MINI_XML 函数文档

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Library Reference

Contents

Functions

mxmlAdd

Add a node to a tree.

void mxmlAdd (
mxml_node_t*parent,
int where,
mxml_node_t*child,
mxml_node_t*node
);

Parameters

parent
Parent node
where
Where to add,MXML_ADD_BEFORE or MXML_ADD_AFTER
child
Child node for where or MXML_ADD_TO_PARENT
node
Node to add

Discussion

Adds the specified node to the parent. If the child argument is not NULL,puts the new node before or after the specified child depending on the value of the where argument. If the child argument is NULL,puts the new node at the beginning of the child list (MXML_ADD_BEFORE) or at the end of the child list (MXML_ADD_AFTER). The constant MXML_ADD_TO_PARENT can be used to specify a NULL child pointer.

mxmlDelete

Delete a node and all of its children.

void mxmlDelete (
mxml_node_t*node
);

node
Node to delete

If the specified node has a parent,this function first removes the node from its parent using the mxmlRemove() function.

Mini-XML 2.4mxmlElementDeleteAttr

Delete an attribute.

void mxmlElementDeleteAttr (
mxml_node_t*node,
const char *name
);

node
Element
name
Attribute name

mxmlElementGetAttr

Get an attribute.

const char *mxmlElementGetAttr (
mxml_node_t*node,sans-serif; font-size:14px">

node
Element node
name
Name of attribute

Return Value

Attribute value or NULL

This function returns NULL if the node is not an element or the named attribute does not exist.

mxmlElementSetAttr

Set an attribute.

void mxmlElementSetAttr (
mxml_node_t*node,
const char *name,
const char *value
);

node
Element node
name
Name of attribute
value
Attribute value

If the named attribute already exists,the value of the attribute is replaced by the new string value. The string value is copied into the element node. This function does nothing if the node is not an element.

Mini-XML 2.3mxmlElementSetAttrf

Set an attribute with a formatted value.

void mxmlElementSetAttrf (
mxml_node_t*node,
const char *format,
...
);

node
Element node
name
Name of attribute
format
Printf-style attribute value
...
Additional arguments as needed

mxmlEntityAddCallback

Add a callback to convert entities to Unicode.

int mxmlEntityAddCallback (
mxml_entity_cb_tcb
);

cb
Callback function to add

0 on success,-1 on failure

mxmlEntityGetName

Get the name that corresponds to the character value.

const char *mxmlEntityGetName (
int val
);

val
Character value

Entity name or NULL

If val does not need to be represented by a named entity,NULL is returned.

mxmlEntityGetValue

Get the character corresponding to a named entity.

int mxmlEntityGetValue (
const char *name
);

name
Entity name

Character value or -1 on error

The entity name can also be a numeric constant. -1 is returned if the name is not known.

mxmlEntityRemoveCallback

Remove a callback.

void mxmlEntityRemoveCallback (
mxml_entity_cb_tcb
);

cb
Callback function to remove

mxmlFindElement

Find the named element.

mxml_node_t*mxmlFindElement (
mxml_node_t*node,
mxml_node_t*top,
const char *attr,
const char *value,
int descend
);

node
Current node
top
Top node
name
Element name or NULL for any
attr
Attribute name,or NULL for none
value
Attribute value,or NULL for any
descend
Descend into tree - MXML_DESCEND,MXML_NO_DESCEND,or MXML_DESCEND_FIRST

Element node or NULL

The search is constrained by the name,attribute name,and value; any NULL names or values are treated as wildcards,so different kinds of searches can be implemented by looking for all elements of a given name or all elements with a specific attribute. The descend argument determines whether the search descends into child nodes; normally you will use MXML_DESCEND_FIRST for the initial search and MXML_NO_DESCEND to find additional direct descendents of the node. The top node argument constrains the search to a particular node's children.

Mini-XML 2.7mxmlFindPath

Find a node with the given path.

mxml_node_t*mxmlFindPath (
mxml_node_t*top,
const char *path
);

top
Top node
path
Path to element

Found node or NULL

The "path" is a slash-separated list of element names. The name "*" is considered a wildcard for one or more levels of elements. For example,"foo/one/two","bar/two/one","*/one",and so forth.

