WordFind2X

Author: Instructor (talk, contrib)

Page for NSIS 2.07 and below users

You can use the latest version of headers (recommended) or the following function code (put the function code in your script before calling it)

Function Description

____________________________________________________________________________
 
                            WordFind2X v2.1
____________________________________________________________________________
 
 
Find word between two delimiters.
 
 
Strings:
"[delimiter1][word+1][delimiter2][delimiter1][word+2][delimiter2]..."
"[text][delimiter1][text][delimiter1][word+1][delimiter2][text]..."
"...[delimiter1][word-2][delimiter2][delimiter1][word-1][delimiter2]"
"...[text][delimiter1][text][delimiter1][word-1][delimiter2][text]"
 
Syntax:
${WordFind2X} "[string]" "[delimiter1]" "[delimiter2]" "[E][options]" $var
 
"[string]"         ;[string]
                   ;  input string
"[delimiter1]"     ;[delimiter1]
                   ;  first delimiter
"[delimiter2]"     ;[delimiter2]
                   ;  second delimiter
"[E][options]"     ;[options]
                   ;  +number   : word number from start
                   ;  -number   : word number from end
                   ;  +number}} : word number from start all space
                   ;              after this word to output
                   ;  +number{{ : word number from end all space
                   ;              before this word to output
                   ;  +number{} : word number from start
                   ;              all space before and after
                   ;              this word (word exclude)
                   ;  +number*} : word number from start
                   ;              all space after this
                   ;              word to output with word
                   ;  +number{* : word number from start
                   ;              all space before this
                   ;              word to output with word
                   ;  #         : sum of words to output
                   ;  /word     : number of word to output
                   ;
                   ;[E]
                   ;  with errorlevel output
                   ;  IfErrors:
                   ;     $var=1  no words found
                   ;     $var=2  no such word number
                   ;     $var=3  syntax error (Use: +1,-1,#)
                   ;[]
                   ;  no errorlevel output (default)
                   ;  If some errors found then (result=input string)
                   ;
$var               ;output (result)

Example (1):

Section
	${WordFind2X} "[C:\io.sys];[C:\logo.sys];[C:\WINDOWS]" "[C:\" "];" "+2" $R0
	; $R0="logo.sys"
SectionEnd

Example (2):

Section
	${WordFind2X} "C:\WINDOWS C:\io.sys C:\logo.sys" "\" "." "-1" $R0
	; $R0="logo"
SectionEnd

Example (3):

Section
	${WordFind2X} "C:\WINDOWS C:\io.sys C:\logo.sys" "\" "." "-1{{" $R0
	; $R0="C:\WINDOWS C:\io.sys C:"
SectionEnd

Example (4):

Section
	${WordFind2X} "C:\WINDOWS C:\io.sys C:\logo.sys" "\" "." "-1{}" $R0
	; $R0="C:\WINDOWS C:\io.sys C:sys"
SectionEnd

Example (5):

Section
	${WordFind2X} "C:\WINDOWS C:\io.sys C:\logo.sys" "\" "." "-1{*" $R0
	; $R0="C:\WINDOWS C:\io.sys C:\logo."
SectionEnd

Example (6):

Section
	${WordFind2X} "C:\WINDOWS C:\io.sys C:\logo.sys" "\" "." "/logo" $R0
	; $R0="2"
SectionEnd

Example (With errorlevel output):

Section
	${WordFind2X} "[io.sys];[C:\logo.sys]" "\" "];" "E+1" $R0
	; $R0="1" ("\...];" not found)
 
	IfErrors 0 noerrors
	MessageBox MB_OK 'Errorlevel=$R0' IDOK end
 
	noerrors:
	MessageBox MB_OK 'No errors'
 
	end:
SectionEnd

Function Code

Function WordFind2X
	!define WordFind2X `!insertmacro WordFind2XCall`
 
	!macro WordFind2XCall _STRING _DELIMITER1 _DELIMITER2 _NUMBER _RESULT
		Push `${_STRING}`
		Push `${_DELIMITER1}`
		Push `${_DELIMITER2}`
		Push `${_NUMBER}`
		Call WordFind2X
		Pop ${_RESULT}
	!macroend
 
