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GHC 9.10.3 · lts/ghc-9.10.x · c74966e · 2026-09-27

Modulehxt-9.3.1.22Haskell2010

Text.XML.HXT.Arrow.XmlState.SystemConfig

system configuration and common options options

  • 42 values
  • Packagehxt-9.3.1.22
  • Exports42
  • LanguageHaskell2010
  • LicenceMIT
  • SourceSystemConfig.hs

Specify the set of accepted mime types.

All contents of documents for which the mime type is not found in this list are discarded.

withMimeTypeFile filename : input option, set the mime type table for file: documents by given file. The format of this config file must be in the syntax of a debian linux "mime.types" config file

Force a given mime type for all file contents.

The mime type for file access will then not be computed by looking into a mime.types file

valuewithWarnings :: Bool -> SysConfig
#

withWarnings yes/no : system option, issue warnings during reading, HTML parsing and processing, default is yes

valuewithRemoveWS :: Bool -> SysConfig
#

withRemoveWS yes/no : read and write option, remove all whitespace, used for document indentation, default is no

withParseByMimeType yes/no : read option, select the parser by the mime type of the document (pulled out of the HTTP header).

When the mime type is set to "text/html" the configured HTML parser is taken, when it's set to "text/xml" or "text/xhtml" the configured XML parser is taken. If the mime type is something else, no further processing is performed, the contents is given back to the application in form of a single text node. If the default document encoding is set to isoLatin1, this even enables processing of arbitray binary data.

withSubstDTDEntities yes/no: read option, substitute general entities defined in DTD, default is yes. switching this option and the validate option off can lead to faster parsing, because then there is no need to access the DTD

withSubstHTMLEntities yes/no: read option, substitute general entities defined in HTML DTD, default is no. switching this option on and the substDTDEntities and validate options off can lead to faster parsing because there is no need to access a DTD, but still the HTML general entities are substituted

withIgnoreNoneXmlContents yes/no : input option, ignore document contents of none XML/HTML documents.

This option can be useful for implementing crawler like applications, e.g. an URL checker. In those cases net traffic can be reduced.

withDefaultBaseURI URI , input option, set the default base URI

This option can be useful when parsing documents from stdin or contained in a string, and interpreting relative URIs within the document

valuewithProxy :: String -> SysConfig
#

withProxy "host:port" : input option, configure a proxy for HTTP access, e.g. www-cache:3128

withOutputEncoding encoding , output option, default is the default input encoding or utf8, if input encoding is not set

withOutputXML : output option, default writing

Default is writing XML: quote special XML chars >,<,",',& where neccessary, add XML processing instruction and encode document with respect to withOutputEncoding

Write XHTML: quote all special XML chars, use HTML entity refs or char refs for none ASCII chars

Write XML: quote only special XML chars, don't substitute chars by HTML entities, and don't generate empty elements for HTML elements, which may contain any contents, e.g. src=.../script instead of src=... /

Configure compression and decompression for binary serialization/deserialization. First component is the compression function applied after serialization, second the decompression applied before deserialization.