A simple CSV Parser library written in C++
To know more about CSV - http://en.wikipedia.org/wiki/Comma-separated_values
Test cases borrowed from the same wiki
To know more about the RFC that governs CSV - http://tools.ietf.org/html/rfc4180
Usage:
The core files of this repository are
a. csv_parser.hpp
b. csv_parser.cpp
This library exposes two public methods both with the same name - "parse_line" albeit different signatures.
a. The first, accepts an input line and a vector of strings which contains the parsed contents of the input line
b. The second accepts an input line, a vector which contains the header names and a map which which contains as key a value from the header and the corresponding field obtained by parsing the input line Both these methods return a Boolean value that indicates whether the parsing was a success or a failure
A test file along with a sample CSV file is also included to test the library
The contents for the test being
a. test.cpp
b. test_case.csv
For more details on how to create the object of the class contained in csv_parser refer the file test.cpp
Compilation:
g++ -o csv_parser csv_parser.cpp test.cpp
Features: Handles every case except the embedded line quotes being present in the input line For instance, lines like these are not supported
1997,Ford,E350,"Go get one now
they are going fast"
Sample Output
A sample run for the test cases contained in test_case.csv is as follows
CSV line - 1997,Ford,E350
Field [0] - 1997
Field [1] - Ford
Field [2] - E350
CSV line - "1997","Ford","E350"
Field [0] - 1997
Field [1] - Ford
Field [2] - E350
CSV line - 1997,Ford,E350,"Super, luxurious truck"
Field [0] - 1997
Field [1] - Ford
Field [2] - E350
Field [3] - Super, luxurious truck
CSV line - 1997,Ford,E350,"Super, ""luxurious"" truck"
Field [0] - 1997
Field [1] - Ford
Field [2] - E350
Field [3] - Super, "luxurious" truck
CSV line - 1999,Chevy,"Venture ""Extended Edition""","",4900.00
Field [0] - 1999
Field [1] - Chevy
Field [2] - Venture "Extended Edition"
Field [3] -
Field [4] - 4900.00
CSV line - 1999,Chevy,"Venture ""Extended Edition, Very Large""",,5000.00
Field [0] - 1999
Field [1] - Chevy
Field [2] - Venture "Extended Edition, Very Large"
Field [3] -
Field [4] - 5000.00
CSV line -
Error encountered while parsing the input line
A test case around the second method is documented here
Key - Company ,Value - Ford
Key - Model ,Value - E350
Key - Year ,Value - 1997
Since its a map, the order is not the same as the one present in the input line
But its guaranteed the correct header will be mapped to the parsed input
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