ddehilster · Jul 26, 2026 · Jul 26, 2026
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -3,6 +3,12 @@ All notable changes to the [VSCode NLP++ extension](http://vscode.visualtext.org
 
 Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how to structure this file.
 
+### 3.11.12
+NLP++ math functions: `floor`, `ceiling`, `round` and friends.
+
+- The editor now knows the new engine math builtins — `floor`, `ceiling`, `round`, `truncate`, `sqrt`, `pow` and `log` — so they colorize as functions and offer completions and snippets.
+- Also registers `abs`, `mod` and `randomint`, which the engine has had for a while but which were never added to the grammar or language data (they had snippets but showed up unhighlighted).
+
 ### 3.11.11
 Parse-tree graphic: stagger overlapping labels at every level.
 

diff --git a/dist/extension.js b/dist/extension.js
diff --git a/dist/extension.js.map b/dist/extension.js.map
diff --git a/package.json b/package.json
@@ -3,7 +3,7 @@
     "displayName": "NLP",
     "description": "NLP++: the only computer programming language built for NLP — create and visually debug analyzers directly in VS Code.",
     "icon": "resources/NLPppLogo.png",
-    "version": "3.11.11",
+    "version": "3.11.12",
     "publisher": "dehilster",
     "enableApiProposals": false,
     "engines": {

diff --git a/snippets/nlp.json b/snippets/nlp.json
@@ -1,18 +1,67 @@
 {
+    "ceiling": {
+        "prefix": ["ceiling"],
+        "body": [
+            "ceiling(${1:numFlt})"
+        ],
+        "description": "Round a number up to the nearest whole number."
+    },
+    "floor": {
+        "prefix": ["floor"],
+        "body": [
+            "floor(${1:numFlt})"
+        ],
+        "description": "Round a number down to the nearest whole number."
+    },
+    "log": {
+        "prefix": ["log"],
+        "body": [
+            "log(${1:numFlt})"
+        ],
+        "description": "Compute the natural (base e) logarithm of a number."
+    },
     "N": {
         "prefix": ["N(\"$text\",1)"],
         "body": [
             "N(\"\\$text\",${1:1})"
         ],
         "description": "Node variable with $text value."
     },
+    "pow": {
+        "prefix": ["pow"],
+        "body": [
+            "pow(${1:baseFlt},${2:exponentFlt})"
+        ],
+        "description": "Raise a number to the given power."
+    },
+    "round": {
+        "prefix": ["round"],
+        "body": [
+            "round(${1:numFlt})"
+        ],
+        "description": "Round a number to the nearest whole number."
+    },
     "S": {
         "prefix": ["S(\"something\") = "],
         "body": [
             "S(\"${1:1}\") = "
         ],
         "description": "Suggested variable."
     },
+    "sqrt": {
+        "prefix": ["sqrt"],
+        "body": [
+            "sqrt(${1:numFlt})"
+        ],
+        "description": "Compute the square root of a number."
+    },
+    "truncate": {
+        "prefix": ["truncate"],
+        "body": [
+            "truncate(${1:numFlt})"
+        ],
+        "description": "Discard the fractional part of a number, rounding toward zero."
+    },
     "X": {
         "prefix": ["X(\"something\",1) = "],
         "body": [

diff --git a/src/language/nlpxxData.ts b/src/language/nlpxxData.ts
@@ -47,32 +47,32 @@ export const LETTER_FUNCTIONS: Record<string, string> = {
 
