Add early experimental support for enum extraction for API docs.

Author: mackron

docs/api.md

@@ -2,10 +2,10 @@
 
 ---
 
-# fs_result_to_string
+# fs_result_description
 
 ```c
-const char* fs_result_to_string(
+const char* fs_result_description(
     fs_result result
 );
 ```
@@ -2814,3 +2814,101 @@ int fs_snprintf(
 
 ---
 
+# Enums
+
+## fs_result
+
+| Value | Description |
+|-------|-------------|
+| `FS_SUCCESS` = `0` |  |
+| `FS_ERROR` = `-1,  /* Generic, unknown error. */` |  |
+| `FS_INVALID_ARGS` = `-2` |  |
+| `FS_INVALID_OPERATION` = `-3` |  |
+| `FS_OUT_OF_MEMORY` = `-4` |  |
+| `FS_OUT_OF_RANGE` = `-5` |  |
+| `FS_ACCESS_DENIED` = `-6` |  |
+| `FS_DOES_NOT_EXIST` = `-7` |  |
+| `FS_ALREADY_EXISTS` = `-8` |  |
+| `FS_TOO_MANY_OPEN_FILES` = `-9` |  |
+| `FS_INVALID_FILE` = `-10` |  |
+| `FS_TOO_BIG` = `-11` |  |
+| `FS_PATH_TOO_LONG` = `-12` |  |
+| `FS_NAME_TOO_LONG` = `-13` |  |
+| `FS_NOT_DIRECTORY` = `-14` |  |
+| `FS_IS_DIRECTORY` = `-15` |  |
+| `FS_DIRECTORY_NOT_EMPTY` = `-16` |  |
+| `FS_AT_END` = `-17` |  |
+| `FS_NO_SPACE` = `-18` |  |
+| `FS_BUSY` = `-19` |  |
+| `FS_IO_ERROR` = `-20` |  |
+| `FS_INTERRUPT` = `-21` |  |
+| `FS_UNAVAILABLE` = `-22` |  |
+| `FS_ALREADY_IN_USE` = `-23` |  |
+| `FS_BAD_ADDRESS` = `-24` |  |
+| `FS_BAD_SEEK` = `-25` |  |
+| `FS_BAD_PIPE` = `-26` |  |
+| `FS_DEADLOCK` = `-27` |  |
+| `FS_TOO_MANY_LINKS` = `-28` |  |
+| `FS_NOT_IMPLEMENTED` = `-29` |  |
+| `FS_NO_MESSAGE` = `-30` |  |
+| `FS_BAD_MESSAGE` = `-31` |  |
+| `FS_NO_DATA_AVAILABLE` = `-32` |  |
+| `FS_INVALID_DATA` = `-33` |  |
+| `FS_TIMEOUT` = `-34` |  |
+| `FS_NO_NETWORK` = `-35` |  |
+| `FS_NOT_UNIQUE` = `-36` |  |
+| `FS_NOT_SOCKET` = `-37` |  |
+| `FS_NO_ADDRESS` = `-38` |  |
+| `FS_BAD_PROTOCOL` = `-39` |  |
+| `FS_PROTOCOL_UNAVAILABLE` = `-40` |  |
+| `FS_PROTOCOL_NOT_SUPPORTED` = `-41` |  |
+| `FS_PROTOCOL_FAMILY_NOT_SUPPORTED` = `-42` |  |
+| `FS_ADDRESS_FAMILY_NOT_SUPPORTED` = `-43` |  |
+| `FS_SOCKET_NOT_SUPPORTED` = `-44` |  |
+| `FS_CONNECTION_RESET` = `-45` |  |
+| `FS_ALREADY_CONNECTED` = `-46` |  |
+| `FS_NOT_CONNECTED` = `-47` |  |
+| `FS_CONNECTION_REFUSED` = `-48` |  |
+| `FS_NO_HOST` = `-49` |  |
+| `FS_IN_PROGRESS` = `-50` |  |
+| `FS_CANCELLED` = `-51` |  |
+| `FS_MEMORY_ALREADY_MAPPED` = `-52` |  |
+| `FS_DIFFERENT_DEVICE` = `-53` |  |
+| `FS_CHECKSUM_MISMATCH` = `-100` |  |
+| `FS_NO_BACKEND` = `-101` |  |
+| `FS_NEEDS_MORE_INPUT` = `100, /* Some stream needs more input data before it can be proc` |  |
+| `FS_HAS_MORE_OUTPUT` = `102  /* Some stream has more output data to be read, but there'` |  |
+
+---
+
+## fs_seek_origin
+
+| Value | Description |
+|-------|-------------|
+| `FS_SEEK_SET` = `0` |  |
+| `FS_SEEK_CUR` = `1` |  |
+| `FS_SEEK_END` = `2` |  |
+
+---
+
+## fs_format
+
+| Value | Description |
+|-------|-------------|
+| `FS_FORMAT_TEXT` |  |
+| `FS_FORMAT_BINARY` |  |
+
+---
+
+## fs_sysdir_type
+
+| Value | Description |
+|-------|-------------|
+| `FS_SYSDIR_HOME` |  |
+| `FS_SYSDIR_TEMP` |  |
+| `FS_SYSDIR_CONFIG` |  |
+| `FS_SYSDIR_DATA` |  |
+| `FS_SYSDIR_CACHE` |  |
+
+---
+