Questions on the manipulation of String objects in Mathematica, and the functions used for these manipulations.

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10
votes
4answers
493 views

How does string interpolation work in Mathematica

I've noticed that Mathematica 8 seems to have some kind of string interpolation feature, but I couldn't find any documentation on it and I can't figure out how it works. For example, if I enter ...
10
votes
2answers
226 views

What's a robust way to insert another extension into a filename?

I'd like to add an extension to a filename before the file extension, otherwise leaving the given filename the same. In particular, absolute filenames should stay absolute, and relative filenames ...
10
votes
3answers
266 views

balanced Shortest[] and string-patterns

The pattern Shortest["A"~~__~~"B"] is oriented : It assumes the text is read from left to right and it takes the text between the first "A" and the next "B". Any ...
10
votes
2answers
300 views

Mathematica Typing Effect

Here is a Typing Effect in javascript. I could only implement a very simple one: ...
10
votes
2answers
163 views

Unexpected result from StringReplace

The following works as expected. StringReplace["xxxyxz", "x" ~~ _ -> "ww"] "wwwwww" And so does this. ...
10
votes
1answer
272 views

StringReplace, ReplaceAll and Rule interact in a bizarre way

I have the following pair of things: ClearAll[foo, labeledFoo]; labeledFoo = {"FooBarBazQuux", foo}; This works like you'd expect: ...
10
votes
1answer
812 views

Mathematica equivalent of regex '\w{2,3}'

It beats me to write the Mathematica pattern equivalent to the regex: \w{2,3} Any ideas?
10
votes
2answers
714 views

How to get string representation (like repr in Python)

I have a string variable. I want to obtain another string which contains the representation of the string variable content itself. s = "a \n b" I need to get a ...
10
votes
2answers
139 views

Comparing natural language strings

I have a large spreadsheet with thousands of rows/columns of text. Some are saying essentially the same thing but in different ways. When you enter a natural language question Wolfram Alpha makes a ...
9
votes
5answers
820 views

convert long string to integer list

at first, i would like to thank all the people here. i'm working with mathematica for half a year now and always found great advice and tricks. now, i came up with a problem i couldn't find a ...
9
votes
2answers
258 views

Behavior of ImportString in Mathematica

I tried the following commands ...
9
votes
2answers
2k views

Convert a string to hex number?

How can I convert a string containing a hex number such as "6b" to a hex digit that mathematica can use to do math with? I have tried using ...
9
votes
2answers
476 views

Keeping Quotation Marks in Output

I am running into the following seemingly simple problem. I have this code: testphrase="i love you"; input=ToLowerCase[StringSplit[testphrase, Whitespace]] It ...
9
votes
2answers
160 views

Convert recursive RegularExpression to StringExpression?

Consider the following expression for matching balanced brackets: ...
9
votes
3answers
162 views

How do I make a string literal without having to escape backslashes?

I'd like to say something like: foo = @"\abc\def\ghi" instead of foo = "\\abc\\def\\ghi" How do I do this? This would ...
9
votes
1answer
133 views

Named string patterns in Alternatives, why does it depend on order?

When using the same name for part of patterns inside Alternatives how come it behaves differently for strings than in normal patterns? ...
9
votes
1answer
255 views

Creating a version of SequenceAlignment that accepts patterns

SequenceAlignment seems like a function that is not (yet?) fully integrated into Mathematica. I want a function that accepts general patterns instead. I ...
8
votes
3answers
399 views

How to parse information contained in a file name

I have a set of files containing my data, and the file-names contain relevant information that I would like to extract. What I have is: ...
8
votes
1answer
119 views

Naming a pattern changes outcome in StringCases[]

s = "1 2 "; StringCases[s, (n : NumberString ~~ " ") .. ] StringCases[s, (NumberString ~~ " ") .. ] yields ...
8
votes
1answer
153 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 ...
8
votes
2answers
213 views

Using Except with strings

Suppose that I have the following sample list, called list: list = {"bBb", "aAa", "aaa"}; Now suppose I want to select the ...
8
votes
3answers
214 views

Mathematica equivalent to Python long raw strings? handling escape characters in packages

I'd like to write the following in plain text .m file in Mathematica, without having to double escape all the Latex commands: ...
8
votes
2answers
554 views

A femme is a wife is a Frau

As can be seen from LanguageData["Properties"] // Multicolumn Mathematica's translation capabilities seem to be very limited. It can translate month names, ...
7
votes
3answers
329 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 ...
7
votes
5answers
405 views

