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23
votes
4answers
790 views
What is the fastest way to count square-free words?
Background
A word is a string of letters in an alphabet. A square-free word has no adjacent repeating substring. For example, (in the ternary alphabet of {0,1,2}) the words 00, 012121, and 0212012021 ...
14
votes
2answers
195 views
Haiku Extractor
Inspired by the cool Tumblr Haiku Times that searches for accidental haiku in New York Times articles, I tried my hand at implementing such a search in Mathematica for my own text samples.
I'm still ...
8
votes
3answers
177 views
balanced Shortest[] and string-patterns
The pattern Shortest["A"~~__~~"B"] is oriented : It assumes the text is read from links to right and it takes the text between the first "A" and the next "B".
Any ...
6
votes
3answers
261 views
Specifying string patterns in DeleteCases
It seems that DeleteCases is not compatible with string patterns, at least directly (see, for example, this question). Is this true? If so, why is this the case? ...
4
votes
2answers
86 views
How can I know if a pattern corresponds to a string pattern?
What would be the best way to detect if a pattern corresponds to a string pattern ?
An invalid string pattern p would lead to an error in ...
4
votes
2answers
149 views
Split string into sub-strings of length n [duplicate]
Possible Duplicate:
Partition string into chunks
How can I split a string into sub strings of length n? For example I have a string
"ABCDEabcde1234"
...
4
votes
1answer
46 views
3
votes
3answers
88 views
Using NumberString, DigitCharacter, or a similar directive to find all string representations of integers in a string
I have a text file containing many, many lines of text like test in the following:
...
3
votes
5answers
219 views
How to extract strings from the list with an additional condition on previous elements?
There are a long list of strings $s$ and two lists of substrings $s1$ and $s2$. I want to take all elements of $s$ which contain a substring from $s2$ and such that before it on no more than $n$ ...
1
vote
2answers
106 views
Finding strings in Web Code [duplicate]
I haven't found an answer that solves my problem, although I think it's actually a simple one. It seems hard to me because I don't have a lot of experience with string patterns.
I have a Web Code ...
