1{2 local std = self,3 local id = std.id,45 6 length:: $intrinsic(length),7 type:: $intrinsic(type),8 makeArray:: $intrinsic(makeArray),9 codepoint:: $intrinsic(codepoint),10 objectFieldsEx:: $intrinsic(objectFieldsEx),11 objectHasEx:: $intrinsic(objectHasEx),12 primitiveEquals:: $intrinsic(primitiveEquals),13 modulo:: $intrinsic(modulo),14 floor:: $intrinsic(floor),15 log:: $intrinsic(log),16 pow:: $intrinsic(pow),17 extVar:: $intrinsic(extVar),18 native:: $intrinsic(native),19 filter:: $intrinsic(filter),20 char:: $intrinsic(char),21 encodeUTF8:: $intrinsic(encodeUTF8),22 md5:: $intrinsic(md5),23 trace:: $intrinsic(trace),24 id:: $intrinsic(id),25 parseJson:: $intrinsic(parseJson),2627 isString(v):: std.type(v) == 'string',28 isNumber(v):: std.type(v) == 'number',29 isBoolean(v):: std.type(v) == 'boolean',30 isObject(v):: std.type(v) == 'object',31 isArray(v):: std.type(v) == 'array',32 isFunction(v):: std.type(v) == 'function',3334 toString(a)::35 if std.type(a) == 'string' then a else '' + a,3637 substr(str, from, len)::38 assert std.isString(str) : 'substr first parameter should be a string, got ' + std.type(str);39 assert std.isNumber(from) : 'substr second parameter should be a string, got ' + std.type(from);40 assert std.isNumber(len) : 'substr third parameter should be a string, got ' + std.type(len);41 assert len >= 0 : 'substr third parameter should be greater than zero, got ' + len;42 std.join('', std.makeArray(std.max(0, std.min(len, std.length(str) - from)), function(i) str[i + from])),4344 startsWith(a, b)::45 if std.length(a) < std.length(b) then46 false47 else48 std.substr(a, 0, std.length(b)) == b,4950 endsWith(a, b)::51 if std.length(a) < std.length(b) then52 false53 else54 std.substr(a, std.length(a) - std.length(b), std.length(b)) == b,5556 lstripChars(str, chars)::57 if std.length(str) > 0 && std.member(chars, str[0]) then58 std.lstripChars(str[1:], chars)59 else60 str,6162 rstripChars(str, chars)::63 local len = std.length(str);64 if len > 0 && std.member(chars, str[len - 1]) then65 std.rstripChars(str[:len - 1], chars)66 else67 str,6869 stripChars(str, chars)::70 std.lstripChars(std.rstripChars(str, chars), chars),7172 stringChars(str)::73 std.makeArray(std.length(str), function(i) str[i]),7475 local parse_nat(str, base) =76 assert base > 0 && base <= 16 : 'integer base %d invalid' % base;77 78 local zero_code = std.codepoint('0');79 local upper_a_code = std.codepoint('A');80 local lower_a_code = std.codepoint('a');81 local addDigit(aggregate, char) =82 local code = std.codepoint(char);83 local digit = if code >= lower_a_code then84 code - lower_a_code + 1085 else if code >= upper_a_code then86 code - upper_a_code + 1087 else88 code - zero_code;89 assert digit >= 0 && digit < base : '%s is not a base %d integer' % [str, base];90 base * aggregate + digit;91 std.foldl(addDigit, std.stringChars(str), 0),9293 parseInt(str)::94 assert std.isString(str) : 'Expected string, got ' + std.type(str);95 assert std.length(str) > 0 && str != '-' : 'Not an integer: "%s"' % [str];96 if str[0] == '-' then97 -parse_nat(str[1:], 10)98 else99 parse_nat(str, 10),100101 parseOctal(str)::102 assert std.isString(str) : 'Expected string, got ' + std.type(str);103 assert std.length(str) > 0 : 'Not an octal number: ""';104 parse_nat(str, 8),105106 parseHex(str)::107 assert std.isString(str) : 'Expected string, got ' + std.type(str);108 assert std.length(str) > 0 : 'Not hexadecimal: ""';109 parse_nat(str, 16),110111 split(str, c)::112 assert std.isString(str) : 'std.split first parameter should be