Add python 3 support

plugin/Phpqa.vim

@@ -29,7 +29,13 @@ if 0 == has("signs")
 endif
 
 let $CUR_DIRECTORY=expand("<sfile>:p:h")
-source $CUR_DIRECTORY/python/codecoverage.vim
+if 1 == has('python3')
+	source $CUR_DIRECTORY/python/codecoverage_py3.vim
+else
+	if 1 == has('python')
+		source $CUR_DIRECTORY/python/codecoverage.vim
+	endif
+endif
 
 let g:phpqa_check = 1
 

plugin/python/codecoverage_py3.vim

@@ -0,0 +1,70 @@
+function! AddCodeCoverageSigns(clover)
+    if has('python3')
+python3 << EOF
+import lxml.etree
+import vim
+import os.path
+import time
+
+global doc
+global mtime
+
+try:
+    mtime
+except NameError:
+    mtime = 0
+
+clover = vim.eval('a:clover')
+buf = vim.eval('bufname("%")')
+fileName = vim.eval('fnamemodify("'+buf+'","%")')
+
+"""
+XML may already be parsed and held in memory
+Check the file modification time, and only re-parse
+if it's been modified.
+"""
+try:
+    try:
+        doc
+        if doc != None:
+            cmtime = time.ctime(os.path.getmtime(clover))
+            if cmtime > mtime:
+                doc = None
+    except NameError:
+        doc = None
+
+    " t0 = time.time() "
+
+    if doc is None:
+        doc = lxml.etree.parse(clover)
+        mtime = time.ctime(os.path.getmtime(clover))
+
+    #ctxt = doc.xpathNewContext()
+    #res = ctxt.xpathEval("//file[substring(@name, string-length(@name) - string-length('"+fileName+"') + 1)='"+fileName+"']/line[@type='stmt']")
+    res = doc.xpath("//file[substring(@name, string-length(@name) - string-length('"+fileName+"') + 1)='"+fileName+"']/line[@type='stmt']")
+    cur_signs = int(vim.eval('g:phpqa_num_cc_signs'))
+    showcovered = int(vim.eval('g:phpqa_codecoverage_showcovered'))
+    cmd_list = ''
+
+    for node in res:
+        lnum = node.attrib['num']
+        cnt = int(node.attrib['count'])
+        if showcovered == 0 and cnt > 0:
+            continue
+        cur_signs += 1
+        sign = "CodeCoverageCovered" if cnt > 0 else "CodeCoverageNotCovered"
+        cmd_list += 'exec "sign place 4783 name='+sign+' line='+lnum+' file='+fileName+'" | '
+
+    vim.command(cmd_list)
+    vim.command('let g:phpqa_num_cc_signs='+str(cur_signs))
+
+except os.error:
+    vim.command('echohl Error | echo "Missing or inaccessible code coverage file" | echohl None')
+except Exception as e:
+    vim.command('echohl Error | echo "An error has occured while parsing the code coverage file" | echohl None')
+
+EOF
+    else
+        echohl Error | echo "Code coverage support for PHPQA requires Vim with Python3" | echohl None
+    endif
+endfunction