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# debugXML

## Name

debugXML --

## Synopsis

    void        xmlDebugDumpString              (FILE *output,
                                                 const xmlChar *str);
    void        xmlDebugDumpAttr                (FILE *output,
                                                 xmlAttrPtr attr,
                                                 int depth);
    void        xmlDebugDumpAttrList            (FILE *output,
                                                 xmlAttrPtr attr,
                                                 int depth);
    void        xmlDebugDumpOneNode             (FILE *output,
                                                 xmlNodePtr node,
                                                 int depth);
    void        xmlDebugDumpNode                (FILE *output,
                                                 xmlNodePtr node,
                                                 int depth);
    void        xmlDebugDumpNodeList            (FILE *output,
                                                 xmlNodePtr node,
                                                 int depth);
    void        xmlDebugDumpDocumentHead        (FILE *output,
                                                 xmlDocPtr doc);
    void        xmlDebugDumpDocument            (FILE *output,
                                                 xmlDocPtr doc);
    void        xmlDebugDumpDTD                 (FILE *output,
                                                 xmlDtdPtr dtd);
    void        xmlDebugDumpEntities            (FILE *output,
                                                 xmlDocPtr doc);
    void        xmlLsOneNode                    (FILE *output,
                                                 xmlNodePtr node);
    int         xmlLsCountNode                  (xmlNodePtr node);
    char*       (*xmlShellReadlineFunc)         (char *prompt);
    struct      xmlShellCtxt;
    typedef     xmlShellCtxtPtr;
    int         (*xmlShellCmd)                  (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);
    void        xmlShellPrintXPathError         (int errorType,
                                                 const char *arg);
    void        xmlShellPrintNode               (xmlNodePtr node);
    void        xmlShellPrintXPathResult        (xmlXPathObjectPtr list);
    int         xmlShellList                    (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);
    int         xmlShellBase                    (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);
    int         xmlShellDir                     (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);
    int         xmlShellCat                     (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);
    int         xmlShellLoad                    (xmlShellCtxtPtr ctxt,
                                                 char *filename,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);
    int         xmlShellWrite                   (xmlShellCtxtPtr ctxt,
                                                 char *filename,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);
    int         xmlShellSave                    (xmlShellCtxtPtr ctxt,
                                                 char *filename,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);
    int         xmlShellValidate                (xmlShellCtxtPtr ctxt,
                                                 char *dtd,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);
    int         xmlShellDu                      (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr tree,
                                                 xmlNodePtr node2);
    int         xmlShellPwd                     (xmlShellCtxtPtr ctxt,
                                                 char *buffer,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);
    void        xmlShell                        (xmlDocPtr doc,
                                                 char *filename,
                                                 xmlShellReadlineFunc input,
                                                 FILE *output);

## Description

## Details

### xmlDebugDumpString ()

    void        xmlDebugDumpString              (FILE *output,
                                                 const xmlChar *str);

Dumps informations about the string, shorten it if necessary

`output` : | the FILE * for the output
`str` : | the string

### xmlDebugDumpAttr ()

    void        xmlDebugDumpAttr                (FILE *output,
                                                 xmlAttrPtr attr,
                                                 int depth);

Dumps debug information for the attribute

`output` : | the FILE * for the output
`attr` : | the attribute
`depth` : | the indentation level.

### xmlDebugDumpAttrList ()

    void        xmlDebugDumpAttrList            (FILE *output,
                                                 xmlAttrPtr attr,
                                                 int depth);

Dumps debug information for the attribute list

`output` : | the FILE * for the output
`attr` : | the attribute list
`depth` : | the indentation level.

### xmlDebugDumpOneNode ()

    void        xmlDebugDumpOneNode             (FILE *output,
                                                 xmlNodePtr node,
                                                 int depth);

Dumps debug information for the element node, it is not recursive

`output` : | the FILE * for the output
`node` : | the node
`depth` : | the indentation level.

### xmlDebugDumpNode ()

    void        xmlDebugDumpNode                (FILE *output,
                                                 xmlNodePtr node,
                                                 int depth);

Dumps debug information for the element node, it is recursive

`output` : | the FILE * for the output
`node` : | the node
`depth` : | the indentation level.

### xmlDebugDumpNodeList ()

    void        xmlDebugDumpNodeList            (FILE *output,
                                                 xmlNodePtr node,
                                                 int depth);

Dumps debug information for the list of element node, it is recursive

`output` : | the FILE * for the output
`node` : | the node list
`depth` : | the indentation level.

### xmlDebugDumpDocumentHead ()

    void        xmlDebugDumpDocumentHead        (FILE *output,
                                                 xmlDocPtr doc);

Dumps debug information cncerning the document, not recursive

`output` : | the FILE * for the output
`doc` : | the document

### xmlDebugDumpDocument ()

    void        xmlDebugDumpDocument            (FILE *output,
                                                 xmlDocPtr doc);

Dumps debug information for the document, it's recursive

`output` : | the FILE * for the output
`doc` : | the document

### xmlDebugDumpDTD ()

    void        xmlDebugDumpDTD                 (FILE *output,
                                                 xmlDtdPtr dtd);

Dumps debug information for the DTD

`output` : | the FILE * for the output
`dtd` : | the DTD

### xmlDebugDumpEntities ()

    void        xmlDebugDumpEntities            (FILE *output,
                                                 xmlDocPtr doc);

Dumps debug information for all the entities in use by the document

`output` : | the FILE * for the output
`doc` : | the document

### xmlLsOneNode ()

    void        xmlLsOneNode                    (FILE *output,
                                                 xmlNodePtr node);

Dump to `output` the type and name of `node`.

