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Download TeXShop 4.68

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What's new in this version:

TeXShop 4.68
- There is new material in ~/Library/TeXShop/Engines/Inactive/Sage to support the latest release of Sage-Math. This material is mostly due to Herbert Schulz, who noticed the update and discovered that the Macintosh version broke several sample documents. His debugging led to a fix, both in the Macintosh version of the program and in our engines.
- Latexmk was updated to version 4.75
- There are no TeXShop code changes. TeXShop should be ready for macOS Monterey when it is released.

TeXShop 4.67
- In version 4.66, an unfortunate bug was introduced when the "Ascii" encoding was added to TeXShop. If the source file contains a magic line at the top setting the encoding, but the encoding is misspelled and thus not one of the encodings understood by TeXShop, then TeXShop hangs, and no typesetting can be done until the user quits and restarts TeXShop. This is fixed, and TeXShop now puts up an error dialog and chooses an alternate encoding. Incidentally, the best way to avoid this error is to use the "Encoding" Macro, which forces you to choose an encoding from a menu and only presents legal choices.
- Erik A. Johnson discovered that the "Trash AUX File" command in TeXShop fails when the source file is in a Google Drive volume because Google Drive does not have a Trash Folder. He examined the TeXShop sources and supplied several fixes for this problem. TeXShop 4.67 contains the most straightforward of his fixes. The fix calls the NSFileManager's "trashItemAtURL" method to put the item in the trash, but if this method returns an error, then it calls the "removeItemAtPath" method to remove the item entirely.
- TeXShop now understands the "perl script" file type for files with extension ".pk"
- Herbert Schulz revised the active engines pdflatexmk.engine and sepdflatexmk.engine and revised the folders "Latexmk" and "GhostscriptTransparencyEngines" in ~/Library/TeXShop/Engines/Inactive/Latexmk. These changes have to do with passing parameters to the engines and on through pdflatexmk to the various binary files being called. Users should read the documentation in the Latexmk folder.
- The remaining items fix bugs when TeXShop is run on macOS 12.1, Monterey. When line numbers are activated in the source window, the first bug caused missing line numbers during scrolling. The fix replaces these missing line numbers after the scroll is completed.
- A second bug caused a slight displacement in the pdf window after each typesetting job. This has been a problem for many years, but the displacement was worse in Monterey. The bug fixes this problem, both in Monterey and in earlier versions of macOS.
- During Monterey testing, an initial switch to "Single Window Mode" displayed only the tool bar of the new window, without the two content regions. This proved to be a resizing problem, fixed by resizing the window appropriately. Once fixed, the bug did not recur. Users who run into this problem should resize.

TeXShop 4.66
- There are eight changes in TeXShop 4.66. The first four are minor; the remaining four are more important.

TeXShop 4.64
- Fixed: Latexmk is updated to version 4.73. Version 4.72b of latexmk, introduced in the previous version of TeXShop, had a serious bug causing long pauses when the program parsed the log file of certain book length projects

TeXShop 4.63
- The Ghostscript transparency engines were revised. These engines in ~/Library/TeXShop/Engines/Inactive now take into account recent Ghostscript modifications and a change in TeX Live 2021
- Latexmk is updated to version 4.72b
- The Menu Item "Source --> CommandCompletion-->Add Word" lacked a keyboard shortcut in the German localization. Fixed.

TeXShop 4.62
- This version fixes localization problems, particularly in the Help menu, introduced in version 4.61

TeXShop 4.60
- The preference item "Open as Tab in Root Window" introduced in 4.59 is now off by default. Users who installed 4.59 may need to turn it off themselves. Most users will never need this feature.
- In Apple's System Preferences under the General tab, there is an item labeled "Prefer tabs: in full screen when opening documents." The text in italics is a pull-down menu with three choices: "never", "in full screen", and "always". Users who have selected "always" should not select "Open as Tab in Root Window" because they already have the desired behavior. Moreover, the TeXShop item will interfere with the behavior given by this preference setting.
- The System Preferences item changes the behavior of all Cocoa programs, while the TeXShop item only affects TeXShop. Moreover, the System Preferences item opens all source files as tabs in a single window, while the TeXShop item only opens source files associated with a given root as tabs in that root window.

TeXShop 4.59
- The TeXShop Help Menu has been rearranged slightly and a new item has been added labeled "TeX Live Documentation". TeX Live contains a massive amount of documentation, and this item makes these documents available to the user by displaying a page of links to alphabetical lists of documents and certain individual items. The links respect the active distribution, so files in TeX Live 2020 will be displayed if that is your active distribution, but when you update to TeX Live 2021, document files in TeX Live 2021 will be displayed. If you install a distribution like BasicTeX which omits the documentation, these links will become inactive.
- Some links refer to material on the internet and are always active
- Among the linked information is the "learnlatex online LaTeX lessons" for new users (with interactive examples), a recent document by Jim Hefferon listing packages all LaTeX users should know about, and a catalog illustrating all fonts in TeX Live.
- Applescript macros begin with the line "--applescript direct" or "--applescript". If the first form is used, TeXShop itself runs the script. If the second form is used, a small program called ScriptRunner in TeXShop runs the macro. This second form is required if the script asks TeXShop to perform tasks.
- In previous versions of TeXShop, ScriptRunner only had x86_64 code and macros starting with "--applescript" failed on Arm machines. In TeXShop 4.59, the bug is fixed because ScriptRunner has a universal binary.
- The next two items were requested by Uwe Schmock. After a TeX typesetting job completes, the console becomes active and items can be copied from it and pasted elsewhere. But this didn't work after BibTeX or MakeIndex jobs. Now it does.
- Suppose a project has a root file and include files for various book chapters. When the user uses SyncTeX to sync from the Preview Window to the Source Window, it sometimes has to open chapter files. A new Preference item makes these files open as tabs in the Source Window rather than as independent windows. This feature requires Catalina or higher; the preference item is ignored on earlier systems.
- The feature also does not work in Single Window mode. Tabs were added to Cocoa by Apple and work with very little code, often no code at all. But they assume a basic window design which doesn't hold in Single Window mode, so adding them to Single Window mode would involve dangerous kludges. Using independent windows for source and preview is the primary TeXShop mode and highly recommended for projects large enough to divide into independent chapters.
- There is a famous text editor named emacs. This editor was written before computers had mice, so it had elaborate commands to move the cursor. There were keystrokes to move forward one character, back one character, forward one word, back one word, forward one sentence, back one sentence, etc. Additional keystroke commands were available for copy and paste. The great disadvantage of emacs was that the editor came with a two page table of instructions and took weeks to master. The advantage is that it allowed rapid entry of text without lifting a hand to reach the mouse. (Modern versions of emacs accommodate mice.)
- The Cocoa text editing code used by TeXShop and many other programs on the Macintosh was originally written by engineers at NeXT; many of these engineers used emacs. So they added a vast number of emacs keystroke shortcuts to the editor. I don't know the history of this code, but I like to imagine that the emacs keystrokes were added secretly without telling Steve Jobs. Most modern Mac users are completely unaware of this feature.
- For a small sample, hold down the control key and type the letter "f". Notice that the cursor moves forward one character with each keystroke. Replace "f" by "b" and the cursor moves backward.
- Emacs keystrokes were completely customizable and the shortcuts for the Cocoa editor are similarly customizable. This is done by placing a file named DefaultKeyBinding.dict in ~/Library/KeyBindings. The structure of this file can be found with Google searches; some sites contain sample customization files.

