feat: improve tree-sitter syntax highlighting with named nodes

- Add aliases for keywords (VAR_INPUT, BEGIN, IF, etc.) as named nodes
- Add aliases for built-in types (INT, BOOL, STRING, etc.) as type_builtin
- Add aliases for constants (TRUE, FALSE)
- Add aliases for operators (AND, OR, NOT, MOD)
- Add prefix node for # variable prefix highlighting
- Highlight FB instance names in calls
- Highlight FB parameter names as properties
- Update README with detailed syntax highlighting features
- Update .gitignore for *.wasm files
This commit is contained in:
2026-02-20 23:29:26 +01:00
parent 2cd59f572f
commit 69f5c7b215
6 changed files with 294 additions and 232 deletions
+1
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@@ -1,4 +1,5 @@
*.o
*.so
*.wasm
*.log
.DS_Store
+9 -5
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@@ -33,11 +33,15 @@ A comprehensive Neovim/LazyVim plugin providing **Language Server Protocol (LSP)
### Syntax Highlighting
- Full SCL syntax support via tree-sitter
- ORGANIZATION_BLOCK, FUNCTION_BLOCK, FUNCTION definitions
- Variable declarations (VAR_INPUT, VAR_OUTPUT, VAR_IN_OUT, VAR_TEMP, etc.)
- Control structures (IF/THEN/ELSE, CASE, FOR, WHILE, REPEAT)
- Code regions and comments
- All SCL data types and operators
- Block definitions: ORGANIZATION_BLOCK, FUNCTION_BLOCK, FUNCTION
- Variable sections: VAR_INPUT, VAR_OUTPUT, VAR_IN_OUT, VAR_TEMP, VAR_CONSTANT
- Control structures: IF/THEN/ELSIF/ELSE/END_IF, CASE/OF/END_CASE, FOR/TO/BY/DO/END_FOR, WHILE/END_WHILE, REPEAT/UNTIL/END_REPEAT
- Built-in data types: BOOL, INT, DINT, REAL, STRING, TIME, etc.
- Function block instances highlighted in calls
- FB parameter names (IN, PT, CU, etc.) highlighted as properties
- `#` prefix for local variables highlighted
- Operators: AND, OR, NOT, XOR, MOD
- Comments: line (`//`), block (`(* *)`), C-style (`/* */`)
### Additional Features
| Feature | Description |
+136
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@@ -0,0 +1,136 @@
local M = {}
M.FUNCTIONS = {
ADD = true,
SUB = true,
MUL = true,
DIV = true,
MIN = true,
MAX = true,
LIMIT = true,
MOVE = true,
CONVERT = true,
ROUND = true,
TRUNC = true,
CEIL = true,
FLOOR = true,
SQR = true,
SQRT = true,
SIN = true,
COS = true,
TAN = true,
ASIN = true,
ACOS = true,
ATAN = true,
LEN = true,
CONCAT = true,
LEFT = true,
RIGHT = true,
MID = true,
AND = true,
OR = true,
XOR = true,
SHL = true,
SHR = true,
ROL = true,
ROR = true,
BCD_I = true,
I_BCD = true,
}
M.FUNCTION_BLOCKS = {
TON = true,
TOF = true,
TP = true,
TONR = true,
CTU = true,
CTD = true,
CTUD = true,
IEC_TIMER = true,
IEC_TON = true,
IEC_TOF = true,
IEC_TP = true,
IEC_COUNTER = true,
IEC_CTU = true,
IEC_CTD = true,
IEC_CTUD = true,
R_TRIG = true,
F_TRIG = true,
SR = true,
RS = true,
SCHEDULE = true,
BPM = true,
LOG = true,
DATALOG = true,
}
M.PARAMETERS = {
TON = { inputs = { { name = "IN", type = "BOOL" }, { name = "PT", type = "TIME" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "ET", type = "TIME" } } },
TOF = { inputs = { { name = "IN", type = "BOOL" }, { name = "PT", type = "TIME" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "ET", type = "TIME" } } },
TP = { inputs = { { name = "IN", type = "BOOL" }, { name = "PT", type = "TIME" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "ET", type = "TIME" } } },
TONR = { inputs = { { name = "IN", type = "BOOL" }, { name = "PT", type = "TIME" }, { name = "R", type = "BOOL" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "ET", type = "TIME" } } },
CTU = { inputs = { { name = "CU", type = "BOOL" }, { name = "R", type = "BOOL" }, { name = "PV", type = "INT" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "CV", type = "INT" } } },
CTD = { inputs = { { name = "CD", type = "BOOL" }, { name = "LD", type = "BOOL" }, { name = "PV", type = "INT" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "CV", type = "INT" } } },
CTUD = { inputs = { { name = "CU", type = "BOOL" }, { name = "CD", type = "BOOL" }, { name = "R", type = "BOOL" }, { name = "LD", type = "BOOL" }, { name = "PV", type = "INT" } }, outputs = { { name = "QU", type = "BOOL" }, { name = "QD", type = "BOOL" }, { name = "CV", type = "INT" } } },
