argument: drop unneeded special-cases

- Dropping ")" and "]" special-cases avoids 10 (out of ~30) new errors in a full
  `gen_help_html.validate()` run.
- The /\w+\(/ special is no longer needed since "(" was added.
- Other cases appear redundant, they don't affect test results nor
  `gen_help_html.validate()` results.

Author: justinmk

corpus/arguments.txt

@@ -92,11 +92,13 @@ nvim_buf_detach_event[{buf}]
         (word))
       (word))
     (line
+      (word)
       (word)
       (argument
         (word))
       (word))
     (line
+      (word)
       (word)
       (argument
         (word))
@@ -105,6 +107,7 @@ nvim_buf_detach_event[{buf}]
         (word))
       (word))
     (line
+      (word)
       (word)
       (argument
         (word))
@@ -149,8 +152,6 @@ EXTERNAL *netrw-externapp* {{{2
       (word)
       (word)
       (word)
-      (word)
-      (word)
       (word))
     (line
       (word)
@@ -184,7 +185,6 @@ EXTERNAL *netrw-externapp* {{{2
       (word)
       (word)
       (word)
-      (word)
       (word))
     (line
       (word)

corpus/codeblock.txt

@@ -90,7 +90,6 @@ text
       (word)
       (taglink
         (word))
-      (word)
       (word))
     (line
       (codeblock
@@ -442,7 +441,7 @@ Not a language annotation: >lua is not at EOL
       (word)
       (word))
     (line
-     (word)))
+      (word)))
   (block
     (line
       (word)
@@ -452,18 +451,18 @@ Not a language annotation: >lua is not at EOL
       (word)
       (word))
     (line
-     (word)))
+      (word)))
   (block
-   (line
-    (word)
-    (word)
-    (word)
-    (word)
-    (word)
-    (word)
-    (word)
-    (word)
-    (word)
-    (word))
-   (line
-    (word))))
+    (line
+      (word)
+      (word)
+      (word)
+      (word)
+      (word)
+      (word)
+      (word)
+      (word)
+      (word)
+      (word))
+    (line
+      (word))))

corpus/heading3-column_heading.txt

@@ -126,6 +126,7 @@ nvim_ui_try_resize({width}, {height})                   *nvim_ui_try_resize()*
         (word))))
   (block
     (line
+      (word)
       (word)
       (argument
         (word))

corpus/optionlink.txt

@@ -96,14 +96,12 @@ Regular	  /	:help /[
       (word)
       (word)
       (word)
-      (word)
       (ERROR
         (word))
       (word)
       (word)
       (argument
         (word))
-      (word)
       (word))
     (line
       (word)

corpus/url.txt

@@ -51,7 +51,6 @@ markdown: [https://neovim.io/doc/user/#yay](https://neovim.io/doc/user/#yay).
       (word)
       (url
         (word))
-      (word)
       (word))
     (line
       (word)
@@ -62,5 +61,4 @@ markdown: [https://neovim.io/doc/user/#yay](https://neovim.io/doc/user/#yay).
       (word)
       (url
         (word))
-      (word)
       (word))))

grammar.js

@@ -30,10 +30,7 @@ module.exports = grammar({
       $._atom_common,
     ),
     word: ($) => choice(
-      // Try the more-restrictive pattern at higher relative precedence, so that things like
-      // "foo({a})" parse as "(word) (argument)" instead of "(word)".
-      token(prec(-1, /[^{,(\[\n\t ][^,(\[\n\t ]*/)),
-      token(prec(-2, /[^\n\t ]+/)),
+      token(prec(-1, /[^,(\[\n\t ]+/)),
       $._word_common,
     ),
 
@@ -76,16 +73,11 @@ module.exports = grammar({
       '|',
       // NOT argument:
       '{',
-      '}',
       '{}',
       /\{\{+[0-9]*/,
+
       '(',
-      ')',
       '[',
-      ']',
-      "['",
-      "']",
-      /\w+\(/,
       '~',
       // NOT codeblock: random ">" in middle of the motherflippin text.
       '>',