Function XML_ExpandLine

XMLConverter.py:558–600

(CommandCollection, src, srcXML, line)

def XML_ExpandLine(CommandCollection, src, srcXML, line):
    pos = 0
    while True:
        cmd_start = line.find('{{',pos)
        cmd_end   = line.find('}}',pos)
        next_start = line.find('{{',cmd_start+2)
        while next_start!=-1 and next_start<cmd_end:
            cmd_end = line.find('}}',cmd_end+2)
            next_start = line.find('{{',next_start+2)

        if cmd_start==-1 or cmd_end==-1 or cmd_start>cmd_end:
            break;
        
        dprint(__name__, 2, "XML_ExpandLine: {0}", line)
        
        cmd = line[cmd_start+2:cmd_end]
        if cmd[-1]!=')':
            dprint(__name__, 0, "XML_ExpandLine - closing bracket missing: {0} ", line)
        
        parts = cmd.split('(',1)
        cmd = parts[0]
        param = parts[1][:-1]  # remove ending bracket
        
        if hasattr(CCommandCollection, 'ATTRIB_'+cmd):  # expand line, work VAL, EVAL...
            
            try:
                param = XML_ExpandLine(CommandCollection, src, srcXML, param)  # expand any attributes in the parameter
                res = getattr(CommandCollection, 'ATTRIB_'+cmd)(src, srcXML, param)
                line = line[:cmd_start] + res + line[cmd_end+2:]
                pos = cmd_start+len(res)
            except:
                dprint(__name__, 0, "XML_ExpandLine - Error in {0}\n{1}", line, traceback.format_exc())
                line = line[:cmd_start] + "((ERROR:"+cmd+"))" + line[cmd_end+2:]
        
        elif hasattr(CCommandCollection, 'TREE_'+cmd):  # check other known cmds: COPY, CUT
            dprint(__name__, 2, "XML_ExpandLine - stumbled over {0} in line {1}", cmd, line)
            pos = cmd_end
        else:
            dprint(__name__, 0, "XML_ExpandLine - Found unknown cmd {0} in line {1}", cmd, line)
            line = line[:cmd_start] + "((UNKNOWN:"+cmd+"))" + line[cmd_end+2:]    
        
        dprint(__name__, 2, "XML_ExpandLine: {0} - done", line)
    return line