Class: String

Inherits:
Object
  • Object
show all
Includes:
Doing::Color
Defined in:
lib/doing/string.rb,
lib/doing/string_chronify.rb,
lib/doing/template_string.rb

Overview

Chronify methods for strings

Direct Known Subclasses

Doing::TemplateString

Constant Summary

Constants included from Doing::Color

Doing::Color::ATTRIBUTES, Doing::Color::ATTRIBUTE_NAMES, Doing::Color::COLORED_REGEXP

Instance Method Summary collapse

Methods included from Doing::Color

attributes, coloring?, #support?

Instance Method Details

#add_at ⇒ Object 



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# File 'lib/doing/string.rb', line 366

def add_at
  strip.sub(/^([+-]*)@/, '\1')
end

#add_tags(tags, remove: false) ⇒ Object 



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# File 'lib/doing/string.rb', line 378

def add_tags(tags, remove: false)
  title = self.dup
  tags = tags.to_tags
  tags.each { |tag| title.tag!(tag, remove: remove) }
  title
end

#add_tags!(tags, remove: false) ⇒ Object 



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# File 'lib/doing/string.rb', line 374

def add_tags!(tags, remove: false)
  replace add_tags(tags, remove: remove)
end

#cap_first ⇒ Object

Capitalize on the first character on string

Returns:

  • Capitalized string



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# File 'lib/doing/string.rb', line 256

def cap_first
  sub(/^\w/) do |m|
    m.upcase
  end
end

#chronify(**options) ⇒ DateTime

Converts input string into a Time object when input takes on the following formats: - interval format e.g. '1d2h30m', '45m' etc. - a semantic phrase e.g. 'yesterday 5:30pm' - a strftime e.g. '2016-03-15 15:32:04 PDT'

Parameters:

  • options —

    Additional options

Options Hash (**options):

  • :future (Boolean) —

    assume future date (default: false)

  • :guess (Symbol) —

    :begin or :end to assume beginning or end of arbitrary time range

Returns:

  • (DateTime) —

    result

Raises:

  • (InvalidTimeExpression) 


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# File 'lib/doing/string_chronify.rb', line 27

def chronify(**options)
  now = Time.now
  raise InvalidTimeExpression, "Invalid time expression #{inspect}" if to_s.strip == ''

  secs_ago = if match(/^(\d+)$/)
               # plain number, assume minutes
               Regexp.last_match(1).to_i * 60
             elsif (m = match(/^(?:(?<day>\d+)d)?(?:(?<hour>\d+)h)?(?:(?<min>\d+)m)?$/i))
               # day/hour/minute format e.g. 1d2h30m
               [[m['day'], 24 * 3600],
                [m['hour'], 3600],
                [m['min'], 60]].map { |qty, secs| qty ? (qty.to_i * secs) : 0 }.reduce(0, :+)
             end

  if secs_ago
    now - secs_ago
  else
    Chronic.parse(self, {
                    guess: options.fetch(:guess, :begin),
                    context: options.fetch(:future, false) ? :future : :past,
                    ambiguous_time_range: 8
                  })
  end
end

#chronify_qty ⇒ Integer

Converts simple strings into seconds that can be added to a Time object

Input string can be HH:MM or XX[dhm][XXhm][XXm]

Returns:

  • (Integer) —

    seconds



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# File 'lib/doing/string_chronify.rb', line 61

def chronify_qty
  minutes = 0
  case self.strip
  when /^(\d+):(\d\d)$/
    minutes += Regexp.last_match(1).to_i * 60
    minutes += Regexp.last_match(2).to_i
  when /^(\d+(?:\.\d+)?)([hmd])?$/
    amt = Regexp.last_match(1)
    type = Regexp.last_match(2).nil? ? 'm' : Regexp.last_match(2)

    minutes = case type.downcase
              when 'm'
                amt.to_i
              when 'h'
                (amt.to_f * 60).round
              when 'd'
                (amt.to_f * 60 * 24).round
              else
                minutes
              end
  end
  minutes * 60
end

