[libxml2]Add libxml2 library

libxml2/codegen/genEscape.py

@@ -0,0 +1,69 @@
+#!/usr/bin/env python3
+
+entities = [
+    [ '',   '�' ],
+    [ '\t', '	' ],
+    [ '\n', '
' ],
+    [ '\r', '
' ],
+    [ '"',  '"' ],
+    [ '&',  '&' ],
+    [ '<',  '&lt;' ],
+    [ '>',  '&gt;' ],
+]
+
+offset = [ None ] * 128
+
+def gen_content(out):
+    pos = 0
+    r = ''
+
+    for rec in entities:
+        char, repl = rec
+
+        if char:
+            offset[ord(char)] = pos
+
+        if pos % 12 == 0: r += '\n    '
+        else: r += ' '
+        r += '%3d,' % len(repl)
+        pos += 1
+
+        for c in repl:
+            if pos % 12 == 0: r += '\n    '
+            else: r += ' '
+            r += "'%s'," % c
+            pos += 1
+
+    out.write('static const char xmlEscapeContent[] = {%s\n};\n\n' % r)
+
+def gen_tab(out, name, escape, is_xml):
+    r = ''
+
+    for i in range(0x80):
+
+        if chr(i) in escape:
+            v = offset[i]
+        elif i == 0:
+            v = 0
+        elif is_xml and i < 32 and i != 9 and i != 10:
+            v = 0
+        else:
+            v = -1
+
+        if i % 16 == 0: r += '\n    '
+        else: r += ' '
+        r += '%2d,' % v
+
+    out.write('static const signed char %s[128] = {%s\n};\n\n' % (name, r))
+
+with open('codegen/escape.inc', 'w') as out:
+    gen_content(out)
+
+    gen_tab(out, 'xmlEscapeTab', '\r&<>', True)
+    gen_tab(out, 'xmlEscapeTabQuot', '\r"&<>', True)
+    gen_tab(out, 'xmlEscapeTabAttr', '\t\n\r"&<>', True)
+
+    out.write('#ifdef LIBXML_HTML_ENABLED\n\n')
+    gen_tab(out, 'htmlEscapeTab', '&<>', False)
+    gen_tab(out, 'htmlEscapeTabAttr', '"&<>', False)
+    out.write('#endif /* LIBXML_HTML_ENABLED */\n')