Module: Stringex::StringExtensions::PublicInstanceMethods
- Defined in:
- lib/stringex/string_extensions.rb
Overview
These methods are all included into the String class.
Instance Method Summary collapse
-
#collapse(character = " ") ⇒ Object
Removes specified character from the beginning and/or end of the string and then performs
String#squeeze(character)
, condensing runs of the character within the string. -
#convert_accented_html_entities ⇒ Object
Converts HTML entities into the respective non-accented letters.
-
#convert_miscellaneous_characters(options = {}) ⇒ Object
Converts various common plaintext characters to a more URI-friendly representation.
-
#convert_miscellaneous_html_entities ⇒ Object
Converts HTML entities (taken from common Textile/RedCloth formattings) into plain text formats.
-
#convert_smart_punctuation ⇒ Object
Converts MS Word ‘smart punctuation’ to ASCII.
-
#convert_vulgar_fractions ⇒ Object
Converts vulgar fractions from supported HTML entities and Unicode to plain text formats.
-
#limit(limit = nil, truncate_words = true) ⇒ Object
Returns the string limited in size to the value of limit.
-
#remove_formatting(options = {}) ⇒ Object
Performs multiple text manipulations.
-
#replace_whitespace(replacement = " ") ⇒ Object
Replace runs of whitespace in string.
-
#strip_html_tags(leave_whitespace = false) ⇒ Object
Removes HTML tags from text.
-
#to_html(lite_mode = false) ⇒ Object
Returns the string converted (via Textile/RedCloth) to HTML format or self [with a friendly warning] if Redcloth is not available.
-
#to_url(options = {}) ⇒ Object
Create a URI-friendly representation of the string.
- #whole_word_limit(limit) ⇒ Object
Instance Method Details
#collapse(character = " ") ⇒ Object
Removes specified character from the beginning and/or end of the string and then performs String#squeeze(character)
, condensing runs of the character within the string.
Note: This method has been superceded by ActiveSupport’s squish method.
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# File 'lib/stringex/string_extensions.rb', line 19 def collapse(character = " ") sub(/^#{character}*/, "").sub(/#{character}*$/, "").squeeze(character) end |
#convert_accented_html_entities ⇒ Object
Converts HTML entities into the respective non-accented letters. Examples:
"á".convert_accented_entities # => "a"
"ç".convert_accented_entities # => "c"
"è".convert_accented_entities # => "e"
"î".convert_accented_entities # => "i"
"ø".convert_accented_entities # => "o"
"ü".convert_accented_entities # => "u"
Note: This does not do any conversion of Unicode/ASCII accented-characters. For that functionality please use to_ascii
.
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# File 'lib/stringex/string_extensions.rb', line 34 def convert_accented_html_entities stringex_convert do cleanup_accented_html_entities! end end |
#convert_miscellaneous_characters(options = {}) ⇒ Object
Converts various common plaintext characters to a more URI-friendly representation. Examples:
"foo & bar".convert_misc_characters # => "foo and bar"
"Chanel #9".convert_misc_characters # => "Chanel number nine"
"user@host".convert_misc_characters # => "user at host"
"google.com".convert_misc_characters # => "google dot com"
"$10".convert_misc_characters # => "10 dollars"
"*69".convert_misc_characters # => "star 69"
"100%".convert_misc_characters # => "100 percent"
"windows/mac/linux".convert_misc_characters # => "windows slash mac slash linux"
It allows localization of conversions so you can use it to convert characters into your own language. Example:
I18n.backend.store_translations :de, { :stringex => { :characters => { :and => "und" } } }
I18n.locale = :de
"ich & dich".convert_misc_characters # => "ich und dich"
Note: Because this method will convert any & symbols to the string “and”, you should run any methods which convert HTML entities (convert_accented_html_entities and convert_miscellaneous_html_entities) before running this method.
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# File 'lib/stringex/string_extensions.rb', line 62 def convert_miscellaneous_characters( = {}) stringex_convert() do normalize_currency! translate! :ellipses, :currencies, :abbreviations, :characters, :apostrophes cleanup_characters! end end |
#convert_miscellaneous_html_entities ⇒ Object
Converts HTML entities (taken from common Textile/RedCloth formattings) into plain text formats.
