| 1 | #define IN_LIBEXSLT
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| 2 | #include "libexslt/libexslt.h"
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| 3 |
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| 4 | #if defined(WIN32) && !defined (__CYGWIN__) && (!__MINGW32__)
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| 5 | #include <win32config.h>
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| 6 | #elif defined(VBOX)
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| 7 | #include "vboxconfig.h"
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| 8 | #else
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| 9 | #include "config.h"
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| 10 | #endif
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| 11 |
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| 12 | #include <libxml/tree.h>
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| 13 | #include <libxml/xpath.h>
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| 14 | #include <libxml/xpathInternals.h>
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| 15 | #include <libxml/parser.h>
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| 16 | #include <libxml/encoding.h>
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| 17 | #include <libxml/uri.h>
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| 18 |
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| 19 | #include <libxslt/xsltconfig.h>
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| 20 | #include <libxslt/xsltutils.h>
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| 21 | #include <libxslt/xsltInternals.h>
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| 22 | #include <libxslt/extensions.h>
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| 23 |
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| 24 | #include "exslt.h"
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| 25 |
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| 26 | /**
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| 27 | * exsltStrTokenizeFunction:
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| 28 | * @ctxt: an XPath parser context
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| 29 | * @nargs: the number of arguments
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| 30 | *
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| 31 | * Splits up a string on the characters of the delimiter string and returns a
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| 32 | * node set of token elements, each containing one token from the string.
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| 33 | */
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| 34 | static void
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| 35 | exsltStrTokenizeFunction(xmlXPathParserContextPtr ctxt, int nargs)
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| 36 | {
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| 37 | xsltTransformContextPtr tctxt;
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| 38 | xmlChar *str, *delimiters, *cur;
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| 39 | const xmlChar *token, *delimiter;
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| 40 | xmlNodePtr node;
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| 41 | xmlDocPtr container;
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| 42 | xmlXPathObjectPtr ret = NULL;
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| 43 | int clen;
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| 44 |
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| 45 | if ((nargs < 1) || (nargs > 2)) {
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| 46 | xmlXPathSetArityError(ctxt);
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| 47 | return;
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| 48 | }
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| 49 |
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| 50 | if (nargs == 2) {
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| 51 | delimiters = xmlXPathPopString(ctxt);
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| 52 | if (xmlXPathCheckError(ctxt))
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| 53 | return;
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| 54 | } else {
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| 55 | delimiters = xmlStrdup((const xmlChar *) "\t\r\n ");
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| 56 | }
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| 57 | if (delimiters == NULL)
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| 58 | return;
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| 59 |
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| 60 | str = xmlXPathPopString(ctxt);
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| 61 | if (xmlXPathCheckError(ctxt) || (str == NULL)) {
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| 62 | xmlFree(delimiters);
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| 63 | return;
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| 64 | }
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| 65 |
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| 66 | /* Return a result tree fragment */
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| 67 | tctxt = xsltXPathGetTransformContext(ctxt);
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| 68 | if (tctxt == NULL) {
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| 69 | xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL,
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| 70 | "exslt:tokenize : internal error tctxt == NULL\n");
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| 71 | goto fail;
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| 72 | }
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| 73 |
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| 74 | container = xsltCreateRVT(tctxt);
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| 75 | if (container != NULL) {
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| 76 | xsltRegisterLocalRVT(tctxt, container);
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| 77 | ret = xmlXPathNewNodeSet(NULL);
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| 78 | if (ret != NULL) {
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| 79 | for (cur = str, token = str; *cur != 0; cur += clen) {
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| 80 | clen = xmlUTF8Size(cur);
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| 81 | if (*delimiters == 0) { /* empty string case */
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| 82 | xmlChar ctmp;
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| 83 | ctmp = *(cur+clen);
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| 84 | *(cur+clen) = 0;
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| 85 | node = xmlNewDocRawNode(container, NULL,
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| 86 | (const xmlChar *) "token", cur);
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| 87 | xmlAddChild((xmlNodePtr) container, node);
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| 88 | xmlXPathNodeSetAddUnique(ret->nodesetval, node);
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| 89 | *(cur+clen) = ctmp; /* restore the changed byte */
