more XML to JSON
This commit is contained in:
Olof Hagsand
parent
831ab1be30
commit
7062a75fd7
2 changed files with 90 additions and 86 deletions
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@ -164,42 +164,44 @@ array_eval(cxobj *xprev,
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* @param[out] cb Cligen text buffer containing json on exit
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* @param[in] x XML tree structure containing XML to translate
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* @param[in] arraytype Does x occur in a array (of its parent) and how?
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* @param[in] level Indentation level
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* @param[in] pretty Pretty-print output (2 means debug)
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* @param[in] level Indentation level
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* @param[in] pretty Pretty-print output (2 means debug)
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* @param[in] flat Dont print NO_ARRAY object name (for _vec call)
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*
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* The following matrix explains how the mapping is done.
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* You need to understand what arraytype means (no/first/middle/last)
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* and what childtype is (null,body,any)
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+---------+--------------+--------------+--------------+
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|array,leaf| null | body | any |
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+---------+--------------+--------------+--------------+
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|no | <a/> |<a>1</a> |<a><b/></a> |
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| | | | |
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| json: |\ta:null |\ta: |\ta:{\n |
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| | | |\n} |
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+---------+--------------+--------------+--------------+
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|first |<a/><a.. |<a>1</a><a.. |<a><b/></a><a.|
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| | | | |
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| json: |\ta:[\n\tnull |\ta:[\n\t |\ta:[\n\t{\n |
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| | | |\n\t} |
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+---------+--------------+--------------+--------------+
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|middle |..a><a/><a.. |.a><a>1</a><a.| |
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| | | | |
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| json: |\tnull |\t |\t{a |
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| | | |\n\t} |
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+---------+--------------+--------------+--------------+
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|last |..a></a> |..a><a>1</a> | |
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| | | | |
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| json: |\tnull |\t |\t{a |
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| |\n\t] |\n\t] |\n\t}\t] |
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+---------+--------------+--------------+--------------+
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+---------+--------------+--------------+--------------+
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|array,leaf| null | body | any |
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+---------+--------------+--------------+--------------+
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|no | <a/> |<a>1</a> |<a><b/></a> |
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| | | | |
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| json: |\ta:null |\ta: |\ta:{\n |
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| | | |\n} |
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+---------+--------------+--------------+--------------+
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|first |<a/><a.. |<a>1</a><a.. |<a><b/></a><a.|
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| | | | |
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| json: |\ta:[\n\tnull |\ta:[\n\t |\ta:[\n\t{\n |
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| | | |\n\t} |
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+---------+--------------+--------------+--------------+
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|middle |..a><a/><a.. |.a><a>1</a><a.| |
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| | | | |
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| json: |\tnull |\t |\t{a |
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| | | |\n\t} |
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+---------+--------------+--------------+--------------+
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|last |..a></a> |..a><a>1</a> | |
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| | | | |
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| json: |\tnull |\t |\t{a |
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| |\n\t] |\n\t] |\n\t}\t] |
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+---------+--------------+--------------+--------------+
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*/
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static int
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xml2json1_cbuf(cbuf *cb,
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cxobj *x,
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enum array_element_type arraytype,
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int level,
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int pretty)
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int pretty,
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int flat)
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{
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int retval = -1;
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int i;
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@ -217,9 +219,10 @@ xml2json1_cbuf(cbuf *cb,
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cprintf(cb, "\"%s\"", xml_value(x));
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break;
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case NO_ARRAY:
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cprintf(cb, "%*s\"%s\": ",
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pretty?(level*JSON_INDENT):0, "",
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xml_name(x));
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if (!flat)
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cprintf(cb, "%*s\"%s\": ",
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pretty?(level*JSON_INDENT):0, "",
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xml_name(x));
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switch (childt){
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case NULL_CHILD:
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cprintf(cb, "null");
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@ -284,7 +287,7 @@ xml2json1_cbuf(cbuf *cb,
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if (xml2json1_cbuf(cb,
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xc,
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xc_arraytype,
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level+1, pretty) < 0)
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level+1, pretty,0) < 0)
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goto done;
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if (i<xml_child_nr(x)-1)
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cprintf(cb, ",%s", pretty?"\n":"");
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@ -376,26 +379,36 @@ xml2json_cbuf(cbuf *cb,
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int retval = 1;
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int level = 0;
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if (pretty)
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cprintf(cb, "%*s{\n", level*JSON_INDENT,"");
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else
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cprintf(cb, "{");
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cprintf(cb, "%*s{%s",
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pretty?level*JSON_INDENT:0,"",
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pretty?"\n":"");
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if (xml2json1_cbuf(cb,
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x,
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NO_ARRAY,
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level+1, pretty) < 0)
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level+1, pretty,0) < 0)
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goto done;
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if (pretty)
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cprintf(cb, "\n%*s}\n", level*JSON_INDENT,"");
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else
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cprintf(cb, "}");
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cprintf(cb, "%s%*s}%s",
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pretty?"\n":"",
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pretty?level*JSON_INDENT:0,"",
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pretty?"\n":"");
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retval = 0;
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done:
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return retval;
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}
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/*! Translate a vectro of xml objects to xml by adding a top pseudo-object.
