From: Adam Dickmeiss Date: Wed, 14 Nov 2007 21:03:59 +0000 (+0000) Subject: Doxygen comments X-Git-Tag: YAZ.3.0.18~24 X-Git-Url: http://lists.indexdata.dk/?a=commitdiff_plain;h=861508216f18c9e932adf4b421b47bd8e4738327;p=yaz-moved-to-github.git Doxygen comments --- diff --git a/include/yaz/cql.h b/include/yaz/cql.h index ceb5abf..458d630 100644 --- a/include/yaz/cql.h +++ b/include/yaz/cql.h @@ -24,7 +24,7 @@ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/* $Id: cql.h,v 1.18 2007-03-21 10:12:09 adam Exp $ */ +/* $Id: cql.h,v 1.19 2007-11-14 21:03:59 adam Exp $ */ /** \file cql.h \brief Header with public definitions about CQL. @@ -37,65 +37,72 @@ YAZ_BEGIN_CDECL -/** CQL parser handle */ +/** \brief CQL parser handle (opaque pointer) */ typedef struct cql_parser *CQL_parser; -/** - * Creates a CQL parser. - * Returns CQL parser handle or NULL if parser could not be created. +/** \brief creates a CQL parser. + \returns CCL parser + + Returns CQL parser or NULL if parser could not be created. */ YAZ_EXPORT CQL_parser cql_parser_create(void); -/** - * Destroys a CQL parser. - * - * This function does nothing if NULL if received. +/** \brief destroys a CQL parser. + \param cp CQL parser + + This function does nothing if NULL if received. */ YAZ_EXPORT void cql_parser_destroy(CQL_parser cp); -/** - * Parses a CQL string query. - * - * Returns 0 if on success; non-zero (error code) on failure. +/** \brief parses a CQL query (string) + \param cp CQL parser + \param str CQL string + \retval 0 success + \retval !=0 failure */ YAZ_EXPORT int cql_parser_string(CQL_parser cp, const char *str); -/** - * Parses a CQL query - streamed query. - * - * This function is similar to cql_parser_string but takes a - * functions to read each query character from a stream. - * - * The functions pointers getbytes, ungetbyte are similar to - * that known from stdios getc, ungetc. - * - * Returns 0 if on success; non-zero (error code) on failure. - */ +/** \brief parses CQL query (query stream) + \param cp CQL parser + \param getbyte function which reads one character from stream + \param ungetbyte function which unreads one character from stream + \param client_data data to be passed to stream functions + \retval 0 success + \retval !=0 failure + + This function is similar to cql_parser_string but takes a + functions to read each query character from a stream. + + The functions pointers getbytes, ungetbyte are similar to + that known from stdios getc, ungetc. +*/ YAZ_EXPORT int cql_parser_stream(CQL_parser cp, int (*getbyte)(void *client_data), void (*ungetbyte)(int b, void *client_data), void *client_data); -/** - * Parses a CQL query from a FILE handle. - * - * This function is similar to cql_parser_string but reads from - * stdio FILE handle instead. - * - * Returns 0 if on success; non-zero (error code) on failure. - */ +/** \brief parses CQL query (from FILE) + \param cp CQL parser + \param f file where query is read from + \retval 0 success + \retval !=0 failure + + This function is similar to cql_parser_string but reads from + stdio FILE handle instead. +*/ YAZ_EXPORT int cql_parser_stdio(CQL_parser cp, FILE *f); -/** - * The node in a CQL parse tree. - */ +/** \brief Node type: search term */ #define CQL_NODE_ST 1 +/** \brief Node type: boolean */ #define CQL_NODE_BOOL 2 +/** \brief CQL parse tree (node) + */ struct cql_node { /** node type */ int which; @@ -129,13 +136,11 @@ struct cql_node { } u; }; -/** - * Private structure that describes the CQL properties (profile) +/** \brief Private structure that describes the CQL properties (profile) */ struct cql_properties; -/** - * Structure used by cql_buf_write_handlre +/** \brief Structure used by cql_buf_write_handler */ struct cql_buf_write_info { int max; @@ -143,173 +148,187 @@ struct cql_buf_write_info { char *buf; }; -/** - * Handler for cql_buf_write_info * +/** \brief Handler for cql_buf_write_info */ YAZ_EXPORT -void cql_buf_write_handler (const char *b, void *client_data); +void cql_buf_write_handler(const char *b, void *client_data); -/** - * Prints a CQL node and all sub nodes. Hence this function - * prints the parse tree which is as returned by cql_parser_result. - */ +/** \brief Prints a CQL node and all sub nodes. + Hence this function prints the parse tree which is as returned by + cql_parser_result. +*/ YAZ_EXPORT void cql_node_print(struct cql_node *cn); -/** - * This function creates a search clause node (st). - */ +/** \brief creates a search clause node (st). */ YAZ_EXPORT struct cql_node *cql_node_mk_sc(NMEM nmem, const char *index, const char *relation, const char *term); -/** - * This function applies a prefix+uri to "unresolved" index and relation - * URIs. - * - * "unresolved" URIs are those nodes where member index_uri / relation_uri - * is NULL. - */ +/** \brief applies a prefix+uri to "unresolved" index and relation URIs. + "unresolved" URIs are those nodes where member index_uri / relation_uri + is NULL. +*/ YAZ_EXPORT struct cql_node *cql_apply_prefix(NMEM nmem, struct cql_node *cn, const char *prefix, const char *uri); -/** - * This function creates a boolean node. - */ +/** \brief creates a boolean node. */ YAZ_EXPORT struct cql_node *cql_node_mk_boolean(NMEM nmem, const char *op); -/** - * Destroys a node and its children. - */ +/** \brief destroys a node and its children. */ YAZ_EXPORT void cql_node_destroy(struct cql_node *cn); -/** - * Duplicate a node (returns a copy of supplied node) . - */ +/** duplicates a node (returns a copy of supplied node) . */ YAZ_EXPORT struct cql_node *cql_node_dup (NMEM nmem, struct cql_node *cp); -/** - * This function returns the parse tree of the most recently parsed - * CQL query. - * - * The function returns NULL if most recently parse failed. - */ +/** \brief returns the parse tree of the most recently parsed CQL query. + \param cp CQL parser + \returns CQL node or NULL for failure +*/ YAZ_EXPORT struct cql_node *cql_parser_result(CQL_parser cp); -/** - * This function converts a CQL node tree to XCQL and writes the - * resulting XCQL to a user-defined output stream. +/** \brief converts CQL tree to XCQL and writes to user-defined stream + \param cn CQL node (tree) + \param pr print function + \param client_data data to be passed to pr function */ YAZ_EXPORT void cql_to_xml(struct cql_node *cn, void (*pr)(const char *buf, void *client_data), void *client_data); -/** - * This function converts a CQL node tree to XCQL and writes the - * resulting XCQL to a FILE handle (stdio) +/** \brief converts CQL tree to XCQL and writes to file + \param cn CQL node (tree) + \param f file handle */ YAZ_EXPORT void cql_to_xml_stdio(struct cql_node *cn, FILE *f); -/** - * This function converts a CQL node tree to XCQL and writes - * the resulting XCQL to a buffer +/** \brief converts CQL tree to XCQL and writes result to buffer + \param cn CQL node (tree) + \param out buffer + \param max size of buffer (max chars to write) + \returns length of resulting buffer */ YAZ_EXPORT int cql_to_xml_buf(struct cql_node *cn, char *out, int max); -/** - * Utility function that prints to a FILE. - */ +/** \brief stream handle for file (used by cql_to_xml_stdio) */ YAZ_EXPORT void cql_fputs(const char *buf, void *client_data); -/** - * The CQL transform handle. The transform describes how to - * convert from CQL to PQF (Type-1 AKA RPN). - */ +/** \brief CQL transform handle. + The transform describes how to convert from CQL to PQF (Type-1 AKA RPN). +*/ typedef struct cql_transform_t_ *cql_transform_t; -/** - * Creates a CQL transform handle. The transformation spec is read from - * a FILE handle (which is assumed opened in read mode). - */ +/** \brief creates a CQL transform handle from am opened file handle + \param f file where transformation spec is read + \returns transform handle or NULL for failure + + The transformation spec is read from a FILE handle which is assumed + opened for reading. +*/ YAZ_EXPORT cql_transform_t cql_transform_open_FILE (FILE *f); -/** - * Creates a CQL transform handle. The transformation spec is read from - * a file with the filename given. - */ +/** \brief creates a CQL transform handle from a file + \param fname name of where transformation spec is read + \returns transform handle or NULL for failure +*/ YAZ_EXPORT cql_transform_t cql_transform_open_fname(const char *fname); -/** - * Destroys a CQL transform handle. +/** \brief destroys a CQL transform handle + \param ct CQL transform handle */ YAZ_EXPORT void cql_transform_close(cql_transform_t ct); -/** - * Performs a CQL transform to PQF given a CQL node tree and a CQL - * transformation handle. The result is written to a user-defined stream. - */ +/** \brief tranforms PQF given a CQL tree + \param ct CQL transform handle + \param cn CQL node tree + \param pr print function + \param client_data data to be passed to pr + \retval 0 success + \retval != 0 error + + The result is written to a user-defined stream. +*/ YAZ_EXPORT int cql_transform(cql_transform_t ct, struct cql_node *cn, void (*pr)(const char *buf, void *client_data), void *client_data); -/** - * Performs a CQL transform to PQF given a CQL node tree and a CQL - * transformation handle. The result is written to a file specified by - * FILE handle (which must be opened for writing). - */ +/** \brief transforms PQF given a CQL tree (from FILE) + \param ct CQL transform handle + \param cn CQL tree + \param f FILE where output is written + \retval 0 success + \retval !=0 failure (error code) + + The result is written to a file specified by FILE handle (which must + be opened for writing. +*/ YAZ_EXPORT int cql_transform_FILE(cql_transform_t ct, struct cql_node *cn, FILE *f); -/** - * Performs a CQL transform to PQF given a CQL node tree and a CQL - * transformation handle. The result is written to a buffer. +/** \brief transforms PQF given a CQL tree (from FILE) + \param ct CQL transform handle + \param cn CQL tree + \param out buffer for output + \param max maximum bytes for output (size of buffer) + \retval 0 success + \retval !=0 failure (error code) */ YAZ_EXPORT int cql_transform_buf(cql_transform_t ct, struct cql_node *cn, char *out, int max); -/** - * Returns error code and additional information from last transformation. - * Performs a CQL transform given a CQL node tree and a CQL transformation. + +/** \brief returns additional information for last transform + \param ct CQL transform handle + \param addinfo additional info (result) + \returns error code */ YAZ_EXPORT int cql_transform_error(cql_transform_t ct, const char **addinfo); -/** - * Returns the CQL message corresponding to a given error code. - */ +/** \brief returns the CQL message corresponding to a given error code. + \param code error code + \returns text message +*/ YAZ_EXPORT const char *cql_strerror(int code); -/** - * Returns the standard CQL context set URI. - */ +/** \brief returns the standard CQL context set URI. + \returns CQL URI string +*/ YAZ_EXPORT const char *cql_uri(void); -/** - * Compares two CQL strings (for relations, operators, etc) - * (unfortunately defined as case-insensitive unlike XML etc) - */ +/** \brief compares two CQL strings (ala strcmp) + \param s1 string 1 + \param s2 string 2 + \returns comparison value + Compares two CQL strings (for relations, operators, etc) + (unfortunately defined as case-insensitive unlike XML etc) +*/ YAZ_EXPORT int cql_strcmp(const char *s1, const char *s2); -/** - * Compares two CQL strings at most n bytes - * (unfortunately defined as case-insensitive unlike XML etc) +/** \brief compares two CQL strings (ala strncmp) + \param s1 string 1 + \param s2 string 2 + \param n size + \returns comparison value + Compares two CQL strings at most n bytes + (unfortunately defined