1102 lines
21 KiB
HTML
1102 lines
21 KiB
HTML
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>string=, string/=, string<, string>, string<=, string>=, string-equal, string-not-equal, string-lessp, string-greaterp, string-not-greaterp, string-not-lessp | Common Lisp Nova Spec</TITLE
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>Common Lisp Nova Spec</A
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>16. Strings</A
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>→ <A HREF="16_2_Strings_Dictionary.html"
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>16.2 Strings Dictionary</A
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> <SPAN CLASS="breadcrumb-item"
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>→ <A HREF="f_string_eq.html"
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>string=, string/=, string<, string>, string<=, string>=, string-equal, string-not-equal, string-lessp, string-greaterp, string-not-greaterp, string-not-lessp</A
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></DIV
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><DIV CLASS="matter"
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><DIV CLASS="com"
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><TABLE WIDTH="100%" CELLSPACING="0" CELLPADDING="0"
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><TR
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><TD ALIGN="LEFT" VALIGN="BASELINE" WIDTH="100%" CLASS="name"
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><SPAN CLASS="idx" DATA-KIND="idxref" DATA-TERM="string=, string/=, string{$\spLT $}, string{$\spGT $}, string{$\spLT $}=, string{$\spGT $}=, string-equal, string-not-equal, string-lessp, string-greaterp, string-not-greaterp, string-not-lessp"
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></SPAN
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><B
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>string=, string/=, string</B
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><I
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><</I
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><B
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>, string</B
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><I
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>></I
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><B
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>, string</B
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><I
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><</I
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><B
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>=, string</B
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><I
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>></I
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><B
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>=, string-equal, string-not-equal, string-lessp, string-greaterp, string-not-greaterp, string-not-lessp</B
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></TD
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><TD ALIGN="RIGHT" VALIGN="BASELINE" WIDTH="0" NOWRAP="NOWRAP" CLASS="ftype"
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><I
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>Function</I
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></TD
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></TR
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></TABLE
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><HR
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></DIV
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><UL CLASS="subtoc"
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></UL
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><DL
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><DT
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><B
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>Syntax</B
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></DT
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><DD
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><P CLASS="j"
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><B
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>string</B
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>= <SPAN CLASS="cmssi"
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>string1</SPAN
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> <SPAN CLASS="cmssi"
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>string2</SPAN
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> <SPAN CLASS="cmtt"
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>&key</SPAN
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> <SPAN CLASS="cmssi"
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>start1</SPAN
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> <SPAN CLASS="cmssi"
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>end1</SPAN
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> <SPAN CLASS="cmssi"
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>start2</SPAN
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> <SPAN CLASS="cmssi"
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>end2</SPAN
