Illustratorファイル（ai, eps）の作成アプリバージョンと保存バージョンを検出する

aiver.py

#!/usr/bin/python
#
# Usage: python aiver.py illustrator-file(ai,eps)
#
# This script will detect the app version written in the illustrator file.
# 

import sys, os, re

def getAppName(ver):
	# get illustrator app name
	fv = float(ver)
	mv = int(fv)
	if (mv>=1 and mv<=4) or (mv>=6 and mv<=10):
		return str(mv)
	elif mv==5:
		if fv<5.5:
			return '5'
		else:
			return '5.5'
	elif mv==11:
		return 'CS'
	elif (mv>=12 and mv<=14) or mv==16:
		return 'CS'+str(mv-10)
	elif mv==15:
		if fv<15.5:
			return 'CS5'
		else:
			return "CS5.5"
	elif mv==17:
		return 'CC'
	elif (mv>=18 and mv<=19) or (mv>=21 and mv<=23):
		return 'CC '+str(mv+1996)
	elif mv==20:
		return 'CC 2015.3'
	else:
		return str(mv+1996)	

def getVer(s):
	createdVer = ''
	savedVer = ''
	# like strings
	s = re.sub(r'[\x00-\x1F\x7F-\xFF]+', '', s)
	# created version
	cvList = s.split('AI8_CreatorVersion: ', 1)
	if len(cvList)==2:
		m = re.search(r'^[\d.]+', cvList[1])
		createdVer = m.group()
	# saved version
	svList = s.split('%%Creator: Adobe Illustrator(R) ')
	c = len(svList)
	if c==2:
		m = re.search(r'^[\d.]+', svList[1])
		savedVer = m.group()
	elif c>2:
		m = re.search(r'^[\d.]+', svList[-1])
		savedVer = m.group()
	return [createdVer, savedVer]
	

if len(sys.argv) > 1 :

	arg = sys.argv[1]
	ex = os.path.splitext(arg)[1]
	
	if ex in {'.ai', '.eps'}:
		
		# read
		f = open(arg, 'rb')
		
		mb = 1048576 #1MB
		rs = f.read(mb)
		vers = getVer(rs)
		
		if not vers[1]:
			rs = f.read(mb*10) #10MB
			vers = getVer(rs)
		if not vers[1]:
			rs = f.read(mb*50) #50MB
			vers = getVer(rs)
		if not vers[1]:
			rs = f.read(mb*100) #100MB
			vers = getVer(rs)
		if not vers[1]:
			rs = f.read(mb*300) #300MB
			vers = getVer(rs)
		if not vers[1]:
			rs = f.read() #read all
			vers = getVer(rs)
		
		if vers[1]:
			# adjust version info
			cvList = vers[0].split('.')
			del cvList[2:]
			createdVer = '.'.join(cvList)
			savedVer = vers[1]
			# return value
			print 'Created: ' + getAppName(createdVer) +'(v'+ vers[0] + '), Saved: ' + getAppName(savedVer) +'(v'+ savedVer + ')'
		
	else :
		print >> sys.stderr, 'Usage: python aiver.py illustrator-file(ai,eps)'
		sys.exit()			
else :
	print >> sys.stderr, 'Usage: python aiver.py illustrator-file(ai,eps)'
	sys.exit(2)

Python3用→　aiver3.py