another transformation. The auxiliary property NEXT_IN_CHAIN_BASE_URI
* records the base URI of the stylesheet element where this attribute was found.
*/
/*@NotNull*/ public static final String PARAMETER_DOCUMENT = "parameter-document";
/*@NotNull*/ public static final String PARAMETER_DOCUMENT_BASE_URI = "{http://saxon.sf.net/}parameter-document-base-uri";
/**
* byte-order-mark = yes|no.
* Indicates whether UTF-8/UTF-16 output is to start with a byte order mark. Values are "yes" or "no",
* default is "no"
*/
/*@NotNull*/ public static final String BYTE_ORDER_MARK = "byte-order-mark";
/**
* normalization-form = NFC|NFD|NFKC|NFKD|non.
*
Indicates that a given Unicode normalization form (or no normalization) is required.
*/
/*@NotNull*/ public static final String NORMALIZATION_FORM = "normalization-form";
/**
* recognize-binary = yes|no.
*
If set to "yes", and the output is being written using output method "text", Saxon will recognize
* two processing instructions <?hex XXXX?> and <b64 XXXX?> containing binary data encoded
* as a hexBinary or base64 string respectively. The corresponding strings will be decoded as characters
* in the encoding being used for the output file, and will be written out to the output without checking
* that they represent valid XML strings.
*/
/*@NotNull*/ public static final String RECOGNIZE_BINARY = "{http://saxon.sf.net/}recognize-binary";
/**
* saxon:require-well-formed = yes|no.
* Indicates whether a user-supplied ContentHandler requires the stream of SAX events to be
* well-formed (that is, to have a single element node and no text nodes as children of the root).
* The default is "no".
*/
/*@NotNull*/ public static final String REQUIRE_WELL_FORMED = "{http://saxon.sf.net/}require-well-formed";
/**
* supply-source-locator = yes|no.
* If set to "yes", and the output is being sent to a SAXResult (or to a user-supplied content handler),
* indicates that the SAX Locator made available to the ContentHandler will contain information about the
* location of the context node in the source document as well as the location in the stylesheet or query.
*/
/*@NotNull*/ public static final String SUPPLY_SOURCE_LOCATOR = "{http://saxon.sf.net/}supply-source-locator";
/**
* wrap="yes"|"no".
* This property is only available in the XQuery API. The value "yes" indicates that the result
* sequence produced by the query is to be wrapped, that is, each item in the result is represented
* as a separate element. This format allows any sequence to be represented as an XML document,
* including for example sequences consisting of parentless attribute nodes.
*/
/*@NotNull*/ public static final String WRAP = "{http://saxon.sf.net/}wrap-result-sequence";
/**
* Property saxon:unfailing used to indicate that serialization should not fail. This is used when a serialization method such
* as XML or JSON is invoked from the ADAPTIVE serialization method, and it tailors the error-handling behaviour
* of the subsidiary output method. There is nothing to stop the property being set directly by the user, though
* (at least in the XSLT case) the resulting behaviour is non-conformant. The values of the property are yes/no.
*/
public static final String UNFAILING = "{http://saxon.sf.net/}unfailing";
/**
* Process a serialization property whose value is a list of element names, for example cdata-section-elements
*
*
* @param value The value of the property as written
* @param nsResolver The namespace resolver to use; may be null if prevalidated is set or if names are supplied
* in EQName format
* @param useDefaultNS True if unprefixed names are to be treated as being in the default namespace
* @param prevalidated true if the property has already been validated
* @param allowStar true if the pseudo-name "*" is permitted; it will be retained in the output
* @param errorCode The error code to return in the event of problems
* @return The list of element names with lexical QNames replaced by EQName names, starting with a single space
* @throws XPathException if any error is found in the list of element names, for example, an undeclared namespace prefix
*/
/*@NotNull*/
public static String parseListOfNodeNames(
String value, /*@Nullable*/ NamespaceResolver nsResolver, boolean useDefaultNS, boolean prevalidated, /*@NotNull*/ boolean allowStar, String errorCode)
throws XPathException {
StringBuilder s = new StringBuilder();
StringTokenizer st = new StringTokenizer(value, " \t\n\r", false);
while (st.hasMoreTokens()) {
String displayname = st.nextToken();
if (allowStar && "*".equals(displayname)) {
s.append(' ').append(displayname);
} else if (prevalidated || (nsResolver == null)) {
s.append(' ').append(displayname);
} else if (displayname.startsWith("Q{")) {
s.append(' ').append(displayname);
} else {
try {
String[] parts = NameChecker.getQNameParts(displayname);
String muri = nsResolver.getURIForPrefix(parts[0], useDefaultNS);
if (muri == null) {
throw new XPathException("Namespace prefix '" + parts[0] + "' has not been declared", errorCode);
}
s.append(" Q{").append(muri).append('}').append(parts[1]);
} catch (QNameException err) {
throw new XPathException("Invalid QName. " + err.getMessage(), errorCode);
}
}
}
return s.toString();
}
/**
* Ask whether a particular serialization property is to be considered as string-valued,
* in which case the value is used exactly as specified without any whitespace stripping.
