Add trailingSlashAbbr param (#11)

* Add trailingSlashAbbr param

* Make it default

Author: ujihisa

denops/@ddc-sources/file.ts

@@ -21,6 +21,7 @@ type Params = {
   bufAsRoot: boolean;
   projAsRoot: boolean;
   trailingSlash: boolean;
+  trailingSlashAbbr: boolean;
   followSymlinks: boolean;
   disableMenu: boolean;
 
@@ -239,6 +240,8 @@ export class Source extends BaseSource<Params> {
               .map(({ name, isDirectory, isSymlink }): Candidate => ({
                 word: name.slice(inputFileBasePrefix.length) +
                   (p.trailingSlash && isDirectory ? path.sep : ""),
+                abbr: name.slice(inputFileBasePrefix.length) +
+                  (p.trailingSlashAbbr && isDirectory ? path.sep : ""),
                 menu: p.disableMenu
                   ? undefined
                   : (menu !== "" && isInputAbs ? path.sep : "") + menu,
@@ -278,6 +281,7 @@ export class Source extends BaseSource<Params> {
       bufAsRoot: false,
       projAsRoot: true,
       trailingSlash: false,
+      trailingSlashAbbr: true,
       followSymlinks: false,
       disableMenu: false,
 

doc/ddc-file.txt

@@ -164,6 +164,13 @@ trailingSlash	(boolean)
 
 		Default: false
 
+					   *ddc-file-params-trailingSlashAbbr*
+trailingSlashAbbr	(boolean)
+		Whether to display trailing slash when completing directory
+		name. Note that this won't be actually inserted.
+
+		Default: true
+
 					      *ddc-file-params-followSymlinks*
 followSymlinks	(boolean)
 		Whether to follow symlinks to determine whether the filename