feat: major grammar upgrade for SCL spec conformance (Phase 1)
Comprehensive grammar rewrite to conform to SCL specs. Improves parse success rate from 0% to 90% (187 of 208 reference project files). Case-insensitive keywords: - Add ci() helper for case-insensitive token matching - All keywords (TYPE, STRUCT, VAR, IF, etc.) now match any case - All type names (BOOL, Int, Dint, etc.) now match any case New grammar constructs: - RETURN statement - GOTO statement - AUTHOR/FAMILY/NAME block headers - VAR DB_SPECIFIC section - ARRAY[*] (variable-length arrays) - Multidimensional ARRAY[a..b, c..d] - REF_TO <type> - VARIANT type - Anonymous STRUCT...END_STRUCT as a type - Compound assignment operators (+=, -=, *=, /=, &=, |=, ^=) - Chained assignments (lvalue := lvalue := expression) - Bit access (lvalue.%X0) - Method calls (lvalue.field(...)) - Struct/array initializers ((TRUE, FALSE, ...), (name := value)) - END_STRUCT; (semicolon after END_STRUCT in UDTs) - Typed DB associated block name (DATA_BLOCK "Name" : "UDT") - BOM (Byte Order Mark) handling - TITLE as single-token statement (avoids keyword/identifier conflict) New type_builtin aliases: - LWORD, LINT, ULINT, UDINT, DATE, TIME_OF_DAY, DATE_AND_TIME - S5TIME, LTIME, DTL, LTOD, LDT, LTIME_OF_DAY, DATE_AND_LTIME New literal formats: - Binary (2#...), Octal (8#...) - BOOL#TRUE/FALSE - Typed integers (INT#, SINT#, DINT#, etc.) - Date/time literals (DATE#, TOD#, DT#, LTIME#, S5TIME#, DTL#) - WSTRING# and STRING# typed string literals - C# char literal - Time units with case-insensitive matching (T#1S, T#2s) Updated constructs: - CASE labels: comma-separated lists, string labels - Function call parameters: interleaved input (:=) and output (=>) params - FOR loop variable: accepts prefixed_identifier (#tempVar) - Array bounds: accept string/identifier constants (Array[0.."MAX"]) - Author/Family values: accept unquoted text with hyphens/slashes Known remaining issues (21 files, 10%): - Triple-nested parentheses in expressions - Some multi-line function call parameter patterns - END_REGION with trailing region name - Complex chained field access in assignments
This commit is contained in:
+423
-237
@@ -1,98 +1,152 @@
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// Case-insensitive token helper: matches any case combination of a word.
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function ci(word) {
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return token(new RegExp(word.split('').map(c =>
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c.toUpperCase() === c.toLowerCase() ? c : '[' + c.toUpperCase() + c.toLowerCase() + ']'
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).join('')));
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}
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module.exports = grammar({
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name: 'scl',
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extras: $ => [
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/\s/,
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$.line_comment,
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$.block_comment,
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$.c_style_comment
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],
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conflicts: $ => [
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[$.case_item],
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[$.region_statement],
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[$.region_name],
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[$.case_statement],
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[$.fb_call, $.function_call],
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[$.fb_parameter, $.parameter],
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[$.var_declaration, $.var_temp_declaration],
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[$.var_declaration, $.var_constant_declaration],
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[$.var_declaration, $.var_retain_declaration],
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[$.var_declaration, $.var_non_retain_declaration]
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],
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conflicts: $ => [
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[$.case_item],
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[$.region_statement],
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[$.case_statement],
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[$.fb_call, $.function_call],
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[$.fb_parameter, $.parameter],
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[$.var_declaration, $.var_temp_declaration],
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[$.var_declaration, $.var_constant_declaration],
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[$.var_declaration, $.var_retain_declaration],
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[$.var_declaration, $.var_non_retain_declaration],
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[$.var_declaration, $.var_db_specific_declaration],
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[$.type, $.struct_type],
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[$.expression, $.struct_initializer]
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],
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rules: {
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source_file: $ => repeat(
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choice(
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$.organization_block,
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$.function_block,
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$.function,
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$.type_definition,
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$.data_block,
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$.statement
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source_file: $ => seq(
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optional($.bom),
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repeat(
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choice(
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$.organization_block,
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$.function_block,
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$.function,
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$.type_definition,
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$.data_block,
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$.statement
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)
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)
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),
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// Title statement: matches the entire "TITLE = <text>" line as a single token
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title_statement: $ => token(seq(
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/[Tt][Ii][Tt][Ll][Ee]/,
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/\s*=\s*/,
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/[^\n\r]+/
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)),
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// Author/Family value: unquoted text with hyphens, underscores, slashes, etc.
