Annotation of XML/xpathInternals.h, revision 1.1
1.1 ! veillard 1: /*
! 2: * xpath.c: internal interfaces for XML Path Language implementation
! 3: * used to build new modules on top of XPath
! 4: *
! 5: * See COPYRIGHT for the status of this software
! 6: *
! 7: * Author: Daniel.Veillard@w3.org
! 8: */
! 9:
! 10: #ifndef __XML_XPATH_INTERNALS_H__
! 11: #define __XML_XPATH_INTERNALS_H__
! 12:
! 13: #include <libxml/xpath.h>
! 14:
! 15: #ifdef __cplusplus
! 16: extern "C" {
! 17: #endif
! 18:
! 19: /************************************************************************
! 20: * *
! 21: * Helpers *
! 22: * *
! 23: ************************************************************************/
! 24:
! 25: #define CHECK_ERROR \
! 26: if (ctxt->error != XPATH_EXPRESSION_OK) return
! 27:
! 28: #define CHECK_ERROR0 \
! 29: if (ctxt->error != XPATH_EXPRESSION_OK) return(0)
! 30:
! 31: #define XP_ERROR(X) \
! 32: { xmlXPatherror(ctxt, __FILE__, __LINE__, X); \
! 33: ctxt->error = (X); return; }
! 34:
! 35: #define XP_ERROR0(X) \
! 36: { xmlXPatherror(ctxt, __FILE__, __LINE__, X); \
! 37: ctxt->error = (X); return(0); }
! 38:
! 39: #define CHECK_TYPE(typeval) \
! 40: if ((ctxt->value == NULL) || (ctxt->value->type != typeval)) \
! 41: XP_ERROR(XPATH_INVALID_TYPE) \
! 42:
! 43: #define CHECK_ARITY(x) \
! 44: if (nargs != (x)) { \
! 45: XP_ERROR(XPATH_INVALID_ARITY); \
! 46: } \
! 47:
! 48: void xmlXPatherror (xmlXPathParserContextPtr ctxt,
! 49: const char *file,
! 50: int line,
! 51: int no);
! 52:
! 53: void xmlXPathDebugDumpObject (FILE *output,
! 54: xmlXPathObjectPtr cur,
! 55: int depth);
! 56:
! 57: /**
! 58: * Extending a context
! 59: */
! 60: int xmlXPathRegisterFunc (xmlXPathContextPtr ctxt,
! 61: const xmlChar *name,
! 62: xmlXPathFunction f);
! 63: int xmlXPathRegisterVariable (xmlXPathContextPtr ctxt,
! 64: const xmlChar *name,
! 65: xmlXPathObjectPtr value);
! 66: xmlXPathFunction xmlXPathFunctionLookup (xmlXPathContextPtr ctxt,
! 67: const xmlChar *name);
! 68: void xmlXPathRegisteredFuncsCleanup(xmlXPathContextPtr ctxt);
! 69: xmlXPathObjectPtr xmlXPathVariableLookup (xmlXPathContextPtr ctxt,
! 70: const xmlChar *name);
! 71: void xmlXPathRegisteredVariablesCleanup(xmlXPathContextPtr ctxt);
! 72:
! 73: /**
! 74: * Utilities to extend XPath
! 75: */
! 76: xmlXPathParserContextPtr
! 77: xmlXPathNewParserContext (const xmlChar *str,
! 78: xmlXPathContextPtr ctxt);
! 79: void xmlXPathFreeParserContext (xmlXPathParserContextPtr ctxt);
! 80:
! 81: xmlXPathObjectPtr valuePop (xmlXPathParserContextPtr ctxt);
! 82: int valuePush (xmlXPathParserContextPtr ctxt,
! 83: xmlXPathObjectPtr value);
! 84:
! 85: xmlXPathObjectPtr xmlXPathNewString (const xmlChar *val);
! 86: xmlXPathObjectPtr xmlXPathNewCString (const char *val);
! 87: xmlXPathObjectPtr xmlXPathNewFloat (double val);
! 88: xmlXPathObjectPtr xmlXPathNewBoolean (int val);
! 89: xmlXPathObjectPtr xmlXPathNewNodeSet (xmlNodePtr val);
! 90: void xmlXPathNodeSetAdd (xmlNodeSetPtr cur,
! 91: xmlNodePtr val);
! 92:
! 93:
! 94: void xmlXPathIdFunction (xmlXPathParserContextPtr ctxt,
! 95: int nargs);
! 96: void xmlXPathRoot (xmlXPathParserContextPtr ctxt);
! 97: void xmlXPathEvalExpr (xmlXPathParserContextPtr ctxt);
! 98: xmlChar * xmlXPathParseName (xmlXPathParserContextPtr ctxt);
! 99:
! 100: /*
! 101: * Debug
! 102: */
! 103: #ifdef LIBXML_DEBUG_ENABLED
! 104: double xmlXPathStringEvalNumber(const xmlChar *str);
! 105: void xmlXPathDebugDumpObject(FILE *output, xmlXPathObjectPtr cur, int depth);
! 106: #endif
! 107: /*
! 108: * Existing functions
! 109: */
! 110:
! 111: void xmlXPathInit(void);
! 112: void xmlXPathStringFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 113: void xmlXPathRegisterAllFunctions(xmlXPathContextPtr ctxt);
! 114: xmlNodeSetPtr xmlXPathNodeSetCreate(xmlNodePtr val);
