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//
//
// The Nimrod Compiler
// (c) Copyright 2008 Andreas Rumpf
//
// See the file "copying.txt", included in this
// distribution, for details about the copyright.
//
unit wordrecg;
// This module contains a word recognizer, i.e. a simple
// procedure which maps special words to an enumeration.
// It is primarily needed because Pascal's case statement
// does not support strings. Without this the code would
// be slow and unreadable.
interface
{$include 'config.inc'}
uses
nsystem, hashes, strutils, idents;
type
TSpecialWord = (wInvalid,
// these are mapped to Nimrod keywords:
//[[[cog
//from string import split, capitalize
//keywords = split(open("data/keywords.txt").read())
//idents = ""
//strings = ""
//i = 1
//for k in keywords:
// idents = idents + "w" + capitalize(k) + ", "
// strings = strings + "'" + k + "', "
// if i % 4 == 0:
// idents = idents + "\n"
// strings = strings + "\n"
// i = i + 1
//cog.out(idents)
//]]]
wAddr, wAnd, wAs, wAsm,
wBlock, wBreak, wCase, wCast,
wConst, wContinue, wConverter, wDiscard,
wDiv, wElif, wElse, wEnd,
wEnum, wExcept, wException, wFinally,
wFor, wFrom, wGeneric, wIf,
wImplies, wImport, wIn, wInclude,
wIs, wIsnot, wIterator, wLambda,
wMacro, wMethod, wMod, wNil,
wNot, wNotin, wObject, wOf,
wOr, wOut, wProc, wPtr,
wRaise, wRef, wReturn, wShl,
wShr, wTemplate, wTry, wTuple,
wType, wVar, wWhen, wWhere,
wWhile, wWith, wWithout, wXor,
wYield,
//[[[end]]]
// other special tokens:
wColon, wEquals, wDot, wDotDot, wHat,
wStar, wMinus,
// pragmas and command line options:
wMagic, wTypeCheck, wFinal, wProfiler,
wObjChecks, wImportc, wExportc, wAlign, wNodecl, wPure,
wVolatile, wRegister, wNostatic, wHeader, wNosideeffect, wNoreturn,
wMerge, wLib, wDynlib, wCompilerproc, wCppmethod, wFatal,
wError, wWarning, wHint, wLine, wPush, wPop,
wDefine, wUndef, wLinedir, wStacktrace, wLinetrace, wPragma,
wLink, wCompile, wLinksys, wFixupsystem, wDeprecated, wVarargs,
wByref, wCallconv, wBreakpoint, wDebugger, wNimcall, wStdcall,
wCdecl, wSafecall, wSyscall, wInline, wNoInline, wFastcall, wClosure,
wNoconv, wOn, wOff, wChecks, wRangechecks, wBoundchecks,
wOverflowchecks, wNilchecks, wAssertions, wWarnings, wW, wHints,
wOptimization, wSpeed, wSize, wNone, wPath, wP,
wD, wU, wDebuginfo, wCompileonly, wNolinking, wForcebuild,
wF, wDeadCodeElim, wSafecode, wCompileTime,
wGc, wRefc, wBoehm, wA, wOpt, wO,
wApp, wConsole, wGui, wPassc, wT, wPassl,
wL, wListcmd, wGendoc, wGenmapping,
wOs, wCpu, wGenerate, wG, wC, wCpp,
wYaml, wRun, wR, wVerbosity, wV, wHelp,
wH, wSymbolFiles, wFieldChecks, wX, wVersion, wAdvanced,
wSkipcfg, wSkipProjCfg, wCc, wGenscript, wCheckPoint, wCheckPoints,
wMaxErr, wExpr, wStmt, wTypeDesc,
wSubsChar, wAstCache, wAcyclic, wIndex,
// commands:
wCompileToC, wCompileToCpp, wCompileToEcmaScript,
wPretty, wDoc, wPas,
wGenDepend, wListDef, wCheck, wParse, wScan, wBoot, wLazy,
wRst2html, wI,
// special for the preprocessor of configuration files:
wWrite, wPutEnv, wPrependEnv, wAppendEnv,
// additional Pascal keywords:
wArray, wBegin, wClass,
wConstructor, wDestructor, wDo, wDownto,
wExports, wFinalization, wFunction, wGoto,
wImplementation, wInherited, wInitialization, wInterface,
wLabel, wLibrary, wPacked,
wProcedure, wProgram, wProperty, wRecord, wRepeat, wResourcestring,
wSet, wThen, wThreadvar, wTo, wUnit, wUntil,
wUses,
// Pascal special tokens:
wExternal, wOverload, wFar, wAssembler, wForward, wIfdef, wIfndef,
wEndif
);
TSpecialWords = set of TSpecialWord;
const
oprLow = ord(wColon);
oprHigh = ord(wHat);
specialWords: array [low(TSpecialWord)..high(TSpecialWord)]
of string = ('',
// keywords:
//[[[cog
//cog.out(strings)
//]]]
'addr', 'and', 'as', 'asm',
