source/libs/zziplib/zziplib-0.13.62/docs/zzipdoc/htmldocument.py

   1 #! /usr/bin/env python
   2 # -*- coding: UTF-8 -*-
   3 from match import Match
   4
   5 class HtmlDocument:
   6     """ binds some html content page with additional markup - in this
   7     base version it is just the header information while other variants
   8     might add navigation items around the content block elements """
   9     def __init__(self, o, filename = None):
  10         self.o = o
  11         self.filename = filename
  12         self.title = ""
  13         self.meta = []
  14         self.style = []
  15         self.text = []
  16         self.navi = None
  17     def meta(self, style):
  18         """ add some header meta entry """
  19         self.meta += [ meta ]
  20         return self
  21     def style(self, style):
  22         """ add a style block """
  23         self.style += [ style ]
  24         return self
  25     def add(self, text):
  26         """ add some content """
  27         self.text += [ text ]
  28         return self
  29     def get_title(self):
  30         if self.title: return self.title
  31         try:   return self.text[0].get_title()
  32         except Exception, e: pass
  33         return self.title
  34     def _html_meta(self, meta):
  35         """ accepts adapter objects with .html_meta() """
  36         try:   return meta.html_meta()
  37         except Exception, e: pass
  38         return str(meta)
  39     def _html_style(self, style):
  40         """ accepts adapter objects with .html_style() and .xml_style() """
  41         ee = None
  42         try:   return style.html_style()
  43         except Exception, e: ee = e; pass
  44         try:   return style.xml_style()
  45         except Exception, e: print "HtmlDocument/style", ee, e; pass
  46         try:   return str(style)
  47         except Exception, e: print "HtmlDocument/style", e; return ""
  48     def _html_text(self, html):
  49         """ accepts adapter objects with .html_text() and .xml_text() """
  50         ee = None
  51         try:   return html.html_text()
  52         except Exception, e: ee = e; pass
  53         try:   return html.xml_text()
  54         except Exception, e: print "HtmlDocument/text", ee, e; pass
  55         try:   return str(html)
  56         except Exception, e: print "HtmlDocument/text", e; return "&nbsp;"
  57     def navigation(self):
  58         if self.navi:
  59             return self.navi
  60         if self.o.body:
  61             try:
  62                 fd = open(self.o.body, "r")
  63                 self.navi = fd.read()
  64                 fd.close()
  65                 return self.navi
  66             except Exception, e:
  67                 pass
  68         return None
  69     def html_header(self):
  70         navi = self.navigation()
  71         if not navi:
  72             T = "<html><head>"
  73             title = self.get_title()
  74             if title:
  75                 T += "<title>"+title+"</title>"
  76             T += "\n"
  77             for style in self.style:
  78                 T += self._html_style(style)
  79                 T += "\n"
  80             return T+"</head><body>"
  81         else:
  82             title = self.get_title()
  83             return navi & (
  84                 Match(r"<!--title-->") >> " - "+title) & (
  85                 Match(r"<!--VERSION-->") >> self.o.version) & (
  86                 Match(r"(?m).*</body></html>") >> "")
  87     def html_footer(self):
  88         navi = self.navigation()
  89         if not navi:
  90             return "</body></html>"
  91         else:
  92             return navi & (
  93                 Match(r"(?m)(.*</body></html>)") >> "%&%&%&%\\1") & (
  94                 Match(r"(?s).*%&%&%&%") >> "")
  95     def _filename(self, filename):
  96         if filename is not None:
  97             self.filename = filename
  98         filename = self.filename
  99         if not filename & Match(r"\.\w+$"):
 100             ext = self.o.html
 101             if not ext: ext = "html"
 102             filename += "."+ext
 103         return filename
 104     def save(self, filename = None):
 105         filename = self._filename(filename)
 106         print "writing '"+filename+"'"
 107         try:
 108             fd = open(filename, "w")
 109             print >>fd, self.html_header()
 110             for text in self.text:
 111                 print >>fd, self._html_text(text)
 112             print >>fd, self.html_footer()
 113             fd.close()
 114             return True
 115         except IOError, e:
 116             print "could not open '"+filename+"'file", e
 117             return False