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HeidiSQL/components/synedit/Source/SynHighlighterCobol.pas
Ansgar Becker 1e94af8374 Issue #136: update SynEdit sources
2021-03-16 20:12:46 +01:00

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{-------------------------------------------------------------------------------
The contents of this file are subject to the Mozilla Public License
Version 1.1 (the "License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
the specific language governing rights and limitations under the License.
Code template generated with SynGen.
The original code is: SynHighlighterCobol.pas, released 2002-08-26.
Description: COBOL Syntax Parser/Highlighter
The author of this file is Andrey Ustinov.
Copyright (c) 2002 Software Mining, http://www.softwaremining.com/.
Unicode translation by Maël Hörz.
All rights reserved.
Contributors to the SynEdit and mwEdit projects are listed in the
Contributors.txt file.
Alternatively, the contents of this file may be used under the terms of the
GNU General Public License Version 2 or later (the "GPL"), in which case
the provisions of the GPL are applicable instead of those above.
If you wish to allow use of your version of this file only under the terms
of the GPL and not to allow others to use your version of this file
under the MPL, indicate your decision by deleting the provisions above and
replace them with the notice and other provisions required by the GPL.
If you do not delete the provisions above, a recipient may use your version
of this file under either the MPL or the GPL.
$Id: SynHighlighterCobol.pas,v 1.5.2.7 2008/09/14 16:24:59 maelh Exp $
You may retrieve the latest version of this file at the SynEdit home page,
located at http://SynEdit.SourceForge.net
-------------------------------------------------------------------------------}
unit SynHighlighterCobol;
{$I SynEdit.inc}
interface
uses
Graphics,
SynEditTypes,
SynEditHighlighter,
SynHighlighterHashEntries,
SynUnicode,
SysUtils,
Classes;
type
TtkTokenKind = (
tkComment,
tkIdentifier,
tkAIdentifier,
tkPreprocessor,
tkKey,
tkBoolean,
tkNull,
tkNumber,
tkSpace,
tkString,
tkSequence,
tkIndicator,
tkTagArea,
tkDebugLines,
tkUnknown);
TRangeState = (rsUnknown,
rsQuoteString, rsApostString,
rsPseudoText,
rsQuoteStringMayBe, rsApostStringMayBe);
type
TSynCobolSyn = class(TSynCustomHighlighter)
private
FRange: TRangeState;
FTokenID: TtkTokenKind;
FIndicator: WideChar;
FCodeStartPos: LongInt;
FCodeMediumPos: LongInt;
FCodeEndPos: LongInt;
FCommentAttri: TSynHighlighterAttributes;
FIdentifierAttri: TSynHighlighterAttributes;
FAIdentifierAttri: TSynHighlighterAttributes;
FPreprocessorAttri: TSynHighlighterAttributes;
FKeyAttri: TSynHighlighterAttributes;
FNumberAttri: TSynHighlighterAttributes;
FBooleanAttri: TSynHighlighterAttributes;
FSpaceAttri: TSynHighlighterAttributes;
FStringAttri: TSynHighlighterAttributes;
FSequenceAttri: TSynHighlighterAttributes;
FIndicatorAttri: TSynHighlighterAttributes;
FTagAreaAttri: TSynHighlighterAttributes;
FDebugLinesAttri: TSynHighlighterAttributes;
FKeywords: TSynHashEntryList;
procedure DoAddKeyword(AKeyword: UnicodeString; AKind: Integer);
function HashKey(Str: PWideChar): Integer;
function IdentKind(MayBe: PWideChar): TtkTokenKind;
procedure IdentProc;
procedure UnknownProc;
procedure NullProc;
procedure SpaceProc;
procedure CRProc;
procedure LFProc;
procedure NumberProc;
procedure PointProc;
procedure StringOpenProc;
procedure StringProc;
procedure StringEndProc;
procedure FirstCharsProc;
procedure LastCharsProc;
