When the syntax table is not flexible enough to specify the syntax of
a language, you can override the syntax table for specific character
occurrences in the buffer, by applying a
property. See Text Properties, for how to apply text properties.
The valid values of
syntax-table text property are:
nil, the character's syntax is determined from the current syntax table in the usual way.
If this is non-
nil, the syntax scanning functions, like
forward-sexp, pay attention to
syntax-tabletext properties. Otherwise they use only the current syntax table.
This variable, if non-
nil, should store a function for applying
syntax-tableproperties to a specified stretch of text. It is intended to be used by major modes to install a function which applies
syntax-tableproperties in some mode-appropriate way.
The function is called by
syntax-ppss(see Position Parse), and by Font Lock mode during syntactic fontification (see Syntactic Font Lock). It is called with two arguments, start and end, which are the starting and ending positions of the text on which it should act. It is allowed to call
syntax-ppsson any position before end. However, it should not call
syntax-ppss-flush-cache; so, it is not allowed to call
syntax-ppsson some position and later modify the buffer at an earlier position.
This abnormal hook is run by the syntax parsing code prior to calling
syntax-propertize-function. Its role is to help locate safe starting and ending buffer positions for passing to
syntax-propertize-function. For example, a major mode can add a function to this hook to identify multi-line syntactic constructs, and ensure that the boundaries do not fall in the middle of one.
Each function in this hook should accept two arguments, start and end. It should return either a cons cell of two adjusted buffer positions,
nilif no adjustment is necessary. The hook functions are run in turn, repeatedly, until they all return