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> <SPAN CLASS="arrow"
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>→</SPAN
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> <SPAN CLASS="cmssi"
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>generalized-boolean</SPAN
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></P
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><TABLE CELLSPACING="0" CELLPADDING="0" RULES="GROUPS" STYLE="margin: 1ex 0"
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
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><B
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>string/</B
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><SPAN CLASS="cmr"
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>=</SPAN
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> <SPAN CLASS="cmssi"
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>string1</SPAN
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> <SPAN CLASS="cmssi"
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>string2</SPAN
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> <SPAN CLASS="cmtt"
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>&key</SPAN
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> <SPAN CLASS="cmssi"
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>start1</SPAN
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> <SPAN CLASS="cmssi"
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>end1</SPAN
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> <SPAN CLASS="cmssi"
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>start2</SPAN
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> <SPAN CLASS="cmssi"
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>end2</SPAN
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></TD
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
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> <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> <SPAN CLASS="cmssi"
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>mismatch-index</SPAN
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></TD
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></TR
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><TR
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
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> <B
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>string</B
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><SPAN CLASS="cmtt"
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><</SPAN
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> <SPAN CLASS="cmssi"
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>string1</SPAN
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> <SPAN CLASS="cmssi"
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>string2</SPAN
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> <SPAN CLASS="cmtt"
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>&key</SPAN
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> <SPAN CLASS="cmssi"
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>start1</SPAN
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> <SPAN CLASS="cmssi"
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>end1</SPAN
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> <SPAN CLASS="cmssi"
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>start2</SPAN
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> <SPAN CLASS="cmssi"
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>end2</SPAN
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></TD
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
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> <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> <SPAN CLASS="cmssi"
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>mismatch-index</SPAN
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></TD
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></TR
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><TR
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
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> <B
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>string</B
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><SPAN CLASS="cmtt"
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>></SPAN
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> <SPAN CLASS="cmssi"
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>string1</SPAN
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> <SPAN CLASS="cmssi"
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>string2</SPAN
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> <SPAN CLASS="cmtt"
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>&key</SPAN
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> <SPAN CLASS="cmssi"
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>start1</SPAN
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> <SPAN CLASS="cmssi"
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>end1</SPAN
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> <SPAN CLASS="cmssi"
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>start2</SPAN
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> <SPAN CLASS="cmssi"
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>end2</SPAN