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// E.g. L-TECH, Siemens_Digital_Industries, Manz/Siemens (without quotes)
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author_value: $ => token(repeat1(/[a-zA-Z0-9_\-\/]/)),
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// --- Block definitions ---
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type_definition: $ => seq(
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alias('TYPE', $.keyword),
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alias(ci('TYPE'), $.keyword),
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field('name', choice($.string, $.identifier)),
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optional(seq(alias('TITLE', $.keyword), '=', choice($.string, $.identifier))),
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optional($.title_statement),
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optional($.attribute_list),
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optional(seq(alias('VERSION', $.keyword), ':', $.number)),
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alias('STRUCT', $.keyword),
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optional(seq(alias(ci('NAME'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('AUTHOR'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('FAMILY'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('VERSION'), $.keyword), ':', $.number)),
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alias(ci('STRUCT'), $.keyword),
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repeat(choice($.var_item, $.block_comment)),
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alias('END_STRUCT', $.keyword),
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alias('END_TYPE', $.keyword)
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alias(ci('END_STRUCT'), $.keyword),
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optional(';'),
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alias(ci('END_TYPE'), $.keyword)
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),
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data_block: $ => seq(
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alias('DATA_BLOCK', $.keyword),
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alias(ci('DATA_BLOCK'), $.keyword),
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field('name', choice($.string, $.identifier)),
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optional(seq(alias('TITLE', $.keyword), '=', choice($.string, $.identifier))),
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optional($.title_statement),
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optional($.attribute_list),
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optional(seq(alias('VERSION', $.keyword), ':', $.number)),
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optional(seq(alias(ci('NAME'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('AUTHOR'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('FAMILY'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('VERSION'), $.keyword), ':', $.number)),
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optional(choice(
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alias('NON_RETAIN', $.keyword),
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alias('RETAIN', $.keyword)
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alias(ci('NON_RETAIN'), $.keyword),
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alias(ci('RETAIN'), $.keyword)
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)),
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optional($.var_declaration),
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alias('BEGIN', $.keyword),
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// Associated FB/UDT name (for typed DBs: appears on its own line)
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optional(field('associated', $.string)),
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optional(choice(
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$.var_declaration,
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$.var_db_specific_declaration
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)),
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alias(ci('BEGIN'), $.keyword),
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repeat($.statement),
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alias('END_DATA_BLOCK', $.keyword)
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alias(ci('END_DATA_BLOCK'), $.keyword)
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),
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organization_block: $ => seq(
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alias('ORGANIZATION_BLOCK', $.keyword),
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alias(ci('ORGANIZATION_BLOCK'), $.keyword),
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field('name', $.string),
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optional(seq(alias('TITLE', $.keyword), '=', choice($.string, $.identifier))),
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optional($.title_statement),
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optional($.attribute_list),
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optional(seq(alias('VERSION', $.keyword), ':', $.number)),
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optional(seq(alias(ci('NAME'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('AUTHOR'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('FAMILY'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('VERSION'), $.keyword), ':', $.number)),
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repeat($.var_declaration),
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alias('BEGIN', $.keyword),
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alias(ci('BEGIN'), $.keyword),
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repeat($.statement),
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alias('END_ORGANIZATION_BLOCK', $.keyword)
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alias(ci('END_ORGANIZATION_BLOCK'), $.keyword)
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),
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function_block: $ => seq(
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alias('FUNCTION_BLOCK', $.keyword),
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alias(ci('FUNCTION_BLOCK'), $.keyword),
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field('name', $.string),
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optional(seq(alias('TITLE', $.keyword), '=', choice($.string, $.identifier))),
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optional($.title_statement),
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optional($.attribute_list),
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optional(seq(alias('VERSION', $.keyword), ':', $.number)),
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repeat($.var_declaration),
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alias('BEGIN', $.keyword),
