Did you know ...
Search Documentation:
Predicate atom_prefix/2
HOME
DOWNLOAD
SWI-Prolog
Sources/building
Docker images
Add-ons
Browse GIT
DOCUMENTATION
Manual
Packages
FAQ
Command line
PlDoc
Bluffers
▶
Prolog syntax
PceEmacs
HTML generation
License
Publications
Rev 7 Extensions
TUTORIALS
Beginner
▶
Getting started
Learn Prolog Now!
Simply Logical
Debugger
Development tools
Advanced
▶
Modules
Grammars (DCGs)
clp(fd)
Printing messages
PlDoc
Web applications
▶
Web applications
Let's Encrypt!
Pengines
Semantic web
▶
ClioPatria
RDF namespaces
Graphics
▶
XPCE
GUI options
Machine learning
▶
Probabilistic Logic Programming
External collections
▶
Meta level tutorials
For packagers
▶
Linux packages
COMMUNITY
Forum & mailing list
Blog
News
Report a bug
Submit a patch
Submit an add-on
Roadmap (on GitHub)
External links
Contributing
Code of Conduct
Contributors
SWI-Prolog items
COMMERCIAL
WIKI
Login
View changes
Sandbox
Wiki help
All tags
Documentation
Reference manual
Built-in Predicates
Analysing and Constructing Atoms
atom_codes/2
atom_chars/2
char_code/2
number_chars/2
number_codes/2
atom_number/2
name/2
term_to_atom/2
atom_to_term/3
atom_concat/3
atomic_concat/3
atomic_list_concat/2
atomic_list_concat/3
atom_length/2
atom_prefix/2
sub_atom/5
sub_atom_icasechk/3
Packages
Availability:
built-in
[deprecated]
atom_prefix
(
+Atom, +Prefix
)
True if
Atom
starts with the characters from
Prefix
. Its behaviour is equivalent to
?- sub_atom(
Atom
, 0, _, _,
Prefix
)
. Deprecated.