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834 lines
26 KiB
834 lines
26 KiB
//-*- coding: utf-8 -*-
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// Scintilla source code edit control
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/** @file LexSQL.cxx
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** Lexer for SQL, including PL/SQL and SQL*Plus.
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** Improved by Jérôme LAFORGE <jerome.laforge_AT_gmail_DOT_com> from 2010 to 2012.
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**/
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// Copyright 1998-2012 by Neil Hodgson <neilh@scintilla.org>
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// The License.txt file describes the conditions under which this software may be distributed.
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <assert.h>
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#include <ctype.h>
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#include <string>
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#include <vector>
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#include <map>
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#include <algorithm>
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#include "ILexer.h"
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#include "Scintilla.h"
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#include "SciLexer.h"
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#include "WordList.h"
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#include "LexAccessor.h"
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#include "Accessor.h"
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#include "StyleContext.h"
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#include "CharacterSet.h"
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#include "LexerModule.h"
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#include "OptionSet.h"
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#include "SparseState.h"
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#ifdef SCI_NAMESPACE
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using namespace Scintilla;
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#endif
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static inline bool IsAWordChar(int ch, bool sqlAllowDottedWord) {
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if (!sqlAllowDottedWord)
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return (ch < 0x80) && (isalnum(ch) || ch == '_');
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else
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return (ch < 0x80) && (isalnum(ch) || ch == '_' || ch == '.');
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}
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static inline bool IsAWordStart(int ch) {
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return (ch < 0x80) && (isalpha(ch) || ch == '_');
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}
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static inline bool IsADoxygenChar(int ch) {
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return (islower(ch) || ch == '$' || ch == '@' ||
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ch == '\\' || ch == '&' || ch == '<' ||
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ch == '>' || ch == '#' || ch == '{' ||
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ch == '}' || ch == '[' || ch == ']');
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}
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static inline bool IsANumberChar(int ch) {
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// Not exactly following number definition (several dots are seen as OK, etc.)
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// but probably enough in most cases.
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return (ch < 0x80) &&
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(isdigit(ch) || toupper(ch) == 'E' ||
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ch == '.' || ch == '-' || ch == '+');
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}
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class SQLStates {
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public :
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void Set(int lineNumber, unsigned short int sqlStatesLine) {
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sqlStatement.Set(lineNumber, sqlStatesLine);
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}
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unsigned short int IgnoreWhen (unsigned short int sqlStatesLine, bool enable) {
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if (enable)
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sqlStatesLine |= MASK_IGNORE_WHEN;
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else
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sqlStatesLine &= ~MASK_IGNORE_WHEN;
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return sqlStatesLine;
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}
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unsigned short int IntoCondition (unsigned short int sqlStatesLine, bool enable) {
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if (enable)
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sqlStatesLine |= MASK_INTO_CONDITION;
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else
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sqlStatesLine &= ~MASK_INTO_CONDITION;
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return sqlStatesLine;
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}
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unsigned short int IntoExceptionBlock (unsigned short int sqlStatesLine, bool enable) {
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if (enable)
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sqlStatesLine |= MASK_INTO_EXCEPTION;
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else
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sqlStatesLine &= ~MASK_INTO_EXCEPTION;
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return sqlStatesLine;
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}
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unsigned short int IntoDeclareBlock (unsigned short int sqlStatesLine, bool enable) {
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if (enable)
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sqlStatesLine |= MASK_INTO_DECLARE;
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else
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sqlStatesLine &= ~MASK_INTO_DECLARE;
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return sqlStatesLine;
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}
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unsigned short int IntoMergeStatement (unsigned short int sqlStatesLine, bool enable) {
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if (enable)
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sqlStatesLine |= MASK_MERGE_STATEMENT;
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else
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sqlStatesLine &= ~MASK_MERGE_STATEMENT;
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return sqlStatesLine;
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}
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unsigned short int CaseMergeWithoutWhenFound (unsigned short int sqlStatesLine, bool found) {
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if (found)
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sqlStatesLine |= MASK_CASE_MERGE_WITHOUT_WHEN_FOUND;
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else
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sqlStatesLine &= ~MASK_CASE_MERGE_WITHOUT_WHEN_FOUND;
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return sqlStatesLine;
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}
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unsigned short int IntoSelectStatementOrAssignment (unsigned short int sqlStatesLine, bool found) {
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if (found)
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sqlStatesLine |= MASK_INTO_SELECT_STATEMENT_OR_ASSIGNEMENT;
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else
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sqlStatesLine &= ~MASK_INTO_SELECT_STATEMENT_OR_ASSIGNEMENT;
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return sqlStatesLine;
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}
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unsigned short int BeginCaseBlock (unsigned short int sqlStatesLine) {
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if ((sqlStatesLine & MASK_NESTED_CASES) < MASK_NESTED_CASES) {
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sqlStatesLine++;
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}
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return sqlStatesLine;
