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1 <?xml version="1.0"?> |
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2 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:exslt="http://exslt.org/common" exclude-result-prefixes="exslt"> |
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3 <xsl:output method="xml" indent="yes"/> |
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4 |
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5 |
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6 <!-- filters can only return hide or show --> |
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7 |
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8 <!-- filter-only = item's @filter can only have items from the list |
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9 anything with no filters passes |
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10 --> |
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11 <xsl:template match="filter-only" mode="filter"><xsl:param name="item"/> |
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12 <xsl:if test="$item[@filter]"> |
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13 <xsl:variable name="this" select="."/> |
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14 <xsl:variable name="my-filters"> |
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15 <xsl:call-template name="filter-list"> |
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16 <xsl:with-param name="f" select="$item/parent::component/@filter"/> |
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17 </xsl:call-template> |
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18 <xsl:call-template name="filter-list"> |
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19 <xsl:with-param name="f" select="$item/@filter"/> |
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20 </xsl:call-template> |
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21 </xsl:variable> |
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22 <xsl:variable name="match"> |
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23 <xsl:for-each select="exslt:node-set($my-filters)/*"> |
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24 <xsl:if test="not($this/*[name()=name(current()) and @v=current()/@v])">x</xsl:if> |
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25 </xsl:for-each> |
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26 </xsl:variable> |
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27 <xsl:if test="$match!=''">hide</xsl:if> |
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28 </xsl:if> |
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29 </xsl:template> |
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30 |
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31 |
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32 |
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33 <!-- filter-has = item's @filter must have all filters in the list. ie it can have any other filters, but these must all be present |
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34 --> |
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35 <xsl:template match="filter-has" mode="filter"><xsl:param name="item"/> |
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36 <xsl:if test="$item[(self::component or self::unit) and not(unit/@filter or self::unit[not(../unit[@filter])])]"> |
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37 <xsl:variable name="my-filters"> |
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38 <xsl:call-template name="filter-list"> |
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39 <xsl:with-param name="f" select="$item/parent::component/@filter"/> |
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40 </xsl:call-template> |
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41 <xsl:call-template name="filter-list"> |
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42 <xsl:with-param name="f" select="$item/@filter"/> |
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43 </xsl:call-template> |
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44 </xsl:variable> |
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45 <xsl:variable name="match"> |
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46 <xsl:for-each select="*"> |
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47 <!-- if(f in this) {return true} else if(!f in this) {return false} else {return !(f is positive)} --> |
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48 <xsl:choose> |
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49 <xsl:when test="exslt:node-set($my-filters)/*[name()=name(current()) and @v=current()/@v]"/> <!-- filter in item --> |
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50 <xsl:when test="exslt:node-set($my-filters)/*[name()!=name(current()) and @v=current()/@v]">x</xsl:when> <!-- !filter in item --> |
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51 <xsl:when test="self::filter">x</xsl:when> <!-- !(filter is positive) --> |
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52 </xsl:choose> |
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53 </xsl:for-each> |
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54 </xsl:variable> |
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55 <xsl:if test="$match!=''">hide</xsl:if> |
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56 </xsl:if> |
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57 </xsl:template> |
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58 |
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59 <xsl:template match="filter-with" mode="filter"><xsl:param name="item"/> |
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60 <xsl:if test="$item[(self::component or self::unit) and not(unit/@filter or self::unit[not(../unit[@filter])])]"> |
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61 <xsl:variable name="my-filters"> |
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62 <xsl:call-template name="filter-list"> |
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63 <xsl:with-param name="f" select="$item/parent::component/@filter"/> |
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64 </xsl:call-template> |
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65 <xsl:call-template name="filter-list"> |
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66 <xsl:with-param name="f" select="$item/@filter"/> |
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67 </xsl:call-template> |
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68 </xsl:variable> |
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69 <xsl:variable name="match"> |
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70 <xsl:for-each select="*"> |
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71 <xsl:if test="exslt:node-set($my-filters)/*[name()!=name(current()) and @v=current()/@v]">x</xsl:if> <!-- !filter in item --> |
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72 </xsl:for-each> |
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73 </xsl:variable> |
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74 <xsl:if test="$match!=''">hide</xsl:if> |
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75 </xsl:if> |
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76 </xsl:template> |
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77 |
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78 |
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79 |
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80 <xsl:template name="filter-item"> <xsl:param name="f"/> |
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81 <!-- create an element for a given filter. If the filter's empty make nothing --> |
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82 <xsl:choose> |
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83 <xsl:when test="$f=''"/> |
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84 <xsl:when test="starts-with($f,'!')"> |
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85 <not v="{substring($f,2)}"/> |
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86 </xsl:when> |
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87 <xsl:otherwise> |
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88 <filter v="{$f}"/> |
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89 </xsl:otherwise> |
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90 </xsl:choose> |
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91 </xsl:template> |
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92 |
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93 <xsl:template name="filter-list"><xsl:param name="f"/> |
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94 <!-- turn a filter list into a set of elements (<filter> or <not>) with the attribute "v" containing the "absolute value" of the filter |
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95 filter="A,B,!C" becomes <filter v="A"/><filter v="B"/><not v="C"/> |
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96 --> |
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97 <xsl:choose> |
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98 <xsl:when test="contains($f,',')"> |
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99 <xsl:call-template name="filter-item"><xsl:with-param name="f" select="normalize-space(substring-before($f,','))"/></xsl:call-template> |
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100 <xsl:call-template name="filter-list"> |
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101 <xsl:with-param name="f" select="substring-after($f,',')"/> |
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102 </xsl:call-template> |
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103 </xsl:when> |
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104 <xsl:otherwise> |
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105 <xsl:call-template name="filter-item"><xsl:with-param name="f" select="normalize-space($f)"/></xsl:call-template> |
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106 </xsl:otherwise> |
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107 </xsl:choose> |
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108 </xsl:template> |
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109 |
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110 </xsl:stylesheet> |