'block', 'break', 'case', 'cast',
'const', 'continue', 'converter', 'discard',
'div', 'elif', 'else', 'end',
'enum', 'except', 'exception', 'finally',
'for', 'from', 'generic', 'if',
'implies', 'import', 'in', 'include',
'is', 'isnot', 'iterator', 'lambda',
'macro', 'method', 'mod', 'nil',
'not', 'notin', 'object', 'of',
'or', 'out', 'proc', 'ptr',
'raise', 'ref', 'return', 'shl',
'shr', 'template', 'try', 'tuple',
'type', 'var', 'when', 'where',
'while', 'with', 'without', 'xor',
'yield',
//[[[end]]]
// other special tokens:
':'+'', '='+'', '.'+'', '..', '^'+'',
'*'+'', '-'+'',
// pragmas and command line options:
'magic', 'typecheck', 'final', 'profiler',
'objchecks', 'importc', 'exportc', 'align', 'nodecl', 'pure',
'volatile', 'register', 'nostatic', 'header', 'nosideeffect', 'noreturn',
'merge', 'lib', 'dynlib', 'compilerproc', 'cppmethod', 'fatal',
'error', 'warning', 'hint', 'line', 'push', 'pop',
'define', 'undef', 'linedir', 'stacktrace', 'linetrace', 'pragma',
'link', 'compile', 'linksys', 'fixupsystem', 'deprecated', 'varargs',
'byref', 'callconv', 'breakpoint', 'debugger', 'nimcall', 'stdcall',
'cdecl', 'safecall', 'syscall', 'inline', 'noinline', 'fastcall', 'closure',
'noconv', 'on', 'off', 'checks', 'rangechecks', 'boundchecks',
'overflowchecks', 'nilchecks', 'assertions', 'warnings', 'w'+'', 'hints',
'optimization', 'speed', 'size', 'none', 'path', 'p'+'',
'd'+'', 'u'+'', 'debuginfo', 'compileonly', 'nolinking', 'forcebuild',
'f'+'', 'deadcodeelim', 'safecode', 'compiletime',
'gc', 'refc', 'boehm', 'a'+'', 'opt', 'o'+'',
'app', 'console', 'gui', 'passc', 't'+'', 'passl',
'l'+'', 'listcmd', 'gendoc', 'genmapping',
'os', 'cpu', 'generate', 'g'+'', 'c'+'', 'cpp',
'yaml', 'run', 'r'+'', 'verbosity', 'v'+'', 'help',
'h'+'', 'symbolfiles', 'fieldchecks', 'x'+'', 'version', 'advanced',
'skipcfg', 'skipprojcfg', 'cc', 'genscript', 'checkpoint', 'checkpoints',
'maxerr', 'expr', 'stmt', 'typedesc',
'subschar', 'astcache', 'acyclic', 'index',
// commands:
'compiletoc', 'compiletocpp', 'compiletoecmascript',
'pretty', 'doc', 'pas', 'gendepend', 'listdef', 'check', 'parse',
'scan', 'boot', 'lazy', 'rst2html', 'i'+'',
// special for the preprocessor of configuration files:
'write', 'putenv', 'prependenv', 'appendenv',
'array', 'begin', 'class',
'constructor', 'destructor', 'do', 'downto',
'exports', 'finalization', 'function', 'goto',
'implementation', 'inherited', 'initialization', 'interface',
'label', 'library', 'packed',
'procedure', 'program', 'property', 'record', 'repeat', 'resourcestring',
'set', 'then', 'threadvar', 'to', 'unit', 'until',
'uses',
// Pascal special tokens
'external', 'overload', 'far', 'assembler', 'forward', 'ifdef', 'ifndef',
'endif'
);
function whichKeyword(id: PIdent): TSpecialWord; overload;
function whichKeyword(const id: String): TSpecialWord; overload;
function findStr(const a: array of string; const s: string): int;
implementation
function findStr(const a: array of string; const s: string): int;
var
i: int;
begin
for i := low(a) to high(a) do
if cmpIgnoreStyle(a[i], s) = 0 then begin result := i; exit end;
result := -1;
end;
function whichKeyword(const id: String): TSpecialWord; overload;
begin
result := whichKeyword(getIdent(id))
end;
function whichKeyword(id: PIdent): TSpecialWord; overload;
begin
if id.id < 0 then result := wInvalid
else result := TSpecialWord(id.id);
end;
procedure initSpecials();
var
s: TSpecialWord;
begin
// initialize the keywords:
for s := succ(low(specialWords)) to high(specialWords) do
getIdent(specialWords[s],
getNormalizedHash(specialWords[s])).id := ord(s)
end;
initialization
initSpecials();
end.
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