R_TRIG = { inputs = { { name = "CLK", type = "BOOL" } }, outputs = { { name = "Q", type = "BOOL" } } },
F_TRIG = { inputs = { { name = "CLK", type = "BOOL" } }, outputs = { { name = "Q", type = "BOOL" } } },
SR = { inputs = { { name = "S", type = "BOOL" }, { name = "R1", type = "BOOL" } }, outputs = { { name = "Q1", type = "BOOL" } } },
RS = { inputs = { { name = "S1", type = "BOOL" }, { name = "R", type = "BOOL" } }, outputs = { { name = "Q1", type = "BOOL" } } },
IEC_TIMER = { inputs = { { name = "IN", type = "BOOL" }, { name = "PT", type = "TIME" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "ET", type = "TIME" } } },
IEC_TON = { inputs = { { name = "IN", type = "BOOL" }, { name = "PT", type = "TIME" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "ET", type = "TIME" } } },
IEC_TOF = { inputs = { { name = "IN", type = "BOOL" }, { name = "PT", type = "TIME" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "ET", type = "TIME" } } },
IEC_TP = { inputs = { { name = "IN", type = "BOOL" }, { name = "PT", type = "TIME" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "ET", type = "TIME" } } },
IEC_COUNTER = { inputs = { { name = "CU", type = "BOOL" }, { name = "CD", type = "BOOL" }, { name = "R", type = "BOOL" }, { name = "LD", type = "BOOL" }, { name = "PV", type = "INT" } }, outputs = { { name = "QU", type = "BOOL" }, { name = "QD", type = "BOOL" }, { name = "CV", type = "INT" } } },
IEC_CTU = { inputs = { { name = "CU", type = "BOOL" }, { name = "R", type = "BOOL" }, { name = "PV", type = "INT" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "CV", type = "INT" } } },
IEC_CTD = { inputs = { { name = "CD", type = "BOOL" }, { name = "LD", type = "BOOL" }, { name = "PV", type = "INT" } }, outputs = { { name = "Q", type = "BOOL" }, { name = "CV", type = "INT" } } },
IEC_CTUD = { inputs = { { name = "CU", type = "BOOL" }, { name = "CD", type = "BOOL" }, { name = "R", type = "BOOL" }, { name = "LD", type = "BOOL" }, { name = "PV", type = "INT" } }, outputs = { { name = "QU", type = "BOOL" }, { name = "QD", type = "BOOL" }, { name = "CV", type = "INT" } } },
ADD = { inputs = { { name = "IN1" }, { name = "IN2" } }, outputs = { { name = "OUT" } } },
SUB = { inputs = { { name = "IN1" }, { name = "IN2" } }, outputs = { { name = "OUT" } } },
MUL = { inputs = { { name = "IN1" }, { name = "IN2" } }, outputs = { { name = "OUT" } } },
DIV = { inputs = { { name = "IN1" }, { name = "IN2" } }, outputs = { { name = "OUT" } } },
MIN = { inputs = { { name = "IN1" }, { name = "IN2" } }, outputs = { { name = "OUT" } } },
MAX = { inputs = { { name = "IN1" }, { name = "IN2" } }, outputs = { { name = "OUT" } } },
LIMIT = { inputs = { { name = "MN" }, { name = "IN" }, { name = "MX" } }, outputs = { { name = "OUT" } } },
MOVE = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
CONVERT = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
ROUND = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
TRUNC = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
CEIL = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
FLOOR = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
SQR = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
SQRT = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
SIN = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
COS = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
TAN = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
ASIN = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
ACOS = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
ATAN = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
LEN = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
CONCAT = { inputs = { { name = "IN1" }, { name = "IN2" } }, outputs = { { name = "OUT" } } },
LEFT = { inputs = { { name = "IN" }, { name = "L" } }, outputs = { { name = "OUT" } } },
RIGHT = { inputs = { { name = "IN" }, { name = "L" } }, outputs = { { name = "OUT" } } },
MID = { inputs = { { name = "IN" }, { name = "L" }, { name = "P" } }, outputs = { { name = "OUT" } } },