Note: This isn’t an attempt at complete conversion of HTML entities, just those most likely to be generated by Textile.
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# File 'lib/stringex/string_extensions.rb', line 74 def convert_miscellaneous_html_entities stringex_convert do translate! :html_entities cleanup_html_entities! end end |
#convert_smart_punctuation ⇒ Object
Converts MS Word ‘smart punctuation’ to ASCII
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# File 'lib/stringex/string_extensions.rb', line 83 def convert_smart_punctuation stringex_convert do cleanup_smart_punctuation! end end |
#convert_vulgar_fractions ⇒ Object
Converts vulgar fractions from supported HTML entities and Unicode to plain text formats.
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# File 'lib/stringex/string_extensions.rb', line 90 def convert_vulgar_fractions stringex_convert do translate! :vulgar_fractions end end |
#limit(limit = nil, truncate_words = true) ⇒ Object
Returns the string limited in size to the value of limit.
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# File 'lib/stringex/string_extensions.rb', line 97 def limit(limit = nil, truncate_words = true) if limit.nil? self else truncate_words == false ? self.whole_word_limit(limit) : self[0...limit] end end |
#remove_formatting(options = {}) ⇒ Object
Performs multiple text manipulations. Essentially a shortcut for typing them all. View source below to see which methods are run.
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# File 'lib/stringex/string_extensions.rb', line 124 def remove_formatting( = {}) . convert_smart_punctuation. convert_accented_html_entities. convert_vulgar_fractions. convert_miscellaneous_html_entities. convert_miscellaneous_characters(). to_ascii. # NOTE: String#to_ascii may convert some Unicode characters to ascii we'd already transliterated # so we need to do it again just to be safe convert_miscellaneous_characters(). collapse end |
#replace_whitespace(replacement = " ") ⇒ Object
Replace runs of whitespace in string. Defaults to a single space but any replacement string may be specified as an argument. Examples:
"Foo bar".replace_whitespace # => "Foo bar"
"Foo bar".replace_whitespace("-") # => "Foo-bar"
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# File 'lib/stringex/string_extensions.rb', line 143 def replace_whitespace(replacement = " ") gsub(/\s+/, replacement) end |
#strip_html_tags(leave_whitespace = false) ⇒ Object
Removes HTML tags from text. NOTE: This code is simplified from Tobias Luettke’s regular expression in Typo.
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# File 'lib/stringex/string_extensions.rb', line 149 def (leave_whitespace = false) string = stringex_convert do end leave_whitespace ? string : string.replace_whitespace(' ') end |
#to_html(lite_mode = false) ⇒ Object
Returns the string converted (via Textile/RedCloth) to HTML format or self [with a friendly warning] if Redcloth is not available.
Using :lite
argument will cause RedCloth to not wrap the HTML in a container P element, which is useful behavior for generating header element text, etc. This is roughly equivalent to ActionView’s textilize_without_paragraph
except that it makes RedCloth do all the work instead of just gsubbing the return from RedCloth.
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# File 'lib/stringex/string_extensions.rb', line 164 def to_html(lite_mode = false) if defined?(RedCloth) if lite_mode RedCloth.new(self, [:lite_mode]).to_html else if self =~ /<pre>/ RedCloth.new(self).to_html.tr("\t", "") else RedCloth.new(self).to_html.tr("\t", "").gsub(/\n\n/, "") end end else warn "String#to_html was called without RedCloth being successfully required" self end end |
#to_url(options = {}) ⇒ Object
Create a URI-friendly representation of the string. This is used internally by acts_as_url but can be called manually in order to generate an URI-friendly version of any string.
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# File 'lib/stringex/string_extensions.rb', line 184 def to_url( = {}) return self if [:exclude] && [:exclude].include?(self) = .merge() whitespace_replacement_token = [:replace_whitespace_with] dummy = remove_formatting(). replace_whitespace(whitespace_replacement_token). collapse("-"). limit([:limit], [:truncate_words]) dummy.downcase! unless [:force_downcase] == false dummy end |
#whole_word_limit(limit) ⇒ Object
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# File 'lib/stringex/string_extensions.rb', line 105 def whole_word_limit(limit) whole_words = [] words = self.split('-') words.each do |word| if word.size > limit break else whole_words << word limit -= (word.size + 1) end end whole_words.join('-') end |