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./guide update.pro
| update |
procedure update |
Only applicable if the loaded index file has had new rows written to it. This method need not be used (is called internally) when working in online mode: filein, 'filename', /online If line mode is on (!g.line is 1) then this updates the global line io object, otherwise, it sets the global continuum object.
; note that we are NOT in online mode >filein, 'filename' ; immediatly display contents before online index file has changed >list ; call update before anything has changed > update >'Online index file has not changed' >list ; here you see the original contents of 'filename' ; now wait for end of next scan >update >"Online index file has 96 new lines." >list ; followed by all the contents, including last scan, of 'filename' ; NOTE: the same can be done using online mode: >filein, 'filename', /online ; display before end of next scan >list >'Online index file has not changed' ; followed by original contents ; wait for end of next scan >list >'Online index file has 96 new lines." ; followed by original + last scan contents