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optional(seq(alias(ci('NAME'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('AUTHOR'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('FAMILY'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('VERSION'), $.keyword), ':', $.number)),
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repeat(choice(
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$.var_declaration,
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$.var_temp_declaration,
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$.var_constant_declaration,
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$.var_retain_declaration,
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$.var_non_retain_declaration,
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$.var_db_specific_declaration,
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$.block_comment
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)),
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alias(ci('BEGIN'), $.keyword),
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repeat($.statement),
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alias('END_FUNCTION_BLOCK', $.keyword)
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alias(ci('END_FUNCTION_BLOCK'), $.keyword)
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),
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function: $ => seq(
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alias('FUNCTION', $.keyword),
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alias(ci('FUNCTION'), $.keyword),
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field('name', $.string),
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optional(seq(':', $.type)),
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optional(seq(alias('TITLE', $.keyword), '=', choice($.string, $.identifier))),
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optional($.title_statement),
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optional($.attribute_list),
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optional(seq(alias('VERSION', $.keyword), ':', $.number)),
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optional(seq(alias(ci('NAME'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('AUTHOR'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('FAMILY'), $.keyword), ':', choice($.string, $.author_value))),
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optional(seq(alias(ci('VERSION'), $.keyword), ':', $.number)),
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repeat(choice(
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$.var_declaration,
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$.var_temp_declaration,
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@@ -101,11 +155,13 @@ module.exports = grammar({
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$.var_non_retain_declaration,
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$.block_comment
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)),
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alias('BEGIN', $.keyword),
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alias(ci('BEGIN'), $.keyword),
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repeat($.statement),
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alias('END_FUNCTION', $.keyword)
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alias(ci('END_FUNCTION'), $.keyword)
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),
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// --- Attributes ---
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attribute_list: $ => seq(
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'{',
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$.attribute,
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@@ -113,141 +169,172 @@ module.exports = grammar({
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optional(choice(',', ';')),
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'}'
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),
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attribute: $ => seq(
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$.identifier,
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':=',
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$.attribute_value
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),
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attribute_value: $ => choice(
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$.string,
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alias('TRUE', $.constant),
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alias('FALSE', $.constant),
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alias(ci('TRUE'), $.constant),
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alias(ci('FALSE'), $.constant),
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$.identifier
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),
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// --- VAR section declarations ---
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var_declaration: $ => seq(
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choice(
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alias('VAR_INPUT', $.keyword),
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alias('VAR_OUTPUT', $.keyword),
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alias('VAR_IN_OUT', $.keyword),
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alias('VAR', $.keyword),
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alias('VAR_TEMP', $.keyword),
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seq(alias('VAR', $.keyword), alias('CONSTANT', $.keyword)),
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seq(alias('VAR', $.keyword), alias('RETAIN', $.keyword)),
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seq(alias('VAR', $.keyword), alias('NON_RETAIN', $.keyword)),
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alias('VAR_CONSTANT', $.keyword),
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alias('VAR_RETAIN', $.keyword),
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alias('VAR_NON_RETAIN', $.keyword)
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alias(ci('VAR_INPUT'), $.keyword),
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alias(ci('VAR_OUTPUT'), $.keyword),
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alias(ci('VAR_IN_OUT'), $.keyword),
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alias(ci('VAR'), $.keyword),
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alias(ci('VAR_TEMP'), $.keyword),
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seq(alias(ci('VAR'), $.keyword), alias(ci('CONSTANT'), $.keyword)),
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seq(alias(ci('VAR'), $.keyword), alias(ci('RETAIN'), $.keyword)),
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seq(alias(ci('VAR'), $.keyword), alias(ci('NON_RETAIN'), $.keyword)),
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alias(ci('VAR_CONSTANT'), $.keyword),
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alias(ci('VAR_RETAIN'), $.keyword),
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alias(ci('VAR_NON_RETAIN'), $.keyword)
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),
