[mirror_edk2.git] / AppPkg / Applications / Python / Python-2.7.2 / Demo / scripts / pp.py

#! /usr/bin/env python\r
\r
# Emulate some Perl command line options.\r
# Usage: pp [-a] [-c] [-d] [-e scriptline] [-F fieldsep] [-n] [-p] [file] ...\r
# Where the options mean the following:\r
#   -a            : together with -n or -p, splits each line into list F\r
#   -c            : check syntax only, do not execute any code\r
#   -d            : run the script under the debugger, pdb\r
#   -e scriptline : gives one line of the Python script; may be repeated\r
#   -F fieldsep   : sets the field separator for the -a option [not in Perl]\r
#   -n            : runs the script for each line of input\r
#   -p            : prints the line after the script has run\r
# When no script lines have been passed, the first file argument\r
# contains the script.  With -n or -p, the remaining arguments are\r
# read as input to the script, line by line.  If a file is '-'\r
# or missing, standard input is read.\r
\r
# XXX To do:\r
# - add -i extension option (change files in place)\r
# - make a single loop over the files and lines (changes effect of 'break')?\r
# - add an option to specify the record separator\r
# - except for -n/-p, run directly from the file if at all possible\r
\r
import sys\r
import getopt\r
\r
FS = ''\r
SCRIPT = []\r
AFLAG = 0\r
CFLAG = 0\r
DFLAG = 0\r
NFLAG = 0\r
PFLAG = 0\r
\r
try:\r
    optlist, ARGS = getopt.getopt(sys.argv[1:], 'acde:F:np')\r
except getopt.error, msg:\r
    sys.stderr.write('%s: %s\n' % (sys.argv[0], msg))\r
    sys.exit(2)\r
\r
for option, optarg in optlist:\r
    if option == '-a':\r
        AFLAG = 1\r
    elif option == '-c':\r
        CFLAG = 1\r
    elif option == '-d':\r
        DFLAG = 1\r
    elif option == '-e':\r
        for line in optarg.split('\n'):\r
            SCRIPT.append(line)\r
    elif option == '-F':\r
        FS = optarg\r
    elif option == '-n':\r
        NFLAG = 1\r
        PFLAG = 0\r
    elif option == '-p':\r
        NFLAG = 1\r
        PFLAG = 1\r
    else:\r
        print option, 'not recognized???'\r
\r
if not ARGS: ARGS.append('-')\r
\r
if not SCRIPT:\r
    if ARGS[0] == '-':\r
        fp = sys.stdin\r
    else:\r
        fp = open(ARGS[0], 'r')\r
    while 1:\r
        line = fp.readline()\r
        if not line: break\r
        SCRIPT.append(line[:-1])\r
    del fp\r
    del ARGS[0]\r
    if not ARGS: ARGS.append('-')\r
\r
if CFLAG:\r
    prologue = ['if 0:']\r
    epilogue = []\r
elif NFLAG:\r
    # Note that it is on purpose that AFLAG and PFLAG are\r
    # tested dynamically each time through the loop\r
    prologue = [\r
            'LINECOUNT = 0',\r
            'for FILE in ARGS:',\r
            '   \tif FILE == \'-\':',\r
            '   \t   \tFP = sys.stdin',\r
            '   \telse:',\r
            '   \t   \tFP = open(FILE, \'r\')',\r
            '   \tLINENO = 0',\r
            '   \twhile 1:',\r
            '   \t   \tLINE = FP.readline()',\r
            '   \t   \tif not LINE: break',\r
            '   \t   \tLINENO = LINENO + 1',\r
            '   \t   \tLINECOUNT = LINECOUNT + 1',\r
            '   \t   \tL = LINE[:-1]',\r
            '   \t   \taflag = AFLAG',\r
            '   \t   \tif aflag:',\r
            '   \t   \t   \tif FS: F = L.split(FS)',\r
            '   \t   \t   \telse: F = L.split()'\r
            ]\r
    epilogue = [\r
            '   \t   \tif not PFLAG: continue',\r
            '   \t   \tif aflag:',\r
            '   \t   \t   \tif FS: print FS.join(F)',\r
            '   \t   \t   \telse: print \' \'.join(F)',\r
            '   \t   \telse: print L',\r
            ]\r
else:\r
    prologue = ['if 1:']\r
    epilogue = []\r
\r
# Note that we indent using tabs only, so that any indentation style\r
# used in 'command' will come out right after re-indentation.\r
\r
program = '\n'.join(prologue) + '\n'\r
for line in SCRIPT:\r
    program += '   \t   \t' + line + '\n'\r
program += '\n'.join(epilogue) + '\n'\r
\r
import tempfile\r
fp = tempfile.NamedTemporaryFile()\r
