docs/options.md: use a separate table for each option group

scripts/options.py

@@ -11,6 +11,7 @@
 
 import os
 import re
+from argparse import SUPPRESS
 
 import util
 from gallery_dl import option
@@ -20,33 +21,38 @@ TEMPLATE = """# Command-Line Options
 
 <!-- auto-generated by {} -->
 
+{}
+"""
+
+TABLE = """
+## {}
+
 <table>
-<thead>
-<tr>
-    <th></th>
-    <th width="26%"></th>
-    <th></th>
-</tr>
-</thead>
 <tbody valign="top">
 {}
 </tbody>
 </table>
-"""
+""".format
+
+ROW = """<tr>
+    <td>{}</td>
+    <td{}>{}</td>
+    <td>{}</td>
+</tr>""".format
 
 
-tbody = []
-append = tbody.append
 sub = re.compile(r"'([^']+)'").sub
+tables = []
 
 for group in option.build_parser()._action_groups[2:]:
 
-    append('\n<tr>\n    <td colspan="3"><strong>' +
-           group.title + '</strong></td>\n</tr>')
+    tbody = []
+    append = tbody.append
+    width = ' width="28%"'
 
     for action in group._group_actions:
         help = action.help
-        if help == "==SUPPRESS==":
+        if help == SUPPRESS:
             continue
 
         try:
@@ -62,16 +68,18 @@ for group in option.build_parser()._action_groups[2:]:
             short = "<code>" + short + "</code>"
         if long:
             long = '<code>' + long + "</code>"
+        if help:
+            help = help.replace("<", "&lt;").replace(">", "&gt;")
+            help = sub("<code>\\1</code>", help)
 
-        append("<tr>")
-        append("    <td>" + short + "</td>")
-        append("    <td>" + long + "</td>")
-        append("    <td>" + sub("<code>\\1</code>", help) + "</td>")
-        append("</tr>")
+        append(ROW(short, width, long, help))
+        width = ""
+
+    tables.append(TABLE(group.title, "\n".join(tbody)))
 
 
 with open(util.path("docs", "options.md"), "w", encoding="utf-8") as fp:
     fp.write(TEMPLATE.format(
         "/".join(os.path.normpath(__file__).split(os.sep)[-2:]),
-        "\n".join(tbody),
+        "\n".join(tables),
     ))