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-rw-r--r--sfeed.c122
1 files changed, 68 insertions, 54 deletions
diff --git a/sfeed.c b/sfeed.c
index e659d5b..f911aa1 100644
--- a/sfeed.c
+++ b/sfeed.c
@@ -11,7 +11,14 @@
#include "util.h"
#include "xml.h"
-#define ISWSNOSPACE(c) (((unsigned)c - '\t') < 5) /* isspace(c) && c != ' ' */
+/* fast isspace(c) && c != ' ' check. */
+#define ISWSNOSPACE(c) (((unsigned)c - '\t') < 5)
+#define ISINCONTENT(ctx) ((ctx).iscontent && !((ctx).iscontenttag))
+#define ISCONTENTTAG(ctx) (!((ctx).iscontent) && (ctx).iscontenttag)
+/* string and size */
+#define STRP(s) s,sizeof(s)-1
+/* length of string */
+#define STRSIZ(s) (sizeof(s)-1)
enum { FeedTypeNone = 0, FeedTypeRSS = 1, FeedTypeAtom = 2 };
static const char *feedtypes[] = { "", "rss", "atom" };
@@ -106,28 +113,28 @@ gettag(int feedtype, const char *name, size_t namelen)
{
/* RSS, alphabetical order */
static FeedTag rsstag[] = {
- { "author", 6, RSSTagAuthor },
- { "content:encoded", 15, RSSTagContentencoded },
- { "dc:creator", 10, RSSTagDccreator },
- { "dc:date", 7, RSSTagDcdate },
- { "description", 11, RSSTagDescription },
- { "guid", 4, RSSTagGuid },
- { "link", 4, RSSTagLink },
- { "pubdate", 7, RSSTagPubdate },
- { "title", 5, RSSTagTitle },
- { NULL, 0, -1 }
+ { STRP("author"), RSSTagAuthor },
+ { STRP("content:encoded"), RSSTagContentencoded },
+ { STRP("dc:creator"), RSSTagDccreator },
+ { STRP("dc:date"), RSSTagDcdate },
+ { STRP("description"), RSSTagDescription },
+ { STRP("guid"), RSSTagGuid },
+ { STRP("link"), RSSTagLink },
+ { STRP("pubdate"), RSSTagPubdate },
+ { STRP("title"), RSSTagTitle },
+ { NULL, 0, -1 }
};
/* Atom, alphabetical order */
static FeedTag atomtag[] = {
- { "author", 6, AtomTagAuthor },
- { "content", 7, AtomTagContent },
- { "id", 2, AtomTagId },
- { "link", 4, AtomTagLink },
- { "published", 9, AtomTagPublished },
- { "summary", 7, AtomTagSummary },
- { "title", 5, AtomTagTitle },
- { "updated", 7, AtomTagUpdated },
- { NULL, 0, -1 }
+ { STRP("author"), AtomTagAuthor },
+ { STRP("content"), AtomTagContent },
+ { STRP("id"), AtomTagId },
+ { STRP("link"), AtomTagLink },
+ { STRP("published"), AtomTagPublished },
+ { STRP("summary"), AtomTagSummary },
+ { STRP("title"), AtomTagTitle },
+ { STRP("updated"), AtomTagUpdated },
+ { NULL, 0, -1 }
};
int i, n;
@@ -303,7 +310,7 @@ gettimetz(const char *s, char *buf, size_t bufsiz)
char c;
buf[0] = '\0';
- if(bufsiz < sizeof(tzname) + strlen(" -00:00"))
+ if(bufsiz < sizeof(tzname) + STRSIZ(" -00:00"))
return 0;
for(; *p && isspace((int)*p); p++); /* skip whitespace */
/* loop until some common timezone delimiters are found */
@@ -430,14 +437,15 @@ xml_handler_attr_start(XMLParser *p, const char *tag, size_t taglen,
(void)tag;
(void)taglen;
- if(ctx.iscontent && !ctx.iscontenttag) {
- if(!ctx.attrcount)
- xml_handler_data(p, " ", 1);
- ctx.attrcount++;
- xml_handler_data(p, name, namelen);
- xml_handler_data(p, "=\"", 2);
+ if(!ISINCONTENT(ctx))
return;
- }
+
+ /* handles transforming inline XML to data */
+ if(!ctx.attrcount)
+ xml_handler_data(p, " ", 1);
+ ctx.attrcount++;
+ xml_handler_data(p, name, namelen);
+ xml_handler_data(p, "=\"", 2);
}
static void
@@ -449,10 +457,12 @@ xml_handler_attr_end(struct xmlparser *p, const char *tag, size_t taglen,
(void)name;
(void)namelen;
- if(ctx.iscontent && !ctx.iscontenttag) {
- xml_handler_data(p, "\"", 1);
- ctx.attrcount = 0;
- }
+ if(!ISINCONTENT(ctx))
+ return;
+
+ /* handles transforming inline XML to data */
+ xml_handler_data(p, "\"", 1);
+ ctx.attrcount = 0;
}
static void
@@ -462,12 +472,13 @@ xml_handler_start_element_parsed(XMLParser *p, const char *tag, size_t taglen,
(void)tag;