TeXShop 4.58
- Claudio Beccari asked if the font used by the log window can be changed. In version 4.58, the console font and font size are also used by the log window. Changing the console font and font size modifies the font in both the console and the log window.
- Some time ago a preference was added which modified kerning and ligatures in the source window. This never worked and was abandoned, but an unfortunate souvenir remained. Setting the document font in Preferences became unnecessarily complicated: a sample window appeared and font changes were first sampled in that window. When the OK button was pressed, the sample window went away and the font change appeared in all open source windows. But the change was not permanent until the OK button at the bottom of the Preference Pane was pressed.
- In 4.58, changing the document font works like setting the console font. Press the "Set" button and the Font Panel appears. Selecting a new font or size in the Panel immediately changes the display of all open source windows. Click "OK" at the bottom of the Preference Pane to make the change permanent and "Cancel" to revert to the original font choice. The Sample Window is gone.
- Updated to the latest Sparkle update framework, version 1.24.0.
- The French localization of the Preference Pane's Source Tab had a missing item to set Parens Targets and HighLite colors. This is back.

The author of latexmk, John Collins, remarks that TeXShop engines used by latexmk should not move output files out of the source folder to alternate folders. This restriction can easily be enforced by adding the following lines to the file ~/Library/TeXShop/bin/latexmkrcedit:
- # make sure the output directories are not re-directed.
- $out_dir = $aux_dir = '';
- The latexmkrcedit file just mentioned is created automatically by latexmk the first time it is used, and then left in place because some users edit it and add personal features. If you have never edited this file, please remove it from ~/Library/TeXShop/bin. A revised version will be written the first time latexmk is used. If you have edited latexmkrcedit, please edit the file now and add the lines above to the file.

TeXShop 4.57
- Fixed the issue about ".LucidaGrandeUI" font
- Increased the default font size of the Find/Replace text view to 18pt (on Mojave and higher)
- In darkmode, the text color will be automatically adjusted
- Users will not notice the first item, which fixed debugging messages in XCode
- This should end the flurry of changes caused by Apple's Arm release, and I expect that TeXShop will remain unchanged through the holidays at least

TeXShop 4.55
- The previous version, 4.54, fixed a bug when running on Sierra and High Sierra. After that fix, TeXShop could again run on macOS 10.12 and higher. The fix made no changes in the code; instead it replaced the Source Window in the English Interface Builder file with a copy of the German version, and then hooked up the connections for this object. Unfortunately, the window had several layers: a Split View, followed by two Scroll Views lying over two Clip Views, each containing a Text View. So some of the connections were not made.
- That had rather dramatic consequences. Splitting the source window failed, various macros no longer worked, and Single Window mode failed. Thanks to rapid and detailed complaints from users, these problems were fixed by adding the missing connections. Version 4.55 is exactly what 4.54 was intended to be.

TeXShop 4.53
- Isao Sonobe created version 2.1.8 of OgreKit (this is the older of the two versions mentioned in the 4.51 Changes below) and compiled it for both Apple Silicon and Intel using XCode 12.2, the latest development system for macOS. This version does not use Garbage Collection and thus compiles fine for Apple Silicon, and it does not have the "Find All" bug described in the 4.51 Changes. Thus OgreKit is restored as a full-fledged modern component of TeXShop again, thanks entirely to Sonobe's work. TeXShop again supports regular expressions.
- It is a thrill to release TeXShop restored to normal, without having to do any work myself.
- Note that command-+ can be used to increase the font size in the Find and Restore fields of OgreKit. A "select all" is needed before doing this in the Restore field, so "command-A command-+ command-+ ..." Copying text from the source to the Find panel also respects size. These size changes are not remembered when erasing fields and entering new searches, but that is a minor problem which can be fixed later on.
- In 4.51, some changes were added to improve the experience splitting the Preview window. Further work has been done which slightly improves this action. Now the position of the top portion matches its position in the unsplit window for certain sizes. This is working on my large monitor, but not on the portable screen, so this is very much work-in-progress.

TeXShop 4.51
- In about half of the localizations of TeXShop, the Preference setting which changes the font used by the console broke. This is fixed. Thanks to Jacques Bloch for this bug report.
- A tool in the Preview Window selects Scroll, Select Text, Magnify, Magnify (Large), or Select PDF. If the window becomes too narrow, this item falls off the window and becomes a pull down menu, but the menu only displayed four choices. This is fixed; the menu now displays all five choices. Thanks to John Pryce for this bug report.

