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Bring old demo up-to-date.

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This commit is contained in:
Georg Brandl 2009-10-10 21:07:35 +00:00
parent 58d2f2689a
commit 18cb949807
1 changed files with 31 additions and 32 deletions
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63
Demo/scripts/pp.py
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@ -22,7 +22,6 @@
# - except for -n/-p, run directly from the file if at all possible # - except for -n/-p, run directly from the file if at all possible
import sys import sys
import string
import getopt import getopt
FS = '' FS = ''
@ -36,7 +35,7 @@ PFLAG = 0
try: try:
optlist, ARGS = getopt.getopt(sys.argv[1:], 'acde:F:np') optlist, ARGS = getopt.getopt(sys.argv[1:], 'acde:F:np')
except getopt.error, msg: except getopt.error, msg:
sys.stderr.write(sys.argv[0] + ': ' + msg + '\n') sys.stderr.write('%s: %s\n' % (sys.argv[0], msg))
sys.exit(2) sys.exit(2)
for option, optarg in optlist: for option, optarg in optlist:
@ -47,7 +46,7 @@ for option, optarg in optlist:
elif option == '-d': elif option == '-d':
DFLAG = 1 DFLAG = 1
elif option == '-e': elif option == '-e':
for line in string.splitfields(optarg, '\n'): for line in optarg.split('\n'):
SCRIPT.append(line) SCRIPT.append(line)
elif option == '-F': elif option == '-F':
FS = optarg FS = optarg
@ -81,31 +80,31 @@ if CFLAG:
elif NFLAG: elif NFLAG:
# Note that it is on purpose that AFLAG and PFLAG are # Note that it is on purpose that AFLAG and PFLAG are
# tested dynamically each time through the loop # tested dynamically each time through the loop
prologue = [ \ prologue = [
'LINECOUNT = 0', \ 'LINECOUNT = 0',
'for FILE in ARGS:', \ 'for FILE in ARGS:',
' \tif FILE == \'-\':', \ ' \tif FILE == \'-\':',
' \t \tFP = sys.stdin', \ ' \t \tFP = sys.stdin',
' \telse:', \ ' \telse:',
' \t \tFP = open(FILE, \'r\')', \ ' \t \tFP = open(FILE, \'r\')',
' \tLINENO = 0', \ ' \tLINENO = 0',
' \twhile 1:', \ ' \twhile 1:',
' \t \tLINE = FP.readline()', \ ' \t \tLINE = FP.readline()',
' \t \tif not LINE: break', \ ' \t \tif not LINE: break',
' \t \tLINENO = LINENO + 1', \ ' \t \tLINENO = LINENO + 1',
' \t \tLINECOUNT = LINECOUNT + 1', \ ' \t \tLINECOUNT = LINECOUNT + 1',
' \t \tL = LINE[:-1]', \ ' \t \tL = LINE[:-1]',
' \t \taflag = AFLAG', \ ' \t \taflag = AFLAG',
' \t \tif aflag:', \ ' \t \tif aflag:',
' \t \t \tif FS: F = string.splitfields(L, FS)', \ ' \t \t \tif FS: F = L.split(FS)',
' \t \t \telse: F = string.split(L)' \ ' \t \t \telse: F = L.split()'
] ]
epilogue = [ \ epilogue = [
' \t \tif not PFLAG: continue', \ ' \t \tif not PFLAG: continue',
' \t \tif aflag:', \ ' \t \tif aflag:',
' \t \t \tif FS: print string.joinfields(F, FS)', \ ' \t \t \tif FS: print FS.join(F)',
' \t \t \telse: print string.join(F)', \ ' \t \t \telse: print \' \'.join(F)',
' \t \telse: print L', \ ' \t \telse: print L',
] ]
else: else:
prologue = ['if 1:'] prologue = ['if 1:']
@ -114,10 +113,10 @@ else:
# Note that we indent using tabs only, so that any indentation style # Note that we indent using tabs only, so that any indentation style
# used in 'command' will come out right after re-indentation. # used in 'command' will come out right after re-indentation.
program = string.joinfields(prologue, '\n') + '\n' program = '\n'.join(prologue) + '\n'
for line in SCRIPT: for line in SCRIPT:
program = program + (' \t \t' + line + '\n') program += ' \t \t' + line + '\n'
program = program + (string.joinfields(epilogue, '\n') + '\n') program += '\n'.join(epilogue) + '\n'
import tempfile import tempfile
fp = tempfile.NamedTemporaryFile() fp = tempfile.NamedTemporaryFile()
@ -125,6 +124,6 @@ fp.write(program)
fp.flush() fp.flush()
if DFLAG: if DFLAG:
import pdb import pdb
pdb.run('execfile(%r)' % (tfn,)) pdb.run('execfile(%r)' % (fp.name,))
else: else:
execfile(tfn) execfile(fp.name)