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}
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unsigned short int EndCaseBlock (unsigned short int sqlStatesLine) {
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if ((sqlStatesLine & MASK_NESTED_CASES) > 0) {
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sqlStatesLine--;
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}
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return sqlStatesLine;
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}
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bool IsIgnoreWhen (unsigned short int sqlStatesLine) {
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return (sqlStatesLine & MASK_IGNORE_WHEN) != 0;
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}
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bool IsIntoCondition (unsigned short int sqlStatesLine) {
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return (sqlStatesLine & MASK_INTO_CONDITION) != 0;
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}
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bool IsIntoCaseBlock (unsigned short int sqlStatesLine) {
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return (sqlStatesLine & MASK_NESTED_CASES) != 0;
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}
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bool IsIntoExceptionBlock (unsigned short int sqlStatesLine) {
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return (sqlStatesLine & MASK_INTO_EXCEPTION) != 0;
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}
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bool IsIntoSelectStatementOrAssignment (unsigned short int sqlStatesLine) {
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return (sqlStatesLine & MASK_INTO_SELECT_STATEMENT_OR_ASSIGNEMENT) != 0;
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}
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bool IsCaseMergeWithoutWhenFound (unsigned short int sqlStatesLine) {
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return (sqlStatesLine & MASK_CASE_MERGE_WITHOUT_WHEN_FOUND) != 0;
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}
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bool IsIntoDeclareBlock (unsigned short int sqlStatesLine) {
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return (sqlStatesLine & MASK_INTO_DECLARE) != 0;
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}
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bool IsIntoMergeStatement (unsigned short int sqlStatesLine) {
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return (sqlStatesLine & MASK_MERGE_STATEMENT) != 0;
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}
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unsigned short int ForLine(int lineNumber) {
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return sqlStatement.ValueAt(lineNumber);
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}
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SQLStates() {}
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private :
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SparseState <unsigned short int> sqlStatement;
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enum {
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MASK_NESTED_CASES = 0x01FF,
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MASK_INTO_SELECT_STATEMENT_OR_ASSIGNEMENT = 0x0200,
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MASK_CASE_MERGE_WITHOUT_WHEN_FOUND = 0x0400,
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MASK_MERGE_STATEMENT = 0x0800,
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MASK_INTO_DECLARE = 0x1000,
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MASK_INTO_EXCEPTION = 0x2000,
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MASK_INTO_CONDITION = 0x4000,
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MASK_IGNORE_WHEN = 0x8000
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};
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};
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// Options used for LexerSQL
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struct OptionsSQL {
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bool fold;
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bool foldAtElse;
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bool foldComment;
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bool foldCompact;
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bool foldOnlyBegin;
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bool sqlBackticksIdentifier;
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bool sqlNumbersignComment;
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bool sqlBackslashEscapes;
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bool sqlAllowDottedWord;
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OptionsSQL() {
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fold = false;
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foldAtElse = false;
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foldComment = false;
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foldCompact = false;
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foldOnlyBegin = false;
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sqlBackticksIdentifier = false;
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sqlNumbersignComment = false;
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sqlBackslashEscapes = false;
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sqlAllowDottedWord = false;
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}
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};
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static const char * const sqlWordListDesc[] = {
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"Keywords",
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"Database Objects",
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"PLDoc",
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"SQL*Plus",
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"User Keywords 1",
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"User Keywords 2",
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"User Keywords 3",
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"User Keywords 4",
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0
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};
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struct OptionSetSQL : public OptionSet<OptionsSQL> {
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OptionSetSQL() {
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DefineProperty("fold", &OptionsSQL::fold);
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DefineProperty("fold.sql.at.else", &OptionsSQL::foldAtElse,
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"This option enables SQL folding on a \"ELSE\" and \"ELSIF\" line of an IF statement.");
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DefineProperty("fold.comment", &OptionsSQL::foldComment);
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DefineProperty("fold.compact", &OptionsSQL::foldCompact);
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DefineProperty("fold.sql.only.begin", &OptionsSQL::foldOnlyBegin);
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DefineProperty("lexer.sql.backticks.identifier", &OptionsSQL::sqlBackticksIdentifier);
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DefineProperty("lexer.sql.numbersign.comment", &OptionsSQL::sqlNumbersignComment,
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"If \"lexer.sql.numbersign.comment\" property is set to 0 a line beginning with '#' will not be a comment.");
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DefineProperty("sql.backslash.escapes", &OptionsSQL::sqlBackslashEscapes,
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"Enables backslash as an escape character in SQL.");
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DefineProperty("lexer.sql.allow.dotted.word", &OptionsSQL::sqlAllowDottedWord,
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"Set to 1 to colourise recognized words with dots "
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"(recommended for Oracle PL/SQL objects).");
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DefineWordListSets(sqlWordListDesc);
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}
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};
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class LexerSQL : public ILexer {
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public :
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LexerSQL() {}
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virtual ~LexerSQL() {}
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int SCI_METHOD Version () const {
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return lvOriginal;
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}
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void SCI_METHOD Release() {
