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221 lines
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Markdown
221 lines
16 KiB
Markdown
# Inform 7
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[Version](notes/versioning.md): 10.2.0-beta+6W28 'Krypton' (15 April 2023)
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## About Inform
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Inform is a programming language for creating interactive fiction, using natural
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language syntax. Using natural language and drawing on ideas from linguistics
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and from literate programming, Inform is widely used as a medium for literary
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writing, as a prototyping tool in the games industry, and in education, both at
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school and university level (where Inform is often assigned material for courses
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on digital narrative). It has several times ranked in the top 100 most
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influential programming languages according to the TIOBE index. Created in April
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2006, it was open-sourced in April 2022.
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Inform is itself a literate program ([written with inweb](https://github.com/ganelson/inweb)),
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one of the largest in the world. This means that a human-readable form of the
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code is continuously maintained alongside it: see ★ [Inform: The Program](https://ganelson.github.io/inform)
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Software in this repository is [copyright Graham Nelson 2006-2022](notes/copyright.md)
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except where otherwise stated, and available under the [Artistic License 2.0](https://opensource.org/licenses/Artistic-2.0).
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To consult... | Turn to...
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--------------------------------- | -----------------------------------------
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Brief news about ongoing work | [notes/working_notes.md](notes/working_notes.md)
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Licencing and copyright policy | [notes/copyright.md](notes/copyright.md)
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Branching and versioning policy | [notes/versioning.md](notes/versioning.md)
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Language evolution policy | [https://github.com/ganelson/inform-evolution](https://github.com/ganelson/inform-evolution)
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Version history and release notes | [notes/version_history.md](notes/version_history.md)
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Pending changes not yet released | [notes/release/pending.md](notes/release/pending.md)
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## Repositories
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This is the "core Inform" repository, holding source code for the compiler, and
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for everything needed to run it on the command line. However:
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* To build and test the compiler on the command line you also need Inweb and
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Intest, programs spun out from the Inform project, with their own repositories:
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* [https://github.com/ganelson/inweb](https://github.com/ganelson/inweb)
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* [https://github.com/ganelson/intest](https://github.com/ganelson/intest)
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* Most Inform authors use Inform as an app, not at the command line. While
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the UI looks similar on each platform, they are independent code-bases and each
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has its own repository:
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* [https://github.com/TobyLobster/Inform](https://github.com/TobyLobster/Inform) for MacOS, maintained by [Toby Nelson](https://github.com/TobyLobster)
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* [https://github.com/DavidKinder/Windows-Inform7](https://github.com/DavidKinder/Windows-Inform7) for Windows, maintained by [David Kinder](https://github.com/DavidKinder)
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* [https://github.com/ptomato/inform7-ide](https://github.com/ptomato/inform7-ide) for Linux, maintained by [Philip Chimento](https://github.com/ptomato)
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* Proposals for changes to Inform are at the repository:
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* [https://github.com/ganelson/inform-evolution](https://github.com/ganelson/inform-evolution)
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* The server-side content for the Inform Public Library (a selection of downloadable
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extensions displayed within the apps) is here:
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* [https://github.com/ganelson/inform-public-library](https://github.com/ganelson/inform-public-library)
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## Build Instructions
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**Caution**: The `main` branch of this repository generally holds "unstable", that is,
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unreleased work-in-progress versions of Inform. See [notes/versioning.md](notes/versioning.md).
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Make a directory in which to work: let's call this `work`. Then:
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* Change the current directory to `work`: `cd work`
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* Build Inweb as `work/inweb`: see its repository [here](https://github.com/ganelson/inweb)
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* Build Intest as `work/intest`: see its repository [here](https://github.com/ganelson/intest)
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* Clone Inform as `work/inform`: `git clone https://github.com/ganelson/inform.git`
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* Change the current directory to this: `cd inform`
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* Run a first-build script: `bash scripts/first.sh`
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* Check executables have compiled: `inblorb/Tangled/inblorb -help`
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* Run a single test case: `../intest/Tangled/intest inform7 -show Acidity`.
