zim-wiki team mailing list archive

[Pablo Angulo <pablo.angulo@xxxxxx>]

  Hello:
 I was finally able to change the notes from zim wiki format to trac
wiki format. Just in case other people is interested, I'll post my
solution, despite its defects.

 The following python code is a hack, and it might fail on some syntax.
I took a choice regarding links with categories: I decided to flatten
zim links like [[:Software:note taking:zim|zim]] to wiki entries like
[Software_note_taking_zim zim].

  To use it, call

python trac2zim.py notebook output_folder prefix

  where prefix is a string you put before each wiki page name. It will
fill output_folder with plain text files ready to be loaded with trac-admin:

trac-admin /path/to/project wiki load output_folder

 I'll wait for the python port, read Jaap's code, and rewrite in the
future as an additional export format, if no one does it before. But, on
the meantime, I'll use this hack and solve problems manually.

 Regards

#####################

# -*- coding: utf-8 -*-
import re
import sys
import os

#buscaCabeceras=re.compile('(={1:5})([^=]*)(={1:5})')
def flatten(linkName):
    '''Changes a zim link, possibly with categories, to a trac link
    
    it also removes accents and other spanish special characters
    '''
    #remove final ':' character and
    name=linkName[:-1] if linkName[-1]==':' else linkName
    return removeSpecialChars(name.replace(':','_').replace(' ','_'))
    
def removeSpecialChars(s):
    '''certain trac installation reported problems with special chars
    
    other trac systems loaded all files without problem
    
    the problem is only for file names and wiki pages names, not for content
    '''
    return
s.replace('á','a').replace('é','e').replace('í','i').replace('ó','o').replace('ú','u').replace('ñ','n').replace('Á','A').replace('É','E').replace('Í','I').replace('Ó','O').replace('Ú','U').replace('Ñ','ñ')

cabecera=re.compile("(={1,6})([^=\/]+?)(={1,6})")
inlineVerbatim=re.compile("''([^']+?)''")
#~ multilineVerbatim=re.compile("\n[\t](.+?)\n")
negrita=re.compile('\*\*([^\*]+?)\*\*')
italic=re.compile('\/\/([^\/\n\]]+?)\/\/')
bracketedURL=re.compile('\[\[(http:\/\/[^\|]+)\|([^\|]+?)\]\]')
#TODO: separar links relativos y absolutos
simpleRelLink=re.compile('\[\[([^:][^\|]+?)\]\]')
namedRelLink=re.compile('\[\[([^:][^\|]+?)\|([^\|]+?)\]\]')
simpleAbsLink=re.compile('\[\[:([^\|]+?)\]\]')
namedAbsLink=re.compile('\[\[:([^\|]+?)\|([^\|]+?)\]\]')
images=re.compile('([^\{])\{\{\/(.+?)\}\}')
def translate(nota,prefix1,prefix2):
    '''Takes a note in zim format and returns a note in trac format
    '''
    #duplicate all line breaks
    nota=nota.replace('\n','\n\n')
    # Headings
    mm=cabecera.search(nota)
    lista=[]
    lastIndex=0
    while mm:
        lista.append(nota[lastIndex:mm.start()])
        gg=mm.groups()
        iguales=len(gg[0])
        lista.append("="*(7-iguales)+gg[1]+"="*(7-iguales))
        lastIndex=mm.end()
        mm=cabecera.search(nota,lastIndex)
    lista.append(nota[lastIndex:])
    nota=''.join(lista)
 
    #inlineVerbatim
    nota=inlineVerbatim.sub("{{{\\1}}}",nota)
    #multiline verbatim
    #TODO
    #bold
    nota=negrita.sub("'''\\1'''",nota)
    #italic
    nota=italic.sub("''\\1''",nota)
    
    #bracketedURL
    nota = bracketedURL.sub("[\\1 \\2]",nota)
    #~ #simple links
    #~ nota=simpleLink.sub("[wiki:\\1]",nota)
    #~ #named links
    #~ nota=namedLink.sub("[wiki:\\1 \\2]",nota)
    #simple relative links
    mm=simpleRelLink.search(nota)
    lista=[]
    lastIndex=0
    while mm:
        lista.append(nota[lastIndex:mm.start()])
        gg0=mm.groups()[0]
        lista.append("[wiki:"+prefix1+prefix2+flatten(gg0)+" "+gg0+"]")
        lastIndex=mm.end()
        mm=simpleRelLink.search(nota,lastIndex)
    lista.append(nota[lastIndex:])
    nota=''.join(lista)
    
    mm=simpleAbsLink.search(nota)
    lista=[]
    lastIndex=0
    while mm:
        lista.append(nota[lastIndex:mm.start()])
        gg0=mm.groups()[0]
        lista.append("[wiki:"+prefix1+flatten(gg0)+" "+gg0+"]")
        lastIndex=mm.end()
        mm=simpleAbsLink.search(nota,lastIndex)
    lista.append(nota[lastIndex:])
    nota=''.join(lista)
    
    #named relativelinks
    mm=namedRelLink.search(nota)
    lista=[]
    lastIndex=0
    while mm:
        lista.append(nota[lastIndex:mm.start()])
        gg=mm.groups()
        lista.append("[wiki:"+prefix1+prefix2+flatten(gg[0])+" "+gg[1]+"]")
        lastIndex=mm.end()
        mm=namedRelLink.search(nota,lastIndex)
    lista.append(nota[lastIndex:])
    nota=''.join(lista)
    
    #named absolute links
    mm=namedAbsLink.search(nota)
    lista=[]
    lastIndex=0
    while mm:
        lista.append(nota[lastIndex:mm.start()])
        gg=mm.groups()
        lista.append("[wiki:"+prefix1+flatten(gg[0])+" "+gg[1]+"]")
        lastIndex=mm.end()
        mm=namedAbsLink.search(nota,lastIndex)
    lista.append(nota[lastIndex:])
    nota=''.join(lista)
    
    #lists
    nota=nota.replace('\n* ','\n * ')
    
    #images
    nota=images.sub("\\1[[Image(\\2)]]",nota)
    
    return nota

def processPath(pathin,pathout,prefix1,prefix2=''):
    for archivo in os.listdir(pathin):
        fullPath=os.path.join(pathin,archivo)
        if archivo[-3:]=='txt':
            fichero=open(fullPath,mode='r')
            nota=fichero.read()
            fichero.close()
            
            nota_out=translate(nota,prefix1,prefix2)
            
            #~ nameout= prefix+"_"+archivo[:-4] if prefix else archivo[:-4]
           
fichero=open(os.path.join(pathout,prefix1+prefix2+removeSpecialChars(archivo[:-4])),mode='w')
            fichero.write(nota_out)
            fichero.close()
        elif os.path.isdir(fullPath):
            print pathin,archivo,fullPath
           
processPath(fullPath,pathout,prefix1,prefix2+removeSpecialChars(archivo)+"_")
    
if __name__=='__main__':
    
    pathin=sys.argv[1]
    pathout=sys.argv[2]
    prefix=sys.argv[3]

    processPath(pathin,pathout,prefix)