Re: Data table text I/O package?
Dmitry A. Kazakov wrote:
There is a better technique to parse strings than to tokenize them first.
Get rid of scanner. Just take the date from the current position of the
string and advance the position to the first character following the date.
Because the procedure that gets the date knows the format it also knows
where the date ends. It can also support various concurrent formats,
provided that they are distinguishable. This way you can parse a string
virtually knowing nothing about the formats of its fields. An additional
advantage is that error messages (if it comes to a more advanced system)
will be pretty easy to generate.
IIUC, what you describe is a (more binary) DTD, either language-standardised
or proprietary.
And also, what does the sentence "don't scan a string, and don't
produce tokens, but advance [something] to the first character
following the date that was taken[?] form the string" mean,
other than a contradiction in terms?
.
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