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delete this;
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}
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const char * SCI_METHOD PropertyNames() {
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return osSQL.PropertyNames();
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}
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int SCI_METHOD PropertyType(const char *name) {
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return osSQL.PropertyType(name);
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}
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const char * SCI_METHOD DescribeProperty(const char *name) {
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return osSQL.DescribeProperty(name);
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}
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int SCI_METHOD PropertySet(const char *key, const char *val) {
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if (osSQL.PropertySet(&options, key, val)) {
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return 0;
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}
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return -1;
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}
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const char * SCI_METHOD DescribeWordListSets() {
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return osSQL.DescribeWordListSets();
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}
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int SCI_METHOD WordListSet(int n, const char *wl);
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void SCI_METHOD Lex (unsigned int startPos, int lengthDoc, int initStyle, IDocument *pAccess);
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void SCI_METHOD Fold(unsigned int startPos, int lengthDoc, int initStyle, IDocument *pAccess);
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void * SCI_METHOD PrivateCall(int, void *) {
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return 0;
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}
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static ILexer *LexerFactorySQL() {
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return new LexerSQL();
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}
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private:
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bool IsStreamCommentStyle(int style) {
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return style == SCE_SQL_COMMENT ||
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style == SCE_SQL_COMMENTDOC ||
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style == SCE_SQL_COMMENTDOCKEYWORD ||
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style == SCE_SQL_COMMENTDOCKEYWORDERROR;
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}
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bool IsCommentStyle (int style) {
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switch (style) {
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case SCE_SQL_COMMENT :
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case SCE_SQL_COMMENTDOC :
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case SCE_SQL_COMMENTLINE :
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case SCE_SQL_COMMENTLINEDOC :
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case SCE_SQL_COMMENTDOCKEYWORD :
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case SCE_SQL_COMMENTDOCKEYWORDERROR :
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return true;
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default :
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return false;
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}
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}
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bool IsCommentLine (int line, LexAccessor &styler) {
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int pos = styler.LineStart(line);
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int eol_pos = styler.LineStart(line + 1) - 1;
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for (int i = pos; i + 1 < eol_pos; i++) {
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int style = styler.StyleAt(i);
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// MySQL needs -- comments to be followed by space or control char
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if (style == SCE_SQL_COMMENTLINE && styler.Match(i, "--"))
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return true;
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else if (!IsASpaceOrTab(styler[i]))
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return false;
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}
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return false;
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}
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OptionsSQL options;
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OptionSetSQL osSQL;
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SQLStates sqlStates;
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WordList keywords1;
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WordList keywords2;
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WordList kw_pldoc;
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WordList kw_sqlplus;
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WordList kw_user1;
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WordList kw_user2;
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WordList kw_user3;
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WordList kw_user4;
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};
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int SCI_METHOD LexerSQL::WordListSet(int n, const char *wl) {
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WordList *wordListN = 0;
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switch (n) {
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case 0:
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wordListN = &keywords1;
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break;
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case 1:
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wordListN = &keywords2;
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break;
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case 2:
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wordListN = &kw_pldoc;
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break;
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case 3:
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wordListN = &kw_sqlplus;
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break;
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case 4:
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wordListN = &kw_user1;
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break;
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case 5:
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wordListN = &kw_user2;
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break;
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case 6:
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wordListN = &kw_user3;
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break;
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case 7:
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wordListN = &kw_user4;
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}
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int firstModification = -1;
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if (wordListN) {
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WordList wlNew;
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wlNew.Set(wl);
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if (*wordListN != wlNew) {
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wordListN->Set(wl);
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firstModification = 0;
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}
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}
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return firstModification;
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}
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void SCI_METHOD LexerSQL::Lex(unsigned int startPos, int length, int initStyle, IDocument *pAccess) {
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LexAccessor styler(pAccess);
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StyleContext sc(startPos, length, initStyle, styler);
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int styleBeforeDCKeyword = SCE_SQL_DEFAULT;
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int offset = 0;
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for (; sc.More(); sc.Forward(), offset++) {
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// Determine if the current state should terminate.