#clean_unlinked_urls ⇒ Object

Clean up unlinked 



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# File 'lib/doing/string.rb', line 562

def clean_unlinked_urls
  gsub(/<(\w+:.*?)>/) do |match|
    m = Regexp.last_match
    if m[1] =~ /<a href/
      match
    else
      %(<a href="#{m[1]}" title="Link to #{m[1]}">[link]</a>)
    end
  end
end

#compress ⇒ Object

Compress multiple spaces to single space



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# File 'lib/doing/string.rb', line 70

def compress
  gsub(/ +/, ' ').strip
end

#compress! ⇒ Object 



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# File 'lib/doing/string.rb', line 74

def compress!
  replace compress
end

#dedup_tags ⇒ Object 



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# File 'lib/doing/string.rb', line 471

def dedup_tags
  title = dup
  tags = title.scan(/(?<=\A| )(@(\S+?)(\([^)]+\))?)(?= |\Z)/).uniq
  tags.each do |tag|
    found = false
    title.gsub!(/( |^)#{tag[1]}(\([^)]+\))?(?= |$)/) do |m|
      if found
        ''
      else
        found = true
        m
      end
    end
  end
  title
end

#dedup_tags! ⇒ Object

Remove duplicate tags, leaving only first occurrence

Returns:

  • Deduplicated string



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# File 'lib/doing/string.rb', line 467

def dedup_tags!
  replace dedup_tags
end

#highlight_tags(color = 'yellow', last_color: nil) ⇒ String

Colorize @tags with ANSI escapes

Parameters:

  • color (String) (defaults to: 'yellow') —

    color (see #Color)

Returns:

  • (String) —

    string with @tags highlighted



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# File 'lib/doing/string.rb', line 90

def highlight_tags(color = 'yellow', last_color: nil)
  unless last_color
    escapes = scan(/(\e\[[\d;]+m)[^\e]+@/)
    color = color.split(' ') unless color.is_a?(Array)
    tag_color = color.each_with_object([]) { |c, arr| arr << Doing::Color.send(c) }.join('')
    last_color = if !escapes.empty?
                   (escapes.count > 1 ? escapes[-2..-1] : [escapes[-1]]).map { |v| v[0] }.join('')
                 else
                   Doing::Color.default
                 end
  end
  gsub(/(\s|m)(@[^ ("']+)/, "\\1#{tag_color}\\2#{last_color}")
end

#highlight_tags!(color = 'yellow', last_color: nil) ⇒ Object

Parameters:

  • color (String) (defaults to: 'yellow') —

    color (see #Color)



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# File 'lib/doing/string.rb', line 79

def highlight_tags!(color = 'yellow', last_color: nil)
  replace highlight_tags(color)
end

#ignore? ⇒ Boolean

Test if line should be ignored

Returns:

  • (Boolean) —

    line is empty or comment



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# File 'lib/doing/string.rb', line 109

def ignore?
  line = self
  line =~ /^#/ || line =~ /^\s*$/
end

#is_rx? ⇒ Boolean

Determines if receiver is surrounded by slashes or starts with single quote

Returns:

  • (Boolean) —

    True if regex, False otherwise.



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# File 'lib/doing/string.rb', line 14

def is_rx?
  self =~ %r{(^/.*?/$|^')}
end

#last_color ⇒ String

Returns the last escape sequence from a string.

Actually returns all escape codes, with the assumption that the result of inserting them will generate the same color as was set at the end of the string. Because you can send modifiers like dark and bold separate from color codes, only using the last code may not render the same style.

