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Igor Kushnir authored
Whenever the user opens Configure KDevelop... or Configure Project dialog, KDevelop prints to stderr one of the following two warnings for each formatting style (except for Python styles): kdevplatform.shell: formatter plugin "kdevastyle" supports unknown mimetype entry "text/x-objchdr" kdevplatform.shell: formatter plugin "kdevcustomscript" supports unknown mimetype entry "text/x-objchdr" This change eliminates such unknown-mimetype-entry warnings for predefined formatting styles. The MIME type is not automatically removed from user-defined styles. So in order to completely eliminate the text/x-objchdr warnings, the strings ",text/x-objchdr|Objective-C" have to be replaced with "" (empty strings) in ~/.config/kdeveloprc. The removed text/x-objchdr MIME type is very rarely used. There is no mention of it in Qt Creator's code. KSyntaxHighlighting refers to text/x-c-hdr in data/syntax/objectivec[pp].xml. This KCoreAddons commit https://commits.kde.org/kcoreaddons/e5f09f84a945af4edf4f346aed409acf29905414 removed it as useless. Indeed, it shares the extension *.h with C. Not even C++ competes for this file extension in the MIME type database, even though a large proportion of *.h files are C++ headers. So the MIME type DB maintainers probably won't agree to risk issues and slow down C header detection to accommodate this rare case. Theoretically, Objective-C headers could be detected with #import magic, but that wouldn't be reliable, because Objective-C headers can start with a comment or with #include, which share C's syntax. This MIME type is currently useless in KDevelop anyway, because it is only included in MIME type lists and never appears in conditions. Apparently even macOS does not have a notion of Objective-C header file type. The Compiled Programming Language Sources section of Apple's System Declared UTI documentation contains cHeader, cSource, cPlusPlusHeader, cPlusPlusSource, objectiveCPlusPlusSource and objectiveCSource, but no objectiveC[PlusPlus]Header: https://developer.apple.com/documentation/uniformtypeidentifiers/system_declared_uniform_type_identifiers R.J.V. Bertin added this MIME type to KDevelop code in a0992d31. He agreed to remove it during a recent discussion in comments under https://phabricator.kde.org/D15532
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