Read a defined block from text file

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Simon
Simon on 27 Dec 2016
Answered: Image Analyst on 27 Dec 2016
Hello,
I like to read text from a text file with following structure:
Random Text
over several
lines
item(
name="Item1",
note="Note1",
coef=(
DATA(1, 2, 3, [11, 12, 21, 22]),
DATA(4, 5, 6, [44, 45, 54, 55])
),
author="Name1"
)
item(
name="Item2",
note="Note2",
coef=(
DATA(1, 2, 3, [11, 12, 21, 22]),
DATA(4, 5, 6, [44, 45, 54, 55])
),
author="Name2"
)
...
The structure is always the same (sometimes author is missing; DATA with 3 numbers and a vector is always stored in item). I thought I can use something like fscanf(fileID,'item(%s)') and split the text again. However, this does not work (returns an empty string).
The file is very big; looping through with fgetl and using if and strcmp works, but is very slow.

Answers (1)

Image Analyst
Image Analyst on 27 Dec 2016
Maybe try to read the whole file into one array with fread() and then do your parsing on the array. It should be faster than a bunch of disk accesses.

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