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></TD
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
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> <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
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> <SPAN CLASS="cmssi"
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>mismatch-index</SPAN
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></TD
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></TR
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><TR
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
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> <B
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>string</B
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><SPAN CLASS="cmtt"
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><</SPAN
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><SPAN CLASS="cmr"
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>=</SPAN
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> <SPAN CLASS="cmssi"
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>string1</SPAN
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> <SPAN CLASS="cmssi"
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>string2</SPAN
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> <SPAN CLASS="cmtt"
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>&key</SPAN
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> <SPAN CLASS="cmssi"
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>start1</SPAN
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> <SPAN CLASS="cmssi"
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>end1</SPAN
|
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> <SPAN CLASS="cmssi"
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>start2</SPAN
|
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> <SPAN CLASS="cmssi"
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>end2</SPAN
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></TD
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
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> <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
|
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></SPAN
|
||
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> <SPAN CLASS="cmssi"
|
||
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>mismatch-index</SPAN
|
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></TD
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></TR
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><TR
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
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> <B
|
||
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>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
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>></SPAN
|
||
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><SPAN CLASS="cmr"
|
||
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>=</SPAN
|
||
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> <SPAN CLASS="cmssi"
|
||
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>string1</SPAN
|
||
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> <SPAN CLASS="cmssi"
|
||
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>string2</SPAN
|
||
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> <SPAN CLASS="cmtt"
|
||
|
>&key</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>start1</SPAN
|
||
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> <SPAN CLASS="cmssi"
|
||
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>end1</SPAN
|
||
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> <SPAN CLASS="cmssi"
|
||
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>start2</SPAN
|
||
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> <SPAN CLASS="cmssi"
|
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>end2</SPAN
|
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></TD
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
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> <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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>→</SPAN
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></SPAN
|
||
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> <SPAN CLASS="cmssi"
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>mismatch-index</SPAN
|
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></TD
|
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></TR
|
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></TBODY
|
||
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></TABLE
|
||
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><P CLASS="j"
|
||
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><B
|
||
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>string-equal</B
|
||
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> <SPAN CLASS="cmssi"
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>string1</SPAN
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> <SPAN CLASS="cmssi"
|
||
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>string2</SPAN
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> <SPAN CLASS="cmtt"
|
||
