summaryrefslogtreecommitdiffstats
path: root/Demo/scripts/pp.py
diff options
context:
space:
mode:
Diffstat (limited to 'Demo/scripts/pp.py')
-rwxr-xr-xDemo/scripts/pp.py125
1 files changed, 0 insertions, 125 deletions
diff --git a/Demo/scripts/pp.py b/Demo/scripts/pp.py
deleted file mode 100755
index 87b9d8f..0000000
--- a/Demo/scripts/pp.py
+++ /dev/null
@@ -1,125 +0,0 @@
-#! /usr/bin/env python3
-
-# Emulate some Perl command line options.
-# Usage: pp [-a] [-c] [-d] [-e scriptline] [-F fieldsep] [-n] [-p] [file] ...
-# Where the options mean the following:
-# -a : together with -n or -p, splits each line into list F
-# -c : check syntax only, do not execute any code
-# -d : run the script under the debugger, pdb
-# -e scriptline : gives one line of the Python script; may be repeated
-# -F fieldsep : sets the field separator for the -a option [not in Perl]
-# -n : runs the script for each line of input
-# -p : prints the line after the script has run
-# When no script lines have been passed, the first file argument
-# contains the script. With -n or -p, the remaining arguments are
-# read as input to the script, line by line. If a file is '-'
-# or missing, standard input is read.
-
-# XXX To do:
-# - add -i extension option (change files in place)
-# - make a single loop over the files and lines (changes effect of 'break')?
-# - add an option to specify the record separator
-# - except for -n/-p, run directly from the file if at all possible
-
-import sys
-import getopt
-
-FS = ''
-SCRIPT = []
-AFLAG = 0
-CFLAG = 0
-DFLAG = 0
-NFLAG = 0
-PFLAG = 0
-
-try:
- optlist, ARGS = getopt.getopt(sys.argv[1:], 'acde:F:np')
-except getopt.error as msg:
- sys.stderr.write('%s: %s\n' % (sys.argv[0], msg))
- sys.exit(2)
-
-for option, optarg in optlist:
- if option == '-a':
- AFLAG = 1
- elif option == '-c':
- CFLAG = 1
- elif option == '-d':
- DFLAG = 1
- elif option == '-e':
- for line in optarg.split('\n'):
- SCRIPT.append(line)
- elif option == '-F':
- FS = optarg
- elif option == '-n':
- NFLAG = 1
- PFLAG = 0
- elif option == '-p':
- NFLAG = 1
- PFLAG = 1
- else:
- print(option, 'not recognized???')
-
-if not ARGS: ARGS.append('-')
-
-if not SCRIPT:
- if ARGS[0] == '-':
- fp = sys.stdin
- else:
- fp = open(ARGS[0], 'r')
- while 1:
- line = fp.readline()
- if not line: break
- SCRIPT.append(line[:-1])
- del fp
- del ARGS[0]
- if not ARGS: ARGS.append('-')
-
-if CFLAG:
- prologue = ['if 0:']
- epilogue = []
-elif NFLAG:
- # Note that it is on purpose that AFLAG and PFLAG are
- # tested dynamically each time through the loop
- prologue = [
- 'LINECOUNT = 0',
- 'for FILE in ARGS:',
- ' \tif FILE == \'-\':',
- ' \t \tFP = sys.stdin',
- ' \telse:',
- ' \t \tFP = open(FILE, \'r\')',
- ' \tLINENO = 0',
- ' \twhile 1:',
- ' \t \tLINE = FP.readline()',
- ' \t \tif not LINE: break',
- ' \t \tLINENO = LINENO + 1',
- ' \t \tLINECOUNT = LINECOUNT + 1',
- ' \t \tL = LINE[:-1]',
- ' \t \taflag = AFLAG',
- ' \t \tif aflag:',
- ' \t \t \tif FS: F = L.split(FS)',
- ' \t \t \telse: F = L.split()'
- ]
- epilogue = [
- ' \t \tif not PFLAG: continue',
- ' \t \tif aflag:',
- ' \t \t \tif FS: print(FS.join(F))',
- ' \t \t \telse: print(\' \'.join(F))',
- ' \t \telse: print(L)',
- ]
-else:
- prologue = ['if 1:']
- epilogue = []
-
-# Note that we indent using tabs only, so that any indentation style
-# used in 'command' will come out right after re-indentation.
-
-program = '\n'.join(prologue) + '\n'
-for line in SCRIPT:
- program += ' \t \t' + line + '\n'
-program += '\n'.join(epilogue) + '\n'
-
-if DFLAG:
- import pdb
- pdb.run(program)
-else:
- exec(program)