Asc: Difference between revisions
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Line 74: | Line 74: | ||
Asc.Do: | Asc.Do: | ||
IntFmt $2 %c $0 | IntFmt $2 %c $0 | ||
StrCmp $ | System::Call 'kernel32::lstrcmpA(t, t) i(r1,r2) .r3' | ||
StrCmp $3 "0" Asc.Exit | |||
IntOp $0 $0 + 1 | IntOp $0 $0 + 1 | ||
StrCmp $0 256 0 Asc.Do | StrCmp $0 256 0 Asc.Do | ||
StrCpy $0 "-1" | StrCpy $0 "-1" | ||
Asc.Exit: | Asc.Exit: |
Revision as of 20:39, 16 July 2005
Author: nechai (talk, contrib) |
Description
Returns an Integer representing the character code corresponding to the first letter in a string.
Syntax
${Asc} "String" "String" ; string argument Stack 1 ; Ascii code
Usage
${Asc} "a" Pop $0 ; returns 65 ${Asc} "bb" Pop $0 ; returns 66
The Function
Function Asc ; Returns an Integer representing the character code corresponding to the first letter in a string. ; ; Syntax: ; ${Asc} "String" ; ; "String" ; string argument ; ; Stack 1 ; Ascii code ; ; e.g. ; ${Asc} "a" ; Pop $0 ; returns 65 ; ${Asc} "bb" ; Pop $0 ; returns 66 ; !define Asc `!insertmacro AscCall` !macro AscCall _STRING ; save global registers Push $0 Push $1 Push $2 Push $3 Push $4 Push $5 Push $6 Push $7 Push $8 Push $9 ; store parameter Push `${_STRING}` Call Asc ; restore global register Pop $9 Pop $8 Pop $7 Pop $6 Pop $5 Pop $4 Pop $3 Pop $2 Pop $1 Exch $0 !macroend ; get parameter Pop $1 ; CHAR StrCpy $1 $1 1 IntOp $0 0 + 0 Asc.Do: IntFmt $2 %c $0 System::Call 'kernel32::lstrcmpA(t, t) i(r1,r2) .r3' StrCmp $3 "0" Asc.Exit IntOp $0 $0 + 1 StrCmp $0 256 0 Asc.Do StrCpy $0 "-1" Asc.Exit: FunctionEnd