GBApplicationSettingsProvider.h

//
//  GBApplicationSettingsProvider.h
//  appledoc
//
//  Created by Tomaz Kragelj on 3.10.10.
//  Copyright (C) 2010, Gentle Bytes. All rights reserved.
//

#import "GBCommentComponentsProvider.h"
#import "GBApplicationStringsProvider.h"

@class GBModelBase;

extern id kGBCustomDocumentIndexDescKey;

typedef enum
{
    GBHTMLAnchorFormatAppleDoc = 0,
    GBHTMLAnchorFormatApple
} GBHTMLAnchorFormat;

GBHTMLAnchorFormat GBHTMLAnchorFormatFromNSString(NSString *formatString);
NSString *NSStringFromGBHTMLAnchorFormat(GBHTMLAnchorFormat format);

typedef enum
{
    GBPublishedFeedFormatAtom = 1,
    GBPublishedFeedFormatXML = 2
} GBPublishedFeedFormats;

GBPublishedFeedFormats GBPublishedFeedFormatsFromNSString(NSString *formatString);
NSString *NSStringFromGBPublishedFeedFormats(GBPublishedFeedFormats format);

#pragma mark -

/** Main application settings provider.
 
 This object implements `GBApplicationStringsProviding` interface and is used by `GBAppledocApplication` to prepare application-wide settings including factory defaults, global and session values. The main purpose of the class is to simplify `GBAppledocApplication` class by decoupling it from the actual settings providing implementation.
 
 To create a new setting use the following check list to update `GBApplicationSettingsProvider`:
 
 1. Create the property here (don't forget about `@synthetize`!).
 2. Set default value in initializer.
 
 If the setting should be mapped to command line switch also do the following in `GBAppledocApplication`:
 
 1. Create a new global string as `static NSString` containing the command line switch name.
 2. Register the switch to `DDCli` (add negated switch if it's a boolean).
 3. Add unit test in `GBApplicationTesting.m` that validates the switch is properly mapped to setting property (note that boolean switches require testing normal and negated variants!).
 4. Add KVC setter and map to corresponding property to make the test pass (again booleans require two setters).
 5. If the switch value uses template placeholders, add unit test in `GBApplicationSettingsProviderTesting.m` that validates the switch is handled.
 6. If previous point was used, add the code to `replaceAllOccurencesOfPlaceholderStringsInSettingsValues` to make the test pass.
 7. Add the switch value printout to `printSettingsAndArguments:`.
 8. Add the switch help printout to `printHelp`.
 */
@interface GBApplicationSettingsProvider : NSObject

///---------------------------------------------------------------------------------------
/// @name Initialization & disposal
///---------------------------------------------------------------------------------------

/** Returns autoreleased instance of the class.
 */
+ (id)provider;

///---------------------------------------------------------------------------------------
/// @name Project values handling
///---------------------------------------------------------------------------------------

/** Human readable name of the project. */
@property (copy) NSString *projectName;

/** Human readable name of the project company. */
@property (copy) NSString *projectCompany;

/** Human readable version of the project. */
@property (copy) NSString *projectVersion;

/** Company unique identifier, ussualy in the form of reverse domain like _com.company_. */
@property (copy) NSString *companyIdentifier;

/** Project identifier which is derived by normalizing `projectName`. */
@property (readonly) NSString *projectIdentifier;

/** Version identifier which is derived by normalizing `projectVersion`. */
@property (readonly) NSString *versionIdentifier;

///---------------------------------------------------------------------------------------
/// @name Documentation set handling
///---------------------------------------------------------------------------------------

/** Documentation set bundle identifier. */
@property (copy) NSString *docsetBundleIdentifier;

/** Documentation set bundle name. */
@property (copy) NSString *docsetBundleName;

/** Documentation set certificate issuer. */
@property (copy) NSString *docsetCertificateIssuer;

/** Documentation set certificate signer. */
@property (copy) NSString *docsetCertificateSigner;

/** Documentation set description. */
@property (copy) NSString *docsetDescription;

/** Documentation set fallback URL. */
@property (copy) NSString *docsetFallbackURL;

/** Documentation set feed name. */
@property (copy) NSString *docsetFeedName;

/** Documentation set feed URL. */
@property (copy) NSString *docsetFeedURL;

/** Specifies the format docsets should be published in.
 
