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  1. 03 8月, 2021 2 次提交
  3. 28 7月, 2021 1 次提交
  5. 27 7月, 2021 3 次提交
  7. 26 7月, 2021 3 次提交
  9. 23 7月, 2021 1 次提交
  11. 20 7月, 2021 1 次提交
  13. 14 7月, 2021 5 次提交
  15. 13 7月, 2021 6 次提交
    • D
      vi: somewhat more readable code, no logic changes · 36feb268
      由 Denys Vlasenko 提交于 
      Signed-off-by: NDenys Vlasenko <vda.linux@googlemail.com>
      36feb268
    • R
      vi: allow delimiter in ':s' to be escaped · 27592014
      由 Ron Yorston 提交于 
      When regular expressions are allowed in search commands it becomes
possible to escape the delimiter in search/replace commands.  For
example, this command will replace '/abc' with '/abc/':

   :s/\/abc/\/abc\//g

The code to split the command into 'find' and 'replace' strings
should allow for this possibility.

VI_REGEX_SEARCH isn't enabled by default.  When it is:

function                                             old     new   delta
strchr_backslash                                       -      38     +38
colon                                               4378    4373      -5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 38/-5)              Total: 33 bytes
Signed-off-by: NRon Yorston <rmy@pobox.com>
Signed-off-by: NDenys Vlasenko <vda.linux@googlemail.com>
      27592014
    • D
      vi: allow regular expressions in ':s' commands · 95ac4a48
      由 Denys Vlasenko 提交于 
      BusyBox vi has never supported the use of regular expressions in
search/replace (':s') commands.  Implement this using GNU regex
when VI_REGEX_SEARCH is enabled.

The implementation:

- uses basic regular expressions, to match those used in the search
  command;

- only supports substitution of back references ('\0' - '\9') in the
  replacement string.  Any other character following a backslash is
  treated as that literal character.

VI_REGEX_SEARCH isn't enabled in the default build.  In that case:

function                                             old     new   delta
colon                                               4036    4033      -3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3)               Total: -3 bytes

When VI_REGEX_SEARCH is enabled:

function                                             old     new   delta
colon                                               4036    4378    +342
.rodata                                           108207  108229     +22
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 364/0)             Total: 364 bytes

v2: Rebase.  Code shrink.  Ensure empty replacement string is null terminated.
Signed-off-by: NAndrey Dobrovolsky <andrey.dobrovolsky.odessa@gmail.com>
Signed-off-by: NRon Yorston <rmy@pobox.com>
Signed-off-by: NDenys Vlasenko <vda.linux@googlemail.com>
      95ac4a48
    • R
      vi: improve handling of anchored searches · c76c7874
      由 Ron Yorston 提交于 
      Suppose we search for a git conflict marker '<<<<<<< HEAD' using
the command '/^<<<'.  Using 'n' to go to the next match finds
'<<<' on the current line, apparently ignoring the '^' anchor.

Set a flag in the compiled regular expression to indicate that the
start of the string should not be considered a beginning-of-line
anchor.  An exception has to be made when the search starts from
the beginning of the file.  Make a similar change for end-of-line
anchors.

This doesn't affect a default build with VI_REGEX_SEARCH disabled.
When it's enabled:

function                                             old     new   delta
char_search                                          247     285     +38
Signed-off-by: NRon Yorston <rmy@pobox.com>
Signed-off-by: NDenys Vlasenko <vda.linux@googlemail.com>
      c76c7874
    • R
      vi: use basic regular expressions for search · 2916443a
      由 Ron Yorston 提交于 
      Both traditional vi and vim use basic regular expressions for
search.  Also, they don't allow matches to extend across line
endings.  Thus with the file:

   123
   234

the search '/2.*4$' should find the second '2', not the first.

Make BusyBox vi do the same.

Whether or not VI_REGEX_SEARCH is enabled:

function                                             old     new   delta
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/0 up/down: 0/0)                 Total: 0 bytes
Signed-off-by: NAndrey Dobrovolsky <andrey.dobrovolsky.odessa@gmail.com>
Signed-off-by: NRon Yorston <rmy@pobox.com>
Signed-off-by: NDenys Vlasenko <vda.linux@googlemail.com>
      2916443a
    • R
      vi: allow 'gg' to specify a range · b50ac07c
      由 Ron Yorston 提交于 
      Commit 7b93e317 (vi: enable 'dG' command. Closes 11801) allowed
'G' to be used as a range specifier for change/yank/delete
operations.

Add similar support for 'gg'.  This requires setting the 'cmd_error'
flag if 'g' is followed by any character other than another 'g'.

function                                             old     new   delta
do_cmd                                              4852    4860      +8
.rodata                                           108179  108180      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 9/0)                 Total: 9 bytes
Signed-off-by: NRon Yorston <rmy@pobox.com>
Signed-off-by: NDenys Vlasenko <vda.linux@googlemail.com>
      b50ac07c
  17. 12 7月, 2021 3 次提交
  19. 11 7月, 2021 5 次提交
  21. 04 7月, 2021 1 次提交
  23. 03 7月, 2021 9 次提交