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COMMON: FORMATS: Extend Markdown images with {} attributes

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Eugene Sandulenko 2023-10-31 01:48:39 +01:00
parent 4afcad492a
commit 5a30cb60aa
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GPG Key ID: 014D387312D34F08
1 changed files with 31 additions and 2 deletions
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33
common/formats/markdown.cpp
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@ -824,11 +824,12 @@ static size_t char_autolink_url(SDDataBuffer *ob, SDMarkdown *rndr, byte *data,
/* char_link • '[': parsing a link or an image */
static size_t char_link(SDDataBuffer *ob, SDMarkdown *rndr, byte *data, size_t offset, size_t size) {
int is_img = (offset && data[-1] == '!'), level;
size_t i = 1, txt_e, link_b = 0, link_e = 0, title_b = 0, title_e = 0;
size_t i = 1, txt_e, link_b = 0, link_e = 0, title_b = 0, title_e = 0, ext_b = 0, ext_e = 0;
SDDataBuffer *content = 0;
SDDataBuffer *link = 0;
SDDataBuffer *title = 0;
SDDataBuffer *u_link = 0;
SDDataBuffer *ext = 0;
size_t org_work_size = rndr->_work_bufs[BUFFER_SPAN].size;
int text_has_nl = 0, ret = 0;
int in_title = 0, qtype = 0;
@ -925,7 +926,30 @@ static size_t char_link(SDDataBuffer *ob, SDMarkdown *rndr, byte *data, size_t o
if (data[link_b] == '<') link_b++;
if (data[link_e - 1] == '>') link_e--;
/* building escaped link and title */
/* optional image extension */
if (is_img && i + 1 < size && data[i + 1] == '{') {
/* skipping initial whitespace and opening bracket */
i += 2;
while (i < size && _isspace(data[i]))
i++;
ext_b = i;
/* looking for extension end: '}" ) */
while (i < size && data[i] != '}')
i++;
if (i >= size) goto cleanup;
/* skipping whitespaces after extension */
ext_e = i - 1;
while (ext_e > ext_b && _isspace(data[ext_e]))
ext_e--;
ext_e++;
}
/* building escaped link, title and extension*/
if (link_e > link_b) {
link = rndr_newbuf(rndr, BUFFER_SPAN);
sd_bufput(link, data + link_b, link_e - link_b);
@ -936,6 +960,11 @@ static size_t char_link(SDDataBuffer *ob, SDMarkdown *rndr, byte *data, size_t o
sd_bufput(title, data + title_b, title_e - title_b);
}
if (ext_e > ext_b) {
ext = rndr_newbuf(rndr, BUFFER_SPAN);
sd_bufput(ext, data + ext_b, ext_e - ext_b);
}
i++;
}