 If `atom`, docset will be published using the standard Xcode atom feed format
 
 If `xml`, docset will be published using the xml format specified by the xml-template.xml found in Templates/publish
 
 Multiple values can be included in this parameter separated by a comma
 
 @see publishDocSet
 */
@property (assign) GBPublishedFeedFormats docsetFeedFormats;

/** Documentation set package URL. */
@property (copy) NSString *docsetPackageURL;

/** Documentation set minimum Xcode version. */
@property (copy) NSString *docsetMinimumXcodeVersion;

/** Documentation set platform family for using within Dash. */
@property (copy) NSString *dashDocsetPlatformFamily;

/** Documentation set platform family. */
@property (copy) NSString *docsetPlatformFamily;

/** Documentation set publisher identifier. */
@property (copy) NSString *docsetPublisherIdentifier;

/** Documentation set publisher name. */
@property (copy) NSString *docsetPublisherName;

/** Documentation set human readble copyright message. */
@property (copy) NSString *docsetCopyrightMessage;

/** The name of the documentation set installed bundle. The folder is generated in `docsetInstallPath`. */
@property (copy) NSString *docsetBundleFilename;

/** The name of the documentation set atom file when generating publishing files. The file is generated in `outputPath`. */
@property (copy) NSString *docsetAtomFilename;

/** The name of the documentation set xml file when generating publishing files. The file is generated in `outputPath`. */
@property (copy) NSString *docsetXMLFilename;

/** The name of the documentation set compressed package file when generating publishing files. The file is generated in `outputPath`. */
@property (copy) NSString *docsetPackageFilename;

///---------------------------------------------------------------------------------------
/// @name Paths handling
///---------------------------------------------------------------------------------------

/** The base path to template files used for generating various output files. */
@property (copy) NSString *templatesPath;

/** The base path of the generated files. */
@property (copy) NSString *outputPath;

/** The path to which documentation set is to be installed. */
@property (copy) NSString *docsetInstallPath;

/** The path to `xcrun` tool, including tool filename. */
@property (copy) NSString *xcrunPath;

/** The list of all include paths containing static documentation.
 
 The array contains full paths to either directories or files. In the first case, directories are recursively parsed for all template files (i.e. files with names ending with `-template` and arbitrary extension). Each file is processed the same as any other comment! All non-template files are simply copied over to destination without processing, preserving original directory structure. If the path represents a file, the same logic is applied: if it's a template file it's processed, otherwise it's simply copied over to destination unmodified.
 
 @warning *Note:* All include paths are copied over to destination defined with `outputPath`, inside `docs` directory. If a path represents a directory, it's copied into a subdirectory of `docs` using the last path component name as the subdirectory name. For example: contents of `some/path/to/dir` would be copied to `docs/dir` within `outputPath` and `another/path` would be copied to `docs/path`. In case the path represents a file, it's simply copied inside `docs` directory at `outputPath`.
 
 @warning *Important:* Make sure no duplicate directories or files are added to the list - appledoc will fail in such case! Also make sure to not add subpaths of an already added path - this will also fail while copying files!
 
 @see indexDescriptionPath
 */
@property (retain) NSMutableSet *includePaths;

/** The path to the source file used for injection into autogenerated main index html.
 
 If this is valid value, pointing to an existing file, it's used to inject the contents of the file into autogenerated main index html. The source file is preprocessed using the same rules as all other static documents.

 @see includePaths
 */
@property (copy) NSString *indexDescriptionPath;

/** The list of all full or partial paths to be ignored. 
 
 It's recommended to check if a path string ends with any of the given paths before processing it. This should catch directory and file names properly as directories are processed first.
 */
@property (retain) NSMutableSet *ignoredPaths;

/** The list of all full or partial paths to exclude from output generation.

 Source code in these paths is still parsed and possibly used for copying to classes not in the excludeOutputPaths.
 */
@property (retain) NSMutableSet *excludeOutputPaths;

///---------------------------------------------------------------------------------------
/// @name Behavior handling
///---------------------------------------------------------------------------------------

/** Indicates whether HTML files should be generated or not.
 
