Commit: runtime(csv): include a simple csv filetype and syntax plugin

[Christian Brabandt]

runtime(csv): include a simple csv filetype and syntax plugin

Commit: https://github.com/vim/vim/commit/1ce65e35ac6555054db1276e30d9d63421e6b346
Author: Maxim Kim <hab...@gmail.com>
Date: Tue Jun 18 19:43:00 2024 +0200

runtime(csv): include a simple csv filetype and syntax plugin

fixes: https://github.com/vim/vim/issues/15038

Signed-off-by: Maxim Kim <hab...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/.github/MAINTAINERS b/.github/MAINTAINERS
index ea8e560d0..5ebe93a58 100644
--- a/.github/MAINTAINERS
+++ b/.github/MAINTAINERS
@@ -119,6 +119,7 @@ runtime/ftplugin/clojure.vim @axvr
runtime/ftplugin/cs.vim @nickspoons
runtime/ftplugin/csh.vim @dkearns
runtime/ftplugin/css.vim @dkearns
+runtime/ftplugin/csv.vim @habamax
runtime/ftplugin/cucumber.vim @tpope
runtime/ftplugin/dart.vim @ribru17
runtime/ftplugin/deb822sources.vim @jamessan
@@ -369,6 +370,7 @@ runtime/syntax/chatito.vim @ObserverOfTime
runtime/syntax/chuck.vim @gacallea
runtime/syntax/clojure.vim @axvr
runtime/syntax/cs.vim @nickspoons
+runtime/syntax/csv.vim @habamax
runtime/syntax/cucumber.vim @tpope
runtime/syntax/d.vim @JesseKPhillips
runtime/syntax/dart.vim @pr3d4t0r
diff --git a/runtime/ftplugin/csv.vim b/runtime/ftplugin/csv.vim
new file mode 100644
index 000000000..f1021f83b
--- /dev/null
+++ b/runtime/ftplugin/csv.vim
@@ -0,0 +1,23 @@
+vim9script
+
+# Maintainer: Maxim Kim <hab...@gmail.com>
+# Last Update: 2024-06-18
+
+if !exists("b:csv_delimiter")
+ # detect delimiter
+ var delimiters = ",; |"
+
+ var max = 0
+ for d in delimiters
+ var count = getline(1)->split(d)->len() + getline(2)->split(d)->len()
+ if count > max
+ max = count
+ b:csv_delimiter = d
+ endif
+ endfor
+endif
+
+if exists("b:did_ftplugin")
+ finish
+endif
+b:did_ftplugin = 1
diff --git a/runtime/syntax/csv.vim b/runtime/syntax/csv.vim
new file mode 100644
index 000000000..848029a48
--- /dev/null
+++ b/runtime/syntax/csv.vim
@@ -0,0 +1,39 @@
+vim9script
+
+# Maintainer: Maxim Kim <hab...@gmail.com>
+# Last Update: 2024-06-18
+
+if exists("b:current_syntax")
+ finish
+endif
+
+var delimiter = get(b:, "csv_delimiter", ",")
+
+# generate bunch of following syntaxes:
+# syntax match csvCol8 /.\{-}\(,\|$\)/ nextgroup=escCsvCol0,csvCol0
+# syntax region escCsvCol8 start=/ *"\([^"]*""\)*[^"]*/ end=/" *\(,\|$\)/ nextgroup=escCsvCol0,csvCol0
+for col in range(8, 0, -1)
+ var ncol = (col == 8 ? 0 : col + 1)
+ exe $'syntax match csvCol{col}' .. ' /.\{-}\(' .. delimiter .. '\|$\)/ nextgroup=escCsvCol' .. ncol .. ',csvCol' .. ncol
+ exe $'syntax region escCsvCol{col}' .. ' start=/ *"\([^"]*""\)*[^"]*/ end=/" *\(' .. delimiter .. '\|$\)/ nextgroup=escCsvCol' .. ncol .. ',csvCol' .. ncol
+endfor
+
+hi def link csvCol1 Statement
+hi def link csvCol2 Constant
+hi def link csvCol3 Type
+hi def link csvCol4 PreProc
+hi def link csvCol5 Identifier
+hi def link csvCol6 Special
+hi def link csvCol7 String
+hi def link csvCol8 Comment
+
+hi def link escCsvCol1 csvCol1
+hi def link escCsvCol2 csvCol2
+hi def link escCsvCol3 csvCol3
+hi def link escCsvCol4 csvCol4
+hi def link escCsvCol5 csvCol5
+hi def link escCsvCol6 csvCol6
+hi def link escCsvCol7 csvCol7
+hi def link escCsvCol8 csvCol8
+
+b:current_syntax = "csv"