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third_party/libxml/src/example/gjobread.c

Index: third_party/libxml/src/example/gjobread.c
diff --git a/third_party/libxml/src/example/gjobread.c b/third_party/libxml/src/example/gjobread.c
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+/*
+ * gjobread.c : a small test program for gnome jobs XML format
+ *
+ * See Copyright for the status of this software.
+ *
+ * Daniel.Veillard@w3.org
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+/*
+ * This example should compile and run indifferently with libxml-1.8.8 +
+ * and libxml2-2.1.0 +
+ * Check the COMPAT comments below
+ */
+
+/*
+ * COMPAT using xml-config --cflags to get the include path this will
+ * work with both 
+ */
+#include <libxml/xmlmemory.h>
+#include <libxml/parser.h>
+
+#define DEBUG(x) printf(x)
+
+/*
+ * A person record
+ * an xmlChar * is really an UTF8 encoded char string (0 terminated)
+ */
+typedef struct person {
+    xmlChar *name;
+    xmlChar *email;
+    xmlChar *company;
+    xmlChar *organisation;
+    xmlChar *smail;
+    xmlChar *webPage;
+    xmlChar *phone;
+} person, *personPtr;
+
+/*
+ * And the code needed to parse it
+ */
+static personPtr
+parsePerson(xmlDocPtr doc, xmlNsPtr ns, xmlNodePtr cur) {
+    personPtr ret = NULL;
+
+DEBUG("parsePerson\n");
+    /*
+     * allocate the struct
+     */
+    ret = (personPtr) malloc(sizeof(person));
+    if (ret == NULL) {
+        fprintf(stderr,"out of memory\n");
+	return(NULL);
+    }
+    memset(ret, 0, sizeof(person));
+
+    /* We don't care what the top level element name is */
+    /* COMPAT xmlChildrenNode is a macro unifying libxml1 and libxml2 names */
+    cur = cur->xmlChildrenNode;
+    while (cur != NULL) {
+        if ((!xmlStrcmp(cur->name, (const xmlChar *)"Person")) &&
+	    (cur->ns == ns))
+	    ret->name = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
+        if ((!xmlStrcmp(cur->name, (const xmlChar *)"Email")) &&
+	    (cur->ns == ns))
+	    ret->email = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
+	cur = cur->next;
+    }
+
+    return(ret);
+}
+
+/*
+ * and to print it
+ */
+static void
+printPerson(personPtr cur) {
+    if (cur == NULL) return;
+    printf("------ Person\n");
+    if (cur->name) printf("	name: %s\n", cur->name);
+    if (cur->email) printf("	email: %s\n", cur->email);
+    if (cur->company) printf("	company: %s\n", cur->company);
+    if (cur->organisation) printf("	organisation: %s\n", cur->organisation);
+    if (cur->smail) printf("	smail: %s\n", cur->smail);
+    if (cur->webPage) printf("	Web: %s\n", cur->webPage);
+    if (cur->phone) printf("	phone: %s\n", cur->phone);
+    printf("------\n");
+}
+
+/*
+ * a Description for a Job
+ */
+typedef struct job {
+    xmlChar *projectID;
+    xmlChar *application;
+    xmlChar *category;
+    personPtr contact;
+    int nbDevelopers;
+    personPtr developers[100]; /* using dynamic alloc is left as an exercise */
+} job, *jobPtr;
+
+/*
+ * And the code needed to parse it
+ */
+static jobPtr
+parseJob(xmlDocPtr doc, xmlNsPtr ns, xmlNodePtr cur) {
+    jobPtr ret = NULL;
+
+DEBUG("parseJob\n");
+    /*
+     * allocate the struct
+     */
+    ret = (jobPtr) malloc(sizeof(job));
+    if (ret == NULL) {
+        fprintf(stderr,"out of memory\n");
+	return(NULL);
+    }
+    memset(ret, 0, sizeof(job));
+
+    /* We don't care what the top level element name is */
+    cur = cur->xmlChildrenNode;
+    while (cur != NULL) {
+        
+        if ((!xmlStrcmp(cur->name, (const xmlChar *) "Project")) &&
+	    (cur->ns == ns)) {
+	    ret->projectID = xmlGetProp(cur, (const xmlChar *) "ID");
+	    if (ret->projectID == NULL) {
+		fprintf(stderr, "Project has no ID\n");
+	    }
+	}
+        if ((!xmlStrcmp(cur->name, (const xmlChar *) "Application")) &&
+            (cur->ns == ns))
+	    ret->application = 
+		xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
+        if ((!xmlStrcmp(cur->name, (const xmlChar *) "Category")) &&
+	    (cur->ns == ns))
+	    ret->category =
+		xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
