47 lines
1.7 KiB
HTML
47 lines
1.7 KiB
HTML
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<HTML>
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<HEAD><TITLE>QuickBASIC 3.0 - Long Entry</TITLE></HEAD>
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<BODY>
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<A HREF="ng157f1.html">[<<Previous Entry]</A>
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<A HREF="ng320.html">[^^Up^^]</A>
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<A HREF="ng15fe6.html">[Next Entry>>]</A>
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<A HREF="menu.html" >[Menu]</A>
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<A HREF="info.html">[About The Guide]</A>
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<HR>
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<PRE>
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<B>INSTR Find Substring</B>
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<B>INSTR</B>([<U>start</U>,] <U>stringexp1</U>,<U>stringexp2</U>)
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Returns the character position within a string at which a substring is
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found.
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<U>stringexp1</U> The string to be scanned.
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<U>stringexp2</U> The substring to be searched for.
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<U>start</U> A numeric expression in the range 1 to 255; an optional
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offset from which to start searching.
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----------------------------------------------------------------------
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<B>Notes:</B> If <U>start</U> is specified, BASIC begins searching at the
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character at offset <U>start</U> (The first character in the
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string is at offset 1). Whether or not <U>start</U> is specified,
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INSTR returns the position at which <U>stringexp2</U> is found--
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relative to the first character in the string (not to
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<U>start</U>).
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If <U>stringexp1</U> is null or if <U>start</U> is greater than
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LEN(<U>stringexp1</U>), INSTR returns 0.
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If <U>stringexp2</U> is null, then INSTR returns 1 (if <U>start</U> was
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specified, then INSTR returns <U>start</U>.
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</PRE>
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<HR>
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This page created by ng2html v1.05, the Norton guide to HTML conversion utility.
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Written by <A HREF="http://www.acemake.com/hagbard">Dave Pearson</A>
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<HR>
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</BODY>
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</HTML>
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