GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  RTBL_SET_COLUMN_AFFIX_BY_ID (3)

NAME

rtbl_create, rtbl_destroy, rtbl_set_flags, rtbl_get_flags, rtbl_set_prefix, rtbl_set_separator, rtbl_set_column_prefix, rtbl_set_column_affix_by_id, rtbl_add_column, rtbl_add_column_by_id, rtbl_add_column_entry, rtbl_add_column_entry_by_id, rtbl_new_row, rtbl_format - format data in simple tables

CONTENTS

Library
Synopsis
Description
Examples

LIBRARY

The roken library (libroken, -lroken)

SYNOPSIS


.In rtbl.h int rtbl_add_column rtbl_t table const char *column_name unsigned int flags int rtbl_add_column_by_id rtbl_t table unsigned int column_id const char *column_header unsigned int flags int rtbl_add_column_entry rtbl_t table const char *column_name const char *cell_entry int rtbl_add_column_entry_by_id rtbl_t table unsigned int column_id const char *cell_entry rtbl_t rtbl_create void void rtbl_destroy rtbl_t table int rtbl_new_row rtbl_t table int rtbl_set_column_affix_by_id rtbl_t table unsigned int column_id const char *prefix const char *suffix int rtbl_set_column_prefix rtbl_t table const char *column_name const char *prefix unsigned int rtbl_get_flags rtbl_t table void rtbl_set_flags rtbl_t table unsigned int flags int rtbl_set_prefix rtbl_t table const char *prefix int rtbl_set_separator rtbl_t table const char *separator int rtbl_format rtbl_t table FILE *file

DESCRIPTION

This set of functions assemble a simple table consisting of rows and columns, allowing it to be printed with certain options. Typical use would be output from tools such as ls(1) or netstat(1), where you have a fixed number of columns, but don’t know the column widths before hand.

A table is created with rtbl_create and destroyed with rtbl_destroy.

Global flags on the table are set with rtbl_set_flags and retrieved with rtbl_get_flags. At present the only defined flag is RTBL_HEADER_STYLE_NONE which suppresses printing the header.

Before adding data to the table, one or more columns need to be created. This would normally be done with rtbl_add_column_by_id, column_id is any number of your choice (it’s used only to identify columns), column_header is the header to print at the top of the column, and flags are flags specific to this column. Currently the only defined flag is RTBL_ALIGN_RIGHT, aligning column entries to the right. Columns are printed in the order they are added.

There’s also a way to add columns by column name with rtbl_add_column, but this is less flexible (you need unique header names), and is considered deprecated.

To add data to a column you use rtbl_add_column_entry_by_id, where the column_id is the same as when the column was added (adding data to a non-existent column is undefined), and cell_entry is whatever string you wish to include in that cell. It should not include newlines. For columns added with rtbl_add_column you must use rtbl_add_column_entry instead.

rtbl_new_row fills all columns with blank entries until they all have the same number of rows.

Each column can have a separate prefix and suffix, set with rtbl_set_column_affix_by_id; rtbl_set_column_prefix allows setting the prefix only by column name. In addition to this, columns may be separated by a string set with rtbl_set_separator( by default columns are not seprated by anything).

The finished table is printed to file with rtbl_format.

EXAMPLES

This program:
#include <stdio.h>
#include <rtbl.h>
int
main(int argc, char **argv)
{
    rtbl_t table;
    table = rtbl_create();
    rtbl_set_separator(table, "  ");
    rtbl_add_column_by_id(table, 0, "Column A", 0);
    rtbl_add_column_by_id(table, 1, "Column B", RTBL_ALIGN_RIGHT);
    rtbl_add_column_by_id(table, 2, "Column C", 0);
    rtbl_add_column_entry_by_id(table, 0, "A-1");
    rtbl_add_column_entry_by_id(table, 0, "A-2");
    rtbl_add_column_entry_by_id(table, 0, "A-3");
    rtbl_add_column_entry_by_id(table, 1, "B-1");
    rtbl_add_column_entry_by_id(table, 2, "C-1");
    rtbl_add_column_entry_by_id(table, 2, "C-2");
    rtbl_add_column_entry_by_id(table, 1, "B-2");
    rtbl_add_column_entry_by_id(table, 1, "B-3");
    rtbl_add_column_entry_by_id(table, 2, "C-3");
    rtbl_add_column_entry_by_id(table, 0, "A-4");
    rtbl_new_row(table);
    rtbl_add_column_entry_by_id(table, 1, "B-4");
    rtbl_new_row(table);
    rtbl_add_column_entry_by_id(table, 2, "C-4");
    rtbl_new_row(table);
    rtbl_format(table, stdout);
    rtbl_destroy(table);
    return 0;
}

will output the following:

Column A  Column B  Column C
A-1            B-1  C-1
A-2            B-2  C-2
A-3            B-3  C-3
A-4
               B-4
                    C-4

Search for    or go to Top of page |  Section 3 |  Main Index


Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.