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Better logic to handle backslashes

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is_escaped actually counts backslashes instead of looking back one
character to determine whether a character is escaped. This handles
inputs like *Foo\\* correctly (as `<p><em>Foo\<em></p>`; would be
`<p>Foo\*</p>` previously).
This commit is contained in:
Tzu-ping Chung 2014-08-10 02:03:54 +08:00
parent c854481092
commit 2301e4caa2
1 changed files with 15 additions and 1 deletions
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16
src/document.c
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@ -465,6 +465,20 @@ parse_inline(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t si
} }
} }
/* is_escaped • returns whether special char at data[loc] is escaped by '\\' */
static int
is_escaped(uint8_t *data, size_t loc)
{
size_t i = loc;
while (i >= 1 && data[i - 1] == '\\')
i--;
/* odd numbers of backslashes escapes data[loc] */
if ((loc - i) % 2)
return 1;
return 0;
}
/* find_emph_char • looks for the next emph uint8_t, skipping other constructs */ /* find_emph_char • looks for the next emph uint8_t, skipping other constructs */
static size_t static size_t
find_emph_char(uint8_t *data, size_t size, uint8_t c) find_emph_char(uint8_t *data, size_t size, uint8_t c)
@ -479,7 +493,7 @@ find_emph_char(uint8_t *data, size_t size, uint8_t c)
return 0; return 0;
/* not counting escaped chars */ /* not counting escaped chars */
if (i && data[i - 1] == '\\') { if (is_escaped(data, i)) {
i++; continue; i++; continue;
} }