12
#define BUFFER_SIZE 100
14
// Functions to convert cmark_nodes to XML strings.
16
static void escape_xml(cmark_strbuf *dest, const unsigned char *source,
18
houdini_escape_html0(dest, source, length, 0);
26
static CMARK_INLINE void indent(struct render_state *state) {
28
for (i = 0; i < state->indent; i++) {
29
cmark_strbuf_putc(state->xml, ' ');
33
static int S_render_node(cmark_node *node, cmark_event_type ev_type,
34
struct render_state *state, int options) {
35
cmark_strbuf *xml = state->xml;
37
cmark_delim_type delim;
38
bool entering = (ev_type == CMARK_EVENT_ENTER);
39
char buffer[BUFFER_SIZE];
43
cmark_strbuf_putc(xml, '<');
44
cmark_strbuf_puts(xml, cmark_node_get_type_string(node));
46
if (options & CMARK_OPT_SOURCEPOS && node->start_line != 0) {
47
snprintf(buffer, BUFFER_SIZE, " sourcepos=\"%d:%d-%d:%d\"",
48
node->start_line, node->start_column, node->end_line,
50
cmark_strbuf_puts(xml, buffer);
56
case CMARK_NODE_DOCUMENT:
57
cmark_strbuf_puts(xml, " xmlns=\"http://commonmark.org/xml/1.0\"");
61
case CMARK_NODE_HTML_BLOCK:
62
case CMARK_NODE_HTML_INLINE:
63
cmark_strbuf_puts(xml, ">");
64
escape_xml(xml, node->as.literal.data, node->as.literal.len);
65
cmark_strbuf_puts(xml, "</");
66
cmark_strbuf_puts(xml, cmark_node_get_type_string(node));
70
switch (cmark_node_get_list_type(node)) {
71
case CMARK_ORDERED_LIST:
72
cmark_strbuf_puts(xml, " type=\"ordered\"");
73
snprintf(buffer, BUFFER_SIZE, " start=\"%d\"",
74
cmark_node_get_list_start(node));
75
cmark_strbuf_puts(xml, buffer);
76
delim = cmark_node_get_list_delim(node);
77
if (delim == CMARK_PAREN_DELIM) {
78
cmark_strbuf_puts(xml, " delim=\"paren\"");
79
} else if (delim == CMARK_PERIOD_DELIM) {
80
cmark_strbuf_puts(xml, " delim=\"period\"");
83
case CMARK_BULLET_LIST:
84
cmark_strbuf_puts(xml, " type=\"bullet\"");
89
snprintf(buffer, BUFFER_SIZE, " tight=\"%s\"",
90
(cmark_node_get_list_tight(node) ? "true" : "false"));
91
cmark_strbuf_puts(xml, buffer);
93
case CMARK_NODE_HEADING:
94
snprintf(buffer, BUFFER_SIZE, " level=\"%d\"", node->as.heading.level);
95
cmark_strbuf_puts(xml, buffer);
97
case CMARK_NODE_CODE_BLOCK:
98
if (node->as.code.info.len > 0) {
99
cmark_strbuf_puts(xml, " info=\"");
100
escape_xml(xml, node->as.code.info.data, node->as.code.info.len);
101
cmark_strbuf_putc(xml, '"');
103
cmark_strbuf_puts(xml, ">");
104
escape_xml(xml, node->as.code.literal.data, node->as.code.literal.len);
105
cmark_strbuf_puts(xml, "</");
106
cmark_strbuf_puts(xml, cmark_node_get_type_string(node));
109
case CMARK_NODE_CUSTOM_BLOCK:
110
case CMARK_NODE_CUSTOM_INLINE:
111
cmark_strbuf_puts(xml, " on_enter=\"");
112
escape_xml(xml, node->as.custom.on_enter.data,
113
node->as.custom.on_enter.len);
114
cmark_strbuf_putc(xml, '"');
115
cmark_strbuf_puts(xml, " on_exit=\"");
116
escape_xml(xml, node->as.custom.on_exit.data,
117
node->as.custom.on_exit.len);
118
cmark_strbuf_putc(xml, '"');
120
case CMARK_NODE_LINK:
121
case CMARK_NODE_IMAGE:
122
cmark_strbuf_puts(xml, " destination=\"");
123
escape_xml(xml, node->as.link.url.data, node->as.link.url.len);
124
cmark_strbuf_putc(xml, '"');
125
cmark_strbuf_puts(xml, " title=\"");
126
escape_xml(xml, node->as.link.title.data, node->as.link.title.len);
127
cmark_strbuf_putc(xml, '"');
132
if (node->first_child) {
134
} else if (!literal) {
135
cmark_strbuf_puts(xml, " /");
137
cmark_strbuf_puts(xml, ">\n");
139
} else if (node->first_child) {
142
cmark_strbuf_puts(xml, "</");
143
cmark_strbuf_puts(xml, cmark_node_get_type_string(node));
144
cmark_strbuf_puts(xml, ">\n");
150
char *cmark_render_xml(cmark_node *root, int options) {
151
return cmark_render_xml_with_mem(root, options, cmark_node_mem(root));
154
char *cmark_render_xml_with_mem(cmark_node *root, int options, cmark_mem *mem) {
156
cmark_strbuf xml = CMARK_BUF_INIT(mem);
157
cmark_event_type ev_type;
159
struct render_state state = {&xml, 0};
161
cmark_iter *iter = cmark_iter_new(root);
163
cmark_strbuf_puts(state.xml, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
164
cmark_strbuf_puts(state.xml,
165
"<!DOCTYPE document SYSTEM \"CommonMark.dtd\">\n");
166
while ((ev_type = cmark_iter_next(iter)) != CMARK_EVENT_DONE) {
167
cur = cmark_iter_get_node(iter);
168
S_render_node(cur, ev_type, &state, options);
170
result = (char *)cmark_strbuf_detach(&xml);
172
cmark_iter_free(iter);