// Assumes the subject has a c at the current position.
static cmark_node* handle_delim(subject* subj, unsigned char c, bool smart)
{
int numdelims;
cmark_node * inl_text;
bool can_open, can_close;
cmark_chunk contents;
numdelims = scan_delims(subj, c, &can_open, &can_close);
if (c == '\'' && smart) {
contents = cmark_chunk_literal(RIGHTSINGLEQUOTE);
} else if (c == '"' && smart) {
contents = cmark_chunk_literal(can_close ? RIGHTDOUBLEQUOTE : LEFTDOUBLEQUOTE);
} else {
contents = cmark_chunk_dup(&subj->input, subj->pos - numdelims, numdelims);
}
inl_text = make_str(contents);
if ((can_open || can_close) &&
(!(c == '\'' || c == '"') || smart)) {
push_delimiter(subj, c, can_open, can_close, inl_text);
}
return inl_text;
}
// Parse strong/emph or a fallback.
// Assumes the subject has '_' or '*' at the current position.
static cmark_node* handle_strong_emph(subject* subj, unsigned char c)
{
int numdelims;
cmark_node * inl_text;
bool can_open, can_close;
numdelims = scan_delims(subj, c, &can_open, &can_close);
inl_text = make_str(cmark_chunk_dup(&subj->input, subj->pos - numdelims, numdelims));
if (can_open || can_close) {
push_delimiter(subj, c, can_open, can_close, inl_text);
}
return inl_text;
}
// Parse an inline, advancing subject, and add it as a child of parent.
// Return 0 if no inline can be parsed, 1 otherwise.
static int parse_inline(subject* subj, cmark_node * parent, int options)
{
cmark_node* new_inl = NULL;
cmark_chunk contents;
unsigned char c;
int endpos;
c = peek_char(subj);
if (c == 0) {
return 0;
}
switch(c) {
case '\n':
new_inl = handle_newline(subj);
break;
case '`':
new_inl = handle_backticks(subj);
break;
case '\\':
new_inl = handle_backslash(subj);
break;
case '&':
new_inl = handle_entity(subj);
break;
case '<':
new_inl = handle_pointy_brace(subj);
break;
case '*':
case '_':
case '\'':
case '"':
new_inl = handle_delim(subj, c, options & CMARK_OPT_SMART);
break;
case '-':
new_inl = handle_hyphen(subj, options & CMARK_OPT_SMART);
break;
case '.':
new_inl = handle_period(subj, options & CMARK_OPT_SMART);
break;
case '[':
advance(subj);
new_inl = make_str(cmark_chunk_literal("["));
push_delimiter(subj, '[', true, false, new_inl);
break;
case ']':
new_inl = handle_close_bracket(subj, parent);
break;
case '!':
advance(subj);
if (peek_char(subj) == '[') {
advance(subj);
new_inl = make_str(cmark_chunk_literal("!["));
push_delimiter(subj, '!', false, true, new_inl);
} else {
new_inl = make_str(cmark_chunk_literal("!"));
}
break;
default:
endpos = subject_find_special_char(subj, options);
contents = cmark_chunk_dup(&subj->input, subj->pos, endpos - subj->pos);
subj->pos = endpos;
// if we're at a newline, strip trailing spaces.
if (peek_char(subj) == '\n') {
cmark_chunk_rtrim(&contents);
}
new_inl = make_str(contents);
}
if (new_inl != NULL) {
cmark_node_append_child(parent, new_inl);
}
return 1;
}