a string, got ' + std.type(str);113 assert std.isString(c) : 'std.split second parameter should be a string, got ' + std.type(c);114 assert std.length(c) == 1 : 'std.split second parameter should have length 1, got ' + std.length(c);115 std.splitLimit(str, c, -1),116117 splitLimit(str, c, maxsplits)::118 assert std.isString(str) : 'std.splitLimit first parameter should be a string, got ' + std.type(str);119 assert std.isString(c) : 'std.splitLimit second parameter should be a string, got ' + std.type(c);120 assert std.length(c) == 1 : 'std.splitLimit second parameter should have length 1, got ' + std.length(c);121 assert std.isNumber(maxsplits) : 'std.splitLimit third parameter should be a number, got ' + std.type(maxsplits);122 local aux(str, delim, i, arr, v) =123 local c = str[i];124 local i2 = i + 1;125 if i >= std.length(str) then126 arr + [v]127 else if c == delim && (maxsplits == -1 || std.length(arr) < maxsplits) then128 aux(str, delim, i2, arr + [v], '') tailstrict129 else130 aux(str, delim, i2, arr, v + c) tailstrict;131 aux(str, c, 0, [], ''),132133 strReplace:: $intrinsic(strReplace),134135 asciiUpper(str)::136 local cp = std.codepoint;137 local up_letter(c) = if cp(c) >= 97 && cp(c) < 123 then138 std.char(cp(c) - 32)139 else140 c;141 std.join('', std.map(up_letter, std.stringChars(str))),142143 asciiLower(str)::144 local cp = std.codepoint;145 local down_letter(c) = if cp(c) >= 65 && cp(c) < 91 then146 std.char(cp(c) + 32)147 else148 c;149 std.join('', std.map(down_letter, std.stringChars(str))),150151 range:: $intrinsic(range),152153 repeat(what, count)::154 local joiner =155 if std.isString(what) then ''156 else if std.isArray(what) then []157 else error 'std.repeat first argument must be an array or a string';158 std.join(joiner, std.makeArray(count, function(i) what)),159160 slice:: $intrinsic(slice),161162 member(arr, x)::163 if std.isArray(arr) then164 std.count(arr, x) > 0165 else if std.isString(arr) then166 std.length(std.findSubstr(x, arr)) > 0167 else error 'std.member first argument must be an array or a string',168169 count(arr, x):: std.length(std.filter(function(v) v == x, arr)),170171 mod:: $intrinsic(mod),172173 map:: $intrinsic(map),174175 mapWithIndex(func, arr)::176 if !std.isFunction(func) then177 error ('std.mapWithIndex first param must be function, got ' + std.type(func))178 else if !std.isArray(arr) && !std.isString(arr) then179 error ('std.mapWithIndex second param must be array, got ' + std.type(arr))180 else181 std.makeArray(std.length(arr), function(i) func(i, arr[i])),182183 mapWithKey(func, obj)::184 if !std.isFunction(func) then185 error ('std.mapWithKey first param must be function, got ' + std.type(func))186 else if !std.isObject(obj) then187 error ('std.mapWithKey second param must be object, got ' + std.type(obj))188 else189 { [k]: func(k, obj[k]) for k in std.objectFields(obj) },190191 flatMap:: $intrinsic(flatMap),192193 join:: $intrinsic(join),194195 lines(arr)::196 std.join('\n', arr + ['']),197198 deepJoin(arr)::199 if std.isString(arr) then200 arr201 else if std.isArray(arr) then202 std.join('', [std.deepJoin(x) for x in arr])203 else204 error 'Expected string or array, got %s' % std.type(arr),205206207 format:: $intrinsic(format),208209 foldr:: $intrinsic(foldr),210211 foldl:: $intrinsic(foldl),212213 filterMap(filter_func, map_func, arr)::214 if !std.isFunction(filter_func) then215 error ('std.filterMap first param must be function, got ' + std.type(filter_func))216 else if !std.isFunction(map_func) then217 error ('std.filterMap second