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TeXShop Changes 3.88

Version 3.88 has the following changes:

TeXShop Changes 3.87

The bug fix for Bibtex allowing citation keys with spaces turns out to be a bad idea. Bibtex documentation states that citation keys cannot have spaces, and the fix broke other user's Bibtex interaction. The fix has been removed. There are no other changes.

TeXShop Changes 3.86

TeXShop 3.86 fixes several minor issues reported by users since the release of 3.85. Most of these issues have been present for a long time.

TeXShop Changes 3.85

TeXShop 3.82 introduced "useTabs", an easy way to add tabs to projects with a root file and chapter files. TeXShop 3.84 added "useTabsWithFiles", a second method of adding tabs requiring a little more work for a lot more flexibility. Unhappily, the code for this second method broke the first method.


TeXShop 3.85 again activates both methods.

In High Sierra, tabs can be given special short names in place of the names of the files they represent. As the number of tabs increases, this becomes more and more useful. The second method of adding tabs has always supported these shorter names. A similar technique is provided in TeXShop 3.85 for the first method.

The magic line containing "useTabs" can be followed by an optional list of short names as in the example below:

% !TEX useTabs (one, two, , short name, five)
This additional parameter must be on the same line as "useTabs", but notice that single lines can wrap in the editor without adding a line feed. The short names are listed inside a pair of round brackets, and are separated by commas. White space at the beginning and end of a short name will be ignored, but a short name can contain more than one word, as in the above example. If the space between two commas is blank, the original name will be used for that file. If the list has fewer names than the number of tabs, original names will be used for the remaining tabs. If the list is longer than the number of tabs, names at the end will be ignored.

Version 3.85 runs on the original list of supported systems, including High Sierra. Tabs require Sierra and higher, and short names require High Sierra and higher. Short names can be input on Sierra, but they will be ignored on that system.

TeXShop 3.85 was compiled by XCode 8.3.3 running on Sierra. It runs fine on High Sierra, but the "short tab names" feature doesn't work there because XCode doesn't have API's for High Sierra. I tried compiling TeXShop on High Sierra using the beta copy of XCode provided for that system. The code worked fine in High Sierra and short tab names worked. But unfortunately, the resulting code had minor problems running on Sierra. The High Sierra version is available at the TeXShop web site at http://pages.uoregon.edu/koch/texshop/texshop.html.

The TeXShop 3.85 source code has one line commented out which must be activated to get short tab names on High Sierra. If you want to compile yourself on High Sierra, search the source file TSDocument.m for "High Sierra" and uncomment the following line of code

windowToTab.tab.title = self.includeFileShortNames[i];

TeXShop Changes 3.84

When version 3.82 of TeXShop was released, I said that it would be the final version of TeXShop until late fall. But bugs were discovered, so version 3.83 was released.

These versions of TeXShop created only half of the promised support for tabs, and I found that I couldn't stop in the middle. Version 3.84 completes tab support, and should finally be the last release until late fall. Note that tabs require Sierra or higher because Apple first added tab support in that version of macOS.

Tabs are not appropriate for all TeX projects. They work best on books and large articles with from five to fifteen chapters or divisions, each introduced with an \include command. Some authors prefer to divide their project into many more pieces, perhaps one file per section, and then associating a tab with each file would product unmanageably many tabs.

TeXShop has two mechanisms to enhance Sierra tab support. The first is very simple. Within the top 20 lines of the root file, add the line

% !TEX useTabs
When this command is given, TeXShop itself searches for \include files to associate with tabs; the mechanism should cover perhaps 70 percent of cases.

The second mechanism gives the user considerably more control over the tabs. Within the top 20 lines of the root file, add the line

% !TEX useTabsWithFiles
Below that, within the top 50 lines of the root file, add a line for each tab
% !TEX tabbedFile{chapter1/Introduction.tex} (One)
In this command, a path to the file shown in the tab is given in curly brackets. In the example, the path starts from the folder containing the project root file, but see more details below. Notice that the file extension must be included. That is because the second mechanism allows pdf, tiff, jpg, log, aux, and other files as tabs. Authors sometimes give source files long descriptive names, which makes the tab titles very long. The final piece of the above line in round brackets is optional, and gives a shorter tab name.