Splitting strings at lower case characters and numbers

I'm trying to split the strings of chemicals into their elements and numbers. See this example "Fe3O4" will be split into ...
7
votes
5answers
262 views

String replacement question

If you have a string string="<ALK>ene" and I have a list alk={"meth", "eth", "prop", "but", "pent"}, what function ...
7
votes
3answers
631 views

Creating word histograms from lists of strings

Consider the following: ...
7
votes
4answers
439 views

Strange answer from StringReplace

I have a list of strings and I would check if there is an empty string element, that's "", because I need to replace it with a "0". I try the following ...
7
votes
5answers
203 views

Generate list of strings from a list of assigned variables

How do I generate a list of strings from a list of assigned variables? Eg. Convert ...
7
votes
1answer
195 views

Understanding `Paste` and how to get a string from the Clipboard to use with `ImportString`

Trying to work on this question I got distracted by my first naive attempt of copying the data and then typing dat = ImportString[Paste[], "Table"] ...
7
votes
3answers
180 views

Converting StringJoin to StringForm inside Hold

Let's say I have a piece of code: Hold[{code1, "asdad " <> ToString[testa] <> " adsd " <> ToString[testb], code2}] (*MWE ofc*) ...
7
votes
1answer
3k views

What pattern will match accented letters in a regular expression?

How should I modify the following such that the accented letter É is matched and the expression returns True? ...
7
votes
2answers
197 views
7
votes
3answers
233 views

How to turn a set of strings which represent a list into a 2D list

I have a set of data read in from a larger CSV file. I want it to match the format I have from another analysis. It is structured as a series of strings with letters and numbers Here it is copy-pasted ...
7
votes
1answer
145 views

LetterCharacter for Cyrillic symbols

Why does the code StringMatchQ["ы", LetterCharacter] return False? Probably because: ...
7
votes
1answer
159 views

Unicode beyond Basic Multilingual Plane

String manipulation takes a dive when characters beyond \:FFFF are used e.g. Mathematical Alphanumeric Symbols. The characters display fine but doing string ...
7
votes
2answers
330 views

Revert FullForm-ed text to prettyprinted

Sometimes strings in a notebook/package file end up garbled due to some unknown/unintentional conversion of the expression/cell/notebook. I could not find a way to revert such unreadable text to its ...
6
votes
4answers
293 views

Where can I take a pool of words from?

Dear Community members, I am thinking about an interactive machine to teach a school child to write difficult words correctly. As a first step I need a collection of words. I will select a pool of ...
6
votes
6answers
2k views

Convert a string into a list of numbers

I got the following problem I don't know how to solve or if it's at all possible to solve(I'm quite new to Mathematica and don't have an IT background, so please explain slowly if possible:)) I'm ...
6
votes
3answers
333 views

Finding all sublists or substrings of a given list/string

Given a list or string, how do I get a list of all (contiguous) sublists/substrings? The order is not important. Example for lists: ...
6
votes
2answers
508 views

How to overload System`StringJoin to automatically use ToString on arguments?

I am using an overloaded version of the StringJoin function since years now, without any problem, as I've invested a lot of time and effort earlier to make its ...
6
votes
3answers
304 views

String matching balanced pairs of braces

I am trying to extract from a string in Mathematica all instances of \newcommand{ABC}{DEF} Where ABC and ...
6
votes
4answers
689 views

Caesar's cipher

How can Caesar cipher be implemented? I want to use StringReplace but I don't know how to write the replacement rule to replace the characters with, say, the ...
6
votes
4answers
306 views

Is there a more Mathematica-y way to label these plots?

I am studying an infinite square well in the context of quantum mechanics. ...
6
votes
2answers
163 views

Why is StringMatchQ[“IP1”, “IP”] returning False?

Maybe there is a knot in my head, but I would expect that StringMatchQ["IP1", "IP"] should return True (which it does not) ...
6
votes
3answers
1k views

print the name of the variable in a list without evaluation

a := az + 1 b := bz + 5 list := {a, b} I'd like mathematica to print a = az + 1 b = bz + 5 so basically it needs to first ...
6
votes
5answers
216 views
6
votes
3answers
212 views

Problem with WordBoundary in string patterns

I am trying to extract from a string all words that end with "-man", but the problem is that WordBoundary does not seem to work as it returns whole string ignoring ...
6
votes
2answers
203 views

How to Clear variables represented as a list of strings?

Say I have a string list called fullpara fullpara={"width", "long", "line", "distance"} And there are corresponding variables ...
6
votes
3answers
319 views

Importing and manipulating strings - time data

I have a list of time durations, which are strings of the form: "hh:mm:ss". Here's a sample for you to play with: ...