Boxes are the underlying representation of two-dimensional forms in notebooks.

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24
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2answers
1k views

How do I extract the contents of a selected cell as plain text?

My aim is to extract the contents of an Input cells as plain text. Ideally I would like to be able to select one or more Input cells and press a button which would then extract the text from these ...
18
votes
3answers
569 views

How can I get the unchanged Box form of an arbitrary expression?

One may observe that MakeBoxes does not give the actual Box form of various expressions: MakeBoxes[{1*^4, 000123, a*b c}] ...
18
votes
2answers
286 views

Understanding evaluation and typesetting

Background So, one could be surprised by the fact that: Hold @ Grid[{{1, 2}}] (*or*) Hold @ Graphics @ Disk[] This issue and methods of prevention are ...
15
votes
3answers
410 views

Notebook vs. DocumentNotebook; display a Notebook inline, like a DocumentNotebook

If you evaluate a DocumentNotebook[] expression in the front-end, it nicely displays inline, inside of an output cell in the current notebook: For my purposes, ...
15
votes
2answers
197 views

How do I use the third and fourth arguments of Parenthesize?

Parenthesize seems to do a good job with constructing boxes that need to be appropriately parenthesized: ...
14
votes
2answers
443 views

Tokenize Mathematica input in a simple way

Background Usually, I give detailed descriptions when I have a question which sometimes lead to that users don't write their answers because they maybe think their answer is too simple. Therefore, I ...
13
votes
2answers
569 views

How to embed an image into a string?

Note: The bug described in the post is in Mathematica 9, and has been fixed in 10.0. The documentation for String contains the following statements: Strings ...
12
votes
1answer
516 views

How to convert a notebook cell to a string retaining all formatting, colorization of identifiers etc?

I have an opened Mathematica notebook containing several cells. Suppose, I am interested in one of them -- it may contain a complete or incomplete expression (e.g. with syntax errors, highlighted ...
11
votes
1answer
174 views

Functions returns Command Completion Output

Is there a function that returns the output as if you invoked Command Completion. To help clarify I am looking for a function that returns the Cell Data as if you invoked ...
10
votes
1answer
286 views

How to change the font color of a variable in whole input cell

I want to track the occurrence of a particular variable in a code. So the idea is to change its color. Usually I do it in a crude way - convert the code into text and then use ...
10
votes
2answers
252 views

Backslash commands in strings?

I discovered by playing around that Text[DisplayForm@SubscriptBox["\[Lambda]", "k"]] produces the same result as ...
9
votes
1answer
170 views

How to get a list of all expressions in a notebook matching a certain pattern?

Suppose I have a Mathematica notebook saved to a certain location on disk. Given a pattern I need to get the list of all expressions matching this pattern that appear in input, output or print cells ...
9
votes
1answer
188 views

Is there a way to have a Tooltip for non-editable raster graphics produced by MakeBoxes?

I have a function which produces a large object I would like to hide. Formatting is of course an option but I'm hoping for something a little more meaningful using raster graphics and ...
9
votes
1answer
209 views

Pasting TemplateBox with a Dynamic argument

Ok, this is pretty specific... The objective is to use a TemplateBox to format something that is programatically inserted with ...
8
votes
1answer
443 views

How to change brackets in TraditionalForm output

I'm trying to improve TraditionalForm's output by using different brackets when there are more than one. For instance, instead of $u(v(r(b))))$, I'd like to get ...
8
votes
2answers
82 views

Reading Cells or Boxes expression by expression

Let's say we have a cell: (*newline*) (*newline*) Plot[ x, {x, 0, 1} ] (*newline*) Plot[x, {x, 0, 2}] How to read it expression by expression? ...
8
votes
1answer
81 views

On an existing notebook, how to transform all “double brackets” into “DoubleBracket”

Sometimes, having all double brackets [[...]] transformed into \\[LeftDoubleBracket] ... \\[RightDoubleBracket] can really ...
7
votes
3answers
171 views

How to avoid spaces between numbers when displaying TagBox(es)

The instruction : DisplayForm[RowBox[List[0,1,Superscript[2,3],Superscript[1,2],a]]] displays a gap between the first two items of the list but if one is ...
7
votes
1answer
119 views

ToExpression and ToBoxes aren't inverses of each other?

Applying ToExpression and ToBoxes repeatedly to Hold[1/1] gives many ...
7
votes
1answer
151 views

How to get string representation of boxes in v10.2?

In Mathematica versions up to 10.1 we could get string representation of given boxes by passing them to ToString with InputForm: ...
7
votes
2answers
268 views

Add semicolon at the end of code line programmatically

Suppose we have several lines of code in a cell: a b; Module[{}, c d] e How can we wrap them in a CompoundExpression i.e. ...
7
votes
1answer
95 views

How to convert arbitrary raw boxes directly into String?

This question is motivated by the recent question about searching inside of the NB files. According to the Documentation, ToString expects a high-level WL ...
7
votes
1answer
150 views

Converting string representation of boxes into explicit boxes [duplicate]

It is very easy and convenient to write textual labels as Strings in the WYSIWYG mode. For example, I define a short form describing a linear model: ...
7
votes
1answer
111 views

Ways to obtain a BoxObject

Is there any way to get a BoxObject, except with EvaluationBox or ParentBox? So usually one ...
6
votes
2answers
979 views

Formatted text in a Dynamic or Manipulate control

I am using a Manipulate control to show different calculations for the same user-specified parameters. I would like to show the results for the calculation the ...
6
votes
2answers
189 views

How can you resize all the images in a notebook section?