AND = { inputs = { { name = "IN1" }, { name = "IN2" } }, outputs = { { name = "OUT" } } },
OR = { inputs = { { name = "IN1" }, { name = "IN2" } }, outputs = { { name = "OUT" } } },
XOR = { inputs = { { name = "IN1" }, { name = "IN2" } }, outputs = { { name = "OUT" } } },
SHL = { inputs = { { name = "IN" }, { name = "N" } }, outputs = { { name = "OUT" } } },
SHR = { inputs = { { name = "IN" }, { name = "N" } }, outputs = { { name = "OUT" } } },
ROL = { inputs = { { name = "IN" }, { name = "N" } }, outputs = { { name = "OUT" } } },
ROR = { inputs = { { name = "IN" }, { name = "N" } }, outputs = { { name = "OUT" } } },
BCD_I = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
I_BCD = { inputs = { { name = "IN" } }, outputs = { { name = "OUT" } } },
}
function M.get_parameters(name)
return M.PARAMETERS[name:upper()]
end
function M.is_known_function_block(name)
return M.FUNCTION_BLOCKS[name:upper()] or false
end
function M.is_known_function(name)
return M.FUNCTIONS[name:upper()] or false
end
return M
+31 -14
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@@ -6,24 +6,41 @@ local M = {}
function M.setup(opts)
opts = opts or {}
-- Add plugin to runtime path
vim.opt.runtimepath:prepend(vim.fn.stdpath("data") .. "/lazy/scl_lsp")
M.create_commands()
-- Treesitter parser config
local has_ts, ts = pcall(require, "nvim-treesitter.parsers")
if has_ts and ts.get_parser_configs then
local ok, parser_config = pcall(ts.get_parser_configs)
if ok and parser_config then
parser_config.scl = {
install_info = {
files = { "src/parser.c" },
generate_requires_npm = false,
requires_generate_from_grammar = false,
},
filetype = "scl",
}
end
-- Treesitter setup for Neovim 0.11+
local function setup_treesitter()
local lang = vim.treesitter.language
local parser_path = "/home/lazar/dev/scl_lsp/src/parser.so"
-- Register the SCL language
lang.add("scl", {
path = parser_path,
filetype = "scl",
})
end
pcall(setup_treesitter)
-- Install queries
local queries_src = "/home/lazar/dev/scl_lsp/queries/highlights.scm"
local queries_dest = vim.fn.stdpath("data") .. "/site/queries/scl/highlights.scm"
if vim.fn.filereadable(queries_src) == 1 then
vim.fn.mkdir(vim.fn.stdpath("data") .. "/site/queries/scl", "p")
vim.fn.writefile(vim.fn.readfile(queries_src), queries_dest)
end
-- Enable treesitter manually for SCL files - bypass LazyVim
vim.api.nvim_create_autocmd("FileType", {
pattern = "scl",
callback = function(args)
vim.treesitter.start(args.buf, "scl")
end,
})
-- Register blink.cmp source
if opts.cmp then
local function try_register()
+61 -22
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@@ -1,5 +1,19 @@
local M = {}
local function get_builtin_interface(var_type)
local builtin = require("scl.builtin_instructions")
local clean_type = var_type:gsub('"', ''):gsub("#", ""):upper()
local params_info = builtin.get_parameters(clean_type)
if params_info then
return {
inputs = params_info.inputs or {},
outputs = params_info.outputs or {},
inouts = {},
}
end
return nil
end
local function get_fb_interface(var_type)
local fb_parser = require("scl.fb_parser")
local clean_type = var_type:gsub('"', '')
@@ -49,44 +63,69 @@ function M.fill_multiline_params()
local line_before_cursor = line:sub(1, col)
local known_vars = get_known_variables(bufnr)
local builtin = require("scl.builtin_instructions")
local fb_name = nil
local fb_prefix = ""
local is_builtin_function = false
local prefix, var_name = line_before_cursor:match("(#?)([%w_]+)%s*%(%s*$")
if var_name and known_vars[var_name] then
fb_prefix = prefix or ""
fb_name = var_name
end
if not fb_name then
prefix, var_name = line_before_cursor:match("(#?)([%w_]+)%s*%([^)]-,%s*$")
if var_name and known_vars[var_name] then
if var_name then
if known_vars[var_name] then
fb_prefix = prefix or ""
fb_name = var_name
elseif builtin.is_known_function(var_name) then
fb_prefix = prefix or ""
fb_name = var_name
is_builtin_function = true
end
end
if not fb_name then
vim.notify("No FB instance found before cursor", vim.log.levels.WARN)
prefix, var_name = line_before_cursor:match("(#?)([%w_]+)%s*%([^)]-,%s*$")
if var_name then
if known_vars[var_name] then
fb_prefix = prefix or ""
fb_name = var_name