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| 90 | token = cur + clen;
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| 91 | } else for (delimiter = delimiters; *delimiter != 0;
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| 92 | delimiter += xmlUTF8Size(delimiter)) {
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| 93 | if (!xmlUTF8Charcmp(cur, delimiter)) {
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| 94 | if (cur == token) {
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| 95 | /* discard empty tokens */
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| 96 | token = cur + clen;
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| 97 | break;
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| 98 | }
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| 99 | *cur = 0; /* terminate the token */
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| 100 | node = xmlNewDocRawNode(container, NULL,
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| 101 | (const xmlChar *) "token", token);
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| 102 | xmlAddChild((xmlNodePtr) container, node);
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| 103 | xmlXPathNodeSetAddUnique(ret->nodesetval, node);
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| 104 | *cur = *delimiter; /* restore the changed byte */
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| 105 | token = cur + clen;
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| 106 | break;
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| 107 | }
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| 108 | }
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| 109 | }
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| 110 | if (token != cur) {
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| 111 | node = xmlNewDocRawNode(container, NULL,
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| 112 | (const xmlChar *) "token", token);
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| 113 | xmlAddChild((xmlNodePtr) container, node);
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| 114 | xmlXPathNodeSetAddUnique(ret->nodesetval, node);
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| 115 | }
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| 116 | }
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| 117 | }
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| 118 |
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| 119 | fail:
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| 120 | if (str != NULL)
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| 121 | xmlFree(str);
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| 122 | if (delimiters != NULL)
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| 123 | xmlFree(delimiters);
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| 124 | if (ret != NULL)
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| 125 | valuePush(ctxt, ret);
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| 126 | else
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| 127 | valuePush(ctxt, xmlXPathNewNodeSet(NULL));
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| 128 | }
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| 129 |
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| 130 | /**
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| 131 | * exsltStrSplitFunction:
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| 132 | * @ctxt: an XPath parser context
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| 133 | * @nargs: the number of arguments
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| 134 | *
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| 135 | * Splits up a string on a delimiting string and returns a node set of token
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| 136 | * elements, each containing one token from the string.
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| 137 | */
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| 138 | static void
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| 139 | exsltStrSplitFunction(xmlXPathParserContextPtr ctxt, int nargs) {
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| 140 | xsltTransformContextPtr tctxt;
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| 141 | xmlChar *str, *delimiter, *cur;
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| 142 | const xmlChar *token;
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| 143 | xmlNodePtr node;
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| 144 | xmlDocPtr container;
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| 145 | xmlXPathObjectPtr ret = NULL;
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| 146 | int delimiterLength;
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| 147 |
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| 148 | if ((nargs < 1) || (nargs > 2)) {
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| 149 | xmlXPathSetArityError(ctxt);
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| 150 | return;
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| 151 | }
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| 152 |
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| 153 | if (nargs == 2) {
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| 154 | delimiter = xmlXPathPopString(ctxt);
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| 155 | if (xmlXPathCheckError(ctxt))
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| 156 | return;
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| 157 | } else {
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| 158 | delimiter = xmlStrdup((const xmlChar *) " ");
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| 159 | }
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| 160 | if (delimiter == NULL)
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| 161 | return;
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| 162 | delimiterLength = xmlStrlen (delimiter);
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| 163 |
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| 164 | str = xmlXPathPopString(ctxt);
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| 165 | if (xmlXPathCheckError(ctxt) || (str == NULL)) {
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| 166 | xmlFree(delimiter);
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| 167 | return;
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| 168 | }
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| 169 |
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| 170 | /* Return a result tree fragment */
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| 171 | tctxt = xsltXPathGetTransformContext(ctxt);
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| 172 | if (tctxt == NULL) {
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| 173 | xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL,
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| 174 | "exslt:tokenize : internal error tctxt == NULL\n");
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| 175 | goto fail;
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| 176 | }
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| 177 |
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| 178 | /*
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| 179 | * OPTIMIZE TODO: We are creating an xmlDoc for every split!