param must be function, got ' + std.type(map_func))218 else if !std.isArray(arr) then219 error ('std.filterMap third param must be array, got ' + std.type(arr))220 else221 std.map(map_func, std.filter(filter_func, arr)),222223 assertEqual(a, b)::224 if a == b then225 true226 else227 error 'Assertion failed. ' + a + ' != ' + b,228229 abs(n)::230 if !std.isNumber(n) then231 error 'std.abs expected number, got ' + std.type(n)232 else233 if n > 0 then n else -n,234235 sign(n)::236 if !std.isNumber(n) then237 error 'std.sign expected number, got ' + std.type(n)238 else239 if n > 0 then240 1241 else if n < 0 then242 -1243 else 0,244245 max(a, b)::246 if !std.isNumber(a) then247 error 'std.max first param expected number, got ' + std.type(a)248 else if !std.isNumber(b) then249 error 'std.max second param expected number, got ' + std.type(b)250 else251 if a > b then a else b,252253 min(a, b)::254 if !std.isNumber(a) then255 error 'std.min first param expected number, got ' + std.type(a)256 else if !std.isNumber(b) then257 error 'std.min second param expected number, got ' + std.type(b)258 else259 if a < b then a else b,260261 clamp(x, minVal, maxVal)::262 if x < minVal then minVal263 else if x > maxVal then maxVal264 else x,265266 flattenArrays(arrs)::267 std.foldl(function(a, b) a + b, arrs, []),268269 manifestIni(ini)::270 local body_lines(body) =271 std.join([], [272 local value_or_values = body[k];273 if std.isArray(value_or_values) then274 ['%s = %s' % [k, value] for value in value_or_values]275 else276 ['%s = %s' % [k, value_or_values]]277278 for k in std.objectFields(body)279 ]);280281 local section_lines(sname, sbody) = ['[%s]' % [sname]] + body_lines(sbody),282 main_body = if std.objectHas(ini, 'main') then body_lines(ini.main) else [],283 all_sections = [284 section_lines(k, ini.sections[k])285 for k in std.objectFields(ini.sections)286 ];287 std.join('\n', main_body + std.flattenArrays(all_sections) + ['']),288289 manifestToml(value):: std.manifestTomlEx(value, ' '),290291 manifestTomlEx(value, indent)::292 local293 escapeStringToml = std.escapeStringJson,294 escapeKeyToml(key) =295 local bare_allowed = std.set(std.stringChars('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-'));296 if std.setUnion(std.set(std.stringChars(key)), bare_allowed) == bare_allowed then key else escapeStringToml(key),297 isTableArray(v) = std.isArray(v) && std.length(v) > 0 && std.foldl(function(a, b) a && std.isObject(b), v, true),298 isSection(v) = std.isObject(v) || isTableArray(v),299 renderValue(v, indexedPath, inline, cindent) =300 if v == true then301 'true'302 else if v == false then303 'false'304 else if v == null then305 error 'Tried to manifest "null" at ' + indexedPath306 else if std.isNumber(v) then307 '' + v308 else if std.isString(v) then309 escapeStringToml(v)310 else if std.isFunction(v) then311 error 'Tried to manifest function at ' + indexedPath312 else if std.isArray(v) then313 if std.length(v) == 0 then314 '[]'315 else316 local range = std.range(0, std.length(v) - 1);317 local new_indent = if inline then '' else cindent + indent;318 local separator = if inline then ' ' else '\n';319 local lines = ['[' + separator]320 + std.join([',' + separator],321 [322 [new_indent + renderValue(v[i], indexedPath + [i], true, '')]323 for i in range324 ])325 + [separator + (if inline then '' else cindent) + ']'];326 std.join('', lines)327 else if std.isObject(v) then328 local lines = ['{ ']329 + std.join([', '],330 [331 [escapeKeyToml(k) + ' = ' + renderValue(v[k], indexedPath + [k], true, '')]332 for k in