Class: Regexp
- Defined in:
- opal/opal/corelib/regexp.rb,
opal/opal/corelib/marshal/write_buffer.rb
Constant Summary
- IGNORECASE =
1
- MULTILINE =
4
Class Method Summary collapse
- ._load(args) ⇒ Object
- .allocate ⇒ Object
- .escape(string) ⇒ Object (also: quote)
- .last_match(n = nil) ⇒ Object
- .new(regexp, options = undefined) ⇒ Object
- .union(*parts) ⇒ Object
Instance Method Summary collapse
- #==(other) ⇒ Object (also: #eql?)
- #===(string) ⇒ Object
- #=~(string) ⇒ Object
- #__marshal__(buffer) ⇒ Object
- #casefold? ⇒ Boolean
- #inspect ⇒ Object
- #match(string, pos = undefined, &block) ⇒ Object
- #options ⇒ Object
- #source ⇒ Object (also: #to_s)
- #~ ⇒ Object
Class Method Details
._load(args) ⇒ Object
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# File 'opal/opal/corelib/regexp.rb', line 206 def self._load(args) self.new(*args) end |
.allocate ⇒ Object
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# File 'opal/opal/corelib/regexp.rb', line 10 def allocate allocated = super `#{allocated}.uninitialized = true` allocated end |
.escape(string) ⇒ Object Also known as: quote
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# File 'opal/opal/corelib/regexp.rb', line 16 def escape(string) %x{ return string.replace(/([-[\]\/{}()*+?.^$\\| ])/g, '\\$1') .replace(/[\n]/g, '\\n') .replace(/[\r]/g, '\\r') .replace(/[\f]/g, '\\f') .replace(/[\t]/g, '\\t'); } end |
.last_match(n = nil) ⇒ Object
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# File 'opal/opal/corelib/regexp.rb', line 26 def last_match(n=nil) if n.nil? $~ else $~[n] end end |
.new(regexp, options = undefined) ⇒ Object
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# File 'opal/opal/corelib/regexp.rb', line 75 def new(regexp, = undefined) %x{ if (regexp.$$is_regexp) { return new RegExp(regexp); } regexp = #{Opal.coerce_to!(regexp, String, :to_str)}; if (regexp.charAt(regexp.length - 1) === '\\' && regexp.charAt(regexp.length - 2) !== '\\') { #{raise RegexpError, "too short escape sequence: /#{regexp}/"} } if (options === undefined || #{!}) { return new RegExp(regexp); } if (options.$$is_number) { var temp = ''; if (#{IGNORECASE} & options) { temp += 'i'; } if (#{MULTILINE} & options) { temp += 'm'; } options = temp; } else { options = 'i'; } return new RegExp(regexp, options); } end |
.union(*parts) ⇒ Object
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# File 'opal/opal/corelib/regexp.rb', line 36 def union(*parts) %x{ var is_first_part_array, quoted_validated, part, options, each_part_options; if (parts.length == 0) { return /(?!)/; } // cover the 2 arrays passed as arguments case is_first_part_array = parts[0].$$is_array; if (parts.length > 1 && is_first_part_array) { #{raise TypeError, 'no implicit conversion of Array into String'} } // deal with splat issues (related to https://github.com/opal/opal/issues/858) if (is_first_part_array) { parts = parts[0]; } options = undefined; quoted_validated = []; for (var i=0; i < parts.length; i++) { part = parts[i]; if (part.$$is_string) { quoted_validated.push(#{escape(`part`)}); } else if (part.$$is_regexp) { each_part_options = #{`part`.}; if (options != undefined && options != each_part_options) { #{raise TypeError, 'All expressions must use the same options'} } options = each_part_options; quoted_validated.push('('+part.source+')'); } else { quoted_validated.push(#{escape(`part`.to_str)}); } } } # Take advantage of logic that can parse options from JS Regex new(`quoted_validated`.join('|'), `options`) end |
Instance Method Details
#==(other) ⇒ Object Also known as: eql?
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# File 'opal/opal/corelib/regexp.rb', line 106 def ==(other) `other.constructor == RegExp && self.toString() === other.toString()` end |
#===(string) ⇒ Object
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# File 'opal/opal/corelib/regexp.rb', line 110 def ===(string) `#{match(Opal.coerce_to?(string, String, :to_str))} !== nil` end |
#=~(string) ⇒ Object
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# File 'opal/opal/corelib/regexp.rb', line 114 def =~(string) match(string) && $~.begin(0) end |
#__marshal__(buffer) ⇒ Object
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# File 'opal/opal/corelib/marshal/write_buffer.rb', line 78 def __marshal__(buffer) buffer.save_link(self) buffer.write_ivars_prefix(self) buffer.write_extends(self) buffer.write_user_class(Regexp, self) buffer.append('/') buffer.write_regexp(self) buffer.write_ivars_suffix(self) end |
#casefold? ⇒ Boolean
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# File 'opal/opal/corelib/regexp.rb', line 200 def casefold? `self.ignoreCase` end |
#inspect ⇒ Object
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# File 'opal/opal/corelib/regexp.rb', line 120 def inspect `self.toString()` end |
#match(string, pos = undefined, &block) ⇒ Object
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# File 'opal/opal/corelib/regexp.rb', line 124 def match(string, pos = undefined, &block) %x{ if (self.uninitialized) { #{raise TypeError, 'uninitialized Regexp'} } if (pos === undefined) { pos = 0; } else { pos = #{Opal.coerce_to(pos, Integer, :to_int)}; } if (string === nil) { return #{$~ = nil}; } string = #{Opal.coerce_to(string, String, :to_str)}; if (pos < 0) { pos += string.length; if (pos < 0) { return #{$~ = nil}; } } var source = self.source; var flags = 'g'; // m flag + a . in Ruby will match white space, but in JS, it only matches beginning/ending of lines, so we get the equivalent here if (self.multiline) { source = source.replace('.', "[\\s\\S]"); flags += 'm'; } // global RegExp maintains state, so not using self/this var md, re = new RegExp(source, flags + (self.ignoreCase ? 'i' : '')); while (true) { md = re.exec(string); if (md === null) { return #{$~ = nil}; } if (md.index >= pos) { #{$~ = MatchData.new(`re`, `md`)} return block === nil ? #{$~} : #{block.call($~)}; } re.lastIndex = md.index + 1; } } end |
#options ⇒ Object
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# File 'opal/opal/corelib/regexp.rb', line 182 def # Flags would be nice to use with this, but still experimental - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/flags %x{ if (self.uninitialized) { #{raise TypeError, 'uninitialized Regexp'} } var result = 0; // should be supported in IE6 according to https://msdn.microsoft.com/en-us/library/7f5z26w4(v=vs.94).aspx if (self.multiline) { result |= #{MULTILINE}; } if (self.ignoreCase) { result |= #{IGNORECASE}; } return result; } end |
#source ⇒ Object Also known as: to_s
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# File 'opal/opal/corelib/regexp.rb', line 178 def source `self.source` end |
#~ ⇒ Object
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# File 'opal/opal/corelib/regexp.rb', line 174 def ~ self =~ $_ end |