 If `YES`, HTML files are generated in `outputPath` from parsed and processed data. If `NO`, input files are parsed and processed, but nothing is generated.
 
 @see createDocSet
 */
@property (assign) BOOL createHTML;

/** Specifies whether documentation set should be created from the HTML files.
 
 If `YES`, HTML files from html subdirectory in `outputPath` are moved to proper subdirectory within docset output files, then helper files are generated from parsed data. Documentation set files are also indexed. If `NO`, HTML files are left in the output path.
 
 @see createHTML
 @see installDocSet
 @see publishDocSet
 */
@property (assign) BOOL createDocSet;

/** Specifies whether the documentation set should be installed or not.
 
 If `YES`, temporary files used for indexing and removed, then documentation set bundle is created from the files from docset output path and is moved to `docsetInstallPath`. If `NO`, all documentation set files are left in output path.
 
 @see createDocSet
 @see publishDocSet
 */
@property (assign) BOOL installDocSet;

/** Specifies whether the documentation set should be prepared for publishing or not.
 
 If `YES`, installed documentation set is packaged for publishing - an atom feed is created and documentation set is archived. If the atom feed file is alreay found, it is updated with new information. Both, the feed and archived docset files are located within `outputPath`. If `NO`, documentation set is not prepared for publishing.
 
 @see createDocSet
 @see installDocSet
 */
@property (assign) BOOL publishDocSet;

/** Specifies the format docsets should use for their html anchors.
 
 If `appledoc`, docset HTML files will use the format `//api/name/symbol_name` for anchor names.
 
 If `apple`, docset HTML files will use the format `//apple_ref/occ/symbol_type/parent_symbol/symbol_name/`.
 
 @see createDocSet
 */
@property (assign) GBHTMLAnchorFormat htmlAnchorFormat;

/** Specifies whether intermediate files should be kept in `outputPath` or not.
 
 If `YES`, all intermediate files (i.e. HTML files and documentation set files) are kept in output path. If `NO`, only final results are kept. This setting not only affects how the files are being handled, it also affects performance. If intermediate files are not kept, appledoc moves files between various generation phases, otherwise it copies them. So it's prefferable to leave this option to `NO`. This option only affects output files, input source files are always left intact!
 
 @see cleanupOutputPathBeforeRunning
 */
@property (assign) BOOL keepIntermediateFiles;

/** Specifies whether contents of output path should be deleted befor running the tool.
 
 This is useful to have output path only contain files generated by latest run instead of keeping previous files. Although appledoc removes existing files when needed, it leaves any file or directory that's not touched by this run. So if we created docset in previous run, and only html in current one, the output would contain both subdirs - the fresh HTML files and documentation set from the previous run. Using this option cleans up output path before running so we can start fresh and prevent confusion.
 
 @see keepIntermediateFiles
 */
@property (assign) BOOL cleanupOutputPathBeforeRunning;

/** Indicates whether the first paragraph needs to be repeated within method and property description or not.
 
 If `YES`, first paragraph is repeated in members description, otherwise not.
 */
@property (assign) BOOL repeatFirstParagraphForMemberDescription;

/** Indicates whether we should preprocess header doc style comments or not.
 
 If `YES`, appledoc will try to do best to handle header doc comments while preprocessing.
 */
@property (assign) BOOL preprocessHeaderDoc;

/** Indicates whether we should prepend the name of an information block before the comment
 
 If `YES`, appledoc will add "Warning: " to the text of a warning informationg block, "Note: " to note blocks, and "Bug: " to bug blocks.
 */
@property (assign) BOOL printInformationBlockTitles;

/** Indicates whether we should treat single stars as bold markers or not.
 
 If `YES`, single star markers (`*text*`) should be treated as bold markers (`**text**`), otherwise not. This is mainly used for backwards compatibility, but should be disabled as it can cause unexpected issues, such as converting unordered lists into bold etc.
 */
@property (assign) BOOL useSingleStarForBold;

/** Indicates whether undocumented classes, categories or protocols should be kept or ignored when generating output.
 
 If `YES` undocumented objects are kept and are used for output generation. If `NO`, these objects are ignored, but only if all their members are also not documented - as soon as a single member is documented, the object is included in output together with all of it's documented members.
 
