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[xml] parse_table_attributes
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Witold Filipczyk
parent
94a5288336
commit
a2620814dd
@ -49,6 +49,208 @@
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#include <libxml++/libxml++.h>
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static void
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get_bordercolor2(struct source_renderer *renderer, void *no, color_T *rgb)
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{
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struct html_context *html_context = renderer->html_context;
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if (!use_document_fg_colors(html_context->options))
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return;
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xmlpp::Element *node = no;
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std::string color = node->get_attribute_value("bordercolor");
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if (color == "") {
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color = node->get_attribute_value("bordercolorlight");
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}
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if (color == "") {
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color = node->get_attribute_value("bordercolordark");
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}
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if (color == "") {
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return;
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}
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char *at = memacpy(color.c_str(), color.size());
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if (!at) return;
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decode_color(at, strlen(at), rgb);
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mem_free(at);
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}
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static void
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tags_set_table_frame(struct source_renderer *renderer, void *no, struct table *table)
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{
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struct html_context *html_context = renderer->html_context;
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char *al;
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if (!table->border) {
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table->frame = TABLE_FRAME_VOID;
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return;
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}
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table->frame = TABLE_FRAME_BOX;
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xmlpp::Element *node = no;
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std::string frame_value = node->get_attribute_value("frame");
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al = memacpy(frame_value.c_str(), frame_value.size());
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if (!al) return;
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if (!c_strcasecmp(al, "void")) table->frame = TABLE_FRAME_VOID;
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else if (!c_strcasecmp(al, "above")) table->frame = TABLE_FRAME_ABOVE;
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else if (!c_strcasecmp(al, "below")) table->frame = TABLE_FRAME_BELOW;
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else if (!c_strcasecmp(al, "hsides")) table->frame = TABLE_FRAME_HSIDES;
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else if (!c_strcasecmp(al, "vsides")) table->frame = TABLE_FRAME_VSIDES;
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else if (!c_strcasecmp(al, "lhs")) table->frame = TABLE_FRAME_LHS;
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else if (!c_strcasecmp(al, "rhs")) table->frame = TABLE_FRAME_RHS;
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/* Following tests are useless since TABLE_FRAME_BOX is the default.
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* else if (!c_strcasecmp(al, "box")) table->frame = TABLE_FRAME_BOX;
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* else if (!c_strcasecmp(al, "border")) table->frame = TABLE_FRAME_BOX;
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*/
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mem_free(al);
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}
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static void
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tags_set_table_rules(struct source_renderer *renderer, void *no, struct table *table)
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{
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char *al;
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table->rules = table->border ? TABLE_RULE_ALL : TABLE_RULE_NONE;
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xmlpp::Element *node = no;
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std::string frame_value = node->get_attribute_value("rules");
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al = memacpy(frame_value.c_str(), frame_value.size());
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if (!al) return;
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if (!c_strcasecmp(al, "none")) table->rules = TABLE_RULE_NONE;
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else if (!c_strcasecmp(al, "groups")) table->rules = TABLE_RULE_GROUPS;
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else if (!c_strcasecmp(al, "rows")) table->rules = TABLE_RULE_ROWS;
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else if (!c_strcasecmp(al, "cols")) table->rules = TABLE_RULE_COLS;
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else if (!c_strcasecmp(al, "all")) table->rules = TABLE_RULE_ALL;
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mem_free(al);
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}
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static void
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tags_get_align(struct source_renderer *renderer, void *no, int *a)
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{
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xmlpp::Element *node = no;
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std::string align_value = node->get_attribute_value("align");
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char *al = memacpy(align_value.c_str(), align_value.size());
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if (!al) return;
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if (!c_strcasecmp(al, "left")) *a = ALIGN_LEFT;
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else if (!c_strcasecmp(al, "right")) *a = ALIGN_RIGHT;
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else if (!c_strcasecmp(al, "center")) *a = ALIGN_CENTER;
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else if (!c_strcasecmp(al, "justify")) *a = ALIGN_JUSTIFY;
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else if (!c_strcasecmp(al, "char")) *a = ALIGN_RIGHT; /* NOT IMPLEMENTED */
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mem_free(al);
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}
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int
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tags_get_bgcolor(struct source_renderer *renderer, void *no, color_T *rgb)
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{
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struct html_context *html_context = renderer->html_context;