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switch (sc.state) {
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case SCE_SQL_OPERATOR:
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sc.SetState(SCE_SQL_DEFAULT);
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break;
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case SCE_SQL_NUMBER:
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// We stop the number definition on non-numerical non-dot non-eE non-sign char
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if (!IsANumberChar(sc.ch)) {
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sc.SetState(SCE_SQL_DEFAULT);
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}
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break;
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case SCE_SQL_IDENTIFIER:
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if (!IsAWordChar(sc.ch, options.sqlAllowDottedWord)) {
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int nextState = SCE_SQL_DEFAULT;
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char s[1000];
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sc.GetCurrentLowered(s, sizeof(s));
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if (keywords1.InList(s)) {
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sc.ChangeState(SCE_SQL_WORD);
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} else if (keywords2.InList(s)) {
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sc.ChangeState(SCE_SQL_WORD2);
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} else if (kw_sqlplus.InListAbbreviated(s, '~')) {
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sc.ChangeState(SCE_SQL_SQLPLUS);
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if (strncmp(s, "rem", 3) == 0) {
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nextState = SCE_SQL_SQLPLUS_COMMENT;
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} else if (strncmp(s, "pro", 3) == 0) {
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nextState = SCE_SQL_SQLPLUS_PROMPT;
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}
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} else if (kw_user1.InList(s)) {
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sc.ChangeState(SCE_SQL_USER1);
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} else if (kw_user2.InList(s)) {
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sc.ChangeState(SCE_SQL_USER2);
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} else if (kw_user3.InList(s)) {
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sc.ChangeState(SCE_SQL_USER3);
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} else if (kw_user4.InList(s)) {
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sc.ChangeState(SCE_SQL_USER4);
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}
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sc.SetState(nextState);
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}
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break;
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case SCE_SQL_QUOTEDIDENTIFIER:
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if (sc.ch == 0x60) {
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if (sc.chNext == 0x60) {
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sc.Forward(); // Ignore it
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} else {
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sc.ForwardSetState(SCE_SQL_DEFAULT);
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}
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}
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break;
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case SCE_SQL_COMMENT:
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if (sc.Match('*', '/')) {
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sc.Forward();
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sc.ForwardSetState(SCE_SQL_DEFAULT);
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}
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break;
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case SCE_SQL_COMMENTDOC:
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if (sc.Match('*', '/')) {
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sc.Forward();
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sc.ForwardSetState(SCE_SQL_DEFAULT);
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} else if (sc.ch == '@' || sc.ch == '\\') { // Doxygen support
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// Verify that we have the conditions to mark a comment-doc-keyword
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if ((IsASpace(sc.chPrev) || sc.chPrev == '*') && (!IsASpace(sc.chNext))) {
|
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styleBeforeDCKeyword = SCE_SQL_COMMENTDOC;
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sc.SetState(SCE_SQL_COMMENTDOCKEYWORD);
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}
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}
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break;
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case SCE_SQL_COMMENTLINE:
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case SCE_SQL_COMMENTLINEDOC:
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case SCE_SQL_SQLPLUS_COMMENT:
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case SCE_SQL_SQLPLUS_PROMPT:
|
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if (sc.atLineStart) {
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sc.SetState(SCE_SQL_DEFAULT);
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}
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break;
|
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case SCE_SQL_COMMENTDOCKEYWORD:
|
|
if ((styleBeforeDCKeyword == SCE_SQL_COMMENTDOC) && sc.Match('*', '/')) {
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sc.ChangeState(SCE_SQL_COMMENTDOCKEYWORDERROR);
|
|
sc.Forward();
|
|
sc.ForwardSetState(SCE_SQL_DEFAULT);
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|
} else if (!IsADoxygenChar(sc.ch)) {
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char s[100];
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sc.GetCurrentLowered(s, sizeof(s));
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if (!isspace(sc.ch) || !kw_pldoc.InList(s + 1)) {
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sc.ChangeState(SCE_SQL_COMMENTDOCKEYWORDERROR);
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}
|
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sc.SetState(styleBeforeDCKeyword);
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}
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break;
|
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case SCE_SQL_CHARACTER:
|
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if (options.sqlBackslashEscapes && sc.ch == '\\') {
|
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sc.Forward();
|
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} else if (sc.ch == '\'') {
|
|
if (sc.chNext == '\"') {
|
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sc.Forward();
|
|
} else {
|
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sc.ForwardSetState(SCE_SQL_DEFAULT);
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}
|
|
}
|
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break;
|
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case SCE_SQL_STRING:
|
|
if (sc.ch == '\\') {
|
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// Escape sequence
|
|
sc.Forward();
|
|
} else if (sc.ch == '\"') {
|
|
if (sc.chNext == '\"') {
|
|
sc.Forward();
|
|
} else {
|
|
sc.ForwardSetState(SCE_SQL_DEFAULT);
|
|
}
|
|
}
|
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break;
|
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}
|
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|
|
// Determine if a new state should be entered.