std.objectFields(v)333 ])334 + [' }'];335 std.join('', lines),336 renderTableInternal(v, path, indexedPath, cindent) =337 local kvp = std.flattenArrays([338 [cindent + escapeKeyToml(k) + ' = ' + renderValue(v[k], indexedPath + [k], false, cindent)]339 for k in std.objectFields(v)340 if !isSection(v[k])341 ]);342 local sections = [std.join('\n', kvp)] + [343 (344 if std.isObject(v[k]) then345 renderTable(v[k], path + [k], indexedPath + [k], cindent)346 else347 renderTableArray(v[k], path + [k], indexedPath + [k], cindent)348 )349 for k in std.objectFields(v)350 if isSection(v[k])351 ];352 std.join('\n\n', sections),353 renderTable(v, path, indexedPath, cindent) =354 cindent + '[' + std.join('.', std.map(escapeKeyToml, path)) + ']'355 + (if v == {} then '' else '\n')356 + renderTableInternal(v, path, indexedPath, cindent + indent),357 renderTableArray(v, path, indexedPath, cindent) =358 local range = std.range(0, std.length(v) - 1);359 local sections = [360 (cindent + '[[' + std.join('.', std.map(escapeKeyToml, path)) + ']]'361 + (if v[i] == {} then '' else '\n')362 + renderTableInternal(v[i], path, indexedPath + [i], cindent + indent))363 for i in range364 ];365 std.join('\n\n', sections);366 if std.isObject(value) then367 renderTableInternal(value, [], [], '')368 else369 error 'TOML body must be an object. Got ' + std.type(value),370371 escapeStringJson:: $intrinsic(escapeStringJson),372373 escapeStringPython(str)::374 std.escapeStringJson(str),375376 escapeStringBash(str_)::377 local str = std.toString(str_);378 local trans(ch) =379 if ch == "'" then380 "'\"'\"'"381 else382 ch;383 "'%s'" % std.join('', [trans(ch) for ch in std.stringChars(str)]),384385 escapeStringDollars(str_)::386 local str = std.toString(str_);387 local trans(ch) =388 if ch == '$' then389 '$$'390 else391 ch;392 std.foldl(function(a, b) a + trans(b), std.stringChars(str), ''),393394 manifestJson(value):: std.manifestJsonEx(value, ' '),395396 manifestJsonEx:: $intrinsic(manifestJsonEx),397398 manifestYamlDoc(value, indent_array_in_object=false)::399 local aux(v, path, cindent) =400 if v == true then401 'true'402 else if v == false then403 'false'404 else if v == null then405 'null'406 else if std.isNumber(v) then407 '' + v408 else if std.isString(v) then409 local len = std.length(v);410 if len == 0 then411 '""'412 else if v[len - 1] == '\n' then413 local split = std.split(v, '\n');414 std.join('\n' + cindent + ' ', ['|'] + split[0:std.length(split) - 1])415 else416 std.escapeStringJson(v)417 else if std.isFunction(v) then418 error 'Tried to manifest function at ' + path419 else if std.isArray(v) then420 if std.length(v) == 0 then421 '[]'422 else423 local params(value) =424 if std.isArray(value) && std.length(value) > 0 then {425 426 427 428 429 430 431 new_indent: cindent + ' ',432 space: '\n' + self.new_indent,433 } else if std.isObject(value) && std.length(value) > 0 then {434 new_indent: cindent + ' ',435 436 437 438 space: ' ',439 } else {440 441 new_indent: cindent,442 space: ' ',443 };444 local range = std.range(0, std.length(v) - 1);445 local parts = [446 '-' + param.space + aux(v[i], path + [i], param.new_indent)447 for i in range448 for param in [params(v[i])]449 ];450 std.join('\n' + cindent, parts)451 else if std.isObject(v) then452 if std.length(v) == 0 then453 '{}'454 else455 local params(value) =456 if std.isArray(value) && std.length(value) > 0 then {457 458 459 460 461 462 463 new_indent: if indent_array_in_object then cindent + ' ' else cindent,464 space: '\n' + self.new_indent,465 } else if