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* Remove extra whitespace instead of breaking the line in comments when possible.Alexander Kornienko2013-11-121-0/+15
| | | | | | | | | | | | | | Summary: Solves the problem described in http://llvm.org/PR17756 Reviewers: klimek Reviewed By: klimek CC: cfe-commits, klimek Differential Revision: http://llvm-reviews.chandlerc.com/D2131 llvm-svn: 194493
* Implemented tab usage only for indentation (http://llvm.org/PR17363)Alexander Kornienko2013-09-271-18/+21
| | | | | | | | | | | | | | | | | | | Summary: Changed UseTab to be a enum with three options: Never, Always, ForIndentation (true/false are still supported when reading .clang-format). IndentLevel should currently be propagated correctly for all tokens, except for block comments. Please take a look at the general idea before I start dealing with block comments. Reviewers: klimek, djasper Reviewed By: klimek CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D1770 llvm-svn: 191527
* When in pre-c++11 mode, treat _T("xxx") as a single string literal, repeat ↵Alexander Kornienko2013-09-161-0/+1
| | | | | | | | | | | | | | the _T() part around each fragment. This addresses http://llvm.org/PR17122 Reviewers: djasper Reviewed By: djasper CC: cfe-commits, klimek, rsmith Differential Revision: http://llvm-reviews.chandlerc.com/D1640 llvm-svn: 190804
* Handle zero-width and double-width characters in string literals and comments.Alexander Kornienko2013-09-051-11/+15
| | | | | | | | | | | | | | | | | | Summary: Count column width instead of the number of code points. This also includes correct handling of tabs inside string literals and comments (with an exception of multiline string literals/comments, where tabs are present before the first escaped newline). Reviewers: djasper, klimek Reviewed By: klimek CC: cfe-commits, klimek Differential Revision: http://llvm-reviews.chandlerc.com/D1601 llvm-svn: 190052
* Reformat clang-format's source files after r185822 and others.Daniel Jasper2013-07-081-2/+2
| | | | llvm-svn: 185823
* Fix for corner cases in code handling leading "* " decorations in block commentsAlexander Kornienko2013-07-081-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Fixes problems that lead to incorrect formatting of these and similar snippets: /* ** */ /* **/ /* * */ /* *test */ Clang-format used to think that all the cases above use "* " decoration, and failed to calculate insertion position properly. It also used to remove leading "* " in the last line. Reviewers: klimek Reviewed By: klimek CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D1113 llvm-svn: 185818
* Don't remove backslashes from block comments.Alexander Kornienko2013-06-141-14/+12
| | | | | | | | | | | | | | | | | | | | | | | Summary: Don't remove backslashes from block comments. Previously this /* \ \ \ \ \ \ */ would be turned to this: /* */ which spoils some kinds of ASCII-art, people use in their comments. The behavior was related to handling escaped newlines in block comments inside preprocessor directives. This patch makes handling it in a more civilized way. Reviewers: klimek Reviewed By: klimek CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D979 llvm-svn: 183978
* Insert a space at the start of a line comment in case it starts with an ↵Alexander Kornienko2013-06-111-2/+12
| | | | | | | | | | | | | | | | | | | | alphanumeric character. Summary: "//Test" becomes "// Test". This change is aimed to improve code readability and conformance to certain coding styles. If a comment starts with a non-alphanumeric character, the space isn't added, e.g. "//-*-c++-*-" stays unchanged. Reviewers: klimek Reviewed By: klimek CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D949 llvm-svn: 183750
* Fixed calculation of penalty when breaking tokens.Alexander Kornienko2013-06-071-9/+13
| | | | | | | | | | | | | | | | | | | | | Summary: Introduced two new style parameters: PenaltyBreakComment and PenaltyBreakString. Add penalty for each character of a breakable token beyond the column limit (this relates mainly to comments, as they are broken only on whitespace). Tuned PenaltyBreakComment to prefer comment breaking over breaking inside most binary expressions. Fixed a bug that prevented *, & and && from being considered TT_BinaryOperator in the presense of adjacent comments. Reviewers: klimek, djasper Reviewed By: klimek CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D933 llvm-svn: 183530
* UTF-8 support for clang-format.Alexander Kornienko2013-06-051-5/+11
| | | | | | | | | | | | | | | | | | | | Summary: Detect if the file is valid UTF-8, and if this is the case, count code points instead of just using number of bytes in all (hopefully) places, where number of columns is needed. In particular, use the new FormatToken.CodePointCount instead of TokenLength where appropriate. Changed BreakableToken implementations to respect utf-8 character boundaries when in utf-8 mode. Reviewers: klimek, djasper Reviewed By: djasper CC: cfe-commits, rsmith, gribozavr Differential Revision: http://llvm-reviews.chandlerc.com/D918 llvm-svn: 183312
* Major refactoring of BreakableToken.Manuel Klimek2013-05-271-172/+131
| | | | | | | | | | | | | | | | | | | Unify handling of whitespace when breaking protruding tokens with other whitespace replacements. As a side effect, the BreakableToken structure changed significantly: - have a common base class for single-line breakable tokens, as they are much more similar - revamp handling of multi-line comments; we now calculate the information about lines in multi-line comments similar to normal tokens, and always issue replacements As a result, we were able to get rid of special casing of trailing whitespace deletion for comments in the whitespace manager and the BreakableToken and fixed bugs related to tab handling and escaped newlines. llvm-svn: 182738
* Makes whitespace management more consistent.Manuel Klimek2013-05-221-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | Instead of selectively storing some changes and directly generating replacements for others, we now notify the WhitespaceManager of the whitespace before every token (and optionally with more changes inside tokens). Then, we run over all whitespace in the very end in original source order, where we have all information available to correctly align comments and escaped newlines. The future direction is to pull more of the comment alignment implementation that is now in the BreakableToken into the WhitespaceManager. This fixes a bug when aligning comments or escaped newlines in unwrapped lines that are handled out of order: #define A \ f({ \ g(); \ }); ... now gets correctly layouted. llvm-svn: 182467
* Unified token breaking logic: support for line comments.Alexander Kornienko2013-04-171-67/+81
| | | | | | | | | | | | | | | | | | | Summary: Added BreakableLineComment, moved common code from BreakableBlockComment to newly added BreakableComment. As a side-effect of the rewrite, found another problem with escaped newlines and had to change code which removes trailing whitespace from line comments not to break after this patch. Reviewers: klimek, djasper Reviewed By: klimek CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D682 llvm-svn: 179693
* Unified token breaking logic for strings and block comments.Alexander Kornienko2013-04-151-0/+226
Summary: Both strings and block comments are broken into lines in breakProtrudingToken. Logic specific for strings or block comments is abstracted in implementations of the BreakToken interface. Among other goodness, this change fixes placement of backslashes after a block comment inside a preprocessor directive (see removed FIXMEs in unit tests). The code is far from being polished, and some parts of it will be changed for line comments support. Reviewers: klimek Reviewed By: klimek CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D665 llvm-svn: 179526
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