|
|
if (sc.state == SCE_SQL_DEFAULT) {
|
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if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
|
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sc.SetState(SCE_SQL_NUMBER);
|
|
} else if (IsAWordStart(sc.ch)) {
|
|
sc.SetState(SCE_SQL_IDENTIFIER);
|
|
} else if (sc.ch == 0x60 && options.sqlBackticksIdentifier) {
|
|
sc.SetState(SCE_SQL_QUOTEDIDENTIFIER);
|
|
} else if (sc.Match('/', '*')) {
|
|
if (sc.Match("/**") || sc.Match("/*!")) { // Support of Doxygen doc. style
|
|
sc.SetState(SCE_SQL_COMMENTDOC);
|
|
} else {
|
|
sc.SetState(SCE_SQL_COMMENT);
|
|
}
|
|
sc.Forward(); // Eat the * so it isn't used for the end of the comment
|
|
} else if (sc.Match('-', '-')) {
|
|
// MySQL requires a space or control char after --
|
|
// http://dev.mysql.com/doc/mysql/en/ansi-diff-comments.html
|
|
// Perhaps we should enforce that with proper property:
|
|
//~ } else if (sc.Match("-- ")) {
|
|
sc.SetState(SCE_SQL_COMMENTLINE);
|
|
} else if (sc.ch == '#' && options.sqlNumbersignComment) {
|
|
sc.SetState(SCE_SQL_COMMENTLINEDOC);
|
|
} else if (sc.ch == '\'') {
|
|
sc.SetState(SCE_SQL_CHARACTER);
|
|
} else if (sc.ch == '\"') {
|
|
sc.SetState(SCE_SQL_STRING);
|
|
} else if (isoperator(static_cast<char>(sc.ch))) {
|
|
sc.SetState(SCE_SQL_OPERATOR);
|
|
}
|
|
}
|
|
}
|
|
sc.Complete();
|
|
}
|
|
|
|
void SCI_METHOD LexerSQL::Fold(unsigned int startPos, int length, int initStyle, IDocument *pAccess) {
|
|
if (!options.fold)
|
|
return;
|
|
LexAccessor styler(pAccess);
|
|
unsigned int endPos = startPos + length;
|
|
int visibleChars = 0;
|
|
int lineCurrent = styler.GetLine(startPos);
|
|
int levelCurrent = SC_FOLDLEVELBASE;
|
|
|
|
if (lineCurrent > 0) {
|
|
// Backtrack to previous line in case need to fix its fold status for folding block of single-line comments (i.e. '--').
|
|
lineCurrent -= 1;
|
|
startPos = styler.LineStart(lineCurrent);
|
|
|
|
if (lineCurrent > 0)
|
|
levelCurrent = styler.LevelAt(lineCurrent - 1) >> 16;
|
|
}
|
|
int levelNext = levelCurrent;
|
|
char chNext = styler[startPos];
|
|
int styleNext = styler.StyleAt(startPos);
|
|
int style = initStyle;
|
|
bool endFound = false;
|
|
bool isUnfoldingIgnored = false;
|
|
// this statementFound flag avoids to fold when the statement is on only one line by ignoring ELSE or ELSIF
|
|
// eg. "IF condition1 THEN ... ELSIF condition2 THEN ... ELSE ... END IF;"
|
|
bool statementFound = false;
|
|
unsigned short int sqlStatesCurrentLine = 0;
|
|
if (!options.foldOnlyBegin) {
|
|
sqlStatesCurrentLine = sqlStates.ForLine(lineCurrent);
|
|
}
|
|
for (unsigned int i = startPos; i < endPos; i++) {
|
|
char ch = chNext;
|
|
chNext = styler.SafeGetCharAt(i + 1);
|
|
int stylePrev = style;
|
|
style = styleNext;
|
|
styleNext = styler.StyleAt(i + 1);
|
|
bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
|
|
if (atEOL || (!IsCommentStyle(style) && ch == ';')) {
|
|
if (endFound) {
|
|
//Maybe this is the end of "EXCEPTION" BLOCK (eg. "BEGIN ... EXCEPTION ... END;")
|
|
sqlStatesCurrentLine = sqlStates.IntoExceptionBlock(sqlStatesCurrentLine, false);
|
|
}
|
|
// set endFound and isUnfoldingIgnored to false if EOL is reached or ';' is found
|
|
endFound = false;
|
|
isUnfoldingIgnored = false;
|
|
}
|
|
if ((!IsCommentStyle(style) && ch == ';')) {
|
|
if (sqlStates.IsIntoMergeStatement(sqlStatesCurrentLine)) {
|
|
// This is the end of "MERGE" statement.