 @warning *Note:* Several properties define how undocumented objects are handled: `keepUndocumentedObjects`, `keepUndocumentedMembers` and `findUndocumentedMembersDocumentation`. To better understand how these work together, this is the workflow used when processing parsed objects, prior than passing them to output generators:
 
 1. If `findUndocumentedMembersDocumentation` is `YES`, all undocumented methods and properties documentation is searched for in known super class hierarchy. If documentation is found in any of the super classes, it is copied to inherited member as well. If `findUndocumentedMembersDocumentation` is `NO`, members are left undocumented and are handled that way in next steps.
 2. If `keepUndocumentedMembers` is `NO`, all parsed objects' members are iterated over. Any undocumented method or property is removed from class (of course any documentation copied over from super classes in previous step is considered valid too). If `keepUndocumentedMembers` is `NO`, all members are left and if `warnOnUndocumentedMembers` is `YES`, warnings are logged for all undocumented members.
 3. If `keepUndocumentedObjects` is `NO`, all undocumented classes, categories and protocols that have no documented method or property are also removed. If `keepUndocumentedObjects` is `NO`, all objects are left in the store and are used for output generation and if `warnOnUndocumentedObject` is `YES`, warnings are logged for all undocumented objects.
 
 @see keepUndocumentedMembers
 @see findUndocumentedMembersDocumentation;
 @see warnOnUndocumentedObject
 */
@property (assign) BOOL keepUndocumentedObjects;

/** Indicates whether undocumented methods or properties should be processed or not.
 
 If `YES`, undocumented members are still used for output generation. If `NO`, these members are ignored, as if they are not part of the object. Note that this only affects documented objects: if an object is not documented and none of it's members is documented, the object is not processed for output, even if this value is `YES`!
 
 @warning *Note:* This property works together with `keepUndocumentedObjects` and `findUndocumentedMembersDocumentation`. To understand how they are used, read documentation for `keepUndocumentedObjects`.
 
 @see keepUndocumentedObjects
 @see findUndocumentedMembersDocumentation
 @see warnOnUndocumentedMember
 */
@property (assign) BOOL keepUndocumentedMembers;

/** Specifies whether undocumented inherited methods or properties should be searched for in known places.
 
 If `YES`, any undocumented overriden method or property is searched for in known super classes and adopted protocols and if documentation is found there, it is copied over. This works great for objects which would otherwise only show class documentation and no member. It's also how Apple documentation uses. Defaults to `YES`.
 
 @warning *Note:* This property works together with `keepUndocumentedObjects` and `keepUndocumentedMembers`. To understand how they are used, read documentation for `keepUndocumentedObjects`.
 
 @see keepUndocumentedObjects
 @see keepUndocumentedMembers
 */
@property (assign) BOOL findUndocumentedMembersDocumentation;

/** Indicates whether categories should be merges to classes they extend or not.
 
 If `YES`, all methods from categories and extensions are merged to their classes. If `NO`, categories are left as independent objects in generated output. This is the main categories merging on/off switch, it merely enables or disables merging, other category merging settings define how exactly the methods from categories and extensions are merged into their classes.
 
 Default value is `YES` and should be left so as this seems to be the way Apple has it's documentation generated.
 
 @warning *Important:* Only categories for known project classes are merged. Categories to other framework classes, such as Foundation, AppKit or UIKit are not merged. In other words: only if the class source code is available on any of the given input paths, and is properly documented, it gets it's categories and extension methods merged! Also note that this option affects your documentation links - if any link is pointing to category that's going to be merged, it will be considered invalid link, so it's best to decide whther to merge categories of nor in advance and then consistently use properly formatted links.
 
 @see keepMergedCategoriesSections
 @see prefixMergedCategoriesSectionsWithCategoryName
 */
@property (assign) BOOL mergeCategoriesToClasses;

/** Indicates wheter category comment should be merged to the end of the class comment or not.
 
 This is only applicable if `mergeCategoriesToClasses` is `YES`.
 
 @see mergeCategoriesToClasses
 */
@property (assign) BOOL mergeCategoryCommentToClass;

/** Indicates whether category or extension sections should be preserved when merging into extended class.
 
