104 lines
3.2 KiB
Python
104 lines
3.2 KiB
Python
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# -*- coding: utf-8 -*-
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#*****************************************************************************
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# Copyright (C) 2006 Jorgen Stenarson. <jorgen.stenarson@bostream.nu>
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#
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# Distributed under the terms of the BSD License. The full license is in
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# the file COPYING, distributed as part of this software.
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#*****************************************************************************
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import re,operator
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def str_find_all(str,ch):
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result=[]
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index=0
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while index>=0:
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index=str.find(ch,index)
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if index>=0:
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result.append(index)
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index+=1
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return result
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word_pattern=re.compile("(x*)")
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def markwords(str,iswordfun):
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markers={True:"x",False:"o"}
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return "".join([markers[iswordfun(ch)] for ch in str])
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def split_words(str,iswordfun):
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return [x for x in word_pattern.split(markwords(str,iswordfun)) if x !=""]
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def mark_start_segment(str,is_segment):
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def mark_start(s):
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if s[0:1]=="x":
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return "s"+s[1:]
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else:
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return s
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return "".join(map(mark_start,split_words(str,is_segment)))
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def mark_end_segment(str,is_segment):
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def mark_start(s):
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if s[0:1]=="x":
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return s[:-1]+"s"
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else:
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return s
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return "".join(map(mark_start,split_words(str,is_segment)))
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def mark_start_segment_index(str,is_segment):
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return str_find_all(mark_start_segment(str,is_segment),"s")
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def mark_end_segment_index(str,is_segment):
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return [x+1 for x in str_find_all(mark_end_segment(str,is_segment),"s")]
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################ Following are used in lineobj ###########################
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def is_word_token(str):
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return not is_non_word_token(str)
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def is_non_word_token(str):
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if len(str)!=1 or str in " \t\n":
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return True
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else:
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return False
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def next_start_segment(str,is_segment):
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str="".join(str)
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result=[]
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for start in mark_start_segment_index(str,is_segment):
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result[len(result):start]=[start for x in range(start-len(result))]
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result[len(result):len(str)]=[len(str) for x in range(len(str)-len(result)+1)]
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return result
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def next_end_segment(str,is_segment):
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str="".join(str)
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result=[]
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for start in mark_end_segment_index(str,is_segment):
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result[len(result):start]=[start for x in range(start-len(result))]
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result[len(result):len(str)]=[len(str) for x in range(len(str)-len(result)+1)]
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return result
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def prev_start_segment(str,is_segment):
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str="".join(str)
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result=[]
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prev=0
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for start in mark_start_segment_index(str,is_segment):
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result[len(result):start+1]=[prev for x in range(start-len(result)+1)]
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prev=start
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result[len(result):len(str)]=[prev for x in range(len(str)-len(result)+1)]
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return result
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def prev_end_segment(str,is_segment):
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str="".join(str)
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result=[]
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prev=0
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for start in mark_end_segment_index(str,is_segment):
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result[len(result):start+1]=[prev for x in range(start-len(result)+1)]
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prev=start
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result[len(result):len(str)]=[len(str) for x in range(len(str)-len(result)+1)]
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return result
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