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repeat(choice($.var_item, $.block_comment)),
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alias('END_VAR', $.keyword)
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alias(ci('END_VAR'), $.keyword)
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),
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var_temp_declaration: $ => seq(
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alias('VAR_TEMP', $.keyword),
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alias(ci('VAR_TEMP'), $.keyword),
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repeat(choice($.var_item, $.block_comment)),
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alias('END_VAR', $.keyword)
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alias(ci('END_VAR'), $.keyword)
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),
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var_constant_declaration: $ => seq(
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choice(
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seq(alias('VAR', $.keyword), alias('CONSTANT', $.keyword)),
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alias('VAR_CONSTANT', $.keyword)
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seq(alias(ci('VAR'), $.keyword), alias(ci('CONSTANT'), $.keyword)),
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alias(ci('VAR_CONSTANT'), $.keyword)
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),
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repeat(choice($.var_item, $.block_comment)),
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alias('END_VAR', $.keyword)
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alias(ci('END_VAR'), $.keyword)
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),
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var_retain_declaration: $ => seq(
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choice(
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seq(alias('VAR', $.keyword), alias('RETAIN', $.keyword)),
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alias('VAR_RETAIN', $.keyword)
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seq(alias(ci('VAR'), $.keyword), alias(ci('RETAIN'), $.keyword)),
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alias(ci('VAR_RETAIN'), $.keyword)
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),
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repeat(choice($.var_item, $.block_comment)),
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alias('END_VAR', $.keyword)
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alias(ci('END_VAR'), $.keyword)
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),
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var_non_retain_declaration: $ => seq(
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choice(
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seq(alias('VAR', $.keyword), alias('NON_RETAIN', $.keyword)),
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alias('VAR_NON_RETAIN', $.keyword)
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seq(alias(ci('VAR'), $.keyword), alias(ci('NON_RETAIN'), $.keyword)),
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alias(ci('VAR_NON_RETAIN'), $.keyword)
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),
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repeat(choice($.var_item, $.block_comment)),
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alias('END_VAR', $.keyword)
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alias(ci('END_VAR'), $.keyword)
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),
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var_db_specific_declaration: $ => seq(
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seq(alias(ci('VAR'), $.keyword), alias(ci('DB_SPECIFIC'), $.keyword)),
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repeat(choice($.var_item, $.block_comment)),
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alias(ci('END_VAR'), $.keyword)
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),
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// --- Variable items ---
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var_item: $ => seq(
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field('name', $.identifier),
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optional($.attribute_list),
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':',
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field('type', $.type),
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optional(seq(':=', $.expression)),
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optional(seq(':=', choice($.expression, $.struct_initializer))),
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';'
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),
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// --- Types ---
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type: $ => choice(
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alias('BOOL', $.type_builtin),
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alias('Bool', $.type_builtin),
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alias('INT', $.type_builtin),
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alias('Int', $.type_builtin),
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alias('int', $.type_builtin),
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alias('DINT', $.type_builtin),
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alias('DInt', $.type_builtin),
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alias('dint', $.type_builtin),
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alias('SINT', $.type_builtin),
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alias('SInt', $.type_builtin),
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alias('sint', $.type_builtin),
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alias('USINT', $.type_builtin),
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alias('USInt', $.type_builtin),
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alias('usint', $.type_builtin),
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alias('UINT', $.type_builtin),
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alias('UInt', $.type_builtin),
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alias('uint', $.type_builtin),
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alias('WORD', $.type_builtin),
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alias('Word', $.type_builtin),
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alias('word', $.type_builtin),
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alias('DWORD', $.type_builtin),
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alias('DWord', $.type_builtin),
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alias('dword', $.type_builtin),
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alias('BYTE', $.type_builtin),
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alias('Byte', $.type_builtin),
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alias('byte', $.type_builtin),
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alias('REAL', $.type_builtin),
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alias('Real', $.type_builtin),
