WordFind
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| 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
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WordFind v2.0
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Multi-features string function.
Strings:
"[word+1][delimiter][word+2][delimiter][word+3]..."
"[delimiter][word+1][delimiter][word+2][delimiter]..."
"[delimiter][delimiter][word+1][delimiter][delimiter][delimiter]..."
"...[word-3][delimiter][word-2][delimiter][word-1]"
"...[delimiter][word-2][delimiter][word-1][delimiter]"
"...[delimiter][delimiter][word-1][delimiter][delimiter][delimiter]"
Syntax:
${WordFind} "[string]" "[delimiter]" "[E][options]" $var
"[string]" ;[string]
; input string
"[delimiter]" ;[delimiter]
; one or several symbols
"[E][options]" ;[options]
; +number : word number from start
; -number : word number from end
; +number} : delimiter number from start
; all space after this
; delimiter to output
; +number{ : delimiter number from start
; all space before this
; delimiter to output
; +number}} : word number from start
; all space after this word
; to output
; +number{{ : word number from start
; 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
; * : sum of delimiters to output
; /word : number of word to output
;
;[E]
; with errorlevel output
; IfErrors:
; $var=1 delimiter not found
; $var=2 no such word number
; $var=3 syntax error (Use: +1,-1},#,*,/word,...)
;[]
; no errorlevel output (default)
; If some errors found then (result=input string)
;
$var ;output (result)
Note:
-Accepted numbers 1,01,001,...
Example (Find word by number):
Section ${WordFind} "C:\io.sys C:\Program Files C:\WINDOWS" " C:\" "-02" $R0 ; $R0="Program Files" SectionEnd
Example (Delimiter exclude):
Section ${WordFind} "C:\io.sys C:\logo.sys C:\WINDOWS" "sys" "-2}" $R0 ; $R0=" C:\logo.sys C:\WINDOWS" SectionEnd
Example (Sum of words):
Section ${WordFind} "C:\io.sys C:\logo.sys C:\WINDOWS" " C:\" "#" $R0 ; $R0="3" SectionEnd
Example (Sum of delimiters):
Section ${WordFind} "C:\io.sys C:\logo.sys C:\WINDOWS" "sys" "*" $R0 ; $R0="2" SectionEnd
Example (Find word number):
Section ${WordFind} "C:\io.sys C:\Program Files C:\WINDOWS" " " "/Files" $R0 ; $R0="3" SectionEnd
Example ( }} ):
Section ${WordFind} "C:\io.sys C:\logo.sys C:\WINDOWS" " " "+2}}" $R0 ; $R0=" C:\WINDOWS" SectionEnd
Example ( {} ):
Section ${WordFind} "C:\io.sys C:\logo.sys C:\WINDOWS" " " "+2{}" $R0 ; $R0="C:\io.sys C:\WINDOWS" SectionEnd
Example ( *} ):
Section ${WordFind} "C:\io.sys C:\logo.sys C:\WINDOWS" " " "+2*}" $R0 ; $R0="C:\logo.sys C:\WINDOWS" SectionEnd
Example (Get parent directory):
Section StrCpy $R0 "C:\Program Files\NSIS\NSIS.chm" ; "C:\Program Files\NSIS\Include\" ; "C:\\Program Files\\NSIS\\NSIS.chm" ${WordFind} "$R0" "\" "-2{*" $R0 ; $R0="C:\Program Files\NSIS" ; "C:\\Program Files\\NSIS" SectionEnd
Example (Coordinates):
Section ${WordFind} "C:\io.sys C:\logo.sys C:\WINDOWS" ":\lo" "E+1{" $R0 ; $R0="C:\io.sys C" IfErrors end StrLen $0 $R0 ; $0 = Start position of word (11) StrLen $1 ':\lo' ; $1 = Word leght (4) ; StrCpy $R0 $R1 $1 $0 ; $R0 = :\lo end: SectionEnd
Example (With errorlevel output):
Section ${WordFind} "[string]" "[delimiter]" "E[options]" $R0 IfErrors 0 end StrCmp $R0 1 0 +2 ; errorlevel 1? MessageBox MB_OK 'delimiter not found' IDOK end StrCmp $R0 2 0 +2 ; errorlevel 2? MessageBox MB_OK 'no such word number' IDOK end StrCmp $R0 3 0 +2 ; errorlevel 3? MessageBox MB_OK 'syntax error' end: SectionEnd
