183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh#! /usr/bin/env python 283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh"""Conversions to/from quoted-printable transport encoding as per RFC 1521.""" 483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh# (Dec 1991 version). 683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh__all__ = ["encode", "decode", "encodestring", "decodestring"] 883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew HsiehESCAPE = '=' 1083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew HsiehMAXLINESIZE = 76 1183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew HsiehHEX = '0123456789ABCDEF' 1283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew HsiehEMPTYSTRING = '' 1383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 1483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehtry: 1583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh from binascii import a2b_qp, b2a_qp 1683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehexcept ImportError: 1783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh a2b_qp = None 1883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh b2a_qp = None 1983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 2083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 2183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehdef needsquoting(c, quotetabs, header): 2283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh """Decide whether a particular character needs to be quoted. 2383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 2483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh The 'quotetabs' flag indicates whether embedded tabs and spaces should be 2583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh quoted. Note that line-ending tabs and spaces are always encoded, as per 2683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh RFC 1521. 2783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh """ 2883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if c in ' \t': 2983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return quotetabs 3083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # if header, we have to escape _ because _ is used to escape space 3183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if c == '_': 3283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return header 3383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return c == ESCAPE or not (' ' <= c <= '~') 3483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 3583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehdef quote(c): 3683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh """Quote a single character.""" 3783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh i = ord(c) 3883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return ESCAPE + HEX[i//16] + HEX[i%16] 3983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 4083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 4183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 4283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehdef encode(input, output, quotetabs, header = 0): 4383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh """Read 'input', apply quoted-printable encoding, and write to 'output'. 4483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 4583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 'input' and 'output' are files with readline() and write() methods. 4683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh The 'quotetabs' flag indicates whether embedded tabs and spaces should be 4783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh quoted. Note that line-ending tabs and spaces are always encoded, as per 4883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh RFC 1521. 4983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh The 'header' flag indicates whether we are encoding spaces as _ as per 5083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh RFC 1522. 5183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh """ 5283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 5383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if b2a_qp is not None: 5483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh data = input.read() 5583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh odata = b2a_qp(data, quotetabs = quotetabs, header = header) 5683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh output.write(odata) 5783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return 5883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 5983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh def write(s, output=output, lineEnd='\n'): 6083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # RFC 1521 requires that the line ending in a space or tab must have 6183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # that trailing character encoded. 6283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if s and s[-1:] in ' \t': 6383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh output.write(s[:-1] + quote(s[-1]) + lineEnd) 6483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh elif s == '.': 6583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh output.write(quote(s) + lineEnd) 6683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh else: 6783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh output.write(s + lineEnd) 6883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 6983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh prevline = None 7083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh while 1: 7183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh line = input.readline() 7283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if not line: 7383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh break 7483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh outline = [] 7583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # Strip off any readline induced trailing newline 7683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh stripped = '' 7783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if line[-1:] == '\n': 7883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh line = line[:-1] 7983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh stripped = '\n' 8083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # Calculate the un-length-limited encoded line 8183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh for c in line: 8283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if needsquoting(c, quotetabs, header): 8383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh c = quote(c) 8483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if header and c == ' ': 8583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh outline.append('_') 8683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh else: 8783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh outline.append(c) 8883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # First, write out the previous line 8983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if prevline is not None: 9083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh write(prevline) 9183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # Now see if we need any soft line breaks because of RFC-imposed 9283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # length limitations. Then do the thisline->prevline dance. 9383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh thisline = EMPTYSTRING.join(outline) 9483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh while len(thisline) > MAXLINESIZE: 9583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # Don't forget to include the soft line break `=' sign in the 9683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # length calculation! 9783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh write(thisline[:MAXLINESIZE-1], lineEnd='=\n') 9883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh thisline = thisline[MAXLINESIZE-1:] 9983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # Write out the current line 10083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh prevline = thisline 10183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # Write out the last line, without a trailing newline 10283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if prevline is not None: 10383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh write(prevline, lineEnd=stripped) 10483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 10583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehdef encodestring(s, quotetabs = 0, header = 0): 10683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if b2a_qp is not None: 10783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return b2a_qp(s, quotetabs = quotetabs, header = header) 10883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh from cStringIO import StringIO 10983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh infp = StringIO(s) 11083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh outfp = StringIO() 11183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh encode(infp, outfp, quotetabs, header) 11283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return outfp.getvalue() 11383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 11483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 11583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 11683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehdef decode(input, output, header = 0): 11783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh """Read 'input', apply quoted-printable decoding, and write to 'output'. 