The optional short name will only be recognized in High Sierra, because it requires additional Apple API first made available there. Feel free to use the term in Sierra; it will cause no harm there, but will be ignored.

Finally, we list some technical details. The first mechanism searches for \include lines after \begin{document} in the body of the root file. It is common to list files without extensions, and in that case TeXShop adds the extension ".tex" when creating the tab. In the second mechanism, however, TeXShop will not change the extension given by the user, or add a missing extension, because tab files can have unusual types so the extensions provide crucial information. Both methods create at most 20 tabs and ignore lines which might create more of them. The "useTabs" mechanism only works if the root file has at most 20,000 characters, to avoid very long searches for \include lines in gigantic root files.

If a window with tabs is left open when TeXShop is closed, then the next time TeXShop is opened, macOS opens the window and recreates the tabs. The new tab mechanism recognizes this behavior and lets macOS do the job without itself creating tabs. However, macOS does not understand tabs made from pdf files, graphic files, and a few others, so some of the tabs may be missing. It is easy to get these tabs back. Close the document and then reopen it. This forces TeXShop to recreate the tabs, and then all tabs come back. Or open the missing files yourself and drag their windows to missing tabs. (This macOS behavior is not a bug; other features of TeXShop depend on it. We cannot have everything.)

Finally, a word about the path information between the curly brackets in the "tabbedFile" magic lines. Three types of path strings are recognized. The first are strings that start in the location of the root file. Examples include {chapter1.tex} and {Chapter1/Introduction.tex}. Longer strings of directories are allowed. When it sees this sort of string, TeXShop prepends the full path to the folder containing the root file.

Another possibility is a path starting at your home directory, like {~/Galois/Equations.tex}. Here ~ denotes the home directory, so this file is probably not in the project directory.

Finally, TeXShop recognizes full paths like {/Users/koch/Galois/Equations.tex}.

If you use still more Unix conventions, they may or may not work. No guarantees. Tests suggest that spaces are allowed in both directory names and file names, but I'm loathe to recommend them.

There are a few tricky points. The Finder often lists TeX source files without the ".tex" extension, but this extension is just hidden, not absent. It must be written as part of the tab file path. (During testing, I was confused by this point several times).

When TeXShop is asked to create a tab, it opens the file exactly as if a user had dragged the file icon to TeXShop and dropped it there. Then the window described in the tab is "tabbed." This creates a few surprising cases that look like bugs but aren't. For example, then TeXShop opens a dvi file, it actually converts the file to pdf using dvips and Ghostscript, and then opens the pdf file. So tabbing a dvi file will give a pdf file as a tab.

Here is another surprising case. Suppose that you are working on a project named "Galois.tex" and you earlier created a project named "Abel.tex". When you open Galois.tex, you want Abel.tex as a tab so you can refer to that source file as you write Galois. But if you drop the icon for Galois.tex on TeXShop, both Galois.tex and Galois.pdf will open in separate windows. Similarly dropping the icon for Abel.tex on TeXShop will open Abel.tex and Abel.pdf. After tabbing occurs, you'll have a tabbed window containing Galois.tex and Abel.tex, and you'll have Galois.pdf in a separate window. But you'll also have Abel.pdf in another window. The existence of this extra pdf file looks like a bug, but isn't.

This release of TeXShop was compiled by XCode 8.3.3 running on Sierra. It runs fine on High Sierra, but the "short tab names" feature doesn't work there because XCode doesn't have API's for High Sierra. I tried compiling TeXShop on High Sierra using the beta copy of XCode provided for that system. The code worked fine in High Sierra and short tab names worked. But unfortunately, the resulting code had minor problems running on Sierra. No doubt these will be fixed before the release of High Sierra.

Consequently, if you are beta testing High Sierra and want to use short tab names, you'll need to search the source file TSDocument.m for "High Sierra" and uncomment the following line of code

windowToTab.tab.title = self.includeFileShortNames[i];
Then compile on High Sierra.

TeXShop Changes 3.83

Murray Eisenberg discovered problems with the new "useTabs" feature and sent me his full source code to debug. This proved extremely useful! The problems I foresaw with this feature have not materialized, but Eisenberg's source revealed more elementary and embarrassing bugs, now fixed.

