procyberian/emacs
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

* search.c (Fre_search_forward, Fre_search_backward): Improve doc (Bug#25193).

Browse source
This commit is contained in:
Hong Xu 2016-12-12 19:20:31 -08:00 • committed by Noam Postavsky
parent c7ed57eaef
commit 0c55cf43e6
1 changed files with 21 additions and 31 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

52
src/search.c
View file

@ -2257,26 +2257,12 @@ See also the functions `match-beginning', `match-end' and `replace-match'. */)
DEFUN ("re-search-backward", Fre_search_backward, Sre_search_backward, 1, 4,
"sRE search backward: ",
doc: /* Search backward from point for match for regular expression REGEXP.
Set point to the beginning of the occurrence found, and return point.
An optional second argument bounds the search; it is a buffer position.
The match found must not begin before that position. A value of nil
means search to the beginning of the accessible portion of the buffer.
Optional third argument, if t, means if fail just return nil (no error).
If not nil and not t, position at limit of search and return nil.
Optional fourth argument COUNT, if a positive number, means to search
for COUNT successive occurrences. If COUNT is negative, search
forward, instead of backward, for -COUNT occurrences. A value of
nil means the same as 1.
With COUNT positive, the match found is the COUNTth to last one (or
last, if COUNT is 1 or nil) in the buffer located entirely before
the origin of the search; correspondingly with COUNT negative.
doc: /* Search backward from point for regular expression REGEXP.
This function is almost identical to `re-search-forward', except that
by default it searches backward instead of forward, and the sign of
COUNT also indicates exactly the opposite searching direction.
Search case-sensitivity is determined by the value of the variable
`case-fold-search', which see.
See also the functions `match-beginning', `match-end', `match-string',
and `replace-match'. */)
See `re-search-forward' for details. */)
(Lisp_Object regexp, Lisp_Object bound, Lisp_Object noerror, Lisp_Object count)
{
return search_command (regexp, bound, noerror, count, -1, 1, 0);
@ -2286,18 +2272,22 @@ DEFUN ("re-search-forward", Fre_search_forward, Sre_search_forward, 1, 4,
"sRE search: ",
doc: /* Search forward from point for regular expression REGEXP.
Set point to the end of the occurrence found, and return point.
An optional second argument bounds the search; it is a buffer position.
The match found must not end after that position. A value of nil
means search to the end of the accessible portion of the buffer.
Optional third argument, if t, means if fail just return nil (no error).
If not nil and not t, move to limit of search and return nil.
Optional fourth argument COUNT, if a positive number, means to search
for COUNT successive occurrences. If COUNT is negative, search
backward, instead of forward, for -COUNT occurrences. A value of
nil means the same as 1.
With COUNT positive, the match found is the COUNTth one (or first,
if COUNT is 1 or nil) in the buffer located entirely after the
origin of the search; correspondingly with COUNT negative.
The optional second argument BOUND is a buffer position that bounds
the search. The match found must not end after that position. A
value of nil means search to the end of the accessible portion of
the buffer.
The optional third argument NOERROR indicates how errors are handled
when the search fails. If it is nil or omitted, emit an error; if
it is t, simply return nil and do nothing; if it is neither nil nor
t, move to the limit of search and return nil.
The optional fourth argument COUNT is a number that indicates the
search direction and the number of occurrences to search for. If it
is positive, search forward for COUNT successive occurrences; if it
is negative, search backward, instead of forward, for -COUNT
occurrences. A value of nil means the same as 1.
With COUNT positive/negative, the match found is the COUNTth/-COUNTth
one in the buffer located entirely after/before the origin of the
search.
Search case-sensitivity is determined by the value of the variable
`case-fold-search', which see.