std.isObject(value) && std.length(value) > 0 then {466 new_indent: cindent + ' ',467 space: '\n' + self.new_indent,468 } else {469 470 new_indent: cindent,471 space: ' ',472 };473 local lines = [474 std.escapeStringJson(k) + ':' + param.space + aux(v[k], path + [k], param.new_indent)475 for k in std.objectFields(v)476 for param in [params(v[k])]477 ];478 std.join('\n' + cindent, lines);479 aux(value, [], ''),480481 manifestYamlStream(value, indent_array_in_object=false, c_document_end=true)::482 if !std.isArray(value) then483 error 'manifestYamlStream only takes arrays, got ' + std.type(value)484 else485 '---\n' + std.join(486 '\n---\n', [std.manifestYamlDoc(e, indent_array_in_object) for e in value]487 ) + if c_document_end then '\n...\n' else '\n',488489490 manifestPython(v)::491 if std.isObject(v) then492 local fields = [493 '%s: %s' % [std.escapeStringPython(k), std.manifestPython(v[k])]494 for k in std.objectFields(v)495 ];496 '{%s}' % [std.join(', ', fields)]497 else if std.isArray(v) then498 '[%s]' % [std.join(', ', [std.manifestPython(v2) for v2 in v])]499 else if std.isString(v) then500 '%s' % [std.escapeStringPython(v)]501 else if std.isFunction(v) then502 error 'cannot manifest function'503 else if std.isNumber(v) then504 std.toString(v)505 else if v == true then506 'True'507 else if v == false then508 'False'509 else if v == null then510 'None',511512 manifestPythonVars(conf)::513 local vars = ['%s = %s' % [k, std.manifestPython(conf[k])] for k in std.objectFields(conf)];514 std.join('\n', vars + ['']),515516 manifestXmlJsonml(value)::517 if !std.isArray(value) then518 error 'Expected a JSONML value (an array), got %s' % std.type(value)519 else520 local aux(v) =521 if std.isString(v) then522 v523 else524 local tag = v[0];525 local has_attrs = std.length(v) > 1 && std.isObject(v[1]);526 local attrs = if has_attrs then v[1] else {};527 local children = if has_attrs then v[2:] else v[1:];528 local attrs_str =529 std.join('', [' %s="%s"' % [k, attrs[k]] for k in std.objectFields(attrs)]);530 std.deepJoin(['<', tag, attrs_str, '>', [aux(x) for x in children], '</', tag, '>']);531532 aux(value),533534 local base64_table = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/',535 local base64_inv = { [base64_table[i]]: i for i in std.range(0, 63) },536537 base64:: $intrinsic(base64),538539 base64DecodeBytes(str)::540 if std.length(str) % 4 != 0 then541 error 'Not a base64 encoded string "%s"' % str542 else543 local aux(str, i, r) =544 if i >= std.length(str) then545 r546 else547 548 local n1 = [base64_inv[str[i]] << 2 | (base64_inv[str[i + 1]] >> 4)];549 550 local n2 =551 if str[i + 2] == '=' then []552 else [(base64_inv[str[i + 1]] & 15) << 4 | (base64_inv[str[i + 2]] >> 2)];553 554 local n3 =555 if str[i + 3] == '=' then []556 else [(base64_inv[str[i + 2]] & 3) << 6 | base64_inv[str[i + 3]]];557 aux(str, i + 4, r + n1 + n2 + n3) tailstrict;558 aux(str, 0, []),559560 base64Decode(str)::561 local bytes = std.base64DecodeBytes(str);562 std.join('', std.map(function(b) std.char(b), bytes)),563564 reverse:: $intrinsic(reverse),565566 sortImpl:: $intrinsic(sortImpl),567568 sort(arr, keyF=id)::569 std.sortImpl(arr, keyF),570571 uniq(arr, keyF=id)::572 local f(a, b) =573 if std.length(a) == 0 then574 [b]575 else if keyF(a[std.length(a) - 1]) == keyF(b) then576 a577 else578 a + [b];579 std.foldl(f, arr, []),580581 set(arr, keyF=id)::582 std.uniq(std.sort(arr, keyF), keyF),583584 setMember(x, arr, keyF=id)::585 586 std.length(std.setInter([x], arr, keyF)) > 0,587588 setUnion(a, b, keyF=id)::589 590 local