procedure CommentProc;
procedure DebugProc;
protected
function GetSampleSource: UnicodeString; override;
function IsFilterStored: Boolean; override;
procedure NextProcedure;
procedure SetCodeStartPos(Value: LongInt);
procedure SetCodeMediumPos(Value: LongInt);
procedure SetCodeEndPos(Value: LongInt);
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
class function GetLanguageName: string; override;
class function GetFriendlyLanguageName: UnicodeString; override;
function GetRange: Pointer; override;
procedure ResetRange; override;
procedure SetRange(Value: Pointer); override;
function GetDefaultAttribute(Index: Integer): TSynHighlighterAttributes; override;
function GetEol: Boolean; override;
function GetTokenID: TtkTokenKind;
function GetTokenAttribute: TSynHighlighterAttributes; override;
function GetTokenKind: Integer; override;
function IsIdentChar(AChar: WideChar): Boolean; override;
procedure Next; override;
published
property CommentAttri: TSynHighlighterAttributes read FCommentAttri write FCommentAttri;
property IdentifierAttri: TSynHighlighterAttributes read FIdentifierAttri write FIdentifierAttri;
property AreaAIdentifierAttri: TSynHighlighterAttributes read FAIdentifierAttri write FAIdentifierAttri;
property PreprocessorAttri: TSynHighlighterAttributes read FPreprocessorAttri write FPreprocessorAttri;
property KeyAttri: TSynHighlighterAttributes read FKeyAttri write FKeyAttri;
property NumberAttri: TSynHighlighterAttributes read FNumberAttri write FNumberAttri;
property BooleanAttri: TSynHighlighterAttributes read FBooleanAttri write FBooleanAttri;
property SpaceAttri: TSynHighlighterAttributes read FSpaceAttri write FSpaceAttri;
property StringAttri: TSynHighlighterAttributes read FStringAttri write FStringAttri;
property SequenceAttri: TSynHighlighterAttributes read FSequenceAttri write FSequenceAttri;
property IndicatorAttri: TSynHighlighterAttributes read FIndicatorAttri write FIndicatorAttri;
property TagAreaAttri: TSynHighlighterAttributes read FTagAreaAttri write FTagAreaAttri;
property DebugLinesAttri: TSynHighlighterAttributes read FDebugLinesAttri write FDebugLinesAttri;
property AreaAStartPos: LongInt read FCodeStartPos write SetCodeStartPos;
property AreaBStartPos: LongInt read FCodeMediumPos write SetCodeMediumPos;
property CodeEndPos: LongInt read FCodeEndPos write SetCodeEndPos;
end;
implementation
uses
SynEditStrConst;
const
BooleanWords: UnicodeString =
'false, true';
KeyWords: UnicodeString =
'accept, access, acquire, add, address, advancing, after, all, allowing, ' +
'alphabet, alphabetic, alphabetic-lower, alphabetic-upper, alphanumeric, ' +
'alphanumeric-edited, also, alter, alternate, and, any, apply, are, ' +
'area, areas, area-value, arithmetic, ascending, assign, at, author, ' +
'auto, automatic, auto-skip, background-color, background-colour, ' +
'backward, b-and, beep, before, beginning, bell, b-exor, binary, bit, ' +
'bits, blank, b-less, blink, block, b-not, boolean, b-or, bottom, by, ' +
'call, cancel, cd, cf, ch, chain, chaining, changed, character, ' +
'characters, class, clock-units, close, cobol, code, code-set, col, ' +
'collating, color, column, comma, command-line, commit, commitment, ' +
'common, communication, comp, comp-0, comp-1, comp-2, comp-3, comp-4, ' +
'comp-5, comp-6, comp-7, comp-8, comp-9, computational, computational-0, ' +
'computational-1, computational-2, computational-3, computational-4, ' +
'computational-5, computational-6, computational-7, computational-8, ' +
'computational-9, computational-x, compute, comp-x, com-reg, ' +