 If `YES`, all the sections from category or extension documentation are preserved. In such case, `prefixMergedCategoriesSectionsWithCategoryName` may optionally be used to prefix section name with category name or not. If `NO`, category or extension sections are ignored and a single section with category name is created in the class.
 
 Default value is `NO`. If you use many sections within the categories, you should probably leave this option unchanged as preserving all category sections might yield fragmented class documentation. Experiment a bit to see what works best for you.
 
 @warning *Note:* This option is ignored unless `mergeCategoriesToClasses` is used.
 
 @see prefixMergedCategoriesSectionsWithCategoryName
 @see mergeCategoriesToClasses
 */
@property (assign) BOOL keepMergedCategoriesSections;

/** Indicates whether merged section names from categories should be prefixed with category name.
 
 If `YES`, all merged section names from categories are prefixed with category name to make them more easily identifiable. If `NO`, section names are not changed. The first option is useful in case end users of your code are aware of different categories (if you're writing a framework for example). On the other hand, if you're using categories mostly as a way to split class definition to multiple files, you might want to keep this option off.
 
 @warning *Note:* This option is ignored unless `mergeCategoriesToClasses` and `keepMergedCategoriesSections` is used. The option is also ignored for extensions; only section names are used for extensions!
 
 @see keepMergedCategoriesSections
 @see mergeCategoriesToClasses
 */
@property (assign) BOOL prefixMergedCategoriesSectionsWithCategoryName;

/** Indicates whteher local methods and properties cross references texts should be prefixed when used in related items list.
 
 If `YES`, instance methods are prefixed with `-`, class methods with `+` and properties with `@property` when used as cross reference in related items list (i.e. see also section for methods). If `NO`, no prefix is used.
 */
@property (assign) BOOL prefixLocalMembersInRelatedItemsList;

/** Specifies whether we should treat docsetutil indexing errors as fatals or not.
 
 Turning this to `YES` will cause docsetutil indexing error failing build, otherwise it will continue with remaining files. The main reason for implementing this is to allow handling uncompatible descriptions as graceful as possible.
 */
@property (assign) BOOL treatDocSetIndexingErrorsAsFatals;

/** Species the threshold below which exit codes are truncated to zero.
 
 This affects the reported exit code when ending a run session. It allows users preventing reporting certain types of exit codes, based on the given threshold. If the reported exit code is lower than the given threshold, zero is returned instead. If the reported exit code is equal or greater than the threshold, it is returned as the result of the tool.
 
 This is useful to prevent higher level tools invoking appledoc (Xcode for example) treating reported warnings as invalid run for example. By default, this value is zero, so no exit code is suppressed.
 
 @warning *Note:* Generally appledoc uses higher exit codes for more severe issues, so the greater the threshold, the more "permissive" the exit code will be, regardless of what happens inside the tool. However, crashes are always reported with proper exit codes, regardless of threshold value! Also note that the threshold value relies on the implementation of the exit codes #define values!
 */
@property (assign) int exitCodeThreshold;

///---------------------------------------------------------------------------------------
/// @name Warnings handling
///---------------------------------------------------------------------------------------

/** Indicates whether appledoc will warn if `--output` argument is not given.
 
 Although appledoc still generates output in current directory, it's better to warn the user as in most cases this is not what she wants (for example if appledoc is invoked from Xcode build script, current working directory might point to some unpredicted location). appledoc also writes the exact path that will be used for generating output.
 
 Note that in case documentation set is installed to Xcode, setting output path is irrelevant as all files from output are moved to locations Xcode uses for finding documentation sets.
 */
@property (assign) BOOL warnOnMissingOutputPathArgument;

/** Indicates whether appledoc will warn if `--company-id` argument is not given.
 
 Although appledoc deducts this information from other values, it's better to warn the user as deducted information doesn't necessarily produce correct results.
 
 Note that the warning is only issued if documentation set creation is requested.
 */
@property (assign) BOOL warnOnMissingCompanyIdentifier;

/** Indicates whether appledoc will warn if it encounters an undocumented class, category or protocol.
 
 @see warnOnUndocumentedMember
 */
@property (assign) BOOL warnOnUndocumentedObject;

/** Indicates whether appledoc will warn if it encounters an undocumented method or property.
 
