ns_getcsv(n)

Name

ns_getcsv - Parse CSV Files

Table Of Contents

• Table Of Contents
• Synopsis
• Description
• COMMANDS
• OPTIONS
• EXAMPLES
• See Also
• Keywords

Synopsis

Description

This command parses lines of CSV files.

COMMANDS

ns_getcsv ?-delimiter value? ?-quotechar value? ?-trim? ?--? channelId varname

Read a single tuple (line) from an open CSV file (denoted by channelId) and parse the results into the Tcl list variable named in the last argument (varname). The command returns the number of parsed fields or -1 on end of file.

OPTIONS

-delimiter value

The delimiter (single character string) for separating fields. Default: ,

-quotechar value

The single character string for wrapping fields. It is especially needed, when the field contains a delimiter. If the field contains a quotechar, it has to be repeated (two quote characters in sequence). Default: "

-trim

Trim whitespace from unquoted fields.

EXAMPLES

Example script from regression test:

 set csvFile test.csv
 set f [open $csvFile]
 
 while {1} {
     set r [ns_getcsv -trim $f line]
     switch $r {
         -1       {break}
          0       {}
          default {lappend lines $line}
     }
 }
 close $f
 set lines

Result:

{aaa bbb ccc} {aaa {b
bb} ccc} {zzz yyy xxx} {1 2 3} {includes(\")quote {quoted includes (") quote}} {elm2 {} empty} single {last3 empty {} {} {}}}

sample.cvs

"aaa","bbb","ccc"
"aaa","b
bb","ccc"
zzz,yyy,xxx
 1 , 2 , 3 
includes(")quote,"quoted includes ("") quote"
elm2,,empty
single
last3,empty,,,

See Also

ns_db

Keywords

csv, escape, quote