 // Built-in functions (grammar: entity.name.function.nlp). Transcribed verbatim.
 export const BUILTIN_FUNCTIONS: string[] = [
-	"addarg", "addattr", "addcnode", "addconcept", "addconval", "addnode",
+	"abs", "addarg", "addattr", "addcnode", "addconcept", "addconval", "addnode",
 	"addnumval", "addstmt", "addstrs", "addstrval", "addsval", "addword",
 	"arraylength", "attrchange", "attrexists", "attrname", "attrtype",
-	"attrvals", "attrwithval", "batchstart", "cap", "cbuf", "closefile",
+	"attrvals", "attrwithval", "batchstart", "cap", "cbuf", "ceiling", "closefile",
 	"conceptname", "conceptpath", "conval", "cout", "coutreset", "dballocstmt",
 	"dbbindcol", "dbclose", "dbexec", "dbexecstmt", "dbfetch", "dbfreestmt",
 	"dbopen", "deaccent", "debug", "dictfindword", "dictfirst", "dictgetword",
 	"dictnext", "down", "else", "eltnode", "excise", "exitpass", "exittopopup",
 	"factorial", "fail", "fileout", "findana", "findattr", "findattrs",
 	"findconcept", "findhierconcept", "findnode", "findphrase", "findroot",
-	"findvals", "findwordpath", "firstnode", "flt", "fltval", "fncallstart",
+	"findvals", "findwordpath", "firstnode", "floor", "flt", "fltval", "fncallstart",
 	"fprintgvar", "fprintnvar", "fprintxvar", "fprintvar", "gdump", "getconcept",
 	"getconval", "getnumval", "getpopupdata", "getstrval", "getsval", "ginc",
 	"gp", "group", "gtolower", "guniq", "hitconf", "if", "inc", "inheritval",
 	"inputrange", "inputrangetofile", "interactive", "kbdumptree", "lasteltnode",
 	"lastnode", "length", "lengthr", "levenshtein", "lextagger", "listadd",
-	"listnode", "LJ", "lj", "logten", "lookup", "lowercase", "makeconcept",
+	"listnode", "LJ", "lj", "log", "logten", "lookup", "lowercase", "makeconcept",
 	"makeparentconcept", "makephrase", "makestmt", "merge", "merger", "mkdir",
-	"movecleft", "movecright", "movesem", "ndump", "next", "nextattr", "nextval",
+	"mod", "movecleft", "movecright", "movesem", "ndump", "next", "nextattr", "nextval",
 	"ninc", "nodeconcept", "nodeowner", "noop", "num", "numrange", "numval",
 	"openfile", "or", "pathconcept", "percentstr", "permuten", "phraselength",
 	"phraseraw", "phrasetext", "pncopyvars", "pndown", "pninsert", "pnmakevar",
 	"pnname", "pnnext", "pnprev", "pnreplaceval", "pnroot", "pnsingletdown",
-	"pnup", "pnvar", "pnvarnames", "pranchor", "prchild", "preaction",
+	"pnup", "pnvar", "pnvarnames", "pow", "pranchor", "prchild", "preaction",
 	"printvar", "pndeletechilds", "pnrename", "prev", "print", "printr", "prlit",
-	"prrange", "prtree", "prunephrases", "prxtree", "regexp", "regexpi",
+	"prrange", "prtree", "prunephrases", "prxtree", "randomint", "regexp", "regexpi",
 	"renameattr", "renamechild", "renameconcept", "renamenode", "replaceval",
 	"resolveurl", "return", "returnstmt", "rfaaction", "rfaactions", "rfaarg",
 	"rfaargtolist", "rfacode", "rfaelement", "rfaelt", "rfaexpr", "rfalist",
@@ -83,18 +83,18 @@ export const BUILTIN_FUNCTIONS: string[] = [
 	"rfarules", "rfarulesfile", "rfaselect", "rfastr", "rfasugg", "rfaunary",
 	"rfavar", "rfbarg", "rfbdecl", "rfbdecls", "rightjustifynum", "rmattr",
 	"rmattrs", "rmattrval", "rmchild", "rmchildren", "rmconcept", "rmcphrase",
-	"rmnode", "rmphrase", "rmval", "rmvals", "rmword", "sdump", "setbase",
+	"rmnode", "rmphrase", "rmval", "rmvals", "rmword", "round", "sdump", "setbase",
 	"setlookahead", "setunsealed", "single", "singler", "singlex", "singlezap",
 	"sortconsbyattr", "sortchilds", "sorthier", "sortphrase", "sortvals",
 	"spellcandidates", "spellcorrect", "spellword", "splice", "split", "sqlstr",
-	"startout", "stem", "stopout", "str", "strchar", "strchr", "strchrcount",
+	"sqrt", "startout", "stem", "stopout", "str", "strchar", "strchr", "strchrcount",
 	"strclean", "strcontains", "strcontainsnocase", "strendswith", "strequal",
 	"strequalnocase", "strescape", "strunescape", "strgreaterthan", "strisalpha",
 	"strisdigit", "strislower", "strisupper", "strlength", "strlessthan",
 	"strnotequal", "strnotequalnocase", "strpiece", "strrchr",
 	"strspellcandidate", "strspellcompare", "strstartswith", "strsubst",
 	"strtolower", "strtotitle", "strtoupper", "strtrim", "strval", "strwrap",
-	"succeed", "suffix", "system", "take", "today", "topdir", "unknown",
+	"succeed", "suffix", "system", "take", "today", "topdir", "truncate", "unknown",
 	"unpackdirs", "up", "uppercase", "urlbase", "urltofile", "var", "vareq",
 	"varfn", "varfnarray", "varinlist", "varne", "varstrs", "varz", "wninit",
 	"wnsensestoconcept", "wnhypnymstoconcept", "while", "whilestmt", "wordindex",