The first child node of the found node is returned if the given node has children and the first child is a value node.

Mini-XML 2.7mxmlGetCDATA

Get the value for a CDATA node.

const char *mxmlGetCDATA (
mxml_node_t*node
);

node
Node to get

CDATA value or NULL

@H_801_502@NULLis returned if the node is not a CDATA element.

Mini-XML 2.7mxmlGetCustom

Get the value for a custom node.

const void *mxmlGetCustom (
mxml_node_t*node
);

Custom value or NULL

NULLis returned if the node (or its first child) is not a custom value node.

Mini-XML 2.7mxmlGetElement

Get the name for an element node.

const char *mxmlGetElement (
mxml_node_t*node
);

Element name or NULL

NULLis returned if the node is not an element node.

Mini-XML 2.7mxmlGetFirstChild

Get the first child of an element node.

mxml_node_t*mxmlGetFirstChild (
mxml_node_t*node
);

First child or NULL

NULLis returned if the node is not an element node or if the node has no children.

Mini-XML 2.7mxmlGetInteger

Get the integer value from the specified node or its first child.

int mxmlGetInteger (
mxml_node_t*node
);

Integer value or 0

0 is returned if the node (or its first child) is not an integer value node.

Mini-XML 2.7mxmlGetLastChild

Get the last child of an element node.

mxml_node_t*mxmlGetLastChild (
mxml_node_t*node
);

Last child or NULL

mxmlGetNextSibling

Return the node type...

mxml_node_t*mxmlGetNextSibling (
mxml_node_t*node
);

Get the next node for the current parent.

NULLis returned if this is the last child for the current parent.

Mini-XML 2.7mxmlGetOpaque

Get an opaque string value for a node or its first child.

const char *mxmlGetOpaque (
mxml_node_t*node
);

Opaque string or NULL

NULLis returned if the node (or its first child) is not an opaque value node.

Mini-XML 2.7mxmlGetParent

Get the parent node.

mxml_node_t*mxmlGetParent (
mxml_node_t*node
);

Parent node or NULL

NULLis returned for a root node.

Mini-XML 2.7mxmlGetPrevSibling

Get the prevIoUs node for the current parent.

mxml_node_t*mxmlGetPrevSibling (
mxml_node_t*node
);

PrevIoUs node or NULL

NULLis returned if this is the first child for the current parent.

Mini-XML 2.7mxmlGetReal

Get the real value for a node or its first child.

double mxmlGetReal (
mxml_node_t*node
);

Real value or 0.0

0.0 is returned if the node (or its first child) is not a real value node.

Mini-XML 2.7mxmlGetRefCount

Get the current reference (use) count for a node.

int mxmlGetRefCount (
mxml_node_t*node
);

node
Node

Reference count

The initial reference count of new nodes is 1. Use themxmlRetainandmxmlReleasefunctions to increment and decrement a node's reference count. .

Mini-XML 2.7mxmlGetText

Get the text value for a node or its first child.

const char *mxmlGetText (
mxml_node_t*node,
int *whitespace
);

node
Node to get
whitespace
1 if string is preceded by whitespace,0 otherwise

Text string or NULL

NULLis returned if the node (or its first child) is not a text node. The "whitespace" argument can be NULL.

Mini-XML 2.7mxmlGetType

Get the node type.

mxml_type_tmxmlGetType (
mxml_node_t*node
);

Type of node

MXML_IGNOREis returned if "node" is@H_801_502@NULL.

Mini-XML 2.7mxmlGetUserData

Get the user data pointer for a node.

void *mxmlGetUserData (
mxml_node_t*node
);

User data pointer

mxmlIndexDelete

Delete an index.

void mxmlIndexDelete (
mxml_index_t*ind
);

ind
Index to delete

mxmlIndexEnum

Return the next node in the index.

mxml_node_t*mxmlIndexEnum (
mxml_index_t*ind
);

ind
Index to enumerate

Next node or NULL if there is none

Nodes are returned in the sorted order of the index.

mxmlIndexFind

Find the next matching node.

mxml_node_t*mxmlIndexFind (
mxml_index_t*ind,
const char *element,sans-serif; font-size:14px">

ind
Index to search
element
Element name to find,if any
value
Attribute value,if any

Node or NULL if none found

You should call mxmlIndexReset() prior to using this function for the first time with a particular set of "element" and "value" strings. Passing NULL for both "element" and "value" is equivalent to calling mxmlIndexEnum().

