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🐐 QVAERE

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NikolajDanger
2026-04-22 09:08:36 +02:00
parent ebea9f942b
commit b9a1ed1bcc
12 changed files with 84 additions and 281 deletions
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24
README.md
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@@ -349,6 +349,11 @@ Returns the type of `value` as a string: `NVMERVS` (integer), `LITTERA` (string)
Sleeps for `n` seconds, where `n` is an integer, fraction, or NVLLVS (treated as 0). Returns nothing meaningful. Sleeps for `n` seconds, where `n` is an integer, fraction, or NVLLVS (treated as 0). Returns nothing meaningful.
### QVAERE
`QVAERE(pattern, string)`
Returns an array of all non-overlapping matches of the regex `pattern` in `string`. Both arguments must be strings. Patterns use extended regular expression syntax. Returns an empty array if there are no matches. Raises an error if the pattern is invalid.
## Modules ## Modules
Modules are additions to the base `CENTVRION` syntax. They add or change certain features. Modules are included in your code by having Modules are additions to the base `CENTVRION` syntax. They add or change certain features. Modules are included in your code by having
@@ -361,15 +366,15 @@ Vnlike many other programming languages with modules, the modules in `CENTVRION`
### FORS ### FORS
![CVM FORS](snippets/fors.png) ![CVM FORS](snippets/fors.png)
The `FORS` module allows you to add randomness to your `CENTVRION` program. It adds 4 new built-in functions: `FORTVITVS_NVMERVS int int`, `FORTVITA_ELECTIO ['a]`, `DECIMATIO ['a]`, and `SEMEN int`. The `FORS` module allows you to add randomness to your `CENTVRION` program. It adds 4 new built-in functions: `FORTVITVS_NVMERVS(int, int)`, `FORTVITA_ELECTIO(['a])`, `DECIMATIO(['a])`, and `SEMEN(int)`.
`FORTVITVS_NVMERVS int int` picks a random int in the (inclusive) range of the two given ints. `FORTVITVS_NVMERVS(int, int)` picks a random int in the (inclusive) range of the two given ints.
`FORTVITA_ELECTIO ['a]` picks a random element from the given array. `FORTVITA_ELECTIO array` is identical to ```array[FORTVITVS_NVMERVS NVLLVS ((LONGITVDO array)-I)]```. `FORTVITA_ELECTIO(['a])` picks a random element from the given array. `FORTVITA_ELECTIO(array)` is identical to ```array[FORTVITVS_NVMERVS NVLLVS ((LONGITVDO array)-I)]```.
`DECIMATIO ['a]` returns a copy of the given array with a random tenth of its elements removed. Arrays with fewer than 10 elements are returned unchanged. `DECIMATIO(['a])` returns a copy of the given array with a random tenth of its elements removed. Arrays with fewer than 10 elements are returned unchanged.
`SEMEN int` seeds the random number generator for reproducibility. `SEMEN(int)` seeds the random number generator for reproducibility.
### FRACTIO ### FRACTIO
![CVM FRACTIO](snippets/fractio.png) ![CVM FRACTIO](snippets/fractio.png)
@@ -394,14 +399,15 @@ When `_` is added _after_ a numeric symbol, the symbol becomes 1.000 times large
All integer symbols except `I` may be given a `_`. All integer symbols except `I` may be given a `_`.
### SCRIPTA ### SCRIPTA
![CVM SCRIPTA](snippets/scripta.png)
The `SCRIPTA` module adds file I/O to your `CENTVRION` program. It adds 3 new built-in functions: `LEGE string`, `SCRIBE string string`, and `ADIVNGE string string`. The `SCRIPTA` module adds file I/O to your `CENTVRION` program. It adds 3 new built-in functions: `LEGE`, `SCRIBE`, and `ADIVNGE`.
`LEGE string` reads the contents of the file at the given path and returns them as a string. `LEGE(string)` reads the contents of the file at the given path and returns them as a string.
`SCRIBE string string` writes the second argument to the file at the path given by the first argument, overwriting any existing content. `SCRIBE(string, string)` writes the second argument to the file at the path given by the first argument, overwriting any existing content.
`ADIVNGE string string` appends the second argument to the file at the path given by the first argument. `ADIVNGE(string, string)` appends the second argument to the file at the path given by the first argument.
### SVBNVLLA ### SVBNVLLA
![CVM SVBNVLLA](snippets/svbnvlla.png) ![CVM SVBNVLLA](snippets/svbnvlla.png)

