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Added stream_till and stream_while helpers

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Allows more abstract movement around the stream.
This commit is contained in:
Aryadev Chavali
2026-01-21 09:27:12 +00:00
parent 88c9d01677
commit dae6382f4b
2 changed files with 36 additions and 1 deletions
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28
stream.c
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@@ -339,3 +339,31 @@ sv_t stream_substr_abs(stream_t *stream, u64 index, u64 size)
return SV(NULL, 0);
}
}
sv_t stream_till(stream_t *stream, const char *str)
{
if (stream_eoc(stream))
return SV(NULL, 0);
u64 current_position = stream->position;
for (char c = stream_peek(stream); c != '\0' && strchr(str, c) == NULL;
c = stream_next(stream))
continue;
u64 size = stream->position - current_position;
if (size == 0)
return SV(NULL, 0);
return stream_substr_abs(stream, current_position, size - 1);
}
sv_t stream_while(stream_t *stream, const char *str)
{
if (stream_eoc(stream))
return SV(NULL, 0);
u64 current_position = stream->position;
for (char c = stream_peek(stream); c != '\0' && strchr(str, c);
c = stream_next(stream))
continue;
u64 size = stream->position - current_position;
if (size == 0)
return SV(NULL, 0);
return stream_substr_abs(stream, current_position, size - 1);
}