Search for text in file: Difference between revisions

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<b>Changes:</b>
<b>Changes:</b>
13th January 2006 - Added ClearErrors (thanks Jenner Modesto)
13th January 2006 - Added ClearErrors (thanks Jenner Modesto)
13th July 2007 - Re-written.
15th December 2015 - Added functionallity for specific occurance line print


== Usage ==
== Usage ==
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Push C:\temp1.txt
Push C:\temp1.txt
Push hello
Push hello
Push 1 # line should be displayed for occurance number of the searched string, if empty string is passed or 0 the last occurance will be displayed
  Call FileSearch
  Call FileSearch
Pop $2 # the line number the string was found for specified occurance number
Pop $0 #Number of times found throughout
Pop $0 #Number of times found throughout
Pop $1 #Found at all? yes/no
Pop $1 #Number of lines found on
Pop $2 #Number of lines found in
StrCmp $0 0 +2
 
MessageBox MB_OK "$\"hello$\" string was found in the file $0 times on $1 lines and the first line was $2"
StrCmp $1 yes 0 +2
MessageBox MB_OK "$\"hello$\" was found in the file $0 times on $2 lines."
</highlight-nsis>
</highlight-nsis>


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<highlight-nsis>
<highlight-nsis>
Function FileSearch
Function FileSearch
Exch $0 ;search for
Pop $7 ;~~~~Piotrek occurance numberw
Exch $R0 ;search for
Exch
Exch
Exch $1 ;input file
Exch $R1 ;input file
Exch
Push $R2
Push $2
Push $R3
Push $3
Push $R4
Push $4
Push $R5
Push $5
Push $R6
Push $6
Push $R7
Push $7
Push $R8
Push $8
Push $R9
Push $9
 
Push $R0
 
  FileOpen $2 $1 r
   StrLen $R4 $R0
   StrLen $4 $0
   StrCpy $R7 0
   StrCpy $5 0
   StrCpy $R8 0
   StrCpy $7 no
   ;~~~~Piotrek start
   StrCpy $8 0
   StrCpy $9 0
   StrCpy $9 0
  ${If} $7 == ""
StrCpy $7 0 ; occurence number user specified
  ${EndIf}
  ;~~~~Piotrek end
   ClearErrors
   ClearErrors
loop_main:
  FileOpen $R2 $R1 r
  FileRead $2 $3
  IfErrors Done
  IfErrors done
IntOp $R0 $R0 + $9
  LoopRead:
  StrCpy $9 0
    ClearErrors
  StrCpy $5 0
    FileRead $R2 $R3
filter_top:
    IfErrors DoneRead
IntOp $5 $5 - 1
IntOp $9 $9 + 1 ;Piotrek
  StrCpy $6 $3 $4 $5
  StrCmp $6 "" loop_main
    IntOp $R7 $R7 + 1
  StrCmp $6 $0 0 filter_top
    StrCpy $R5 -1
  StrCpy $3 $3 $5
    StrCpy $R9 0
  StrCpy $5 0
StrCpy $7 yes
    LoopParse:
StrCpy $9 1
      IntOp $R5 $R5 + 1
IntOp $8 $8 + 1
      StrCpy $R6 $R3 $R4 $R5
Goto filter_top
      StrCmp $R6 "" 0 +4
done:
        StrCmp $R9 1 LoopRead
  FileClose $2
          IntOp $R7 $R7 - 1
   StrCpy $0 $8
          Goto LoopRead
  StrCpy $1 $7
  StrCpy $2 $R0
      StrCmp $R6 $R0 0 LoopParse
Pop $R0
        StrCpy $R9 1
Pop $9
        IntOp $R8 $R8 + 1
Pop $8
;~~~~Piotrek start
Pop $7
${If} $R8 == $7 ;if occurence is specified - outputs a specified occurence if not last occurence is output]
Pop $6
StrCpy $0 $9
Pop $5
StrCpy $7 "-1"
Pop $4
${ElseIf} $7 == 0
Pop $3
StrCpy $0 $9
Exch 2
${EndIf}
Exch $2 ;output number of lines
;~~~~Piotrek end
Exch 2
        Goto LoopParse
Exch
Exch $1 ;output yes/no
  DoneRead:
    FileClose $R2
   Done:
    StrCpy $R0 $R8
    StrCpy $R1 $R7
Pop $R9
Pop $R8
Pop $R7
Pop $R6
Pop $R5
Pop $R4
Pop $R3
Pop $R2
Exch $R1 ;number of lines found on
Exch
Exch
Exch $0 ;output count found
Exch $R0 ;output count found
Push $0 ;You need to pop that out after function call as first parameter ````Piotrek
FunctionEnd
FunctionEnd
</highlight-nsis>
</highlight-nsis>
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Written by me again for using with batch / log files.
Written by me again for using with batch / log files.