'configuration, connect, console, contained, contains, content, ' +
'continue, control-area, controls, converting, corr, corresponding, ' +
'count, crt, crt-under, currency, current, cursor, cycle, data, date, ' +
'date-compiled, date-written, day, day-of-week, db, ' +
'db-access-control-key, dbcs, db-data-name, db-exception, ' +
'db-format-name, db-record-name, db-set-name, db-status, de, ' +
'debug-contents, debugging, debug-item, debug-line, debug-name, ' +
'debug-sub-1, debug-sub-2, debug-sub-3, decimal-point, declaratives, ' +
'default, delimited, delimiter, depending, descending, destination, ' +
'detail, disable, disconnect, disk, display, display-1, display-2, ' +
'display-3, display-4, display-5, display-6, display-7, display-8, ' +
'display-9, divide, division, down, drop, duplicate, duplicates, ' +
'dynamic, egcs, egi, else, emi, empty, empty-check, enable, end, ' +
'end-accept, end-add, end-call, end-compute, end-delete, end-disable, ' +
'end-divide, end-enable, end-evaluate, end-if, ending, end-multiply, ' +
'end-of-page, end-perform, end-read, end-receive, end-return, ' +
'end-rewrite, end-search, end-send, end-start, end-string, end-subtract, ' +
'end-transceive, end-unstring, end-write, enter, entry, environment, ' +
'eop, equal, equals, erase, error, escape, esi, evaluate, every, exact, ' +
'exceeds, exception, excess-3, exclusive, exec, execute, exhibit, exit, ' +
'extend, external, externally-described-key, fd, fetch, file, ' +
'file-control, file-id, filler, final, find, finish, first, fixed, ' +
'footing, for, foreground-color, foreground-colour, form, format, free, ' +
'from, full, function, generate, get, giving, global, go, goback, ' +
'greater, group, heading, highlight, id, identification, if, in, index, ' +
'index-1, index-2, index-3, index-4, index-5, index-6, index-7, index-8, ' +
'index-9, indexed, indic, indicate, indicator, indicators, initial, ' +
'initialize, initiate, input, input-output, inspect, installation, into, ' +
'invalid, i-o, i-o-control, is, japanese, just, justified, kanji, keep, ' +
'kept, key, keyboard, last, ld, leading, left, left-justify, length, ' +
'length-check, less, like, limit, limits, linage, linage-counter, line, ' +
'line-counter, lines, linkage, locally, lock, manual, member, memory, ' +
'merge, message, mode, modified, modify, modules, more-labels, move, ' +
'multiple, multiply, name, native, negative, next, no, no-echo, none, ' +
'normal, not, number, numeric, numeric-edited, object-computer, occurs, ' +
'of, off, omitted, on, only, open, optional, or, order, organization, ' +
'other, output, overflow, owner, packed-decimal, padding, page, ' +
'page-counter, palette, paragraph, password, perform, pf, ph, pic, ' +
'picture, plus, pointer, position, positive, present, previous, printer, ' +
'printer-1, printing, print-switch, prior, procedure, procedures, ' +
'proceed, process, processing, program, program-id, prompt, protected, ' +
'purge, queue, random, range, rd, read, realm, receive, reconnect, ' +
'record, recording, record-name, records, redefines, reel, reference, ' +
'references, relation, relative, release, remainder, removal, renames, ' +
'repeated, replacing, report, reporting, reports, required, rerun, ' +
'reserve, retaining, retrieval, return, return-code, reversed, ' +
'reverse-video, rewind, rewrite, rf, rh, right, right-justify, rollback, ' +
'rolling, rounded, run, same, screen, sd, search, section, secure, ' +
'security, segment, segment-limit, select, send, sentence, separate, ' +