diff --git a/syntaxes/nlp.tmLanguage.json b/syntaxes/nlp.tmLanguage.json
@@ -48,7 +48,7 @@
         },
         "functions": {
             "name": "entity.name.function.nlp",
-            "match": "\\b(?i:(addarg|addattr|addcnode|addconcept|addconval|addnode|addnumval|addstmt|addstrs|addstrval|addsval|addword|arraylength|attrchange|attrexists|attrname|attrtype|attrvals|attrwithval|batchstart|cap|cbuf|closefile|conceptname|conceptpath|conval|cout|coutreset|dballocstmt|dbbindcol|dbclose|dbexec|dbexecstmt|dbfetch|dbfreestmt|dbopen|deaccent|debug|dictfindword|dictfirst|dictgetword|dictnext|down|else|eltnode|excise|exitpass|exittopopup|factorial|fail|fileout|findana|findattr|findattrs|findconcept|findhierconcept|findnode|findphrase|findroot|findvals|findwordpath|firstnode|flt|fltval|fncallstart|fprintgvar|fprintnvar|fprintxvar|fprintvar|gdump|getconcept|getconval|getnumval|getpopupdata|getstrval|getsval|ginc|gp|group|gtolower|guniq|hitconf|if|inc|inheritval|inputrange|inputrangetofile|interactive|kbdumptree|lasteltnode|lastnode|length|lengthr|levenshtein|lextagger|listadd|listnode|LJ|lj|logten|lookup|lowercase|makeconcept|makeparentconcept|makephrase|makestmt|merge|merger|mkdir|movecleft|movecright|movesem|ndump|next|nextattr|nextval|ninc|nodeconcept|nodeowner|noop|num|numrange|numval|openfile|or|pathconcept|percentstr|permuten|phraselength|phraseraw|phrasetext|pncopyvars|pndown|pninsert|pnmakevar|pnname|pnnext|pnprev|pnreplaceval|pnroot|pnsingletdown|pnup|pnvar|pnvarnames|pranchor|prchild|preaction|printvar|pndeletechilds|pnrename|prev|print|printr|prlit|prrange|prtree|prunephrases|prxtree|regexp|regexpi|renameattr|renamechild|renameconcept|renamenode|replaceval|resolveurl|return|returnstmt|rfaaction|rfaactions|rfaarg|rfaargtolist|rfacode|rfaelement|rfaelt|rfaexpr|rfalist|rfalitelt|rfalittoaction|rfalittopair|rfaname|rfanodes|rfanonlit|rfanonlitelt|rfanum|rfaop|rfapair|rfapairs|rfapostunary|rfapres|rfarange|rfarecurse|rfarecurses|rfaregion|rfaregions|rfarule|rfarulelts|rfarulemark|rfarules|rfarulesfile|rfaselect|rfastr|rfasugg|rfaunary|rfavar|rfbarg|rfbdecl|rfbdecls|rightjustifynum|rmattr|rmattrs|rmattrval|rmchild|rmchildren|rmconcept|rmcphrase|rmnode|rmphrase|rmval|rmvals|rmword|sdump|setbase|setlookahead|setunsealed|single|singler|singlex|singlezap|sortconsbyattr|sortchilds|sorthier|sortphrase|sortvals|spellcandidates|spellcorrect|spellword|splice|split|sqlstr|startout|stem|stopout|str|strchar|strchr|strchrcount|strclean|strcontains|strcontainsnocase|strendswith|strequal|strequalnocase|strescape|strunescape|strgreaterthan|strisalpha|strisdigit|strislower|strisupper|strlength|strlessthan|strnotequal|strnotequalnocase|strpiece|strrchr|strspellcandidate|strspellcompare|strstartswith|strsubst|strtolower|strtotitle|strtoupper|strtrim|strval|strwrap|succeed|suffix|system|take|today|topdir|unknown|unpackdirs|up|uppercase|urlbase|urltofile|var|vareq|varfn|varfnarray|varinlist|varne|varstrs|varz|wninit|wnsensestoconcept|wnhypnymstoconcept|while|whilestmt|wordindex|wordpath|writekb|xaddlen|xaddnvar|xdump|xinc|xmlstr|xrename))\\b"
