From cd76a7ae64b82c2001476548a8c5c70873045083 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Thu, 10 Mar 2016 10:27:14 +0100
Subject: systemunit.pas aufgeräumt
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---
 systemunit.pas | 30 +++++++++++-------------------
 1 file changed, 11 insertions(+), 19 deletions(-)

diff --git a/systemunit.pas b/systemunit.pas
index 763c8db..d4ec24b 100644
--- a/systemunit.pas
+++ b/systemunit.pas
@@ -36,19 +36,16 @@ begin
   reset(procstat);
   while not eof(procstat) do begin
     readln(procstat,s);
-    if pos('cpu ',s)=1 then break;
+    if startetMit('cpu ',s) then break;
+    s:='';
   end;
   closefile(procstat);
-  if pos('cpu ',s)<>1 then exit;
-  delete(s,1,pos(' ',s));
-  s:=trim(s);
+  if s='' then exit;
   used:=0;
   idle:=0;
   for i:=0 to 3 do begin
     used:=used+idle;
-    idle:=strtoint(copy(s,1,pos(' ',s)-1));
-    delete(s,1,pos(' ',s));
-    s:=trim(s);
+    idle:=strtoint(erstesArgument(s));
   end;
   result:=(used-_cpuLastUsed)/max(1,used-_cpuLastUsed + idle-_cpuLastIdle);
   _cpuLastUsed:=used;
@@ -66,8 +63,8 @@ begin
   reset(procstat);
   while not eof(procstat) do begin
     readln(procstat,s);
-    if (pos('cpu',s)=1) and
-       (pos('cpu ',s)<>1) then
+    if (not startetMit('cpu ',s)) and
+       startetMit('cpu',s) then
       inc(result);
   end;
   closefile(procstat);
@@ -90,8 +87,8 @@ begin
  reset(f);
  while not eof(f) do begin
    readln(f,s);
-   if (leftStr(s,4)='Rss:') and (rightStr(s,3)=' kB') then
-     result:=result+strtoint(trim(copy(s,5,length(s)-4-3)));
+   if startetMit('Rss:',s) and (endetMit('kB',s) or endetMit('KB',s)) then
+     result:=result+strtoint(s);
  end;
  closefile(f);
 end;
@@ -108,10 +105,7 @@ begin
  reset(f);
  while not eof(f) do begin
    readln(f,s);
-   if (leftStr(s,10)='cache size') and (rightStr(s,3)=' kB') then begin
-     delete(s,1,pos(':',s));
-     delete(s,length(s)-2,3);
-     s:=trim(s);
+   if startetMit('cache',s) and startetMit('size',s) and startetMit(':',s) and (endetMit('KB',s) or endetMit('kB',s)) then begin
      if result=0 then result:=strtoint(s)
      else result:=min(result,strtoint(s));
    end;
@@ -125,10 +119,8 @@ var
 begin
   result:=s;
   while pos('${',result)>0 do begin
-    s:=leftStr(result,pos('${',result)-1);
-    delete(result,1,pos('${',result)-1+length('${'));
-    name:=leftStr(result,pos('}',result)-1);
-    delete(result,1,length(name+'}'));
+    s:=erstesArgument(result,'${',false);
+    name:=erstesArgument(result,'}',false);
     result:=s+GetEnvironmentVariable(name)+result;
   end;
 end;
-- 
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