I've pasted a large number of photos and they are too big which makes scrolling hard. Is there a way to automatically have Mathematica size them to 10% or something reasonable without have to click on ...
6
votes
1answer
280 views

On Reverting Code that Mma Switches to Raw Input Form Back to Standard Form

I experienced a similar issue to what is described in this post while editing formatted usage messages (that contained italics) in the declaration section of a package that I'm developing in the ...
6
votes
1answer
128 views

Why only up to two \[Prime] superscripts are interpreted as derivatives?

I noticed that only up to two \[Prime] superscripts are interpreted as derivatives. Is there a reason for this restriction? Is it documented? ...
6
votes
2answers
158 views

Prevent front-end from reformatting long fractions while editing

I am editing an expression containing wide fractions (typeset with fraction boxes): But if, while editing the equation, the fraction exceeds some threshold (seems to be approximately the window ...
6
votes
1answer
206 views

Extracting text from cells, preserving non-ASCII characters

Consider the following setup, based on this answer by WReach: ...
5
votes
2answers
137 views

Why does MakeBoxes mess up RowBox ordering?

When I use RowBox for MakeBoxes the order of the elements is changed for TraditionalForm, if there is a plus (+) in the list of elements. ...
5
votes
2answers
181 views

Customizing display of partial differential equations

I am manipulating partial differential equations symbolically, and would like to get the easily readable form $\rho \frac{\partial v}{\partial t}$, leaving variables implicit. Based on suggestions ...
5
votes
2answers
100 views

Removing spurious parenthesis in `TraditionalForm`

I don't understand the following behavior (in v 9.0.1) of TraditionalForm regarding insertion of parenthesis. Let us start with the a definition for ...
5
votes
2answers
158 views

How do I mimic the functionality of “<>”?

The Cell expression for: <> is Cell[BoxData["<>"], "Input"] However similar expressions are parsed into ...
5
votes
2answers
111 views

How to robustly apply ToBoxes to a Dynamic expression?

Inserting a Dynamic object in a boxform expression messes up syntax colouring. See the following example. where the variable ...
5
votes
1answer
653 views

How to extract a possible closed form from WolframAlpha[] output

To find a possible closed form of a number, I can use the function WolframAlpha["6.38905609893065", IncludePods -> "PossibleClosedForm"] It returns a result ...
5
votes
1answer
78 views

What are “\<” and “\>” delimiters in box expressions?

If I enter a string (say, "abc") in a cell, and then switch to box representation (Shift+Ctrl+E or menu item ...
5
votes
1answer
369 views

How to convert an image to a compressed string representation equivalent to one copied to clipboard by `CopyToClipboard[image]`?

In my recent question I asked How to embed an image into a string? The suggested solution was ...
5
votes
0answers
120 views

Same input,different result? [duplicate]

Using this code,you can see,same input, but the output are different. So weird! If I copy this code here, it outputs normally. So what's the problem? Ps:I use ...
4
votes
2answers
166 views

ToBoxes Respect Spaces Code

Is there a way to force either ToBoxes or MakeBoxes to respect the spacing that occurs in the code? For example is there a way ...
4
votes
1answer
85 views

How can I define MakeBoxes for Inactive forms of user-defined heads?

Here I define a MakeBoxes for Times: ...
4
votes
1answer
154 views

Unexpected result when reading Cell with comment-lines by NotebookRead

Bug introduced in 9.0 and fixed in 9.0.1 When considering this question about re-formatting Cell (also this one), I encountered an issue which confuses me. I'll ...
4
votes
1answer
87 views

Combination of CellPrint and PrintTemporary, or DisplayForm for Cells

I'm programmatically generating some formatted output that generates a cell in the form of a Cell[] expression. For instance, the output might be ...
4
votes
0answers
88 views

Using an external Pattern breaks Format

I noted while writing this answer that using an external Pattern on Format doesn't work: ...
3
votes
2answers
177 views

Subscript and Part: What's going on in this example?

Example I came across the following simple example from A Beginner's Guide to Mathematica, by McMahon and Topa, which I believe was written circa version 5.2. (FWIW, I'm using v9.) ...
3
votes
1answer
107 views

Vertical “fractions” with more than 2 parts

Standard FractionBox syntax allows only 2 arguments and creates 2-part fraction for numerator and denominator. Is it possible to draw similar construction, but ...
3
votes
1answer
62 views

Splitting formatted output to multiple lines in a controlled fashion

Let's consider a slightly complicated expression in TraditionalForm: ...
3
votes
2answers
447 views

FrameStyle in Inset with Framed expression

I am creating some plots that use FrameStyle->AbsoluteThickness@5 and PlotStyle->AbsoluteThickness@0.5. In my plots' ...
3
votes
1answer
24 views

Definition of TraditionalForm

This is a followup of "How to check for Mathematica’s definition of XY?, a question by uli on how to access the definition of a built-in symbol. That question focused on ...
3
votes
1answer
36 views

Custom MakeBoxes are issued also for different pattern expressions

Suppose I want to display some expression, say foo[p1_,p2_], as a point in a circle. I can achieve this using MakeBoxes, like ...