Merge pull request #16607 from bfredl/no2misc1

refactor: get rid of misc1.c ("functions that didn't seem to fit elsewhere")

1 files changed, 60 insertions, 0 deletions

diff --git a/src/nvim/os/users.c b/src/nvim/os/users.c
index 9952e2b387..e0ce3fec31 100644
--- a/src/nvim/os/users.c
+++ b/src/nvim/os/users.c
@@ -18,6 +18,9 @@
 # include <lm.h>
 #endif
 
+// All user names (for ~user completion as done by shell).
+static garray_T ga_users = GA_EMPTY_INIT_VALUE;
+
 // Add a user name to the list of users in garray_T *users.
 // Do nothing if user name is NULL or empty.
 static void add_user(garray_T *users, char *user, bool need_copy)
@@ -157,3 +160,60 @@ char *os_get_user_directory(const char *name)
   return NULL;
 }
 
+
+#if defined(EXITFREE)
+
+void free_users(void)
+{
+  ga_clear_strings(&ga_users);
+}
+
+#endif
+
+/// Find all user names for user completion.
+///
+/// Done only once and then cached.
+static void init_users(void)
+{
+  static int lazy_init_done = false;
+
+  if (lazy_init_done) {
+    return;
+  }
+
+  lazy_init_done = true;
+
+  os_get_usernames(&ga_users);
+}
+
+/// Given to ExpandGeneric() to obtain an user names.
+char_u *get_users(expand_T *xp, int idx)
+{
+  init_users();
+  if (idx < ga_users.ga_len) {
+    return ((char_u **)ga_users.ga_data)[idx];
+  }
+  return NULL;
+}
+
+/// Check whether name matches a user name.
+///
+/// @return 0 if name does not match any user name.
+///         1 if name partially matches the beginning of a user name.
+///         2 is name fully matches a user name.
+int match_user(char_u *name)
+{
+  int n = (int)STRLEN(name);
+  int result = 0;
+
+  init_users();
+  for (int i = 0; i < ga_users.ga_len; i++) {
+    if (STRCMP(((char_u **)ga_users.ga_data)[i], name) == 0) {
+      return 2;       // full match
+    }
+    if (STRNCMP(((char_u **)ga_users.ga_data)[i], name, n) == 0) {
+      result = 1;       // partial match
+    }
+  }
+  return result;
+}