'sequence, sequential, session-id, set, shared, shift-in, shift-out, ' +
'sign, size, sort, sort-control, sort-core-size, sort-file-size, ' +
'sort-merge, sort-message, sort-mode-size, sort-return, source, ' +
'source-computer, space-fill, special-names, standard, standard-1, ' +
'standard-2, standard-3, standard-4, start, starting, status, stop, ' +
'store, string, subfile, subprogram, sub-queue-1, sub-queue-2, ' +
'sub-queue-3, sub-schema, subtract, sum, suppress, switch, switch-1, ' +
'switch-2, switch-3, switch-4, switch-5, switch-6, switch-7, switch-8, ' +
'symbolic, sync, synchronized, table, tally, tallying, tape, tenant, ' +
'terminal, terminate, test, text, than, then, through, thru, time, ' +
'timeout, times, to, top, trailing, trailing-sign, transaction, ' +
'transceive, type, underline, unequal, unit, unlock, unstring, until, ' +
'up, update, upon, usage, usage-mode, user, using, valid, validate, ' +
'value, values, variable, varying, wait, when, when-compiled, with, ' +
'within, words, working-storage, write, write-only, zero-fill';
PreprocessorWords: UnicodeString =
'basis, cbl, control, copy, delete, eject, insert, ready, reload, ' +
'replace, reset, service, skip1, skip2, skip3, title, trace, use';
StringWords: UnicodeString =
'high-value, high-values, low-value, low-values, null, nulls, quote, ' +
'quotes, space, spaces, zero, zeroes, zeros';
// Ambigious means that a simple string comparision is not enough
AmbigiousWords: UnicodeString =
'label';
const
StringChars: array[TRangeState] of WideChar = (#0, '"', '''', '=', '"', '''');
procedure TSynCobolSyn.DoAddKeyword(AKeyword: UnicodeString; AKind: Integer);
var
HashValue: Integer;
begin
HashValue := HashKey(PWideChar(AKeyword));
FKeywords[HashValue] := TSynHashEntry.Create(AKeyword, AKind);
end;
function TSynCobolSyn.HashKey(Str: PWideChar): Integer;
var
InternalRun: LongInt;
function GetOrd: Integer;
begin
case Str^ of
'a'..'z': Result := 1 + Ord(Str^) - Ord('a');
'A'..'Z': Result := 1 + Ord(Str^) - Ord('A');
'0'..'9': Result := 28 + Ord(Str^) - Ord('0');
'-': Result := 27;
else Result := 0;
end
end;
begin
InternalRun := Run;
Result := 0;
while IsIdentChar(Str^) and (InternalRun <= FCodeEndPos) do
begin
{$IFOPT Q-}
Result := 7 * Result + GetOrd;
{$ELSE}
Result := (7 * Result + GetOrd) and $FFFFFF;
{$ENDIF}
Inc(Str);
Inc(InternalRun);
end;
Result := Result and $FF; // 255
FStringLen := Str - FToIdent;
end;
function TSynCobolSyn.IdentKind(MayBe: PWideChar): TtkTokenKind;
var
Entry: TSynHashEntry;
I: Integer;
begin
FToIdent := MayBe;
Entry := FKeywords[HashKey(MayBe)];
while Assigned(Entry) do
begin
if Entry.KeywordLen > FStringLen then
Break
else if Entry.KeywordLen = FStringLen then
if IsCurrentToken(Entry.Keyword) then
begin
Result := TtkTokenKind(Entry.Kind);
if Result = tkUnknown then // handling of "ambigious" words
begin
if IsCurrentToken('label') then
begin
I := Run + Length('label');
while FLine[I] = ' ' do
Inc(I);
if (WStrLComp(PWideChar(@FLine[I]), 'record', Length('record')) = 0)
and (I + Length('record') - 1 <= FCodeEndPos) then
Result := tkKey
else
Result := tkPreprocessor;
end
else
Result := tkIdentifier;
end;
Exit;
end;
Entry := Entry.Next;
end;
Result := tkIdentifier;
end;
procedure TSynCobolSyn.SpaceProc;
begin
FTokenID := tkSpace;
repeat
Inc(Run);
until not CharInSet(FLine[Run], [#1..#32]);
end;
procedure TSynCobolSyn.FirstCharsProc;
var
I: Integer;
begin
if IsLineEnd(Run) then
NextProcedure
else if Run < FCodeStartPos - 1 then
begin
FTokenID := tkSequence;
repeat
Inc(Run);
until (Run = FCodeStartPos - 1) or IsLineEnd(Run);
end
else
begin
