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tia-lsp.nvim/lua/tia/builtin_instructions.lua
T
lazar 8c6a050efb refactor: rename scl_lsp → tia_lsp (project umbrella for future STL/LAD/FBD) 
Rename the project from scl_lsp to tia_lsp to future-proof for additional
TIA Portal languages (STL/AWL, LAD, FBD). The 'scl' language name is kept
as-is for the SCL filetype and tree-sitter parser; future languages get
their own names (stl, lad, fbd).

Project-wide changes:
- lua/scl_lsp/ → lua/tia_lsp/  (plugin entry point)
- lua/scl/     → lua/tia/      (language modules, shared across TIA langs)
- require('scl.*')    → require('tia.*')
- require('scl_lsp')  → require('tia_lsp')
- LSP client name:    'scl_lsp' → 'tia_lsp'
- Diagnostic source:  'scl_lsp' → 'tia_lsp'  (src/diagnostics.lua)
- package.json name:  'scl-language-server' → 'tia-lsp'

lua/tia_lsp/init.lua:
- Add vim.fn.exepath('tia-lsp') detection so the plugin prefers the
  mason-installed executable and falls back to { 'lua', server_path }
  for manual installs.
- Add opts.ts_parser_url to configure the tree-sitter parser source.
- Remove hardcoded ~/dev/scl_lsp paths in favor of ~/dev/tia-lsp and
  the new ts_parser_url option.

Cleanup:
- Delete lua/tia/init.lua (dead code, unreferenced duplicate of tia_lsp).
- Delete scl_lsp.sh (replaced by the mason-installed bin/tia-lsp wrapper).
- Update README.md and AGENTS.md to reflect the two-repo split
  (tia-lsp server + tia-lsp.nvim plugin) and document Mason installation.

Unchanged (intentional):
- grammar.js, src/grammar.json, src/parser.c: tree-sitter language name
  remains 'scl' (it's the language, not the project).
- Filetype patterns ('scl', 'udt', 'db') in autocmds.
- :SCL* command names (per-filetype prefix; future :STL* etc.).

Tests pass with the same pre-existing failures as before the rename
(formatter VAR_INPUT test, udt_parser line 199 const-variable bug,
plc_json reference-project-missing). No new failures introduced.
2026-07-18 11:30:55 +02:00

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-- TIA Portal built-in instructions for SCL Neovim plugin
-- Defines functions, function blocks, and their parameters for completion
local M = {}
-- Built-in functions (return values, no state)
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,
}
-- Built-in function blocks (have state, need instance)
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,
}
-- Parameter definitions for built-in instructions
-- Format: { inputs = { { name, type }, ... }, outputs = { { name, type }, ... } }
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" } } },
}
--- Get parameter info for a built-in instruction
--- @param name string The instruction name
--- @return table|nil Parameter definition with inputs and outputs arrays
function M.get_parameters(name)
return M.PARAMETERS[name:upper()]
end
--- Check if name is a known function block
--- @param name string The name to check
--- @return boolean True if known function block
function M.is_known_function_block(name)
return M.FUNCTION_BLOCKS[name:upper()] or false
end
--- Check if name is a known function
--- @param name string The name to check
--- @return boolean True if known function
function M.is_known_function(name)
return M.FUNCTIONS[name:upper()] or false
end
return M
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