 @see warnOnUndocumentedObject
 */
@property (assign) BOOL warnOnUndocumentedMember;

/** Indicates whether appledoc will warn if it encounters an empty description (@bug, @warning, example section etc.).
 */
@property (assign) BOOL warnOnEmptyDescription;

/** Indicates whether appledoc will warn if it encounters unknown directive or styling element.
 */
@property (assign) BOOL warnOnUnknownDirective;

/** Indicates whether invalid cross reference should result in warning or not. */
@property (assign) BOOL warnOnInvalidCrossReference;

/** Indicates whether missing method argument descriptions in comments should result in warnings or not. */
@property (assign) BOOL warnOnMissingMethodArgument;

///---------------------------------------------------------------------------------------
/// @name Application-wide HTML helpers
///---------------------------------------------------------------------------------------

/** Specifies whether cross references should be embedded to special strings when processing Markdown.
 
 This should be left to default value, however it's useful to prevent embedding for unit testing.
 
 @see stringByEmbeddingCrossReference:
 @see embedAppledocBoldMarkersWhenProcessingMarkdown
 */
@property (assign) BOOL embedCrossReferencesWhenProcessingMarkdown;

/** Specifies whether cross references should be embedded to special strings when processing Markdown.
 
 This should be left to default value, however it's useful to prevent embedding for unit testing.
 
 @see stringByEmbeddingCrossReference:
 @see embedCrossReferencesWhenProcessingMarkdown
 */
@property (assign) BOOL embedAppledocBoldMarkersWhenProcessingMarkdown;

/** Returns a new string with the given Markdown reference embedded in special cross reference markers used for post processing.
 
 This should be used for all generated cross references, so that we can later detect them when converting HTML with `stringByConvertingMarkdownToHTML:`.
 
 @warning *Important:* Behavior of this method depends on `embedCrossReferencesWhenProcessingMarkdown` value. If it's `YES`, strings are embedded, otherwise the given value is returned without enmbedding.
 
 @param value The string to embedd.
 @return Returns embedded string.
 @see stringByConvertingMarkdownToHTML:
 @see embedCrossReferencesWhenProcessingMarkdown
 */
- (NSString *)stringByEmbeddingCrossReference:(NSString *)value;

/** Returns a new string with the given value embedded in special bold markers used for post processing.
 
 This should be used for all appledoc style bold markers (single star), so that we can later detect them when converting HTML with `stringByConvertingMarkdownToHTML:`.
 
 @warning *Important:* Behavior of this method depends on `embedAppledocBoldMarkersWhenProcessingMarkdown` value. If it's `YES`, strings are embedded, otherwise value is returned without embedding.
 
 @param value The string to embedd.
 @return Returns embedded string.
 @see stringByConvertingMarkdownToHTML:
 @see embedAppledocBoldMarkersWhenProcessingMarkdown
 */
- (NSString *)stringByEmbeddingAppledocBoldMarkers:(NSString *)value;

/** Returns a new string containing HTML representation of the given Markdown string.
 
 This is the main method for converting Markdown to HTML. It works in two phases: first the Markdown engine is asked to convert the given string to HTML, then the string is cleaned up so that it contains proper HTML code. Cleaning up phase consists of:
 
 - Cleaning any appledoc generated cross reference inside `<pre>` blocks. Markdown doesn't process links here, so in case appledoc detects known object and converts it to Markdown style link, the Markdown syntaxt is left untouched. This phase makes sure all such occurences are cleaned up to original text. This is only invoked if `embedCrossReferencesWhenProcessingMarkdown` value is `YES`!
 
 @param markdown Markdown source string to convert.
 @return Returns converted string.
 @see stringByEmbeddingCrossReference:
 @see stringByConvertingMarkdownToText:
 @see stringByEscapingHTML:
 */
- (NSString *)stringByConvertingMarkdownToHTML:(NSString *)markdown;

/** Returns a new string containing text representation of the given Markdown string.
 
 The main responsibility of this method is to strip Markdown links to names only to give text more readability when used in Xcode quick help. Although the name suggests this can handle Markdown strings, it's intended to be given appledoc comment string, prior to passing it to `GBCommentsProcessor`.
 