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* If you have time (between 5 mins and 2 hours, depending on your system), `make check`
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to run the full suite of 2500 test cases.
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## Issues and Contributions
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The 2006-2021 Inform bug tracker, powered by Mantis, has now closed, and its issues
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and comments have been migrated to a [a Jira tracker](https://inform7.atlassian.net/jira/software/c/projects/I7/issues).
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The curator of the bug tracker is Brian Rushton, and the administrator is
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Hugo Labrande.
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Note that Inweb and Intest have their own bug trackers
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([here](https://inform7.atlassian.net/jira/software/c/projects/INWEB/issues)
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and [here](https://inform7.atlassian.net/jira/software/c/projects/INTEST/issues)).
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Please do not report bugs on those to the Inform tracker, or vice versa.
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Members of the Inform community are welcome to open pull requests on this
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repository to address minor issues - for example, to fix bugs at the tracker,
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or to correct clear-cut typos or other errors. Contributions of this sort do
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not need [an Inform Evolution proposal](https://github.com/ganelson/inform-evolution),
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but anything on a larger scale is likely to.
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## Inventory of this Repository
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**"I can't help feeling that if someone had asked me before the universe began
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how it would turn out, I should have guessed something a bit less like an old
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curiosity shop and a bit more like a formal French garden - an orderly
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arrangement of straight avenues, circular walks, and geometrically shaped
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trees and hedges."** (Michael Frayn)
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Inform is not a single program, but an assemblage of programs and resources.
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Some, including the inform7 compiler itself, are "literate programs", also
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called "webs". The notation ★ marks these, and links are provided to
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their human-readable forms.
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### Source for command-line tools
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This most important contents of this repository are the source webs for the
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following command-line tools:
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* inbuild - __version 10.2.0__ - [★ Web](https://ganelson.github.io/inform/inbuild/index.html) - [▶ Documentation](https://ganelson.github.io/inform/inbuild/M-ui.html)<br>A simple build and package manager for the Inform tools.
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* inform7 - __version 10.2.0__ - [★ Web](https://ganelson.github.io/inform/inform7/index.html) - [▶ Documentation](https://ganelson.github.io/inform/inform7/M-cu.html)<br>The core compiler in a natural-language design system for interactive fiction.
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* inter - __version 10.2.0__ - [★ Web](https://ganelson.github.io/inform/inter/index.html) - [▶ Documentation](https://ganelson.github.io/inform/inter/M-ui.html)<br>For handling intermediate Inform code.
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* inblorb - __version 4.1__ - [★ Web](https://ganelson.github.io/inform/inblorb/index.html) - [▶ Documentation](https://ganelson.github.io/inform/inblorb/M-ui.html)<br>The packaging stage of the Inform 7 system, which releases a story file in the blorbed format.
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* indoc - __version 4__ - [★ Web](https://ganelson.github.io/inform/indoc/index.html) - [▶ Documentation](https://ganelson.github.io/inform/indoc/M-iti.html)<br>The documentation-formatter for the Inform 7 system.
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* inpolicy - __version 1__ - [★ Web](https://ganelson.github.io/inform/inpolicy/index.html) - [▶ Documentation](https://ganelson.github.io/inform/inpolicy/M-ui.html)<br>A lint-like tool to check up on various policies used in Inform source code.
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* inrtps - __version 2__ - [★ Web](https://ganelson.github.io/inform/inrtps/index.html) - [▶ Documentation](https://ganelson.github.io/inform/inrtps/M-ui.html)<br>A generator of HTML pages to show for run-time problem messages in Inform.
