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Top Forums Shell Programming and Scripting Combine multiple lines in single line Post 302466441 by The One on Tuesday 26th of October 2010 11:24:00 AM
Old 10-26-2010
Quote:
Originally Posted by DGPickett
Code:
sed '
  :loop
  $b
  N
  /: .*\n.*: /{
    P
    s/.*\n//
    b loop
   }
  s/ *\n */ /
  b loop
 '

Narrative: This is what I call a sed looper, reading it's own lies after the first rather than exiting the script at the end to get the next line:
  1. declare a branch target 'loop',
  2. if last line, print and exit,
  3. If the two lines in the buffer each have ': ', print out the first line and go back to 'loop' to get another line.
  4. Remove the linefeed and any adjacent spaces in favor of a single space.
  5. Go back to 'loop' to get another line.
you really are a genius! I wanted to learn more in this as im using this kind of text editing frequently. Do you know any reference on this kind of sed function where i can learn more?
 

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voice_set_playmode(3alleg4)					  Allegro manual				       voice_set_playmode(3alleg4)

NAME
voice_set_playmode - Adjusts the loop status of the specified voice. Allegro game programming library. SYNOPSIS
#include <allegro.h> void voice_set_playmode(int voice, int playmode); DESCRIPTION
Adjusts the loop status of the specified voice. This can be done while the voice is playing, so you can start a sample in looped mode (hav- ing set the loop start and end positions to the appropriate values), and then clear the loop flag when you want to end the sound, which will cause it to continue past the loop end, play the subsequent part of the sample, and finish in the normal way. The mode parameter is a bitfield containing the following values: PLAYMODE_PLAY Plays the sample a single time. This is the default if you don't set the loop flag. PLAYMODE_LOOP Loops repeatedly through the sample, jumping back to the loop start position upon reaching the loop end. PLAYMODE_FORWARD Plays the sample from beginning to end. This is the default if you don't set the backward flag. PLAYMODE_BACKWARD Reverses the direction of the sample. If you combine this with the loop flag, the sample jumps to the loop end position upon reaching the loop start (ie. you do not need to reverse the loop start and end values when you play the sample in reverse). PLAYMODE_BIDIR When used in combination with the loop flag, causes the sample to change direction each time it reaches one of the loop points, so it alternates between playing forwards and in reverse. SEE ALSO
Allegro version 4.4.2 voice_set_playmode(3alleg4)
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