Commit Graph

892 Commits (47770bd321c7034f7c5f6a7306cfc93865c96a3a)

Author SHA1 Message Date
Benno Schulenberg 6dcfcd11ce tweaks: rename two functions, to better describe what they do 2019-05-27 17:24:35 +02:00
Benno Schulenberg f21b094dad tweaks: condense a couple of comments, and reshuffle a line 2019-05-27 17:21:05 +02:00
Benno Schulenberg 98ffb19746 tweaks: stop checking for a NULL result from line_from_number()
No one ever reported seeing the message that was removed in commit
c039aaad one month ago, so most likely the code is correct and nano
never calls line_from_number() with a non-existent line number.
2019-05-24 19:08:29 +02:00
Benno Schulenberg 93edd12099 tweaks: rename a function, to be clearer and to stop using an old abbrev 2019-05-24 18:56:34 +02:00
Benno Schulenberg 9a475bf2d3 speller: don't crash when the spell-checked tempfile cannot be opened
This addresses https://savannah.gnu.org/bugs/?56361.
2019-05-24 17:31:35 +02:00
Benno Schulenberg 137c4467ef speller: ensure that a Shift-selected region is retained
For both an integrated and an external spell check, fake the Shift key
being held so that (when the cursor is moved by a changed length of a
word) a Shift-selected region is not unexpectedly cancelled.

This fixes https://savannah.gnu.org/bugs/?56365.
2019-05-24 12:30:07 +02:00
Benno Schulenberg e3e81879b1 tweaks: condense the setup of the two signal handlers for Ctrl+C
Don't bother checking for an error from sigaction(), because the only
things it could error out for is when it is passed an invalid signal
(which SIGINT isn't) or oldaction/newaction would point to memory that
is outside of nano's control (which is obviously not the case).

Also, the setup of signal handlers during startup does not check for
errors, so why do it here?
2019-05-24 10:48:03 +02:00
Benno Schulenberg 12bf3bfce4 feedback: don't clear off possible error messages after a spell check
If functions deeper down would put up some message on the status bar,
it should not be cleared.  The chance that messages from a spell-check
program stay onscreen is minute: the edit window is fully refreshed,
the status bar is fully drawn, and the help lines (if there are any)
are redrawn.  Only the title bar is not refreshed, but the chance that
an error message has spilled onto the top row...  And anyway, the
spell checker should not print any error messages at all.
2019-05-21 19:42:44 +02:00
Benno Schulenberg 20635b40f4 tweaks: merge two very similar functions into a single one 2019-05-21 18:56:13 +02:00
Benno Schulenberg 2669d3623d tweaks: set a boolean directly, instead of using a function call 2019-05-21 12:15:37 +02:00
Benno Schulenberg 3c959fd038 tweaks: drop a useless tidying-up call, as spelling does not use regexes
The integrated spell checker does not use regular expressions, and
'refresh_needed' is set to TRUE anyway, so the tidy_up_after_search()
call there is effectively a no-op.
2019-05-06 10:57:45 +02:00
Benno Schulenberg 9bc6bc83c0 tweaks: rename two variables, for more contrast 2019-05-01 19:14:06 +02:00
Benno Schulenberg d4468b2def tweaks: condense a comment and reshuffle a couple of lines 2019-05-01 19:10:56 +02:00
Benno Schulenberg 404a6862cd tweaks: really don't bother renumbering the lines in the cutbuffer
The lines from the cutbuffer will be renumbered when it matters: when
they get pasted.

The only place that used the numbering of (a copy of) the cutbuffer
(the updating of an undo item) already iterates through its lines.
Just add a counter there instead of making use of the line numbers.
2019-05-01 13:09:22 +02:00
Benno Schulenberg 85fc41470b tweaks: stop passing 'cutbuffer' and 'cutbottom' back and forth
All extractions are done into the cutbuffer, so it is pointless to pass
'cutbuffer' and 'cutbottom' in and back out as parameters all the time.
Just use those global variables directly.