elseif builtin.is_known_function(var_name) then
fb_prefix = prefix or ""
fb_name = var_name
is_builtin_function = true
end
end
end
if not fb_name then
vim.notify("No FB instance or known function found before cursor", vim.log.levels.WARN)
return
end
local var_type = get_variable_type(fb_name, bufnr)
if not var_type then
vim.notify("Cannot find type for: " .. fb_name, vim.log.levels.WARN)
return
local fb_interface = nil
if is_builtin_function then
fb_interface = get_builtin_interface(fb_name)
else
local var_type = get_variable_type(fb_name, bufnr)
if not var_type then
vim.notify("Cannot find type for: " .. fb_name, vim.log.levels.WARN)
return
end
local clean_type = var_type:gsub('"', '')
fb_interface = get_builtin_interface(clean_type)
if not fb_interface then
if not is_fb_type(clean_type) then
vim.notify(clean_type .. " is not an FB/Function type", vim.log.levels.WARN)
return
end
fb_interface = get_fb_interface(clean_type)
end
end
local clean_type = var_type:gsub('"', '')
if not is_fb_type(clean_type) then
vim.notify(clean_type .. " is not an FB/Function type", vim.log.levels.WARN)
return
end
local fb_interface = get_fb_interface(clean_type)
if not fb_interface then
vim.notify("Cannot get interface for: " .. clean_type, vim.log.levels.WARN)
vim.notify("Cannot get interface for: " .. (clean_type or fb_name), vim.log.levels.WARN)
return
end
@@ -102,7 +141,7 @@ function M.fill_multiline_params()
end
if #params == 0 then
vim.notify("No parameters found for: " .. clean_type, vim.log.levels.WARN)
vim.notify("No parameters found for: " .. (clean_type or fb_name), vim.log.levels.WARN)
return
end
+56 -191
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@@ -1,211 +1,76 @@
; Comprehensive SCL highlight queries for Neovim
; SCL highlights
; ============================================
; Comments
; ============================================
(line_comment) @comment
(block_comment) @comment
(c_style_comment) @comment
; ============================================
; Literals
; ============================================
(number) @number
(hex_number) @number
(string) @string
(time_value) @number
; ============================================
; Constants
; ============================================
(
(identifier) @constant.builtin
(#match? @constant.builtin "^(TRUE|FALSE|TRUE#|FALSE#)$")
)
(
(type) @type.builtin
(#match? @type.builtin "^(TRUE|FALSE)$")
)
(prefix) @punctuation.special
; ============================================
; Identifiers
; ============================================
(identifier) @variable
(prefixed_identifier) @variable
; ============================================
; Types - Basic
; ============================================
(
(type) @type.builtin
(#match? @type.builtin "^(BOOL|Bool|INT|Int|DINT|DInt|SINT|SInt|USINT|USInt|UINT|UInt|WORD|Word|DWORD|DWord|BYTE|Byte|REAL|Real|LREAL|LReal|TIME|Time|TOD|Tod|DT|Dt|String|STRING|CHAR|Char|WSTRING|WString)$")
)
; FB instance calls - highlight instance name as type
(fb_call
instance: (prefixed_identifier
(identifier) @type))
(fb_call
instance: (identifier) @type)
; Types - User defined (quoted strings like "UDT_Type")
(type
(string) @type
)
; ============================================
; Keywords - Block definitions
; ============================================
"ORGANIZATION_BLOCK" @keyword
"FUNCTION_BLOCK" @keyword
"FUNCTION" @keyword
"END_ORGANIZATION_BLOCK" @keyword
"END_FUNCTION_BLOCK" @keyword
"END_FUNCTION" @keyword
"BEGIN" @keyword
; ============================================
; Keywords - Variable sections
; ============================================
"VAR_INPUT" @keyword
"VAR_OUTPUT" @keyword
"VAR_IN_OUT" @keyword
"VAR" @keyword
"VAR_TEMP" @keyword
"VAR_CONSTANT" @keyword
"END_VAR" @keyword
"CONSTANT" @keyword
"RETAIN" @keyword
"NON_RETAIN" @keyword
; ============================================
; Keywords - Control flow
; ============================================
"IF" @conditional
"THEN" @conditional
"ELSIF" @conditional
"ELSE" @conditional
"END_IF" @conditional
"CASE" @conditional
"OF" @conditional
"END_CASE" @conditional
; ============================================