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| 180 | */
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| 181 | container = xsltCreateRVT(tctxt);
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| 182 | if (container != NULL) {
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| 183 | xsltRegisterLocalRVT(tctxt, container);
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| 184 | ret = xmlXPathNewNodeSet(NULL);
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| 185 | if (ret != NULL) {
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| 186 | for (cur = str, token = str; *cur != 0; cur++) {
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| 187 | if (delimiterLength == 0) {
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| 188 | if (cur != token) {
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| 189 | xmlChar tmp = *cur;
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| 190 | *cur = 0;
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| 191 | node = xmlNewDocRawNode(container, NULL,
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| 192 | (const xmlChar *) "token", token);
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| 193 | xmlAddChild((xmlNodePtr) container, node);
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| 194 | xmlXPathNodeSetAddUnique(ret->nodesetval, node);
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| 195 | *cur = tmp;
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| 196 | token++;
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| 197 | }
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| 198 | }
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| 199 | else if (!xmlStrncasecmp(cur, delimiter, delimiterLength)) {
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| 200 | if (cur == token) {
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| 201 | /* discard empty tokens */
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| 202 | cur = cur + delimiterLength - 1;
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| 203 | token = cur + 1;
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| 204 | continue;
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| 205 | }
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| 206 | *cur = 0;
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| 207 | node = xmlNewDocRawNode(container, NULL,
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| 208 | (const xmlChar *) "token", token);
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| 209 | xmlAddChild((xmlNodePtr) container, node);
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| 210 | xmlXPathNodeSetAddUnique(ret->nodesetval, node);
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| 211 | *cur = *delimiter;
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| 212 | cur = cur + delimiterLength - 1;
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| 213 | token = cur + 1;
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| 214 | }
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| 215 | }
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| 216 | if (token != cur) {
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| 217 | node = xmlNewDocRawNode(container, NULL,
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| 218 | (const xmlChar *) "token", token);
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| 219 | xmlAddChild((xmlNodePtr) container, node);
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| 220 | xmlXPathNodeSetAddUnique(ret->nodesetval, node);
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| 221 | }
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| 222 | }
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| 223 | }
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| 224 |
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| 225 | fail:
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| 226 | if (str != NULL)
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| 227 | xmlFree(str);
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| 228 | if (delimiter != NULL)
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| 229 | xmlFree(delimiter);
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| 230 | if (ret != NULL)
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| 231 | valuePush(ctxt, ret);
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| 232 | else
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| 233 | valuePush(ctxt, xmlXPathNewNodeSet(NULL));
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| 234 | }
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| 235 |
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| 236 | /**
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| 237 | * exsltStrEncodeUriFunction:
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| 238 | * @ctxt: an XPath parser context
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| 239 | * @nargs: the number of arguments
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| 240 | *
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| 241 | * URI-Escapes a string
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| 242 | */
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| 243 | static void
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| 244 | exsltStrEncodeUriFunction (xmlXPathParserContextPtr ctxt, int nargs) {
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| 245 | int escape_all = 1, str_len = 0;
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| 246 | xmlChar *str = NULL, *ret = NULL, *tmp;
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| 247 |
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| 248 | if ((nargs < 2) || (nargs > 3)) {
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| 249 | xmlXPathSetArityError(ctxt);
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| 250 | return;
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| 251 | }
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| 252 |
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| 253 | if (nargs >= 3) {
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| 254 | /* check for UTF-8 if encoding was explicitly given;
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| 255 | we don't support anything else yet */
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| 256 | tmp = xmlXPathPopString(ctxt);
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| 257 | if (xmlUTF8Strlen(tmp) != 5 || xmlStrcmp((const xmlChar *)"UTF-8",tmp)) {
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| 258 | xmlXPathReturnEmptyString(ctxt);
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| 259 | xmlFree(tmp);
