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Add line break and indent to subcommand descriptions

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EricFromCanada 2020-04-18 12:07:28 -04:00
parent ef3b148147
commit 0acfb4b819
1 changed files with 5 additions and 3 deletions
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8
Library/Homebrew/utils/formatter.rb
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@ -36,15 +36,17 @@ module Formatter
# Wraps text to fit within a given number of columns using regular expressions that:
#
# 1. convert hard-wrapped paragraphs to a single line
# 2. find any option descriptions longer than a pre-set length and wrap between words
# 2. add line break and indent to subcommand descriptions
# 3. find any option descriptions longer than a pre-set length and wrap between words
# with a hanging indent, without breaking any words that overflow
# 3. wrap any remaining description lines that need wrapping with the same indent
# 4. wrap all lines to the given width.
# 4. wrap any remaining description lines that need wrapping with the same indent
# 5. wrap all lines to the given width.
# @see https://macromates.com/blog/2006/wrapping-text-with-regular-expressions/
def wrap(s, width = 172)
desc = OPTION_DESC_WIDTH
indent = width - desc
s.gsub(/(?<=\S) *\n(?=\S)/, " ")
.gsub(/([`>)\]]:) /, "\\1\n ")
.gsub(/^( +-.+ +(?=\S.{#{desc}}))(.{1,#{desc}})( +|$)\n?/, "\\1\\2\n" + " " * indent)
.gsub(/^( {#{indent}}(?=\S.{#{desc}}))(.{1,#{desc}})( +|$)\n?/, "\\1\\2\n" + " " * indent)
.gsub(/(.{1,#{width}})( +|$)\n?/, "\\1\n")