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html-indent is a html file indenter and checker.

It can be used for a single file, an entire tree, or from stdin (for editorplugin integration).

It supports multi-line tags, and preserves relative indentation in scripts andcomments sections. Except spaces, the document structure is preserved and theonly validation check is for balanced tags.

Usage: html-indent [FILE] [options]Options:    -h, --help          print this help menu    -r, --recursive     process all files in directory tree    -e, --extension ext file extension for recursive processing    -n, --dry-run       dry run, don't write files        --numeric       output indentation value    -c, --check         check malformed tags    -l, --lines [start]-[end]                        limit output to selected lines    -p, --print         print html result to stdout

html-indent is written inRust. For the moment theonly option is to build it from source, soinstall Rustthen type

$ cargo install

There is aVim plugin undertoolsdirectory. Just drop it in~/.vim/indent/ and don't forget to have

filetype plugin indent on

in your.vimrc.

• HTML Tidy : Tidy is designed to clean-up htmlcomplete documents and I didn't succeed to indent html fragments with thecommand line version.
• GNU Emacseditoruniverse environment. The includedhtml-modeandweb-mode, like manyEmacs's majormodes have implementedindent-region function.
• Atom editor. Unfortunately, the indentation doesn't workwith newlines inside tags.

• Better error handling
• PHP integration
• Sublime text plugin