Mini-XML 2.7mxmlIndexGetCount

Get the number of nodes in an index.

int mxmlIndexGetCount (
mxml_index_t*ind
);

ind
Index of nodes

Number of nodes in index

mxmlIndexNew

Create a new index.

mxml_index_t*mxmlIndexNew (
mxml_node_t*node,
const char *attr
);

node
XML node tree
element
Element to index or NULL for all
attr
Attribute to index or NULL for none

New index

The index will contain all nodes that contain the named element and/or attribute. If both "element" and "attr" are NULL,then the index will contain a sorted list of the elements in the node tree. Nodes are sorted by element name and optionally by attribute value if the "attr" argument is not NULL.

mxmlIndexReset

Reset the enumeration/find pointer in the index and return the first node in the index.

mxml_node_t*mxmlIndexReset (
mxml_index_t*ind
);

ind
Index to reset

First node or NULL if there is none

This function should be called prior to using mxmlIndexEnum() or mxmlIndexFind() for the first time.

mxmlLoadFd

Load a file descriptor into an XML node tree.

mxml_node_t*mxmlLoadFd (
mxml_node_t*top,
int fd,
mxml_load_cb_tcb
);

top
Top node
fd
File descriptor to read from
cb
Callback function or MXML_NO_CALLBACK

First node or NULL if the file could not be read.

The nodes in the specified file are added to the specified top node. If no top node is provided,the XML file MUST be well-formed with a single parent node like <?xml> for the entire file. The callback function returns the value type that should be used for child nodes. If MXML_NO_CALLBACK is specified then all child nodes will be either MXML_ELEMENT or MXML_TEXT nodes.

The constants MXML_INTEGER_CALLBACK,MXML_OPAQUE_CALLBACK,MXML_REAL_CALLBACK,and MXML_TEXT_CALLBACK are defined for loading child nodes of the specified type.

mxmlLoadFile

Load a file into an XML node tree.

mxml_node_t*mxmlLoadFile (
mxml_node_t*top,
FILE *fp,sans-serif; font-size:14px">

top
Top node
fp
File to read from
cb
Callback function or MXML_NO_CALLBACK

mxmlLoadString

Load a string into an XML node tree.

mxml_node_t*mxmlLoadString (
mxml_node_t*top,
const char *s,sans-serif; font-size:14px">

top
Top node
s
String to load
cb
Callback function or MXML_NO_CALLBACK

First node or NULL if the string has errors.

The nodes in the specified string are added to the specified top node. If no top node is provided,the XML string MUST be well-formed with a single parent node like <?xml> for the entire string. The callback function returns the value type that should be used for child nodes. If MXML_NO_CALLBACK is specified then all child nodes will be either MXML_ELEMENT or MXML_TEXT nodes.

The constants MXML_INTEGER_CALLBACK,sans-serif; border-bottom-style:solid; border-bottom-width:2px; border-bottom-color:gray; margin-bottom:0.5em; font-size:24px; margin-top:1.5em"> Mini-XML 2.3mxmlNewCDATA

Create a new CDATA node.

mxml_node_t*mxmlNewCDATA (
mxml_node_t*parent,
const char *data
);

parent
Parent node or MXML_NO_PARENT
data
Data string

New node

The new CDATA node is added to the end of the specified parent's child list. The constant MXML_NO_PARENT can be used to specify that the new CDATA node has no parent. The data string must be nul-terminated and is copied into the new node. CDATA nodes use the MXML_ELEMENT type.