Uwe Schmock in Vienna requested a change in the code which splits the Preview window, based on an experience using it while teaching remotely. The new code has three features:
- The contextual menus for the Source window and the Preview window have an additional item to split the window. This item recognizes the option and shift keys if held down when the item is chosen. Recall that the Option key switches from horizontal to vertical splitting.
- All other changes affect only the Preview window. Suppose the window is split, so the original full window goes to the top pane. Scroll both panes and then undo the split so the top pane becomes the full window again. The next time you split, the second pane will still hold its original scrolled material. So if you are editing chapter 4, but referring to a section in chapter 2 over and over, that section in chapter 2 will remain present when you split.
- If the window is split and you hold down the Shift key and push the split icon, the two pieces will switch positions. If you then undo the split, you'll go to a full view of the region originally in the bottom.
- I hope this code is immediately useful. It has a few rough edges which will be fixed soon. I need to get this version out because of the following item.
- For a long time, the default Find option in TeXShop was the OgreKit Panel, a third party project from Japan. Now the default option is the Apple Find Bar, which is also used by several Apple applications. Users may want to switch.
- OgreKit is an open source project on GitHub. It supports regular expressions, so I was thrilled to include it in TeXShop. For many years, TeXShop used version 2 of the OgreKit code.
- When Dark Mode was released on Mojave, OgreKit was modified to support it. This modification was called version 3 of OgreKit. At the same time, a number of important changes were made to OgreKit "under the hood." The most important change involved memory management: version 2 uses garbage collection while version 3 uses ARC, automatic reference counting.
- Unfortunately, version 3 was never finished and the last modification to the GitHub source occurred two years ago. Very briefly, TeXShop switched to this version 3 of OgreKit, but it turned out that the code had a fatal error and we immediately switched back to version 2. This fatal error involved "Find All". This button seemed to work if pressed in OgreKit. But afterward, TeXShop froze. The user could type, but nothing new appeared on the screen. At that point, it was necessary to abort the program and restart. But when the user did that, they discovered that their new typing actually had been accepted and then saved. In particular, if they typed gobbledygook when the editor stopped responding, the gobbledygook was now in their source. Of course this is a fatal error.
- To repeat, version 4.44 of TeXShop uses version 2 of the OgreKit code, which works fine except for minor Dark Mode problems. However, version 2 cannot be used in the Apple Silicon era because it uses garbage collection. Apple has deprecated garbage collection and recommends that users switch to ARC. The garbage collection code is still in Big Sur, so TeXShop 4.44 continues to work there. But XCode 12, which is required to compile for Apple Silicon, refuses to compile programs which use it. This is a sure sign that it will be removed from future version of macOS, perhaps very soon.
- Since TeXShop 4.50 and higher support Apple Silicon, we had to switch to Version 3 of OgreKit. TeXShop 4.50 contains an OgreKit with the fatal "Find All" bug. But in Version 4.51 of TeXShop, I removed the "Find All" button from the OgreKit Panel, so users should be unable to create the error.
- There is no chance that I'll find time to fix OgreKit, but I prefer to leave it in TeXShop in its imperfect state for users who need regular expressions. Since I don't use it myself, I'd appreciate bug reports, and I'd like to be notified immediately if some other feature breaks the TeXShop editor. These bugs won't be fixed unless some volunteer is willing to take over the project, which would be wonderful. But if a bug breaks the TeXShop editor, I'll remove the feature if possible and otherwise remove the entire Find Pane.

