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vkd3d-shader/fx: Add a helper to escape printed strings.

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Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
This commit is contained in:
Nikolay Sivov
2025-03-14 00:11:55 +01:00
committed by Henri Verbeet
parent fc4316f664
commit fb5d53bf57
Notes: Henri Verbeet 2025-03-17 15:29:01 +01:00 
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1418
4 changed files with 79 additions and 50 deletions
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54
libs/vkd3d-shader/vkd3d_shader_main.c
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@@ -163,6 +163,60 @@ int vkd3d_string_buffer_print_f64(struct vkd3d_string_buffer *buffer, double d)
return ret;
}
static char get_escape_char(char c)
{
switch (c)
{
case '"':
case '\\':
return c;
case '\t':
return 't';
case '\n':
return 'n';
case '\v':
return 'v';
case '\f':
return 'f';
case '\r':
return 'r';
default:
return 0;
}
}
int vkd3d_string_buffer_print_string_escaped(struct vkd3d_string_buffer *buffer, const char *s, size_t len)
{
size_t content_size, start, i;
int ret;
char c;
content_size = buffer->content_size;
for (i = 0, start = 0; i < len; ++i)
{
if ((c = get_escape_char(s[i])))
{
if ((ret = vkd3d_string_buffer_printf(buffer, "%.*s\\%c", (int)(i - start), &s[start], c)) < 0)
goto fail;
start = i + 1;
}
else if (!isprint(s[i]))
{
if ((ret = vkd3d_string_buffer_printf(buffer, "%.*s\\%03o",
(int)(i - start), &s[start], (uint8_t)s[i])) < 0)
goto fail;
start = i + 1;
}
}
if ((ret = vkd3d_string_buffer_printf(buffer, "%.*s", (int)(len - start), &s[start])) < 0)
goto fail;
return ret;
fail:
buffer->content_size = content_size;
return ret;
}
void vkd3d_string_buffer_trace_(const struct vkd3d_string_buffer *buffer, const char *function)
{
vkd3d_shader_trace_text_(buffer->buffer, buffer->content_size, function);