[Lazarus] reading FORTRAN-style input in Lazarus

[Marco van de Voort]

On Fri, Aug 05, 2011 at 08:55:39AM +0000, Mark Morgan Lloyd wrote:
> A few months ago I was reading lots of SNMP MIBs (sming format), and 
> wrote a parser using a Meta-2 derivative. However in the general case, 
> and particularly for line-oriented input, it's probably a job for either 
> regexes or an (as yet unwritten) equivalent to format() etc. However, 
> error recovery (when a line departs from the accepted format part-way 
> through) is not going to be easy.

sscanf's like constructs are also a possibility. ARRAY OF CONST is strong enough to
implement it.
 
> What scripting languages can be embedded in FPC/Lazarus these days? If 
> an embedded language was called for each line would the overhead be 
> excessive?

For this you need a simple interpreter statemachine. For fixed width values,
even regex is overkill.