FTokenID := tkIndicator;
case FLine[Run] of
'*', '/', 'D', 'd': FIndicator := FLine[Run];
'-': if FRange in [rsQuoteStringMayBe, rsApostStringMayBe] then
begin
I := Run + 1;
while FLine[I] = ' ' do
Inc(I);
if (WStrLComp(PWideChar(@FLine[I]), PWideChar(UnicodeStringOfChar(StringChars[FRange], 2)), 2) <> 0)
or (I + 1 > FCodeEndPos) then
FRange := rsUnknown;
end;
end;
Inc(Run);
end;
end;
procedure TSynCobolSyn.LastCharsProc;
begin
if IsLineEnd(Run) then
NextProcedure
else
begin
FTokenID := tkTagArea;
repeat
Inc(Run);
until IsLineEnd(Run);
end;
end;
procedure TSynCobolSyn.CommentProc;
begin
FIndicator := #0;
if IsLineEnd(Run) then
NextProcedure
else
begin
FTokenID := tkComment;
repeat
Inc(Run);
until IsLineEnd(Run) or (Run > FCodeEndPos);
end;
end;
procedure TSynCobolSyn.DebugProc;
begin
FIndicator := #0;
if IsLineEnd(Run) then
NextProcedure
else
begin
FTokenID := tkDebugLines;
repeat
Inc(Run);
until IsLineEnd(Run) or (Run > FCodeEndPos);
end;
end;
procedure TSynCobolSyn.PointProc;
begin
if (Run < FCodeEndPos) and CharInSet(FLine[Run + 1], ['0'..'9', 'e', 'E']) then
NumberProc
else
UnknownProc;
end;
procedure TSynCobolSyn.NumberProc;
function IsNumberChar: Boolean;
begin
case FLine[Run] of
'0'..'9', '.', 'e', 'E', '-', '+':
Result := True;
else
Result := False;
end;
end;
var
fFloat: Boolean;
begin
FTokenID := tkNumber;
Inc(Run);
fFloat := False;
while IsNumberChar and (Run <= FCodeEndPos) do
begin
case FLine[Run] of
'.':
if not CharInSet(FLine[Run + 1], ['0'..'9', 'e', 'E']) then
Break
else
fFloat := True;
'e', 'E':
if not CharInSet(FLine[Run - 1], ['0'..'9', '.']) then
Break
else fFloat := True;
'-', '+':
begin
if not fFloat or not CharInSet(FLine[Run - 1], ['e', 'E']) then
Break;
end;
end;
Inc(Run);
end;
end;
procedure TSynCobolSyn.NullProc;
begin
FTokenID := tkNull;
Inc(Run);
end;
procedure TSynCobolSyn.CRProc;
begin
FTokenID := tkSpace;
Inc(Run);
if FLine[Run] = #10 then
Inc(Run);
end;
procedure TSynCobolSyn.LFProc;
begin
FTokenID := tkSpace;
Inc(Run);
end;
procedure TSynCobolSyn.StringOpenProc;
begin
case FLine[Run] of
'"': FRange := rsQuoteString;
'''': FRange := rsApostString;
else
if FLine[Run + 1] = '=' then
begin
FRange := rsPseudoText;
Inc(Run);
end
else
begin
UnknownProc;
Exit;
end;
end;
Inc(Run);
StringProc;
FTokenID := tkString;
end;
procedure TSynCobolSyn.StringProc;
begin
FTokenID := tkString;
if Run <= FCodeEndPos then
repeat
if (FLine[Run] = StringChars[FRange])
and ((FLine[Run] <> '=') or ((Run > 0) and (FLine[Run - 1] = '='))) then
begin
if (Run = FCodeEndPos) and (FRange in [rsQuoteString, rsApostString]) then
Inc(FRange, 3)
else
FRange := rsUnknown;
Inc(Run);
Break;
end;
if not IsLineEnd(Run) then
Inc(Run);
until IsLineEnd(Run) or (Run > FCodeEndPos);
end;
procedure TSynCobolSyn.StringEndProc;
begin
if IsLineEnd(Run) then
NextProcedure
else
begin
FTokenID := tkString;
if (FRange <> rsPseudoText) and (Run <= FCodeEndPos) then
repeat
if (FLine[Run] = StringChars[FRange]) then
begin
if FRange in [rsQuoteString, rsApostString] then
Inc(Run)
else
begin
Inc(Run, 2);
Dec(FRange, 3);
end;
Break;
end;
Inc(Run);
until IsLineEnd(Run) or (Run > FCodeEndPos);
StringProc;
end;
end;
constructor TSynCobolSyn.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
FCaseSensitive := False;
FKeywords := TSynHashEntryList.Create;
FCommentAttri := TSynHighLighterAttributes.Create(SYNS_AttrComment, SYNS_FriendlyAttrComment);
FCommentAttri.Style := [fsItalic];
FCommentAttri.Foreground := clGray;
AddAttribute(FCommentAttri);
FIdentifierAttri := TSynHighLighterAttributes.Create(SYNS_AttrIdentifier, SYNS_FriendlyAttrIdentifier);