! 115: void xmlXPathNodeSetAdd(xmlNodeSetPtr cur, xmlNodePtr val);
! 116: xmlNodeSetPtr xmlXPathNodeSetMerge(xmlNodeSetPtr val1, xmlNodeSetPtr val2);
! 117: void xmlXPathNodeSetDel(xmlNodeSetPtr cur, xmlNodePtr val);
! 118: void xmlXPathNodeSetRemove(xmlNodeSetPtr cur, int val);
! 119: void xmlXPathFreeNodeSet(xmlNodeSetPtr obj);
! 120: xmlXPathObjectPtr xmlXPathNewNodeSet(xmlNodePtr val);
! 121: xmlXPathObjectPtr xmlXPathNewNodeSetList(xmlNodeSetPtr val);
! 122: xmlXPathObjectPtr xmlXPathWrapNodeSet(xmlNodeSetPtr val);
! 123: void xmlXPathFreeNodeSetList(xmlXPathObjectPtr obj);
! 124:
! 125:
! 126: xmlXPathObjectPtr xmlXPathNewFloat(double val);
! 127: xmlXPathObjectPtr xmlXPathNewBoolean(int val);
! 128: xmlXPathObjectPtr xmlXPathNewString(const xmlChar *val);
! 129: xmlXPathObjectPtr xmlXPathNewCString(const char *val);
! 130: void xmlXPathFreeObject(xmlXPathObjectPtr obj);
! 131: xmlXPathContextPtr xmlXPathNewContext(xmlDocPtr doc);
! 132: void xmlXPathFreeContext(xmlXPathContextPtr ctxt);
! 133:
! 134: int xmlXPathEqualValues(xmlXPathParserContextPtr ctxt);
! 135: int xmlXPathCompareValues(xmlXPathParserContextPtr ctxt, int inf, int strict);
! 136: void xmlXPathValueFlipSign(xmlXPathParserContextPtr ctxt);
! 137: void xmlXPathAddValues(xmlXPathParserContextPtr ctxt);
! 138: void xmlXPathSubValues(xmlXPathParserContextPtr ctxt);
! 139: void xmlXPathMultValues(xmlXPathParserContextPtr ctxt);
! 140: void xmlXPathDivValues(xmlXPathParserContextPtr ctxt);
! 141: void xmlXPathModValues(xmlXPathParserContextPtr ctxt);
! 142:
! 143: /*
! 144: * The official core of XPath functions
! 145: */
! 146: void xmlXPathRoot(xmlXPathParserContextPtr ctxt);
! 147: void xmlXPathLastFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 148: void xmlXPathPositionFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 149: void xmlXPathCountFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 150: void xmlXPathIdFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 151: void xmlXPathLocalPartFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 152: void xmlXPathNamespaceFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 153: void xmlXPathStringFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 154: void xmlXPathStringLengthFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 155: void xmlXPathConcatFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 156: void xmlXPathContainsFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 157: void xmlXPathStartsWithFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 158: void xmlXPathSubstringFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 159: void xmlXPathSubstringBeforeFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 160: void xmlXPathSubstringAfterFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 161: void xmlXPathNormalizeFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 162: void xmlXPathTranslateFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 163: void xmlXPathNotFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 164: void xmlXPathTrueFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 165: void xmlXPathFalseFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 166: void xmlXPathLangFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 167: void xmlXPathNumberFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 168: void xmlXPathSumFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 169: void xmlXPathFloorFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 170: void xmlXPathCeilingFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 171: void xmlXPathRoundFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 172: #ifdef __cplusplus
! 173: }
! 174: #endif
! 175: #endif /* ! __XML_XPATH_INTERNALS_H__ */
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