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alias('real', $.type_builtin),
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alias('LREAL', $.type_builtin),
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alias('LReal', $.type_builtin),
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alias('lreal', $.type_builtin),
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alias('TIME', $.type_builtin),
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alias('Time', $.type_builtin),
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alias('time', $.type_builtin),
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alias('TOD', $.type_builtin),
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alias('Tod', $.type_builtin),
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alias('tod', $.type_builtin),
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alias('DT', $.type_builtin),
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alias('Dt', $.type_builtin),
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alias('dt', $.type_builtin),
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alias('String', $.type_builtin),
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alias('STRING', $.type_builtin),
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alias('string', $.type_builtin),
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seq(choice(alias('String', $.type_builtin), alias('STRING', $.type_builtin), alias('string', $.type_builtin)), '[', $.number, ']'),
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alias('WString', $.type_builtin),
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alias('WSTRING', $.type_builtin),
|
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alias('wstring', $.type_builtin),
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seq(choice(alias('WString', $.type_builtin), alias('WSTRING', $.type_builtin), alias('wstring', $.type_builtin)), '[', $.number, ']'),
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alias('Char', $.type_builtin),
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alias('CHAR', $.type_builtin),
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alias('char', $.type_builtin),
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alias('WChar', $.type_builtin),
|
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alias('WCHAR', $.type_builtin),
|
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alias('wchar', $.type_builtin),
|
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seq(alias('ARRAY', $.keyword), '[', $.number, '..', $.number, ']', alias('OF', $.keyword), $.type),
|
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$.type_builtin,
|
||||
$.array_type,
|
||||
$.ref_type,
|
||||
$.struct_type,
|
||||
$.string_type,
|
||||
$.identifier,
|
||||
$.string
|
||||
),
|
||||
|
||||
|
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type_builtin: $ => choice(
|
||||
alias(ci('BOOL'), $.type_builtin),
|
||||
alias(ci('BYTE'), $.type_builtin),
|
||||
alias(ci('WORD'), $.type_builtin),
|
||||
alias(ci('DWORD'), $.type_builtin),
|
||||
alias(ci('LWORD'), $.type_builtin),
|
||||
alias(ci('SINT'), $.type_builtin),
|
||||
alias(ci('USINT'), $.type_builtin),
|
||||
alias(ci('INT'), $.type_builtin),
|
||||
alias(ci('UINT'), $.type_builtin),
|
||||
alias(ci('DINT'), $.type_builtin),
|
||||
alias(ci('UDINT'), $.type_builtin),
|
||||
alias(ci('LINT'), $.type_builtin),
|
||||
alias(ci('ULINT'), $.type_builtin),
|
||||
alias(ci('REAL'), $.type_builtin),
|
||||
alias(ci('LREAL'), $.type_builtin),
|
||||
alias(ci('CHAR'), $.type_builtin),
|
||||
alias(ci('WCHAR'), $.type_builtin),
|
||||
alias(ci('TIME'), $.type_builtin),
|
||||
alias(ci('LTIME'), $.type_builtin),
|
||||
alias(ci('S5TIME'), $.type_builtin),
|
||||
alias(ci('DATE'), $.type_builtin),
|
||||
alias(ci('TIME_OF_DAY'), $.type_builtin),
|
||||
alias(ci('TOD'), $.type_builtin),
|
||||
alias(ci('LTOD'), $.type_builtin),
|
||||
alias(ci('LTIME_OF_DAY'), $.type_builtin),
|
||||
alias(ci('DATE_AND_TIME'), $.type_builtin),
|
||||
alias(ci('DT'), $.type_builtin),
|
||||
alias(ci('LDT'), $.type_builtin),
|
||||
alias(ci('DATE_AND_LTIME'), $.type_builtin),
|
||||
alias(ci('DTL'), $.type_builtin),
|
||||
alias(ci('VARIANT'), $.type_builtin)
|
||||
),
|
||||
|
||||
string_type: $ => seq(
|
||||
choice(
|
||||
alias(ci('STRING'), $.type_builtin),
|
||||
alias(ci('WSTRING'), $.type_builtin)
|
||||
),
|
||||
optional(seq('[', $.number, ']'))
|
||||
),
|
||||
|
||||
array_type: $ => seq(
|
||||
alias(ci('ARRAY'), $.keyword),
|
||||
'[',
|
||||
repeat1(seq(
|
||||
choice(
|
||||
seq(choice($.number, $.string, $.identifier), '..', choice($.number, $.string, $.identifier)),
|
||||
'*'
|
||||
),
|
||||
optional(',')
|
||||
)),
|
||||
']',
|
||||
alias(ci('OF'), $.keyword),
|
||||
$.type
|
||||
),
|
||||
|
||||
ref_type: $ => seq(
|
||||
alias(ci('REF_TO'), $.keyword),
|
||||
$.type
|
||||
),
|
||||
|
||||
struct_type: $ => seq(
|
||||
alias(ci('STRUCT'), $.keyword),
|
||||
repeat(choice($.var_item, $.block_comment)),
|
||||
alias(ci('END_STRUCT'), $.keyword)
|
||||
),
|
||||
|
||||
// --- Statements ---
|
||||
|
||||
statement: $ => choice(
|
||||
$.assignment,
|
||||
$.fb_call,
|
||||
@@ -258,6 +345,8 @@ module.exports = grammar({
|
||||
$.repeat_statement,
|
||||
$.region_statement,
|
||||
$.function_call,
|
||||
$.return_statement,
|
||||
$.goto_statement,
|
||||
$.exit_statement,
|
||||
$.continue_statement,
|
||||
$.empty_statement,
|
||||
@@ -265,17 +354,18 @@ module.exports = grammar({
|
||||
$.var_temp_declaration,
|
||||
$.var_constant_declaration,
|
||||
$.var_retain_declaration,
|
||||
$.var_non_retain_declaration
|
||||
$.var_non_retain_declaration,
|
||||
$.var_db_specific_declaration
|
||||
),
|
||||
|
||||
empty_statement: $ => ';',
|
||||
|
||||
// --- FB calls ---
|
||||
|
||||
fb_call: $ => seq(
|
||||
field('instance', choice($.prefixed_identifier, $.identifier)),
|
||||
'(',
|
||||
optional(seq(
|
||||
$.fb_parameter_list
|
||||
)),
|
||||
optional($.fb_parameter_list),
|
||||
')'
|
||||
),
|
||||
|
||||
@@ -289,186 +379,279 @@ module.exports = grammar({
|
||||
choice(':=', '=>'),
|
||||
$.expression
|
||||
),
|
||||
|
||||
|
||||
// --- Assignments (including compound and chained) ---
|
||||
|
||||
assignment: $ => seq(
|
||||
field('target', $.lvalue),
|
||||
':=',
|
||||
field('value', $.expression),
|
||||
choice(':=', '+=', '-=', '*=', '/=', '&=', '|=', '^='),
|
||||
field('value', choice($.expression, $.chained_assignment)),
|
||||
';'
|
||||
),
|
||||
|
||||
|
||||
chained_assignment: $ => prec.right(seq(
|
||||
$.lvalue,
|
||||
':=',
|
||||
choice($.expression, $.chained_assignment)
|
||||
)),
|
||||
|
||||
lvalue: $ => choice(
|
||||
$.identifier,
|
||||
$.prefixed_identifier,
|
||||
$.field_access,
|
||||
$.array_access,
|
||||
$.function_name
|
||||
$.function_name,
|
||||
$.bit_access
|
||||
),
|
||||
|
||||
function_name: $ => $.string,
|
||||
|
||||
|
||||
prefixed_identifier: $ => seq(alias('#', $.prefix), $.identifier),
|
||||
|
||||
|
||||
field_access: $ => seq($.lvalue, '.', choice($.identifier, $.prefixed_identifier)),
|
||||
|
||||
|
||||
array_access: $ => seq($.lvalue, '[', $.expression, ']'),
|
||||
|
||||
|
||||
// Bit access: lvalue.%X0, lvalue.%X15, etc.