Returns:

  • (String) —

    All escape codes in string



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# File 'lib/doing/string.rb', line 499

def last_color
  scan(/\e\[[\d;]+m/).join('')
end

#link_urls(**opt) ⇒ Object 



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# File 'lib/doing/string.rb', line 513

def link_urls(**opt)
  fmt = opt.fetch(:format, :html)
  return self unless fmt

  str = dup

  str = str.remove_self_links if fmt == :markdown

  str.replace_qualified_urls(format: fmt).clean_unlinked_urls
end

#link_urls!(**opt) ⇒ Object

Turn raw urls into HTML links

Parameters:

  • opt (Hash) —

    Additional Options



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# File 'lib/doing/string.rb', line 508

def link_urls!(**opt)
  fmt = opt.fetch(:format, :html)
  replace link_urls(format: fmt)
end

#normalize_bool(default = :and) ⇒ Object 



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# File 'lib/doing/string.rb', line 317

def normalize_bool(default = :and)
  case self
  when /(and|all)/i
    :and
  when /(any|or)/i
    :or
  when /(not|none)/i
    :not
  when /^p/i
    :pattern
  else
    default.is_a?(Symbol) ? default : default.normalize_bool
  end
end

#normalize_bool!(default = :and) ⇒ Object

Convert a boolean string to a symbol

Returns:

  • Symbol :and, :or, or :not



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# File 'lib/doing/string.rb', line 313

def normalize_bool!(default = :and)
  replace normalize_bool(default)
end

#normalize_case(default = :smart) ⇒ Object 



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# File 'lib/doing/string.rb', line 295

def normalize_case(default = :smart)
  case self
  when /^(c|sens)/i
    :sensitive
  when /^i/i
    :ignore
  when /^s/i
    :smart
  else
    default.is_a?(Symbol) ? default : default.normalize_case
  end
end

#normalize_case! ⇒ Object

Convert a case sensitivity string to a symbol

Returns:

  • Symbol :smart, :sensitive, :ignore



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# File 'lib/doing/string.rb', line 291

def normalize_case!
  replace normalize_case
end

#normalize_matching(default = :pattern) ⇒ Object 



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# File 'lib/doing/string.rb', line 341

def normalize_matching(default = :pattern)
  case self
  when /^f/i
    :fuzzy
  when /^p/i
    :pattern
  when /^e/i
    :exact
  else
    default.is_a?(Symbol) ? default : default.normalize_matching
  end
end

#normalize_matching!(default = :pattern) ⇒ Object

Convert a matching configuration string to a symbol

Returns:

  • Symbol :fuzzy, :pattern, :exact



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# File 'lib/doing/string.rb', line 337

def normalize_matching!(default = :pattern)
  replace normalize_bool(default)
end

#normalize_order(default = 'asc') ⇒ Object 



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# File 'lib/doing/string.rb', line 275

def normalize_order(default = 'asc')
  case self
  when /^a/i
    'asc'
  when /^d/i
    'desc'
  else
    default
  end
end

#normalize_order!(default = 'asc') ⇒ String

Convert a sort order string to a qualified type

Returns:

  • (String) —

    'asc' or 'desc'



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# File 'lib/doing/string.rb', line 271

def normalize_order!(default = 'asc')
  replace normalize_order(default)
end

#normalize_trigger ⇒ Object 



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# File 'lib/doing/string.rb', line 358

def normalize_trigger
  gsub(/\((?!\?:)/, '(?:').downcase
end

#normalize_trigger! ⇒ Object 



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# File 'lib/doing/string.rb', line 354

def normalize_trigger!
  replace normalize_trigger
end

#pluralize(number) ⇒ Object 



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# File 'lib/doing/string.rb', line 262

def pluralize(number)
  number == 1 ? self : "#{self}s"
end

#remove_self_links ⇒ Object

Remove formatting



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# File 'lib/doing/string.rb', line 525

def remove_self_links
  gsub(/<(.*?)>/) do |match|
    m = Regexp.last_match
    if m[1] =~ /^https?:/
      m[1]
    else
      match
    end
  end
end

