Create short answer, multi-short answer and fill in the blank questions in myCourses

^

Use the caret ^ before a word to require students’ answers to begin with that word.

This code is useful for creating a boundary for students’ answers as the Regular Expression option doesn't set boundaries by default.

$

Use the dollar sign after a word to require students’ answers to end with that word.

This code is useful for creating a boundary for students’ answers as the Regular Expression option doesn't set boundaries by default.

^ $

Use the caret ^ before a word and the dollar sign after the word to require students to write an exact word without allowing any extra words, prefixes or suffixes

This code is useful for creating a boundary for students’ answers as the Regular Expression option doesn't set boundaries by default.

\b

Use \b at the beginning and/or end of a word to set word boundaries, but still allow students to enter other words with their answer.

Note: Don't use a forward slash / or capital letter B or this expression won't work.

This code is useful for requiring students’ answers to contain a certain key word without allowing any prefixes or suffixes.

|

Use the vertical bar | between two answers to require students’ to give at least one of those answers.

This code is useful for allowing students’ to use synonyms for a key word that you are looking for in their answers.

?

Use a question mark before a letter to make that letter optional.

This code is useful for allowing alternate spellings or optional suffixes or prefixes in students’ answers (see below).

()

Use parentheses ( ) around a set of characters combined with another symbol to only apply that symbol to those characters.

This code is useful for combining with | to allow students’ answers to be case insensitive as the Regular Expression option requires case sensitive answers by default.

() ?

Combine parentheses () with a question mark to make a suffix or prefix optional

This code is useful to allow for the presence or absence of a suffix or prefix.

[]

Use square brackets [ ] around a set of characters to require students’ answers to contain at least one those characters.

This code is useful for allowing alternate spellings.

.

Use a period in place of a letter to allow students to substitute that letter’s position for any character.

This code is useful for allowing alternate spellings.

*

Matches the preceding character or sub-expression zero or more times.

• equals {0,}

be* matches b or be or beeeeeeeeee

zo* matches z and zoo.

+

Matches the preceding character or sub-expression one or more times.

+ equals {1,}.

be+ matches be or bee but not b

?

When this character immediately follows any of the other quantifiers (*, +, ?, {n}, {n,}, {n,m}), the matching pattern is non-greedy. A non-greedy pattern matches as little of the searched string as possible, whereas the default greedy pattern matches as much of the searched string as possible.

In the string oooo, o+? matches a single o, while o+ matches all os.

()

Parentheses create a sub-string or item that you can apply meta-characters to.

a(bee)?t matches at or abeet but not abet

{n}

n is a non-negative integer. Matches exactly n times.

[0-9]{3} matches any three digits

o{2} doesn't match the o in Bob, but matches the two os in food.

b{4} matches bbbb

{n,}

n is a non-negative integer. Matches at least n times.

[0-9]{3,} matches any three or more digits

o{2,} doesn't match the "o" in "Bob" and matches all the o's in "foooood". 'o{1,}' is equivalent to 'o+'. 'o{0,}' is equivalent to 'o*'.

{n,m}

m and n are non-negative integers, where n <= m. Matches at least n and at most m times.

Note You can't put a space between the comma and the numbers.

[0-9]{3,5} matches any three, four, or five digits

"o{1,3}" matches the first three o's in "fooooood". 'o{0,1}' is equivalent to 'o?'.

c{2, 4} matches cc, ccc, cccc

.

Matches any single character except "\n".

To match any character including the '\n', use a pattern such as '[\s\S]'.

cat. matches catT and cat2 but not catty

(?!)

Makes the remainder of the regular expression case insensitive.

ca(?i)se matches caSE but not CASE

(pattern)

Matches pattern and captures the match. The captured match can be retrieved from the resulting Matches collection, using the SubMatches collection in VBScript or the $0$9 properties in JScript.

To match parentheses characters ( ), use '\(' or '\)'.

(jam){2} matches jamjam. First group matches jam.

(?:pattern)

Matches pattern but doesn't capture the match, that is, it is a non-capturing match that is not stored for possible later use.

This is useful for combining parts of a pattern with the "or" character (|).

'industr(?: y|ies) is a more economical expression than 'industry|industries'.

(?=pattern)

Positive lookahead matches the search string at any point where a string matching pattern begins. This is a non-capturing match, that is, the match is not captured for possible later use.