TeXShop 4.50
- Apple redesigned the look of the toolbar on Big Sur, macOS 11, and provided a large number of toolbar icons, recommending that programmers use these icons rather than designing their own. The toolbar has a cleaner look and the icons are less elaborate than before.
- When version 4.50 of TeXShop is run on Big Sur, it adopts this new look for the toolbar and its icons. The new icons cannot be provided on earlier systems because they depend on Big Sur APIs, so the TeXShop toolbar is unchanged when run on earlier systems.
- Some Big Sur users may prefer the old icons. A new preference item under the "Misc" tab allows them to switch back to old icons. When it is selected, the change will apply to any new window opened afterward. The toolbar itself will still have the new Big Sur look. This preference item has no effect on earlier systems. I recommend avoiding the preference item and using the new icons, which will seem natural after a few days.
- TeXShop provided three "Typeset Button" tools, for the Source, Preview, and Single Window Mode windows. In the initial release of version 4.50, the button in the Preview window caused the program to crash. Rather than resurrecting that button, it has been removed from the program. The Preview button was mainly used with an External Editor, but these users can still typeset by using an item in the Typesetting menu, or by typing command-T.
- TeXShop now has universal binaries and runs natively on Arm machines
- The toolbar has items to split the Edit Window and the Preview Window into two independent portions. In previous versions of TeXShop, this split was done horizontally, with one portion on the top half and one on the bottom half. That still works in TeXShop 4.50, but if the option key is held down while clicking the tool, the split is now vertical rather than horizontal.
- The TeXShop Preview window has a tool to select a portion of the page and convert it to an illustration in pdf, tiff, jpeg, or png format. Several ways are provided to output this illustration. It can be copied from the page and pasted into another program, or dragged to the desktop to form a file there. Alternately, the menu command "Save Selection to File" opens a Save Panel which the user can use to save the illustration to any chosen folder, with any chosen name, and in any of the possible formats. But at some point in the past, this "Save Selection to File" command stopped worked. It is fixed in TeXShop 4.50.
- One of the possible illustration formats was "PICT", a format used in the original Macintosh from 1984 to 2000. As far as I know, no other computer system used this format. Saving illustrations in this format failed in recent versions of macOS, probably because support was removed from the operating system. All traces of the PICT format have been removed from TeXShop 4.50.
- Latexmk has been upgraded to version 4.70a
- A LuaHBTeX engine is available in ~/Library/TeXShop/Engines/Inactive. This location also contains a MetaPost engine by Vafa Khalighi which uses only pdfTeX and mptopdf.
- The asymptote engine has been upgraded to a version supplied by Vishaal Rajani and Cole Zmurchok. Moreover the .asy filetype has been upgraded to be one of the "TeX Extensions" eligible for syntax coloring and the like.
- If a TeX command has the form cite[...][...]{word}, then in addition to syntax coloring the "cite", TeXShop syntax colors "word". At the suggestion of Akshay Gupte, citation syntax coloring has been extended to natbib commands. So in version 4.50 the same rule applies to any command with begins with the letters "cite" or "Cite".
- MacTeX-2020 installed Ghostscript 9.50 rather than Ghostscript 9.51 or 9.52 because these more recent versions did not correctly handle transparency. This bug is fixed in Ghostscript 9.53.3, released on October 15, 2020, and available as an install package from https://pages.uoregon.edu/koch. Ghostscript 9.53.3 will be part of MacTeX-2021.
- If you install Ghostscript 9.53.3 and use transparency in illustrations, you should go to ~/Library/TeXShop/Engines/Inactive/, find the folder GhostscriptTransparencyEngines, and inside that folder find "For TeXShop/Engines". Find the file latexTR.engine in this folder and move this file or a copy to ~/Library/TeXShop/Engines, making it an active engine. Then instead of typesetting with pdflatex in DVI mode, you should use this engine. These engines and samples are due to Herbert Schulz. For an explanation, continue reading.
- The default typesetting engine in TeXShop is pdftex or pdflatex, which is a modified version of the original TeX program. This modified version outputs pdf files, which are easily processed by macOS and other modern systems. The original TeX program output a dvi file; the instructions in this dvi file essentially said "open a specific font, say computer modern, and stamp glyph 57 here, stamp glyph 71 here, stamp glyph 91 here, etc." Knuth assumed that other programmers would then write software which read the dvi file and output printing instructions for specific printers. The first printers used by TeX were postscript printers, and the first such program was dvips, which converted the dvi output to postscript for the printer.
- As for illustrations, the original TeX did not itself process them. Instead, if the author inserted an eps illustration, TeX set aside an area for the illustration and then inserted a "special" command in the dvi file. Such special commands were intended for the printer driver, which could ignore some such commands and process others it understood. Since dvips understood postscript, it could insert the postscript code from the eps file into the postscript output stream. Later the "pstricks" package was written, allowing authors to directly insert postscript instructions in their source code. Again TeX just passed these instructions to dvips, which knew what to do with the postscript.
- Adobe invented and controlled postscript, and licensed their postscript code to printer makers for a hefty fee. But Adobe released the postscript language specification for anyone to use, so the open source community was free to reimplement the language in open source form. The resulting code, Ghostscript, is extensively used everywhere, and very actively maintained. In the TeX world, the program ps2pdf is extensively used to convert postscript to pdf (it calls Ghostscript to do the hard work). This makes it possible to typeset using the chain TeX -> dvips -> ps2pdf, which is exactly what the DVI command does in TeXShop.
- Postscript is actually a von Neumann complete programming language, which theoretically can perform any calculation, although it is optimized for making two-dimensional images. A common trick is to write a postscript program to compute a table of prime numbers and simultaneously print the table. Since postscript is a complete language, it is vulnerable to security attacks, and the team responsible for Ghostscript actively searches for such attack points and patches them. For this reason, users should keep their copy of Ghostscript up to date.
- In particular, certain features of postscript are inherently dangerous, but luckily rarely used for TeX. These features must be retained so old projects are not damaged, but the Ghostscript team has marked them for special consideration. They added a flag called dSAFER; if this flag is set, these dangerous commands are disabled. For example, deletefile and renamefile are disabled, and Ghostscript can only open stdout and stderr for writing.
- In Ghostscript 9.50, the SAFER mode was made the default. So dSAFER is mostly replaced by the flag -dNOSAFER which allows dangerous features to run.
- But meanwhile, the Ghostscript programmers discovered that the postscript commands setting transparency produced inconsistent results when mixed with other methods. The fix ultimately will require replacing .setopacityalpha, .currentopacityalpha, .setshapealpha, .currentshapealpha. For the moment, these commands still exist but are marked as deprecated as of 9.53. Authors of several TeX style files and packages will have to replace these commands by modern equivalents defined in Ghostscript. The 9.53 documentation says for each "Note, it is strongly suggested that this method not be used as it currently may give inconsistent results when mixed with methods that set stroke and fill alpha values."
- In 9.50, these commands were disabled by default, and turned on by -dNOSAFER. This meant that authors who needed them had to accept the full set of insecurities allowed by -dNOSAFER. In 9.53.1, this is no longer the case. Instead the deprecated commands are enabled by adding the flag -dALLOWPSTRANSPARENCY.
- This design broke in 9.51 and 9.52 for reasons that are unclear to me. TeX users should stick with 9.50 or upgrade to 9.53.3.
- Many more details, including the replacements for the deprecated transparency commands, can be found in the Ghostscript documentation. Special thanks to Herbert Schulz and Bruno Voisin, who are the experts in all this. Herbert wrote the new engine for DVI mode, which looks at the version number of the Ghostscript installed on a machine and adjusts the flags accordingly. Bruno Voisin created the setup we use to provide Ghostscript on the Mac, including additional font support and so forth. I just follow his instructions.
- Herbert Schulz provides support for many TeXShop users and is an expert in features of the program which I seldom use. He has a special web page devoted to issues he has studied with suggested macros, scripts, engines, and documents. This page is well worth visiting: https://herbs.github.io

TeXShop 4.44
- In version 4.35 of TeXShop, Jörg Christian Kirchhof improved the TeXShop "HardWrap" command so it correctly handled comment lines. Shortly after 4.43 appeared, he wrote to complain that his new code had been removed. Possible, since I've been switching between Mojave and Catalina. But in fact his code was present and worked when TeXShop was run inside XCode, but did nothing when TeXShop was compiled to become a stand-alone program. Apple optimized his code out of existence. Kirchhof fixed this, and improved the code to handle another tricky edge case
- The Apple Find Bar now works in the console. Activate the main text by clicking in it, and then type command-F. Use the arrow keys to move from item to item. "Find and Replace" is not available because the console text is not editable
- I've been using Dark Mode more and more and changed the default coloring scheme for that mode. To obtain it, quit TeXShop. Then go to ~/Library/TeXShop/Themes and rename DarkTheme.plist to something else, perhaps OldDarkTheme.plist. When TeXShop restarts, it will create a new DarkTheme.plist. You still have the old one, renamed, if you prefer your version to mine
- I used this opportunity to change two default items in TeXShop Preferences. This will not affect previous users. The default Find method is now the Apple Find Bar. This method is used by more and more programs like Safari, TextEdit, and Word, and users have come to expect it. The OgreKit panel remains the default in Japan
- I also unchecked "Editor Can Add Brackets" in TeXShop Preferences under the Editor tab. When this item is checked and more than two items are selected in the Source Window, typing {, (, [, or $ places a matched pair of brackets around the selection. This can be useful for users who know about it, but new users (and others) don't like surprises, and interprete them as errors in the code