Also, rename the function as there is no longer a buffer among its
parameters.
2019-05-01 11:33:37 +02:00
Benno Schulenberg 2b9dd6c574 tweaks: don't bother saving and restoring 'cutbottom' all the time
The 'cutbottom' variable is only ever used when cutting or copying
consecutive lines: for appending the current line to the already
existing lines in the cutbuffer.  As soon as some other operation
is performed, 'cutbottom' becomes irrelevant, it could be set to
anything, it doesn't matter: the pasting of the cutbuffer does not
use the value of 'cutbottom', nor does any other operation.
2019-05-01 11:19:14 +02:00
Benno Schulenberg 17aa9371b5 tweaks: rename a function, to better indicate what it does 2019-04-30 10:27:10 +02:00
Benno Schulenberg 37eccd3117 tweaks: rename a function, to be more fitting
Also, adjust some whitespace, for esthetics.
2019-04-28 11:01:51 +02:00
Benno Schulenberg 0b6889cbd8 tweaks: rename another function, to be distinct and fitting 2019-04-24 10:52:49 +02:00
Benno Schulenberg 00410d83fc tweaks: rename a function, to be distinct and fitting
It was hard to remember that the "pt" stood for "plus tabs", and the
"len" seemed to say it was about number of bytes instead of columns.
2019-04-24 10:52:35 +02:00
Benno Schulenberg fcad442d80 tweaks: declare a function as const and let its allocated string leak
Avoiding this leak is more trouble than it's worth: invocation_error()
will be called seldomly, and when it is called, the user will probably
quickly exit from nano to fix things.

Also declare the speller functions as const again, so they don't give
the impression that their result can be freed.

Suggested-by: Brand Huntsman <alpha@qzx.com>
2019-04-23 12:07:56 +02:00
Benno Schulenberg 34d22d3f00 wrapping: improve the persistence of the prepending behavior
Now you can have a look elsewhere in the buffer (and even delete
or paste stuff there) and when you return to the original line
and continue typing, any spillover from automatic hard-wrapping
will spill over onto the same line it spilled over to before.

You can even switch to a different buffer and return and continue
typing, and stuff will still spill over to the same line.

In the bargain, this gets rid of a bit of flag-resetting code
that was run for many keystrokes, in most cases needlessly.

This addresses https://savannah.gnu.org/bugs/?56189.
2019-04-23 10:20:12 +02:00
Benno Schulenberg 1326af7eae tweaks: drop an unneeded saving and restoring of a variable
Since commit aa1ae0a1, from three years ago, do_next_word() no longer
changes 'placewewant'.
2019-04-23 10:18:46 +02:00
Benno Schulenberg 493f215513 speller: do not crash by trying to free something that cannot be freed
Most of the returned error messages are fixed strings, not allocated
strings.

This fixes https://savannah.gnu.org/bugs/?56188.
Reported-by: Aliaksei Sakovets <alexeysakovets@gmail.com>

Bug existed since version 4.1, commit f645009a.
2019-04-22 11:32:03 +02:00
Benno Schulenberg 723451a5ce tweaks: adjust a few comments and some indentation 2019-04-21 11:58:08 +02:00
Benno Schulenberg 326e41d799 tweaks: elide an unneeded intermediate variable 2019-04-21 11:41:54 +02:00
Benno Schulenberg 3ce74eb8fe wrapping: compute the width of a succeeding line in the correct manner
Its number of columns needs to be computed, not its number of bytes.
2019-04-21 11:39:06 +02:00
Benno Schulenberg ec4883b6a9 tweaks: remove an unneeded condition
The 'prepend_wrap' flag gets set to TRUE only when there is a next line,
and it can remain TRUE only when the cursor stays on the current line.
2019-04-21 11:26:00 +02:00
Benno Schulenberg e8f69e40d1 wrapping: add a missing space only when the remainder will be prepended
When automatic hard-wrapping causes some piece of a line to be pushed
to the next line, then a separating space needs to be added at the tail
of this piece only when this piece actually gets prepended.

This fixes https://savannah.gnu.org/bugs/?56185.

Bug existed since version 2.9.2, commit 29f7654a.
2019-04-21 10:35:11 +02:00
Benno Schulenberg 297fb013cb wrapping: trim any trailing blanks when cursor goes to next line
When typing a space causes both the succeeding word and the cursor to
be pushed to the next line, then this space (and any contiguous ones)
does need to be snipped (when --trimblanks is in effect).