+        if ((!xmlStrcmp(cur->name, (const xmlChar *) "Contact")) &&
+	    (cur->ns == ns))
+	    ret->contact = parsePerson(doc, ns, cur);
+	cur = cur->next;
+    }
+
+    return(ret);
+}
+
+/*
+ * and to print it
+ */
+static void
+printJob(jobPtr cur) {
+    int i;
+
+    if (cur == NULL) return;
+    printf("=======  Job\n");
+    if (cur->projectID != NULL) printf("projectID: %s\n", cur->projectID);
+    if (cur->application != NULL) printf("application: %s\n", cur->application);
+    if (cur->category != NULL) printf("category: %s\n", cur->category);
+    if (cur->contact != NULL) printPerson(cur->contact);
+    printf("%d developers\n", cur->nbDevelopers);
+
+    for (i = 0;i < cur->nbDevelopers;i++) printPerson(cur->developers[i]);
+    printf("======= \n");
+}
+
+/*
+ * A pool of Gnome Jobs
+ */
+typedef struct gjob {
+    int nbJobs;
+    jobPtr jobs[500]; /* using dynamic alloc is left as an exercise */
+} gJob, *gJobPtr;
+
+
+static gJobPtr
+parseGjobFile(char *filename) {
+    xmlDocPtr doc;
+    gJobPtr ret;
+    jobPtr curjob;
+    xmlNsPtr ns;
+    xmlNodePtr cur;
+
+#ifdef LIBXML_SAX1_ENABLED
+    /*
+     * build an XML tree from a the file;
+     */
+    doc = xmlParseFile(filename);
+    if (doc == NULL) return(NULL);
+#else
+    /*
+     * the library has been compiled without some of the old interfaces
+     */
+    return(NULL);
+#endif /* LIBXML_SAX1_ENABLED */
+
+    /*
+     * Check the document is of the right kind
+     */
+    
+    cur = xmlDocGetRootElement(doc);
+    if (cur == NULL) {
+        fprintf(stderr,"empty document\n");
+	xmlFreeDoc(doc);
+	return(NULL);
+    }
+    ns = xmlSearchNsByHref(doc, cur,
+	    (const xmlChar *) "http://www.gnome.org/some-location");
+    if (ns == NULL) {
+        fprintf(stderr,
+	        "document of the wrong type, GJob Namespace not found\n");
+	xmlFreeDoc(doc);
+	return(NULL);
+    }
+    if (xmlStrcmp(cur->name, (const xmlChar *) "Helping")) {
+        fprintf(stderr,"document of the wrong type, root node != Helping");
+	xmlFreeDoc(doc);
+	return(NULL);
+    }
+
+    /*
+     * Allocate the structure to be returned.
+     */
+    ret = (gJobPtr) malloc(sizeof(gJob));
+    if (ret == NULL) {
+        fprintf(stderr,"out of memory\n");
+	xmlFreeDoc(doc);
+	return(NULL);
+    }
+    memset(ret, 0, sizeof(gJob));
+
+    /*
+     * Now, walk the tree.
+     */
+    /* First level we expect just Jobs */
+    cur = cur->xmlChildrenNode;
+    while ( cur && xmlIsBlankNode ( cur ) ) {
+	cur = cur -> next;
+    }
+    if ( cur == 0 ) {
+	xmlFreeDoc(doc);
+	free(ret);
+	return ( NULL );
+    }
+    if ((xmlStrcmp(cur->name, (const xmlChar *) "Jobs")) || (cur->ns != ns)) {
+        fprintf(stderr,"document of the wrong type, was '%s', Jobs expected",
+		cur->name);
+	fprintf(stderr,"xmlDocDump follows\n");
+#ifdef LIBXML_OUTPUT_ENABLED
+	xmlDocDump ( stderr, doc );
+	fprintf(stderr,"xmlDocDump finished\n");
+#endif /* LIBXML_OUTPUT_ENABLED */
+	xmlFreeDoc(doc);
+	free(ret);
+	return(NULL);
+    }
+
+    /* Second level is a list of Job, but be laxist */
+    cur = cur->xmlChildrenNode;
+    while (cur != NULL) {
+        if ((!xmlStrcmp(cur->name, (const xmlChar *) "Job")) &&
+	    (cur->ns == ns)) {
+	    curjob = parseJob(doc, ns, cur);
+	    if (curjob != NULL)
+	        ret->jobs[ret->nbJobs++] = curjob;
+            if (ret->nbJobs >= 500) break;
+	}
+	cur = cur->next;
+    }
+
+    return(ret);
+}
+
+static void
+handleGjob(gJobPtr cur) {
+    int i;
+
+    /*
+     * Do whatever you want and free the structure.
+     */
+    printf("%d Jobs registered\n", cur->nbJobs);
+    for (i = 0; i < cur->nbJobs; i++) printJob(cur->jobs[i]);
+}
+
+int main(int argc, char **argv) {
+    int i;
+    gJobPtr cur;
+
+    /* COMPAT: Do not genrate nodes for formatting spaces */
+    LIBXML_TEST_VERSION
+    xmlKeepBlanksDefault(0);
+
+    for (i = 1; i < argc ; i++) {
+	cur = parseGjobFile(argv[i]);
+	if ( cur )
+	  handleGjob(cur);
+	else
+	  fprintf( stderr, "Error parsing file '%s'\n", argv[i]);
+
+    }
+
+    /* Clean up everything else before quitting. */
+    xmlCleanupParser();
+
+    return(0);
+}