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Make the xslt style sheet finding search a set of possible paths

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This allows us to install the xslt files in multiple places.  Right now
the path defaults to the subsurface xslt install directory, the relative
directory "xslt" and the current working directory.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2011-11-05 13:51:37 -07:00
parent 350462949d
commit 6fa702bcbd
1 changed files with 49 additions and 1 deletions
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50
parse-xml.c
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@ -3,6 +3,7 @@
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#define __USE_XOPEN
#include <time.h>
#include <libxml/parser.h>
@ -1484,6 +1485,53 @@ void parse_xml_init(void)
}
#ifdef XSLT
/* Maybe we'll want a environment variable that can override this.. */
static const char *xslt_path = XSLT ":xslt:.";
static xsltStylesheetPtr try_get_stylesheet(const char *path, int len, const char *name)
{
xsltStylesheetPtr ret;
int namelen = strlen(name);
char *filename = malloc(len+1+namelen+1);
if (!filename)
return NULL;
memcpy(filename, path, len);
filename[len] = G_DIR_SEPARATOR;
memcpy(filename + len + 1, name, namelen+1);
ret = NULL;
if (!access(filename, R_OK))
ret = xsltParseStylesheetFile(filename);
free(filename);
return ret;
}
static xsltStylesheetPtr get_stylesheet(const char *name)
{
const char *path = xslt_path, *next;
do {
int len;
xsltStylesheetPtr ret;
next = strchr(path, ':');
len = strlen(path);
if (next) {
len = next - path;
next++;
}
ret = try_get_stylesheet(path, len, name);
if (ret)
return ret;
} while ((path = next) != NULL);
return NULL;
}
xmlDoc *test_xslt_transforms(xmlDoc *doc)
{
xmlDoc *transformed;
@ -1491,7 +1539,7 @@ xmlDoc *test_xslt_transforms(xmlDoc *doc)
xmlNode *root_element = xmlDocGetRootElement(doc);
if (strcasecmp(root_element->name, "JDiveLog") == 0) {
xmlSubstituteEntitiesDefault(1);
xslt = xsltParseStylesheetFile(XSLT G_DIR_SEPARATOR_S "jdivelog2subsurface.xslt");
xslt = get_stylesheet("jdivelog2subsurface.xslt");
if (xslt == NULL)
return doc;
transformed = xsltApplyStylesheet(xslt, doc, NULL);