Annotation of XML/xpathInternals.h, revision 1.2
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);
1.2 ! veillard 151: void xmlXPathLocalNameFunction(xmlXPathParserContextPtr ctxt, int nargs);
! 152: void xmlXPathNamespaceURIFunction(xmlXPathParserContextPtr ctxt, int nargs);
1.1 veillard 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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