This fixes https://savannah.gnu.org/bugs/?56180.

Bug existed since version 2.9.3, commit 91073be4.
2019-04-21 09:31:18 +02:00
Benno Schulenberg 192a303e40 tweaks: condense and improve a handful of comments 2019-04-20 14:00:07 +02:00
Benno Schulenberg dcec8a4112 tweaks: rename a variable, for a little more meaning 2019-04-19 10:10:14 +02:00
Benno Schulenberg 5316f5078f tweaks: elide an unneeded variable
After a line break, the preceding line is readily available through
the 'prev' element.
2019-04-19 10:06:57 +02:00
Benno Schulenberg 286c877853 tweaks: elide an unneeded parameter, as the function already assumes it
The do_wrap() function always gets 'openfile->current' as parameter,
and, internally, it assumes that it is handling the current line.
2019-04-19 09:47:21 +02:00
Benno Schulenberg c039aaad9d tweaks: remove several unneeded bad-state checks and their messages
No one ever reported seeing any of them, and each of these checks
has been there for at least a year.
2019-04-14 19:38:04 +02:00
Benno Schulenberg baca8bb19e indenting, commenting: ensure a partial line stays displayed properly
Do the same as in the previous commit: re-evaluate the start of the
viewport when lines that are located above this viewport may have
changed.  This is relevant when softwrap is on.
2019-04-13 11:51:14 +02:00
Benno Schulenberg 1c707d4f99 unindent: ensure that a partial line gets displayed properly afterwards
When only the trailing chunk of a line is displayed on the top row of
the screen, and the unindenting of this line leads to a reduction in
the number of chunks, then the starting point of the viewport needs
to be re-evaluated.  For simplicity, do this always when something is
unindented.

This fixes https://savannah.gnu.org/bugs/?56102.
Reported-by: Devin Hussey <husseydevin@gmail.com>

Bug existed since around version 2.9.2.
2019-04-13 11:36:53 +02:00
Benno Schulenberg d83a8eb359 justify: correctly compute the number of lines to take, to avoid a crash
When the file starts with one or more blank lines, the first paragraph
doesn't start on line 1.

This fixes https://savannah.gnu.org/bugs/?56117.

Bug existed since version 4.0, commit ac8bd2a2.
2019-04-11 16:11:49 +02:00
Benno Schulenberg 98cc39e8e5 tweaks: reshuffle some lines, to elide an 'if' 2019-04-11 15:12:04 +02:00
Benno Schulenberg b20fadd604 tweaks: free the copy of a linter message in all cases [valgrind] 2019-04-11 14:17:32 +02:00
Benno Schulenberg cdf0f8e68a tweaks: drop two 'const' qualifiers, to silence the compiler 2019-04-11 12:31:50 +02:00
Benno Schulenberg f645009a5e tweaks: free the result string from an invocation error [coverity] 2019-04-11 10:05:39 +02:00
Benno Schulenberg 2b2736d41a tweaks: free some memory before a possible error exit [coverity] 2019-04-11 09:55:18 +02:00
Benno Schulenberg 5a6029a938 tweaks: rename some variables, for more contrast and to match others 2019-04-11 09:38:06 +02:00
Benno Schulenberg 8d272db4e6 tweaks: rename two variables, for more contrast 2019-04-11 09:14:30 +02:00
Benno Schulenberg 70885d0f9a tweaks: use a signed type for a result that could be negative [coverity] 2019-04-11 09:11:53 +02:00
Benno Schulenberg 5601b9a66b tweaks: switch back from checking FINAL_NEWLINE to checking NO_NEWLINES
This effectively reverts commit b6a76223 from a good two months ago.
2019-04-07 08:50:35 +02:00
Benno Schulenberg fb04dff6d7 tweaks: don't bother reallocating the data when a line gets hard-wrapped
This will waste some memory, but... if the user keeps editing, she is
likely to revisit the line and the data will get reallocated soon enough.
2019-04-04 14:44:44 +02:00
Benno Schulenberg c224ea3ce7 tweaks: reshuffle two lines, and reword a comment 2019-04-04 14:23:07 +02:00
Benno Schulenberg 2a2fe7208a tweaks: condense a bit of copying code 2019-04-04 14:11:52 +02:00