5.1 The editors 

For these editors 4TeX supports a set a macros that we will discuss below.

In TSE Junior 4.0 [F1] invokes a help screen which shows the meaning of the most important keys. In TSE 2.x on pressing [F1] a menu appears, containing submenus on general as well as 4TeX subjects. Below we describe the specific 4TeX features of both editors. Unless stated otherwise they work in both editors.

TeX-specific commands:

• By default the main TeX file as well as the include file are loaded in the editor. By pressing [Alt][N] one can switch between the files that are loaded.
• [Alt][Tab] find matching symbol for {, }, [, ], ( or ). In Windows [Alt][Tab] already has a global meaning. In that case use [Alt][F3].
• [Alt][key] where [key] is one out of the following list, produces the indicated output. The cursor is positioned in between the two symbols.

  [(]

  ()

  [{]

  {}

  [£]

  $$

  []

  &&

  [-]

  \{\}

• [Alt][\] choose a LaTeX environment. A selection list containing many standard LaTeX environments is presented. Use the cursor keys and [Enter] to select. In TSE 2.x speed-search can be used: by typing the initial characters of the desired environment the cursor jumps to the intended line.

  To use your own list of environments you should set the environment variable ENVIRONMENT in texuser.<os>.

• [Ctrl][I] insert \index{...} behind the word at the cursor position. For example, if the cursor is positioned at the word gnu then pressing [Ctrl][I] results in gnu\index{gnu}.
• [Alt][%] display a menu of sample TeX files. Use cursor keys and [Enter] to select one. This file will be copied into the current file at the cursor position.
• [Ctrl][B] run BibDB, the program to manage the BibTeX database files. See Section 7.1.2 for a detailed description.
• [F3] show the on-line TeX documentation in the directory ?:\emtex\doc. First a list of files containing the documentation is presented. Use the cursor keys and [Enter] to select one. The documentation file is displayed by an appropriate program, depending on the type of file. Press [Esc] twice to return to the editor. Note: This command is also available in all 4TeX menus.

  Warning: The documentation is on a very technical level and not always easy to read. You may prefer to consult a more experienced user instead.

• [Ctrl][G] replace the word at the cursor position by a string from gloss.txt.¹ For example, if the file gloss.txt contains a line be  begin{eqnarray} then on typing \be followed by [Ctrl][G] this will be replaced by begin{eqnarray}. Once this facility has been used in an editing session, the file gloss.txt will remain in the editor and new lines can be added.
• [Alt][/] show a list of all labels in the current bibliographic database (TSE 2.x only). Use the cursor keys and [Enter] to select a label. Output of the macro is the selected label in braces as used in \cite and \nocite commands.
• [F10] compile and view the current block. 4TeX recognizes two special cases when [F10] is pressed:
  • if no block is defined then the current line is treated as if it were a block;
  • if the current format is SliTeX then the whole slide containing the current block is compiled and viewed.
  To ensure that all necessary and macros are included, 4TeX creates and then compiles a temporary file containing
  1.  all lines of the main TeX file up to and including the line containing the string
     \begin{document};
  2.  the current block (see above);
  3.  the line \end{document}.²
• [Alt][F10] compile and view the current file. It is the same as [F10] with the current block equal to the current file.
• [Ctrl][N][E] (TSE 2.x only) find next error. To be used to locate and correct errors reported by the TeX compiler. All errors in all files (also e.g., .sty files) are handled in the order in which they appeared. Each time, the error message generated by TeX (e.g., Undefined control sequence.) is displayed on the top line of the screen.
• [F5] user defined utilities. This is the same feature as defined in all 4TeX menus.
• [Alt][F1] or [Ctrl][F1] check/correct the spelling of the word at the cursor position. For a detailed description of the spell-checker AmSpell see the discussion on the command check Spelling and Section 7.3. Press [Ctrl][F1] to check spelling in the default language (see Section 4.1) of the current main TeX file. Press [Alt][F1] to select a language first. If the word at the cursor position is correctly spelled, you will be immediately returned to the editor. How to proceed if a spelling error was found is described in Section 7.3.
• [Alt][=] search for the next occurrence of the word at the cursor position. [Ctrl][=] will search for the previous occurrence of that word. These two macros are only supported by TSE 2.x.
• [Alt][S] will display several tables (LaTeX commands and result) of mathematical symbols.
• [Ctrl][Ins] (TSE 2.x only) will scan the main document and all include files for labels. A list of all labels is displayed and you are prompted to select one label. The output of the macro is that the selected label is entered in your document. This macro makes it possible to construct a reference to a label without exactly knowing/remembering the label name.
• [Alt][X] save and exit all files. Just before this is done, a marker is placed at the cursor position in each file that is loaded in the editor.³ This marker is used to restore the cursor position on reentrance.

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