 @param markdown Markdown source string to convert.
 @return Returns converted string.
 @see stringByConvertingMarkdownToHTML:
 @see stringByEscapingHTML:
 */
- (NSString *)stringByConvertingMarkdownToText:(NSString *)markdown;

/** Returns a new string by escaping the given HTML.
 
 @param string HTML string to escape.
 @return Returns escaped HTML string.
 @see stringByConvertingMarkdownToHTML:
 @see stringByConvertingMarkdownToText:
 */
- (NSString *)stringByEscapingHTML:(NSString *)string;

/** Returns HTML reference name for the given object.
 
 This should only be used for creating anchors that need to be referenced from other parts of the same HTML file. The method works for static documents, top-level objects as well as their members.
 
 @param object The object for which to return reference name.
 @return Returns the reference name of the object.
 @exception NSException Thrown if the given object is `nil`.
 @see htmlReferenceForObject:fromSource:
 @see htmlReferenceForObjectFromIndex:
 */
- (NSString *)htmlReferenceNameForObject:(GBModelBase *)object;

/** Returns relative HTML reference to the given object from the context of the given source object.
 
 This is useful for generating hrefs from one object HTML file to another. This is the swiss army knife king of a method for all hrefs generation. It works for any kind of links:
 
 - Index to top-level object (if source is `nil`).
 - Index to a member of a top-level object (if source is `nil`).
 - Top-level object to same top-level object.
 - Top-level object to a different top-level object.
 - Top-level object to one of it's members.
 - Member object to it's top-level object.
 - Member object to another top-level object.
 - Member object to another member of the same top-level object.
 - Member object to a member of another top-level object.
 
 @param object The object for which to generate the reference to.
 @param source The source object from which to generate the reference from or `nil` for index to object reference.
 @return Returns the reference string.
 @exception NSException Thrown if object is `nil`.
 @see htmlReferenceForObjectFromIndex:
 @see htmlReferenceNameForObject:
 */
- (NSString *)htmlReferenceForObject:(GBModelBase *)object fromSource:(GBModelBase *)source;

/** Returns relative HTML reference to the given object from the context of index file.
 
 This is simply a helper method for `htmlReferenceForObject:fromSource:`, passing the given object as object parameter and `nil` as source.
 
 @param object The object for which to generate the reference to.
 @return Returns the reference string.
 @exception NSException Thrown if object is `nil`.
 @see htmlRelativePathToIndexFromObject:
 @see htmlReferenceForObject:fromSource:
 @see htmlReferenceNameForObject:
 */
- (NSString *)htmlReferenceForObjectFromIndex:(GBModelBase *)object;

/** Returns relative HTML path from the given object to the index file location.
 
 This is kind of reverse to `htmlReferenceForObjectFromIndex:`, except that it only returns the relative path, without index.html.
 
 @param object The object from which to generate the path.
 @return Returns relative path.
 @exception NSException Thrown if object is `nil`.
 @see htmlReferenceForObjectFromIndex:
 @see htmlReferenceForObject:fromSource:
 @see htmlReferenceNameForObject:
 */
- (NSString *)htmlRelativePathToIndexFromObject:(id)object;

/** The subpath within `outputPath` where static documents are stored.
 */
@property (readonly) NSString *htmlStaticDocumentsSubpath;

/** The file extension for html files.
 */
@property (readonly) NSString *htmlExtension;

///---------------------------------------------------------------------------------------
/// @name Application-wide template files helpers
///---------------------------------------------------------------------------------------

/** Determines if the given path represents a template file or not.
 
 The method simply checks the if the name of the last path component ends with `-template` string.
 
 @param path The path to check.
 @return Returns `YES` if the given path represents a template file, `NO` otherwise.
 @see outputFilenameForTemplatePath:
 */
- (BOOL)isPathRepresentingTemplateFile:(NSString *)path;

/** Returns the actual filename of the output file from the given template path.
 
 The method simply removes `-template` string from the file name and returns the resulting string. The result is the filename without path but with the same extension as the original path. If the given path doesn't represent a template file, the result is equivalent to sending `lastPathComponent` to the input path.
 
