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# Some simple methods for helping manage automatic documentation generation.
module Puppet::Util::Docs
# Specify the actual doc string.
def desc(str)
@doc = str
end
# Add a new autodoc block. We have to define these as class methods,
# rather than just sticking them in a hash, because otherwise they're
# too difficult to do inheritance with.
def dochook(name, &block)
method = "dochook_" + name.to_s
meta_def method, &block
end
attr_writer :doc
# Generate the full doc string.
def doc
extra = methods.find_all { |m| m.to_s =~ /^dochook_.+/ }.sort.collect { |m|
self.send(m)
}.join(" ")
if defined?(@doc) and @doc
@doc + extra
else
extra
end
end
# Build a table
def doctable(headers, data)
str = "\n\n"
lengths = []
# Figure out the longest field for all columns
data.each do |name, values|
[name, values].flatten.each_with_index do |value, i|
lengths[i] ||= 0
lengths[i] = value.to_s.length if value.to_s.length > lengths[i]
end
end
# The headers could also be longest
headers.each_with_index do |value, i|
lengths[i] = value.to_s.length if value.to_s.length > lengths[i]
end
# Add the top header row
str += lengths.collect { |num| "=" * num }.join(" ") + "\n"
# And the header names
str += headers.zip(lengths).collect { |value, num| pad(value, num) }.join(" ") + "\n"
# And the second header row
str += lengths.collect { |num| "=" * num }.join(" ") + "\n"
# Now each data row
data.sort { |a, b| a[0].to_s <=> b[0].to_s }.each do |name, rows|
str += [name, rows].flatten.zip(lengths).collect do |value, length|
pad(value, length)
end.join(" ") + "\n"
end
# And the bottom line row
str += lengths.collect { |num| "=" * num }.join(" ") + "\n"
str + "\n"
end
attr_reader :nodoc
def nodoc?
nodoc
end
# Pad a field with spaces
def pad(value, length)
value.to_s + (" " * (length - value.to_s.length))
end
# Handle the inline indentation in the docs.
def scrub(text)
# Stupid markdown
#text = text.gsub("<%=", "<%=")
# For text with no carriage returns, there's nothing to do.
if text !~ /\n/
return text
end
indent = nil
# If we can match an indentation, then just remove that same level of
# indent from every line. However, ignore any indentation on the
# first line, since that can be inconsistent.
text = text.lstrip()
text.gsub!(/^([\t]+)/) { |s| " "*8*s.length(); } # Expand leading tabs
# Find first non-empty line after the first line:
line2start = (text =~ /(\n?\s*\n)/)
line2start += $1.length
if (text[line2start..-1] =~ /^([ ]+)\S/) == 0
indent = Regexp.quote($1)
begin
return text.gsub(/^#{indent}/,'')
rescue => detail
puts detail.backtrace
puts detail
end
else
return text
end
end
module_function :scrub
end
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