Alessandro Bonazzi
8c43d5cf2f
Files correlati : cg0.exe cg0700a.msk cg0700b.msk cg3.exe cg4.exe Bug : Commento: Merge 1.0 libraries
182 lines
11 KiB
XML
182 lines
11 KiB
XML
<?xml version="1.0"?>
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<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format" font-family="Times Roman" font-size="10pt" text-align="justify">
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<fo:layout-master-set>
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<fo:simple-page-master master-name="blank" page-width="8.5in" page-height="11in" margin-top="1in" margin-bottom="1in" margin-left="10pc" margin-right="1in">
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<fo:region-body margin-bottom="24pt" margin-top="24pt"/>
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<fo:region-before region-name="xsl-region-before-blank" extent="12pt"/>
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<fo:region-after region-name="xsl-region-after-blank" extent="12pt"/>
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</fo:simple-page-master>
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<fo:simple-page-master master-name="simple1" page-width="8.5in" page-height="11in" margin-top="1in" margin-bottom="1in" margin-left="10pc" margin-right="1in">
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<fo:region-body margin-bottom="24pt" margin-top="24pt"/>
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<fo:region-before extent="12pt"/>
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<fo:region-after extent="12pt"/>
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</fo:simple-page-master>
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<fo:simple-page-master master-name="left1" page-width="8.5in" page-height="11in" margin-top="1in" margin-bottom="1in" margin-left="10pc" margin-right="1in">
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<fo:region-body margin-bottom="24pt" margin-top="24pt"/>
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<fo:region-before region-name="xsl-region-before-left" extent="12pt"/>
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<fo:region-after region-name="xsl-region-after-left" extent="12pt"/>
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</fo:simple-page-master>
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<fo:simple-page-master master-name="right1" page-width="8.5in" page-height="11in" margin-top="1in" margin-bottom="1in" margin-left="1in" margin-right="10pc">
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<fo:region-body margin-bottom="24pt" margin-top="24pt"/>
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<fo:region-before region-name="xsl-region-before-right" extent="12pt"/>
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<fo:region-after region-name="xsl-region-after-right" extent="12pt"/>
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</fo:simple-page-master>
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<fo:simple-page-master master-name="first1" page-width="8.5in" page-height="11in" margin-top="1in" margin-bottom="1in" margin-left="1in" margin-right="1in">
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<fo:region-body margin-bottom="24pt" margin-top="24pt"/>
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<fo:region-before region-name="xsl-region-before-first" extent="12pt"/>
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<fo:region-after region-name="xsl-region-after-first" extent="12pt"/>
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</fo:simple-page-master>
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<fo:simple-page-master master-name="simple2" page-width="8.5in" page-height="11in" margin-top="1in" margin-bottom="1in" margin-left="10pc" margin-right="1in">
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<fo:region-body column-count="1" margin-bottom="24pt" margin-top="24pt"/>
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<fo:region-before extent="12pt"/>
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<fo:region-after extent="12pt"/>
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</fo:simple-page-master>
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<fo:simple-page-master master-name="left2" page-width="8.5in" page-height="11in" margin-top="1in" margin-bottom="1in" margin-left="10pc" margin-right="1in">
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<fo:region-body column-count="1" margin-bottom="24pt" margin-top="24pt"/>
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<fo:region-before region-name="xsl-region-before-left" extent="12pt"/>
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<fo:region-after region-name="xsl-region-after-left" extent="12pt"/>
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</fo:simple-page-master>
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<fo:simple-page-master master-name="right2" page-width="8.5in" page-height="11in" margin-top="1in" margin-bottom="1in" margin-left="1in" margin-right="10pc">
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<fo:region-body column-count="1" margin-bottom="24pt" margin-top="24pt"/>
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<fo:region-before region-name="xsl-region-before-right" extent="12pt"/>
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<fo:region-after region-name="xsl-region-after-right" extent="12pt"/>
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</fo:simple-page-master>
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<fo:simple-page-master master-name="first2" page-width="8.5in" page-height="11in" margin-top="1in" margin-bottom="1in" margin-left="1in" margin-right="1in">
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<fo:region-body column-count="1" margin-bottom="24pt" margin-top="24pt"/>
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<fo:region-before region-name="xsl-region-before-first" extent="12pt"/>
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<fo:region-after region-name="xsl-region-after-first" extent="12pt"/>
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</fo:simple-page-master>
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<fo:page-sequence-master master-name="titlepage1">
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<fo:repeatable-page-master-alternatives>
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<fo:conditional-page-master-reference master-name="first1"/>
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</fo:repeatable-page-master-alternatives>
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</fo:page-sequence-master>
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<fo:page-sequence-master master-name="oneside1">
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<fo:repeatable-page-master-alternatives>
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<fo:conditional-page-master-reference master-name="simple1"/>
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</fo:repeatable-page-master-alternatives>
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</fo:page-sequence-master>
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<fo:page-sequence-master master-name="twoside1">
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<fo:repeatable-page-master-alternatives>
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<fo:conditional-page-master-reference master-name="blank" blank-or-not-blank="blank"/>
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<fo:conditional-page-master-reference master-name="right1" odd-or-even="odd"/>
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<fo:conditional-page-master-reference master-name="left1" odd-or-even="even"/>
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</fo:repeatable-page-master-alternatives>
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</fo:page-sequence-master>
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<fo:page-sequence-master master-name="titlepage2">
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<fo:repeatable-page-master-alternatives>
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<fo:conditional-page-master-reference master-name="first2"/>
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</fo:repeatable-page-master-alternatives>
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</fo:page-sequence-master>
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<fo:page-sequence-master master-name="oneside2">
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<fo:repeatable-page-master-alternatives>
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<fo:conditional-page-master-reference master-name="simple2"/>
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</fo:repeatable-page-master-alternatives>
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</fo:page-sequence-master>
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<fo:page-sequence-master master-name="twoside2">
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<fo:repeatable-page-master-alternatives>
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<fo:conditional-page-master-reference master-name="blank" blank-or-not-blank="blank"/>
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<fo:conditional-page-master-reference master-name="right2" odd-or-even="odd"/>
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<fo:conditional-page-master-reference master-name="left2" odd-or-even="even"/>
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</fo:repeatable-page-master-alternatives>
