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	sub.c - sub - subscene.com subtitle search
	git clone git://git.codemadness.org/sub
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	---
	sub.c (3649B)
	---
	1 #include <sys/types.h>
	2
	3 #include <ctype.h>
	4 #include <errno.h>
	5 #include <stdio.h>
	6 #include <stdlib.h>
	7 #include <string.h>
	8 #include <strings.h>
	9 #ifdef __OpenBSD__
	10 #include <unistd.h>
	11 #else
	12 #define pledge(a,b) 0
	13 #endif
	14
	15 #include "util.h"
	16 #include "xml.h"
	17
	18 struct sub {
	19 int issub;
	20 char title[256];
	21 char lang[256];
	22 int hi;
	23 int files;
	24 char author[256];
	25 char authorurl[256];
	26 char description[256];
	27 char url[4096];
	28 };
	29
	30 static XMLParser parser; /* XML parser state */
	31 static struct sub sub;
	32 static char curclass[64];
	33 static char spanclass[64];
	34
	35 static int
	36 istag(const char s1, const char s2)
	37 {
	38 return !strcasecmp(s1, s2);
	39 }
	40
	41 static int
	42 isattr(const char s1, const char s2)
	43 {
	44 return !strcasecmp(s1, s2);
	45 }
	46
	47 static void
	48 xml_handler_data(XMLParser p, const char data, size_t datalen)
	49 {
	50 char *s = "";
	51 char buf[1024];
	52 size_t len;
	53
	54 if (!curclass[0])
	55 return;
	56
	57 /* skip leading space */
	58 for (s = (char )data; s && isspace((unsigned char)*s); s++)
	59 ;
	60 strlcpy(buf, s, sizeof(buf));
	61 for (s = buf; *s; s++) {
	62 if (s == '\r' \|\| s == '\n')
	63 *s = ' ';
	64 }
	65 /* trim remaining space */
	66 len = strlen(buf);
	67 for (; len > 0; len--) {
	68 if (!isspace((unsigned char)buf[len - 1]))
	69 break;
	70 buf[len - 1] = '\0';
	71 }
	72
	73 s = buf;
	74 if (!*s)
	75 return;
	76 if (strcmp(curclass, "a1") == 0) {
	77 /* link */
	78 if (strcmp(spanclass, "") == 0)
	79 strlcpy(sub.title, s, sizeof(sub.title));
	80 else
	81 strlcpy(sub.lang, s, sizeof(sub.lang));
	82 } else if (strcmp(curclass, "a3") == 0) {
	83 /* files */
	84 sub.files = atoi(s);
	85 } else if (strcmp(curclass, "a41") == 0) {
	86 /* hearing impaired? */
	87 sub.hi = 1;
	88 } else if (strcmp(curclass, "a5") == 0) {
	89 /* author / user profile */
	90 strlcpy(sub.author, s, sizeof(sub.author));
	91 } else if (strcmp(curclass, "a6") == 0) {
	92 /* description */
	93 strlcpy(sub.description, s, sizeof(sub.description));
	94 }
	95 }
	96
	97 static void
	98 xml_handler_start_element(XMLParser p, const char tag, size_t taglen)
	99 {
	100 (void)p;
	101 (void)taglen;
	102
	103 if (istag(tag, "tr"))
	104 memset(&sub, 0, sizeof(sub));
	105 }
	106
	107 static void
	108 xml_handler_end_element(XMLParser p, const char tag, size_t taglen,
	109 int isshort)
	110 {
	111 (void)p;
	112 (void)taglen;
	113 (void)isshort;
	114
	115 if (istag(tag, "tr") && sub.issub == 1) {
	116 printf("LANG:%s\tTITLE:%s\tURL:https://subscene.com%s\tH…
	117 sub.lang, sub.title, sub.url, sub.hi, sub.files, …
	118 } else if (istag(tag, "td")) {
	119 curclass[0] = '\0';
	120 } else if (istag(tag, "span")) {
	121 spanclass[0] = '\0';
	122 }
	123 }
	124
	125 static void
	126 xml_handler_attr(XMLParser p, const char tag, size_t taglen,
	127 const char name, size_t namelen, const char value, size_t valu…
	128 {
	129 (void)p;
	130 (void)taglen;
	131 (void)namelen;
	132 (void)valuelen;
	133
	134 if (istag(tag, "td")) {
	135 if (isattr(name, "class")) {
	136 strlcpy(curclass, value, sizeof(curclass));
	137 /* link */
	138 if (strcmp(value, "a1") == 0)
	139 sub.issub = 1;
	140 }
	141 } else if (istag(tag, "span")) {
	142 if (strcmp(curclass, "a1") == 0) {
	143 if (isattr(name, "class"))
	144 strlcpy(spanclass, value, sizeof(spancla…
	145 }
	146 } else if (istag(tag, "a")) {
	147 /* subtitle / author profile url */
	148 if (strcmp(name, "href") == 0) {
	149 if ((strcmp(curclass, "a1") == 0))
	150 strlcpy(sub.url, value, sizeof(sub.url));
	151 else if ((strcmp(curclass, "a5") == 0))
	152 strlcpy(sub.authorurl, value, sizeof(sub…
	153 }
	154 }
	155 }
	156
	157 int
	158 main(void)
	159 {
	160 if (pledge("stdio", NULL) < 0) {
	161 fprintf(stderr, "pledge: %s\n", strerror(errno));
	162 return 1;
	163 }
	164
	165 parser.xmltagstart = xml_handler_start_element;
	166 parser.xmltagend = xml_handler_end_element;
	167 parser.xmlattr = xml_handler_attr;
	168 parser.xmldata = xml_handler_data;
	169
	170 parser.getnext = getchar;
	171
	172 xml_parse(&parser);
	173
	174 return 0;
	175 }