#replace_qualified_urls(**options) ⇒ Object

Replace qualified urls



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# File 'lib/doing/string.rb', line 537

def replace_qualified_urls(**options)
  fmt = options.fetch(:format, :html)
  gsub(%r{(?mi)(?x:
  (?<!["'\[(\\])
  (?<protocol>(?:http|https)://)
  (?<domain>[\w\-]+(?:\.[\w\-]+)+)
  (?<path>[\w\-.,@?^=%&;:/~+#]*[\w\-@^=%&;/~+#])?
  )}) do |_match|
    m = Regexp.last_match
    url = "#{m['domain']}#{m['path']}"
    proto = m['protocol'].nil? ? 'http://' : m['protocol']
    case fmt
    when :terminal
      TTY::Link.link_to("#{proto}#{url}", "#{proto}#{url}")
    when :html
      %(<a href="#{proto}#{url}" title="Link to #{m['domain']}">[#{url}]</a>)
    when :markdown
      "[#{url}](#{proto}#{url})"
    else
      m[0]
    end
  end
end

#set_type(kind = nil) ⇒ Object 



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# File 'lib/doing/string.rb', line 573

def set_type(kind = nil)
  if kind
    case kind.to_s
    when /^a/i
      gsub(/^\[ *| *\]$/, '').split(/ *, */)
    when /^i/i
      to_i
    when /^f/i
      to_f
    when /^sy/i
      sub(/^:/, '').to_sym
    when /^b/i
      self =~ /^(true|yes)$/ ? true : false
    else
      to_s
    end
  else
    case self
    when /(^\[.*?\]$| *, *)/
      gsub(/^\[ *| *\]$/, '').split(/ *, */)
    when /^[0-9]+$/
      to_i
    when /^[0-9]+\.[0-9]+$/
      to_f
    when /^:\w+/
      sub(/^:/, '').to_sym
    when /^(true|yes)$/i
      true
    when /^(false|no)$/i
      false
    else
      to_s
    end
  end
end

#simple_wrap(width) ⇒ Object 



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# File 'lib/doing/string.rb', line 170

def simple_wrap(width)
  str = gsub(/@\S+\(.*?\)/) { |tag| tag.gsub(/\s/, '%%%%') }
  words = str.split(/ /).map { |word| word.gsub(/%%%%/, ' ') }
  out = []
  line = []

  words.each do |word|
    if word.uncolor.length >= width
      chars = word.uncolor.split('')
      out << chars.slice!(0, width - 1).join('') while chars.count >= width
      line << chars.join('')
      next
    elsif line.join(' ').uncolor.length + word.uncolor.length + 1 > width
      out.push(line.join(' '))
      line.clear
    end

    line << word.uncolor
  end
  out.push(line.join(' '))
  out.join("\n")
end

#tag(tag, value: nil, remove: false, rename_to: nil, regex: false, single: false, force: false) ⇒ String

Add, rename, or remove a tag

Parameters:

  • tag —

    The tag

  • value (String) (defaults to: nil) —

    Value for tag (@tag(value))

  • remove (Boolean) (defaults to: false) —

    Remove the tag instead of adding

  • rename_to (String) (defaults to: nil) —

    Replace tag with this tag

  • regex (Boolean) (defaults to: false) —

    Tag is regular expression

  • single (Boolean) (defaults to: false) —

    Operating on a single item (for logging)

  • force (Boolean) (defaults to: false) —

    With rename_to, add tag if it doesn't exist

Returns:

  • (String) —

    The string with modified tags



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# File 'lib/doing/string.rb', line 407

def tag(tag, value: nil, remove: false, rename_to: nil, regex: false, single: false, force: false)
  log_level = single ? :info : :debug
  title = dup
  title.chomp!
  tag = tag.sub(/^@?/, '')
  case_sensitive = tag !~ /[A-Z]/

  rx_tag = if regex
             tag.gsub(/\./, '\S')
           else
             tag.gsub(/\?/, '.').gsub(/\*/, '\S*?')
           end

  if remove || rename_to
    rx = Regexp.new("(?<=^| )@#{rx_tag}(?<parens>\\((?<value>[^)]*)\\))?(?= |$)", case_sensitive)
    m = title.match(rx)

    if m.nil? && rename_to && force
      title.tag!(rename_to, value: value, single: single)
    elsif m
      title.gsub!(rx) do
        rename_to ? "@#{rename_to}#{value.nil? ? m['parens'] : "(#{value})"}" : ''
      end

      title.dedup_tags!
      title.chomp!