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>&key</SPAN
|
||
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> <SPAN CLASS="cmssi"
|
||
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>start1</SPAN
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||
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> <SPAN CLASS="cmssi"
|
||
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>end1</SPAN
|
||
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> <SPAN CLASS="cmssi"
|
||
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>start2</SPAN
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> <SPAN CLASS="cmssi"
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>end2</SPAN
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> <SPAN CLASS="arrow"
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||
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>→</SPAN
|
||
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> <SPAN CLASS="cmssi"
|
||
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>generalized-boolean</SPAN
|
||
|
></P
|
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><TABLE CELLSPACING="0" CELLPADDING="0" RULES="GROUPS" STYLE="margin: 1ex 0"
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><TBODY
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><TR
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
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><B
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>string-not-equal</B
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> <SPAN CLASS="cmssi"
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>string1</SPAN
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> <SPAN CLASS="cmssi"
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>string2</SPAN
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> <SPAN CLASS="cmtt"
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>&key</SPAN
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> <SPAN CLASS="cmssi"
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>start1</SPAN
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> <SPAN CLASS="cmssi"
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||
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>end1</SPAN
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> <SPAN CLASS="cmssi"
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>start2</SPAN
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> <SPAN CLASS="cmssi"
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||
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>end2</SPAN
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></TD
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
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> <SPAN CLASS="cmsy"
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><SPAN CLASS="arrow"
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||
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>→</SPAN
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></SPAN
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||
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> <SPAN CLASS="cmssi"
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||
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>mismatch-index</SPAN
|
||
|
></TD
|
||
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></TR
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><TR
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
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||
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> <B
|
||
|
>string-lessp</B
|
||
|
> <SPAN CLASS="cmssi"
|
||
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>string1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>string2</SPAN
|
||
|
> <SPAN CLASS="cmtt"
|
||
|
>&key</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>start1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>end1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>start2</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>end2</SPAN
|
||
|
></TD
|
||
|
><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
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||
|
> <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
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>→</SPAN
|
||
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></SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>mismatch-index</SPAN
|
||
|
></TD
|
||
|
></TR
|
||
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><TR
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||
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><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
|
||
|
> <B
|
||
|
>string-greaterp</B
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>string1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>string2</SPAN
|
||
|
> <SPAN CLASS="cmtt"
|
||
|
>&key</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>start1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
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>end1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>start2</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>end2</SPAN
|
||
|
></TD
|
||
|
><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
|
||
|
