| # ${StrContains} OUT STRING SUBSTRING |
| # A method which searches a target string for a substring (case insensitive), |
| # setting OUT to 1 if found, 0 otherwise. |
| |
| Var strContains_string |
| Var strContains_substring |
| Var strContains_stringLen |
| Var strContains_substringLen |
| Var strContains_loopStartOffset |
| Var strContains_loopLastOffset |
| Var strContains_loopSubstring |
| Var strContains_returnValue |
| |
| Function StrContains |
| Pop $strContains_substring |
| Pop $strContains_string |
| StrCpy $strContains_returnValue 0 |
| |
| StrLen $strContains_stringLen $strContains_string |
| StrLen $strContains_substringLen $strContains_substring |
| |
| StrCpy $strContains_loopStartOffset 0 |
| IntOp $strContains_loopLastOffset $strContains_stringLen - $strContains_substringLen |
| |
| # If we're searching for "ing" in "string", we search for "ing" against |
| # "str", "tri", "rin", and finally "ing" |
| loop: |
| IntCmp $strContains_loopStartOffset $strContains_loopLastOffset 0 0 done |
| |
| StrCpy $strContains_loopSubstring $strContains_string $strContains_substringLen $strContains_loopStartOffset |
| StrCmp $strContains_loopSubstring $strContains_substring found |
| |
| IntOp $strContains_loopStartOffset $strContains_loopStartOffset + 1 |
| Goto loop |
| |
| found: |
| StrCpy $strContains_returnValue 1 |
| |
| done: |
| Push $strContains_returnValue |
| FunctionEnd |
| |
| !macro StrContains OUT STRING SUBSTRING |
| Push `${STRING}` |
| Push `${SUBSTRING}` |
| Call StrContains |
| Pop `${OUT}` |
| !macroend |
| |
| !define StrContains '!insertmacro StrContains' |