      if rename_to
        f = "@#{tag}".cyan
        t = "@#{rename_to}".cyan
        Doing.logger.write(log_level, 'Tag:', %(renamed #{f} to #{t} in "#{title}"))
      else
        f = "@#{tag}".cyan
        Doing.logger.write(log_level, 'Tag:', %(removed #{f} from "#{title}"))
      end
    else
      Doing.logger.debug('Skipped:', "not tagged #{"@#{tag}".cyan}")
    end
  elsif title =~ /@#{tag}(?=[ (]|$)/
    Doing.logger.debug('Skipped:', "already tagged #{"@#{tag}".cyan}")
    return title
  else
    add = tag
    add += "(#{value})" unless value.nil?
    title.chomp!
    title += " @#{add}"

    title.dedup_tags!
    title.chomp!
    Doing.logger.write(log_level, 'Tag:', %(added #{('@' + tag).cyan} to "#{title}"))
  end

  title.gsub(/ +/, ' ')
end

#tag!(tag, **options) ⇒ Object

Add, rename, or remove a tag in place

See Also:



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# File 'lib/doing/string.rb', line 390

def tag!(tag, **options)
  replace tag(tag, **options)
end

#to_rx(distance: nil, case_type: nil) ⇒ Regexp

Convert string to fuzzy regex. Characters in words can be separated by up to distance characters in haystack, spaces indicate unlimited distance.

Examples:

"this word".to_rx(2) => /t.{0,3}h.{0,3}i.{0,3}s.{0,3}.*?w.{0,3}o.{0,3}r.{0,3}d/

Parameters:

  • distance (Integer) (defaults to: nil) —

    Allowed distance between characters

  • case_type (defaults to: nil) —

    The case type

Returns:

  • (Regexp) —

    Regex pattern



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# File 'lib/doing/string.rb', line 31

def to_rx(distance: nil, case_type: nil)
  distance ||= Doing.config.settings.dig('search', 'distance').to_i || 3
  case_type ||= Doing.config.settings.dig('search', 'case')&.normalize_case || :smart
  case_sensitive = case case_type
                   when :smart
                     self =~ /[A-Z]/ ? true : false
                   when :sensitive
                     true
                   else
                     false
                   end

  pattern = case dup.strip
            when %r{^/.*?/$}
              sub(%r{/(.*?)/}, '\1')
            when /^'/
              sub(/^'(.*?)'?$/, '\1')
            else
              split(/ +/).map do |w|
                w.split('').join(".{0,#{distance}}").gsub(/\+/, '\+').wildcard_to_rx
              end.join('.*?')
            end
  Regexp.new(pattern, !case_sensitive)
end

#to_tags ⇒ Object 



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# File 'lib/doing/string.rb', line 370

def to_tags
  gsub(/ *, */, ' ').gsub(/ +/, ' ').split(/ /).sort.uniq.map(&:add_at)
end

#truncate(len, ellipsis: '...') ⇒ Object

Truncate to nearest word

Parameters:

  • len —

    The length



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# File 'lib/doing/string.rb', line 119

def truncate(len, ellipsis: '...')
  return self if length <= len

  total = 0
  res = []

  split(/ /).each do |word|
    break if total + 1 + word.length > len

    total += 1 + word.length
    res.push(word)
  end
  res.join(' ') + ellipsis
end

#truncate!(len, ellipsis: '...') ⇒ Object 



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# File 'lib/doing/string.rb', line 134

def truncate!(len, ellipsis: '...')
  replace truncate(len, ellipsis: ellipsis)
end

#truncmiddle(len, ellipsis: '...') ⇒ Object

Truncate string in the middle

Parameters:

  • len —

    The length

  • ellipsis (defaults to: '...') —

    The ellipsis



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# File 'lib/doing/string.rb', line 144

def truncmiddle(len, ellipsis: '...')
  return self if length <= len
  len -= (ellipsis.length / 2).to_i
  total = length
  half = total / 2
  cut = (total - len) / 2
  sub(/(.{#{half - cut}}).*?(.{#{half - cut}})$/, "\\1#{ellipsis}\\2")
end