Mini-XML 2.1mxmlNewCustom

Create a new custom data node.

mxml_node_t*mxmlNewCustom (
mxml_node_t*parent,
void *data,
mxml_custom_destroy_cb_tdestroy
);

parent
Parent node or MXML_NO_PARENT
data
Pointer to data
destroy
Function to destroy data

The new custom node is added to the end of the specified parent's child list. The constant MXML_NO_PARENT can be used to specify that the new element node has no parent. NULL can be passed when the data in the node is not dynamically allocated or is separately managed.

mxmlNewElement

Create a new element node.

mxml_node_t*mxmlNewElement (
mxml_node_t*parent,sans-serif; font-size:14px">

parent
Parent node or MXML_NO_PARENT
name
Name of element

The new element node is added to the end of the specified parent's child list. The constant MXML_NO_PARENT can be used to specify that the new element node has no parent.

mxmlNewInteger

Create a new integer node.

mxml_node_t*mxmlNewInteger (
mxml_node_t*parent,
int integer
);

parent
Parent node or MXML_NO_PARENT
integer
Integer value

The new integer node is added to the end of the specified parent's child list. The constant MXML_NO_PARENT can be used to specify that the new integer node has no parent.

mxmlNewOpaque

Create a new opaque string.

mxml_node_t*mxmlNewOpaque (
mxml_node_t*parent,
const char *opaque
);

parent
Parent node or MXML_NO_PARENT
opaque
Opaque string

The new opaque node is added to the end of the specified parent's child list. The constant MXML_NO_PARENT can be used to specify that the new opaque node has no parent. The opaque string must be nul-terminated and is copied into the new node.

mxmlNewReal

Create a new real number node.

mxml_node_t*mxmlNewReal (
mxml_node_t*parent,
double real
);

parent
Parent node or MXML_NO_PARENT
real
Real number value

The new real number node is added to the end of the specified parent's child list. The constant MXML_NO_PARENT can be used to specify that the new real number node has no parent.

mxmlNewText

Create a new text fragment node.

mxml_node_t*mxmlNewText (
mxml_node_t*parent,
int whitespace,
const char *string
);

parent
Parent node or MXML_NO_PARENT
whitespace
1 = leading whitespace,0 = no whitespace
string
String

The new text node is added to the end of the specified parent's child list. The constant MXML_NO_PARENT can be used to specify that the new text node has no parent. The whitespace parameter is used to specify whether leading whitespace is present before the node. The text string must be nul-terminated and is copied into the new node.

mxmlNewTextf

Create a new formatted text fragment node.

mxml_node_t*mxmlNewTextf (
mxml_node_t*parent,0 = no whitespace

format
Printf-style frmat string
...
Additional args as needed

The new text node is added to the end of the specified parent's child list. The constant MXML_NO_PARENT can be used to specify that the new text node has no parent. The whitespace parameter is used to specify whether leading whitespace is present before the node. The format string must be nul-terminated and is formatted into the new node.

Mini-XML 2.3mxmlNewXML

Create a new XML document tree.

mxml_node_t*mxmlNewXML (
const char *version
);

version
Version number to use

New ?xml node

The "version" argument specifies the version number to put in the ?xml element node. If NULL,version 1.0 is assumed.

Mini-XML 2.3mxmlRelease

Release a node.

int mxmlRelease (
mxml_node_t*node
);

New reference count

When the reference count reaches zero,the node (and any children) is deleted via mxmlDelete().

mxmlRemove

Remove a node from its parent.

void mxmlRemove (
mxml_node_t*node
);

node
Node to remove

Does not free memory used by the node - use mxmlDelete() for that. This function does nothing if the node has no parent.

Mini-XML 2.3mxmlRetain

Retain a node.

int mxmlRetain (
mxml_node_t*node
);

New reference count

Mini-XML 2.3mxmlSAXLoadFd

Load a file descriptor into an XML node tree using a SAX callback.

mxml_node_t*mxmlSAXLoadFd (
mxml_node_t*top,
mxml_load_cb_tcb,
mxml_sax_cb_tsax_cb,
void *sax_data
);

top
Top node
fd
File descriptor to read from
cb
Callback function or MXML_NO_CALLBACK
sax_cb
SAX callback or MXML_NO_CALLBACK
sax_data
SAX user data

Mini-XML 2.3mxmlSAXLoadFile

Load a file into an XML node tree using a SAX callback.

mxml_node_t*mxmlSAXLoadFile (
mxml_node_t*top,sans-serif; font-size:14px">

top
Top node
fp
File to read from
cb
Callback function or MXML_NO_CALLBACK
sax_cb
SAX callback or MXML_NO_CALLBACK
sax_data
SAX user data

Mini-XML 2.3mxmlSAXLoadString

Load a string into an XML node tree using a SAX callback.