Example (Without errorlevel output):
Section ${WordFind} "C:\io.sys C:\logo.sys" "_" "+1" $R0 ; $R0="C:\io.sys C:\logo.sys" (error: delimiter "_" not found) SectionEnd
Example (If found):
Section ${WordFind} "C:\io.sys C:\logo.sys" ":\lo" "E+1{" $R0 IfErrors notfound found found: MessageBox MB_OK 'Found' IDOK end notfound: MessageBox MB_OK 'Not found' end: SectionEnd
Example (If found 2):
Section ${WordFind} "C:\io.sys C:\logo.sys" ":\lo" "+1{" $R0 StrCmp $R0 "C:\io.sys C:\logo.sys" notfound found ; error? found: MessageBox MB_OK 'Found' IDOK end notfound: MessageBox MB_OK 'Not found' end: SectionEnd
Example (To accept one word in string if delimiter not found):
Section StrCpy $0 'OneWord' StrCpy $1 1 loop: ${WordFind} "$0" " " "E+$1" $R0 IfErrors 0 code StrCmp $1$R0 11 0 error StrCpy $R0 $0 goto end code: ; ... IntOp $1 $1 + 1 goto loop error: StrCpy $1 '' StrCpy $R0 '' end: ; $R0="OneWord" SectionEnd
Function Code
Function WordFind !define WordFind `!insertmacro WordFindCall` !macro WordFindCall _STRING _DELIMITER _OPTION _RESULT Push `${_STRING}` Push `${_DELIMITER}` Push `${_OPTION}` Call WordFind Pop ${_RESULT} !macroend Exch $1 Exch Exch $0 Exch Exch 2 Exch $R0 Exch 2 Push $2 Push $3 Push $4 Push $5 Push $6 Push $7 Push $8 Push $9 Push $R1 ClearErrors StrCpy $9 '' StrCpy $2 $1 1 StrCpy $1 $1 '' 1 StrCmp $2 'E' 0 +3 StrCpy $9 E goto -4 StrCpy $3 '' StrCmp $2 '+' +6 StrCmp $2 '-' +5 StrCmp $2 '/' restart StrCmp $2 '#' restart StrCmp $2 '*' restart goto error3 StrCpy $4 $1 1 -1 StrCmp $4 '*' +4 StrCmp $4 '}' +3 StrCmp $4 '{' +2 goto +4 StrCpy $1 $1 -1 StrCpy $3 '$4$3' goto -7 StrCmp $3 '*' error3 StrCmp $3 '**' error3 StrCmp $3 '}{' error3 IntOp $1 $1 + 0 StrCmp $1 0 error2 restart: StrCmp $R0 '' error1 StrCpy $4 0 StrCpy $5 0 StrCpy $6 0 StrLen $7 $0 goto loop preloop: IntOp $6 $6 + 1 loop: StrCpy $8 $R0 $7 $6 StrCmp $8$5 0 error1 StrCmp $8 '' +2 StrCmp $8 $0 +5 preloop StrCmp $3 '{' minus StrCmp $3 '}' minus StrCmp $2 '*' minus StrCmp $5 $6 minus +5 StrCmp $3 '{' +4 StrCmp $3 '}' +3 StrCmp $2 '*' +2 StrCmp $5 $6 nextword IntOp $4 $4 + 1 StrCmp $2$4 +$1 plus StrCmp $2 '/' 0 nextword IntOp $8 $6 - $5 StrCpy $8 $R0 $8 $5 StrCmp $1 $8 0 nextword StrCpy $R1 $4 goto end nextword: IntOp $6 $6 + $7 StrCpy $5 $6 goto loop minus: StrCmp $2 '-' 0 sum StrCpy $2 '+' IntOp $1 $4 - $1 IntOp $1 $1 + 1 IntCmp $1 0 error2 error2 restart sum: StrCmp $2 '#' 0 sumdelim StrCpy $R1 $4 goto end sumdelim: StrCmp $2 '*' 0 error2 StrCpy $R1 $4 goto end plus: StrCmp $3 '' 0 +4 IntOp $6 $6 - $5 StrCpy $R1 $R0 $6 $5 goto end StrCmp $3 '{' 0 +3 StrCpy $R1 $R0 $6 goto end StrCmp $3 '}' 0 +4 IntOp $6 $6 + $7 StrCpy $R1 $R0 '' $6 goto end StrCmp $3 '{*' +2 StrCmp $3 '*{' 0 +3 StrCpy $R1 $R0 $6 goto end StrCmp $3 '*}' +2 StrCmp $3 '}*' 0 +3 StrCpy $R1 $R0 '' $5 goto end StrCmp $3 '}}' 0 +3 StrCpy $R1 $R0 '' $6 goto end StrCmp $3 '{{' 0 +3 StrCpy $R1 $R0 $5 goto end StrCmp $3 '{}' 0 error3 StrLen $3 $R0 StrCmp $3 $6 0 +3 StrCpy $0 '' goto +2 IntOp $6 $6 + $7 StrCpy $8 $R0 '' $6 StrCmp $4$8 1 +6 StrCmp $4 1 +2 +7 IntOp $6 $6 + $7 StrCpy $3 $R0 $7 $6 StrCmp $3 '' +2 StrCmp $3 $0 -3 +3 StrCpy $R1 '' goto end StrCmp $5 0 0 +3 StrCpy $0 '' goto +2 IntOp $5 $5 - $7 StrCpy $3 $R0 $5 StrCpy $R1 '$3$0$8' goto end error3: StrCpy $R1 3 goto error error2: StrCpy $R1 2 goto error error1: StrCpy $R1 1 error: StrCmp $9 'E' 0 +3 SetErrors end: StrCpy $R0 $R1 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