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| 260 | return;
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| 261 | }
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| 262 | xmlFree(tmp);
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| 263 | }
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| 264 |
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| 265 | escape_all = xmlXPathPopBoolean(ctxt);
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| 266 |
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| 267 | str = xmlXPathPopString(ctxt);
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| 268 | str_len = xmlUTF8Strlen(str);
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| 269 |
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| 270 | if (str_len == 0) {
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| 271 | xmlXPathReturnEmptyString(ctxt);
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| 272 | xmlFree(str);
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| 273 | return;
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| 274 | }
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| 275 |
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| 276 | ret = xmlURIEscapeStr(str,(const xmlChar *)(escape_all?"-_.!~*'()":"-_.!~*'();/?:@&=+$,[]"));
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| 277 | xmlXPathReturnString(ctxt, ret);
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| 278 |
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| 279 | if (str != NULL)
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| 280 | xmlFree(str);
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| 281 | }
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| 282 |
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| 283 | /**
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| 284 | * exsltStrDecodeUriFunction:
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| 285 | * @ctxt: an XPath parser context
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| 286 | * @nargs: the number of arguments
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| 287 | *
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| 288 | * reverses URI-Escaping of a string
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| 289 | */
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| 290 | static void
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| 291 | exsltStrDecodeUriFunction (xmlXPathParserContextPtr ctxt, int nargs) {
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| 292 | int str_len = 0;
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| 293 | xmlChar *str = NULL, *ret = NULL, *tmp;
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| 294 |
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| 295 | if ((nargs < 1) || (nargs > 2)) {
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| 296 | xmlXPathSetArityError(ctxt);
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| 297 | return;
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| 298 | }
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| 299 |
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| 300 | if (nargs >= 2) {
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| 301 | /* check for UTF-8 if encoding was explicitly given;
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| 302 | we don't support anything else yet */
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| 303 | tmp = xmlXPathPopString(ctxt);
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| 304 | if (xmlUTF8Strlen(tmp) != 5 || xmlStrcmp((const xmlChar *)"UTF-8",tmp)) {
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| 305 | xmlXPathReturnEmptyString(ctxt);
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| 306 | xmlFree(tmp);
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| 307 | return;
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| 308 | }
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| 309 | xmlFree(tmp);
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| 310 | }
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| 311 |
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| 312 | str = xmlXPathPopString(ctxt);
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| 313 | str_len = xmlUTF8Strlen(str);
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| 314 |
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| 315 | if (str_len == 0) {
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| 316 | xmlXPathReturnEmptyString(ctxt);
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| 317 | xmlFree(str);
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| 318 | return;
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| 319 | }
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| 320 |
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| 321 | ret = (xmlChar *) xmlURIUnescapeString((const char *)str,0,NULL);
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| 322 | if (!xmlCheckUTF8(ret)) {
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| 323 | /* FIXME: instead of throwing away the whole URI, we should
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| 324 | only discard the invalid sequence(s). How to do that? */
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| 325 | xmlXPathReturnEmptyString(ctxt);
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| 326 | xmlFree(str);
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| 327 | xmlFree(ret);
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| 328 | return;
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| 329 | }
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| 330 |
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| 331 | xmlXPathReturnString(ctxt, ret);
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| 332 |
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| 333 | if (str != NULL)
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| 334 | xmlFree(str);
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| 335 | }
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| 336 |
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| 337 | /**
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| 338 | * exsltStrPaddingFunction:
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| 339 | * @ctxt: an XPath parser context
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| 340 | * @nargs: the number of arguments
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| 341 | *
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| 342 | * Creates a padding string of a certain length.