mxml_node_t*mxmlSAXLoadString (
mxml_node_t*top,sans-serif; font-size:14px">

top
Top node
s
String to load
cb
Callback function or MXML_NO_CALLBACK
sax_cb
SAX callback or MXML_NO_CALLBACK
sax_data
SAX user data

mxmlSaveAllocString

Save an XML tree to an allocated string.

char *mxmlSaveAllocString (
mxml_node_t*node,
mxml_save_cb_tcb
);

node
Node to write
cb
Whitespace callback or MXML_NO_CALLBACK

Allocated string or NULL

This function returns a pointer to a string containing the textual representation of the XML node tree. The string should be freed using the free() function when you are done with it. NULL is returned if the node would produce an empty string or if the string cannot be allocated.

The callback argument specifies a function that returns a whitespace string or NULL before and after each element. If MXML_NO_CALLBACK is specified,whitespace will only be added before MXML_TEXT nodes with leading whitespace and before attribute names inside opening element tags.

mxmlSaveFd

Save an XML tree to a file descriptor.

int mxmlSaveFd (
mxml_node_t*node,sans-serif; font-size:14px">

node
Node to write
fd
File descriptor to write to
cb
Whitespace callback or MXML_NO_CALLBACK

The callback argument specifies a function that returns a whitespace string or NULL before and after each element. If MXML_NO_CALLBACK is specified,sans-serif; border-bottom-style:solid; border-bottom-width:2px; border-bottom-color:gray; margin-bottom:0.5em; font-size:24px; margin-top:1.5em"> mxmlSaveFile

Save an XML tree to a file.

int mxmlSaveFile (
mxml_node_t*node,sans-serif; font-size:14px">

node
Node to write
fp
File to write to
cb
Whitespace callback or MXML_NO_CALLBACK

mxmlSaveString

Save an XML node tree to a string.

int mxmlSaveString (
mxml_node_t*node,
char *buffer,
int bufsize,sans-serif; font-size:14px">

node
Node to write
buffer
String buffer
bufsize
Size of string buffer
cb
Whitespace callback or MXML_NO_CALLBACK

Size of string

This function returns the total number of bytes that would be required for the string but only copies (bufsize - 1) characters into the specified buffer.

The callback argument specifies a function that returns a whitespace string or NULL before and after each element. If MXML_NO_CALLBACK is specified,sans-serif; border-bottom-style:solid; border-bottom-width:2px; border-bottom-color:gray; margin-bottom:0.5em; font-size:24px; margin-top:1.5em"> Mini-XML 2.3mxmlSetCDATA

Set the element name of a CDATA node.

int mxmlSetCDATA (
mxml_node_t*node,sans-serif; font-size:14px">

node
Node to set
data
New data string

The node is not changed if it (or its first child) is not a CDATA element node.

Mini-XML 2.1mxmlSetCustom

Set the data and destructor of a custom data node.

int mxmlSetCustom (
mxml_node_t*node,sans-serif; font-size:14px">

node
Node to set
data
New data pointer
destroy
New destructor function

The node is not changed if it (or its first child) is not a custom node.

mxmlSetCustomHandlers

Set the handling functions for custom data.

void mxmlSetCustomHandlers (
mxml_custom_load_cb_tload,
mxml_custom_save_cb_tsave
);

load
Load function
save
Save function

The load function accepts a node pointer and a data string and must return 0 on success and non-zero on error.

The save function accepts a node pointer and must return a malloc'd string on success and NULL on error.

mxmlSetElement

Set the name of an element node.

int mxmlSetElement (
mxml_node_t*node,sans-serif; font-size:14px">

node
Node to set
name
New name string

The node is not changed if it is not an element node.

mxmlSetErrorCallback

Set the error message callback.

void mxmlSetErrorCallback (
mxml_error_cb_tcb
);

cb
Error callback function

mxmlSetInteger

Set the value of an integer node.

int mxmlSetInteger (
mxml_node_t*node,sans-serif; font-size:14px">

node
Node to set
integer
Integer value

The node is not changed if it (or its first child) is not an integer node.

mxmlSetOpaque

Set the value of an opaque node.