> <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>mismatch-index</SPAN
|
||
|
></TD
|
||
|
></TR
|
||
|
><TR
|
||
|
><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
|
||
|
> <B
|
||
|
>string-not-greaterp</B
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>string1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>string2</SPAN
|
||
|
> <SPAN CLASS="cmtt"
|
||
|
>&key</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>start1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>end1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>start2</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
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>end2</SPAN
|
||
|
></TD
|
||
|
><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
|
||
|
> <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>mismatch-index</SPAN
|
||
|
></TD
|
||
|
></TR
|
||
|
><TR
|
||
|
><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE=";padding-right:3px"
|
||
|
> <B
|
||
|
>string-not-lessp</B
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>string1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>string2</SPAN
|
||
|
> <SPAN CLASS="cmtt"
|
||
|
>&key</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>start1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>end1</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>start2</SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>end2</SPAN
|
||
|
></TD
|
||
|
><TD ALIGN="LEFT" VALIGN="BASELINE" STYLE="padding-left:3px;"
|
||
|
> <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> <SPAN CLASS="cmssi"
|
||
|
>mismatch-index</SPAN
|
||
|
></TD
|
||
|
></TR
|
||
|
></TBODY
|
||
|
></TABLE
|
||
|
></DD
|
||
|
><DT
|
||
|
><B
|
||
|
>Arguments and Values</B
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><VAR CLASS="param"
|
||
|
>string1</VAR
|
||
|
> — a <A HREF="26_1_Glossary.html#string_designator"
|
||
|
><EM CLASS="term"
|
||
|
>string designator</EM
|
||
|
></A
|
||
|
>. </P
|
||
|
><P CLASS="j"
|
||
|
><VAR CLASS="param"
|
||
|
>string2</VAR
|
||
|
> — a <A HREF="26_1_Glossary.html#string_designator"
|
||
|
><EM CLASS="term"
|
||
|
>string designator</EM
|
||
|
></A
|
||
|
>. </P
|
||
|
><P CLASS="j"
|
||
|
><VAR CLASS="param"
|
||
|
>start1</VAR
|
||
|
>, <VAR CLASS="param"
|
||
|
>end1</VAR
|
||
|
> — <A HREF="26_1_Glossary.html#bounding_index_designator"
|
||
|
><EM CLASS="term"
|
||
|
>bounding index designators</EM
|
||
|
></A
|
||
|
> of <VAR CLASS="param"
|
||
|
>string1</VAR
|
||
|
>. The defaults for <VAR CLASS="param"
|
||
|
>start</VAR
|
||
|
> and <VAR CLASS="param"
|
||
|
>end</VAR
|
||
|
> are <CODE CLASS="f"
|
||
|
>0</CODE
|
||
|
> and <SPAN CLASS="misc"
|
||
|
><B
|
||
|
>nil</B
|
||
|
></SPAN
|
||
|
>, respectively. </P
|
||
|
><P CLASS="j"
|
||
|
><VAR CLASS="param"
|
||
|
>start2</VAR
|
||
|
>, <VAR CLASS="param"
|
||
|
>end2</VAR
|
||
|
> — <A HREF="26_1_Glossary.html#bounding_index_designator"
|
||
|
><EM CLASS="term"
|
||
|
>bounding index designators</EM
|
||
|
></A
|
||
|
> of <VAR CLASS="param"
|
||
|
>string2</VAR
|
||
|
>. The defaults for <VAR CLASS="param"
|
||
|
>start</VAR
|
||
|
> and <VAR CLASS="param"
|
||
|
>end</VAR
|
||
|
> are <CODE CLASS="f"
|
||
|
>0</CODE
|
||
|
> and <SPAN CLASS="misc"
|
||
|
><B
|
||
|
>nil</B
|
||
|
></SPAN
|
||
|
>, respectively. </P
|
||
|
><P CLASS="j"
|
||
|
><VAR CLASS="param"
|
||
|
>generalized-boolean</VAR
|
||
|
> — a <A HREF="26_1_Glossary.html#generalized_boolean"
|
||
|
><EM CLASS="term"
|
||
|
>generalized boolean</EM
|
||
|
></A
|
||
|
>. </P
|
||
|
><P CLASS="j"
|
||
|
><VAR CLASS="param"
|
||
|
>mismatch-index</VAR
|
||
|
> — a <A HREF="26_1_Glossary.html#bounding_index"
|
||
|
><EM CLASS="term"
|
||
|
>bounding index</EM
|
||
|
></A
|
||
|
> of <VAR CLASS="param"
|
||
|
>string1</VAR
|
||
|
>, or <SPAN CLASS="misc"
|
||
|
><B
|
||
|
>nil</B
|
||
|
></SPAN
|
||
|
>.</P
|
||
|
></DD
|
||
|
><DT
|
||
|
><B
|
||
|
>Description</B
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
>These functions perform lexicographic comparisons on <VAR CLASS="param"
|
||
|
>string1</VAR
|
||
|
> and <VAR CLASS="param"
|
||
|
>string2</VAR
|
||
|
>. <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string=</B
|
||
|
></A
|
||
|
> and <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string-equal</B
|
||
|
></A
|
||
|
> are called equality functions; the others are called inequality functions. The comparison operations these <A HREF="26_1_Glossary.html#function"
|
||
|
><EM CLASS="term"
|
||
|
>functions</EM
|
||
|
></A
|
||
|
> perform are restricted to the subsequence of <VAR CLASS="param"
|
||
|
>string1</VAR
|
||
|
> <A HREF="26_1_Glossary.html#bounded"
|
||
|
><EM CLASS="term"
|
||
|
>bounded</EM
|
||
|
></A
|
||
|
> by <EM CLASS="term"
|
||
|
>start1</EM
|
||
|
> and <VAR CLASS="param"
|
||
|
>end1</VAR
|
||
|
> and to the subsequence of <VAR CLASS="param"
|
||
|
>string2</VAR
|
||
|
> <A HREF="26_1_Glossary.html#bounded"
|
||
|
><EM CLASS="term"
|
||
|
>bounded</EM
|
||
|
></A
|
||
|
> by <EM CLASS="term"
|
||
|
>start2</EM
|
||
|
> and <VAR CLASS="param"
|
||
|
>end2</VAR
|
||
|
>. </P
|
||
|
><P CLASS="j"
|
||
|
>A string <I CLASS="i"
|
||
|
><I
|
||
|
>a</I
|
||
|
></I
|
||
|
> is equal to a string <I CLASS="i"
|
||
|
><I
|
||
|
>b</I
|
||
|
></I
|
||
|
