// Parse reference. Assumes string begins with '[' character.
// Modify refmap if a reference is encountered.
// Return 0 if no reference found, otherwise position of subject
// after reference is parsed.
int cmark_parse_reference_inline(cmark_strbuf *input, cmark_reference_map *refmap)
{
subject subj;
cmark_chunk lab;
cmark_chunk url;
cmark_chunk title;
int matchlen = 0;
int beforetitle;
subject_from_buf(&subj, input, NULL);
// parse label:
if (!link_label(&subj, &lab))
return 0;
// colon:
if (peek_char(&subj) == ':') {
advance(&subj);
} else {
return 0;
}
// parse link url:
spnl(&subj);
matchlen = scan_link_url(&subj.input, subj.pos);
if (matchlen) {
url = cmark_chunk_dup(&subj.input, subj.pos, matchlen);
subj.pos += matchlen;
} else {
return 0;
}
// parse optional link_title
beforetitle = subj.pos;
spnl(&subj);
matchlen = scan_link_title(&subj.input, subj.pos);
if (matchlen) {
title = cmark_chunk_dup(&subj.input, subj.pos, matchlen);
subj.pos += matchlen;
} else {
subj.pos = beforetitle;
title = cmark_chunk_literal("");
}
// parse final spaces and newline:
while (peek_char(&subj) == ' ') {
advance(&subj);
}
if (peek_char(&subj) == '\n') {
advance(&subj);
} else if (peek_char(&subj) != 0) {
return 0;
}
// insert reference into refmap
cmark_reference_create(refmap, &lab, &url, &title);
return subj.pos;
}
// Parse inlines from parent's string_content, adding as children of parent.
extern void cmark_parse_inlines(cmark_node* parent, cmark_reference_map *refmap, int options)
{
subject subj;
subject_from_buf(&subj, &parent->string_content, refmap);
while (!is_eof(&subj) && parse_inline(&subj, parent, options)) ;
process_emphasis(&subj, NULL);
}
// Parse inlines from parent's string_content, adding as children of parent.
extern void cmark_parse_inlines(cmark_mem *mem, cmark_node *parent,
cmark_reference_map *refmap, int options) {
subject subj;
subject_from_buf(mem, &subj, &parent->content, refmap);
cmark_chunk_rtrim(&subj.input);
while (!is_eof(&subj) && parse_inline(&subj, parent, options))
;
process_emphasis(&subj, NULL);
// free bracket and delim stack
while (subj.last_delim) {
remove_delimiter(&subj, subj.last_delim);
}
while (subj.last_bracket) {
pop_bracket(&subj);
}
}
// Parse reference. Assumes string begins with '[' character.
// Modify refmap if a reference is encountered.
// Return 0 if no reference found, otherwise position of subject
// after reference is parsed.
bufsize_t cmark_parse_reference_inline(cmark_mem *mem, cmark_strbuf *input,
cmark_reference_map *refmap) {
subject subj;
cmark_chunk lab;
cmark_chunk url;
cmark_chunk title;
bufsize_t matchlen = 0;
bufsize_t beforetitle;
subject_from_buf(mem, &subj, input, NULL);
// parse label:
if (!link_label(&subj, &lab) || lab.len == 0)
return 0;
// colon:
if (peek_char(&subj) == ':') {
advance(&subj);
} else {
return 0;
}
// parse link url:
spnl(&subj);
if ((matchlen = manual_scan_link_url(&subj.input, subj.pos, &url)) > -1 &&
url.len > 0) {
subj.pos += matchlen;
} else {
return 0;
}
// parse optional link_title
beforetitle = subj.pos;
spnl(&subj);
matchlen = scan_link_title(&subj.input, subj.pos);
if (matchlen) {
title = cmark_chunk_dup(&subj.input, subj.pos, matchlen);
subj.pos += matchlen;
} else {
subj.pos = beforetitle;
title = cmark_chunk_literal("");
}
// parse final spaces and newline:
skip_spaces(&subj);
if (!skip_line_end(&subj)) {
if (matchlen) { // try rewinding before title
subj.pos = beforetitle;
skip_spaces(&subj);
if (!skip_line_end(&subj)) {
return 0;
}
} else {
return 0;
}
}
// insert reference into refmap
cmark_reference_create(refmap, &lab, &url, &title);
return subj.pos;
}