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if (!use_document_bg_colors(html_context->options))
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return -1;
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xmlpp::Element *node = no;
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std::string bgcolor_value = node->get_attribute_value("bgcolor");
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char *at = memacpy(bgcolor_value.c_str(), bgcolor_value.size());
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if (!at) return -1;
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int res = decode_color(at, strlen(at), rgb);
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mem_free(at);
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return res;
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}
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static void
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tags_parse_table_attributes(struct table *table, struct source_renderer *renderer, void *no, int real)
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{
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struct html_context *html_context = renderer->html_context;
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xmlpp::Element *node = no;
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std::string id_value = node->get_attribute_value("id");
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if (id_value != "") {
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table->fragment_id = memacpy(id_value.c_str(), id_value.size());
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}
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get_bordercolor2(renderer, no, &table->color.border);
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std::string width_value = node->get_attribute_value("width");
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char *width = memacpy(width_value.c_str(), width_value.size());
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table->width = get_width2(width, real, html_context);
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if (table->width == -1) {
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table->width = get_html_max_width();
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table->full_width = 1;
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}
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/* From http://www.w3.org/TR/html4/struct/tables.html#adef-border-TABLE
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* The following settings should be observed by user agents for
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* backwards compatibility.
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* Setting border="0" implies frame="void" and, unless otherwise
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* specified, rules="none".
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* Other values of border imply frame="border" and, unless otherwise
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* specified, rules="all".
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* The value "border" in the start tag of the TABLE element should be
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* interpreted as the value of the frame attribute. It implies
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* rules="all" and some default (non-zero) value for the border
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* attribute. */
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std::string border_value = node->get_attribute_value("border");
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if (border_value != "") {
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char *at = memacpy(border_value.c_str(), border_value.size());
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table->border = get_num2(at);
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}
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if (table->border == -1) {
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xmlpp::Attribute *attr = dynamic_cast<xmlpp::Attribute *>(node->get_attribute("border"));
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if (!attr) {
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attr = dynamic_cast<xmlpp::Attribute *>(node->get_attribute("rules"));
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}
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if (!attr) {
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attr = dynamic_cast<xmlpp::Attribute *>(node->get_attribute("frames"));
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}
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table->border = (attr != nullptr);
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}
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if (table->border) {
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int_upper_bound(&table->border, 2);
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std::string cellspacing_value = node->get_attribute_value("cellspacing");
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if (cellspacing_value != "") {
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char *at = memacpy(cellspacing_value.c_str(), cellspacing_value.size());
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table->cellspacing = get_num2(at);
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}
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int_bounds(&table->cellspacing, 1, 2);
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}
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tags_set_table_frame(renderer, no, table);
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/* TODO: cellpadding may be expressed as a percentage, this is not
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* handled yet. */
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std::string cellpadding_value = node->get_attribute_value("cellpadding");
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char *at = memacpy(cellpadding_value.c_str(), cellpadding_value.size());
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table->cellpadding = get_num2(at);
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if (table->cellpadding == -1) {
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table->vcellpadding = 0;
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table->cellpadding = !!table->border;
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} else {
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table->vcellpadding = (table->cellpadding >= HTML_CHAR_HEIGHT / 2 + 1);
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table->cellpadding = (table->cellpadding >= HTML_CHAR_WIDTH / 2 + 1);
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}
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tags_set_table_rules(renderer, no, table);
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table->align = par_elformat.align;
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tags_get_align(renderer, no, &table->align);
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table->color.background = par_elformat.color.background;
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tags_get_bgcolor(renderer, no, &table->color.background);
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}
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static struct table *
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tags_parse_table(struct source_renderer *renderer, int t, void *no)
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{
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