09-18-2012
Thanks elixir, it works perfect.
regarding the \A, and \z, would u please guide me those two meaning.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a variable (say $A) and while passing it gets either a number or some other string. Now how can test (with if else) whether the variable is just a ne or something else ?
Thanks a lot to all in advance
C Saha (2 Replies)
Discussion started by: csaha
2 Replies
2. Shell Programming and Scripting
Hi,
I have a little Perl question.
I need to determine the last word in the following string:
h t t p://abc.def.com/hijklm
The output should be the string hijklm.
h t t p is of course http.
The string between the slashes always differs.
The string after the last slash always differs.... (4 Replies)
Discussion started by: ejdv
4 Replies
3. Shell Programming and Scripting
Hi there,
I tried and tried, but cannot solve this myself.
I have this string:
enterprises.alcatel.nmu.genos.alarmHandoff.alarmHandoffPurge.purgelistAlarmIds.0 = {alarmId=63868|friendlyName=Dortmund/r01sr1sl01/port#06-#01-Vc12|probableCause=Server Signal... (3 Replies)
Discussion started by: ejdv
3 Replies
4. Shell Programming and Scripting
Hi,
I am passing date string of format 'YYYYMMDD' to a ksh script.
Will I be able to get next valid date from the passed in string.
Example I pass '20100228' to the shell script, Is there a reverse date command to get '20100301' .i.e to convert '20100228' to date and get next date.... (5 Replies)
Discussion started by: bittoo
5 Replies
5. Shell Programming and Scripting
How to find a string which is entered in command promt is a valid unix command or not?.
Thanks in advance
~Saravana (2 Replies)
Discussion started by: tsaravanan
2 Replies
6. Shell Programming and Scripting
Possible filenames:
CDD_Whatever.txt
DDD_Whatever.txt
If the file prefix = CDD, I'd like to prefix every person ID (second column in my examples below) on the file with "c-"
If the file prefix = DDD, I'd like to prefix ever person ID with "d-"
Input:
Desired Output:
Any help... (2 Replies)
Discussion started by: lrluis
2 Replies
7. Shell Programming and Scripting
Hi Forum.
I tried to search the forum posts for an answer but I haven't been able to do so for what I'm trying to accomplish.
I have the following source file:
11936385~TFSA|11936385|4431|3401458067|10/09/1982|25.00|IBSBONUS|3200|||||CASH|
3401458067|1005|... (3 Replies)
Discussion started by: pchang
3 Replies
8. Shell Programming and Scripting
Hi All,
How to fetch the particular row based on my search command. For example
Source Column
Column A Column B
001,56123456
002,57123456
003,123456
Expected Output:
003,123456
To get this output I tried below mentioned function
grep '123456' filename.txt (4 Replies)
Discussion started by: suresh_target
4 Replies
9. Shell Programming and Scripting
Hi all,
I have date and time value in a string,
I want to check if it is a valid date and time.
Need help on this.
Thanks (7 Replies)
Discussion started by: Pratiksha Mehra
7 Replies
10. UNIX for Dummies Questions & Answers
Trying to find out how to discover if the first 2 characters of a string are "22"
Not sure how.
I could use
if ]; then echo "yes";fi
But I think that will only grab the pattern 22 and not the first 2 digits. (5 Replies)
Discussion started by: newbie2010
5 Replies
LEARN ABOUT OPENDARWIN
exspline
exspline(3alleg4) Allegro manual exspline(3alleg4)
NAME
exspline - Constructing smooth movement paths from spline curves. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
Example exspline
DESCRIPTION
This program demonstrates the use of spline curves to create smooth paths connecting a number of node points. This can be useful for con-
structing realistic motion and animations.
The technique is to connect the series of guide points p1..p(n) with spline curves from p1-p2, p2-p3, etc. Each spline must pass though
both of its guide points, so they must be used as the first and fourth of the spline control points. The fun bit is coming up with sensible
values for the second and third spline control points, such that the spline segments will have equal gradients where they meet. I came up
with the following solution:
For each guide point p(n), calculate the desired tangent to the curve at that point. I took this to be the vector p(n-1) -> p(n+1), which
can easily be calculated with the inverse tangent function, and gives decent looking results. One implication of this is that two dummy
guide points are needed at each end of the curve, which are used in the tangent calculations but not connected to the set of splines.
Having got these tangents, it becomes fairly easy to calculate the spline control points. For a spline between guide points p(a) and p(b),
the second control point should lie along the positive tangent from p(a), and the third control point should lie along the negative tangent
from p(b). How far they are placed along these tangents controls the shape of the curve: I found that applying a 'curviness' scaling factor
to the distance between p(a) and p(b) works well.
One thing to note about splines is that the generated points are not all equidistant. Instead they tend to bunch up nearer to the ends of
the spline, which means you will need to apply some fudges to get an object to move at a constant speed. On the other hand, in situations
where the curve has a noticeable change of direction at each guide point, the effect can be quite nice because it makes the object slow
down for the curve.
SEE ALSO
END_OF_MAIN(3alleg4), SCREEN_W(3alleg4), acquire_screen(3alleg4), alert(3alleg4), allegro_error(3alleg4), allegro_init(3alleg4), alle-
gro_message(3alleg4), calc_spline(3alleg4), circlefill(3alleg4), clear_keybuf(3alleg4), clear_to_color(3alleg4), desktop_palette(3alleg4),
fixatan2(3alleg4), fixcos(3alleg4), fixed(3alleg4), fixmul(3alleg4), fixsin(3alleg4), fixsqrt(3alleg4), fixtof(3alleg4), fixtoi(3alleg4),
font(3alleg4), ftofix(3alleg4), install_keyboard(3alleg4), install_mouse(3alleg4), install_timer(3alleg4), itofix(3alleg4), key(3alleg4),
keypressed(3alleg4), line(3alleg4), makecol(3alleg4), mouse_b(3alleg4), mouse_x(3alleg4), mouse_y(3alleg4), palette_color(3alleg4),
poll_mouse(3alleg4), readkey(3alleg4), release_screen(3alleg4), screen(3alleg4), set_gfx_mode(3alleg4), set_palette(3alleg4),
show_mouse(3alleg4), spline(3alleg4), textout_centre_ex(3alleg4), textprintf_centre_ex(3alleg4), textprintf_ex(3alleg4), vsync(3alleg4),
xor_mode(3alleg4)
Allegro version 4.4.2 exspline(3alleg4)