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### Kits shipped with Inform
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The following webs are the source for kits of Inter code shipped with Inform (at the subtree inform7/Internal/Inter). Kits are libraries of code needed at run-time, and whose source is written in Inform 6 notation:
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* BasicInformKit - Support for Inform as a programming language - [★ Web](https://ganelson.github.io/inform/BasicInformKit/index.html)
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* WorldModelKit - Support for modelling space, time and actions in interactive fiction - [★ Web](https://ganelson.github.io/inform/WorldModelKit/index.html)
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* EnglishLanguageKit - Support for English as the natural language used - [★ Web](https://ganelson.github.io/inform/EnglishLanguageKit/index.html)
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* CommandParserKit - Support for parsing turn-by-turn commands in interactive fiction - [★ Web](https://ganelson.github.io/inform/CommandParserKit/index.html)
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* BasicInformExtrasKit - Additional support needed only if the Standard Rules are not used - [★ Web](https://ganelson.github.io/inform/BasicInformExtrasKit/index.html)
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* DialogueKit - Additional support for dialogue (under construction) - [★ Web](https://ganelson.github.io/inform/DialogueKit/index.html)
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### Extensions shipped with Inform
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The following webs are the source for the two most important extensions shipped with Inform:
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* [Basic Inform by Graham Nelson](inform7/extensions/basic_inform) - __v1__ - [★ Web](https://ganelson.github.io/inform/basic_inform/index.html)
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* [Standard Rules by Graham Nelson](inform7/extensions/standard_rules) - __v6__ - [★ Web](https://ganelson.github.io/inform/standard_rules/index.html)
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Other extensions shipped with Inform are not presented as webs, but as single files:
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* [Basic Help Menu by Emily Short](<inform7/Internal/Extensions/Emily Short/Basic Help Menu.i7x>) - __v1__
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* [Basic Screen Effects by Emily Short](<inform7/Internal/Extensions/Emily Short/Basic Screen Effects.i7x>) - __v9__
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* [Complex Listing by Emily Short](<inform7/Internal/Extensions/Emily Short/Complex Listing.i7x>) - __v9__
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* [Glulx Image Centering by Emily Short](<inform7/Internal/Extensions/Emily Short/Glulx Image Centering.i7x>) - __v4__
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* [Glulx Text Effects by Emily Short](<inform7/Internal/Extensions/Emily Short/Glulx Text Effects.i7x>) - __v6__
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* [Inanimate Listeners by Emily Short](<inform7/Internal/Extensions/Emily Short/Inanimate Listeners.i7x>) - __v1__
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* [Locksmith by Emily Short](<inform7/Internal/Extensions/Emily Short/Locksmith.i7x>) - __v13__
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* [Menus by Emily Short](<inform7/Internal/Extensions/Emily Short/Menus.i7x>) - __v3__
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* [Punctuation Removal by Emily Short](<inform7/Internal/Extensions/Emily Short/Punctuation Removal.i7x>) - __v5__
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* [Skeleton Keys by Emily Short](<inform7/Internal/Extensions/Emily Short/Skeleton Keys.i7x>) - __v1__
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* [Epistemology by Eric Eve](<inform7/Internal/Extensions/Eric Eve/Epistemology.i7x>) - __v9__
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* [Approximate Metric Units by Graham Nelson](<inform7/Internal/Extensions/Graham Nelson/Approximate Metric Units.i7x>) - __v1__
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* [English Language by Graham Nelson](<inform7/Internal/Extensions/Graham Nelson/English Language.i7x>) - __v1__
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* [Metric Units by Graham Nelson](<inform7/Internal/Extensions/Graham Nelson/Metric Units.i7x>) - __v2__
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* [Rideable Vehicles by Graham Nelson](<inform7/Internal/Extensions/Graham Nelson/Rideable Vehicles.i7x>) - __v3__
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### Website templates and interpreters shipped with Inform
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These are templates used by Inform to release story files within a website:
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* [Classic](inform7/Internal/Templates/Classic) - An older, plainer website
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* [Standard](inform7/Internal/Templates/Standard) - The default, more modern look
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These are Javascript interpreters used to release such websites in a form which can play the story files interactively online:
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* inform7/Internal/Templates - Template websites for Inform 7's 'release as a website' feature
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* inform7/Internal/Templates/Parchment - Z-machine in Javascript - __Parchment for Inform 7 (2022.8)__ - from [https://github.com/curiousdannii/parchment], maintained by [Dannii Willis](https://github.com/curiousdannii)
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* inform7/Internal/Templates/Quixe - Glulx in Javascript - __Quixe for Inform 7 (v. 2.2.1)__ - from [https://github.com/erkyrath/quixe], maintained by [Andrew Plotkin](https://github.com/erkyrath)
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### Documentation shipped with Inform
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Two books come with the Inform apps. The source code for these books is in indoc format: the indoc tool makes those into ePubs, mini-websites, or the pseudo-websites inside the apps.