TeXShop 4.43
- In an evening phone call, Louis M. Guenin pointed out that the Apple Find Bar in TeXShop doesn't behave like the similar Find Bar in Safari, TextEdit, and other Apple programs. In other programs, the entire window being searched darkens during a search and all instances of the phrase being searched stand out in white, with the active element in yellow
- The Find Bar is created by Cocoa with only a single line of TeXShop source code turning it on. It has an extra parameter called ``incrementalSearchingEnabled'' which TeXShop did not set. Now TeXShop sets the parameter
- There is a hidden preference to turn the feature off for users who dislike it: defaults write TeXShop IncrementalSearch NO
- TeXShop has three search panels, the Apple Find Panel, the Apple Find Bar, and the OgreKit Find Panel. The choice among them is made in TeXShop Preferences and becomes active the next time TeXShop starts. The Apple Find Bar is the least intrusive, simply adding an extra search line at the top of the source window, but it is surprisingly powerful; users should give it a try. It supports "search and replace" once the word "replace" is checked, and there is a hidden pull down menu with other options, triggered by the symbol on the left side of the bar. And it fully supports Dark Mode

TeXShop 4.42
- During typesetting, it is not possible to cut and paste text from the console, but cut/paste works after typesetting ends. If there is an error, TeX waits for further input but cut/paste remains inactive. Pushing RETURN until typesetting ends will make it active. If the user pushes ABORT, cut/paste remained inactive in earlier versions of TeXShop, but now it becomes active
- In single window mode, several Preview menu items were deactivated. Now most remain active
- A similar deactivation occurs in the Source menu; the five items between "Duplicate" and "Revert" are deactivated. Many of these items behave unexpectedly in Single Window Mode because they only change the source file, so the active Source and Preview are no longer related. Moreover, none of these menu items is in the TeXShop source code, as can be verified by opening the source in XCode. Instead, they are added to the menu automatically by Cocoa when Automatic Saving is activated. Because they are entirely encoded in Cocoa, changing their behavior for Single Window mode could lead to instabilities in file saving behavior, and instability in that system would be intolerable. So in single window mode, these items are still disabled in TeXShop 4.42
- The Macintosh uses Uniform Type Identifiers (UTI) to identify various kinds of files: tex files, latex files, pdf files, html files, etc. On other operating systems, these types are often determined by file extensions: .tex, .ltx, .pdf., .html, etc. Macintosh programs contain a file named Info.plist which, among other things, associates file extensions used by the program with corresponding UTI's
- When the UTI system was invented, Apple predefined UTI's for various well-known types. Examples include public.html, public.xml, public.jpeg, public.png. Some types are associated with companies primarily in charge: com.apple.rtfd for .rtfd files, and com.adobe.pdf for pdf files
- When this system was designed, the designers did not pay enough attention to open source types not on their generic list and not controlled by a particular company. This creates headaches for authors of programs dealing with these open source files. The TeX world is a prime example; our files have extensions .tex, .ltx, .ctx, and .texi among others, but Apple does not provide public.tex, public.ltx, public.ctx, or public.texi, and the rules say that the "public domain" is under Apple's control and cannot be extended by developers
- Faced with this dilemma, developers for TeX programs on the Macintosh have by and large invented their own UTI's for these fundamental types. Originally, TeXShop used org.tug.tex, etc., but as other front ends and editors appeared defining their own UTI's, TeXShop switched to edu.uo.texshop, etc. If a user has several front ends and editors, the UTI assigned to a TeX file becomes unpredictable. These UTI's are used for QuickLook and Spotlight Searching, and these also begin to fail. Icons attached to these files can change at random, for no known reason
- In early September, I filed a developer support incident about this issue and requested that Apple extend the public list and define public.tex. I now wish I had requested public.tex, public.ltx, public.ctx, and public.texi
- Developer support wrote back correctly pointing out that the existence of these UTI's would not solve the problem unless all front end developers and editor developers dealing with TeX agreed to adopt the UTI's. Instead, they suggested that the governing body overseeing TeX development propose appropriate UTI's and obtain agreement from software authors to use them. In a separate message, they acknowledged that in the current environment with multiple UTI's defined by multiple pieces of software, there was no way to make QuickLook and Spotlight work correctly
- In the TeX world, I know of no "governing body overseeing TeX." Perhaps the closest approximation to such a body would be TUG, the TeX User Group, but in fact there are dozens of such groups across the world, and they are mostly independent of each other. In the windows world, the primary TeX distribution is MikTeX, which is independent of TUG. And as for TUG itself, it is a loose collection of people passionately devoted to TeX, but certainly not to any particular computer platform running TeX. Since UTI is a Mac-only design, there would be reluctance within TUG to get involved with this issue
- One more item in Info.plist is probably relevant here. When defining UTI's, an application lists each as an "Exported Type" or an "Imported Type". An Exported Type is a type created by that particular application, while an Imported Type is created by some other entity but used by the application. When I switched to edu.uo.texshop.tex, I defined it as an Exported Type in hopes that the operating system would pay more attention. I now think this was a mistake
- Our only hope is that someone will take on the thankless task of rounding up software authors and getting them to agree to a single UTI, at least for the four types I've listed above. I'm not willing to be that person, and indeed I suspect it isn't reasonable for someone developing one of the TeX applications to perform the task. I suspect that the job would be infinitely easier if Apple began by defining public.tex, public.ltx, public.ctx, and public.texi, and perhaps a first userful step would be for others to add their request to the pile
- But in the meantime, TeXShop 4.42 takes an initial step in the required direction. It reverts to the original choice of org.tug.tex, org.tug.ltx, org.tug.ctx, and org.tug.texi for files with extensions .tex, .ltx, .ctx, and .texi, and all four are defined as Imported Types rather than Exported Types.
Perhaps the day will come when these four items can become public.tex, public.ltx, public.ctx, and public.texi

TeXShop 4.41
- Version 4.41 fixes minor engine problems caused by the elimination of the default ConTeXt menu item. Note that up to date ConTeXt engine files remain in 4.41; the version of ConTeXt in the menu was years out of date

