+def checkProgAlternatives(description, progs, rc_entry = [], alt_rc_entry = [], path = [], not_found = ''):
+ '''
+ The same as checkProg, but additionally, all found programs will be added
+ as alt_rc_entries
+ '''
+ # one rc entry for each progs plus not_found entry
+ if len(rc_entry) > 1 and len(rc_entry) != len(progs) + 1:
+ logger.error("rc entry should have one item or item for each prog and not_found.")
+ sys.exit(2)
+ logger.info('checking for ' + description + '...')
+ ## print '(' + ','.join(progs) + ')',
+ found_prime = False
+ real_ac_dir = ''
+ real_ac_word = not_found
+ for idx in range(len(progs)):
+ # ac_prog may have options, ac_word is the command name
+ ac_prog = progs[idx]
+ ac_word = ac_prog.split(' ')[0]
+ msg = '+checking for "' + ac_word + '"... '
+ path = os.environ["PATH"].split(os.pathsep) + path
+ extlist = ['']
+ if "PATHEXT" in os.environ:
+ extlist = extlist + os.environ["PATHEXT"].split(os.pathsep)
+ found_alt = False
+ for ac_dir in path:
+ for ext in extlist:
+ if os.path.isfile( os.path.join(ac_dir, ac_word + ext) ):
+ logger.info(msg + ' yes')
+ pr = re.compile(r'(\\\S+)(.*)$')
+ m = None
+ # write rc entries for this command
+ if found_prime == False:
+ if len(rc_entry) == 1:
+ addToRC(rc_entry[0].replace('%%', ac_prog))
+ elif len(rc_entry) > 1:
+ addToRC(rc_entry[idx].replace('%%', ac_prog))
+ real_ac_dir = ac_dir
+ real_ac_word = ac_word
+ found_prime = True
+ if len(alt_rc_entry) == 1:
+ alt_rc = alt_rc_entry[0]
+ if alt_rc == "":
+ # if no explicit alt_rc is given, construct one
+ m = pr.match(rc_entry[0])
+ if m:
+ alt_rc = m.group(1) + "_alternatives" + m.group(2)
+ addToRC(alt_rc.replace('%%', ac_prog))
+ elif len(alt_rc_entry) > 1:
+ alt_rc = alt_rc_entry[idx]
+ if alt_rc == "":
+ # if no explicit alt_rc is given, construct one
+ m = pr.match(rc_entry[idx])
+ if m:
+ alt_rc = m.group(1) + "_alternatives" + m.group(2)
+ addToRC(alt_rc.replace('%%', ac_prog))
+ found_alt = True
+ break
+ if found_alt:
+ break
+ if found_alt == False:
+ # if not successful
+ logger.info(msg + ' no')
+ if found_prime:
+ return [real_ac_dir, real_ac_word]
+ # write rc entries for 'not found'
+ if len(rc_entry) > 0: # the last one.
+ addToRC(rc_entry[-1].replace('%%', not_found))
+ return ['', not_found]
+
+
+def addAlternatives(rcs, alt_type):
+ '''
+ Returns a \\prog_alternatives string to be used as an alternative
+ rc entry. alt_type can be a string or a list of strings.
+ '''
+ r = re.compile(r'\\Format (\S+).*$')
+ m = None
+ alt = ''
+ alt_token = '\\%s_alternatives '
+ if isinstance(alt_type, str):
+ alt_tokens = [alt_token % alt_type]
+ else:
+ alt_tokens = map(lambda s: alt_token % s, alt_type)
+ for idxx in range(len(rcs)):
+ if len(rcs) == 1:
+ m = r.match(rcs[0])
+ if m:
+ alt = '\n'.join([s + m.group(1) + " %%" for s in alt_tokens])
+ elif len(rcs) > 1:
+ m = r.match(rcs[idxx])
+ if m:
+ if idxx > 0:
+ alt += '\n'
+ alt += '\n'.join([s + m.group(1) + " %%" for s in alt_tokens])
+ return alt
+
+
+def listAlternatives(progs, alt_type, rc_entry = []):
+ '''
+ Returns a list of \\prog_alternatives strings to be used as alternative
+ rc entries. alt_type can be a string or a list of strings.
+ '''
+ if len(rc_entry) > 1 and len(rc_entry) != len(progs) + 1:
+ logger.error("rc entry should have one item or item for each prog and not_found.")
+ sys.exit(2)
+ alt_rc_entry = []
+ for idx in range(len(progs)):
+ if len(rc_entry) == 1:
+ rcs = rc_entry[0].split('\n')
+ alt = addAlternatives(rcs, alt_type)
+ alt_rc_entry.insert(0, alt)
+ elif len(rc_entry) > 1:
+ rcs = rc_entry[idx].split('\n')
+ alt = addAlternatives(rcs, alt_type)
+ alt_rc_entry.insert(idx, alt)
+ return alt_rc_entry
+
+