TCl-Tk How to catch floating point numbers from a file -


i'm finding troubles working on file containing floating numbers. these rows file:

174259  1.264944 -.194235 4.1509e-5 174260  1.264287 -.191802 3.9e-2  174261  1.266468 -.190813 3.9899e-2 174262  1.267116 -.193e-3 4.2452e-2

what i'm trying find row desire number (e.g "174260") , extract following 3 numbers.

this code:

set output [open "output3.txt" w] set fileinput     [open "input.txt" r]  set filecontent [read $fileinput] set inputlist [split $filecontent "\n"]  set desire 174260 set findelem [lsearch -all -inline $inputlist $desire*]  set coordinate [ regexp -inline -all {\s+} $findelem ]  set x1 [lindex $coordinate 1] set y1 [lindex $coordinate 2] set z1 [lindex $coordinate 3]  puts  $output  "$x1 $y1 $z1"

using regexp method string "{\s+}" obtain last character curly brackets:

 1.264287 -.191802 3.9e-2}

i don't know how extract numbers value , not entire string.

i'd tempted in case go simplest possible option.

set output [open "output3.txt" w] set fileinput [open "input.txt" r]  set desire 174260  while {[gets $fileinput line] >= 0} {     lassign [regexp -inline -all {\s+} $line] key x1 y2 z1     if {$key == $desire} {         puts $output "$x1 $y1 $z1"     } }  close $fileinput close $output

failing that, problem you're using lsearch -all -inline, returns list, , processing list string regexp. should handle using:

foreach found $findelem {     set coordinate [ regexp -inline -all {\s+} $found ]      set x1 [lindex $coordinate 1]     set y1 [lindex $coordinate 2]     set z1 [lindex $coordinate 3]      puts  $output  "$x1 $y1 $z1" }

this isn't understanding lines in first place, , working data 1 line @ time pretty trivial.


Comments

Post a Comment

Popular posts from this blog

c++ - Difference between pre and post decrement in recursive function argument -

i have following sample code used pre-decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(--c); cout << c << endl; return; } } this function give output input 4 : dp3 dp2 dp1 dp0 0 1 2 3 but when use post decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(c--); cout << c << endl; return; } } output goes in infinite loop dp4 can explain me in detail why happens ? this happens because function(c--) called same value of c , when finishes c decremented. recursively called, hence called same value no chance of return , hit stack overflow error. assume this, int x = 1, y = 0; y = x++ result y == 1 , x == 2. if y = ++x , bot x , y 2.
Read more

php - Nothing but 'run(); ' when browsing to my local project, how do I fix this? -

i added new project. made mistake in projectname.conf file in sites-available apache2, led me reinstalling apache2. after reinstalling , re-enabling projects on every page of every project .. <body> run(); </body> .. i've run composer update, restarted service, restarted pc, checked config files, tried disabling new project. there nothing in error log, , access.log: 127.0.0.1 - - [15/may/2015:01:40:47 +0200] "get / http/1.1" 304 181 "-" "mozilla/5.0 (x11; ubuntu; linux x86_64; rv:38.0) gecko/20100101 firefox/38.0" maybe i'm forgetting apache2 reinstall? don't think did different last time installed it. looks haven't setup php correctly. take @ this great guide , maybe you're forgetting link php config apache2.
Read more

php - How can I echo out this array? -

i don't know how go grabbing data in variable , put foreach loop. class tree{ private $info = array( array('name'=>'jim','state'=>'nu','company'=>'nu','phone'=>array('cell'=>'5615111111','office'=>'5611111111'),'email'=>array('primary'=>'exs@example.com','ex@there.com')), array('name'=>'joe smith','city'=>'phoenix','phone'=>'4805551111','email'=>'jsmith@some_email.com'), array('name'=>'john doe','city'=>'chandler','company'=>'doe co.','email'=>array('jdoe@gmail.com','personal'=>'email@email.com'),'phone'=>'6025550002') ); } if you're inside of class, can access private variable using $this->variablename . example, i...
Read more