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| 343 | */
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| 344 | static void
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| 345 | exsltStrPaddingFunction (xmlXPathParserContextPtr ctxt, int nargs) {
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| 346 | int number, str_len = 0;
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| 347 | xmlChar *str = NULL, *ret = NULL, *tmp;
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| 348 |
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| 349 | if ((nargs < 1) || (nargs > 2)) {
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| 350 | xmlXPathSetArityError(ctxt);
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| 351 | return;
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| 352 | }
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| 353 |
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| 354 | if (nargs == 2) {
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| 355 | str = xmlXPathPopString(ctxt);
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| 356 | str_len = xmlUTF8Strlen(str);
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| 357 | }
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| 358 | if (str_len == 0) {
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| 359 | if (str != NULL) xmlFree(str);
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| 360 | str = xmlStrdup((const xmlChar *) " ");
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| 361 | str_len = 1;
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| 362 | }
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| 363 |
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| 364 | number = (int) xmlXPathPopNumber(ctxt);
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| 365 |
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| 366 | if (number <= 0) {
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| 367 | xmlXPathReturnEmptyString(ctxt);
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| 368 | xmlFree(str);
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| 369 | return;
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| 370 | }
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| 371 |
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| 372 | while (number >= str_len) {
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| 373 | ret = xmlStrncat(ret, str, str_len);
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| 374 | number -= str_len;
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| 375 | }
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| 376 | tmp = xmlUTF8Strndup (str, number);
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| 377 | ret = xmlStrcat(ret, tmp);
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| 378 | if (tmp != NULL)
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| 379 | xmlFree (tmp);
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| 380 |
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| 381 | xmlXPathReturnString(ctxt, ret);
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| 382 |
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| 383 | if (str != NULL)
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| 384 | xmlFree(str);
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| 385 | }
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| 386 |
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| 387 | /**
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| 388 | * exsltStrAlignFunction:
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| 389 | * @ctxt: an XPath parser context
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| 390 | * @nargs: the number of arguments
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| 391 | *
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| 392 | * Aligns a string within another string.
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| 393 | */
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| 394 | static void
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| 395 | exsltStrAlignFunction (xmlXPathParserContextPtr ctxt, int nargs) {
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| 396 | xmlChar *str, *padding, *alignment, *ret;
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| 397 | int str_l, padding_l;
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| 398 |
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| 399 | if ((nargs < 2) || (nargs > 3)) {
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| 400 | xmlXPathSetArityError(ctxt);
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| 401 | return;
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| 402 | }
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| 403 |
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| 404 | if (nargs == 3)
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| 405 | alignment = xmlXPathPopString(ctxt);
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| 406 | else
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| 407 | alignment = NULL;
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| 408 |
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| 409 | padding = xmlXPathPopString(ctxt);
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| 410 | str = xmlXPathPopString(ctxt);
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| 411 |
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| 412 | str_l = xmlUTF8Strlen (str);
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| 413 | padding_l = xmlUTF8Strlen (padding);
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| 414 |
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| 415 | if (str_l == padding_l) {
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| 416 | xmlXPathReturnString (ctxt, str);
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| 417 | xmlFree(padding);
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| 418 | xmlFree(alignment);
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| 419 | return;
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| 420 | }
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| 421 |
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| 422 | if (str_l > padding_l) {
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| 423 | ret = xmlUTF8Strndup (str, padding_l);
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| 424 | } else {
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| 425 | if (xmlStrEqual(alignment, (const xmlChar *) "right")) {
|
|---|
| 426 | ret = xmlUTF8Strndup (padding, padding_l - str_l);
|
|---|
| 427 | ret = xmlStrcat (ret, str);
|
|---|
| 428 | } else if (xmlStrEqual(alignment, (const xmlChar *) "center")) {
|
|---|
| 429 | int left = (padding_l - str_l) / 2;
|
|---|
| 430 | int right_start;
|
|---|
| 431 |
|
|---|
| 432 | ret = xmlUTF8Strndup (padding, left);
|
|---|
| 433 | ret = xmlStrcat (ret, str);
|
|---|
| 434 |
|
|---|
| 435 | right_start = xmlUTF8Strsize (padding, left + str_l);
|
|---|
| 436 | ret = xmlStrcat (ret, padding + right_start);
|
|---|
| 437 | } else {
|
|---|
| 438 | int str_s;
|
|---|
| 439 |
|
|---|
| 440 | str_s = xmlStrlen (str);
|
|---|
| 441 | ret = xmlStrdup (str);
|
|---|
| 442 | ret = xmlStrcat (ret, padding + str_s);
|
|---|
| 443 | }
|
|---|
| 444 | }
|
|---|
| 445 |
|
|---|
| 446 | xmlXPathReturnString (ctxt, ret);
|
|---|
| 447 |
|
|---|
| 448 | xmlFree(str);
|
|---|
| 449 | xmlFree(padding);
|
|---|
| 450 | xmlFree(alignment);
|
|---|
| 451 | }
|
|---|
| 452 |
|
|---|
| 453 | /**
|
|---|
| 454 | * exsltStrConcatFunction:
|
|---|
| 455 | * @ctxt: an XPath parser context
|
|---|
| 456 | * @nargs: the number of arguments
|
|---|
| 457 | *
|
|---|
| 458 | * Takes a node set and returns the concatenation of the string values
|
|---|
| 459 | * of the nodes in that node set. If the node set is empty, it
|
|---|
| 460 | * returns an empty string.
