char *cmark_render_xml(cmark_node *root, long options) { char *result; cmark_strbuf xml = GH_BUF_INIT; cmark_event_type ev_type; cmark_node *cur; struct render_state state = { &xml, 0 }; if (options & CMARK_OPT_NORMALIZE) { cmark_consolidate_text_nodes(root); } cmark_iter *iter = cmark_iter_new(root); cmark_strbuf_puts(state.xml, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"); cmark_strbuf_puts(state.xml, "<!DOCTYPE CommonMark SYSTEM \"CommonMark.dtd\">\n"); while ((ev_type = cmark_iter_next(iter)) != CMARK_EVENT_DONE) { cur = cmark_iter_get_node(iter); S_render_node(cur, ev_type, &state, options); } result = (char *)cmark_strbuf_detach(&xml); cmark_iter_free(iter); cmark_strbuf_free(&xml); return result; }
static cmark_node *postprocess(cmark_syntax_extension *ext, cmark_parser *parser, cmark_node *root) { cmark_iter *iter; cmark_event_type ev; cmark_node *node; bool in_link = false; cmark_consolidate_text_nodes(root); iter = cmark_iter_new(root); while ((ev = cmark_iter_next(iter)) != CMARK_EVENT_DONE) { node = cmark_iter_get_node(iter); if (in_link) { if (ev == CMARK_EVENT_EXIT && node->type == CMARK_NODE_LINK) { in_link = false; } continue; } if (ev == CMARK_EVENT_ENTER && node->type == CMARK_NODE_LINK) { in_link = true; continue; } if (ev == CMARK_EVENT_ENTER && node->type == CMARK_NODE_TEXT) { postprocess_text(parser, node, 0); } } cmark_iter_free(iter); return root; }
static bool is_autolink(cmark_node *node) { cmark_chunk *title; cmark_chunk *url; cmark_node *link_text; char *realurl; int realurllen; if (node->type != CMARK_NODE_LINK) { return false; } url = &node->as.link.url; if (url->len == 0 || scan_scheme(url, 0) == 0) { return false; } title = &node->as.link.title; // if it has a title, we can't treat it as an autolink: if (title->len > 0) { return false; } link_text = node->first_child; cmark_consolidate_text_nodes(link_text); realurl = (char *)url->data; realurllen = url->len; if (strncmp(realurl, "mailto:", 7) == 0) { realurl += 7; realurllen -= 7; } return (realurllen == link_text->as.literal.len && strncmp(realurl, (char *)link_text->as.literal.data, link_text->as.literal.len) == 0); }
static link_type get_link_type(cmark_node *node) { size_t title_len, url_len; cmark_node *link_text; char *realurl; int realurllen; bool isemail = false; if (node->type != CMARK_NODE_LINK) { return NO_LINK; } const char *url = cmark_node_get_url(node); cmark_chunk url_chunk = cmark_chunk_literal(url); if (url && *url == '#') { return INTERNAL_LINK; } url_len = strlen(url); if (url_len == 0 || scan_scheme(&url_chunk, 0) == 0) { return NO_LINK; } const char *title = cmark_node_get_title(node); title_len = strlen(title); // if it has a title, we can't treat it as an autolink: if (title_len == 0) { link_text = node->first_child; cmark_consolidate_text_nodes(link_text); if (!link_text) return NO_LINK; realurl = (char *)url; realurllen = (int)url_len; if (strncmp(realurl, "mailto:", 7) == 0) { realurl += 7; realurllen -= 7; isemail = true; } if (realurllen == link_text->as.literal.len && strncmp(realurl, (char *)link_text->as.literal.data, link_text->as.literal.len) == 0) { if (isemail) { return EMAIL_AUTOLINK; } else { return URL_AUTOLINK; } } } return NORMAL_LINK; }
cmark_node *cmark_parser_finish(cmark_parser *parser) { if (parser->linebuf->size) { S_process_line(parser, parser->linebuf->ptr, parser->linebuf->size); cmark_strbuf_clear(parser->linebuf); } finalize_document(parser); if (parser->options & CMARK_OPT_NORMALIZE) { cmark_consolidate_text_nodes(parser->root); } cmark_strbuf_free(parser->curline); #if CMARK_DEBUG_NODES if (cmark_node_check(parser->root, stderr)) { abort(); } #endif return parser->root; }