Merge pull request #182 from miracle2k/examples

Add script to output codepage tables.

examples/codepage_tables.py

@@ -0,0 +1,59 @@
+"""Prints code page tables.
+"""
+
+import six
+import sys
+
+from escpos import printer
+from escpos.constants import *
+
+
+def main():
+    dummy = printer.Dummy()
+
+    dummy.hw('init')
+
+    for codepage in sys.argv[1:] or ['USA']:
+        dummy.set(height=2, width=2)
+        dummy._raw(codepage+"\n\n\n")
+        print_codepage(dummy, codepage)
+        dummy._raw("\n\n")
+
+    dummy.cut()
+
+    print dummy.output
+
+
+def print_codepage(printer, codepage):
+    if codepage.isdigit():
+        codepage = int(codepage)
+        printer._raw(CODEPAGE_CHANGE + six.int2byte(codepage))
+        printer._raw("after")
+    else:
+        printer.charcode(codepage)
+
+    sep = ""
+
+    # Table header
+    printer.set(text_type='B')
+    printer._raw("  %s\n" % sep.join(map(lambda s: hex(s)[2:], range(0,16))))
+    printer.set()
+
+    # The table
+    for x in range(0,16):
+        # First column
+        printer.set(text_type='B')
+        printer._raw("%s " % hex(x)[2:])
+        printer.set()
+
+        for y in range(0,16):
+            byte = six.int2byte(x*16+y)
+
+            if byte in (ESC, CTL_LF, CTL_FF, CTL_CR, CTL_HT, CTL_VT):
+                byte = ' '
+
+            printer._raw(byte)
+            printer._raw(sep)
+        printer._raw('\n')
+
+main()