AddAttribute(FIdentifierAttri);
FAIdentifierAttri := TSynHighLighterAttributes.Create(SYNS_AttrAreaAIdentifier, SYNS_FriendlyAttrAreaAIdentifier);
FAIdentifierAttri.Foreground := clTeal;
FAIdentifierAttri.Style := [fsBold];
AddAttribute(FAIdentifierAttri);
FPreprocessorAttri := TSynHighLighterAttributes.Create(SYNS_AttrPreprocessor, SYNS_FriendlyAttrPreprocessor);
FPreprocessorAttri.Foreground := clMaroon;
AddAttribute(FPreprocessorAttri);
FKeyAttri := TSynHighLighterAttributes.Create(SYNS_AttrReservedWord, SYNS_FriendlyAttrReservedWord);
FKeyAttri.Style := [fsBold];
AddAttribute(FKeyAttri);
FNumberAttri := TSynHighLighterAttributes.Create(SYNS_AttrNumber, SYNS_FriendlyAttrNumber);
FNumberAttri.Foreground := clGreen;
AddAttribute(FNumberAttri);
FBooleanAttri := TSynHighLighterAttributes.Create(SYNS_AttrBoolean, SYNS_FriendlyAttrBoolean);
FBooleanAttri.Foreground := clGreen;
AddAttribute(FBooleanAttri);
FSpaceAttri := TSynHighLighterAttributes.Create(SYNS_AttrSpace, SYNS_FriendlyAttrSpace);
AddAttribute(FSpaceAttri);
FStringAttri := TSynHighLighterAttributes.Create(SYNS_AttrString, SYNS_FriendlyAttrString);
FStringAttri.Foreground := clBlue;
AddAttribute(FStringAttri);
FSequenceAttri := TSynHighLighterAttributes.Create(SYNS_AttrSequence, SYNS_FriendlyAttrSequence);
FSequenceAttri.Foreground := clDkGray;
AddAttribute(FSequenceAttri);
FIndicatorAttri := TSynHighLighterAttributes.Create(SYNS_AttrIndicator, SYNS_FriendlyAttrIndicator);
FIndicatorAttri.Foreground := clRed;
AddAttribute(FIndicatorAttri);
FTagAreaAttri := TSynHighLighterAttributes.Create(SYNS_AttrTagArea, SYNS_FriendlyAttrTagArea);
FTagAreaAttri.Foreground := clMaroon;
AddAttribute(FTagAreaAttri);
FDebugLinesAttri := TSynHighLighterAttributes.Create(SYNS_AttrDebugLines, SYNS_FriendlyAttrDebugLines);
FDebugLinesAttri.Foreground := clDkGray;
AddAttribute(FDebugLinesAttri);
SetAttributesOnChange(DefHighlightChange);
FDefaultFilter := SYNS_FilterCOBOL;
FRange := rsUnknown;
FIndicator := #0;
FCodeStartPos := 7;
FCodeMediumPos := 11;
FCodeEndPos := 71;
EnumerateKeywords(Ord(tkBoolean), BooleanWords, IsIdentChar, DoAddKeyword);
EnumerateKeywords(Ord(tkKey), KeyWords, IsIdentChar, DoAddKeyword);
EnumerateKeywords(Ord(tkPreprocessor), PreprocessorWords, IsIdentChar, DoAddKeyword);
EnumerateKeywords(Ord(tkString), StringWords, IsIdentChar, DoAddKeyword);
EnumerateKeywords(Ord(tkUnknown), AmbigiousWords, IsIdentChar, DoAddKeyword);
end;
destructor TSynCobolSyn.Destroy;
begin
FKeywords.Free;
inherited Destroy;
end;
procedure TSynCobolSyn.IdentProc;
begin
if CharInSet(FLine[Run], ['x', 'g', 'X', 'G'])
and (Run < FCodeEndPos) and CharInSet(FLine[Run + 1], ['"', '''']) then
begin
Inc(Run);
StringOpenProc;
end
else
begin
FTokenID := IdentKind((FLine + Run));
if (FTokenID = tkIdentifier) and (Run < FCodeMediumPos) then
FTokenID := tkAIdentifier;
Inc(Run, FStringLen);
while IsIdentChar(FLine[Run]) and (Run <= FCodeEndPos) do
Inc(Run);
end;
end;
procedure TSynCobolSyn.UnknownProc;
begin
Inc(Run);
FTokenID := tkUnknown;
end;
procedure TSynCobolSyn.Next;
begin
FTokenPos := Run;
if FTokenPos < FCodeStartPos then
FirstCharsProc
else
case FIndicator of
'*', '/': CommentProc;
'D', 'd': DebugProc;
else
if FTokenPos > FCodeEndPos then
LastCharsProc
else
case FRange of
rsQuoteString..rsApostStringMayBe: StringEndProc;
else
begin
FRange := rsUnknown;
NextProcedure;
end;
end;
end;
inherited;
end;
procedure TSynCobolSyn.NextProcedure;
begin
case FLine[Run] of
#0: NullProc;
#10: LFProc;
#13: CRProc;
'"': StringOpenProc;
'''': StringOpenProc;