aux(a, b, i, j, acc) =591 if i >= std.length(a) then592 acc + b[j:]593 else if j >= std.length(b) then594 acc + a[i:]595 else596 local ak = keyF(a[i]);597 local bk = keyF(b[j]);598 if ak == bk then599 aux(a, b, i + 1, j + 1, acc + [a[i]]) tailstrict600 else if ak < bk then601 aux(a, b, i + 1, j, acc + [a[i]]) tailstrict602 else603 aux(a, b, i, j + 1, acc + [b[j]]) tailstrict;604 aux(a, b, 0, 0, []),605606 setInter(a, b, keyF=id)::607 local aux(a, b, i, j, acc) =608 if i >= std.length(a) || j >= std.length(b) then609 acc610 else611 if keyF(a[i]) == keyF(b[j]) then612 aux(a, b, i + 1, j + 1, acc + [a[i]]) tailstrict613 else if keyF(a[i]) < keyF(b[j]) then614 aux(a, b, i + 1, j, acc) tailstrict615 else616 aux(a, b, i, j + 1, acc) tailstrict;617 aux(a, b, 0, 0, []) tailstrict,618619 setDiff(a, b, keyF=id)::620 local aux(a, b, i, j, acc) =621 if i >= std.length(a) then622 acc623 else if j >= std.length(b) then624 acc + a[i:]625 else626 if keyF(a[i]) == keyF(b[j]) then627 aux(a, b, i + 1, j + 1, acc) tailstrict628 else if keyF(a[i]) < keyF(b[j]) then629 aux(a, b, i + 1, j, acc + [a[i]]) tailstrict630 else631 aux(a, b, i, j + 1, acc) tailstrict;632 aux(a, b, 0, 0, []) tailstrict,633634 mergePatch(target, patch)::635 if std.isObject(patch) then636 local target_object =637 if std.isObject(target) then target else {};638639 local target_fields =640 if std.isObject(target_object) then std.objectFields(target_object) else [];641642 local null_fields = [k for k in std.objectFields(patch) if patch[k] == null];643 local both_fields = std.setUnion(target_fields, std.objectFields(patch));644645 {646 [k]:647 if !std.objectHas(patch, k) then648 target_object[k]649 else if !std.objectHas(target_object, k) then650 std.mergePatch(null, patch[k]) tailstrict651 else652 std.mergePatch(target_object[k], patch[k]) tailstrict653 for k in std.setDiff(both_fields, null_fields)654 }655 else656 patch,657658 objectFields(o)::659 std.objectFieldsEx(o, false),660661 objectFieldsAll(o)::662 std.objectFieldsEx(o, true),663664 objectHas(o, f)::665 std.objectHasEx(o, f, false),666667 objectHasAll(o, f)::668 std.objectHasEx(o, f, true),669670 objectValues(o)::671 [o[k] for k in std.objectFields(o)],672673 objectValuesAll(o)::674 [o[k] for k in std.objectFieldsAll(o)],675676 equals:: $intrinsic(equals),677678 resolvePath(f, r)::679 local arr = std.split(f, '/');680 std.join('/', std.makeArray(std.length(arr) - 1, function(i) arr[i]) + [r]),681682 prune(a)::683 local isContent(b) =684 if b == null then685 false686 else if std.isArray(b) then687 std.length(b) > 0688 else if std.isObject(b) then689 std.length(b) > 0690 else691 true;692 if std.isArray(a) then693 [std.prune(x) for x in a if isContent($.prune(x))]694 else if std.isObject(a) then {695 [x]: $.prune(a[x])696 for x in std.objectFields(a)697 if isContent(std.prune(a[x]))698 } else699 a,700701 findSubstr(pat, str)::702 if !std.isString(pat) then703 error 'findSubstr first parameter should be a string, got ' + std.type(pat)704 else if !std.isString(str) then705 error 'findSubstr second parameter should be a string, got ' + std.type(str)706 else707 local pat_len = std.length(pat);708 local str_len = std.length(str);709 if pat_len == 0 || str_len == 0 || pat_len > str_len then710 []711 else712 std.filter(function(i) str[i:i + pat_len] == pat, std.range(0, str_len - pat_len)),713714 find(value, arr)::715 if !std.isArray(arr) then716 error 'find second parameter should be an array, got ' + std.type(arr)717 else718 std.filter(function(i) arr[i] == value, std.range(0, std.length(arr) - 1)),719}