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The Makefile used to suppress output (by using @), so this target made sense at
the time.
But the Makefile should be simple and make debugging with less abstractions or
fancy printing. The Makefile was made verbose and doesn't hide the build
output, so remove this target.
Prompted by a question on the mailing list about the options target.
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1. use `unsigned int` to store the codepoints, this avoids waste on
common case where `long` is 64bits. and POSIX guarantees `int` to be
at least 32bits so there's no risk of truncation.
2. since switching to `unsigned int` cuts down the memory requirement by
half, double the cache size from 64 to 128.
3. instead of a linear search, use a simple hash-table for O(1) lookups.
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When embedded into another window, dmenu will fail with the BadMatch
error if that window have not the same colormap/depth/visual as the
root window.
That happens because dmenu inherits the colormap/depth/visual from
its parent, but draws on a pixmap created based on the root window
using a GC created for the root window (see drw.c). A BadMatch will
occur when copying the content of the pixmap into dmenu's window.
A solution is to create dmenu's window inside root and then reparent
it if embeded.
See this mail[1] on ports@openbsd.org mailing list for context.
[1]: https://marc.info/?l=openbsd-ports&m=168072150814664&w=2
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Improves upon commit 32db2b125190d366be472ccb7cad833248696144
The getline() implementation often uses a more greedy way of allocating memory.
Using this buffer directly and forcing an allocation (by setting it to NULL)
would waste a bit of extra space, depending on the implementation of course.
Tested on musl libc and glibc.
The current glibc version allocates a minimum of 120 bytes per line.
For smaller lines musl libc seems less wasteful but still wastes a few bytes
per line.
On a dmenu_path listing on my system the memory usage was about 350kb (old) vs
30kb (new) on Void Linux glibc.
Side-note that getline() also reads NUL bytes in lines, while strdup() would
read until the NUL byte. Since dmenu reads text lines either is probably
fine(tm). Also rename junk to linesiz.
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Keep track of the amount of items (not a total buffer size), allocate an array of
new items. For now change BUFSIZ bytes to 256 * sizeof(struct item)).
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Maybe too obvious / redundant, but OK.
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according to the getline(3) documentation, the calling code needs to
free the buffer even if getline fails.
dmenu currently doesn't do that which results in a small leak in case of
failure (e.g when piped /dev/null)
$ ./dmenu < /dev/null
==8201==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 120 byte(s) in 1 object(s) allocated from:
#0 0x7f6bf5785ef7 in malloc
#1 0x7f6bf538ec84 in __getdelim
#2 0x405d0c in readstdin dmenu.c:557
moving `line = NULL` inside the loop body wasn't strictly necessary, but
IMO it makes it more apparent that `line` is getting cleared to NULL
after each successful iteration.
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* Increase the length of composed strings to the same limit as st (32 to 64 bytes).
* Initialize ksym to NoSymbol to be safe: currently this is not an issue though.
* Add comments to clarify the return values of XmbLookupString a bit.
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in libXft 2.3.5
https://gitlab.freedesktop.org/xorg/lib/libxft/-/blob/libXft-2.3.5/NEWS
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Reported by Santtu Lakkala <inz@inz.fi>, thanks!
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we already need to know the string length since `cursor` needs to be
adjusted.
so just calculate the length beforehand and use `memcpy` to copy exactly
as much as needed (as opposed to `strncpy` which always writes `n`
bytes).
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currently readstdin():
- fgets() into a local buffer,
- strchr() the buffer to eleminate the newline
- stdups() the buffer into items
a simpler way is to just use getline(3), which will do the allocation
for us; eliminating the need for stdup()-ing.
additionally getline returns back the amount of bytes read, which
eliminates the need for strchr()-ing to find the newline.
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Always use ~30% of the monitor width for the input in horizontal mode.
Patch adapted from NRK patches.
This also does not calculate inputw when using vertical mode anymore (because
the code is removed).
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