feat: collect matches into a numbered list

1 files changed, 51 insertions, 9 deletions

diff --git a/src/main.c b/src/main.c
index c87bc0d..bc29a4c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,12 +1,52 @@
+#define _POSIX_C_SOURCE 200809L
+
 #include <dirent.h>
 #include <zlib.h>
 
 #include <stdbool.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 
 #define LINE_SIZE 8192
 
+struct MatchList
+{
+    char** paths;
+    size_t count;
+    size_t capacity;
+};
+
+static bool match_list_add(struct MatchList* matches, const char* path)
+{
+    if (matches->count == matches->capacity)
+    {
+        size_t new_capacity = matches->capacity == 0 ? 16 : matches->capacity * 2;
+        char** grown = realloc(matches->paths, new_capacity * sizeof(char*));
+        if (grown == NULL)
+            return false;
+
+        matches->paths = grown;
+        matches->capacity = new_capacity;
+    }
+
+    char* copy = strdup(path);
+    if (copy == NULL)
+        return false;
+
+    matches->paths[matches->count] = copy;
+    matches->count++;
+    return true;
+}
+
+static void match_list_free(struct MatchList* matches)
+{
+    for (size_t index = 0; index < matches->count; index++)
+        free(matches->paths[index]);
+
+    free(matches->paths);
+}
+
 static bool ends_with(const char* string, const char* suffix)
 {
     size_t string_length = strlen(string);
@@ -64,7 +104,7 @@ static bool page_contains(const char* path, const char* query)
     return plain_page_contains(path, query);
 }
 
-static void list_pages(const char* section, const char* query)
+static void list_pages(const char* section, const char* query, struct MatchList* matches)
 {
     DIR* section_stream = opendir(section);
     if (section_stream == NULL)
@@ -78,13 +118,13 @@ static void list_pages(const char* section, const char* query)
             char path[4096];
             (void) snprintf(path, sizeof(path), "%s/%s", section, entry->d_name);
             if (page_contains(path, query))
-                (void) printf("    match: %s\n", path);
+                (void) match_list_add(matches, path);
         }
 
     (void) closedir(section_stream);
 }
 
-static void list_sections(const char* directory, const char* query)
+static void list_sections(const char* directory, const char* query, struct MatchList* matches)
 {
     DIR* directory_stream = opendir(directory);
     if (directory_stream == NULL)
@@ -97,7 +137,7 @@ static void list_sections(const char* directory, const char* query)
         {
             char section[4096];
             (void) snprintf(section, sizeof(section), "%s/%s", directory, entry->d_name);
-            list_pages(section, query);
+            list_pages(section, query, matches);
         }
 
     (void) closedir(directory_stream);
@@ -113,8 +153,6 @@ int main(int argc, char** argv)
 
     const char* query = argv[1];
 
-    (void) printf("searching for: %s\n", query);
-
     FILE* manpath_pipe = popen("manpath", "r");
     if (manpath_pipe == NULL)
     {
@@ -134,13 +172,17 @@ int main(int argc, char** argv)
 
     buffer[strcspn(buffer, "\n")] = '\0';
 
+    struct MatchList matches = {0};
+
     char* save_pointer = NULL;
     for (const char* directory = strtok_r(buffer, ":", &save_pointer);
          directory != NULL;
          directory = strtok_r(NULL, ":", &save_pointer))
-    {
-        list_sections(directory, query);
-    }
+        list_sections(directory, query, &matches);
+
+    for (size_t index = 0; index < matches.count; index++)
+        (void) printf("%zu) %s\n", index + 1, matches.paths[index]);
 
+    match_list_free(&matches);
     return 0;
 }