Create a simple parser

Question

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Hi.

I have to develop a simple parser, to read "block" of text
for example:

C#

/TEST
 {. text .}
/TEST_DATA
 {. infs .}

and, I need to read informations of inside of label....
and... the file with have this informations... have a lot of labels, with the same perfil

for example:

C#

/TEST
 {. text .}
/TEST_DATA
 {. infs .}

/LBL1
 {. text .}
/LBL1_DATA
 {. infs .}

/LBL2
 {. text .}
/LBL2_DATA
 {. infs .}

/LBL3
 {. text .}
/LBL3_DATA
 {. infs .}

i need to read the block of specif label, for example:

parseFile("FileName.txt", LBL1)

and the function, return for me, the text of inside the blocks: LBL1 and LBL1_DATA
or, return for me, the content of LBL1 and LBL1_DATA

Thanks.

Posted 18-Jun-12 7:44am

Alexandre Bencz

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Comments

ZurdoDev 18-Jun-12 14:21pm

You'll have to write the code to parse it and check each line for what you are looking for. What have you done so far?

nv3 18-Jun-12 14:22pm

So, what have you tried and where did you get stuck?

Sergey Alexandrovich Kryukov 18-Jun-12 15:24pm

Not clear what's the problem. How about using "Improve question" above?
--SA

2 solutions

Solution 1

Looks fairly simple to start with, just check each line for a starting / then strip the following code that is delimited by { and }. Maybe you should clarify exactly what part of this you are having difficulty with.

Posted 18-Jun-12 9:13am

Richard MacCutchan

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Binu MD · Accepted Answer · 2012-06-18T15:23:00

Solution 2

you can start like this

C#

typedef struct
{
  char* text;
  void* data;
}DATA_INFO;

DATA_INFO& parseFile("FileName.txt", char* label )
{
  char* currentline;
  Openfile;
  getline( currentline );
  remove / from currentline; 
  comparestring( label, currentline );
  {
    DATA_INFO structinfo;
    structinfo.text = read text;
    skip line;
    structinfo.data = read data;
    return structinfo;
  } 
};

And clarify where you have doubt.

Posted 18-Jun-12 15:23pm

Binu MD

Updated 19-Jun-12 14:37pm

v3

Comments

Richard MacCutchan 19-Jun-12 3:56am

Please use <pre> tags around source code.

Richard MacCutchan 19-Jun-12 8:36am

Still wrong - did you look at what the result was?

Binu MD 19-Jun-12 20:38pm

updated, thanks for your comment.