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* __Changes to Inform__ - A detailed change history of Inform 7. Ebook in Indoc format, stored at path resources/Changes.
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* __Writing with Inform and the Inform Recipe Book__ - The main Inform documentation, as seen in the apps, and in standalone Epubs. Ebook in Indoc format, stored at path resources/Documentation.
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In addition, there are:
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* resources/Outcome Pages - Inrtps uses these to generate HTML outcome pages (such as those showing Problem messages in the app)
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* resources/Sample Projects - Two small interactive fictions, 'Disenchantment Bay' and 'Onyx', presented as samples in the app
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### Retrospective builds of Inform
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New in 2022 is the ability for apps to use past instead of present versions of the
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core Inform software when compiling a project. This means the core software distribution
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needs to contain some form of those past versions - at minimum, the extensions and
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compiler tools for (say) versions 9.1, 9.2 and 9.3.
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That material is held in the "retrospective" directory. Note that documentation
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from past versions (e.g., past versions of "Writing with Inform") is not included.
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### Resources copied here from elsewhere
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Stable versions of the following are periodically copied into this repository,
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but this is not where development on them is done, and no pull requests will
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be accepted. (Note that these are not git submodules.)
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* inform6 - The Inform 6 compiler (used by I7 as a code generator). - __1641__ - from [https://github.com/DavidKinder/Inform6], maintained by [David Kinder](https://github.com/DavidKinder)
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* inform6/Tests/Assistants/dumb-frotz - A dumb-terminal Z-machine interpreter. - unversioned: modified from [Alembic Petrofsky's 1998 Teletype port of Frotz](https://github.com/sussman/ircbot-collection/tree/master/dumb-frotz)
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* inform6/Tests/Assistants/dumb-glulx/glulxe - A dumb-terminal Glulx interpreter. - __0.6.0__ - [erkyrath/glulxe](https://github.com/erkyrath/glulxe), maintained by [Andrew Plotkin](https://github.com/erkyrath)
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* inform6/Tests/Assistants/dumb-glulx/cheapglk - A basic Glk implementation to support dumb-glulxe. - __1.0.6.__ - [erkyrath/cheapglk](https://github.com/erkyrath/cheapglk), maintained by [Andrew Plotkin](https://github.com/erkyrath)
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* inblorb/Tests/Assistants/blorblib - Code for examining blorb files, including blorbscan, used here for validating inblorb's output in tests. - version 1.0.2 - by [Andrew Plotkin](https://github.com/erkyrath), but not currently elsewhere on Github
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### Binary resources (such as image files)
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* resources/Imagery/app_images - icons for the Inform app and its many associated files, in MacOS format
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* resources/Imagery/bg_images - background textures used in the Index generated by Inform
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* resources/Imagery/doc_images - miscellaneous images needed by the documentation
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* resources/Imagery/map_icons - images needed for the World pane of the Index generated by Inform
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* resources/Imagery/outcome_images - images used on outcome pages
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* resources/Imagery/scene_icons - images needed for the Scenes pane of the Index generated by Inform
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* resources/Internal/Miscellany - default cover art, the Introduction to IF and Postcard PDFs
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### Other files and folders in this repository
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* docs - Woven forms of the webs, for serving by GitHub Pages
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* scripts/inform.giscript - Inweb uses this to generate the .gitignore file at the root of the repository
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* scripts/inform.mkscript - Inweb uses this to generate the makefile at the root of the repository
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* scripts/inform.rmscript - Inweb uses this to generate the README.md file you are now reading
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### Colophon
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This README.md file was generated automatically by Inweb, and should not
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be edited. To make changes, edit inform.rmscript and re-generate.
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