Assertion: modifier | /r/HasProperty | set
Facets:
Source sentences:
text: If this modifier is set, letters in the pattern match both upper and lower case letters.
text: When this modifier is set, the "start of line" and "end of line" constructs match immediately following or immediately before any newline in the subject string, respectively, as well as at the very start and end.
text: If this modifier is set, a dot metacharacter in the pattern matches all characters, including newlines.
text: If this modifier is set, whitespace data characters in the pattern are totally ignored except when escaped or inside a character class, and characters between an unescaped # outside a character class and the next newline character, inclusive, are also ignored.
text: If this modifier is set, the pattern is forced to be "anchored", that is, it is constrained to match only at the start of the string which is being searched (the "subject string").
text: If this modifier is set, a dollar metacharacter in the pattern matches only at the end of the subject string.
text: This modifier is ignored if m modifier is set.
text: If this modifier is set, then this extra analysis is performed.