Package (.wl, .m)
Background
|
|
Import and Export
- Import["file.m"] reads in a Wolfram Language package, evaluating each expression in it and returning the last one.
- Export["file.m",expr] exports a single expression to a package source file.
- The Wolfram Language always uses CharacterEncoding->"ASCII" for package source files.
- Import["file.m",elem] imports the specified element from a package source file.
- Import["file.m",{elem,suba,subb,…}] imports a subelement.
- Import["file.m",{{elem1,elem2,…}}] imports multiple elements.
- The import format can be specified with Import["file","Package"] or Import["file",{"Package",elem,…}].
- Import["file.m"] is equivalent to Get["file.m"].
- Export["file.m",expr,elem] creates a Wolfram Language source file by treating expr as specifying element elem.
- Export["file.m",{expr1,expr2,…},{{elem1,elem2,…}}] treats each expri as specifying the corresponding elemi.
- Export["file.m",expr,opt1->val1,…] exports expr with the specified option elements taken to have the specified values.
- Export["file.m",{elem1->expr1,elem2->expr2,…},"Rules"] uses rules to specify the elements to be exported.
- Put[expr1,expr2,…,"file.m"] can be used to export multiple expressions.
- See the reference pages for full general information on Import and Export.
- ImportString and ExportString support the package format.
Notebook Interface
Elements
- General Import elements:
-
"Elements" list of elements and options available in this file "Rules" full list of rules for each element and option "Options" list of rules for options, properties, and settings - Import elements:
-
"ExpressionList" evaluates all expressions and returns the results as a list "Get" reads and evaluates all expressions, returning the last one "HeldExpressions" list of unevaluated expressions "InactivatedExpressions" list of inactivated expressions "Comments" code comments - Import by default uses the "Get" element for Wolfram Language package files.
Options
Examples
Basic Examples (3)
Show the Import elements available in a sample file:
Import unevaluated expressions from this file:
Import all expressions and run them through Inactivate:
Import only the first expression from the package in Inactive form:
See Also
Related Guides
Introduced in 1988
(1.0)
| Updated in 2014 (10.0)