|
|---|
| 461 | */
|
|---|
| 462 | static void
|
|---|
| 463 | exsltStrConcatFunction (xmlXPathParserContextPtr ctxt, int nargs) {
|
|---|
| 464 | xmlXPathObjectPtr obj;
|
|---|
| 465 | xmlChar *ret = NULL;
|
|---|
| 466 | int i;
|
|---|
| 467 |
|
|---|
| 468 | if (nargs != 1) {
|
|---|
| 469 | xmlXPathSetArityError(ctxt);
|
|---|
| 470 | return;
|
|---|
| 471 | }
|
|---|
| 472 |
|
|---|
| 473 | if (!xmlXPathStackIsNodeSet(ctxt)) {
|
|---|
| 474 | xmlXPathSetTypeError(ctxt);
|
|---|
| 475 | return;
|
|---|
| 476 | }
|
|---|
| 477 |
|
|---|
| 478 | obj = valuePop (ctxt);
|
|---|
| 479 |
|
|---|
| 480 | if (xmlXPathNodeSetIsEmpty(obj->nodesetval)) {
|
|---|
| 481 | xmlXPathReturnEmptyString(ctxt);
|
|---|
| 482 | return;
|
|---|
| 483 | }
|
|---|
| 484 |
|
|---|
| 485 | for (i = 0; i < obj->nodesetval->nodeNr; i++) {
|
|---|
| 486 | xmlChar *tmp;
|
|---|
| 487 | tmp = xmlXPathCastNodeToString(obj->nodesetval->nodeTab[i]);
|
|---|
| 488 |
|
|---|
| 489 | ret = xmlStrcat (ret, tmp);
|
|---|
| 490 |
|
|---|
| 491 | xmlFree(tmp);
|
|---|
| 492 | }
|
|---|
| 493 |
|
|---|
| 494 | xmlXPathFreeObject (obj);
|
|---|
| 495 |
|
|---|
| 496 | xmlXPathReturnString(ctxt, ret);
|
|---|
| 497 | }
|
|---|
| 498 |
|
|---|
| 499 | /**
|
|---|
| 500 | * exsltStrReplaceInternal:
|
|---|
| 501 | * @str: string to modify
|
|---|
| 502 | * @searchStr: string to find
|
|---|
| 503 | * @replaceStr: string to replace occurrences of searchStr
|
|---|
| 504 | *
|
|---|
| 505 | * Search and replace string function used by exsltStrReplaceFunction
|
|---|
| 506 | */
|
|---|
| 507 | static xmlChar*
|
|---|
| 508 | exsltStrReplaceInternal(const xmlChar* str, const xmlChar* searchStr,
|
|---|
| 509 | const xmlChar* replaceStr)
|
|---|
| 510 | {
|
|---|
| 511 | const xmlChar *curr, *next;
|
|---|
| 512 | xmlChar *ret = NULL;
|
|---|
| 513 | int searchStrSize;
|
|---|
| 514 |
|
|---|
| 515 | curr = str;
|
|---|
| 516 | searchStrSize = xmlStrlen(searchStr);
|
|---|
| 517 |
|
|---|
| 518 | do {
|
|---|
| 519 | next = xmlStrstr(curr, searchStr);
|
|---|
| 520 | if (next == NULL) {
|
|---|
| 521 | ret = xmlStrcat (ret, curr);
|
|---|
| 522 | break;
|
|---|
| 523 | }
|
|---|
| 524 |
|
|---|
| 525 | ret = xmlStrncat (ret, curr, next - curr);
|
|---|
| 526 | ret = xmlStrcat (ret, replaceStr);
|
|---|
| 527 | curr = next + searchStrSize;
|
|---|
| 528 | } while (*curr != 0);
|
|---|
| 529 |
|
|---|
| 530 | return ret;
|
|---|
| 531 | }
|
|---|
| 532 | /**
|
|---|
| 533 | * exsltStrReplaceFunction:
|
|---|
| 534 | * @ctxt: an XPath parser context
|
|---|
| 535 | * @nargs: the number of arguments
|
|---|
| 536 | *
|
|---|
| 537 | * Takes a string, and two node sets and returns the string with all strings in
|
|---|
| 538 | * the first node set replaced by all strings in the second node set.
