5 LibFormat is a library that implements automatic source code formatting based
6 on Clang. This documents describes the LibFormat interface and design as well
7 as some basic style discussions.
9 If you just want to use `clang-format` as a tool or integrated into an editor,
10 checkout :doc:`ClangFormat`.
15 FIXME: Write up design.
21 The core routine of LibFormat is ``reformat()``:
25 tooling::Replacements reformat(const FormatStyle &Style, Lexer &Lex,
26 SourceManager &SourceMgr,
27 std::vector<CharSourceRange> Ranges);
29 This reads a token stream out of the lexer ``Lex`` and reformats all the code
30 ranges in ``Ranges``. The ``FormatStyle`` controls basic decisions made during
31 formatting. A list of options can be found under :ref:`style-options`.
33 The style options are described in :doc:`ClangFormatStyleOptions`.
41 The style options describe specific formatting options that can be used in
42 order to make `ClangFormat` comply with different style guides. Currently,
43 several style guides are hard-coded:
47 /// Returns a format style complying with the LLVM coding standards:
48 /// https://llvm.org/docs/CodingStandards.html.
49 FormatStyle getLLVMStyle();
51 /// Returns a format style complying with Google's C++ style guide:
52 /// http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml.
53 FormatStyle getGoogleStyle();
55 /// Returns a format style complying with Chromium's style guide:
56 /// https://chromium.googlesource.com/chromium/src/+/refs/heads/main/styleguide/styleguide.md
57 FormatStyle getChromiumStyle();
59 /// Returns a format style complying with the GNU coding standards:
60 /// https://www.gnu.org/prep/standards/standards.html
61 FormatStyle getGNUStyle();
63 /// Returns a format style complying with Mozilla's style guide
64 /// https://firefox-source-docs.mozilla.org/code-quality/coding-style/index.html
65 FormatStyle getMozillaStyle();
67 /// Returns a format style complying with Webkit's style guide:
68 /// https://webkit.org/code-style-guidelines/
69 FormatStyle getWebkitStyle();
71 /// Returns a format style complying with Microsoft's style guide:
72 /// https://docs.microsoft.com/en-us/visualstudio/ide/editorconfig-code-style-settings-reference
73 FormatStyle getMicrosoftStyle();
75 These options are also exposed in the :doc:`standalone tools <ClangFormat>`
76 through the `-style` option.
78 In the future, we plan on making this configurable.