	Exch $2
	Exch
	Exch $1
	Exch
	Exch 2
	Exch $0
	Exch 2
	Exch 3
	Exch $R0
	Exch 3
	Push $3
	Push $4
	Push $5
	Push $6
	Push $7
	Push $8
	Push $9
	Push $R1
	Push $R2
	ClearErrors
 
	StrCpy $R2 ''
	StrCpy $3 $2 1
	StrCpy $2 $2 '' 1
	StrCmp $3 'E' 0 +3
	StrCpy $R2 E
	goto -4
 
	StrCmp $3 '+' +5
	StrCmp $3 '-' +4
	StrCmp $3 '#' restart
	StrCmp $3 '/' restart
	goto error3
 
	StrCpy $4 $2 2 -2
	StrCmp $4 '{{' +9
	StrCmp $4 '}}' +8
	StrCmp $4 '{*' +7
	StrCmp $4 '*{' +6
	StrCmp $4 '*}' +5
	StrCmp $4 '}*' +4
	StrCmp $4 '{}' +3
	StrCpy $4 ''
	goto +2
	StrCpy $2 $2 -2
	IntOp $2 $2 + 0
	StrCmp $2 0 error2
 
	restart:
	StrCmp $R0 '' error1
	StrCpy $5 -1
	StrCpy $6 0
	StrCpy $7 ''
	StrLen $8 $0
	StrLen $9 $1
 
	loop:
	IntOp $5 $5 + 1
 
	delim1:
	StrCpy $R1 $R0 $8 $5
	StrCmp $R1$6 0 error1
	StrCmp $R1 '' minus
	StrCmp $R1 $0 +2
	StrCmp $7 '' loop delim2
	StrCmp $0 $1 0 +2
	StrCmp $7 '' 0 delim2
	IntOp $7 $5 + $8
	StrCpy $5 $7
	goto delim1
 
	delim2:
	StrCpy $R1 $R0 $9 $5
	StrCmp $R1 $1 0 loop
	IntOp $6 $6 + 1
	StrCmp $3$6 '+$2' plus
	StrCmp $3 '/' 0 nextword
	IntOp $R1 $5 - $7
	StrCpy $R1 $R0 $R1 $7
	StrCmp $R1 $2 0 +3
	StrCpy $R1 $6
	goto end
	nextword:
	IntOp $5 $5 + $9
	StrCpy $7 ''
	goto delim1
 
	minus:
	StrCmp $3 '-' 0 sum
	StrCpy $3 +
	IntOp $2 $6 - $2
	IntOp $2 $2 + 1
	IntCmp $2 0 error2 error2 restart
	sum:
	StrCmp $3 '#' 0 error2
	StrCpy $R1 $6
	goto end
 
	plus:
	StrCmp $4 '' 0 +4
	IntOp $R1 $5 - $7
	StrCpy $R1 $R0 $R1 $7
	goto end
	IntOp $5 $5 + $9
	IntOp $7 $7 - $8
	StrCmp $4 '{*' +2
	StrCmp $4 '*{' 0 +3
	StrCpy $R1 $R0 $5
	goto end
	StrCmp $4 '*}' +2
	StrCmp $4 '}*' 0 +3
	StrCpy $R1 $R0 '' $7
	goto end
	StrCmp $4 '}}' 0 +3
	StrCpy $R1 $R0 '' $5
	goto end
	StrCmp $4 '{{' 0 +3
	StrCpy $R1 $R0 $7
	goto end
	StrCmp $4 '{}' 0 error3
	StrCpy $5 $R0 '' $5
	StrCpy $7 $R0 $7
	StrCpy $R1 '$7$5'
	goto end
 
	error3:
	StrCpy $R1 3
	goto error
	error2:
	StrCpy $R1 2
	goto error
	error1:
	StrCpy $R1 1
	error:
	StrCmp $R2 'E' 0 +3
	SetErrors
 
	end:
	StrCpy $R0 $R1
 
	Pop $R2
	Pop $R1
	Pop $9
	Pop $8
	Pop $7
	Pop $6
	Pop $5
	Pop $4
	Pop $3
	Pop $2
	Pop $1
	Pop $0
	Exch $R0
FunctionEnd