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This is a mirror of http://www.vim.org/scripts/script.php?script_id=1690 DESCRIPTION In order to achieve consistent indentation, you need to agree on the indentation width (e.g. 2, 4 or 8 spaces), and the indentation method (only tabs, only spaces, or a mix of tabs and spaces that minimizes the number of spaces and is called 'softtabstop' in Vim). Unfortunately, different people use different editors and cannot agree on "the right" width and method. Consistency is important, though, to make the text look the same in different editors and on printouts. If any editor inadvertently converts tabs and spaces, version control and diff'ing will be much harder to do. The IndentConsistencyCop examines the indent of the buffer and analyzes the used indent widths and methods. If there are conflicting ones or if bad combinations of tabs and spaces are found, it alerts you and offers help in locating the offenders - just like a friendly policeman: :IndentConsistencyCop Found inconsistent indentation in this buffer; generated from these conflicting settings: - tabstop (1838 of 3711 lines) <- buffer setting - 4 spaces (33 of 3711 lines) - bad mix of spaces and tabs (4 of 3711 lines) [I]gnore, (H)ighlight wrong indents...: h What kind of inconsistent indents do you want to highlight? Not [b]uffer settings (sts4), Not best (g)uess (tab), Not (c)hosen setting..., (I)llegal indents only: g Marked 180 incorrect lines. If the buffer contents are okay, the IndentConsistencyCop can evaluate whether Vim's buffer settings are compatible with the indent used in the buffer. The friendly cop offers to correct your buffer settings if you run the risk of screwing up the indent consistency with your wrong buffer settings: :IndentConsistencyCop The buffer's indent settings are inconsistent with the used indent '8 spaces'; these settings must be changed: - expandtab from 0 to 1 How do you want to deal with the inconsistency? [I]gnore, (C)hange: c The buffer settings have been changed: tabstop=8 softtabstop=0 shiftwidth=8 expandtab The IndentConsistencyCop is only concerned with the amount of whitespace from column 1 to the first visible character; it does not check the alignment of tables, equals signs in variable assignments, etc. Neither does it know any specifics about programming languages, or your personal preferred indentation style. RELATED WORKS - IndentConsistencyCopAutoCmds (vimscript #1691) complements this plugin. It automatically triggers the IndentConsistencyCop for certain filetypes when loading the buffer and optionally also on each write - Indent Finder (vimscript #513) is a Python script and Vim plugin that scans any loaded buffer and configures the appropriate indent settings - yaifa.vim (vimscript #3096) is a port to vimscript of the above - detectindent.vim (https://github.com/ciaranm/detectindent) by Ciaran McCreesh tries to auto-detect the indentation settings - GuessIndent (vimscript #4251) is based on detectindent.vim - indentdetect.vim (https://github.com/ervandew/vimfiles/blob/master/vim/plugin/indentdetect.vim) by Eric Van Dewoestine performs a simple detection and can set defaults based on the filespec - matchindent.vim (vimscript #4066) detects tabs, 2 and 4-space indents and adapts the indent settings accordingly - sleuth.vim (vimscript #4375) by Tim Pope automatically adjusts 'shiftwidth' and 'tabstop' heuristically (via a simplistic sampling that does not check for bad or inconsistent indents) or by looking at other files of the same type - filetype (vimscript #5065) highlights tabs when 'expandtab' is set, trailing spaces, and lines longer than 'textwidth', but doesn't actually check conformance to indent USAGE Start the examination of the current buffer or range via: :[range]IndentConsistencyCop The triggering can be done automatically for configurable filetypes with the autocmds defined in IndentConsistencyCopAutoCmds.vim (vimscript #1691). If you chose to highlight incorrect indents, either re-execute the IndentConsistencyCop to update the highlighting, or execute :IndentConsistencyCopOff to remove the highlightings. If you just want to check a read-only file, or do not intend to modify the file, you don't care if Vim's buffer settings are compatible with the used indent. In this case, you can use :[range]IndentRangeConsistencyCop instead of :IndentConsistencyCop.