sfeed

simple feed reader - forked from git.codemadness.org/sfeed
git clone git://src.gearsix.net/sfeed
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util.h (2224B)


      1 #include <stdio.h>
      2 #include <time.h>
      3 
      4 #ifdef __OpenBSD__
      5 #include <unistd.h>
      6 #else
      7 #define pledge(p1,p2) 0
      8 #define unveil(p1,p2) 0
      9 #endif
     10 
     11 /* ctype-like macros, but always compatible with ASCII / UTF-8 */
     12 #define ISALPHA(c) ((((unsigned)c) | 32) - 'a' < 26)
     13 #define ISCNTRL(c) ((c) < ' ' || (c) == 0x7f)
     14 #define ISDIGIT(c) (((unsigned)c) - '0' < 10)
     15 #define ISSPACE(c) ((c) == ' ' || ((((unsigned)c) - '\t') < 5))
     16 #define TOLOWER(c) ((((unsigned)c) - 'A' < 26) ? ((c) | 32) : (c))
     17 
     18 #undef strcasestr
     19 char *strcasestr(const char *, const char *);
     20 #undef strlcat
     21 size_t strlcat(char *, const char *, size_t);
     22 #undef strlcpy
     23 size_t strlcpy(char *, const char *, size_t);
     24 
     25 #ifndef SFEED_DUMBTERM
     26 #define PAD_TRUNCATE_SYMBOL    "\xe2\x80\xa6" /* symbol: "ellipsis" */
     27 #define UTF_INVALID_SYMBOL     "\xef\xbf\xbd" /* symbol: "replacement" */
     28 #else
     29 #define PAD_TRUNCATE_SYMBOL    "."
     30 #define UTF_INVALID_SYMBOL     "?"
     31 #endif
     32 
     33 /* feed info */
     34 struct feed {
     35 	char         *name;     /* feed name */
     36 	unsigned long totalnew; /* amount of new items per feed */
     37 	unsigned long total;    /* total items */
     38 	/* sfeed_curses */
     39 	char         *path;     /* path to feed or NULL for stdin */
     40 	FILE         *fp;       /* file pointer */
     41 };
     42 
     43 /* URI */
     44 struct uri {
     45 	char proto[48];     /* scheme including ":" or "://" */
     46 	char userinfo[256]; /* username [:password] */
     47 	char host[256];
     48 	char port[6];       /* numeric port */
     49 	char path[1024];
     50 	char query[1024];
     51 	char fragment[1024];
     52 };
     53 
     54 enum {
     55 	FieldUnixTimestamp = 0, FieldTitle, FieldLink, FieldContent,
     56 	FieldContentType, FieldId, FieldAuthor, FieldEnclosure, FieldCategory,
     57 	FieldLast
     58 };
     59 
     60 /* hint for compilers and static analyzers that a function exits */
     61 #ifndef __dead
     62 #define __dead
     63 #endif
     64 
     65 __dead void err(int, const char *, ...);
     66 __dead void errx(int, const char *, ...);
     67 
     68 int uri_format(char *, size_t, struct uri *);
     69 int uri_hasscheme(const char *);
     70 int uri_makeabs(struct uri *, struct uri *, struct uri *);
     71 int uri_parse(const char *, struct uri *);
     72 
     73 void checkfileerror(FILE *, const char *, int);
     74 void parseline(char *, char *[FieldLast]);
     75 void printutf8pad(FILE *, const char *, size_t, int);
     76 int  strtotime(const char *, time_t *);
     77 void xmlencode(const char *, FILE *);