(void)taglen;
- if(ctx.iscontent && !ctx.iscontenttag) {
- if(isshort)
- xml_handler_data(p, "/>", 2);
- else
- xml_handler_data(p, ">", 1);
- }
+ if(!ISINCONTENT(ctx))
+ return;
+
+ if(isshort)
+ xml_handler_data(p, "/>", 2);
+ else
+ xml_handler_data(p, ">", 1);
}
static void
@@ -478,18 +489,20 @@ xml_handler_attr(XMLParser *p, const char *tag, size_t taglen,
(void)tag;
(void)taglen;
- if(ctx.iscontent && !ctx.iscontenttag) {
+ /* handles transforming inline XML to data */
+ if(ISINCONTENT(ctx)) {
xml_handler_data(p, value, valuelen);
return;
}
+
if(ctx.item.feedtype == FeedTypeAtom) {
/*if(ctx.tagid == AtomTagContent || ctx.tagid == AtomTagSummary) {*/
- if(ctx.iscontenttag) {
- if(isattr(name, namelen, "type", strlen("type")) &&
- (isattr(value, valuelen, "xhtml", strlen("xhtml")) ||
- isattr(value, valuelen, "text/xhtml", strlen("text/xhtml")) ||
- isattr(value, valuelen, "html", strlen("html")) ||
- isattr(value, valuelen, "text/html", strlen("text/html"))))
+ if(ISCONTENTTAG(ctx)) {
+ if(isattr(name, namelen, STRP("type")) &&
+ (isattr(value, valuelen, STRP("xhtml")) ||
+ isattr(value, valuelen, STRP("text/xhtml")) ||
+ isattr(value, valuelen, STRP("html")) ||
+ isattr(value, valuelen, STRP("text/html"))))
{
ctx.item.contenttype = ContentTypeHTML;
ctx.iscontent = 1;
@@ -499,7 +512,7 @@ xml_handler_attr(XMLParser *p, const char *tag, size_t taglen,
p->xmltagstartparsed = xml_handler_start_element_parsed;
}
} else if(ctx.tagid == AtomTagLink &&
- isattr(name, namelen, "href", strlen("href")))
+ isattr(name, namelen, STRP("href")))
{
/* link href attribute */
string_append(&ctx.item.link, value, valuelen);
@@ -510,15 +523,16 @@ xml_handler_attr(XMLParser *p, const char *tag, size_t taglen,
static void
xml_handler_start_element(XMLParser *p, const char *name, size_t namelen)
{
- if(ctx.iscontenttag) {
+ if(ISCONTENTTAG(ctx)) {
/* starts with div, handle as XML, don't convert entities (set handle to NULL) */
if(ctx.item.feedtype == FeedTypeAtom &&
- namelen == strlen("div") &&
- !strncmp(name, "div", strlen("div"))) {
+ namelen == STRSIZ("div") &&
+ !strncmp(name, STRP("div"))) {
p->xmldataentity = NULL;
}
}
- if(ctx.iscontent) {
+ /* TODO: changed, iscontenttag can be 0 or 1 ? */
+ if(ISINCONTENT(ctx)) {
ctx.attrcount = 0;
ctx.iscontenttag = 0;
xml_handler_data(p, "<", 1);
@@ -531,11 +545,11 @@ xml_handler_start_element(XMLParser *p, const char *name, size_t namelen)
/* start of RSS or Atom item / entry */
if(ctx.item.feedtype == FeedTypeNone) {
- if(istag(name, namelen, "entry", strlen("entry"))) { /* Atom */
+ if(istag(name, namelen, STRP("entry"))) { /* Atom */
ctx.item.feedtype = FeedTypeAtom;
ctx.item.contenttype = ContentTypePlain; /* Default content type */
ctx.field = NULL; /* XXX: optimization */
- } else if(istag(name, namelen, "item", strlen("item"))) { /* RSS */
+ } else if(istag(name, namelen, STRP("item"))) { /* RSS */
ctx.item.feedtype = FeedTypeRSS;
ctx.item.contenttype = ContentTypeHTML; /* Default content type */
ctx.field = NULL; /* XXX: optimization */
@@ -646,9 +660,9 @@ xml_handler_end_element(XMLParser *p, const char *name, size_t namelen, int issh
/* end of RSS or Atom entry / item */
/* TODO: optimize, use gettag() ? to tagid? */
if((ctx.item.feedtype == FeedTypeAtom &&
- istag(name, namelen, "entry", strlen("entry"))) || /* Atom */
+ istag(name, namelen, STRP("entry"))) || /* Atom */
(ctx.item.feedtype == FeedTypeRSS &&
- istag(name, namelen, "item", strlen("item")))) /* RSS */
+ istag(name, namelen, STRP("item")))) /* RSS */
{
printf("%ld", (long)parsetime((&ctx.item.timestamp)->data,
timebuf, sizeof(timebuf)));
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 05:56:55 +0000