13
centvrion/ast_nodes.py
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@@ -1277,6 +1277,19 @@ class BuiltIn(Node):
with open(path, "a") as f: with open(path, "a") as f:
f.write(content) f.write(content)
return vtable, ValNul() return vtable, ValNul()
case "QVAERE":
pattern = params[0]
text = params[1]
if not isinstance(pattern, ValStr) or not isinstance(text, ValStr):
raise CentvrionError("QVAERE requires two strings")
try:
matches = [
ValStr(m.group(0))
for m in re.finditer(pattern.value(), text.value())
]
except re.error as e:
raise CentvrionError(f"Invalid regex: {e}")
return vtable, ValList(matches)
case _: case _:
raise NotImplementedError(self.builtin) raise NotImplementedError(self.builtin)

3
centvrion/compiler/emit_expr.py
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@@ -297,6 +297,9 @@ def _emit_builtin(node, ctx):
lines.append(f"cent_adivnge({param_vars[0]}, {param_vars[1]});") lines.append(f"cent_adivnge({param_vars[0]}, {param_vars[1]});")
lines.append(f"CentValue {tmp} = cent_null();") lines.append(f"CentValue {tmp} = cent_null();")
case "QVAERE":
lines.append(f"CentValue {tmp} = cent_qvaere({param_vars[0]}, {param_vars[1]});")
case _: case _:
raise NotImplementedError(node.builtin) raise NotImplementedError(node.builtin)

32
centvrion/compiler/runtime/cent_runtime.c
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@@ -3,6 +3,7 @@
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <time.h> #include <time.h>
#include <regex.h>
/* ------------------------------------------------------------------ */ /* ------------------------------------------------------------------ */
/* Global arena */ /* Global arena */
@@ -870,6 +871,37 @@ CentValue cent_dict_keys(CentValue dict) {
return result; return result;
} }
/* ------------------------------------------------------------------ */
/* Regex */
/* ------------------------------------------------------------------ */
CentValue cent_qvaere(CentValue pattern, CentValue text) {
if (pattern.type != CENT_STR || text.type != CENT_STR)
cent_type_error("'QVAERE' requires two strings");
regex_t re;
int rc = regcomp(&re, pattern.sval, REG_EXTENDED);
if (rc != 0) {
char errbuf[256];
regerror(rc, &re, errbuf, sizeof(errbuf));
regfree(&re);
cent_runtime_error(errbuf);
}
CentValue result = cent_list_new(8);
const char *cursor = text.sval;
regmatch_t match;
while (*cursor && regexec(&re, cursor, 1, &match, 0) == 0) {
int len = match.rm_eo - match.rm_so;
char *buf = cent_arena_alloc(cent_arena, len + 1);
memcpy(buf, cursor + match.rm_so, len);
buf[len] = '\0';
cent_list_push(&result, cent_str(buf));
cursor += match.rm_eo;
if (len == 0) cursor++; // avoid infinite loop on zero-length match
}
regfree(&re);
return result;
}
/* ------------------------------------------------------------------ */ /* ------------------------------------------------------------------ */
/* Initialisation */ /* Initialisation */
/* ------------------------------------------------------------------ */ /* ------------------------------------------------------------------ */

1
centvrion/compiler/runtime/cent_runtime.h
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@@ -232,6 +232,7 @@ CentValue cent_ordina(CentValue lst); /* ORDINA */
CentValue cent_lege(CentValue path); /* LEGE */ CentValue cent_lege(CentValue path); /* LEGE */
void cent_scribe(CentValue path, CentValue content); /* SCRIBE */ void cent_scribe(CentValue path, CentValue content); /* SCRIBE */
void cent_adivnge(CentValue path, CentValue content); /* ADIVNGE */ void cent_adivnge(CentValue path, CentValue content); /* ADIVNGE */
CentValue cent_qvaere(CentValue pattern, CentValue text); /* QVAERE */
/* ------------------------------------------------------------------ */ /* ------------------------------------------------------------------ */
/* Array helpers */ /* Array helpers */