Lookaheads don't consume characters: after a match occurs, the search for the next match begins immediately following the last match, not after the characters that comprised the lookahead.

'Windows (?=95|98|NT|2000)' matches "Windows" in "Windows 2000" but not "Windows" in "Windows 3.1".

(?!pattern)

Negative lookahead matches the search string at any point where a string not matching pattern begins. This is a non-capturing match, that is, the match is not captured for possible later use.

Lookaheads don't consume characters, that is, after a match occurs, the search for the next match begins immediately following the last match, not after the characters that comprised the lookahead.

'Windows (?!95|98|NT|2000)' matches "Windows" in "Windows 3.1" but doesn't match "Windows" in "Windows 2000".

x|y

Matches x or y.

July (first|1st|1) will match July 1st but not July 2

'z|food' matches "z" or "food". '( z|f)ood' matches "zood" or "food".

[xyz]

A character set. Matches any one of the enclosed characters.

gr[ae]y matches gray or grey

'[abc]' matches the 'a' in "plain".

[^xyz]

A negative character set. Matches any character not enclosed.

1[^02] matches 13 or 11 but not 10 or 12

[^abc]' matches the 'p' in "plain".

[a-z]

A range of characters. Matches any character in the specified range.

[1-9] matches any single digit EXCEPT 0

'[a-z]' matches any lowercase alphabetic character in the range 'a' through 'z'.

[^a-z]

A negative range characters.

Matches any character not in the specified range.

'[^a-z]' matches any character not in the range 'a through 'z'

\b

Matches a word boundary: the position between a word and a space.

'er\b' matches the 'er' in "never" but not the 'er' in "verb".

\B

Matches a nonword boundary.

'er\B' matches the 'er' in "verb" but not the 'er' in "never".

\cx

Matches the control character indicated by x.

The value of x must be in the range of A-Z or a-z.

If not, c is assumed to be a literal 'c' character.

\cM matches a Control-M or carriage return character.

\d

Matches a digit character.

Equivalent to [0-9]

\D

Matches a non-digit character

Equivalent to [^0-9]

\f

Matches a form-feed character.

Equivalent to \x0c and \cL

\n

Matches a new-line character.

Equivalent to \x0a and \cJ

\r

Matches a carriage return character.

Equivalent to \x0d and \cM

\s

Matches any white space character including space, tab, form-feed, etc.

Equivalent to [ \f\n\r\t\v]

Can be combined in the same way as [\d\s], which matches a character that is a digit or whitespace.

\S

Matches any non-white space character.

Equivalent to [^ \f\n\r\t\v]

\t

Matches a tab character.

Equivalent to \x09 and \cI

\v

Matches a vertical tab character.

Equivalent to \x0b and \cK

\w

Matches any word character including underscore.

Equivalent to '[A-Za-z0-9_]'

\W

Matches any non-word character.

Equivalent to '[^A-Za-z0-9_]'

You should only use \D, \W and \S outside character classes.

\Z

Matches the end of the string the regular expression is applied to. Matches a position, but never matches before line breaks.

.\Z matches k in jol\hok

\xn

Matches n, where n is a hexadecimal escape value.

Hexadecimal escape values must be exactly two digits long.

Allows ASCII codes to be used in regular expressions.

'\x41' matches "A". '\x041' is equivalent to '\x04' & "1"

\num

Matches num, where num is a positive integer.

A reference back to captured matches.

'(.)\1' matches two consecutive identical characters

\n

Identifies either an octal escape value or a back-reference.

If \n is preceded by at least n captured sub-expressions, n is a back-reference.

Otherwise, n is an octal escape value if n is an octal digit (0-7).

“\11” and “\011” both match a tab character. “\0011” is the equivalent of “1”.

\nm

Identifies either an octal escape value or a back-reference.

If \nm is preceded by at least nm captured sub-expressions, nm is a back-reference.

If \nm is preceded by at least n captures, n is a back-reference followed by literal m.

If neither of the preceding conditions exists, \nm matches octal escape value nm when n and m are octal digits (0-7).

\nml

Matches octal escape value nml when n is an octal digit (0-3) and m and l are octal digits (0-7).

\un

Matches n, where n is a Unicode character expressed as four hexadecimal digits.

For example, \u00A9 matches the copyright symbol (©).