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Chapter 3: ColdFusion Functions
<p>The first call to REFindNoCase to search this string is:
<b>REFindNoCase("[[:alpha:]]+",testString,1,"True")</b></p>
<p>This function returns a structure that contains two arrays: pos and len.</p>
<p>To create this structure you can use a CFSET statement,
for example:</p>
<CFSET st = REFindNoCase("[[:alpha:]]+",testString,1,"True")>
<cfset st = REFindNoCase("[[:alpha:]]+",testString,1,"True")>
<p>
<cfoutput>
The number of elements in each array: #ArrayLen(st.pos)#.
</cfoutput></p>
<p><b>The number of elements in the pos and len arrays will always be one,
if you do not use parentheses to denote subexpressions in the regular
expression.</b></p>
<p>The value of st.pos[1] is: <cfoutput>#st.pos[1]#.</cfoutput></p>
<p>The value of st.len[1] is: <cfoutput>#st.len[1]#.</cfoutput></p>
<p>
<cfoutput>
Substring is <b>[#Mid(testString,st.pos[1],st.len[1])#]</B>
</cfoutput></p>
<hr size = "2" color = "#0000A0">
<p>However, if you use parentheses to denote subexpressions in the regular
expression, the first element contains the position and length of
the first instance of the whole expression. The position and length
of the first instance of each subexpression within will be included
in additional array elements.</p>
<p>For example:
<CFSET st1 = REFindNoCase("([[:alpha:]]+)[
]+(\1)",testString,1,"True")></p>
<cfset st1 = REFindNoCase("([[:alpha:]]+)[ ]+(\1)",testString,1,"True")>
<p>The number of elements in each array is
<cfoutput>
#ArrayLen(st1.pos)#
</cfoutput>.</p>
<p>First whole expression match; position is
<cfoutput>
#st1.pos[1]#; length is #st1.len[1]#;
whole expression match is <B>[#Mid(testString,st1.pos[1],st1.len[1])#]</B>
</cfoutput></p>
<p>Subsequent elements of the arrays provide the position and length of the
first instance of each parenthesized subexpression therein.</p>
<cfloop index = "i" from = "2" to = "#ArrayLen(st1.pos)#">
<p><cfoutput>Position is #st1.pos[i]#; Length is #st1.len[i]#;
Substring is <B>[#Mid(testString,st1.pos[i],st1.len[i])#]</B>
</cfoutput></p>
</cfloop><br>
Содержание COLFUSION MX 7-CFML
Страница 1: ...COLDFUSION MX7 CFML Reference...
Страница 20: ...20 Chapter 1 Reserved Words and Variables...
Страница 50: ...50 Chapter 2 ColdFusion Tags cfelse br Searching cfif cfloop cfif...
Страница 101: ...cfdefaultcase 101 cfdefaultcase cfswitch cfoutput Your grade is grade cfoutput...
Страница 115: ...cfdocumentsection 115 cfdocumentsection cfoutput cfdocument...
Страница 311: ...cfNTauthenticate 311 Please Try again H2 cfif cfoutput cfinclude template loginform cfm cfabort cfif cfif cflogin...
Страница 411: ...cftable 411 cftable body html...
Страница 515: ...Chr 515 maxlength 5 p input type Submit name input type RESET cfform...
Страница 605: ...GetEncoding 605 WriteOutput The encoding is theEncoding cfscript cfif...
Страница 629: ...GetProfileString 629 tr td input type Submit name Submit value Submit td td td tr table form...
Страница 655: ...IIf 655 cfoutput IIf Hour Now GTE 12 DE It is afternoon or evening DE It is morning cfoutput b...
Страница 664: ...664 Chapter 3 ColdFusion Functions cfelse h3 Conversion error h3 cfif...
Страница 687: ...IsStruct 687 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 693: ...IsWDDX 693 struct data wddxPacket hr xmp cfoutput packet xmp IsWDDX returns IsWDDX packet br cfoutput...
Страница 751: ...LSDateFormat 751 hr noshade cfoutput cfloop...
Страница 861: ...StructFind 861 cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 869: ...StructIsEmpty 869 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 903: ...Val 903 value Is the beginning numeric name form...
Страница 932: ...932 Chapter 3 ColdFusion Functions...
Страница 944: ...944 Chapter 4 ColdFusion MX Flash Form Style Reference...
Страница 962: ...962 Chapter 5 Application CFC Reference...
Страница 1008: ...1008 Chapter 6 ColdFusion MX Event Gateway Reference cfset retValue Reason reason cfreturn retValue cffunction...
Страница 1054: ...1054 Chapter 6 ColdFusion MX Event Gateway Reference...