TeXShop 4.39
- James Crippen reported that in version 4.38, when the magnify tool is selected in the Preview window and the Source window is active, clicking in the content region of the Preview window magnifies but does not activate the window. This is fixed. Now the first click in the content region of an inactive Preview window activates that window, but an additional click is needed to magnify

TeXShop 4.38
- The magnification glass code in 4.37 had bugs. With the glass active, it was impossible to scroll the pdf window with a track pad. Moreover, the window could not be resized, and the mouse-based scroll bar did not work; instead both actions triggered the magnifying glass
- The fixes should be sufficiently tested today to insure no future problems. But just in case, anyone with source code can return to the original version of the glass before 4.37 was released. On line 59 of globals.h, the code "#define IMMEDIATEMAGNIFY 0" occurs. Remove this line or comment it out and recompile

TeXShop 4.35
- Change log not available for this version

TeXShop 4.27
- When using the Apple Find Bar, command-G now searches for the next item immediately; it isn't necessary to activate the edit portion of the window before using this shortcut
- Nicola Vitacolonna provided new LilyPond engines and documentation
- The documentation on the Sage engine has been improved
- Latexmk was updated from version 4.61 to version 4.63

TeXShop 4.26
- There are two ways to activate sync from source to preview and preview to source; either click on a spot while holding down the command key, or bring up a contextual menu from a spot and select the first item, "sync". The second method lost accuracy sometime in the Mojave era. This is fixed and now the two methods are equivalent
- The information on using TeX and Sage together in ~/Library/TeXShop/Engines/Inactive/Sage has been improved, and the example typesets correctly with the latest Sage

TeXShop 4.25
- TeXShop 4.25 fixes an important memory leak. It fixes Applescript support, which broke a couple of months ago. And it continues the story of synchronizing with external editors started by TeXShop 4.24. Only people who configure TeXShop for an external editor will be interested in that third feature. But first, the memory leak, and applescript support

TeXShop 4.24
-Fixed: Seiji Zenitani reported that In localized versions of TeXShop, the Tags and Index pulldown menus first appear in English and then switch to the correct language when initialized. This is particularly annoying in Japanese because English stands out like a sore thumb
- Jesús Soto uses TeXShop with an external editor, TextMate, and requested that SyncTeX in TeXShop be given the ability to sync from the Preview window to the corresponding source in TextMate. I absolutely, positively, refused to honor this request. But I couldn't help thinking about it. In the end I relented
- TextMate installs a command line program in /usr/local/bin which is able to control some of the features of the editor. For instance, the command: /usr/local/bin/mate --line 50 /Users/koch/Syllabus.tex
- opens Syllabus.tex in TextMate (if not already open) and highlights line number 50. This makes it easy to support syncTeX from TeXShop to TextMate because the standard TeXShop routine to implement syncTeX can still be used until the last moment when a line in the Source Window would be highlighted; this final step can be replaced by a call to "mate"
- Therefore TeXShop 4.24 can sync from the Preview window to TextMate in the standard way: click on a spot in the pdf display while holding down the command key. As a bonus, Goto Error works from the Console window if the user is using TeXShop to typeset. Click this button to be taken to the first error, and click again and again to cycle through the first few errors. Of course TeXShop must be in "external editor" mode to use these features; It is also necessary to activate the features with a hidden preference: defaults write TeXShop TextMateSync YES
- TextMate is one of many editors for the Macintosh. The ultimate goal is to add the same support for most other editors. TeXShop Preferences would have a drop-down menu listing editors it understands. The user could select their editor in this menu and automatically "sync from pdf to editor" and "Goto Error".
- Unfortunately, I don't have time or money to accumulate editors and determine how each can be controlled. But users can gather this information for me. TeXShop 4.24 already supports other editors provided their users can write simple shell scripts, as will be explained shortly. If a user adds this support, they should send information back to me on how it was done, so I can make it easier for future users of their editor to gain the feature
- If you use a different external editor and want to implement the feature, you must first turn it on using a hidden preference: defaults write TeXShop OtherEditorSync YES
- This default deactivates the TextMateSync preference mentioned earlier. Instead whenever TeXShop wants to "sync from pdf to editor" or "Goto Error", it calls a shell script in /usr/local/bin named "othereditor". When it calls this script, it sends two parameters to the call: $1 contains the line number (as a string), and $2 contains a full path to the desired tex source file. The othereditor script then calls the external editor using its version of the "mate" program
- But there is no "othereditor" script in /usr/local/bin. The user needs to create this script. The script must be named "othereditor" with no extension, and have its execute bit turned on. The script should call whatever binary is used by the desired editor to open the file $2 if it is not already open, and jump to line $1

For example here is the complete "othereditor" script file for TextMate:
set path= ($path /Library/TeX/texbin /usr/texbin /usr/local/bin)
/usr/local/bin/mate --line $1 $2

TeXShop 4.23

- TeXShop provides default light and dark themes in ~/Library/TeXShop/Themes, named LiteTheme.plist and DarkTheme.plist. These are available in case the user activates other themes and then accidentally removes them. If LiteTheme.plist or DarkTheme.plist is removed from the directory, TeXShop will recreate it. However, previous versions of TeXShop failed to recreate DarkTheme. That is because the code to recreate LiteTheme was copied and pasted to recreate DarkTheme, but variables inside this code were not changed. This bug is fixed. It is unlikely that many users ran into it
- Several users, however, ran into a second bug. When they started TeXShop, the Preview Window and the Console Window did not update their colors. In dark mode, the font color and background color of the console were equal, so the contents were invisible. Opening TeXShop Preferences and editing these colors fixed the problem, but this had to be done every time TeXShop started
- This problem only affected users who configured TeXShop to use an external editor. The problem is now fixed
- Most theme colors are for the editor, so the initialization code which set these colors was placed in the section of TeXShop initializing the editor, and thus never ran in external editor mode. The fix involved moving this color initialization code five lines down in the code base, so it covered all documents
- Kurt Roth pointed out that version 4.22 broke "makeIndex" and provided a useful source file which clearly showed this binary working in version 4.21 and failing in 4.22. This problem is fixed. The source file made it easy to isolate the problem. Thanks, Kurt
- There were two main changes in 4.22 which could affect makeIndex. The first was that I switched from the old NSTask API's, now deprecated, to the new API's. Roth's source code revealed that this switch was not the cause of his problem
- The second change was that I switched from the "notification" method of telling TeXShop that an external task ended to the "termination Handler" method. This handler failed with makeIndex, announcing a termination before the task was finished. The fix involved switching back to the old method when makeIndex is run
- It is possible that the terminationHandler is misbehaving for other TeX tasks, so that instead of fixing the NSTask problem discussed at length in the 4.22 changes, it made the problem worse. Consequently, in TeXShop 4.23 we use the new NSTask API's on High Sierra and Mojave (where they are available), but revert on all operating systems to the old notification method of telling TeXShop that an external task ended
- This fix bypasses the fix for NSTask problems implemented in TeXShop 4.22 and described in detail in the associated Changes document. Therefore if latex seems to have failed due to the bug, TeXShop will not call "Trash AUX Files" and will not try to typeset a second time. Moreover, it will not display log information in the console

