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Improve word motion docs (Bug#30815)

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* doc/lispref/positions.texi (Word Motion): Fix reference to
`char-script-table'.
* lisp/simple.el (backward-word):
* src/syntax.c (forward-word): Mention `char-script-table' and add
link to the 'Word Motion' manual section.
This commit is contained in:
Noam Postavsky 2018-03-13 22:17:43 -04:00
parent 2b8507fbdc
commit 10bd3b3af8
3 changed files with 13 additions and 10 deletions
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2
doc/lispref/positions.texi
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@ -210,7 +210,7 @@ by the current buffer's syntax table (@pxref{Syntax Class Table}), but
modes can override that by setting up a suitable
@code{find-word-boundary-function-table}, described below. Characters
that belong to different scripts (as defined by
@code{char-syntax-table}), also define a word boundary
@code{char-script-table}), also define a word boundary
(@pxref{Character Properties}). In any case, this function cannot
move point past the boundary of the accessible portion of the buffer,
or across a field boundary (@pxref{Fields}). The most common case of

12
lisp/simple.el
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@ -7027,11 +7027,13 @@ current object."
With argument ARG, do this that many times.
If ARG is omitted or nil, move point backward one word.
The word boundaries are normally determined by the buffer's syntax
table, but `find-word-boundary-function-table', such as set up
by `subword-mode', can change that. If a Lisp program needs to
move by words determined strictly by the syntax table, it should
use `backward-word-strictly' instead."
The word boundaries are normally determined by the buffer's
syntax table and character script (according to
`char-script-table'), but `find-word-boundary-function-table',
such as set up by `subword-mode', can change that. If a Lisp
program needs to move by words determined strictly by the syntax
table, it should use `backward-word-strictly' instead. See Info
node `(elisp) Word Motion' for details."
(interactive "^p")
(forward-word (- (or arg 1))))

9
src/syntax.c
View File

@ -1552,10 +1552,11 @@ left there and the function returns nil. Field boundaries are not
noticed if `inhibit-field-text-motion' is non-nil.
The word boundaries are normally determined by the buffer's syntax
table, but `find-word-boundary-function-table', such as set up
by `subword-mode', can change that. If a Lisp program needs to
move by words determined strictly by the syntax table, it should
use `forward-word-strictly' instead. */)
table and character script (according to `char-script-table'), but
`find-word-boundary-function-table', such as set up by `subword-mode',
can change that. If a Lisp program needs to move by words determined
strictly by the syntax table, it should use `forward-word-strictly'
instead. See Info node `(elisp) Word Motion' for details. */)
(Lisp_Object arg)
{
Lisp_Object tmp;