VersionCheckNew: Compare version numbers: Difference between revisions
From NSIS Wiki
Jump to navigationJump to search
m (Added category links.) |
m (Adding new author and category links.) |
||
Line 1: | Line 1: | ||
{{PageAuthor|Afrow UK}} | |||
== Description == | == Description == | ||
This was made after [http://forums.winamp.com/showthread.php?postid=1513073 this topic] where RobGrant found that the old VersionCheck function would fail on version numbers like 6 and 6.0 (it would say 6 is lower than 6.0). | This was made after [http://forums.winamp.com/showthread.php?postid=1513073 this topic] where RobGrant found that the old VersionCheck function would fail on version numbers like 6 and 6.0 (it would say 6 is lower than 6.0). | ||
Line 148: | Line 146: | ||
-Stu (Afrow UK) | -Stu (Afrow UK) | ||
[[ | [[Category:Version Manipulation Functions]] |
Revision as of 14:05, 24 June 2005
Author: Afrow UK (talk, contrib) |
Description
This was made after this topic where RobGrant found that the old VersionCheck function would fail on version numbers like 6 and 6.0 (it would say 6 is lower than 6.0).
Tested Version Numbers
Current VersionCheck function will compare the following version strings successfully...
- "3.1.0" "3.10.0"
- "0.6" "6"
- "6.0" "6"
- "5.1.1.0" "5.1.1.0"
- "9.1" "9.1.9"
- "1.01" "1.10"
- "2.5.09" "2.5"
- "2.5.9" "2.5.01"
- "7" "10.0.0.3646"
- "1" "11"
- "91.1.1.1" "101.1.1.1"
- "1.001" "1.0"
Usage
${VersionCheckNew} "version 1" "version 2" "$[output variable]"
Example
${VersionCheckNew} "1.0.1" "1.1.0" "$R0" MessageBox MB_OK "Return value: $R0" ;outputs 2
Output values
Output | Meaning |
0 | Versions are equal |
1 | Version 1 is newer |
2 | Version 2 is newer |
The Function (and Macro)
!macro VersionCheckV5 Ver1 Ver2 OutVar Push "${Ver1}" Push "${Ver2}" Call VersionCheckV5 Pop "${OutVar}" !macroend !define VersionCheckV5 "!insertmacro VersionCheckV5" Function VersionCheckV5 Exch $R0 ; second version number Exch Exch $R1 ; first version number Push $R2 Push $R3 Push $R4 Push $R5 ; second version part Push $R6 ; first version part StrCpy $R1 $R1. StrCpy $R0 $R0. Next: StrCmp $R0$R1 "" 0 +3 StrCpy $R0 0 Goto Done StrCmp $R0 "" 0 +2 StrCpy $R0 0. StrCmp $R1 "" 0 +2 StrCpy $R1 0. StrCpy $R2 0 IntOp $R2 $R2 + 1 StrCpy $R4 $R1 1 $R2 StrCmp $R4 . 0 -2 StrCpy $R6 $R1 $R2 IntOp $R2 $R2 + 1 StrCpy $R1 $R1 "" $R2 StrCpy $R2 0 IntOp $R2 $R2 + 1 StrCpy $R4 $R0 1 $R2 StrCmp $R4 . 0 -2 StrCpy $R5 $R0 $R2 IntOp $R2 $R2 + 1 StrCpy $R0 $R0 "" $R2 IntCmp $R5 0 Compare IntCmp $R6 0 Compare StrCpy $R3 0 StrCpy $R4 $R6 1 $R3 IntOp $R3 $R3 + 1 StrCmp $R4 0 -2 StrCpy $R2 0 StrCpy $R4 $R5 1 $R2 IntOp $R2 $R2 + 1 StrCmp $R4 0 -2 IntCmp $R3 $R2 0 +2 +4 Compare: IntCmp 1$R5 1$R6 Next 0 +3 StrCpy $R0 1 Goto Done StrCpy $R0 2 Done: Pop $R6 Pop $R5 Pop $R4 Pop $R3 Pop $R2 Pop $R1 Exch $R0 ; output FunctionEnd
Version History
- v5: 28 March 05
- Re-wrote code again after a lot of thinking :p. Was failing for 1 and 11 (would say 1 was bigger than 11!)
- Changed function name to VersionCheckV5
- Fixed small bug (thanks Instructor!)
- v4: 22 March 05
- Check per digit would fail on 10.0 and 7.0 (thanks Daijoubu; it would say 1st was smaller).
The code has now been replaced with a more advanced method.
- Check per digit would fail on 10.0 and 7.0 (thanks Daijoubu; it would say 1st was smaller).
- v3: 13 Feb 05
- Added check per digit per number.
- Changed function name back to VersionCheckNew.
- v2: 10 Jan 05
- Re-written whole function.
- Changed function name to VersionCheckNew2.
- v1: 9 Dec 04
- First version.
Bug Reports
If you find any problems, please send me a Private Message via the NSIS forums.
-Stu (Afrow UK)