-Stu (Afrow UK)
Stu


[[Category:Text Files Manipulation Functions]]
[[Category:Text Files Manipulation Functions]]

Latest revision as of 07:28, 15 December 2015

Author: Afrow UK (talk, contrib)


Description

This function will search in a file for the specified string, and return some values.

Changes: 13th January 2006 - Added ClearErrors (thanks Jenner Modesto) 13th July 2007 - Re-written. 15th December 2015 - Added functionallity for specific occurance line print

Usage

Push C:\temp1.txt
Push hello
Push 1 # line should be displayed for occurance number of the searched string, if empty string is passed or 0 the last occurance will be displayed
 Call FileSearch
Pop $2 # the line number the string was found for specified occurance number
Pop $0 #Number of times found throughout
Pop $1 #Number of lines found on
StrCmp $0 0 +2
MessageBox MB_OK "$\"hello$\" string was found in the file $0 times on $1 lines and the first line was $2"

The Function

Function FileSearch
Pop $7 ;~~~~Piotrek occurance numberw
Exch $R0 ;search for
Exch
Exch $R1 ;input file
Push $R2
Push $R3
Push $R4
Push $R5
Push $R6
Push $R7
Push $R8
Push $R9
 
 
  StrLen $R4 $R0
  StrCpy $R7 0
  StrCpy $R8 0
  ;~~~~Piotrek start
  StrCpy $9 0
  ${If} $7 == ""
	StrCpy $7 0 ; occurence number user specified
  ${EndIf}
  ;~~~~Piotrek end
  ClearErrors
  FileOpen $R2 $R1 r
  IfErrors Done
 
  LoopRead:
    ClearErrors
    FileRead $R2 $R3
    IfErrors DoneRead
	IntOp $9 $9 + 1 ;Piotrek
 
    IntOp $R7 $R7 + 1
    StrCpy $R5 -1
    StrCpy $R9 0
 
    LoopParse:
      IntOp $R5 $R5 + 1
      StrCpy $R6 $R3 $R4 $R5
      StrCmp $R6 "" 0 +4
        StrCmp $R9 1 LoopRead
          IntOp $R7 $R7 - 1
          Goto LoopRead
 
      StrCmp $R6 $R0 0 LoopParse
        StrCpy $R9 1
        IntOp $R8 $R8 + 1
		;~~~~Piotrek start
		${If} $R8 == $7 ;if occurence is specified - outputs a specified occurence if not last occurence is output]
			StrCpy $0 $9
			StrCpy $7 "-1"
		${ElseIf} $7 == 0
			StrCpy $0 $9
		${EndIf}
		;~~~~Piotrek end
        Goto LoopParse
 
  DoneRead:
    FileClose $R2
  Done:
    StrCpy $R0 $R8
    StrCpy $R1 $R7
 
Pop $R9
Pop $R8
Pop $R7
Pop $R6
Pop $R5
Pop $R4
Pop $R3
Pop $R2
Exch $R1 ;number of lines found on
Exch
Exch $R0 ;output count found
Push $0 ;You need to pop that out after function call as first parameter ````Piotrek
FunctionEnd

Written by me again for using with batch / log files.

Stu

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