fp.write(program)\r
fp.flush()\r
if DFLAG:\r
    import pdb\r
    pdb.run('execfile(%r)' % (fp.name,))\r
else:\r
    execfile(fp.name)\r
Commit	Line	Data
4710c53d	1	#! /usr/bin/env python\r
	2	\r
	3	# Emulate some Perl command line options.\r
	4	# Usage: pp [-a] [-c] [-d] [-e scriptline] [-F fieldsep] [-n] [-p] [file] ...\r
	5	# Where the options mean the following:\r
	6	# -a : together with -n or -p, splits each line into list F\r
	7	# -c : check syntax only, do not execute any code\r
	8	# -d : run the script under the debugger, pdb\r
	9	# -e scriptline : gives one line of the Python script; may be repeated\r
	10	# -F fieldsep : sets the field separator for the -a option [not in Perl]\r
	11	# -n : runs the script for each line of input\r
	12	# -p : prints the line after the script has run\r
	13	# When no script lines have been passed, the first file argument\r
	14	# contains the script. With -n or -p, the remaining arguments are\r
	15	# read as input to the script, line by line. If a file is '-'\r
	16	# or missing, standard input is read.\r
	17	\r
	18	# XXX To do:\r
	19	# - add -i extension option (change files in place)\r
	20	# - make a single loop over the files and lines (changes effect of 'break')?\r
	21	# - add an option to specify the record separator\r
	22	# - except for -n/-p, run directly from the file if at all possible\r
	23	\r
	24	import sys\r
	25	import getopt\r
	26	\r
	27	FS = ''\r
	28	SCRIPT = []\r
	29	AFLAG = 0\r
	30	CFLAG = 0\r
	31	DFLAG = 0\r
	32	NFLAG = 0\r
	33	PFLAG = 0\r
	34	\r
	35	try:\r
	36	optlist, ARGS = getopt.getopt(sys.argv[1:], 'acde:F:np')\r
	37	except getopt.error, msg:\r
	38	sys.stderr.write('%s: %s\n' % (sys.argv[0], msg))\r
	39	sys.exit(2)\r
	40	\r
	41	for option, optarg in optlist:\r
	42	if option == '-a':\r
	43	AFLAG = 1\r
	44	elif option == '-c':\r
	45	CFLAG = 1\r
	46	elif option == '-d':\r
	47	DFLAG = 1\r
	48	elif option == '-e':\r
	49	for line in optarg.split('\n'):\r
	50	SCRIPT.append(line)\r
	51	elif option == '-F':\r
	52	FS = optarg\r
	53	elif option == '-n':\r
	54	NFLAG = 1\r
	55	PFLAG = 0\r
	56	elif option == '-p':\r
	57	NFLAG = 1\r
	58	PFLAG = 1\r
	59	else:\r
	60	print option, 'not recognized???'\r
	61	\r
	62	if not ARGS: ARGS.append('-')\r
	63	\r
	64	if not SCRIPT:\r
65	if ARGS[0] == '-':\r
66	fp = sys.stdin\r
67	else:\r
68	fp = open(ARGS[0], 'r')\r
69	while 1:\r
70	line = fp.readline()\r
71	if not line: break\r
72	SCRIPT.append(line[:-1])\r
73	del fp\r
74	del ARGS[0]\r
75	if not ARGS: ARGS.append('-')\r
76	\r
77	if CFLAG:\r
78	prologue = ['if 0:']\r
79	epilogue = []\r
80	elif NFLAG:\r
81	# Note that it is on purpose that AFLAG and PFLAG are\r
82	# tested dynamically each time through the loop\r
83	prologue = [\r
84	'LINECOUNT = 0',\r
85	'for FILE in ARGS:',\r
86	' \tif FILE == \'-\':',\r
87	' \t \tFP = sys.stdin',\r
88	' \telse:',\r
89	' \t \tFP = open(FILE, \'r\')',\r
90	' \tLINENO = 0',\r
91	' \twhile 1:',\r
92	' \t \tLINE = FP.readline()',\r
93	' \t \tif not LINE: break',\r
94	' \t \tLINENO = LINENO + 1',\r
95	' \t \tLINECOUNT = LINECOUNT + 1',\r
96	' \t \tL = LINE[:-1]',\r
97	' \t \taflag = AFLAG',\r
98	' \t \tif aflag:',\r
99	' \t \t \tif FS: F = L.split(FS)',\r
100	' \t \t \telse: F = L.split()'\r
101	]\r
102	epilogue = [\r
103	' \t \tif not PFLAG: continue',\r
104	' \t \tif aflag:',\r
105	' \t \t \tif FS: print FS.join(F)',\r
106	' \t \t \telse: print \' \'.join(F)',\r
107	' \t \telse: print L',\r
108	]\r
109	else:\r
110	prologue = ['if 1:']\r
111	epilogue = []\r
112	\r
113	# Note that we indent using tabs only, so that any indentation style\r
114	# used in 'command' will come out right after re-indentation.\r
115	\r
116	program = '\n'.join(prologue) + '\n'\r
117	for line in SCRIPT:\r
118	program += ' \t \t' + line + '\n'\r
119	program += '\n'.join(epilogue) + '\n'\r
120	\r
121	import tempfile\r
122	fp = tempfile.NamedTemporaryFile()\r
123	fp.write(program)\r
124	fp.flush()\r
125	if DFLAG:\r
126	import pdb\r
127	pdb.run('execfile(%r)' % (fp.name,))\r
128	else:\r
129	execfile(fp.name)\r