Returned html_escape() back to NarrativeWeb after discussions with Benny.

svn: r16649

src/plugins/webreport/NarrativeWeb.py

@@ -103,9 +103,6 @@ from libhtmlconst import _CHARACTER_SETS, _CC, _COPY_OPTIONS
 # src/plugins/lib/libhtml.py
 from libhtml import Html
 
-# ability to escape characters from html output
-from xml.sax.saxutils import escape as html_escape
-
 # import styled notes from
 # src/plugins/lib/libhtmlbackend.py
 from libhtmlbackend import HtmlBackend, process_spaces
@@ -203,6 +200,43 @@ wrapper.width = 20
 PLUGMAN = GuiPluginManager.get_instance()
 CSS = PLUGMAN.process_plugin_data('WEBSTUFF')
 
+_html_dbl_quotes = re.compile(r'([^"]*) " ([^"]*) " (.*)', re.VERBOSE)
+_html_sng_quotes = re.compile(r"([^']*) ' ([^']*) ' (.*)", re.VERBOSE)
+_html_replacement = {
+    "&"  : "&",
+    ">"  : ">",
+    "<"  : "&#60;",
+    }
+
+# This command then defines the 'html_escape' option for escaping
+# special characters for presentation in HTML based on the above list.
+def html_escape(text):
+    """Convert the text and replace some characters with a &# variant."""
+
+    # First single characters, no quotes
+    text = ''.join([_html_replacement.get(c, c) for c in text])
+
+    # Deal with double quotes.
+    while 1:
+        m = _html_dbl_quotes.match(text)
+        if not m:
+            break
+        text = m.group(1) + '&#8220;' + m.group(2) + '&#8221;' + m.group(3)
+    # Replace remaining double quotes.
+    text = text.replace('"', '&#34;')
+
+    # Deal with single quotes.
+    text = text.replace("'s ", '&#8217;s ')
+    while 1:
+        m = _html_sng_quotes.match(text)
+        if not m:
+            break
+        text = m.group(1) + '&#8216;' + m.group(2) + '&#8217;' + m.group(3)
+    # Replace remaining single quotes.
+    text = text.replace("'", '&#39;')
+
+    return text
+
 def name_to_md5(text):
     """This creates an MD5 hex string to be used as filename."""
     return md5(text).hexdigest()