我有一个如下所示的XML，我正在使用XSL - FO - XSLT转换生成PDF。如何在XML元素之间添加空格，同时将它们显示为PDF中的表列?
<Reports>
<Report>
<BatchDate>2016-08-10T00:00:00</BatchDate>
<ClientAccountNo>ABCDE01384</ClientAccountNo>
<Source>N</Source>
<CDSNo>0000001387</CDSNo>
<Price>0.123000</Price>
<Qty>-1200</Qty>
<TCurrency>USD</TCurrency>
<TNettAmt>0</TNettAmt>
<LCurrency>USD</LCurrency>
<LNettAmt>-86.600000</LNettAmt>
<PromotionInd>N</PromotionInd>
<BrkChgID>BRK-N</BrkChgID>
<BrkChgAmt>50.000000</BrkChgAmt>
<ClrChgID>CLR</ClrChgID>
<ClrChgAmt>10.000000</ClrChgAmt>
<SdcChgID>SDC</SdcChgID>
<SdcChgAmt>1.000000</SdcChgAmt>
<BinChgID />
<BinChgAmt>0</BinChgAmt>
<OthChgAmt>0.000000</OthChgAmt>
<TaxAmt>0.000000</TaxAmt>
</Report>
</Reports>
在输出上述XML时，我需要在XML元素之间添加一个空格，例如，让我们以TaxAmt为例，我需要将其输出为TaxAmt。我该怎么做呢?下面是我的XSLT
<fo:table role="html:table" table-layout="auto" inline-progression-dimension="auto" line-height="2.5" width="100%" border="0px" border-collapse="collapse" border-spacing="3px" border-style="outset hidden" space-before.conditionality="retain" space-after.conditionality="retain" space-after="1em" space-before="1em">
<!--table header-->
<xsl:for-each select="//Reports/Report[1]/*">
<fo:table-column column-width="proportional-column-width(4.77)" font-family="sans-serif" font-size="medium" />
</xsl:for-each>
<fo:table-header>
<fo:table-row height="auto" color="#FFFFFF" background-color="#A1A1A1" text-align="center" font-weight="bold" font-family="sans-serif" font-size="medium">
<xsl:for-each select="/Reports/Report[1]/*">
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">
<xsl:value-of select="name()"/>
</fo:block>
</fo:table-cell>
</xsl:for-each>
</fo:table-row>
</fo:table-header>
<!--table body-->
<fo:table-body>
<xsl:for-each select="/Reports/Report">
<fo:table-row display-align="before">
<xsl:for-each select="*">
<fo:table-cell text-align="center" border-top-color="rgb(255, 255, 255)" border-top-style="solid" border-width="1pt" padding="2pt">
<fo:block font-size="medium" font-family="sans-serif">
<xsl:text> </xsl:text> <xsl:value-of select="."/>
</fo:block>
</fo:table-cell>
</xsl:for-each>
</fo:table-row>
</xsl:for-each>
</fo:table-body>
</fo:table>
下面的模板调用在大写字符前插入空格。第一次出现空格将被XSL格式化引擎忽略。
<!--xsl:value-of select="name()"/-->
<xsl:call-template name="insertSpaceBeforeUCase">
<xsl:with-param name="prmStr" select="name()"/>
</xsl:call-template>
...
<xsl:template name="insertSpaceBeforeUCase">
<xsl:param name="prmStr" select="''"/>
<xsl:variable name="firstChar" select="substring($prmStr,1,1)"/>
<xsl:if test="translate($firstChar,'ABCDEFGHIJKLMNOPQRSTUVWXYZ','')=''">
<xsl:text> </xsl:text>
</xsl:if>
<xsl:value-of select="$firstChar"/>
<xsl:if test="string-length($prmStr) > 1">
<xsl:call-template name="insertSpaceBeforeUCase">
<xsl:with-param name="prmStr" select="substring($prmStr,2)"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
通过此模板调用"TaxAmt"转换为"TaxAmt"。但是"ClrChgID"被转换成"Sdc chgi D"。后者可能不是你想要的。
XSLT 1.0对字符串处理有限制。如果可以将样式表迁移到XSLT 2.0，那么这个问题还有另一种解决方案。
(附录)比特精炼版在这里:
<xsl:template name="insertSpaceBeforeUCase">
<xsl:param name="prmStr" select="''"/>
<xsl:param name="prmPrevChar" select="''"/>
<xsl:variable name="firstChar" select="substring($prmStr,1,1)"/>
<xsl:variable name="nextChar" select="substring($prmStr,2,1)"/>
<xsl:if test="(translate($firstChar,'ABCDEFGHIJKLMNOPQRSTUVWXYZ','') = '')
and ($prmPrevChar != '')
and ((translate($prmPrevChar,'abcdefghijklmnopqrstuvwxyz','') = '') or ($nextChar != '') and (translate($nextChar,'abcdefghijklmnopqrstuvwxyz','') = ''))">
<xsl:text> </xsl:text>
</xsl:if>
<xsl:value-of select="$firstChar"/>
<xsl:if test="string-length($prmStr) > 1">
<xsl:call-template name="insertSpaceBeforeUCase">
<xsl:with-param name="prmStr" select="substring($prmStr,2)"/>
<xsl:with-param name="prmPrevChar" select="$firstChar"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
该模板生成如下XSL-FO:
<fo:table-row height="auto" color="#FFFFFF" background-color="#A1A1A1" text-align="center" font-weight="bold" font-family="sans-serif" font-size="medium">
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Batch Date</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Client Account No</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Source</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">CDS No</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Price</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Qty</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">T Currency</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">T Nett Amt</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">L Currency</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">L Nett Amt</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Promotion Ind</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Brk Chg ID</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Brk Chg Amt</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Clr Chg ID</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Clr Chg Amt</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Sdc Chg ID</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Sdc Chg Amt</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Bin Chg ID</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Bin Chg Amt</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Oth Chg Amt</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center">
<fo:block font-size="medium" font-family="sans-serif">Tax Amt</fo:block>
</fo:table-cell>
</fo:table-row>