; Keywords - Loops
; ============================================
"FOR" @repeat
"TO" @repeat
"BY" @repeat
"DO" @repeat
"END_FOR" @repeat
"WHILE" @repeat
"END_WHILE" @repeat
"REPEAT" @repeat
"UNTIL" @repeat
"END_REPEAT" @repeat
"EXIT" @keyword
"CONTINUE" @keyword
; ============================================
; Keywords - Regions
; ============================================
"REGION" @namespace
"END_REGION" @namespace
; ============================================
; Keywords - Other
; ============================================
"TITLE" @keyword
"VERSION" @keyword
"ARRAY" @keyword
"OF" @keyword
; ============================================
; Fields
; ============================================
(block
name: (string) @namespace)
(block
name: (identifier) @namespace)
(var_item
; FB parameter names (IN :=, PT :=, etc.)
(fb_parameter
name: (identifier) @property)
; Function call names
(function_call
(identifier) @function)
; Variable declarations
(var_item
type: (type) @type)
name: (identifier) @variable)
; ============================================
; Functions and function calls
; ============================================
(function_call
(identifier) @function.call)
; Type references in declarations
(type
(identifier) @type)
(function_call
(string) @function.call)
(type_builtin) @type.builtin
(parameter
(identifier) @parameter)
(keyword) @keyword
(constant) @constant.builtin
(operator) @operator
; ============================================
; Array access
; ============================================
(array_access
"[" @punctuation.bracket
"]" @punctuation.bracket)
(assignment) @operator
(binary_expression) @operator
(unary_expression) @operator
; ============================================
; Field access
; ============================================
(field_access
"." @punctuation.delimiter)
; ============================================
; Attribute lists
; ============================================
(attribute_list
"{" @punctuation.bracket
"}" @punctuation.bracket)
(attribute_list
"," @punctuation.delimiter)
(attribute_list
";" @punctuation.delimiter)
(attribute
"."
(identifier) @property)
; ============================================
; Operators - Logical
; ============================================
"AND" @operator
"OR" @operator
"XOR" @operator
"NOT" @operator
(array_access) @property
; ============================================
; Operators - Comparison
; ============================================
"=" @operator
"<>" @operator
"<" @operator
">" @operator
"<=" @operator
">=" @operator
(attribute_list) @attribute
(attribute) @attribute
(attribute_value) @string
; ============================================
; Operators - Arithmetic
; ============================================
"+" @operator
"-" @operator
"*" @operator
"/" @operator
"MOD" @operator
"**" @operator
(var_item) @property
; ============================================
; Operators - Assignment
; ============================================
":=" @operator
"=>" @operator
(function_call) @function.call
(fb_call) @function.call
(if_statement) @conditional
(elsif_clause) @conditional
(else_clause) @conditional
(case_statement) @conditional
(case_item) @conditional
(for_statement) @repeat
(while_statement) @repeat
(repeat_statement) @repeat
; ============================================
; Punctuation
; ============================================
";" @punctuation.delimiter
":" @punctuation.delimiter
"," @punctuation.delimiter
@@ -214,17 +79,17 @@
"[" @punctuation.bracket
"]" @punctuation.bracket
"." @punctuation.delimiter
".." @punctuation.delimiter
"#" @punctuation.special
; ============================================
; Binary and unary expressions
; ============================================
(binary_expression) @operator
(unary_expression) @operator
":=" @operator
"=>" @operator
"=" @operator
"<>" @operator
"<" @operator
">" @operator
"<=" @operator
">=" @operator
; ============================================
; Range expressions
; ============================================
(range
".." @punctuation.delimiter)
"+" @operator
"-" @operator
"*" @operator
"/" @operator