(emacs)TeX Editing

Next: LaTeX Editing Up: TeX Mode

TeX Editing Commands

   Here are the special commands provided in TeX mode for editing the
text of the file.

     Insert, according to context, either ```' or `"' or `'''

     Insert a paragraph break (two newlines) and check the previous
     paragraph for unbalanced braces or dollar signs

`M-x validate-tex-region'
     Check each paragraph in the region for unbalanced braces or dollar

`C-c {'
     Insert `{}' and position point between them (`tex-insert-braces').

`C-c }'
     Move forward past the next unmatched close brace (`up-list').

   In TeX, the character `"' is not normally used; we use ```' to start
a quotation and `''' to end one.  To make editing easier under this
formatting convention, TeX mode overrides the normal meaning of the key
`"' with a command that inserts a pair of single-quotes or backquotes
(`tex-insert-quote').  To be precise, this command inserts ```' after
whitespace or an open brace, `"' after a backslash, and `''' after any
other character.

   If you need the character `"' itself in unusual contexts, use `C-q'
to insert it.  Also, `"' with a numeric argument always inserts that
number of `"' characters.

   In TeX mode, `$' has a special syntax code which attempts to
understand the way TeX math mode delimiters match.  When you insert a
`$' that is meant to exit math mode, the position of the matching `$'
that entered math mode is displayed for a second.  This is the same
feature that displays the open brace that matches a close brace that is
inserted.  However, there is no way to tell whether a `$' enters math
mode or leaves it; so when you insert a `$' that enters math mode, the
previous `$' position is shown as if it were a match, even though they
are actually unrelated.

   TeX uses braces as delimiters that must match.  Some users prefer to
keep braces balanced at all times, rather than inserting them singly.
Use `C-c {' (`tex-insert-braces') to insert a pair of braces.  It
leaves point between the two braces so you can insert the text that
belongs inside.  Afterward, use the command `C-c }' (`up-list') to move
forward past the close brace.

   There are two commands for checking the matching of braces.  LFD
(`tex-terminate-paragraph') checks the paragraph before point, and
inserts two newlines to start a new paragraph.  It prints a message in
the echo area if any mismatch is found.  `M-x validate-tex-region'
checks a region, paragraph by paragraph.  When it finds a paragraph that
contains a mismatch, it displays point at the beginning of the paragraph
for a few seconds and pushes a mark at that spot.  Scanning continues
until the whole buffer has been checked or until you type another key.
The positions of the last several paragraphs with mismatches can be
found in the mark ring (Note: Mark Ring.).

   Note that Emacs commands count square brackets and parentheses in
TeX mode, not just braces.  This is not strictly correct for the
purpose of checking TeX syntax.  However, parentheses and square
brackets are likely to be used in text as matching delimiters and it is
useful for the various motion commands and automatic match display to
work with them.

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