11883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 'input' and 'output' are files with readline() and write() methods. 11983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh If 'header' is true, decode underscore as space (per RFC 1522).""" 12083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 12183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if a2b_qp is not None: 12283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh data = input.read() 12383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh odata = a2b_qp(data, header = header) 12483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh output.write(odata) 12583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return 12683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 12783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh new = '' 12883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh while 1: 12983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh line = input.readline() 13083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if not line: break 13183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh i, n = 0, len(line) 13283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if n > 0 and line[n-1] == '\n': 13383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh partial = 0; n = n-1 13483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh # Strip trailing whitespace 13583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh while n > 0 and line[n-1] in " \t\r": 13683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh n = n-1 13783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh else: 13883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh partial = 1 13983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh while i < n: 14083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh c = line[i] 14183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if c == '_' and header: 14283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh new = new + ' '; i = i+1 14383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh elif c != ESCAPE: 14483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh new = new + c; i = i+1 14583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh elif i+1 == n and not partial: 14683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh partial = 1; break 14783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh elif i+1 < n and line[i+1] == ESCAPE: 14883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh new = new + ESCAPE; i = i+2 14983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh elif i+2 < n and ishex(line[i+1]) and ishex(line[i+2]): 15083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh new = new + chr(unhex(line[i+1:i+3])); i = i+3 15183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh else: # Bad escape sequence -- leave it in 15283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh new = new + c; i = i+1 15383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if not partial: 15483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh output.write(new + '\n') 15583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh new = '' 15683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if new: 15783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh output.write(new) 15883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 15983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehdef decodestring(s, header = 0): 16083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if a2b_qp is not None: 16183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return a2b_qp(s, header = header) 16283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh from cStringIO import StringIO 16383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh infp = StringIO(s) 16483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh outfp = StringIO() 16583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh decode(infp, outfp, header = header) 16683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return outfp.getvalue() 16783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 16883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 16983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 17083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh# Other helper functions 17183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehdef ishex(c): 17283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh """Return true if the character 'c' is a hexadecimal digit.""" 17383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return '0' <= c <= '9' or 'a' <= c <= 'f' or 'A' <= c <= 'F' 17483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 17583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehdef unhex(s): 17683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh """Get the integer value of a hexadecimal number.""" 17783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh bits = 0 17883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh for c in s: 17983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if '0' <= c <= '9': 18083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh i = ord('0') 18183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh elif 'a' <= c <= 'f': 18283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh i = ord('a')-10 18383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh elif 'A' <= c <= 'F': 18483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh i = ord('A')-10 18583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh else: 18683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh break 18783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh bits = bits*16 + (ord(c) - i) 18883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh return bits 18983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 19083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 19183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 19283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehdef main(): 19383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh import sys 19483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh import getopt 19583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh try: 19683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh opts, args = getopt.getopt(sys.argv[1:], 'td') 19783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh except getopt.error, msg: 19883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh sys.stdout = sys.stderr 19983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh print msg 20083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh print "usage: quopri [-t | -d] [file] ..." 20183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh print "-t: quote tabs" 20283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh print "-d: decode; default encode" 20383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh sys.exit(2) 20483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh deco = 0 20583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh tabs = 0 20683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh for o, a in opts: 20783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if o == '-t': tabs = 1 20883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if o == '-d': deco = 1 20983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if tabs and deco: 21083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh sys.stdout = sys.stderr 21183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh print "-t and -d are mutually exclusive" 21283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh sys.exit(2) 21383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if not args: args = ['-'] 21483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh sts = 0 21583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh for file in args: 21683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if file == '-': 21783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh fp = sys.stdin 21883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh else: 21983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh try: 22083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh fp = open(file) 22183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh except IOError, msg: 22283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh sys.stderr.write("%s: can't open (%s)\n" % (file, msg)) 22383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh sts = 1 22483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh continue 22583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if deco: 22683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh decode(fp, sys.stdout) 22783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh else: 22883760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh encode(fp, sys.stdout, tabs) 22983760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if fp is not sys.stdin: 23083760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh fp.close() 23183760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh if sts: 23283760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh sys.exit(sts) 23383760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 23483760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 23583760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh 23683760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsiehif __name__ == '__main__': 23783760d213fb3bec7b4117d266fcfbf6fe2ba14abAndrew Hsieh main() 238