xfmt formats long lines, playing nice with text in code. To install: go get github.com/mjl-/xfmt/cmd/xfmt Xfmt reads from stdin, writes formatted output to stdout. Xfmt wraps long lines at 80 characters, configurable through -width. But it counts text width excluding indenting and markup. Fmt formats to a max line length that includes indenting. We don't care about total max line length nowadays, we care about a human readable paragraph, which has a certain text width regardless of indent. Xfmt recognizes lines with first non-whitespace of "//" and "#" as line comments, and repeats that prefix on later lines. Xfmt keep does not merge lines if the first non-prefix text starts with interpunction or numbers. E.g. "- item1" or "1. point 1". Xfmt does not merge multiple spaces, it assumes you intended what you typed. # todo - possibly recognize itemized lists in comments and indent the later lines with whitespace - something else