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executable file 80 lines (64 sloc) 2.383 kB
#!/usr/bin/env python
#
# Generate Format tables
import os
from optparse import OptionParser
OUTPUT_FILE = "FormatTables.cpp"
def generate_table(f, type_name, name, map):
f.write("extern const {0} {1}[] = {{".format(type_name, name))
for i in range(0, 256):
if i % 2 == 0:
f.write("\n ")
f.write("{0}::{1}, ".format(type_name, map.get(chr(i), "INVALID")))
f.write("\n};\n\n")
def generate_conv_table(f, name, values):
values = list(values)
line = ''
for i, v in enumerate(values):
if i == 0:
f.write("extern const char {0}[{1}][{2}] = {{\n".format(
name, len(values), len(v)))
row = "{{{0}}}, ".format(", ".join("'{0}'".format(x) for x in v))
if len(line) + len(row) > 79:
f.write(line + "\n")
line = ''
line += row
if line:
f.write(line + "\n")
f.write("};\n\n")
def octal_values():
return (tuple("{0:03o}".format(x)) for x in xrange(512))
def hex_values(upper):
fmt = "{0:02X}" if upper else "{0:02x}"
return (tuple(fmt.format(x)) for x in xrange(256))
def binary_values():
return (tuple("{0:08b}".format(x)) for x in xrange(256))
def generate(f):
f.write("#include \"folly/FormatArg.h\"\n"
"\n"
"namespace folly {\n"
"namespace detail {\n"
"\n")
generate_table(
f, "FormatArg::Align", "formatAlignTable",
{"<": "LEFT", ">": "RIGHT", "=": "PAD_AFTER_SIGN", "^": "CENTER"})
generate_table(
f, "FormatArg::Sign", "formatSignTable",
{"+": "PLUS_OR_MINUS", "-": "MINUS", " ": "SPACE_OR_MINUS"})
generate_conv_table(f, "formatOctal", octal_values())
generate_conv_table(f, "formatHexLower", hex_values(False))
generate_conv_table(f, "formatHexUpper", hex_values(True))
generate_conv_table(f, "formatBinary", binary_values())
f.write("} // namespace detail\n"
"} // namespace folly\n")
def main():
parser = OptionParser()
parser.add_option("--install_dir", dest="install_dir", default=".",
help="write output to DIR", metavar="DIR")
parser.add_option("--fbcode_dir")
(options, args) = parser.parse_args()
f = open(os.path.join(options.install_dir, OUTPUT_FILE), "w")
generate(f)
f.close()
if __name__ == "__main__":
main()
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