Packages

  • package root
    Definition Classes
    root
  • package info
    Definition Classes
    root
  • package kwarc
    Definition Classes
    info
  • package mmt
    Definition Classes
    kwarc
  • package api

    This is the main package of the MMT API.

    This is the main package of the MMT API.

    It holds subpackages for all data structures, data containers, and the central algorithms and services.

    Classes directly defined in the package

    Some minor classes that are used throughout MMT are defined in this package, in particular:

    • MMT URIs in the class Path and Namespace
    • processing and content errors in the class Error

    The package also contains root classes for certain types that are subclassed throughout the package. Most importantly:

    • StructuralElement: structure-level (= named) parts in the data structures for the MMT language: documents, theories, constants, ...
    • MMTTask: tasks for a single object: parsing, checking, ...
    • Rule: object-level part of the MMT language that is written in Scala

    Subpackages

    Data structures for the MMT language

    The data structures for the MMT languages are defined in 4 packages corresponding to the 4 levels: - documents: Documents and all other NarrativeElements - modules: Modules (= the toplevel declarations), in particular Theorys and Views - symbols: all Declarations inside modules, in particular Constants - objects: all anonymous Objects (e.g., formulas, functions, etc.), in particular Contexts and Terms

    The former 3 levels are jointly called 'structural' levels. All elements subclass StructuralElement, have an MMT URI, and carry an MMT URI referring to their parent in the MMT abstract syntax tree.

    Structural elements are extensible (via DerivedModules and DerivedDeclarations), and the package patterns defines declaration patterns as a built-in extension.

    All structural elements are mutable and implement the ContainerElement interface for changing their children. Objects, by contrast, are represented as immutable inductive types.(except for carrying metadata.Metadata and objects.ClientProperties). The boundary between structural elements and objects is mediated by ComponentContainers: these are mutable, owned by structural elements, and maintain objects.

    A few auxiliary data structures shifted to separate packages: - opaque: external (i.e., informal, computation) content - informal: partially outdated informal data structures - metadata: metadata annotations to all structural elements or objects

    The MMT main class and its internal state

    The package frontend contains the class Controller, which owns all state relevant for running MMT. Typically, each application creates a single instance of this class. The package also defines several other essential classes, most importantly MMT's extension (=plug-in, add-on) interfaces via the Extension class.

    The package libraries maintains the instances of MMT language data structures, in particular the Library class. Controller owns a Library, which stores all structural elements that have been loaded into memory.

    User interfaces

    The package frontend also contains the main executable classes, in particular the Shell class.

    The package gui collects all classes for building graphical user interfaces. This includes auxiliary classes for use in IDE plugins.

    The package web collects all classes for the HTTP interface of MMT.

    Physical storage of the MMT language files

    The package archives defines MMT Archives (= projects) as well as classes for building and working with archives. The latter include in particular the BuildManager and BuildTarget. Build targets include Importers and [Exporter]]s that translate between MMT and other formats.

    The package backend defines classes for maintaining archives and translating between the MMT URIs of structural elements and their physical storage locations.

    The central algorithms for processing MMT content

    The processing model of MMT consists of several major algorithms. - parser: read strings into MMT data structures - checking: check and refine MMT data structures - uom: pure computation on MMT data structures - proving: theorem proving on MMT data structures (in very early state)) - execution: imperative computation (in very, very early state) - presentation: rendering MMT data structures in user-facing formats (including HTML+presentation MathML)

    All algorithms are defined in Extensions coupled with default implementations. Moreover, all algorithms are split into two separate levels, one for structural elements and objects. See LeveledExtension.

    The package notations maintains the common code for parsing and presentation.

    The package valuebases maintains mathematical databases as a part of MMT.

    Other algorithms on the MMT data structures

    The package ontology contains a relational, semantic web-style ontology and query engine for it.

    The package moc contains change management.

    The package refactoring contains refactoring principles.

    General purpose utility functions

    The package utils defines general purpose APIs for files, URIs, HTML building, etc.

    Definition Classes
    mmt
  • package refactoring
    Definition Classes
    api
  • package linkinversion
    Definition Classes
    refactoring
  • AssumeRewritable
  • ContinuationStyle
  • LinkInversionRulesProvider
  • LinkInverter
  • LinkInverterResult
  • LinkUtils
  • ModuleCreator
  • ReferenceSubstituter
  • RewriteAs
  • RewriteConstantError
  • RewriteError
  • RewriteErrorHandler
  • RewriteUnknownError
  • SkipDeclaration

object LinkUtils

Source
LinkUtils.scala
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  10. def getDefiniensTerm(decl: Declaration): Term

    For a declaration of a Link get its definiens term, i.e.

    For a declaration of a Link get its definiens term, i.e. the assignment.

    decl

    A declaration from a link, e.g. obtained via Link.getDeclarations

    returns

    The assigned term.

    Exceptions thrown

    AssertionError If the declaration has no definiens component or that definiens component does not contain a term.

    To do

    Figure out what this function returns for non-info.kwarc.mmt.api.symbols.Constant declarations of a link, e.g. info.kwarc.mmt.api.symbols.Structure

  11. def getDomainPathFromLinkDeclarationPath(decl: GlobalName): GlobalName

    For a declaration of a link get the GlobalName to the symbol being mapped.

    For a declaration of a link get the GlobalName to the symbol being mapped.

    For flat theories and flat links (views), this is a GlobalName referring to a symbol within the domain theory. However, if the domain theory includes another theory, S, then the view might as well map symbols from S to something. Hence, the returned GlobalName can also refer to a symbol from a (transitively) included theory.

    decl

    A declaration of a link.

    returns

    The GlobalName referring to the declaration being mapped.

    Exceptions thrown

    AssertionError If the declaration's local name is not of the form LocalName(List(ComplexStep(mpath), ...)). All link declarations start with a ComplexStep in MMT.

  12. def getLinkDomainPaths(link: Link): List[GlobalName]

    As getDomainPathFromLinkDeclarationPath() but for every declaration of link as returned by Link.getDeclarations

  13. def getTermMappingForLink(link: Link)(implicit ctrl: Controller): scala.Predef.Map[GlobalName, Term]

    For a link get the mapping of the declarations.

    For a link get the mapping of the declarations.

    For example, if the link contains the assignment (c = d), then the mapping will contain OMID(path to c) -> d, where d might be an arbitrary term.

    link

    The link.

    returns

    The mapping.

  14. def hashCode(): Int
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