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SerhioromanoSerhioromano
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Added support for Structured Text (IEC 61131-3) (#2311)
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10 files changed

+136
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‎components.js

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‎components.json

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"title": "Icon",
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"owner": "Golmote"
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},
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"iecst": {
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"title": "Structured Text (IEC 61131-3)",
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"owner": "serhioromano"
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},
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"inform7": {
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"title": "Inform 7",
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"owner": "Golmote"

‎components/prism-iecst.js

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Prism.languages.iecst = {
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'comment': [
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{
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pattern: /(^|[^\\])(?:\/\*[\s\S]*?(?:\*\/|$)|\(\*[\s\S]*?(?:\*\)|$)|\{[\s\S]*?(?:\}|$))/,
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lookbehind: true,
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},
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{
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pattern: /(^|[^\\:])\/\/.*/,
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lookbehind: true,
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greedy: true,
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},
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],
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'string': {
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pattern: /(["'])(?:\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/,
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greedy: true,
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},
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'class-name': /\b(?:END_)?(?:PROGRAM|CONFIGURATION|INTERFACE|FUNCTION_BLOCK|FUNCTION|ACTION|TRANSITION|TYPE|STRUCT|(?:INITIAL_)?STEP|NAMESPACE|LIBRARY|CHANNEL|FOLDER|RESOURCE|VAR_(?:GLOBAL|INPUT|PUTPUT|IN_OUT|ACCESS|TEMP|EXTERNAL|CONFIG)|VAR|METHOD|PROPERTY)\b/i,
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'keyword': /\b(?:(?:END_)?(?:IF|WHILE|REPEAT|CASE|FOR)|ELSE|FROM|THEN|ELSIF|DO|TO|BY|PRIVATE|PUBLIC|PROTECTED|CONSTANT|RETURN|EXIT|CONTINUE|GOTO|JMP|AT|RETAIN|NON_RETAIN|TASK|WITH|UNTIL|USING|EXTENDS|IMPLEMENTS|GET|SET|__TRY|__CATCH|__FINALLY|__ENDTRY)\b/,
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'variable': /\b(?:AT|BOOL|BYTE|(?:D|L)?WORD|U?(?:S|D|L)?INT|L?REAL|TIME(?:_OF_DAY)?|TOD|DT|DATE(?:_AND_TIME)?|STRING|ARRAY|ANY|POINTER)\b/,
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'symbol': /%[IQM][XBWDL][\d.]*|%[IQ][\d.]*/,
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'number': /\b(?:16#[\da-f]+|2#[01_]+|0x[\da-f]+)\b|\b(?:T|D|DT|TOD)#[\d_shmd:]*|\b[A-Z]*\#[\d.,_]*|(?:\b\d+\.?\d*|\B\.\d+)(?:e[+-]?\d+)?/i,
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'boolean': /\b(?:TRUE|FALSE|NULL)\b/,
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'function': /\w+(?=\()/,
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'operator': /(?:S?R?:?=>?|&&?|\*\*?|<=?|>=?|[-:^/+])|\b(?:OR|AND|MOD|NOT|XOR|LE|GE|EQ|NE|GE|LT)\b/,
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'punctuation': /[();]/,
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'type': {
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'pattern': /#/,
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'alias': 'selector',
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},
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};

‎components/prism-iecst.min.js

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‎examples/prism-iecst.html

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<h2>Code</h2>
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<pre><code>
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CONFIGURATION DefaultCfg
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VAR_GLOBAL
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Start_Stop AT %IX0.0: BOOL; (* This is a comment *)
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END_VAR
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TASK NewTask (INTERVAL := T#20ms);
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PROGRAM Main WITH NewTask : PLC_PRG;
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END_CONFIGURATION
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PROGRAM demo
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VAR_EXTERNAL
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Start_Stop: BOOL;
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StringVar: STRING[250] := "Test String"
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END_VAR
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VAR
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a : REAL; // Another comment
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todTest: TIME_OF_DAY := TOD#12:55;
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END_VAR
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a := csq(12.5);
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IF a > REAL#100 - 16#FAC0 + 2#1001_0110 THEN
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Start_Stop := TRUE;
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END_IF
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END_PROGRAM;
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FUNCTION_BLOCK PRIVATE MyName EXTENDS AnotherName
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END_FUNCTION_BLOCK
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/* Get a square of the circle */
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FUNCTION csq : REAL
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VAR_INPUT
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r: REAL;
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END_VAR
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VAR CONSTANT
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c_pi: REAL := 3.14;
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END_VAR
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csq := ABS(c_pi * (r * 2));
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END_FUNCTION
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</code></pre>

‎plugins/show-language/prism-show-language.js

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"hpkp": "HTTP Public-Key-Pins",
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"hsts": "HTTP Strict-Transport-Security",
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"ichigojam": "IchigoJam",
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"iecst": "Structured Text (IEC 61131-3)",
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"inform7": "Inform 7",
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"javadoc": "JavaDoc",
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"javadoclike": "JavaDoc-like",

‎plugins/show-language/prism-show-language.min.js

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‎tests/languages/iecst/block.test

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csq := ABS(c_pi * (r * 2));
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----------------------------------------------------
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[
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"csq ",
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["operator", ":="],
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["function", "ABS"],
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["punctuation", "("],
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"c_pi ",
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["operator", "*"],
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["punctuation", "("],
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"r ",
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["operator", "*"],
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["number", "2"],
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["punctuation", ")"],
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["punctuation", ")"],
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["punctuation", ";"]
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]
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----------------------------------------------------
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Checks expression.

‎tests/languages/iecst/number.test

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a := 100
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----------------------------------------------------
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[
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"a ",
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["operator", ":="],
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["number", "100"]
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]
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----------------------------------------------------
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Checks number.

‎tests/languages/iecst/symbol.test

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VAR
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varname AT %QX1.0.0: BOOL := TRUE;
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END_VAR
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----------------------------------------------------
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[
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["class-name", "VAR"],
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"\n varname ",
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["keyword", "AT"],
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["symbol", "%QX1.0.0"],
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["operator", ":"],
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["variable", "BOOL"],
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["operator", ":="],
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["boolean", "TRUE"],
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["punctuation", ";"],
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["class-name", "END_VAR"]
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]
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----------------------------------------------------
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Checks symbols.

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