!macro FileSearch SOURCE_FILE SEARCH_TEXT
  Push ${SOURCE_FILE}
  Push ${SEARCH_TEXT}
  Call FileSearch
  Pop $0 #Number of times found throughout
  Pop $1 #Found at all? yes/no
  Pop $2 #Number of lines found in
!macroend

Function FileSearch
Exch $0 ;search for
Exch
Exch $1 ;input file
Exch
Push $2
Push $3
Push $4
Push $5
Push $6
Push $7
Push $8
Push $9
Push $R0
  FileOpen $2 $1 r
  StrLen $4 $0
  StrCpy $5 0
  StrCpy $7 no
  StrCpy $8 0
  StrCpy $9 0
loop_main:
  FileRead $2 $3
  IfErrors done
 IntOp $R0 $R0 + $9
  StrCpy $9 0
  StrCpy $5 0
filter_top:
 IntOp $5 $5 - 1
  StrCpy $6 $3 $4 $5
  StrCmp $6 "" loop_main
  StrCmp $6 $0 0 filter_top
  StrCpy $3 $3 $5
  StrCpy $5 0
 StrCpy $7 yes
 StrCpy $9 1
 IntOp $8 $8 + 1
Goto filter_top
done:
  FileClose $2
  StrCpy $0 $8
  StrCpy $1 $7
  StrCpy $2 $R0
Pop $R0
Pop $9
Pop $8
Pop $7
Pop $6
Pop $5
Pop $4
Pop $3
Exch 2
Exch $2 ;output number of lines
Exch 2
Exch
Exch $1 ;output yes/no
Exch
Exch $0 ;output count found
FunctionEnd