#truncmiddle!(len, ellipsis: '...') ⇒ Object 



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# File 'lib/doing/string.rb', line 153

def truncmiddle!(len, ellipsis: '...')
  replace truncmiddle(len, ellipsis: ellipsis)
end

#truthy? ⇒ Boolean

Test string for truthiness (0, "f", "false", "n", "no" all return false, case insensitive, otherwise true)

Returns:

  • (Boolean) —

    String is truthy



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# File 'lib/doing/string.rb', line 61

def truthy?
  if self =~ /^(0|f(alse)?|n(o)?)$/i
    false
  else
    true
  end
end

#uncolor ⇒ Object

Remove color escape codes

Returns:

  • clean string



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# File 'lib/doing/string.rb', line 162

def uncolor
  gsub(/\e\[[\d;]+m/,'')
end

#uncolor! ⇒ Object 



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# File 'lib/doing/string.rb', line 166

def uncolor!
  replace uncolor
end

#validate_color ⇒ String

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Extract the longest valid color from a string.

Allows %colors to bleed into other text and still be recognized, e.g. %greensomething still finds %green.

Returns:

  • (String) —

    a valid color name



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# File 'lib/doing/template_string.rb', line 18

def validate_color
  valid_color = nil
  compiled = ''
  split('').each do |char|
    compiled += char
    valid_color = compiled if Color.attributes.include?(compiled.to_sym)
  end

  valid_color
end

#wildcard_to_rx ⇒ Object 



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# File 'lib/doing/string.rb', line 362

def wildcard_to_rx
  gsub(/\?/, '\S').gsub(/\*/, '\S*?')
end

#wrap(len, pad: 0, indent: ' ', offset: 0, prefix: '', color: '', after: '', reset: '', pad_first: false) ⇒ Object

Wrap string at word breaks, respecting tags

Parameters:

  • len (Integer) —

    The length

  • offset (Integer) (defaults to: 0) —

    (Optional) The width to pad each subsequent line

  • prefix (String) (defaults to: '') —

    (Optional) A prefix to add to each line



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# File 'lib/doing/string.rb', line 200

def wrap(len, pad: 0, indent: '  ', offset: 0, prefix: '', color: '', after: '', reset: '', pad_first: false)
  last_color = color.empty? ? '' : after.last_color
  note_rx = /(?mi)(?<!\\)%(?<width>-?\d+)?(?:\^(?<mchar>.))?(?:(?<ichar>[ _t]|[^a-z0-9])(?<icount>\d+))?(?<prefix>.[ _t]?)?note/
  note = ''
  after = after.dup if after.frozen?
  after.sub!(note_rx) do
    note = Regexp.last_match(0)
    ''
  end

  left_pad = ' ' * offset
  left_pad += indent


  # return "#{left_pad}#{prefix}#{color}#{self}#{last_color} #{note}" unless len.positive?

  # Don't break inside of tag values
  str = gsub(/@\S+\(.*?\)/) { |tag| tag.gsub(/\s/, '%%%%') }.gsub(/\n/, ' ')

  words = str.split(/ /).map { |word| word.gsub(/%%%%/, ' ') }
  out = []
  line = []

  words.each do |word|
    if word.uncolor.length >= len
      chars = word.uncolor.split('')
      out << chars.slice!(0, len - 1).join('') while chars.count >= len
      line << chars.join('')
      next
    elsif line.join(' ').uncolor.length + word.uncolor.length + 1 > len
      out.push(line.join(' '))
      line.clear
    end

    line << word.uncolor
  end
  out.push(line.join(' '))

  last_color = ''
  out[0] = format("%-#{pad}s%s%s", out[0], last_color, after)

  out.map.with_index { |l, idx|
    if !pad_first && idx == 0
      "#{color}#{prefix}#{l}#{last_color}"
    else
      "#{left_pad}#{color}#{prefix}#{l}#{last_color}"
    end
  }.join("\n") + " #{note}".chomp
  # res.join("\n").strip + last_color + " #{note}".chomp
end