The only files which receive tabs are those loaded by \include{myfile} statements after \begin{document} in the root file. Here "myfile" can be a file name, partial path, or full path. Murray's document loaded chapters in a more complicated way, but was easily modified to meet this condition. It would be easy to extend TeXShop so an alternate method could also be used, in which the user lists files to be tabbed using "% !TEX fileForTab = " statements. This technique could assign files to tabs even if they aren't part of the source (for instances, tables of symbols), and could specifiy which chapters are tabbed for books with enormously many chapters. Write if you want this feature, which however will not appear until fall.

It is slightly possible that version 3.82 broke UTF-8 encoding in Japan and other far Eastern countries; the evidence is iffy at the moment. But if that happened, it is fixed in 3.83.

TeXShop Changes 3.82

After the release of MacTeX-2017 in May, I have been spending time on TeXShop dealing with bugs by other programmers which crashed TeXShop --- and TeXShop bugs which were my fault. Now I want to turn to new summer projects, so this should be the last TeXShop update until late fall. I'll return earlier only if significant new bugs are discovered.

This final summer release contains two features, one available only on Sierra and High Sierra, and the other only on High Sierra. We start with the High Sierra feature, which comes automatically to Cocoa applications without any new code by me.

TeXShop Changes 3.81

Version 3.81 fixes a small number of bugs in version 3.80:

TeXShop Changes 3.78 - 3.80

Versions 3.78 and 3.79 were never released. Version 3.80 has the following changes:

In addition to these changes, a small number of users ran into other issues running on macOS Sierra. Most users have had no trouble with Sierra, and find that it fixes a number of problems in the previous two or three systems, so these problems are rare:

First, a few users included the pstricks package in the header of their document, but used no features of this package and typeset with pdflatex. Usually pstricks requires TeX + DVI mode, so including it in the header of a pdflatex document is an error. But in Sierra, typesetting such a document with pdflatex created a pdf file that crashed PDFKit, Apple's pdf rendering code, and thus crashed TeXShop. This bug is fixed in High Sierra.

Second, some users writing beamer documents would typeset and scroll their document in TeXShop. A particular image in the middle of the document would create a glitch, and some following pages would be blank. Scrolling back up would give additional blank pages, even though they were correctly rendered earlier in the game. Eventually the document could crash TeXShop. This problem is caused by a PDFKit bug, and is fixed by Apple in High Sierra.

But in the meantime, we discovered that typesetting the same source with LuaLaTeX or XeLaTeX produces pdf files without problems. In addition, opening a defective pdf file with Adobe Acrobat Reader, and then saving that pdf file in Reader, produces a pdf file without problems.

One final problem occasionally occurs in Sierra. Many people use DropBox with TeXShop with no problems. A few of these users store their source files in the DropBox folder. A few of these folks report regular TeXShop crashes. In every case known to me, these crashes end when the TeX source files are removed from DropBox.

What is the explanation? I don't know, but I have suspicions. Recall that TeXShop uses Apple's Automatic Saving code, introduced in Lion. Thus the system can save the source at random times. A source file in DropBox can also be moved to the cloud at random times. What if both the Mac and DropBox want to make changes at the same time?

The Automatic Saving code is buried deep in Cocoa and isn't by me. The only piece of TeXShop code by me related to automatic saving says "turn automatic saving on."

Here's all I know about this problem.

But to repeat, many report no problems.

TeXShop Changes 3.76 - 3.77

Version 3.76 was never released. Version 3.77 has the following changes:

TeXShop Changes 3.75

There is only one change. In TeXShop 3.74 on Sierra 10.12.1, scrolling in the pdf window was jerky. This is fixed.

TeXShop Changes 3.74

TeXShop 3.74 fixes a small number of minor issues.

TeXShop Changes 3.72 and 3.73

TeXShop 3.72 finishes the task of preparing for macOS 10.12, Sierra. It also contains the changes listed below. The only change in TeXShop 3.73 is to improve the responsiveness of popUps when mousing over links.

