Class: Regexp
- Defined in:
- opal/opal/corelib/regexp.rb,
opal/opal/corelib/marshal/write_buffer.rb
Constant Summary
- IGNORECASE =
1
- EXTENDED =
2
- MULTILINE =
4
Class Method Summary collapse
- .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
- #match?(string, pos = undefined) ⇒ Boolean
- #options ⇒ Object
- #source ⇒ Object (also: #to_s)
- #~ ⇒ Object
Class Method Details
.allocate ⇒ Object
11 12 13 14 15 |
# File 'opal/opal/corelib/regexp.rb', line 11 def allocate allocated = super `#{allocated}.uninitialized = true` allocated end |
.escape(string) ⇒ Object Also known as: quote
17 18 19 |
# File 'opal/opal/corelib/regexp.rb', line 17 def escape(string) `Opal.escape_regexp(string)` end |
.last_match(n = nil) ⇒ Object
21 22 23 24 25 26 27 |
# File 'opal/opal/corelib/regexp.rb', line 21 def last_match(n = nil) if n.nil? $~ else $~[n] end end |
.new(regexp, options = undefined) ⇒ Object
74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 |
# File 'opal/opal/corelib/regexp.rb', line 74 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
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 |
# File 'opal/opal/corelib/regexp.rb', line 31 def union(*parts) %x{ var is_first_part_array, quoted_validated, part, options, each_part_options; if (parts.length == 0) { return /(?!)/; } // return fast if there's only one element if (parts.length == 1 && parts[0].$$is_regexp) { return parts[0]; } // cover the 2 arrays passed as arguments case is_first_part_array = parts[0].$$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?
105 106 107 |
# File 'opal/opal/corelib/regexp.rb', line 105 def ==(other) `other instanceof RegExp && self.toString() === other.toString()` end |
#===(string) ⇒ Object
109 110 111 |
# File 'opal/opal/corelib/regexp.rb', line 109 def ===(string) `#{match(Opal.coerce_to?(string, String, :to_str))} !== nil` end |
#=~(string) ⇒ Object
113 114 115 |
# File 'opal/opal/corelib/regexp.rb', line 113 def =~(string) match(string) && $~.begin(0) end |
#__marshal__(buffer) ⇒ Object
83 84 85 86 87 88 89 90 91 |
# File 'opal/opal/corelib/marshal/write_buffer.rb', line 83 def __marshal__(buffer) buffer.save_link(self) buffer.write_ivars_prefix(self) buffer.write_extends(self) buffer.write_user_class(Regexp, self) buffer.append('/') buffer.write_regexp(self) buffer.write_ivars_suffix(self) end |
#casefold? ⇒ Boolean
269 270 271 |
# File 'opal/opal/corelib/regexp.rb', line 269 def casefold? `self.ignoreCase` end |
#inspect ⇒ Object
119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 |
# File 'opal/opal/corelib/regexp.rb', line 119 def inspect # Use a regexp to extract the regular expression and the optional mode modifiers from the string. # In the regular expression, escape any front slash (not already escaped) with a backslash. %x{ var regexp_format = /^\/(.*)\/([^\/]*)$/; var value = self.toString(); var matches = regexp_format.exec(value); if (matches) { var regexp_pattern = matches[1]; var regexp_flags = matches[2]; var chars = regexp_pattern.split(''); var chars_length = chars.length; var char_escaped = false; var regexp_pattern_escaped = ''; for (var i = 0; i < chars_length; i++) { var current_char = chars[i]; if (!char_escaped && current_char == '/') { regexp_pattern_escaped = regexp_pattern_escaped.concat('\\'); } regexp_pattern_escaped = regexp_pattern_escaped.concat(current_char); if (current_char == '\\') { if (char_escaped) { // does not over escape char_escaped = false; } else { char_escaped = true; } } else { char_escaped = false; } } return '/' + regexp_pattern_escaped + '/' + regexp_flags; } else { return value; } } end |
#match(string, pos = undefined, &block) ⇒ Object
157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 |
# File 'opal/opal/corelib/regexp.rb', line 157 def match(string, pos = undefined, &block) %x{ if (self.uninitialized) { #{raise TypeError, 'uninitialized Regexp'} } if (pos === undefined) { if (string === nil) return #{$~ = nil}; var m = self.exec(#{Opal.coerce_to(string, String, :to_str)}); if (m) { #{$~ = MatchData.new(`self`, `m`)}; return block === nil ? #{$~} : #{yield $~}; } else { return #{$~ = nil}; } } 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}; } } // global RegExp maintains state, so not using self/this var md, re = Opal.global_regexp(self); while (true) { md = re.exec(string); if (md === null) { return #{$~ = nil}; } if (md.index >= pos) { #{$~ = MatchData.new(`re`, `md`)}; return block === nil ? #{$~} : #{yield $~}; } re.lastIndex = md.index + 1; } } end |
#match?(string, pos = undefined) ⇒ Boolean
206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 |
# File 'opal/opal/corelib/regexp.rb', line 206 def match?(string, pos = undefined) %x{ if (self.uninitialized) { #{raise TypeError, 'uninitialized Regexp'} } if (pos === undefined) { return string === nil ? false : self.test(#{Opal.coerce_to(string, String, :to_str)}); } pos = #{Opal.coerce_to(pos, Integer, :to_int)}; if (string === nil) { return false; } string = #{Opal.coerce_to(string, String, :to_str)}; if (pos < 0) { pos += string.length; if (pos < 0) { return false; } } // global RegExp maintains state, so not using self/this var md, re = Opal.global_regexp(self); md = re.exec(string); if (md === null || md.index < pos) { return false; } else { return true; } } end |
#options ⇒ Object
251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 |
# File 'opal/opal/corelib/regexp.rb', line 251 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
247 248 249 |
# File 'opal/opal/corelib/regexp.rb', line 247 def source `self.source` end |
#~ ⇒ Object
243 244 245 |
# File 'opal/opal/corelib/regexp.rb', line 243 def ~ self =~ $_ end |