|
||||
bit_access: $ => seq($.lvalue, '.', '%', /[A-Za-z]+/, $.number),
|
||||
|
||||
// --- Control flow ---
|
||||
|
||||
if_statement: $ => seq(
|
||||
alias('IF', $.keyword),
|
||||
alias(ci('IF'), $.keyword),
|
||||
$.expression,
|
||||
alias('THEN', $.keyword),
|
||||
alias(ci('THEN'), $.keyword),
|
||||
repeat($.statement),
|
||||
repeat($.elsif_clause),
|
||||
optional($.else_clause),
|
||||
alias('END_IF', $.keyword)
|
||||
alias(ci('END_IF'), $.keyword)
|
||||
),
|
||||
|
||||
|
||||
elsif_clause: $ => seq(
|
||||
alias('ELSIF', $.keyword),
|
||||
alias(ci('ELSIF'), $.keyword),
|
||||
$.expression,
|
||||
alias('THEN', $.keyword),
|
||||
alias(ci('THEN'), $.keyword),
|
||||
repeat($.statement)
|
||||
),
|
||||
|
||||
else_clause: $ => seq(alias('ELSE', $.keyword), repeat($.statement)),
|
||||
|
||||
|
||||
else_clause: $ => seq(alias(ci('ELSE'), $.keyword), repeat($.statement)),
|
||||
|
||||
case_statement: $ => seq(
|
||||
alias('CASE', $.keyword),
|
||||
alias(ci('CASE'), $.keyword),
|
||||
$.expression,
|
||||
alias('OF', $.keyword),
|
||||
alias(ci('OF'), $.keyword),
|
||||
repeat($.case_item),
|
||||
optional($.else_clause),
|
||||
alias('END_CASE', $.keyword),
|
||||
optional(';')
|
||||
alias(ci('END_CASE'), $.keyword)
|
||||
),
|
||||
|
||||
|
||||
case_item: $ => seq(
|
||||
choice($.number, $.identifier, $.prefixed_identifier, $.range),
|
||||
repeat1(seq(
|
||||
choice($.number, $.string, $.identifier, $.prefixed_identifier, $.range),
|
||||
optional(',')
|
||||
)),
|
||||
':',
|
||||
repeat($.statement)
|
||||
),
|
||||
|
||||
|
||||
range: $ => seq($.number, '..', $.number),
|
||||
|
||||
|
||||
for_statement: $ => seq(
|
||||
alias('FOR', $.keyword),
|
||||
$.identifier,
|
||||
alias(ci('FOR'), $.keyword),
|
||||
choice($.identifier, $.prefixed_identifier),
|
||||
':=',
|
||||
$.expression,
|
||||
alias('TO', $.keyword),
|
||||
alias(ci('TO'), $.keyword),
|
||||
$.expression,
|
||||
optional(seq(alias('BY', $.keyword), $.expression)),
|
||||
alias('DO', $.keyword),
|
||||
optional(seq(alias(ci('BY'), $.keyword), $.expression)),
|
||||
alias(ci('DO'), $.keyword),
|
||||
repeat($.statement),
|
||||
alias('END_FOR', $.keyword)
|
||||
alias(ci('END_FOR'), $.keyword)
|
||||
),
|
||||
|
||||
while_statement: $ => seq(
|
||||
alias('WHILE', $.keyword),
|
||||
alias(ci('WHILE'), $.keyword),
|
||||
$.expression,
|
||||
alias('DO', $.keyword),
|
||||
alias(ci('DO'), $.keyword),
|
||||
repeat($.statement),
|
||||
alias('END_WHILE', $.keyword)
|
||||
alias(ci('END_WHILE'), $.keyword)
|
||||
),
|
||||
|
||||
repeat_statement: $ => seq(
|
||||
alias('REPEAT', $.keyword),
|
||||
alias(ci('REPEAT'), $.keyword),
|
||||
repeat($.statement),
|
||||
alias('UNTIL', $.keyword),
|
||||
alias(ci('UNTIL'), $.keyword),
|
||||
$.expression,
|
||||
alias('END_REPEAT', $.keyword)
|
||||
alias(ci('END_REPEAT'), $.keyword)
|
||||
),
|
||||
|
||||
|
||||
region_statement: $ => seq(
|
||||
alias('REGION', $.keyword),
|
||||
alias(ci('REGION'), $.keyword),
|
||||
$.region_name,
|
||||
repeat($.statement),
|
||||
alias('END_REGION', $.keyword),
|
||||
alias(ci('END_REGION'), $.keyword),
|
||||
optional($.region_name)
|
||||
),
|
||||
|
||||
region_name: $ => repeat1(
