All Questions
Tagged with string-manipulation programming
26 questions
10
votes
1
answer
216
views
How can I get rid of Background from a String?
For explanatory purposes I have marked parts of a string with different backgrounds.
But this string is part of some Mathematica expression, which processed. My program worked fine before I added the ...
- 2,848
5
votes
2
answers
277
views
Automated generation of homework questions for line problems
I try to help my children in their subjects, I built a small code so that it has as output questions regarding the equation of the line, but I have not been able to modify it so that the result comes ...
- 273
2
votes
2
answers
157
views
How to program a situation like the following in mathematics and generalize the process to other configurations?
Distribute the numbers from 1 to 10(view image) so that the sum of each row and each column is the same and
a) the maximum possible
b) the minimum possible
(I put it from 1 to 10 for ease)
I know it ...
- 500
5
votes
1
answer
152
views
Jaro distance in MMA
I'm trying to program Jaro distance as requested by this page I've done the following code that works well for the next two pairs ("MARTHA", "MARHTA") and ("DIXON", "DICKSONX") but when I try with ("...
- 1,299
10
votes
1
answer
2k
views
How to export strings as pure ASCII?
The "PrintableASCII" characters set consists of 97 characters, including space (\[RawSpace]) and two control characters: the ...
- 62.3k
0
votes
1
answer
125
views
How to fix this issue with storing an expression as a String and returning it with ToExpression
( Update: Note the "." in the expression, this is most likely what causes the problem. )**
Starting point of my question is the following code, which works as expected:
...
- 9,687
4
votes
2
answers
203
views
What is the Mathematica string expression to extract the innertext of an HTML element?
Consider the following example of text extraction.
...
- 9,687
2
votes
1
answer
252
views
Please explain some unexpected behavior of StringJoin [closed]
Consider the following command:
...
- 9,687
1
vote
1
answer
107
views
How to iterate over an "Input" function?
I wasn't sure what to name this title, I will explain this code just incase some people actually aren't running it on Mathematica..This code will ask you "what is #1 * #2", where #1 and #2 are random ...
- 481
2
votes
0
answers
118
views
How to implement a regular grammar in Mathematica 10.0 onwards?
I would like to see a new answer to this question: How to implement a regular grammar? considering the introduction of GrammarRules in 10.0 ( 2014 ).
( I don't know if this question satisfies the ...
- 9,687
2
votes
1
answer
102
views
What is the best approach in converting strings from web imports back to their original types?
Consider the following list
...
- 9,687
17
votes
2
answers
1k
views
How to parse a clojure expression?
Clojure is a lisp-like language that runs on JVM and in Javascript. I just started learning it and I'm building a simple parser with Mathematica to understand and visualize it.
Like other lisps every ...
- 31.8k
4
votes
1
answer
810
views
How do I use StringReplace to replace repeated characters?
Suppose I have
str = "dededekmkmkmvkfjdedemkvmlvdedekfmmdedededemkmkde"
And I want to replace the repeated "de"s to one and produce (in a real example, the "de"...
- 2,745
0
votes
1
answer
941
views
How to implement the for loop to replace text strings or texts?
I wonder define a bunch variables named like $X_1$, $X_2$, $...$, $X_n$. Is there some smart way to declare them instead of by pure typing. One trick I can image is to use the for loop,...
user10568
1
vote
1
answer
79
views
How to reference StringExpression named parts from a package without full Context path?
I have a long StringExpression in a package returned by a function. There are some named parts in the expression that I would like to reference when I use the ...
- 43.2k
2
votes
0
answers
153
views
How to efficiently find parts of a string with beginning and ending specified?
I'm trying to find specific URL addresses from a html document. The addresses can be found between the strings "href=\"" and "\" class=\"listing". The problem is not including strings like this: "href=...
- 1,897
0
votes
1
answer
84
views
Data file organized in strings
I am working in a data set : The original question, They are strings of thousands stars,and each one contains a lot of parameters, and the following item is called identifies, they are the names (...
- 861
0
votes
2
answers
214
views
Exctrating data information from a file.txt
I really did previous long search in the site and I couldn't find any answer that might help me. So I am asking it.
I have the following data set, https://onedrive.live.com/redir?resid=...
- 861
14
votes
1
answer
647
views
CSS Selectors for Symbolic XML
Symbolic XML is a convenient way of managing XML in Mathematica, at least for casual use or small tasks. Here and elsewhere you can find examples of XML handling in Mathematica, including XSLT/XPath ...
- 793
12
votes
5
answers
4k
views
What is the fastest way to extract a substring from a huge string?
I develop an algorithm to find the most common substrings of a given length n up to a certain distance l in front of a pattern p in a huge sequence S. E.g. I want to find the most common hexamers (...
- 3,328
1
vote
3
answers
588
views
Replace with position and order number
question
conversion1 : Convert "[AA]AB[AA]BB[AA]B[AA]CCC" to "[A1A2]A3B1[A4A5]B2B3[A6A7]B4[A8A9]CCC"
conversion2 : Convert <...
- 8,649
4
votes
2
answers
2k
views
13
votes
4
answers
521
views
Unencoding encoded URLs in a function
Is there a built-in function for decoding encoded URLs in Mathematica?
I would like to convert an encoded URL, for example
...
- 649
3
votes
3
answers
375
views
How do I construct a pure function to extract data fields from records that are strings?
How can I get from datasegment format to the finalsegment format with a pure function? The data fields are fixed length. There ...
6
votes
2
answers
3k
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"
I ...
- 775
19
votes
2
answers
2k
views
Lexicographic ordering of strings in Mathematica
I recently realized that Mathematica seems incapable of comparing strings in the "normal" expected lexicographic order. Indeed, for some simulations, I need to process text directly, without fiddling ...
- 433