'=': StringOpenProc;
#1..#9, #11, #12, #14..#32: SpaceProc;
'.': PointProc;
'0'..'9': NumberProc;
'A'..'Z', 'a'..'z': IdentProc;
else UnknownProc;
end;
end;
function TSynCobolSyn.GetDefaultAttribute(Index: Integer): TSynHighLighterAttributes;
begin
case Index of
SYN_ATTR_COMMENT: Result := FCommentAttri;
SYN_ATTR_IDENTIFIER: Result := FIdentifierAttri;
SYN_ATTR_KEYWORD: Result := FKeyAttri;
SYN_ATTR_STRING: Result := FStringAttri;
SYN_ATTR_WHITESPACE: Result := FSpaceAttri;
else
Result := nil;
end;
end;
function TSynCobolSyn.GetEol: Boolean;
begin
Result := Run = FLineLen + 1;
end;
function TSynCobolSyn.GetTokenID: TtkTokenKind;
begin
Result := FTokenID;
end;
function TSynCobolSyn.GetTokenAttribute: TSynHighLighterAttributes;
begin
case GetTokenID of
tkComment: Result := FCommentAttri;
tkIdentifier: Result := FIdentifierAttri;
tkAIdentifier: Result := FAIdentifierAttri;
tkPreprocessor: Result := FPreprocessorAttri;
tkKey: Result := FKeyAttri;
tkBoolean: Result := FBooleanAttri;
tkNumber: Result := FNumberAttri;
tkSpace: Result := FSpaceAttri;
tkString: Result := FStringAttri;
tkSequence: Result := FSequenceAttri;
tkIndicator: Result := FIndicatorAttri;
tkTagArea: Result := FTagAreaAttri;
tkDebugLines: Result := FDebugLinesAttri;
tkUnknown: Result := FIdentifierAttri;
else
Result := nil;
end;
end;
function TSynCobolSyn.GetTokenKind: Integer;
begin
Result := Ord(FTokenID);
end;
function TSynCobolSyn.GetSampleSource: UnicodeString;
begin
Result := '000100* This is a sample file to be used to show all TSynCobolSyn''s'#13#10 +
'000200* features.'#13#10 +
'000300* This isn''t a valid COBOL program.'#13#10 +
'000400'#13#10 +
'000500* 1. Supported COBOL features.'#13#10 +
'000600'#13#10 +
'000700* 1.1 Sequence area.'#13#10 +
'000800* First six columns in COBOL are reserved for enumeration'#13#10 +
'000900* of source lines.'#13#10 +
'001000* 1.2 Indicator area.'#13#10 +
'001100* 7th column in COBOL is reserved for special markers like ''*'''#13#10 +
'001200* or ''D''.'#13#10 +
'001300* 1.3 Comment lines.'#13#10 +
'001400* Any line started from ''*'' in 7th column is a comment.'#13#10 +
'001500* No separate word highlighting will be done by the editor.'#13#10 +
'001600* 1.4 Debug lines.'#13#10 +
'001700D Any line started from ''D'' will be treated as containing debug'#13#10 +
'001800D commands. No separate word highlighting will be done'#13#10 +
'001900D by the editor.'#13#10 +
'002000* 1.5 Tag area.'#13#10 +
'002100* Only columns from 8th till 72th can be used for COBOL TAG_AREA'#13#10 +
'002200* program. Columns beyond the 72th one may be used by some TAG_AREA'#13#10 +
'002300* COBOL compilers to tag the code in some internal way. TAG_AREA'#13#10 +
'002400* 1.6 Area A identifiers.'#13#10 +
'002500* In area A (from 8th column till'#13#10 +
'002600* 11th one) you should type only sections''/paragraphs'' names.'#13#10 +
'002700* For example "SOME" is a section name:'#13#10 +
'002800 SOME SECTION.'#13#10 +
'002900* 1.7 Preprocessor directives.'#13#10 +
'003000* For example "COPY" is a preprocessor directive:'#13#10 +
'003100 COPY "PRD-DATA.SEL".'#13#10 +
'003200* 1.8 Key words.'#13#10 +
'003300* For example "ACCEPT" and "AT" are COBOL key words:'#13#10 +
'003400 ACCEPT WS-ENTRY AT 2030.'#13#10 +
'003500* 1.9 Boolean constants.'#13#10 +
'003600* These are "TRUE" and "FALSE" constants. For example:'#13#10 +
'003700 EVALUATE TRUE.'#13#10 +
'003800* 1.10 Numbers.'#13#10 +
'003900* Here are the examples of numbers:'#13#10 +
'004000 01 WSV-TEST-REC.'#13#10 +
'004100 03 WSV-INT-T PIC 9(5) VALUE 12345.'#13#10 +
