www_form_encode/2

SWI-Prolog Did You Know Did you know? SWI-Prolog supports tabling (SLG resolution)

Search Documentation:

Predicate www_form_encode/2

HOME
DOWNLOAD
DOCUMENTATION
- Manual
- Packages
- FAQ
- Command line
- PlDoc
- Bluffers▶
- License
- Publications
- Rev 7 Extensions
TUTORIALS
- Beginner▶
- Advanced▶
- Web applications▶
- Semantic web▶
  - ClioPatria
  - RDF namespaces
- Graphics▶
  - XPCE
  - GUI options
- Machine learning▶
  - Probabilistic Logic Programming
- External collections▶
  - Meta level tutorials
- For packagers▶
  - Linux packages
COMMUNITY
COMMERCIAL
WIKI
- Login
- View changes
- Sandbox
- Wiki help
- All tags

Documentation
- Reference manual
  - The SWI-Prolog library
    - library(url): Analysing and constructing URL
- Packages

Availability::- use_module(library(url)).(can be autoloaded)

[det]www_form_encode(+Value, -XWWWFormEncoded)

[det]www_form_encode(-Value, +XWWWFormEncoded)

En/decode to/from application/x-www-form-encoded. Encoding encodes all characters except RFC 3986 unreserved (ASCII alnum (see code_type/2)), and one of "-._~" using percent encoding. Newline is mapped to %OD%OA. When decoding, newlines appear as a single newline (10) character.

Note that a space is encoded as %20 instead of +. Decoding decodes both to a space.

deprecated: Use uri_encoded/3 for new code.