From ae0520e57267dbd866fc8cd25f66f4e6af2ac118 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Mon, 13 Jul 2020 15:59:30 +0200
Subject: Move c files into src directory

---
 rss.c | 176 ------------------------------------------------------------------
 1 file changed, 176 deletions(-)
 delete mode 100644 rss.c

(limited to 'rss.c')

diff --git a/rss.c b/rss.c
deleted file mode 100644
index fdb932c..0000000
--- a/rss.c
+++ /dev/null
@@ -1,176 +0,0 @@
-#include "rss.h"
-#include "download.h"
-#include "buffer.h"
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-static int is_alpha_lowercase(char c) {
-    return c >= 'a' && c <= 'z';
-}
-
-static int is_digit(char c) {
-    return c >= '0' && c <= '9';
-}
-
-static char* get_amp_end(char *str) {
-    for(;;) {
-        char c = *str;
-        if(is_alpha_lowercase(c) || is_digit(c) || c == '#')
-            ++str;
-        else if(c == ';' || c == '\0')
-            break;
-    }
-    return str;
-}
-
-static void xml_unescape(char *str, char *result, int result_length) {
-    int index = 0;
-    for(;;) {
-        char c = *str;
-        if(c == '&') {
-            char *amp_end = get_amp_end(str + 1);
-            char prev_char = *amp_end;
-            *amp_end = '\0';
-
-            if(str[1] == '#') {
-                result[index++] = atoi(str + 2);
-            } else {
-                if(strcmp(str + 1, "amp") == 0)
-                    result[index++] = '&';
-                else if(strcmp(str + 1, "lt") == 0)
-                    result[index++] = '<';
-                else if(strcmp(str + 1, "gt") == 0)
-                    result[index++] = '>';
-                else if(strcmp(str + 1, "apos") == 0)
-                    result[index++] = '\'';
-            }
-
-            *amp_end = prev_char;
-            str = amp_end;
-            if(prev_char != '\0')
-                ++str;
-        } else if(c == '\0') {
-            result[index] = '\0';
-            break;
-        } else {
-            result[index++] = c;
-            ++str;
-        }
-
-        if(index == result_length - 1) {
-            result[index] = '\0';
-            break;
-        }
-    }
-}
-
-static char* string_substr_before_tag_end(char *str, const char *tag) {
-    char *tag_p = strstr(str, tag);
-    if(tag_p)
-        *tag_p = '\0';
-    return tag_p;
-}
-
-typedef void (*RssParseCallback)(const char *title, const char *link, void *userdata);
-
-static int parse_rss(char *str, char *rss_title_str, int rss_title_str_size, RssParseCallback parse_callback, void *userdata) {
-    char *channel_start = strstr(str, "<channel>");
-    if(!channel_start)
-        return 1;
-
-    char *after_channel = channel_start + 9;
-
-    char *rss_title = strstr(after_channel, "<title>");
-    char *first_item = strstr(after_channel, "<item>");
-    if(!first_item) {
-        rss_title += 7;
-        string_substr_before_tag_end(rss_title, "</title>");
-        xml_unescape(rss_title, rss_title_str, rss_title_str_size);
-        return 0;
-    }
-
-    if(rss_title < first_item) {
-        rss_title += 7;
-        string_substr_before_tag_end(rss_title, "</title>");
-        xml_unescape(rss_title, rss_title_str, rss_title_str_size);
-    } else {
-        rss_title_str[0] = '\0';
-    }
-
-    char title_str[256];
-    char link_str[2084];
-
-    char *item = first_item;
-    for(;;) {
-        char *after_first_item = item + 6;
-        char *item_end = strstr(after_first_item, "</item>");
-        if(!item_end)
-            return 1;
-
-        char *item_title = strstr(after_first_item, "<title>");
-        if(!item_title)
-            return 1;
-
-        if(item_title >= item_end)
-            return 1;
-        
-        item_title += 7;
-        char *after_title = string_substr_before_tag_end(item_title, "</title>");
-        if(!after_title)
-            return 1;
-
-        after_title += 8;
-        char *item_link = strstr(after_title, "<link>");
-        if(!item_link)
-            return 1;
-
-        if(item_link >= item_end)
-            return 1;
-
-        item_link += 6;
-        string_substr_before_tag_end(item_link, "</link>");
-
-        xml_unescape(item_title, title_str, sizeof(title_str));
-        xml_unescape(item_link, link_str, sizeof(link_str));
-        parse_callback(title_str, link_str, userdata);
-
-        item = strstr(item_end + 7, "<item>");
-        if(!item)
-            return 0;
-    }
-}
-
-static void rss_parse_callback(const char *title, const char *link, void *userdata) {
-    (void)userdata;
-    fprintf(stderr, "title: |%s|, link: |%s|\n", title, link);
-}
-
-int add_rss(const char *name, const char *url, const char *rss_config_dir, const char *start_after) {
-    (void)name;
-    (void)rss_config_dir;
-    (void)start_after;
-    int result = 0;
-
-    Buffer buffer;
-    buffer_init(&buffer);
-    int res = download_to_buffer(url, &buffer);
-    if(res != 0) {
-        fprintf(stderr, "Failed to download rss: %s\n", url);
-        result = res;
-        goto cleanup;
-    }
-
-    char rss_title[256];
-    res = parse_rss(buffer.data, rss_title, sizeof(rss_title), rss_parse_callback, NULL);
-    if(res != 0) {
-        fprintf(stderr, "Failed to parse rss for url: %s\n", url);
-        result = res;
-        goto cleanup;
-    }
-    fprintf(stderr, "rss title: |%s|\n", rss_title);
-
-    cleanup:
-    buffer_deinit(&buffer);
-    return result;
-}
-- 
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