> if it contains the same number of characters, and the corresponding characters are the <A HREF="26_1_Glossary.html#same"
|
||
|
><EM CLASS="term"
|
||
|
>same</EM
|
||
|
></A
|
||
|
> under <A HREF="f_char_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>char=</B
|
||
|
></A
|
||
|
> or <A HREF="f_char_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>char-equal</B
|
||
|
></A
|
||
|
>, as appropriate. </P
|
||
|
><P CLASS="j"
|
||
|
>A string <I CLASS="i"
|
||
|
><I
|
||
|
>a</I
|
||
|
></I
|
||
|
> is less than a string <I CLASS="i"
|
||
|
><I
|
||
|
>b</I
|
||
|
></I
|
||
|
> if in the first position in which they differ the character of <I CLASS="i"
|
||
|
><I
|
||
|
>a</I
|
||
|
></I
|
||
|
> is less than the corresponding character of <I CLASS="i"
|
||
|
><I
|
||
|
>b</I
|
||
|
></I
|
||
|
> according to <A HREF="f_char_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>char</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
><</SPAN
|
||
|
></A
|
||
|
> or <A HREF="f_char_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>char-lessp</B
|
||
|
></A
|
||
|
> as appropriate, or if string <I CLASS="i"
|
||
|
><I
|
||
|
>a</I
|
||
|
></I
|
||
|
> is a proper prefix of string <I CLASS="i"
|
||
|
><I
|
||
|
>b</I
|
||
|
></I
|
||
|
> (of shorter length and matching in all the characters of <I CLASS="i"
|
||
|
><I
|
||
|
>a</I
|
||
|
></I
|
||
|
>). </P
|
||
|
><P CLASS="j"
|
||
|
>The equality functions return a <VAR CLASS="param"
|
||
|
>generalized boolean</VAR
|
||
|
> that is <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
> if the strings are equal, or <A HREF="26_1_Glossary.html#false"
|
||
|
><EM CLASS="term"
|
||
|
>false</EM
|
||
|
></A
|
||
|
> otherwise. </P
|
||
|
><P CLASS="j"
|
||
|
>The inequality functions return a <VAR CLASS="param"
|
||
|
>mismatch-index</VAR
|
||
|
> that is <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
> if the strings are not equal, or <A HREF="26_1_Glossary.html#false"
|
||
|
><EM CLASS="term"
|
||
|
>false</EM
|
||
|
></A
|
||
|
> otherwise. When the <VAR CLASS="param"
|
||
|
>mismatch-index</VAR
|
||
|
> is <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
>, it is an <A HREF="26_1_Glossary.html#integer"
|
||
|
><EM CLASS="term"
|
||
|
>integer</EM
|
||
|
></A
|
||
|
> representing the first character position at which the two substrings differ, as an offset from the beginning of <VAR CLASS="param"
|
||
|
>string1</VAR
|
||
|
>. </P
|
||
|
><P CLASS="j"
|
||
|
>The comparison has one of the following results:</P
|
||
|
><DL
|
||
|
><DT
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string=</B
|
||
|
></A
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string=</B
|
||
|
></A
|
||
|
> is <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
> if the supplied substrings are of the same length and contain the <A HREF="26_1_Glossary.html#same"
|
||
|
><EM CLASS="term"
|
||
|
>same</EM
|
||
|
></A
|
||
|
> characters in corresponding positions; otherwise it is <A HREF="26_1_Glossary.html#false"
|
||
|
><EM CLASS="term"
|
||
|
>false</EM
|
||
|
></A
|
||
|
>.</P
|
||
|
></DD
|
||
|
><DT
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string/=</B
|
||
|
></A
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string/=</B
|
||
|
></A
|
||
|
> is <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
> if the supplied substrings are different; otherwise it is <A HREF="26_1_Glossary.html#false"
|
||
|
><EM CLASS="term"
|
||
|
>false</EM
|
||
|
></A
|
||
|
>.</P
|
||
|
></DD
|
||
|
><DT
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string-equal</B
|
||
|
></A
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string-equal</B
|
||
|
></A
|
||
|
> is just like <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string=</B
|
||
|
></A
|
||
|
> except that differences in case are ignored; two characters are considered to be the same if <A HREF="f_char_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>char-equal</B
|
||
|
></A
|
||
|
> is <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
> of them.</P
|
||
|
></DD
|
||
|
><DT
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
><</SPAN
|
||
|
></A
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
><</SPAN
|
||
|
></A
|
||
|
> is <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
> if substring1 is less than substring2; otherwise it is <A HREF="26_1_Glossary.html#false"
|
||
|
><EM CLASS="term"
|
||
|
>false</EM
|
||
|
></A
|
||
|
>.</P
|
||
|
></DD
|
||
|
><DT
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
>></SPAN
|
||
|
></A
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
>></SPAN
|
||
|
></A
|
||
|
> is <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
> if substring1 is greater than substring2; otherwise it is <A HREF="26_1_Glossary.html#false"
|
||
|
><EM CLASS="term"
|
||
|
>false</EM
|
||
|
></A
|
||
|
>.</P
|
||
|
></DD
|
||
|
><DT
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string-lessp</B
|
||
|
></A
|
||
|
><SPAN CLASS="cmr"
|
||
|
>,</SPAN
|
||
|
> <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string-greaterp</B
|
||
|
></A
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string-lessp</B
|
||
|
></A
|
||
|
> and <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string-greaterp</B
|
||
|
></A
|
||
|
> are exactly like <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