|
||||
choice(
|
||||
$.identifier,
|
||||
$.string,
|
||||
'/',
|
||||
'-'
|
||||
)
|
||||
region_name: $ => token(repeat1(choice(/[a-zA-Z0-9_\-\/]/, /[ \t]+/))),
|
||||
|
||||
return_statement: $ => alias(ci('RETURN'), $.keyword),
|
||||
|
||||
goto_statement: $ => seq(alias(ci('GOTO'), $.keyword), $.identifier),
|
||||
|
||||
// --- Function calls (with interleaved input/output params) ---
|
||||
|
||||
function_call: $ => choice(
|
||||
seq(choice($.identifier, $.string), '(', optional($.parameter_list), ')'),
|
||||
seq($.method_callee, '(', optional($.parameter_list), ')')
|
||||
),
|
||||
|
||||
function_call: $ => seq(
|
||||
choice($.identifier, $.string),
|
||||
'(',
|
||||
optional(seq(
|
||||
$.parameter_list,
|
||||
optional(seq('=>', $.identifier))
|
||||
)),
|
||||
')'
|
||||
),
|
||||
|
||||
|
||||
method_callee: $ => seq($.lvalue, '.', $.identifier),
|
||||
|
||||
parameter_list: $ => seq(
|
||||
$.parameter,
|
||||
repeat(seq(',', $.parameter))
|
||||
),
|
||||
|
||||
parameter: $ => seq($.identifier, ':=', $.expression),
|
||||
|
||||
|
||||
parameter: $ => choice(
|
||||
prec(1, seq(field('name', $.identifier), ':=', $.expression)),
|
||||
prec(1, seq(field('name', $.identifier), '=>', $.identifier))
|
||||
),
|
||||
|
||||
// --- Expressions ---
|
||||
|
||||
expression: $ => choice(
|
||||
$.number,
|
||||
$.hex_number,
|
||||
$.binary_number,
|
||||
$.octal_number,
|
||||
$.time_value,
|
||||
$.date_literal,
|
||||
$.bool_literal,
|
||||
$.typed_int_literal,
|
||||
$.wstring_literal,
|
||||
$.char_literal,
|
||||
$.identifier,
|
||||
$.prefixed_identifier,
|
||||
$.field_access,
|
||||
$.array_access,
|
||||
$.bit_access,
|
||||
$.string,
|
||||
$.function_call,
|
||||
$.unary_expression,
|
||||
$.binary_expression,
|
||||
seq('(', $.expression, ')')
|
||||
prec(1, seq('(', $.expression, ')'))
|
||||
),
|
||||
|
||||
|
||||
unary_expression: $ => prec.right(10, choice(
|
||||
seq(alias('NOT', $.operator), $.expression),
|
||||
seq(alias(ci('NOT'), $.operator), $.expression),
|
||||
seq('+', $.expression),
|
||||
seq('-', $.expression)
|
||||
)),
|
||||
|
||||
|
||||
binary_expression: $ => choice(
|
||||
prec.left(2, seq($.expression, alias('OR', $.operator), $.expression)),
|
||||
prec.left(3, seq($.expression, alias('XOR', $.operator), $.expression)),
|
||||
prec.left(4, seq($.expression, alias('AND', $.operator), $.expression)),
|
||||
prec.left(2, seq($.expression, alias(ci('OR'), $.operator), $.expression)),
|
||||
prec.left(3, seq($.expression, alias(ci('XOR'), $.operator), $.expression)),
|
||||
prec.left(4, seq($.expression, alias(ci('AND'), $.operator), $.expression)),
|
||||
prec.left(5, seq($.expression, choice('=', '<>'), $.expression)),
|
||||
prec.left(6, seq($.expression, choice('<', '>', '<=', '>='), $.expression)),
|
||||
prec.left(7, seq($.expression, choice('+', '-'), $.expression)),
|
||||
prec.left(8, seq($.expression, choice('*', '/', alias('MOD', $.operator)), $.expression))
|
||||
prec.left(8, seq($.expression, choice('*', '/', alias(ci('MOD'), $.operator)), $.expression))
|
||||
),
|
||||
|
||||
|
||||
// Struct/array initializer: (TRUE, FALSE, 1, 2, ...) or ((1, 2), (3, 4)) or () or (name := value, ...)