However, hidden preference items are available to turn this behavior back on, and activate the terminationHandler, for users who'd like to help debug the NSTask problem. To turn on the terminationHandler, which is off by default:
- defaults write TeXShop UseTerminationHandler YES

Turning this on will also turn on the NSTask bug fix by default. To turn it off:
- defaults write TeXShop DoNotFixTeXCrash YES

Logging information will be off by default. To turn it on:
- defaults write TeXShop DisplayLogInfo YES

Note: A very small number of users got an experimental version of TeXShop 4.23 before its official release. For those users, the default value of UseTerminationHandler was YES rather than the current NO. These users should run:
- defaults write TeXShop UseTerminationHandler NO

TeXShop 4.22

- Footnote syntax coloring is now triggered by footnote, autocite, footcite, and cite. In each of these commands, optional parameters [...] are ignored but do not turn off coloring the required {...}
- A small number of users have reported a bug while typesetting large documents (700 pages and larger). The bug occurs randomly. Typesetting will suddenly stop in the middle, without an error message, and input to the console will end, but the rest of TeXShop will remain active. Recovery is easy; just typeset again. Since the aux file was not properly closed, it is usually necessary to "Trash Aux Files" before typesetting
- TeXShop 4.22 has a workaround for this bug. Because it adopted a new Apple API for NSTask, and implemented a "terminationHandler" provided by that API, it can identify typesetting jobs which ended because of the bug. It then automatically calls "Trash Aux Files" and typesets again. This happens so rapidly that users may not notice the double typesetting job

There is a possibility that this "fix" will have unintended consequences, although several users have tested it for a week. So there is a hidden preference to turn it off:
- defaults write TeXShop DoNotFixTeXCrash YES

TeXShop can output log information about NSTask and the typesetting bug. This is off by default, but can be turned on with a hidden preference:
- defaults write TeXShop DisplayLogInfo YES

TeXShop 4.21
- In version 4.21, a footnote is colored starting with the initial "{"until the matching occurrence of "}" is found. In version 4.20, coloring ended with the first "}", but this brace did not form a matching pair with the starting brace if other "{, }" pairs were in the comment
- In 4.21, the "Color Index" tool colors index items using the "index color". In 4.20 by mistake, the "footnote color" was used. TeXShop 4.21 only colors the material in the index parameter; when first introduced several versions ago, the "Color Index" tool also colored the word "index" and associated braces

TeXShop 4.20

- The menu item "Close Current Environment" added an extraneous "92" to the text it inserted in the source. This was caused by a warning issued by the compiler and its suggested fix, which I accepted too readily, The "92" is now gone.
- TeXShop has a special color for footnote text. This color can be turned off by a hidden preference, but it was always off in version 4.19. The bug is fixed. The footnote color is also used for index text if the "Color Index" tool is added to the toolbar and checked. This broke and is now fixed.
- In the Italian localization, single window mode showed a blank left side. This is fixed.

TeXShop 4.19

- In some situations, the initial bracket or brace of a command parameter was not syntax colored. The bug was hard to see in Lite mode, but stood out like a sore thumb in Dark mode. The bug is fixed. Many users may not have noticed this bug because it only occurred when the second of the three new "Spell Checking" options in TeXShop Preferences was on
- John Farragut pointed out that the console transparency was set to the source transparency rather than to its own value as set in Themes. This is fixed
- Before version 4.18, the tags menu was entirely reconstructed after each new text entry. This was wasteful of computer resources and risked making the editor sluggish. In 4.18, this code was deactivated and instead the tags menu is constructed just before it is displayed
- Tag entries can be displayed in three different menus. If the toolbar is in "Icon Mode" or "Icon + Text" mode, the icon itself is a drop-down menu which displays the tags. If the toolbar is in "Text Only" mode, the "Tags text" is a drop-down menu which displays the tags. Finally, there us a TeXShop Preference setting which adds a Tags menu to the menu bar, and this menu also displays the tags. Clicking on the Tags Icon updates all three menus
- However, there was a bug in 4.18, so that clicking on the "text only" tool or on the Tag menu in the menu bar did not update any menus. This caused problems for users whose toolbars are in "Text Only" mode, since nothing they clicked updated the menus. Consequently, all tag menus remained empty. This problem also affected the new Labels item. Most users set the toolbar to "Icon" or "Icon + Text" modes, and did not run into this problem. I got only one bug report
- Unfortunately, this problem does not have an easy solution. The code in version 4.18 depended on a feature of PopUp menus in Cocoa; they can send a notification when first clicked, before displaying their popup menu, giving time for the menu to be constructed on the fly. Ordinary menus and menus attached to "Text Only" mode do not come with this Cocoa feature. I spent several days trying to find a work-around, before deciding that any work around would not be in the spirit of Cocoa and could easily break in the future. Returning to the old method of updating the Tag menu would fix the problem. But this would risk a sluggish editor, and benefit only 10% of users who set the toolbar to text only mode
- Consequently, version 4.19 introduces another tool for these special users affected by the problem. The name of the tool is "Update" because clicking it updates all tag and labels menus to the current state of the text. Users who adopt text-only toolbars should add the Update tool to their Source toolbar. If they sometimes use "single window mode", they should also add the Update tool to that toolbar. Then use Tags and Labels as usual, even after editing text. But if you begin to notice that Tags or Labels doesn't take you to exactly the correct line, hit Update before continuing. Incidentally, when syntax coloring is on, the Tags and Labels menus are updated once when a document is first opened

