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particle/string: don’t try to call c32len() on a NULL string

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Daniel Eklöf 2022-06-13 12:07:24 +02:00
parent 1b03bd6bc0
commit 605a6a9ede
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2 changed files with 3 additions and 1 deletions
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2
CHANGELOG.md
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@ -100,6 +100,8 @@
device yambar is already tracking ([#177][177]).
* Crash when a particle is “too wide”, and tries to render outside the
bar ([#198][198]).
* string: crash when failing to convert string to UTF-32.
[169]: https://codeberg.org/dnkl/yambar/issues/169
[172]: https://codeberg.org/dnkl/yambar/issues/172

2
particles/string.c
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@ -176,7 +176,7 @@ instantiate(const struct particle *particle, const struct tag_set *tags)
/* Not in cache - we need to rasterize it. First, convert to char32_t */
wtext = ambstoc32(text);
size_t chars = c32len(wtext);
size_t chars = wtext != NULL ? c32len(wtext) : 0;
/* Truncate, if necessary */
if (p->max_len > 0 && chars > p->max_len) {