+            "match": "\\b(?i:(abs|addarg|addattr|addcnode|addconcept|addconval|addnode|addnumval|addstmt|addstrs|addstrval|addsval|addword|arraylength|attrchange|attrexists|attrname|attrtype|attrvals|attrwithval|batchstart|cap|cbuf|ceiling|closefile|conceptname|conceptpath|conval|cout|coutreset|dballocstmt|dbbindcol|dbclose|dbexec|dbexecstmt|dbfetch|dbfreestmt|dbopen|deaccent|debug|dictfindword|dictfirst|dictgetword|dictnext|down|else|eltnode|excise|exitpass|exittopopup|factorial|fail|fileout|findana|findattr|findattrs|findconcept|findhierconcept|findnode|findphrase|findroot|findvals|findwordpath|firstnode|floor|flt|fltval|fncallstart|fprintgvar|fprintnvar|fprintxvar|fprintvar|gdump|getconcept|getconval|getnumval|getpopupdata|getstrval|getsval|ginc|gp|group|gtolower|guniq|hitconf|if|inc|inheritval|inputrange|inputrangetofile|interactive|kbdumptree|lasteltnode|lastnode|length|lengthr|levenshtein|lextagger|listadd|listnode|LJ|lj|log|logten|lookup|lowercase|makeconcept|makeparentconcept|makephrase|makestmt|merge|merger|mkdir|mod|movecleft|movecright|movesem|ndump|next|nextattr|nextval|ninc|nodeconcept|nodeowner|noop|num|numrange|numval|openfile|or|pathconcept|percentstr|permuten|phraselength|phraseraw|phrasetext|pncopyvars|pndown|pninsert|pnmakevar|pnname|pnnext|pnprev|pnreplaceval|pnroot|pnsingletdown|pnup|pnvar|pnvarnames|pow|pranchor|prchild|preaction|printvar|pndeletechilds|pnrename|prev|print|printr|prlit|prrange|prtree|prunephrases|prxtree|randomint|regexp|regexpi|renameattr|renamechild|renameconcept|renamenode|replaceval|resolveurl|return|returnstmt|rfaaction|rfaactions|rfaarg|rfaargtolist|rfacode|rfaelement|rfaelt|rfaexpr|rfalist|rfalitelt|rfalittoaction|rfalittopair|rfaname|rfanodes|rfanonlit|rfanonlitelt|rfanum|rfaop|rfapair|rfapairs|rfapostunary|rfapres|rfarange|rfarecurse|rfarecurses|rfaregion|rfaregions|rfarule|rfarulelts|rfarulemark|rfarules|rfarulesfile|rfaselect|rfastr|rfasugg|rfaunary|rfavar|rfbarg|rfbdecl|rfbdecls|rightjustifynum|rmattr|rmattrs|rmattrval|rmchild|rmchildren|rmconcept|rmcphrase|rmnode|rmphrase|rmval|rmvals|rmword|round|sdump|setbase|setlookahead|setunsealed|single|singler|singlex|singlezap|sortconsbyattr|sortchilds|sorthier|sortphrase|sortvals|spellcandidates|spellcorrect|spellword|splice|split|sqlstr|sqrt|startout|stem|stopout|str|strchar|strchr|strchrcount|strclean|strcontains|strcontainsnocase|strendswith|strequal|strequalnocase|strescape|strunescape|strgreaterthan|strisalpha|strisdigit|strislower|strisupper|strlength|strlessthan|strnotequal|strnotequalnocase|strpiece|strrchr|strspellcandidate|strspellcompare|strstartswith|strsubst|strtolower|strtotitle|strtoupper|strtrim|strval|strwrap|succeed|suffix|system|take|today|topdir|truncate|unknown|unpackdirs|up|uppercase|urlbase|urltofile|var|vareq|varfn|varfnarray|varinlist|varne|varstrs|varz|wninit|wnsensestoconcept|wnhypnymstoconcept|while|whilestmt|wordindex|wordpath|writekb|xaddlen|xaddnvar|xdump|xinc|xmlstr|xrename))\\b"
         },
         "expression": {
             "name": "meta.expression.nlp",