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Package Martel :: Module Parser |
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Implement Martel parsers.
The classes in this module are used by other Martel modules and not typically by external users.
There are two major parsers, 'Parser' and 'RecordParser.' The first is the standard one, which parses the file as one string in memory then generates the SAX events. The other reads a record at a time using a RecordReader and generates events after each read. The generated event callbacks are identical.
At some level, both parsers use "_do_callback" to convert mxTextTools tags into SAX events.
XXX finish this documentation
XXX need a better way to get closer to the likely error position when parsing.
XXX need to implement LocatorClasses | |
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HeaderFooterParser |
Header followed by 0 or more records followed by a footer |
MartelAttributeList |
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Parser |
Parse the input data all in memory |
RecordParser |
Parse the input data a record at a time |
Exceptions | |
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ParserException |
used when a parse cannot be done |
ParserIncompleteException |
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ParserPositionException |
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ParserRecordException |
used by the RecordParser when it can't read a record |
Function Summary | |
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internal function to convert the tagtable into ContentHandler events | |
internal function to convert the tagtable into ContentHandler events | |
parse the string with the tagtable and send the ContentHandler events |
Function Details |
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_do_callback(s, begin, end, taglist, cont_handler, attrlookup)internal function to convert the tagtable into ContentHandler events 's' is the input text 'begin' is the current position in the text 'end' is 1 past the last position of the text allowed to be parsed 'taglist' is the tag list from mxTextTools.parse 'cont_handler' is the SAX ContentHandler 'attrlookup' is a dict mapping the encoded tag name to the element info |
_do_dispatch_callback(s, begin, end, taglist, start_table_get, cont_handler, save_stack, end_table_get, attrlookup)internal function to convert the tagtable into ContentHandler events THIS IS A SPECIAL CASE FOR Dispatch.Dispatcher objects 's' is the input text 'begin' is the current position in the text 'end' is 1 past the last position of the text allowed to be parsed 'taglist' is the tag list from mxTextTools.parse 'start_table_get' is the Dispatcher._start_table 'cont_handler' is the Dispatcher 'end_table_get' is the Dispatcher._end_table 'cont_handler' is the SAX ContentHandler 'attrlookup' is a dict mapping the encoded tag name to the element info |
_parse_elements(s, tagtable, cont_handler, debug_level, attrlookup)parse the string with the tagtable and send the ContentHandler events Specifically, it sends the startElement, endElement and characters events but not startDocument and endDocument. |
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