|
|
if (!sqlStates.IsCaseMergeWithoutWhenFound(sqlStatesCurrentLine))
|
|
levelNext--;
|
|
sqlStatesCurrentLine = sqlStates.IntoMergeStatement(sqlStatesCurrentLine, false);
|
|
levelNext--;
|
|
}
|
|
if (sqlStates.IsIntoSelectStatementOrAssignment(sqlStatesCurrentLine))
|
|
sqlStatesCurrentLine = sqlStates.IntoSelectStatementOrAssignment(sqlStatesCurrentLine, false);
|
|
}
|
|
if (ch == ':' && chNext == '=' && !IsCommentStyle(style))
|
|
sqlStatesCurrentLine = sqlStates.IntoSelectStatementOrAssignment(sqlStatesCurrentLine, true);
|
|
|
|
if (options.foldComment && IsStreamCommentStyle(style)) {
|
|
if (!IsStreamCommentStyle(stylePrev)) {
|
|
levelNext++;
|
|
} else if (!IsStreamCommentStyle(styleNext) && !atEOL) {
|
|
// Comments don't end at end of line and the next character may be unstyled.
|
|
levelNext--;
|
|
}
|
|
}
|
|
if (options.foldComment && (style == SCE_SQL_COMMENTLINE)) {
|
|
// MySQL needs -- comments to be followed by space or control char
|
|
if ((ch == '-') && (chNext == '-')) {
|
|
char chNext2 = styler.SafeGetCharAt(i + 2);
|
|
char chNext3 = styler.SafeGetCharAt(i + 3);
|
|
if (chNext2 == '{' || chNext3 == '{') {
|
|
levelNext++;
|
|
} else if (chNext2 == '}' || chNext3 == '}') {
|
|
levelNext--;
|
|
}
|
|
}
|
|
}
|
|
// Fold block of single-line comments (i.e. '--').
|
|
if (options.foldComment && atEOL && IsCommentLine(lineCurrent, styler)) {
|
|
if (!IsCommentLine(lineCurrent - 1, styler) && IsCommentLine(lineCurrent + 1, styler))
|
|
levelNext++;
|
|
else if (IsCommentLine(lineCurrent - 1, styler) && !IsCommentLine(lineCurrent + 1, styler))
|
|
levelNext--;
|
|
}
|
|
if (style == SCE_SQL_OPERATOR) {
|
|
if (ch == '(') {
|
|
if (levelCurrent > levelNext)
|
|
levelCurrent--;
|
|
levelNext++;
|
|
} else if (ch == ')') {
|
|
levelNext--;
|
|
} else if ((!options.foldOnlyBegin) && ch == ';') {
|
|
sqlStatesCurrentLine = sqlStates.IgnoreWhen(sqlStatesCurrentLine, false);
|
|
}
|
|
}
|
|
// If new keyword (cannot trigger on elseif or nullif, does less tests)
|
|
if (style == SCE_SQL_WORD && stylePrev != SCE_SQL_WORD) {
|
|
const int MAX_KW_LEN = 9; // Maximum length of folding keywords
|
|
char s[MAX_KW_LEN + 2];
|
|
unsigned int j = 0;
|
|
for (; j < MAX_KW_LEN + 1; j++) {
|
|
if (!iswordchar(styler[i + j])) {
|
|
break;
|
|
}
|
|
s[j] = static_cast<char>(tolower(styler[i + j]));
|
|
}
|
|
if (j == MAX_KW_LEN + 1) {
|
|
// Keyword too long, don't test it
|
|
s[0] = '\0';
|
|
} else {
|
|
s[j] = '\0';
|
|
}
|
|
if (!options.foldOnlyBegin &&
|
|
strcmp(s, "select") == 0) {
|
|
sqlStatesCurrentLine = sqlStates.IntoSelectStatementOrAssignment(sqlStatesCurrentLine, true);
|
|
} else if (strcmp(s, "if") == 0) {
|
|
if (endFound) {
|
|
endFound = false;
|
|
if (options.foldOnlyBegin && !isUnfoldingIgnored) {
|
|
// this end isn't for begin block, but for if block ("end if;")
|
|
// so ignore previous "end" by increment levelNext.
