Any one know how to do this? thank
Write a simple text-formatting program that produces neatly printed
output from input text containing embedded command lines that
determine how to format the output; all lines begin with a period are
command lines. The task of the program is to collect words from input
lines, fill output lines with those words, adjust the margins, and
print the result. Your programs should handle the commands shown in
Table 1 and should make use of functions.
Table 1 Text formatting commands for Lab #2
Command
..ce n
..ce
..in ±n
..in n
..in
..po ±n
..po n
..po
..ll n
..ll
..ls n
..ls
..sp n
..sp
..ad
..na
Description
Centre the next n lines (n might be 0)
Centre the next line
Increase (decrease) the indentation by n spaces
Set the indentation to n spaces
Reset indentation to default (0 spaces)
Increase (decrease) the left margin (page offset) by n spaces
Set the left margin (page offset) to n spaces
Reset margin to default (10 spaces)
Set line length to n spaces
Reset line length to default (100 spaces)
Set interline spacing to n (n = 2 gives double spacing)
Reset to single spacing
Put (n * CurrentLineSpac ing) blank lines in the output
Put (1 * CurrentLineSpac ing) blank lines in the output
Start adjustment of right margin (default; works in fill mode only)
Stop adjustment of right margin
When the program is filling output lines with input words, it is said
to be operating in fill mode. When not operating in fill mode, lines
should be printed exactly as they appear in the input. When operating
in fill mode, the program also may have to pad each output line evenly
with blank characters to produce a straight right margin; the program
is said to be operating in adjust mode when operating in this manner.
When not in adjust mode, the program will fill output lines but the
right margin will be jagged.
Your program should begin execution using the following default
values: line length is 100 characters, line spacing is 1 (single
spacing), margin is 10 characters, indentation level is 0 characters.
The program begins execution in fill mode, adjusting the right margin.
These defaults should remain in effect until changed by the
appropriate commands. A period, question mark, or exclamation point
should be followed by 2 blank spaces in the output, unless it is at
the end of an output line. A new paragraph should be separated from
the previous by an extra CurrentLineSpac ing lines.