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</fo:page-sequence-master>
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</fo:layout-master-set>
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<fo:page-sequence id="" hyphenate="true" master-name="oneside1" language="en">
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<fo:static-content flow-name="xsl-region-after">
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<fo:block text-align="center" font-size="10pt">
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<fo:page-number/>
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</fo:block>
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</fo:static-content>
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<fo:flow flow-name="xsl-region-body">
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<fo:block>
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<fo:block margin-left="-4pc" font-family="Helvetica">
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<fo:block keep-with-next.within-column="always">
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<fo:block font-size="16pt" font-weight="bold" font-family="Helvetica" space-before.minimum="1em" space-before.optimum="1.5em" space-before.maximum="2em">Loops</fo:block>
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</fo:block>
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</fo:block>
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</fo:block>
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<fo:block space-before.optimum="1em" space-before.minimum="0.8em" space-before.maximum="1.2em">
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<fo:wrapper id="id2781313"><!--for loop, DSSSL and--></fo:wrapper>
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<fo:wrapper id="id2781330"><!--loops, implementing (DSSSL)--></fo:wrapper>
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<fo:wrapper id="id2781348"><!--tail recursion (DSSSL)--></fo:wrapper>
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DSSSL doesn't have any construct that resembles the
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for loop that occurs in most imperative languages like C
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and Java. Instead, DSSSL employs a common trick in
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functional languages for implementing a loop: tail recursion.
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</fo:block>
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<fo:block space-before.optimum="1em" space-before.minimum="0.8em" space-before.maximum="1.2em">
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Loops in DSSSL use a special form of
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<fo:inline font-family="Courier">let</fo:inline>. This loop counts from 1 to 10:
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<fo:block wrap-option="no-wrap" text-align="start" white-space-collapse="false" linefeed-treatment="preserve" font-family="Courier" font-size="9pt" space-before.minimum="0.8em" space-before.optimum="1em" space-before.maximum="1.2em">
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(let <fo:inline id="dl1">❶</fo:inline>loopvar <fo:inline id="dl2">❷</fo:inline>((count 1))
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<fo:inline id="dl3">❸</fo:inline>(if (> count 10)
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<fo:inline id="dl4">❹</fo:inline>#t
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(<fo:inline id="dl5">❺</fo:inline>loopvar <fo:inline id="dl6">❻</fo:inline>(+ count 1))))</fo:block></fo:block>
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<fo:block id="id2785036">
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<fo:list-block space-before.optimum="1em" space-before.minimum="0.8em" space-before.maximum="1.2em" provisional-distance-between-starts="2.2em" provisional-label-separation="0.2em">
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<fo:list-item id="id2785045">
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<fo:list-item-label end-indent="label-end()">
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<fo:block>❶</fo:block>
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</fo:list-item-label>
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<fo:list-item-body start-indent="body-start()">
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<fo:block>This variable controls the loop. It is declared without an
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initial value, immediately after the <fo:inline font-family="Courier">let</fo:inline>
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operand.</fo:block>
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</fo:list-item-body>
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</fo:list-item>
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<fo:list-item id="id2785112">
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<fo:list-item-label end-indent="label-end()">
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<fo:block>❷</fo:block>
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</fo:list-item-label>
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<fo:list-item-body start-indent="body-start()">
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<fo:block>
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<fo:wrapper id="id2785136"><!--variables (DSSSL), local, defining after loop variable--></fo:wrapper>
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Any number of additional local variables can be defined after
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the loop variable, just as they can in any other
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<fo:inline font-family="Courier">let</fo:inline> expression.</fo:block>
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</fo:list-item-body>
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</fo:list-item>
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<fo:list-item id="id2785185">
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<fo:list-item-label end-indent="label-end()">
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<fo:block>❸</fo:block>
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</fo:list-item-label>
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<fo:list-item-body start-indent="body-start()">
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<fo:block>If you ever want the loop to end, you have to put some sort of a
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test in it.</fo:block>
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</fo:list-item-body>
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</fo:list-item>
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<fo:list-item id="id2785017">
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<fo:list-item-label end-indent="label-end()">
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<fo:block>❹</fo:block>
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</fo:list-item-label>
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<fo:list-item-body start-indent="body-start()">
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<fo:block>This is the value that will be returned.</fo:block>
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</fo:list-item-body>
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</fo:list-item>
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<fo:list-item id="id2781490">
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<fo:list-item-label end-indent="label-end()">
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<fo:block>❺</fo:block>
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</fo:list-item-label>
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<fo:list-item-body start-indent="body-start()">
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<fo:block>Note that you iterate the loop by using the loop variable as if
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it was a function name.</fo:block>
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</fo:list-item-body>
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</fo:list-item>
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<fo:list-item id="id2781524">
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<fo:list-item-label end-indent="label-end()">
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<fo:block>❻</fo:block>
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</fo:list-item-label>
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<fo:list-item-body start-indent="body-start()">
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<fo:block>The arguments to this function are the values that
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you want the local variables declared in <fo:basic-link internal-destination="dl2">❷</fo:basic-link> to have
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in the next iteration.</fo:block>
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</fo:list-item-body>
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</fo:list-item>
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</fo:list-block>
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</fo:block>
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</fo:flow>
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</fo:page-sequence>
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</fo:root>
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