Rename sfeed_opml_config to sfeed_opml_import

Because I'm adding a sfeed_opml_export script.

Signed-off-by: Hiltjo Posthuma <hiltjo@codemadness.org>

1 files changed, 89 insertions, 0 deletions

diff --git a/sfeed_opml_import.c b/sfeed_opml_import.c
new file mode 100644
index 0000000..f328fc1
--- /dev/null
+++ b/sfeed_opml_import.c
@@ -0,0 +1,89 @@
+/* convert an opml file to sfeedrc file */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <expat.h> /* libexpat */
+
+XML_Parser parser; /* expat XML parser state */
+
+char * /* search for attr value by attr name in attributes list */
+getattrvalue(const char **atts, const char *name) {
+	const char **attr = NULL, *key, *value;
+	if(!atts || !(*atts))
+		return NULL;
+	for(attr = atts; *attr; ) {
+		key = *(attr++);
+		value = *(attr++);
+		if(key && value && !strcasecmp(key, name))
+			return (char *)value;
+	}
+	return NULL;
+}
+
+void XMLCALL
+xml_handler_start_element(void *data, const char *name, const char **atts) {
+	char *feedurl = NULL, *feedname = NULL, *basesiteurl = NULL;
+
+	if(!strcasecmp(name, "outline")) {
+		if(!(feedname = getattrvalue(atts, "text")) &&
+		   !(feedname = getattrvalue(atts, "title")))
+			feedname = "unnamed";
+		if(!(basesiteurl = getattrvalue(atts, "htmlurl")))
+			basesiteurl = "";
+		if(!(feedurl = getattrvalue(atts, "xmlurl")))
+			feedurl = "";
+		printf("\tfeed \"%s\" \"%s\" \"%s\"\n", feedname, feedurl, basesiteurl);
+	}
+}
+
+void XMLCALL
+xml_handler_end_element(void *data, const char *name) {
+}
+
+int /* parse XML from stream using setup parser, return 1 on success, 0 on failure. */
+xml_parse_stream(XML_Parser parser, FILE *fp) {
+	char buffer[BUFSIZ];
+	int done = 0, len = 0;
+
+	while(!feof(fp)) {
+		len = fread(buffer, 1, sizeof(buffer), fp);
+		done = (feof(fp) || ferror(fp));
+		if(XML_Parse(parser, buffer, len, done) == XML_STATUS_ERROR && (len > 0)) {
+			if(XML_GetErrorCode(parser) == XML_ERROR_NO_ELEMENTS)
+				return 1; /* Ignore "no elements found" / empty document as an error */
+			fprintf(stderr, "sfeed_opml_config: error parsing xml %s at line %lu column %lu\n",
+			        XML_ErrorString(XML_GetErrorCode(parser)), (unsigned long)XML_GetCurrentLineNumber(parser),
+			        (unsigned long)XML_GetCurrentColumnNumber(parser));
+			return 0;
+		}
+	} while(!done);
+	return 1;
+}
+
+int main(void) {
+	int status;
+
+	if(!(parser = XML_ParserCreate("UTF-8"))) {
+		fputs("sfeed_opml_config: can't create parser", stderr);
+		exit(EXIT_FAILURE);
+	}
+	XML_SetElementHandler(parser, xml_handler_start_element, xml_handler_end_element);
+
+	fputs(
+		"# paths\n"
+		"# NOTE: make sure to uncomment all these if you change it.\n"
+		"#sfeedpath=\"$HOME/.sfeed\"\n"
+		"#sfeedfile=\"$sfeedpath/feeds\"\n"
+		"#sfeedfilenew=\"$sfeedfile.new\"\n"
+		"\n"
+		"# list of feeds to fetch:\n"
+		"feeds() {\n"
+		"	# feed <name> <url> [encoding]\n", stdout);
+	status = xml_parse_stream(parser, stdin);
+	fputs("}\n", stdout);
+
+	XML_ParserFree(parser);
+
+	return status ? EXIT_SUCCESS : EXIT_FAILURE;
+}