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A regular expression (shortened as regex or regexp), [1] ... For example, [A-Z] could stand for any uppercase letter in the English alphabet, and \ d could mean any ...
Instead of doing a basic indexed search on keywords, you can perform a regex search, which bypasses the index.A regex search scans the text of each page on Wikipedia in real time, character by character, to find pages that match a specific sequence or pattern of characters.
A change in case from lowercase to uppercase is a word boundary in an alphabetic word. The word boundary between such numeric portions and an alphabetic portions may include grey-space or not, but a phrase search turns off portioning , because it is an "exact phrase search", the words in the phrase matching only alphanumeric words delimited by ...
Old English did not always make a distinction between uppercase and lowercase, and at best had embossed or decorated letters indicating sections. Middle English capitalization in manuscripts remained haphazard, and was often done for visual aesthetics more than grammar; in poetry, the first letter of each line of verse is often capitalized.
Greed, in regular expression context, describes the number of characters which will be matched (often also stated as "consumed") by a variable length portion of a regular expression – a token or group followed by a quantifier, which specifies a number (or range of numbers) of tokens. If the portion of the regular expression is "greedy", it ...
This is the "regular expression" (or regexp, or regex). Its metacharacters can represent multiple possibilities for a character position or a range of character positions within a page, using metacharacters for truth logic, grouping, counting, and modifying the characters to be found.
A somewhat longer but more explicit extended right-regular grammar G for the same regular expression is given by N = {S, A, B, C}, Σ = {a, b, c}, where P consists of the following rules: S → A A → aA A → B B → bC C → ε C → cC...where each uppercase letter corresponds to phrases starting at the next position in the regular expression.
The capital letter "A" in the Latin alphabet, followed by its lowercase equivalent, in sans serif and serif typefaces respectively. Capitalization (American spelling; also British spelling in Oxford) or capitalisation (Commonwealth English; all other meanings) is writing a word with its first letter as a capital letter (uppercase letter) and the remaining letters in lower case, in writing ...