`output` : | the FILE * for the output
`node` : | the node to dump

### xmlLsCountNode ()

    int         xmlLsCountNode                  (xmlNodePtr node);

Count the children of `node`.

`node` : | the node to count
Returns : | the number of children of `node`.

### xmlShellReadlineFunc ()

    char*       (*xmlShellReadlineFunc)         (char *prompt);

This is a generic signature for the XML shell input function.

`prompt` : | a string prompt
Returns : | a string which will be freed by the Shell.

### struct xmlShellCtxt

    struct xmlShellCtxt {
        char *filename;
        xmlDocPtr doc;
        xmlNodePtr node;
        xmlXPathContextPtr pctxt;
        int loaded;
        FILE *output;
        xmlShellReadlineFunc input;
    };

A debugging shell context. TODO: add the defined function tables.

### xmlShellCtxtPtr

    typedef xmlShellCtxt *xmlShellCtxtPtr;

### xmlShellCmd ()

    int         (*xmlShellCmd)                  (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);

This is a generic signature for the XML shell functions.

`ctxt` : | a shell context
`arg` : | a string argument
`node` : | a first node
`node2` : | a second node
Returns : | an int, negative returns indicating errors.

### xmlShellPrintXPathError ()

    void        xmlShellPrintXPathError         (int errorType,
                                                 const char *arg);

Print the xpath error to libxml default error channel

`errorType` : | valid xpath error id
`arg` : | the argument that cause xpath to fail

### xmlShellPrintNode ()

    void        xmlShellPrintNode               (xmlNodePtr node);

Print node to the output FILE

`node` : | a non-null node to print to the output FILE

### xmlShellPrintXPathResult ()

    void        xmlShellPrintXPathResult        (xmlXPathObjectPtr list);

Prints result to the output FILE

`list` : | a valid result generated by an xpath evaluation

### xmlShellList ()

    int         xmlShellList                    (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);

Implements the XML shell function "ls" Does an Unix like listing of the given node (like a directory)

`ctxt` : | the shell context
`arg` : | unused
`node` : | a node
`node2` : | unused
Returns : | 0

### xmlShellBase ()

    int         xmlShellBase                    (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);

Implements the XML shell function "base" dumps the current XML base of the node

`ctxt` : | the shell context
`arg` : | unused
`node` : | a node
`node2` : | unused
Returns : | 0

### xmlShellDir ()

    int         xmlShellDir                     (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);

Implements the XML shell function "dir" dumps informations about the node (namespace, attributes, content).

`ctxt` : | the shell context
`arg` : | unused
`node` : | a node
`node2` : | unused
Returns : | 0

### xmlShellCat ()

    int         xmlShellCat                     (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);

Implements the XML shell function "cat" dumps the serialization node content (XML or HTML).

`ctxt` : | the shell context
`arg` : | unused
`node` : | a node
`node2` : | unused
Returns : | 0

### xmlShellLoad ()

    int         xmlShellLoad                    (xmlShellCtxtPtr ctxt,
                                                 char *filename,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);

Implements the XML shell function "load" loads a new document specified by the filename

`ctxt` : | the shell context
`filename` : | the file name
`node` : | unused
`node2` : | unused
Returns : | 0 or -1 if loading failed

### xmlShellWrite ()

    int         xmlShellWrite                   (xmlShellCtxtPtr ctxt,
                                                 char *filename,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);

Implements the XML shell function "write" Write the current node to the filename, it saves the serialization of the subtree under the `node` specified

`ctxt` : | the shell context
`filename` : | the file name
`node` : | a node in the tree
`node2` : | unused
Returns : | 0 or -1 in case of error

### xmlShellSave ()

    int         xmlShellSave                    (xmlShellCtxtPtr ctxt,
                                                 char *filename,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);

Implements the XML shell function "save" Write the current document to the filename, or it's original name

`ctxt` : | the shell context
`filename` : | the file name (optional)
`node` : | unused
`node2` : | unused
Returns : | 0 or -1 in case of error

### xmlShellValidate ()

    int         xmlShellValidate                (xmlShellCtxtPtr ctxt,
                                                 char *dtd,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);

Implements the XML shell function "validate" Validate the document, if a DTD path is provided, then the validation is done against the given DTD.

`ctxt` : | the shell context
`dtd` : | the DTD URI (optional)
`node` : | unused
`node2` : | unused
Returns : | 0 or -1 in case of error

### xmlShellDu ()

    int         xmlShellDu                      (xmlShellCtxtPtr ctxt,
                                                 char *arg,
                                                 xmlNodePtr tree,
                                                 xmlNodePtr node2);

Implements the XML shell function "du" show the structure of the subtree under node `tree` If `tree` is null, the command works on the current node.

`ctxt` : | the shell context
`arg` : | unused
`tree` : | a node defining a subtree
`node2` : | unused
Returns : | 0 or -1 in case of error

### xmlShellPwd ()

    int         xmlShellPwd                     (xmlShellCtxtPtr ctxt,
                                                 char *buffer,
                                                 xmlNodePtr node,
                                                 xmlNodePtr node2);

Implements the XML shell function "pwd" Show the full path from the root to the node, if needed building thumblers when similar elements exists at a given ancestor level. The output is compatible with XPath commands.

`ctxt` : | the shell context
`buffer` : | the output buffer
`node` : | a node
`node2` : | unused
Returns : | 0 or -1 in case of error

### xmlShell ()

    void        xmlShell                        (xmlDocPtr doc,
                                                 char *filename,
                                                 xmlShellReadlineFunc input,
                                                 FILE *output);

Implements the XML shell This allow to load, validate, view, modify and save a document using a environment similar to a UNIX commandline.

`doc` : | the initial document
`filename` : | the output buffer
`input` : | the line reading function
`output` : | the output FILE*, defaults to stdout if NULL

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