TeXShop Changes 3.71

This version differs from 3.70 only in the German and Dutch localizations:

TeXShop Changes 3.69 and 3.70

Version 3.69 was never released. Version 3.70 has the following features.

TeXShop Changes 3.67 and 3.68

Version 3.67 was never released. The changes in version 3.68 are listed below:

TeXShop Changes 3.66

TeXShop Changes 3.65

This fixes a few problems introduced in 3.64:

TeXShop Changes 3.64

TeXShop 3.64 fixes a few problems with the Mac OS 10.12 (Sierra) beta. One change may be of independent interest. The most-often-requested new TeXShop feature is tabs in the source and preview windows. Sierra provides this feature automatically, without any additional TeXShop code. Creating these tabbed views is straightforward. Further details will be provided when Sierra is released.

TeXShop Changes 3.63

TeXShop 3.63 is an internal version, never released.

TeXShop Changes 3.62

TeXShop Changes 3.61

TeXShop Changes 3.60

TeXShop Changes 3.59

There are several small changes in TeXShop 3.59:

TeXShop Changes 3.58

Recent TeXShop versions have been released to fix or work around a series of El Capitan bugs, particularly in PDFKit. There are three major bugs:

When this bug occurs, it is fairly easy to obtain the missing image. With the blank page active, type command-shift-+ to zoom in and then acommand-shift-- to zoom back out. This causes the page to be displayed correctly.

However, it is better to insure that the blank page does not occur. Several instances of this bug were fixed in earlier releases. This release fixes three other cases:

Incidentally, all three bugs have been reported to Apple.

In addition, the following changes were made:

TeXShop Changes 3.57

TeXShop Changes 3.56

Debugging code accidentally left in version 3.55 caused a pause between typesetting and display of the new pdf. This is fixed.

TeXShop Changes 3.55

This version fixes two significant bugs when running in El Capitan:

TeXShop Changes 3.54

The Sparkle update mechanism was broken in 3.53. It is fixed in 3.54.

For some time, TeXShop has not contained the two movies which appear in the Help Menu. They are downloaded when the user requests them. This broke in 3.53, and is fixed in 3.54.

TeXShop Changes 3.53

El Capitan introduces a significant change for TeX users. The location /usr is no longer writeable, even by users with root privileges. Consequently, the symbolic link /usr/texbin has been relocated to /Library/TeX/texbin. This new link is automatically written by both MacTeX-2015 and BasicTeX-2015. If you updated to one of these, you have the link. Once the link exists, older versions of TeX like TeXLive-2013 also work fine.

GUI programs must be reconfigured to look for the new link. TeXShop 3.52 and later does this automatically.

For more information on TeX and El Capitan, see tug.org/mactex/elcapitan.html

TeXShop 3.53 includes the following changes:

TeXShop Changes 3.52

Many of the changes in version 3.52 prepare for OS X 10.11, El Capitan. In that system, the /usr/texbin link to the TeX binaries is replaced with a new link, /Library/TeX/texbin. Users who have installed MacTeX-2015 or BasicTeX-2015 already have this new link.

TeXShop Changes 3.51

TeXShop Changes 3.50

TeXShop Changes 3.49

TeXShop Changes 3.48.1

TeXShop Changes 3.48

TeXShop Changes 3.47

TeXShop Changes 3.46

TeXShop Changes 3.45.2

TeXShop Changes 3.45.1

TeXShop Changes 3.45

TeXShop Changes 3.44

Version 3.44 has the following changes

TeXShop Changes 3.43

Version 3.43 has the following changes

TeXShop Changes 3.42

Version 3.42 has the following changes

TeXShop Changes 3.40 and 3.41

Version 3.40 was never released. Version 3.41 has the following changes

TeXShop Changes 3.39

TeXShop Changes 3.38

TeXShop Changes 3.37

TeXShop Changes 3.36.2

TeXShop Changes 3.36.1

This version was released with version number 3.36.1 to test the operation of adding a final digit to the version number. In the future, this will be used for "silent updates" in which a minor problem is fixed in the first hours of a release. In the past we did not change the version number for such silent updates, but from now on we add a decimal digit to the end of the version in both the TeXShop home page and the program. We do not update change documents for minors updates. Source files are always updated at the same time as the program, even for minor updates.