 @param path The path to convert.
 @return Returns filename that can be used for output.
 @see isPathRepresentingTemplateFile:
 @see templateFilenameForOutputPath:
 */
- (NSString *)outputFilenameForTemplatePath:(NSString *)path;

/** Returns the template name for the given filename.
 
 This is reverse method for `outputFilenameForTemplatePath`. It adds `-template` string to the end of the given path filename, before the optional extension.
 
 @param path The path to convert.
 @return Returns template filename.
 @see isPathRepresentingTemplateFile:
 @see outputFilenameForTemplatePath:
 */
- (NSString *)templateFilenameForOutputPath:(NSString *)path;

///---------------------------------------------------------------------------------------
/// @name Helper methods
///---------------------------------------------------------------------------------------

/** Replaces all occurences of placeholder strings in all related values of the receiver.
 
 This message should be sent once all the values have been set. It is a convenience method that prepares all values that can use placeholder strings. From this point on, the rest of the application can simply use properties to get final values instead of sending `stringByReplacingOccurencesOfPlaceholdersInString:` all the time.
 
 Note that `stringByReplacingOccurencesOfPlaceholdersInString:` is still available for cases where placeholder strings may be used elsewhere (template files for example).
 
 @see stringByReplacingOccurencesOfPlaceholdersInString:
 */
- (void)replaceAllOccurencesOfPlaceholderStringsInSettingsValues;

/** Replaces all placeholders occurences in the given string.
 
 This method provides application-wide string placeholders replacement functionality. It replaces all known placeholders with actual values from the receiver. Placeholders are identified by a dollar mark, followed by placeholder name. The following placeholders are supported (note that case is important!):
 
 - `%PROJECT`: Replaced by `projectName` value.
 - `%PROJECTID`: Replaced by `projectIdentifier` value.
 - `%COMPANY`: Replaced by `projectCompany` value.
 - `%COMPANYID`: Replaced by `companyIdentifier` value.
 - `%VERSION`: Replaced by `projectVersion` value.
 - `%VERSIONID`: Replaced by `versionIdentifier` value.
 - `%DOCSETBUNDLEFILENAME`: Replaced by `docsetBundleFilename` value.
 - `%DOCSETATOMFILENAME`: Replaced by `docsetAtomFilename` value.
 - `%DOCSETXMLFILENAME`: Replaced by `docsetXMLFilename` value.
 - `%DOCSETPACKAGEFILENAME`: Replaced by `docsetPackageFilename` value.
 - `%YEAR`: Replaced by current year as four digit string.
 - `%UPDATEDATE`: Replaced by current date in the form of year, month and day with format `YYYY-MM-DD`. For example `2010-11-30`.
 
 @param string The string to replace placeholder occurences in.
 @return Returns new string with all placeholder occurences replaced.
 @see replaceAllOccurencesOfPlaceholderStringsInSettingsValues
 */
- (NSString *)stringByReplacingOccurencesOfPlaceholdersInString:(NSString *)string;

///---------------------------------------------------------------------------------------
/// @name Helper classes
///---------------------------------------------------------------------------------------

/** Returns the `GBCommentComponentsProvider` object that identifies comment components. */
@property (retain) GBCommentComponentsProvider *commentComponents;

/** Returns the `GBApplicationStringsProvider` object that specifies all string templates used for output generation. */
@property (retain) GBApplicationStringsProvider *stringTemplates;

@end

#pragma -

extern NSString *kGBTemplatePlaceholderCompanyID;
extern NSString *kGBTemplatePlaceholderProjectID;
extern NSString *kGBTemplatePlaceholderVersionID;
extern NSString *kGBTemplatePlaceholderProject;
extern NSString *kGBTemplatePlaceholderCompany;
extern NSString *kGBTemplatePlaceholderVersion;
extern NSString *kGBTemplatePlaceholderDocSetBundleFilename;
extern NSString *kGBTemplatePlaceholderDocSetAtomFilename;
extern NSString *kGBTemplatePlaceholderDocSetXMLFilename;
extern NSString *kGBTemplatePlaceholderDocSetPackageFilename;
extern NSString *kGBTemplatePlaceholderYear;
extern NSString *kGBTemplatePlaceholderUpdateDate;