|
|
levelNext++;
|
|
}
|
|
} else {
|
|
if (!options.foldOnlyBegin)
|
|
sqlStatesCurrentLine = sqlStates.IntoCondition(sqlStatesCurrentLine, true);
|
|
if (levelCurrent > levelNext) {
|
|
// doesn't include this line into the folding block
|
|
// because doesn't hide IF (eg "END; IF")
|
|
levelCurrent = levelNext;
|
|
}
|
|
}
|
|
} else if (!options.foldOnlyBegin &&
|
|
strcmp(s, "then") == 0 &&
|
|
sqlStates.IsIntoCondition(sqlStatesCurrentLine)) {
|
|
sqlStatesCurrentLine = sqlStates.IntoCondition(sqlStatesCurrentLine, false);
|
|
if (!options.foldOnlyBegin) {
|
|
if (levelCurrent > levelNext) {
|
|
levelCurrent = levelNext;
|
|
}
|
|
if (!statementFound)
|
|
levelNext++;
|
|
|
|
statementFound = true;
|
|
} else if (levelCurrent > levelNext) {
|
|
// doesn't include this line into the folding block
|
|
// because doesn't hide LOOP or CASE (eg "END; LOOP" or "END; CASE")
|
|
levelCurrent = levelNext;
|
|
}
|
|
} else if (strcmp(s, "loop") == 0 ||
|
|
strcmp(s, "case") == 0) {
|
|
if (endFound) {
|
|
endFound = false;
|
|
if (options.foldOnlyBegin && !isUnfoldingIgnored) {
|
|
// this end isn't for begin block, but for loop block ("end loop;") or case block ("end case;")
|
|
// so ignore previous "end" by increment levelNext.
|
|
levelNext++;
|
|
}
|
|
if ((!options.foldOnlyBegin) && strcmp(s, "case") == 0) {
|
|
sqlStatesCurrentLine = sqlStates.EndCaseBlock(sqlStatesCurrentLine);
|
|
if (!sqlStates.IsCaseMergeWithoutWhenFound(sqlStatesCurrentLine))
|
|
levelNext--; //again for the "end case;" and block when
|
|
}
|
|
} else if (!options.foldOnlyBegin) {
|
|
if (strcmp(s, "case") == 0) {
|
|
sqlStatesCurrentLine = sqlStates.BeginCaseBlock(sqlStatesCurrentLine);
|
|
sqlStatesCurrentLine = sqlStates.CaseMergeWithoutWhenFound(sqlStatesCurrentLine, true);
|
|
}
|
|
|
|
if (levelCurrent > levelNext)
|
|
levelCurrent = levelNext;
|
|
|
|
if (!statementFound)
|
|
levelNext++;
|
|
|
|
statementFound = true;
|
|
} else if (levelCurrent > levelNext) {
|
|
// doesn't include this line into the folding block
|
|
// because doesn't hide LOOP or CASE (eg "END; LOOP" or "END; CASE")
|
|
levelCurrent = levelNext;
|
|
}
|
|
} else if ((!options.foldOnlyBegin) && (
|
|
// folding for ELSE and ELSIF block only if foldAtElse is set
|
|
// and IF or CASE aren't on only one line with ELSE or ELSIF (with flag statementFound)
|
|
options.foldAtElse && !statementFound) && strcmp(s, "elsif") == 0) {
|
|
sqlStatesCurrentLine = sqlStates.IntoCondition(sqlStatesCurrentLine, true);
|
|
levelCurrent--;
|
|
levelNext--;
|
|
} else if ((!options.foldOnlyBegin) && (
|
|
// folding for ELSE and ELSIF block only if foldAtElse is set
|
|
// and IF or CASE aren't on only one line with ELSE or ELSIF (with flag statementFound)
|
|
options.foldAtElse && !statementFound) && strcmp(s, "else") == 0) {
|
|
// prevent also ELSE is on the same line (eg. "ELSE ... END IF;")
|
|
statementFound = true;
|
|
if (sqlStates.IsIntoCaseBlock(sqlStatesCurrentLine) && sqlStates.IsCaseMergeWithoutWhenFound(sqlStatesCurrentLine)) {
|
|
sqlStatesCurrentLine = sqlStates.CaseMergeWithoutWhenFound(sqlStatesCurrentLine, false);
|
|
levelNext++;
|
|
} else {
|
|
// we are in same case "} ELSE {" in C language
|
|
levelCurrent--;
|
|
}
|
|
} else if (strcmp(s, "begin") == 0) {
|
|
levelNext++;
|
|
sqlStatesCurrentLine = sqlStates.IntoDeclareBlock(sqlStatesCurrentLine, false);
|
|
} else if ((strcmp(s, "end") == 0) ||
|
|
// SQL Anywhere permits IF ... ELSE ... ENDIF
|
|
// will only be active if "endif" appears in the
|
|
// keyword list.
