utility to clean up converted from TeX rst docs

docroot/reformat.py

+import os, sys, re
+
+finput=open(sys.argv[1], "rt")
+
+# read the whole file content to s
+s = "".join(finput.readlines())
+finput.close()
+
+# normalize line endings
+s = re.sub(r"\r\n", "\n", s)
+
+# remove trailing whitespaces
+s = re.sub(r"[ \t]+\n", "\n", s)
+
+# compress multiple empty lines
+for i in range(5):
+    s = re.sub(r"\n\n\n", "\n\n", s)
+
+# remove empty line before ".." that terminates a code block
+s = re.sub(r"\n\n\.\.\n", "\n..\n", s)
+
+# move :: starting a code block to the end of previous line
+s = re.sub(r"\n\n::\n", " ::\n", s)
+
+# remove extra line breaks before/after _ or ,
+s = re.sub(r"\n[ \t]*([_,])\n", r"\1", s)
+
+# remove extra line breaks after `
+s = re.sub(r"`\n", "` ", s)
+
+# remove extra line breaks before `
+s = re.sub(r"\n[ \t]*`", " `", s)
+
+# remove links to wiki
+s = re.sub(r"\n[ \t]*`id=\d[^`]+`__\n", "", s)
+
+# remove trailing whitespaces one more time
+s = re.sub(r"[ \t]+\n", "\n", s)
+
+foutput=open(sys.argv[2], "wt")
+foutput.write(s)
+foutput.close()