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CD ROM Paradise Collection 4
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CD ROM Paradise Collection 4 1995 Nov.iso
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STRINGS.SWG
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0045_Trim LEFT side of STRING.pas
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Pascal/Delphi Source File
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1993-09-26
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1KB
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39 lines
{*****************************************************************************
* Function ...... LTrim()
* Purpose ....... To trim a character off the left side of a string
* Parameters .... s String to trim
* c Character to trim from <s>
* Returns ....... <s> with all characters <c> removed from the left side
* Notes ......... None
* Author ........ Martin Richardson
* Date .......... October 2, 1992
*****************************************************************************}
FUNCTION LTrim( s: STRING; c: CHAR ): STRING; Assembler;
ASM
PUSH DS
LDS SI, s
XOR AX, AX
LODSB
XCHG AX, CX
LES DI, @Result
INC DI
JCXZ @@2
MOV BL, c
CLD
@@1: LODSB
CMP AL, BL
LOOPE @@1
DEC SI
INC CX
REP MOVSB
@@2: XCHG AX, DI
MOV DI, WORD PTR @Result
SUB AX, DI
DEC AX
STOSB
POP DS
END;