|
|
(strcmp(s, "endif") == 0)) {
|
|
endFound = true;
|
|
levelNext--;
|
|
if (sqlStates.IsIntoSelectStatementOrAssignment(sqlStatesCurrentLine) && !sqlStates.IsCaseMergeWithoutWhenFound(sqlStatesCurrentLine))
|
|
levelNext--;
|
|
if (levelNext < SC_FOLDLEVELBASE) {
|
|
levelNext = SC_FOLDLEVELBASE;
|
|
isUnfoldingIgnored = true;
|
|
}
|
|
} else if ((!options.foldOnlyBegin) &&
|
|
strcmp(s, "when") == 0 &&
|
|
!sqlStates.IsIgnoreWhen(sqlStatesCurrentLine) &&
|
|
!sqlStates.IsIntoExceptionBlock(sqlStatesCurrentLine) && (
|
|
sqlStates.IsIntoCaseBlock(sqlStatesCurrentLine) ||
|
|
sqlStates.IsIntoMergeStatement(sqlStatesCurrentLine)
|
|
)
|
|
) {
|
|
sqlStatesCurrentLine = sqlStates.IntoCondition(sqlStatesCurrentLine, true);
|
|
|
|
// Don't foldind when CASE and WHEN are on the same line (with flag statementFound) (eg. "CASE selector WHEN expression1 THEN sequence_of_statements1;\n")
|
|
// and same way for MERGE statement.
|
|
if (!statementFound) {
|
|
if (!sqlStates.IsCaseMergeWithoutWhenFound(sqlStatesCurrentLine)) {
|
|
levelCurrent--;
|
|
levelNext--;
|
|
}
|
|
sqlStatesCurrentLine = sqlStates.CaseMergeWithoutWhenFound(sqlStatesCurrentLine, false);
|
|
}
|
|
} else if ((!options.foldOnlyBegin) && strcmp(s, "exit") == 0) {
|
|
sqlStatesCurrentLine = sqlStates.IgnoreWhen(sqlStatesCurrentLine, true);
|
|
} else if ((!options.foldOnlyBegin) && !sqlStates.IsIntoDeclareBlock(sqlStatesCurrentLine) && strcmp(s, "exception") == 0) {
|
|
sqlStatesCurrentLine = sqlStates.IntoExceptionBlock(sqlStatesCurrentLine, true);
|
|
} else if ((!options.foldOnlyBegin) &&
|
|
(strcmp(s, "declare") == 0 ||
|
|
strcmp(s, "function") == 0 ||
|
|
strcmp(s, "procedure") == 0 ||
|
|
strcmp(s, "package") == 0)) {
|
|
sqlStatesCurrentLine = sqlStates.IntoDeclareBlock(sqlStatesCurrentLine, true);
|
|
} else if ((!options.foldOnlyBegin) &&
|
|
strcmp(s, "merge") == 0) {
|
|
sqlStatesCurrentLine = sqlStates.IntoMergeStatement(sqlStatesCurrentLine, true);
|
|
sqlStatesCurrentLine = sqlStates.CaseMergeWithoutWhenFound(sqlStatesCurrentLine, true);
|
|
levelNext++;
|
|
statementFound = true;
|
|
}
|
|
}
|
|
if (atEOL) {
|
|
int levelUse = levelCurrent;
|
|
int lev = levelUse | levelNext << 16;
|
|
if (visibleChars == 0 && options.foldCompact)
|
|
lev |= SC_FOLDLEVELWHITEFLAG;
|
|
if (levelUse < levelNext)
|
|
lev |= SC_FOLDLEVELHEADERFLAG;
|
|
if (lev != styler.LevelAt(lineCurrent)) {
|
|
styler.SetLevel(lineCurrent, lev);
|
|
}
|
|
lineCurrent++;
|
|
levelCurrent = levelNext;
|
|
visibleChars = 0;
|
|
statementFound = false;
|
|
if (!options.foldOnlyBegin)
|
|
sqlStates.Set(lineCurrent, sqlStatesCurrentLine);
|
|
}
|
|
if (!isspacechar(ch)) {
|
|
visibleChars++;
|
|
}
|
|
}
|
|
}
|
|
|
|
LexerModule lmSQL(SCLEX_SQL, LexerSQL::LexerFactorySQL, "sql", sqlWordListDesc);
|