int mxmlSetOpaque (
mxml_node_t*node,sans-serif; font-size:14px">

node
Node to set
opaque
Opaque string

The node is not changed if it (or its first child) is not an opaque node.

mxmlSetReal

Set the value of a real number node.

int mxmlSetReal (
mxml_node_t*node,sans-serif; font-size:14px">

node
Node to set
real
Real number value

The node is not changed if it (or its first child) is not a real number node.

mxmlSetText

Set the value of a text node.

int mxmlSetText (
mxml_node_t*node,sans-serif; font-size:14px">

node
Node to set
whitespace
1 = leading whitespace,sans-serif; font-size:14px"> The node is not changed if it (or its first child) is not a text node.

mxmlSetTextf

Set the value of a text node to a formatted string.

int mxmlSetTextf (
mxml_node_t*node,0 = no whitespace

format
Printf-style format string
...
Additional arguments as needed

Mini-XML 2.7mxmlSetUserData

Set the user data pointer for a node.

int mxmlSetUserData (
mxml_node_t*node,
void *data
);

node
Node to set
data
User data pointer

Mini-XML 2.3mxmlSetWrapMargin

Set the wrap margin when saving XML data.

void mxmlSetWrapMargin (
int column
);

column
Column for wrapping,0 to disable wrapping

Wrapping is disabled when "column" is 0.

mxmlWalkNext

Walk to the next logical node in the tree.

mxml_node_t*mxmlWalkNext (
mxml_node_t*node,sans-serif; font-size:14px">

node
Current node
top
Top node
descend
Descend into tree - MXML_DESCEND,sans-serif; margin-top:0.5em; font-size:14px"> Next node or NULL

The descend argument controls whether the first child is considered to be the next node. The top node argument constrains the walk to the node's children.

mxmlWalkPrev

Walk to the prevIoUs logical node in the tree.

mxml_node_t*mxmlWalkPrev (
mxml_node_t*node,sans-serif; font-size:14px"> The descend argument controls whether the prevIoUs node's last child is considered to be the prevIoUs node. The top node argument constrains the walk to the node's children.

Data Types

mxml_custom_destroy_cb_t

Custom data destructor

typedef void (*mxml_custom_destroy_cb_t)(void *);

mxml_custom_load_cb_t

Custom data load callback function

typedef int (*mxml_custom_load_cb_t)(mxml_node_t*,const char *);

mxml_custom_save_cb_t

Custom data save callback function

typedef char *(*mxml_custom_save_cb_t)(mxml_node_t*);

mxml_entity_cb_t

Entity callback function

typedef int (*mxml_entity_cb_t)(const char *);

mxml_error_cb_t

Error callback function

typedef void (*mxml_error_cb_t)(const char *);

mxml_index_t

An XML node index.

typedef structmxml_index_smxml_index_t;

mxml_load_cb_t

Load callback function

typedefmxml_type_t(*mxml_load_cb_t)(mxml_node_t*);

mxml_node_t

An XML node.

typedef structmxml_node_smxml_node_t;

mxml_save_cb_t

Save callback function

typedef const char *(*mxml_save_cb_t)(mxml_node_t*,int);

mxml_sax_cb_t

SAX callback function

typedef void (*mxml_sax_cb_t)(mxml_node_t*,mxml_sax_event_t,void *);

mxml_sax_event_t

SAX event type.

typedef enummxml_sax_event_emxml_sax_event_t;

mxml_type_t

The XML node type.

typedef enummxml_type_emxml_type_t;

Constants

mxml_sax_event_e

SAX event type.

Constants

MXML_SAX_CDATA
CDATA node
MXML_SAX_COMMENT
Comment node
MXML_SAX_DATA
Data node
MXML_SAX_DIRECTIVE
Processing directive node
MXML_SAX_ELEMENT_CLOSE
Element closed
MXML_SAX_ELEMENT_OPEN
Element opened

mxml_type_e

The XML node type.

MXML_CUSTOM Mini-XML 2.1
Custom data
MXML_ELEMENT
XML element with attributes
MXML_IGNORE Mini-XML 2.3
Ignore/throw away node
MXML_INTEGER
Integer value
MXML_OPAQUE
Opaque string
MXML_REAL
Real value
MXML_TEXT
Text fragment
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