TeXShop 4.18

- There is a new tool in the Source and Combined Windows toolbars called "Labels". It behaves like the existing Tags tool except that it lists all labels in the source code. Selecting an item in the resulting pull down menu takes the user to the definition of that particular label
- The Tags menu now also tags lines beginning with the following commands, for users of Beamer and Powerdot
- When a TeXShop engine job runs, it will find that TeXShop has set a new environmental variable for it called TS_CHAR. This variable holds the current selection location in the source file. Some engine authors may find this useful
- Michael Beeson sent a crash report for TeXShop when using the "search" method of synchronization, a very old method mostly superseded by Lauren's SyncTeX. The crash is fixed in 4.18
- The most controversial Sims' addition, and the most useful for some, concerns to spell checking in TeXShop. When spell checking is on, many LaTeX commands are marked as misspelled. This is annoying. One common solution is to install a LaTeX-aware spell checker like cocoAspell. Thanks to Sims, TeXShop can now handle this problem --- for some users --- while using the standard Apple spell checker and standard Apple dictionaries
- Apple provides three ways to spell check text in Cocoa, and TeXShop inherits these three methods. The methods are activated for the current file in TeXShop's Edit menu, and default values can be set in TeXShop Preferences
- The first of these items is titled "Check Spelling", and has a keyboard shortcut "command + semicolon". When this combination is pressed, the first misspelled word is highlighted. Each additional press causes TeXShop to jump to the next misspelled word and highlight it. This spell check command is thus a glorified search in which only misspelled words are found
- A second way to spell check is to activate the menu item "Correct Spelling Automatically." This converts your computer into a giant iPhone, constantly standing behind you and changing what you type into what it thinks you ought to have typed. This feature can be turned off in system preferences, but users had a hard time discovering how to do it. So I added this item to TeXShop, not because I wanted users to use it, but because I wanted users to easily turn it off
- The final way to spell check is to use the menu item "Check Spelling While Typing." This item underlines misspelled words as they are typed, and the user can then go back and correct these words. This is how I spell check in TeXShop. The new spelling code works well with this style of spell checking. The new code doesn't work with the other methods, but it does no harm there
- In TeXShop Preferences, there is a new box of selections labeled "Spell Checking". These items are off by default. Leave them off if you use cocoAspell or any spell checking method except "Check Spelling While Typing."
- The first spell checking item turns off spell checking for all TeX command words: documentclass, usepackage, begin, alpha and the like. The second is explained in the next paragraph and the third turns off spell checking inside comments. Some users may write little essays as source comments and prefer to leave spell checking on for them
- Many TeX commands have optional parameters [...] and mandatory parameters {...}. The entries inside these parameters can also be specialized TeX words. That is true of the first example below, and it is annoying if the spell checker marks "parfill" and "parskip" as misspelled. On the other hand, in the second example the parameter is a user-supplied string which ought to be spell checked
- The second item in the "Spell Checking" box of TeXShop Preferences turns on a somewhat crude method of handling both kinds of parameters. When this item is on, most TeX command parameters are spell checked. But TeXShop has an internal list of certain TeX commands whose parameters contain specialized words, and for these it turns off spell checking for the first two parameters (if they occur in the source). This internal list, incidentally, is exactly the list marked for special handling by cocoAspell. But cocoAspell is more intelligent, and can mark which parameters to spell check and which to skip
- There is a hidden preference setting to extend the list of specialized TeX commands. The first command below adds one more element to the existing array of user supplied exceptions. The second command erases the array so the user can start over. Note that neither command affects TeXShop's default list of special commands
- What is the mechanism used to turn off spell checking? I wish I had thought of Sims' idea. The text in the TeXShop source window is an "attributed string." This means it is an ordinary (often very long) string, with an additional data structure associated with the string that lists attributes like "text color" and "background color" for selected ranges of the string. Sims noticed that one of the available attributes is "do not spell check this selection." So Sims added lines to TeXShop's syntax coloring code which prevent the Mac from spell checking TeX commands or comments. This means in particular that the feature only works if syntax coloring is turned on
- Note that cocoAspell uses more sophisticated methods and operates at the optimal moment when the system is actually checking spelling, rather than at an earlier syntax coloring moment. So if you use cocoAspell, you will want to turn all the "Spell Checking" preferences off
- Because TeXShop doesn't act at the "spell checking moment", there are some minor glitches with our method. When a document is first opened, there can be a slight delay and then all TeX commands will be marked as misspelled. But a single click in the edit window will fix this problem. Similarly, while source is being typed, some commands may be marked as misspelled, but the mark will be removed when RETURN is pressed
- Unfortunately, the new attribute is totally ignored by the "Check Spelling" search item, so it will not help when you go through the manuscript word by word looking for misspellings

TeXShop 4.17

- Version 4.16 had an updated OgreKit Find Panel. Unfortunately, we only briefly tested this panel, and it caused several problems when 4.16 was released
- The new panel did not support Yosemite, making TeXShop crash on Yosemite. The new panel refused to run on isolated machines running Sierra, although it worked on most machines. The panel had other minor bugs which were reproducible but with easy workarounds
- Then a serious, reproducible, and dangerous bug was discovered. If the "Find All" button was pressed in OgreKit, it worked as expected, but afterward the editor appeared to accept no new edits. Although the user could type, no new material appeared in the source. But if the source window was closed and then reopened, these edits suddenly appeared. Thus a user could close a document in one state, and open it in a different state. This is not acceptable
- Version 4.17 reverts to the old OgreKit. This has minor font size problems and problems in Dark Mode, but no serious bugs
- Version 4.17 has only one other change. In earlier versions of TeXShop, synctex from source to preview colored rather large sections of preview text. If a user in Dark Mode selected orange rather than yellow, a small section of orange appeared in a larger yellow selection. Now synctex colors a smaller section for greater accuracy, and with only one color

TeXShop 4.16

- The Ogrekit Find Panel has been modified by the author, Isao Sonobe, to use the latest Apple techno

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