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* example: <b/><c/> --> <a><b/><c/></a> --> {"a" : {"b" : null,"c" : null}}
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/*! Translate a vector of xml objects to JSON CLigen buffer.
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* This is done by adding a top pseudo-object, and add the vector as subs,
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* and then not pritning the top pseudo-.object using the 'flat' option.
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* @param[out] cb Cligen buffer to write to
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* @param[in] vec Vector of xml objecst
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* @param[in] veclen Length of vector
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* @param[in] pretty Set if output is pretty-printed (2 for debug)
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* @retval 0 OK
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* @retval -1 Error
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* @note This only works if the vector is uniform, ie same object name.
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* Example: <b/><c/> --> <a><b/><c/></a> --> {"b" : null,"c" : null}
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* @see xml2json1_cbuf
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*/
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int
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xml2json_cbuf_vec(cbuf *cb,
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@ -406,64 +419,42 @@ xml2json_cbuf_vec(cbuf *cb,
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int retval = -1;
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int level = 0;
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int i;
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cxobj *xp = NULL;
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cxobj *xc;
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enum array_element_type arraytype;
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#ifdef VEC_ARRAY
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cprintf(cb, "[%s", pretty?"\n":" ");
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level++;
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#else /* pseudo object */
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/* Note: We add a pseudo-object on top of the vector.
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* This object is array_element_type == NO_ARRAY in xml2json1_cbuf
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* and child_type == ANY_CHILD
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*/
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cprintf(cb, "{%s",
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pretty?"\n":" ");
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level++;
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cprintf(cb, "%*s\"top\": ", /* NO_ARRAY */
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pretty?(level*JSON_INDENT):0, "");
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cprintf(cb, "{%s", pretty?"\n":""); /* ANY_CHILD */
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#endif
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if ((xp = xml_new("", NULL)) == NULL)
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goto done;
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for (i=0; i<veclen; i++){
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xc = vec[i];
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arraytype = array_eval(i?vec[i-1]:NULL,
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xc,
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i<veclen-1?vec[i+1]:NULL);
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if (xml2json1_cbuf(cb,
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xc,
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arraytype,
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level, pretty) < 0)
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goto done;
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if (i<veclen-1){
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cprintf(cb, ",");
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if (pretty)
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cprintf(cb, "\n");
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}
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xc = xml_dup(vec[i]);
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xml_addsub(xp, xc);
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}
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level--;
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#ifdef VEC_ARRAY
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cprintf(cb, "%s]%s",
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if (0){
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cprintf(cb, "[%s", pretty?"\n":" ");
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level++;
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}
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if (xml2json1_cbuf(cb,
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xp,
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NO_ARRAY,
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level+1, pretty,1) < 0)
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goto done;
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if (0){
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level--;
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cprintf(cb, "%s]%s",
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pretty?"\n":"",
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pretty?"\n":""); /* top object */
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#else /* pseudo object */
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cprintf(cb, "%s%*s}",
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pretty?"\n":"",
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pretty?(level*JSON_INDENT):0, "");
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cprintf(cb, "%s}%s",
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pretty?"\n":"",
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pretty?"\n":""); /* top object */
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#endif
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}
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retval = 0;
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done:
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if (xp)
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xml_free(xp);
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return retval;
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}
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/*! Translate from xml tree to JSON and print to file
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* @param[in] f File to print to
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* @param[in] x XML tree to translate from
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* @param[in] pretty Set if output is pretty-printed
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* @param[in] top By default only children are printed, set if include top
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* @retval 0 OK
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* @retval -1 Error
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*
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@ -474,7 +465,7 @@ xml2json_cbuf_vec(cbuf *cb,
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*/
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int
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xml2json(FILE *f,
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cxobj *x,
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cxobj *x,
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int pretty)
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{
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int retval = 1;
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@ -494,6 +485,19 @@ xml2json(FILE *f,
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return retval;
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}
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/*! Translate a vector of xml objects to JSON File.
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* This is done by adding a top pseudo-object, and add the vector as subs,
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* and then not pritning the top pseudo-.object using the 'flat' option.
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* @param[out] cb Cligen buffer to write to
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* @param[in] vec Vector of xml objecst
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* @param[in] veclen Length of vector
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* @param[in] pretty Set if output is pretty-printed (2 for debug)
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* @retval 0 OK
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* @retval -1 Error
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* @note This only works if the vector is uniform, ie same object name.
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* Example: <b/><c/> --> <a><b/><c/></a> --> {"b" : null,"c" : null}
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* @see xml2json1_cbuf
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*/
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int
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xml2json_vec(FILE *f,
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cxobj **vec,
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@ -519,7 +519,7 @@ xml_find(cxobj *x_up,
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return NULL;
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}
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/*! Add xc as child to xp. Remove xc from previous parent.
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/*! Append xc as child to xp. Remove xc from previous parent.
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* @param[in] xp Parent xml node
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* @param[in] xc Child xml node to insert under xp
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* @retval 0 OK
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