From e4eac77887cd9c1dd010057d441691d030a851df Mon Sep 17 00:00:00 2001
From: "Rafael G. Martins" <rafael@rafaelmartins.eng.br>
Date: Wed, 10 Jun 2015 23:14:50 -0300
Subject: content-parser: added "automatic" links

---
 src/content-parser.c         | 44 +++++++++++++++++++++++++++++---------------
 tests/check_content_parser.c | 35 +++++++++++++++++++++++++++++++++--
 2 files changed, 62 insertions(+), 17 deletions(-)

diff --git a/src/content-parser.c b/src/content-parser.c
index 111109e..aa76777 100644
--- a/src/content-parser.c
+++ b/src/content-parser.c
@@ -51,7 +51,9 @@ typedef enum {
     LINK_IMAGE,
     LINK_TEXT,
     LINK_TEXT_CLOSE,
-    LINK_URL
+    LINK_URL,
+    LINK_AUTO,
+    LINK_AUTO_CLOSE,
 } blogc_content_parser_link_state_t;
 
 
@@ -65,6 +67,7 @@ blogc_content_parse_inline(const char *src)
     size_t current = 0;
     size_t start = 0;
     size_t start_state = 0;
+    size_t end = 0;
 
     b_string_t *rv = b_string_new();
 
@@ -196,6 +199,11 @@ blogc_content_parse_inline(const char *src)
                     break;
                 }
                 if (state == LINK_TEXT) {
+                    if (current == start) {
+                        start = current + 1;
+                        state = LINK_AUTO;
+                        break;
+                    }
                     open_bracket++;
                     break;
                 }
@@ -206,6 +214,21 @@ blogc_content_parse_inline(const char *src)
                     b_string_append_c(rv, c);
                     break;
                 }
+                if (state == LINK_AUTO) {
+                    end = current;
+                    state = LINK_AUTO_CLOSE;
+                    break;
+                }
+                if (state == LINK_AUTO_CLOSE) {
+                    state = LINK_CLOSED;
+                    tmp = b_strndup(src + start, end - start);
+                    b_string_append_printf(rv, "<a href=\"%s\">%s</a>", tmp, tmp);
+                    end = 0;
+                    free(tmp);
+                    tmp = NULL;
+                    is_image = false;
+                    break;
+                }
                 if (state == LINK_TEXT) {
                     if (open_bracket-- == 0) {
                         state = LINK_TEXT_CLOSE;
@@ -315,20 +338,11 @@ blogc_content_parse_inline(const char *src)
         }
 
         if (is_last && state != LINK_CLOSED) {
-            if (is_image) {
-                b_string_append_c(rv, src[start_state]);
-                if (start_state < (src_len - 1))
-                    b_string_append_c(rv, src[start_state + 1]);
-                current = start_state + 2;
-                is_image = false;
-            }
-            else {
-                b_string_append_c(rv, src[start_state]);
-                current = start_state + 1;
-            }
-            state = LINK_CLOSED;
-            start_state = 0;
-            continue;
+            b_string_append_c(rv, src[start_state]);
+            tmp = blogc_content_parse_inline(src + start_state + 1);
+            b_string_append(rv, tmp);
+            free(tmp);
+            tmp = NULL;
         }
         current++;
     }
diff --git a/tests/check_content_parser.c b/tests/check_content_parser.c
index d549de9..9b1d318 100644
--- a/tests/check_content_parser.c
+++ b/tests/check_content_parser.c
@@ -609,13 +609,13 @@ test_content_parse_inline(void **state)
 {
     char *html = blogc_content_parse_inline(
         "**bola***asd* [![lol](http://google.com/lol.png) **lol** "
-        "\\[asd\\]\\(qwe\\)](http://google.com) ``chunda``");
+        "\\[asd\\]\\(qwe\\)](http://google.com) ``chunda`` [[bola]]");
     assert_non_null(html);
     assert_string_equal(html,
         "<strong>bola</strong><em>asd</em> "
         "<a href=\"http://google.com\"><img src=\"http://google.com/lol.png\" "
         "alt=\"lol\"> <strong>lol</strong> [asd](qwe)</a> "
-        "<code>chunda</code>");
+        "<code>chunda</code> <a href=\"bola\">bola</a>");
     free(html);
     html = blogc_content_parse_inline("*bola*");
     assert_non_null(html);
@@ -780,6 +780,36 @@ test_content_parse_inline_link(void **state)
 }
 
 
+void
+test_content_parse_inline_link_auto(void **state)
+{
+    char *html = blogc_content_parse_inline("[[guda]]");
+    assert_non_null(html);
+    assert_string_equal(html, "<a href=\"guda\">guda</a>");
+    free(html);
+    html = blogc_content_parse_inline("[[guda]]\n");
+    assert_non_null(html);
+    assert_string_equal(html, "<a href=\"guda\">guda</a>\n");
+    free(html);
+    html = blogc_content_parse_inline("[[guda]asd]");
+    assert_non_null(html);
+    assert_string_equal(html, "<a href=\"guda\">guda</a>");
+    free(html);
+    html = blogc_content_parse_inline("[[guda]asd]\n");
+    assert_non_null(html);
+    assert_string_equal(html, "<a href=\"guda\">guda</a>\n");
+    free(html);
+    html = blogc_content_parse_inline("[[guda]asd");
+    assert_non_null(html);
+    assert_string_equal(html, "[[guda]asd");
+    free(html);
+    html = blogc_content_parse_inline("[[guda]asd\n");
+    assert_non_null(html);
+    assert_string_equal(html, "[[guda]asd\n");
+    free(html);
+}
+
+
 void
 test_content_parse_inline_image(void **state)
 {
@@ -902,6 +932,7 @@ main(void)
         unit_test(test_content_parse_inline_strong),
         unit_test(test_content_parse_inline_code),
         unit_test(test_content_parse_inline_link),
+        unit_test(test_content_parse_inline_link_auto),
         unit_test(test_content_parse_inline_image),
         unit_test(test_content_parse_inline_line_break),
     };
-- 
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