><</SPAN
|
||
|
></A
|
||
|
> and <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
>></SPAN
|
||
|
></A
|
||
|
>, respectively, except that distinctions between uppercase and lowercase letters are ignored. It is as if <A HREF="f_char_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>char-lessp</B
|
||
|
></A
|
||
|
> were used instead of <A HREF="f_char_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>char</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
><</SPAN
|
||
|
></A
|
||
|
> for comparing characters.</P
|
||
|
></DD
|
||
|
><DT
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
><</SPAN
|
||
|
><B
|
||
|
>=</B
|
||
|
></A
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
><</SPAN
|
||
|
><B
|
||
|
>=</B
|
||
|
></A
|
||
|
> is <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
> if substring1 is less than or equal to substring2; otherwise it is <A HREF="26_1_Glossary.html#false"
|
||
|
><EM CLASS="term"
|
||
|
>false</EM
|
||
|
></A
|
||
|
>.</P
|
||
|
></DD
|
||
|
><DT
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
>></SPAN
|
||
|
><B
|
||
|
>=</B
|
||
|
></A
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
>></SPAN
|
||
|
><B
|
||
|
>=</B
|
||
|
></A
|
||
|
> is <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
> if substring1 is greater than or equal to substring2; otherwise it is <A HREF="26_1_Glossary.html#false"
|
||
|
><EM CLASS="term"
|
||
|
>false</EM
|
||
|
></A
|
||
|
>.</P
|
||
|
></DD
|
||
|
><DT
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string-not-greaterp</B
|
||
|
></A
|
||
|
><SPAN CLASS="cmr"
|
||
|
>,</SPAN
|
||
|
> <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string-not-lessp</B
|
||
|
></A
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string-not-greaterp</B
|
||
|
></A
|
||
|
> and <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string-not-lessp</B
|
||
|
></A
|
||
|
> are exactly like <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
><</SPAN
|
||
|
><B
|
||
|
>=</B
|
||
|
></A
|
||
|
> and <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
>></SPAN
|
||
|
><B
|
||
|
>=</B
|
||
|
></A
|
||
|
>, respectively, except that distinctions between uppercase and lowercase letters are ignored. It is as if <A HREF="f_char_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>char-lessp</B
|
||
|
></A
|
||
|
> were used instead of <A HREF="f_char_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>char</B
|
||
|
><SPAN CLASS="cmtt"
|
||
|
><</SPAN
|
||
|
></A
|
||
|
> for comparing characters.</P
|
||
|
></DD
|
||
|
></DL
|
||
|
></DD
|
||
|
><DT
|
||
|
><B
|
||
|
>Examples</B
|
||
|
></DT
|
||
|
><DD
|
||
|
><PRE CLASS="screen"
|
||
|
>(string= "foo" "foo") <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
>
|
||
|
(string= "foo" "Foo") <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> <A HREF="26_1_Glossary.html#false"
|
||
|
><EM CLASS="term"
|
||
|
>false</EM
|
||
|
></A
|
||
|
>
|
||
|
(string= "foo" "bar") <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> <A HREF="26_1_Glossary.html#false"
|
||
|
><EM CLASS="term"
|
||
|
>false</EM
|
||
|
></A
|
||
|
>
|
||
|
(string= "together" "frog" :start1 1 :end1 3 :start2 2) <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
>
|
||
|
(string-equal "foo" "Foo") <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
>
|
||
|
(string= "abcd" "01234abcd9012" :start2 5 :end2 9) <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> <A HREF="26_1_Glossary.html#true"
|
||
|
><EM CLASS="term"
|
||
|
>true</EM
|
||
|
></A
|
||
|
>
|
||
|
(string< "aaaa" "aaab") <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> 3
|
||
|
(string>= "aaaaa" "aaaa") <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> 4
|
||
|
(string-not-greaterp "Abcde" "abcdE") <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> 5
|
||
|
(string-lessp "012AAAA789" "01aaab6" :start1 3 :end1 7
|
||
|
:start2 2 :end2 6) <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> 6
|
||
|
(string-not-equal "AAAA" "aaaA") <SPAN CLASS="cmsy"
|
||
|
><SPAN CLASS="arrow"
|
||
|
>→</SPAN
|
||
|
></SPAN
|
||
|
> <A HREF="26_1_Glossary.html#false"
|
||
|
><EM CLASS="term"
|
||
|
>false</EM
|
||
|
></A
|
||
|
></PRE
|
||
|
></DD
|
||
|
><DT
|
||
|
><B
|
||
|
>See Also</B
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><A HREF="f_char_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>char=</B
|
||
|
></A
|
||
|
></P
|
||
|
></DD
|
||
|
><DT
|
||
|
><B
|
||
|
>Notes</B
|
||
|
></DT
|
||
|
><DD
|
||
|
><P CLASS="j"
|
||
|
><A HREF="f_equal.html" CLASS="funref"
|
||
|
><B
|
||
|
>equal</B
|
||
|
></A
|
||
|
> calls <A HREF="f_string_eq.html" CLASS="funref"
|
||
|
><B
|
||
|
>string=</B
|
||
|
></A
|
||
|
> if applied to two <A HREF="26_1_Glossary.html#string"
|
||
|
><EM CLASS="term"
|
||
|
>strings</EM
|
||
|
></A
|
||
|
>.</P
|
||
|
></DD
|
||
|
></DL
|
||
|
></DIV
|
||
|
></DIV
|
||
|
><DIV CLASS="footer"
|
||
|
><DIV CLASS="btmnav"
|
||
|
><A HREF="f_string-trim.html" CLASS="prev"
|
||
|
>←</A
|
||
|
><A HREF="f_stringp.html" CLASS="next"
|
||
|
>→</A
|
||
|
></DIV
|
||
|
><DIV CLASS="trail"
|
||
|
>Conversion to HTML copyright 2023 by Gilbert Baumann</DIV
|
||
|
></DIV
|
||
|
></DIV
|
||
|
><SCRIPT
|
||
|
>domReady();</SCRIPT
|
||
|
></BODY
|
||
|
></HTML
|
||
|
>
|