--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/html.cpp Fri Jan 31 22:11:04 2025 +0100
@@ -0,0 +1,154 @@
+/* Copyright 2025 Mike Becker. All rights reserved.
+*
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "html.h"
+
+#include <cstdio>
+
+namespace html {
+ static unsigned indentation;
+ static const char *tabs = "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t";
+ static void indent(int change = 0) {
+ indentation += change;
+ fwrite(tabs, 1, indentation, stdout);
+ }
+
+ static std::string encode(const std::string &data) {
+ std::string buffer;
+ buffer.reserve(data.size()+16);
+ for (const char &pos: data) {
+ switch (pos) {
+ case '&':
+ buffer.append("&");
+ break;
+ case '\"':
+ buffer.append(""");
+ break;
+ case '\'':
+ buffer.append("'");
+ break;
+ case '<':
+ buffer.append("<");
+ break;
+ case '>':
+ buffer.append(">");
+ break;
+ default:
+ buffer.append(&pos, 1);
+ break;
+ }
+ }
+ return buffer;
+ }
+}
+
+void html::open() {
+ puts(
+R"(<html>
+ <head>
+ <style>
+ table.heatmap {
+ table-layout: fixed;
+ border-collapse: collapse;
+ font-family: sans-serif;
+ }
+ table.heatmap td, table.heatmap th {
+ text-align: center;
+ border: solid 1px lightgray;
+ height: 1.5em;
+ }
+ table.heatmap td {
+ border: solid 1px lightgray;
+ width: 1.5em;
+ height: 1.5em;
+ }
+ table.heatmap td.out-of-range {
+ background-color: gray;
+ }
+ </style>
+ </head>
+ <body>)");
+ indentation = 2;
+}
+
+void html::close() {
+ puts("\t</body>\n</html>");
+}
+
+void html::h1(const std::string& heading) {
+ indent();
+ printf("<h1>%s</h1>\n", encode(heading).c_str());
+}
+
+void html::h2(const std::string& heading) {
+ indent();
+ printf("<h2>%s</h2>\n", encode(heading).c_str());
+}
+
+void html::table_begin() {
+ indent();
+ puts("<table class=\"heatmap\">");
+ indent(1);
+ puts("<tr>");
+ indent(1);
+ puts("<th></th>");
+ static constexpr const char* months[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+ static constexpr int colspans[] = {5, 4, 4, 5, 4, 4, 5, 4, 4, 5, 4, 5};
+ for (unsigned i = 0 ; i < 12 ; i++) {
+ indent();
+ printf("<th scope=\"col\" colspan=\"%d\">%s</th>\n", colspans[i], months[i]);
+ }
+ indent(-1);
+ puts("</tr>");
+}
+
+void html::table_end() {
+ indentation--;
+ indent();
+ puts("</table>");
+}
+
+void html::row_begin(unsigned int row) {
+ static constexpr const char* weekdays[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
+ indent();
+ puts("<tr>");
+ indent(1);
+ printf("<th scope=\"row\">%s</th>\n", weekdays[row]);
+}
+
+void html::row_end() {
+ indent(-1);
+ puts("</tr>");
+}
+
+void html::cell_out_of_range() {
+ indent();
+ puts("<td class=\"out-of-range\"></td>");
+}
+
+void html::cell(unsigned commits) {
+ indent();
+ // TODO: use nice coloring and tooltips instead of printing the commits
+ printf("<td>%u</td>\n", commits);
+}