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Top Forums Shell Programming and Scripting Subtract 100 from first field in long list? Simple manipulation? Post 83354 by LordJezo on Wednesday 14th of September 2005 08:51:02 AM
Old 09-14-2005
Subtract 100 from first field in long list? Simple manipulation?

It sounds so easy to do.

I have a file thats laid out like this..


number text text text text (etc about 15 times with various text fields)

I want to take the first field, "number", subtract 100 from it, and then put it back in the file. a simple little manipulation of the first field in the file.

is there an easy way to do this?

So if it looks like


14523 a b c d e f
24245 g h i j k l

it would end up being

14423 a b c d e f
24145 g h i j k
LordJezo
 

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PS_SET_TEXT_POS(3)							 1							PS_SET_TEXT_POS(3)

ps_set_text_pos - Sets position for text output

SYNOPSIS
bool ps_set_text_pos (resource $psdoc, float $x, float $y) DESCRIPTION
Set the position for the next text output. You may alternatively set the x and y value separately by calling ps_set_value(3) and choosing textx respectively texty as the value name. If you want to output text at a certain position it is more convenient to use ps_show_xy(3) instead of setting the text position and call- ing ps_show(3). PARAMETERS
o $psdoc - Resource identifier of the postscript file as returned by ps_new(3). o $x - x-coordinate of the new text position. o $y - y-coordinate of the new text position. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 Placing text at a given position <?php $ps = ps_new(); if (!ps_open_file($ps, "text.ps")) { print "Cannot open PostScript file "; exit; } ps_set_info($ps, "Creator", "rectangle.php"); ps_set_info($ps, "Author", "Uwe Steinmann"); ps_set_info($ps, "Title", "Text placement example"); ps_begin_page($ps, 596, 842); $psfont = ps_findfont($ps, "Helvetica", "", 0); ps_setfont($ps, $psfont, 8.0); ps_show_xy($ps, "Some text at (100, 100)", 100, 100); ps_set_value($ps, "textx", 100); ps_set_value($ps, "texty", 120); ps_show($ps, "Some text at (100, 120)"); ps_end_page($ps); ps_delete($ps); ?> SEE ALSO
ps_set_value(3), ps_show(3). PHP Documentation Group PS_SET_TEXT_POS(3)
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