'004200 03 WSV-PRICES PIC 9(4)V99 COMP-3 VALUE 0000.33. '#13#10 +
'004300 03 WSV-Z-PRICES PIC Z(5)9.99- VALUE -2.12. '#13#10 +
'004400 03 WSV-STORE-DATE PIC 9(4)V99E99 VALUE 0001.33E02.'#13#10 +
'004500* 1.11 Strings.'#13#10 +
'004600* The following types of strings are supported:'#13#10 +
'004700* 1.11.1 Quoted strings.'#13#10 +
'004800 MOVE "The name of field is ""PRODUCT""" TO WS-ERR-MESS.'#13#10 +
'004900 MOVE ''The name of field is ''''PRODUCT'''''' TO WS-ERR-MESS.'#13#10 +
'005000* 1.11.2 Pseudo-text.'#13#10 +
'005100 COPY'#13#10 +
'005200 REPLACING ==+00001== BY +2'#13#10 +
'005300 == 1 == BY -3.'#13#10 +
'005400* 1.11.3 Figurative constants.'#13#10 +
'005500* For example "SPACES" is figurative constant:'#13#10 +
'005600 DISPLAY SPACES UPON CRT.'#13#10 +
'005700* 1.12 Continued lines.'#13#10 +
'005800* Only continued strings are supported. For example:'#13#10 +
'005900 MOVE "The name of figurative constant field is'#13#10 +
'006000-"SPACES" TO WS-ERR-MESS.'#13#10 +
'006100* Or (a single quotation mark in 72th column):'#13#10 +
'005900 MOVE "The name of figurative constant field is ""SPACES"'#13#10 +
'006000-""" TO WS-ERR-MESS.'#13#10 +
'006100'#13#10 +
'006200* 2. Unsupported COBOL features.'#13#10 +
'006300'#13#10 +
'006400* 2.1 Continued lines.'#13#10 +
'006500* Continuation of key words is not supported. For example,'#13#10 +
'006600* the following COBOL code is valid but TSynCobolSyn won''t'#13#10 +
'006700* highlight "VALUE" keyword properly:'#13#10 +
'006800 03 WSV-STORE-DATE PIC 9(4)V99E99 VAL'#13#10 +
'006900-UE 0001.33E02.'#13#10 +
'007000* 2.2 Identifiers started from digits.'#13#10 +
'007100* They are valid in COBOL but won''t be highlighted properly'#13#10 +
'007200* by TSynCobolSyn. For example, "000-main" is a paragraph'#13#10 +
'007300* name and should be highlighted as Area A identifier:'#13#10 +
'007400 000-main.'#13#10 +
'007500* 2.3 Comment entries in optional paragraphs'#13#10 +
'007600* The so called comment-entries in the optional paragraphs'#13#10 +
'007700* of the Identification Division are not supported and won''t'#13#10 +
'007800* be highlighted properly.';
end;
function TSynCobolSyn.IsFilterStored: Boolean;
begin
Result := FDefaultFilter <> SYNS_FilterCOBOL;
end;
function TSynCobolSyn.IsIdentChar(AChar: WideChar): Boolean;
begin
case AChar of
'-', '0'..'9', 'a'..'z', 'A'..'Z':
Result := True;
else
Result := False;
end;
end;
procedure TSynCobolSyn.SetCodeStartPos(Value: LongInt);
begin
if Value < FCodeMediumPos then
FCodeStartPos := Value
else
FCodeStartPos := FCodeMediumPos;
end;
procedure TSynCobolSyn.SetCodeMediumPos(Value: LongInt);
begin
if (FCodeStartPos <= Value) and (Value <= FCodeEndPos) then
FCodeMediumPos := Value
else
if Value > FCodeEndPos
then FCodeMediumPos := FCodeEndPos
else FCodeMediumPos := FCodeStartPos;
end;
procedure TSynCobolSyn.SetCodeEndPos(Value: LongInt);
begin
if Value > FCodeMediumPos then
FCodeEndPos := Value
else
FCodeEndPos := FCodeMediumPos;
end;
class function TSynCobolSyn.GetLanguageName: string;
begin
Result := SYNS_LangCOBOL;
end;
procedure TSynCobolSyn.ResetRange;
begin
FRange := rsUnknown;
end;
procedure TSynCobolSyn.SetRange(Value: Pointer);
begin
FRange := TRangeState(Value);
end;
function TSynCobolSyn.GetRange: Pointer;
begin
Result := Pointer(FRange);
end;
class function TSynCobolSyn.GetFriendlyLanguageName: UnicodeString;
begin
Result := SYNS_FriendlyLangCOBOL;
end;
initialization
{$IFNDEF SYN_CPPB_1}
RegisterPlaceableHighlighter(TSynCobolSyn);
{$ENDIF}
end.
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