as case-insensitive unlike XML etc) */ YAZ_EXPORT int cql_strncmp(const char *s1, const char *s2, size_t n); diff --git a/include/yaz/nmem.h b/include/yaz/nmem.h index 6bffb6a..d63bd27 100644 --- a/include/yaz/nmem.h +++ b/include/yaz/nmem.h @@ -24,14 +24,14 @@ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/* $Id: nmem.h,v 1.25 2007-04-17 20:26:18 adam Exp $ */ +/* $Id: nmem.h,v 1.26 2007-11-14 21:03:59 adam Exp $ */ /** - * \file nmem.h + * \file * \brief Header for Nibble Memory functions * * This is a simple and fairly wasteful little module for nibble memory - * allocation. Evemtually we'll put in something better. + * allocation. Eventually we'll put in something better. */ #ifndef NMEM_H #define NMEM_H @@ -44,17 +44,36 @@ YAZ_BEGIN_CDECL /** \brief NMEM handle (an opaque pointer to memory) */ typedef struct nmem_control *NMEM; -/** \brief release all memory associaged with an NMEM handle */ +/** \brief releases memory associaged with an NMEM handle + \param n NMEM handle +*/ YAZ_EXPORT void nmem_reset(NMEM n); -/** \brief returns size in bytes of memory for NMEM handle */ + +/** \brief returns size in bytes of memory for NMEM handle + \returns number of bytes + */ YAZ_EXPORT int nmem_total(NMEM n); -/** \brief allocates string on NMEM handle (similar strdup) */ -YAZ_EXPORT char *nmem_strdup (NMEM mem, const char *src); -/** \brief allocates string on NMEM handle - allows NULL ptr buffer */ -YAZ_EXPORT char *nmem_strdup_null (NMEM mem, const char *src); -/** \brief allocates string of certain size on NMEM handle */ -YAZ_EXPORT char *nmem_strdupn (NMEM mem, const char *src, size_t n); +/** \brief allocates string on NMEM handle (similar strdup) + \param mem HNEM handle + \param src string + \returns duplicated string + */ +YAZ_EXPORT char *nmem_strdup(NMEM mem, const char *src); +/** \brief allocates string on NMEM handle - allows NULL ptr buffer + \param mem HNEM handle + \param src string + \returns duplicated string or NULL if src was NULL + */ +YAZ_EXPORT char *nmem_strdup_null(NMEM mem, const char *src); + +/** \brief allocates string of certain size on NMEM handle + \param mem NMEM handle + \param src string + \param n size of string + \returns duplicated string (0 terminated) + */ +YAZ_EXPORT char *nmem_strdupn(NMEM mem, const char *src, size_t n); /** \brief allocates sub strings out of string using certain delimitors \param nmem NMEM handle @@ -76,22 +95,37 @@ YAZ_EXPORT void nmem_strsplit(NMEM nmem, const char *delim, YAZ_EXPORT void nmem_strsplit_blank(NMEM nmem, const char *dstr, char ***darray, int *num); -/** \brief creates and allocates integer for NMEM */ -YAZ_EXPORT int *nmem_intdup (NMEM mem, int v); +/** \brief allocates integer for NMEM + \param nmem NMEM handle + \param v integer value + \returns pointer to created integer +*/ +YAZ_EXPORT int *nmem_intdup(NMEM nmem, int v); -/** \brief transfers memory from one NMEM handle to another */ -YAZ_EXPORT void nmem_transfer (NMEM dst, NMEM src); +/** \brief transfers memory from one NMEM handle to another + \param src source NMEM handle + \param dst destination NMEM handle + */ +YAZ_EXPORT void nmem_transfer(NMEM dst, NMEM src); -/** \brief returns new NMEM handle */ +/** \brief returns new NMEM handle + \returns NMEM handle + */ YAZ_EXPORT NMEM nmem_create(void); -/** \brief destroys NMEM handle and memory associated with it */ +/** \brief destroys NMEM handle and memory associated with it + \param n NMEM handle + */ YAZ_EXPORT void nmem_destroy(NMEM n); -/** \brief allocate memory block on NMEM handle */ +/** \brief allocates memory block on NMEM handle + \param n NMEM handle + \param size number of bytes to be allocated + \returns pointer to allocated memory + */ YAZ_EXPORT void *nmem_malloc(NMEM n, int size); -YAZ_EXPORT int yaz_errno (void); +YAZ_EXPORT int yaz_errno(void); YAZ_EXPORT void yaz_set_errno (int v); YAZ_EXPORT void yaz_strerror(char *buf, int max);