|
|---|
| 539 | */
|
|---|
| 540 | static void
|
|---|
| 541 | exsltStrReplaceFunction (xmlXPathParserContextPtr ctxt, int nargs) {
|
|---|
| 542 | xmlChar *str = NULL, *searchStr = NULL, *replaceStr = NULL;
|
|---|
| 543 | xmlNodeSetPtr replaceSet = NULL, searchSet = NULL;
|
|---|
| 544 | xmlChar *ret = NULL, *retSwap = NULL;
|
|---|
| 545 | int i;
|
|---|
| 546 |
|
|---|
| 547 | if (nargs != 3) {
|
|---|
| 548 | xmlXPathSetArityError(ctxt);
|
|---|
| 549 | return;
|
|---|
| 550 | }
|
|---|
| 551 |
|
|---|
| 552 | /* pull out replace argument */
|
|---|
| 553 | if (!xmlXPathStackIsNodeSet(ctxt)) {
|
|---|
| 554 | replaceStr = xmlXPathPopString(ctxt);
|
|---|
| 555 | }
|
|---|
| 556 | else {
|
|---|
| 557 | replaceSet = xmlXPathPopNodeSet(ctxt);
|
|---|
| 558 | if (xmlXPathCheckError(ctxt)) {
|
|---|
| 559 | xmlXPathSetTypeError(ctxt);
|
|---|
| 560 | goto fail;
|
|---|
| 561 | }
|
|---|
| 562 | }
|
|---|
| 563 |
|
|---|
| 564 | /* behavior driven by search argument from here on */
|
|---|
| 565 | if (!xmlXPathStackIsNodeSet(ctxt)) {
|
|---|
| 566 | searchStr = xmlXPathPopString(ctxt);
|
|---|
| 567 | str = xmlXPathPopString(ctxt);
|
|---|
| 568 |
|
|---|
| 569 | if (replaceStr == NULL) {
|
|---|
| 570 | xmlXPathSetTypeError(ctxt);
|
|---|
| 571 | goto fail;
|
|---|
| 572 | }
|
|---|
| 573 |
|
|---|
| 574 | ret = exsltStrReplaceInternal(str, searchStr, replaceStr);
|
|---|
| 575 | }
|
|---|
| 576 | else {
|
|---|
| 577 | searchSet = xmlXPathPopNodeSet(ctxt);
|
|---|
| 578 | if (searchSet == NULL || xmlXPathCheckError(ctxt)) {
|
|---|
| 579 | xmlXPathSetTypeError(ctxt);
|
|---|
| 580 | goto fail;
|
|---|
| 581 | }
|
|---|
| 582 |
|
|---|
| 583 | str = xmlXPathPopString(ctxt);
|
|---|
| 584 | ret = xmlStrdup(str);
|
|---|
| 585 |
|
|---|
| 586 | for (i = 0; i < searchSet->nodeNr; i++) {
|
|---|
| 587 |
|
|---|
| 588 | searchStr = xmlXPathCastNodeToString(searchSet->nodeTab[i]);
|
|---|
| 589 |
|
|---|
| 590 | if (replaceSet != NULL) {
|
|---|
| 591 | replaceStr = NULL;
|
|---|
| 592 | if (i <= replaceSet->nodeNr) {
|
|---|
| 593 | replaceStr = xmlXPathCastNodeToString(replaceSet->nodeTab[i]);
|
|---|
| 594 | }
|
|---|
| 595 |
|
|---|
| 596 | retSwap = exsltStrReplaceInternal(ret, searchStr, replaceStr);
|
|---|
| 597 |
|
|---|
| 598 | if (replaceStr != NULL) {
|
|---|
| 599 | xmlFree(replaceStr);
|
|---|
| 600 | replaceStr = NULL;
|
|---|
| 601 | }
|
|---|
| 602 | }
|
|---|
| 603 | else {
|
|---|