|
||||
struct_initializer: $ => prec(1, seq(
|
||||
'(',
|
||||
optional(seq(
|
||||
choice(
|
||||
$.struct_initializer,
|
||||
seq(field('name', $.identifier), ':=', choice($.expression, $.struct_initializer)),
|
||||
$.expression
|
||||
),
|
||||
repeat(seq(',', choice(
|
||||
$.struct_initializer,
|
||||
seq(field('name', $.identifier), ':=', choice($.expression, $.struct_initializer)),
|
||||
$.expression
|
||||
))),
|
||||
optional(',')
|
||||
)),
|
||||
')'
|
||||
)),
|
||||
|
||||
// --- Literals ---
|
||||
|
||||
number: $ => token(/\d+(\.\d+)?/),
|
||||
|
||||
|
||||
hex_number: $ => token(seq('16#', /[0-9A-Fa-f_]+/)),
|
||||
|
||||
time_value: $ => token(seq('T#', /\d+(_?\d)*(ms|s|min|h)/)),
|
||||
|
||||
|
||||
binary_number: $ => token(seq('2#', /[01_]+/)),
|
||||
|
||||
octal_number: $ => token(seq('8#', /[0-7_]+/)),
|
||||
|
||||
time_value: $ => token(seq(
|
||||
/[Tt]#/,
|
||||
repeat1(seq(/\d+/, choice(/[Nn][Ss]/, /[Uu][Ss]/, /[Mm][Ss]/, /[Ss]/, /[Mm][Ii][Nn]/, /[Hh]/, /[Dd]/))),
|
||||
optional(/_[\d_]+[A-Za-z]+/)
|
||||
)),
|
||||
|
||||
date_literal: $ => token(seq(
|
||||
choice(
|
||||
/[Dd][Aa][Tt][Ee]#/,
|
||||
/[Tt][Oo][Dd]#/,
|
||||
/[Dd][Tt]#/,
|
||||
/[Ll][Tt][Ii][Mm][Ee]#/,
|
||||
/[Ss]5[Tt][Ii][Mm][Ee]#/,
|
||||
/[Ll][Dd][Tt]#/,
|
||||
/[Ll][Tt][Oo][Dd]#/,
|
||||
/[Dd][Tt][Ll]#/
|
||||
),
|
||||
/[\d:_\-]+/
|
||||
)),
|
||||
|
||||
bool_literal: $ => token(seq(
|
||||
/[Bb][Oo][Oo][Ll]#/,
|
||||
choice('TRUE', 'FALSE', 'true', 'false', 'True', 'False')
|
||||
)),
|
||||
|
||||
typed_int_literal: $ => token(seq(
|
||||
choice(
|
||||
/[Uu]?[Ss][Ii][Nn][Tt]#/,
|
||||
/[Uu]?[Ii][Nn][Tt]#/,
|
||||
/[Uu]?[Dd][Ii][Nn][Tt]#/,
|
||||
/[Uu]?[Ll][Ii][Nn][Tt]#/,
|
||||
/L#/,
|
||||
/C#/,
|
||||
/LW#/
|
||||
),
|
||||
/[\dA-Fa-f_#]+/
|
||||
)),
|
||||
|
||||
string: $ => choice(
|
||||
seq("'", repeat(choice(/[^'\n]/, "''")), "'"),
|
||||
seq('"', repeat(choice(/[^"\n]/, '""')), '"')
|
||||
),
|
||||
|
||||
string_type: $ => seq(
|
||||
choice(alias('STRING', $.type_builtin), alias('String', $.type_builtin), alias('string', $.type_builtin), alias('WSTRING', $.type_builtin), alias('WString', $.type_builtin), alias('wstring', $.type_builtin)),
|
||||
optional(seq('[', $.number, ']'))
|
||||
),
|
||||
wstring_literal: $ => token(seq(
|
||||
choice(
|
||||
/[Ww][Ss][Tt][Rr][Ii][Nn][Gg]#/,
|
||||
/[Ss][Tt][Rr][Ii][Nn][Gg]#/
|
||||
),
|
||||
choice(
|
||||
seq("'", repeat(choice(/[^'\n]/, "''")), "'"),
|
||||
seq('"', repeat(choice(/[^"\n]/, '""')), '"')
|
||||
)
|
||||
)),
|
||||
|
||||
char_literal: $ => choice(
|
||||
seq("'", /[^']/, "'"),
|
||||
seq('WCHAR#', "'", /[^']/, "'")
|
||||
seq(/[Ww][Cc][Hh][Aa][Rr]#/, "'", /[^']/, "'"),
|
||||
seq('C#', "'", /[^']/, "'")
|
||||
),
|
||||
|
||||
|
||||
identifier: $ => /[a-zA-Z_][a-zA-Z0-9_]*/,
|
||||
|
||||
|
||||
line_comment: $ => token(seq('//', /.*/)),
|
||||
|
||||
|
||||
block_comment: $ => token(seq(
|
||||
'(*',
|
||||
repeat(choice(/[^*]/, seq('*', /[^)]/))),
|
||||
@@ -481,9 +664,12 @@ module.exports = grammar({
|
||||
'*/)'
|
||||
)),
|
||||
|
||||
exit_statement: $ => alias('EXIT', $.keyword),
|
||||
exit_statement: $ => alias(ci('EXIT'), $.keyword),
|
||||
|
||||
continue_statement: $ => alias(ci('CONTINUE'), $.keyword),
|
||||
|
||||
// UTF-8 BOM (Byte Order Mark) - consumed at start of file
|
||||
bom: $ => token('')
|
||||
|
||||
continue_statement: $ => alias('CONTINUE', $.keyword)
|
||||
|
||||
}
|
||||
});
|
||||
|
||||
Reference in New Issue
Block a user