3
centvrion/lexer.py
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@@ -57,7 +57,8 @@ builtin_tokens = [("BUILTIN", i) for i in [
"TYPVS", "TYPVS",
"LEGE", "LEGE",
"SCRIBE", "SCRIBE",
"ADIVNGE" "ADIVNGE",
"QVAERE"
]] ]]
data_tokens = [ data_tokens = [

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CVM SCRIPTA

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17
tests.py
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@@ -606,6 +606,20 @@ builtin_tests = [
("TYPVS(FVNCTIO () VT { REDI(I) })", Program([], [ExpressionStatement(BuiltIn("TYPVS", [Fvnctio([], [Redi([Numeral("I")])])]))]), ValStr("FVNCTIO")), ("TYPVS(FVNCTIO () VT { REDI(I) })", Program([], [ExpressionStatement(BuiltIn("TYPVS", [Fvnctio([], [Redi([Numeral("I")])])]))]), ValStr("FVNCTIO")),
# TYPVS: null # TYPVS: null
("TYPVS(NVLLVS)", Program([], [ExpressionStatement(BuiltIn("TYPVS", [Nullus()]))]), ValStr("NVLLVS")), ("TYPVS(NVLLVS)", Program([], [ExpressionStatement(BuiltIn("TYPVS", [Nullus()]))]), ValStr("NVLLVS")),
# QVAERE: basic literal match
('QVAERE("ab", "abcabc")', Program([], [ExpressionStatement(BuiltIn("QVAERE", [String("ab"), String("abcabc")]))]), ValList([ValStr("ab"), ValStr("ab")])),
# QVAERE: no match → empty list
('QVAERE("xyz", "abc")', Program([], [ExpressionStatement(BuiltIn("QVAERE", [String("xyz"), String("abc")]))]), ValList([])),
# QVAERE: regex character class
('QVAERE("[a-z]+", "abc123def")', Program([], [ExpressionStatement(BuiltIn("QVAERE", [String("[a-z]+"), String("abc123def")]))]), ValList([ValStr("abc"), ValStr("def")])),
# QVAERE: empty text → empty list
('QVAERE("a", "")', Program([], [ExpressionStatement(BuiltIn("QVAERE", [String("a"), String("")]))]), ValList([])),
# QVAERE: capture groups still return full match
('QVAERE("(a)(b)", "ab")', Program([], [ExpressionStatement(BuiltIn("QVAERE", [String("(a)(b)"), String("ab")]))]), ValList([ValStr("ab")])),
# QVAERE: empty pattern matches between every character
('QVAERE("", "ab")', Program([], [ExpressionStatement(BuiltIn("QVAERE", [String(""), String("ab")]))]), ValList([ValStr(""), ValStr(""), ValStr("")])),
# QVAERE: dot matches any character
('QVAERE(".", "ab")', Program([], [ExpressionStatement(BuiltIn("QVAERE", [String("."), String("ab")]))]), ValList([ValStr("a"), ValStr("b")])),
] ]
class TestBuiltins(unittest.TestCase): class TestBuiltins(unittest.TestCase):
@@ -687,6 +701,9 @@ error_tests = [
("CVM FRACTIO\n[I, II, III][I VSQVE IIIS]", CentvrionError), # slice with fractional upper bound ("CVM FRACTIO\n[I, II, III][I VSQVE IIIS]", CentvrionError), # slice with fractional upper bound
("CVM FRACTIO\n[I, II, III][I / II VSQVE III]", CentvrionError), # slice with division-fraction lower bound ("CVM FRACTIO\n[I, II, III][I / II VSQVE III]", CentvrionError), # slice with division-fraction lower bound
("TEMPTA {\nDESIGNA x VT I / NVLLVS\n} CAPE e {\nDESIGNA y VT I / NVLLVS\n}", CentvrionError), # uncaught error in catch block propagates ("TEMPTA {\nDESIGNA x VT I / NVLLVS\n} CAPE e {\nDESIGNA y VT I / NVLLVS\n}", CentvrionError), # uncaught error in catch block propagates
('QVAERE(I, "abc")', CentvrionError), # QVAERE requires strings, not int
('QVAERE("abc", I)', CentvrionError), # QVAERE requires strings, not int
('QVAERE("[", "abc")', CentvrionError), # QVAERE invalid regex
] ]
class TestErrors(unittest.TestCase): class TestErrors(unittest.TestCase):