*
* The logic here is a little pragmatic.
* For XSLT (xsl:output and xsl:result-document) the properties doctype-system, doctype-public,
* item-separator, and media-type have string type and whitespace should therefore be retained.
* For values in a parameter document, doctype-system is not whitespace stripped (and is restricted
* by a pattern); doctype-public is whitespace-stripped; media-type is whitespace-stripped
* For values in an fn:serialize parameter map, doctype-system, doctype-public, encoding,
* item-separator, media-type, and version are non-stripped strings
* XQuery output declarations follow the rules for parameter documents
* Pragmatically, it makes sense to be consistent. Including whitespace in doctype-system,
* doctype-public, encoding, version, or media-type is never useful. So we apply
* whitespace-stripping to all properties other than item-separator.
*
* @param key the property name, in Clark notation
* @return true if the property is retained as written without whitespace stripping
*/
public static boolean isUnstrippedProperty(String key) {
return ITEM_SEPARATOR.equals(key) || NEWLINE.equals(key);
}
/**
* Examine the already-validated properties to see whether the html-version property is present
* with the decimal value 5.; used to decide whether to produce XHTML 5.0 in the XHTML output
* method.
*
* @param properties the properties to be examined
* @return true if the properties include html-version="5.0". The property is a decimal value, so
* it can also be written, for example, "5" or "+5.00".
*/
public static boolean isXhtmlHtmlVersion5(Properties properties) {
String htmlVersion = properties.getProperty(SaxonOutputKeys.HTML_VERSION);
try {
return htmlVersion != null &&
((BigDecimalValue)BigDecimalValue.makeDecimalValue(htmlVersion, false).asAtomic())
.getDecimalValue().equals(BigDecimal.valueOf(5));
} catch (ValidationException e) {
return false;
}
}
/**
* Examine the already-validated properties to see whether the html-version property is present
* with the decimal value 5.0, or if absent, the version property is present with the value 5.0.
* Used to decide whether to produce HTML5 output in the HTML output method.
*
* @param properties the properties to be examined
* @return true if the properties include html-version="5.0". The property is a decimal value, so
* it can also be written, for example, "5" or "+5.00".
*/
public static boolean isHtmlVersion5(Properties properties) {
String htmlVersion = properties.getProperty(SaxonOutputKeys.HTML_VERSION);
if (htmlVersion == null) {
htmlVersion = properties.getProperty(OutputKeys.VERSION);
}
if (htmlVersion != null) {
try {
return ((BigDecimalValue)BigDecimalValue.makeDecimalValue(htmlVersion, false).asAtomic())
.getDecimalValue().equals(BigDecimal.valueOf(5));
} catch (ValidationException e) {
return false;
}
} else {
return true; // Change in 10.0 to make HTML5 the default
}
}
public static boolean isBuildTree(Properties properties) {
String buildTreeProperty = properties.getProperty("build-tree");
if (buildTreeProperty != null) {
return "yes".equals(buildTreeProperty);
}
String method = properties.getProperty("method");
return !("json".equals(method) || "adaptive".equals(method));
}
}