elisp: Motion and Syntax
34.5 Motion and Syntax
======================
This section describes functions for moving across characters that have
certain syntax classes.
-- Function: skip-syntax-forward syntaxes &optional limit
This function moves point forward across characters having syntax
classes mentioned in SYNTAXES (a string of syntax class
characters). It stops when it encounters the end of the buffer, or
position LIMIT (if specified), or a character it is not supposed to
skip.
If SYNTAXES starts with ‘^’, then the function skips characters
whose syntax is _not_ in SYNTAXES.
The return value is the distance traveled, which is a nonnegative
integer.
-- Function: skip-syntax-backward syntaxes &optional limit
This function moves point backward across characters whose syntax
classes are mentioned in SYNTAXES. It stops when it encounters the
beginning of the buffer, or position LIMIT (if specified), or a
character it is not supposed to skip.
If SYNTAXES starts with ‘^’, then the function skips characters
whose syntax is _not_ in SYNTAXES.
The return value indicates the distance traveled. It is an integer
that is zero or less.
-- Function: backward-prefix-chars
This function moves point backward over any number of characters
with expression prefix syntax. This includes both characters in
the expression prefix syntax class, and characters with the ‘p’
flag.
Info Catalog
elisp: Syntax Properties
elisp: Syntax Tables
elisp: Parsing Expressions