| 604 | retSwap = exsltStrReplaceInternal(ret, searchStr, replaceStr);
|
|---|
| 605 | }
|
|---|
| 606 |
|
|---|
| 607 | xmlFree(ret);
|
|---|
| 608 | if (searchStr != NULL) {
|
|---|
| 609 | xmlFree(searchStr);
|
|---|
| 610 | searchStr = NULL;
|
|---|
| 611 | }
|
|---|
| 612 |
|
|---|
| 613 | ret = retSwap;
|
|---|
| 614 | }
|
|---|
| 615 |
|
|---|
| 616 | if (replaceSet != NULL)
|
|---|
| 617 | xmlXPathFreeNodeSet(replaceSet);
|
|---|
| 618 |
|
|---|
| 619 | if (searchSet != NULL)
|
|---|
| 620 | xmlXPathFreeNodeSet(searchSet);
|
|---|
| 621 | }
|
|---|
| 622 |
|
|---|
| 623 | xmlXPathReturnString(ctxt, ret);
|
|---|
| 624 |
|
|---|
| 625 | fail:
|
|---|
| 626 | if (replaceStr != NULL)
|
|---|
| 627 | xmlFree(replaceStr);
|
|---|
| 628 |
|
|---|
| 629 | if (searchStr != NULL)
|
|---|
| 630 | xmlFree(searchStr);
|
|---|
| 631 |
|
|---|
| 632 | if (str != NULL)
|
|---|
| 633 | xmlFree(str);
|
|---|
| 634 | }
|
|---|
| 635 |
|
|---|
| 636 | /**
|
|---|
| 637 | * exsltStrRegister:
|
|---|
| 638 | *
|
|---|
| 639 | * Registers the EXSLT - Strings module
|
|---|
| 640 | */
|
|---|
| 641 |
|
|---|
| 642 | void
|
|---|
| 643 | exsltStrRegister (void) {
|
|---|
| 644 | xsltRegisterExtModuleFunction ((const xmlChar *) "tokenize",
|
|---|
| 645 | EXSLT_STRINGS_NAMESPACE,
|
|---|
| 646 | exsltStrTokenizeFunction);
|
|---|
| 647 | xsltRegisterExtModuleFunction ((const xmlChar *) "split",
|
|---|
| 648 | EXSLT_STRINGS_NAMESPACE,
|
|---|
| 649 | exsltStrSplitFunction);
|
|---|
| 650 | xsltRegisterExtModuleFunction ((const xmlChar *) "encode-uri",
|
|---|
| 651 | EXSLT_STRINGS_NAMESPACE,
|
|---|
| 652 | exsltStrEncodeUriFunction);
|
|---|
| 653 | xsltRegisterExtModuleFunction ((const xmlChar *) "decode-uri",
|
|---|
| 654 | EXSLT_STRINGS_NAMESPACE,
|
|---|
| 655 | exsltStrDecodeUriFunction);
|
|---|
| 656 | xsltRegisterExtModuleFunction ((const xmlChar *) "padding",
|
|---|
| 657 | EXSLT_STRINGS_NAMESPACE,
|
|---|
| 658 | exsltStrPaddingFunction);
|
|---|
| 659 | xsltRegisterExtModuleFunction ((const xmlChar *) "align",
|
|---|
| 660 | EXSLT_STRINGS_NAMESPACE,
|
|---|
| 661 | exsltStrAlignFunction);
|
|---|
| 662 | xsltRegisterExtModuleFunction ((const xmlChar *) "concat",
|
|---|
| 663 | EXSLT_STRINGS_NAMESPACE,
|
|---|
| 664 | exsltStrConcatFunction);
|
|---|
| 665 | xsltRegisterExtModuleFunction ((const xmlChar *) "replace",
|
|---|
| 666 | EXSLT_STRINGS_NAMESPACE,
|
|---|
| 667 | exsltStrReplaceFunction);
|
|---|
| 668 | }
|
|---|