TeXShop Changes 3.36

This is a minor update to clear up issues in the important version 3.35 release. It has the following changes:

TeXShop Changes 3.35

The step from TeXShop 2 to TeXShop 3 marked a significant boundary; version 3 has 64 bit code rather than 32 bit code and was compiled on Lion. The step from TeXShop 3.26 to TeXShop 3.35 marks a second significant boundary; version 3.35 uses Automatic Reference Counting rather than manual memory management and is compiled on Mavericks.

When Mavericks appeared a year ago, magnification code used in earlier TeXShop versions broke. It was replaced in 3.26 with code which worked on Mavericks, but not on earlier systems. TeXShop 3.26 used the older magnification code on older systems.

Later versions of TeXShop were compiled on Mavericks. Then the new magnification code worked on earlier systems, but the old magnification code broke. So TeXShop 3.35 uses the new magnification code on all systems. However, over the last couple of weeks testers discovered that this code leads to obscure crashes on Lion, but not on Mountain Lion and higher.

Consequently, in version 3.35, both magnification in the Preview window and selection of rectangular regions in the Preview window are disabled on Lion. Users of Lion should upgrade to Mountain Lion if at all possible, since these features will be active again. Users who cannot upgrade should consider moving to version 3.26 because the two disabled features work with that version. But version 3.26 will not be further upgraded and TeXShop Lion users will be stuck there in the same way that Snow Leopard users are stuck with TeXShop 2.

TeXShop 3.35 has the following additional changes:

TeXShop Changes 3.27 - 3.34

Versions 3.27 - 3.31 were never released. An experimental version of 3.32 had a limited release, and 3.33 was never released. Version 3.34 is the first regular release with these changes.

The most important feature of release 3.34 is that TeXShop's source code was revised to support ARC and the program was compiled using Automatic Reference Counting. Thus memory management is now done by the compiler rather than by hand. This should make the program much more stable.

Version 3.34 has the following additional changes:

TeXShop Changes 3.26

3.26 has the following fixes:

TeXShop Changes 3.25

TeXShop 3.25 contains the following fixes:

TeXShop Changes 3.24

There is only one change. The Sparkle upgrade mechanism in previous versions of the TeXShop 3 series does not work on Mavericks. This is fixed in 3.24.

TeXShop Changes 3.22 and 3.23

TeXShop 3.23 fixed one bug. In 3.22, if the user configured TeXShop to use an external editor and then set the hidden preference ExternalEditorTypesetAtStart to YES, the program crashed when opening a file. This is fixed in 3.23.

Version 3.22 has the following changes:

TeXShop Changes 3.19, 3.20, 3.21

Versions 3.19 and 3.20 were never released.

Version 3.21 has the following changes:

TeXShop Changes 3.18

Version 3.18 has only a single change:

TeXShop contains an obsolete sync method called Search Sync, and a modern replacement by Jerome Laurens called SyncTeX. In recent versions of TeXShop, the obsolete Search Sync from the Preview Window to the Source Window randomly hangs, making TeXShop unresponsive This was supposed to be fixed in version 3.17, but it wasn't. Unfortunately, when the modern SyncTeX cannot find a match, it calls the old Search Sync, so SyncTeX can indirectly hang as well.

It is silly to waste time on an obsolete method, so in TeXShop 3.18, Search Sync from the Preview Window to the Source Window is disabled and does nothing. Most users will notice no change. Users who misconfigured SyncTeX will lose synchronization.

Users should check that

TeXShop Changes 3.17

Version 3.17 has the following features:

TeXShop Changes 3.16

Version 3.16 has the following features:

TeXShop Changes 3.15

Version 3.15 has the following features:

TeXShop Changes 3.12 - 3.14

Versions 3.12 and 3.13 were never released. Some users downloaded beta copies of 3.12 to fix 3.11 bugs. Version 3.14 has the following features:

TeXShop Changes 3.11

TeXShop Changes 3.10

TeXShop Changes 3.09

TeXShop Changes 3.08

TeXShop Changes 3.07

Richard Koch
Department of Mathematics
University of Oregon
Eugene, Oregon 97403