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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216/* * Summary: regular expressions handling * Description: basic API for libxml regular expressions handling used * for XML Schemas and validation. * * Copy: See Copyright for the status of this software. * * Author: Daniel Veillard */
#ifndef __XML_REGEXP_H__#define __XML_REGEXP_H__
#include <stdio.h>#include <libxml/xmlversion.h>#include <libxml/xmlstring.h>
#ifdef LIBXML_REGEXP_ENABLED
#ifdef __cplusplusextern "C" {#endif
/** * xmlRegexpPtr: * * A libxml regular expression, they can actually be far more complex * thank the POSIX regex expressions. */typedef struct _xmlRegexp xmlRegexp;typedef xmlRegexp *xmlRegexpPtr;
/** * xmlRegExecCtxtPtr: * * A libxml progressive regular expression evaluation context */typedef struct _xmlRegExecCtxt xmlRegExecCtxt;typedef xmlRegExecCtxt *xmlRegExecCtxtPtr;
/* * The POSIX like API */XMLPUBFUN xmlRegexpPtr xmlRegexpCompile (const xmlChar *regexp);XMLPUBFUN void xmlRegFreeRegexp(xmlRegexpPtr regexp);XMLPUBFUN int xmlRegexpExec (xmlRegexpPtr comp, const xmlChar *value);XMLPUBFUN void xmlRegexpPrint (FILE *output, xmlRegexpPtr regexp);XMLPUBFUN int xmlRegexpIsDeterminist(xmlRegexpPtr comp);
/** * xmlRegExecCallbacks: * @exec: the regular expression context * @token: the current token string * @transdata: transition data * @inputdata: input data * * Callback function when doing a transition in the automata */typedef void (*xmlRegExecCallbacks) (xmlRegExecCtxtPtr exec, const xmlChar *token, void *transdata, void *inputdata);
/* * The progressive API */XMLPUBFUN xmlRegExecCtxtPtr xmlRegNewExecCtxt (xmlRegexpPtr comp, xmlRegExecCallbacks callback, void *data);XMLPUBFUN void xmlRegFreeExecCtxt (xmlRegExecCtxtPtr exec);XMLPUBFUN int xmlRegExecPushString(xmlRegExecCtxtPtr exec, const xmlChar *value, void *data);XMLPUBFUN int xmlRegExecPushString2(xmlRegExecCtxtPtr exec, const xmlChar *value, const xmlChar *value2, void *data);
XMLPUBFUN int xmlRegExecNextValues(xmlRegExecCtxtPtr exec, int *nbval, int *nbneg, xmlChar **values, int *terminal);XMLPUBFUN int xmlRegExecErrInfo (xmlRegExecCtxtPtr exec, const xmlChar **string, int *nbval, int *nbneg, xmlChar **values, int *terminal);#ifdef LIBXML_EXPR_ENABLED/* * Formal regular expression handling * Its goal is to do some formal work on content models */
/* expressions are used within a context */typedef struct _xmlExpCtxt xmlExpCtxt;typedef xmlExpCtxt *xmlExpCtxtPtr;
XMLPUBFUN void xmlExpFreeCtxt (xmlExpCtxtPtr ctxt);XMLPUBFUN xmlExpCtxtPtr xmlExpNewCtxt (int maxNodes, xmlDictPtr dict);
XMLPUBFUN int xmlExpCtxtNbNodes(xmlExpCtxtPtr ctxt);XMLPUBFUN int xmlExpCtxtNbCons(xmlExpCtxtPtr ctxt);
/* Expressions are trees but the tree is opaque */typedef struct _xmlExpNode xmlExpNode;typedef xmlExpNode *xmlExpNodePtr;
typedef enum { XML_EXP_EMPTY = 0, XML_EXP_FORBID = 1, XML_EXP_ATOM = 2, XML_EXP_SEQ = 3, XML_EXP_OR = 4, XML_EXP_COUNT = 5} xmlExpNodeType;
/* * 2 core expressions shared by all for the empty language set * and for the set with just the empty token */XMLPUBVAR xmlExpNodePtr forbiddenExp;XMLPUBVAR xmlExpNodePtr emptyExp;
/* * Expressions are reference counted internally */XMLPUBFUN void xmlExpFree (xmlExpCtxtPtr ctxt, xmlExpNodePtr expr);XMLPUBFUN void xmlExpRef (xmlExpNodePtr expr);
/* * constructors can be either manual or from a string */XMLPUBFUN xmlExpNodePtr xmlExpParse (xmlExpCtxtPtr ctxt, const char *expr);XMLPUBFUN xmlExpNodePtr xmlExpNewAtom (xmlExpCtxtPtr ctxt, const xmlChar *name, int len);XMLPUBFUN xmlExpNodePtr xmlExpNewOr (xmlExpCtxtPtr ctxt, xmlExpNodePtr left, xmlExpNodePtr right);XMLPUBFUN xmlExpNodePtr xmlExpNewSeq (xmlExpCtxtPtr ctxt, xmlExpNodePtr left, xmlExpNodePtr right);XMLPUBFUN xmlExpNodePtr xmlExpNewRange (xmlExpCtxtPtr ctxt, xmlExpNodePtr subset, int min, int max);/* * The really interesting APIs */XMLPUBFUN int xmlExpIsNillable(xmlExpNodePtr expr);XMLPUBFUN int xmlExpMaxToken (xmlExpNodePtr expr);XMLPUBFUN int xmlExpGetLanguage(xmlExpCtxtPtr ctxt, xmlExpNodePtr expr, const xmlChar**langList, int len);XMLPUBFUN int xmlExpGetStart (xmlExpCtxtPtr ctxt, xmlExpNodePtr expr, const xmlChar**tokList, int len);XMLPUBFUN xmlExpNodePtr xmlExpStringDerive(xmlExpCtxtPtr ctxt, xmlExpNodePtr expr, const xmlChar *str, int len);XMLPUBFUN xmlExpNodePtr xmlExpExpDerive (xmlExpCtxtPtr ctxt, xmlExpNodePtr expr, xmlExpNodePtr sub);XMLPUBFUN int xmlExpSubsume (xmlExpCtxtPtr ctxt, xmlExpNodePtr expr, xmlExpNodePtr sub);XMLPUBFUN void xmlExpDump (xmlBufferPtr buf, xmlExpNodePtr expr);#endif /* LIBXML_EXPR_ENABLED */#ifdef __cplusplus}#endif
#endif /* LIBXML_REGEXP_ENABLED */
#endif /*__XML_REGEXP_H__ */