+++ /dev/null
-/**
- * Scintilla source code edit control
- * @file LexMySQL.cxx
- * Lexer for MySQL
- *
- * Improved by Mike Lischke <mike.lischke@sun.com>
- * Adopted from LexSQL.cxx by Anders Karlsson <anders@mysql.com>
- * Original work by Neil Hodgson <neilh@scintilla.org>
- * Copyright 1998-2005 by Neil Hodgson <neilh@scintilla.org>
- * The License.txt file describes the conditions under which this software may be distributed.
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <stdio.h>
-#include <stdarg.h>
-
-#include "Platform.h"
-
-#include "PropSet.h"
-#include "Accessor.h"
-#include "StyleContext.h"
-#include "KeyWords.h"
-#include "Scintilla.h"
-#include "SciLexer.h"
-
-#ifdef SCI_NAMESPACE
-using namespace Scintilla;
-#endif
-
-static inline bool IsAWordChar(int ch) {
- return (ch < 0x80) && (isalnum(ch) || ch == '_');
-}
-
-static inline bool IsAWordStart(int ch) {
- return (ch < 0x80) && (isalpha(ch) || ch == '_');
-}
-
-static inline bool IsADoxygenChar(int ch) {
- return (islower(ch) || ch == '$' || ch == '@' ||
- ch == '\\' || ch == '&' || ch == '<' ||
- ch == '>' || ch == '#' || ch == '{' ||
- ch == '}' || ch == '[' || ch == ']');
-}
-
-static inline bool IsANumberChar(int ch) {
- // Not exactly following number definition (several dots are seen as OK, etc.)
- // but probably enough in most cases.
- return (ch < 0x80) &&
- (isdigit(ch) || toupper(ch) == 'E' ||
- ch == '.' || ch == '-' || ch == '+');
-}
-
-//--------------------------------------------------------------------------------------------------
-
-/**
- * Check if the current content context represent a keyword and set the context state if so.
- */
-static void CheckForKeyword(StyleContext& sc, WordList* keywordlists[])
-{
- int length = sc.LengthCurrent() + 1; // +1 for the next char
- char* s = new char[length];
- sc.GetCurrentLowered(s, length);
- if (keywordlists[0]->InList(s))
- sc.ChangeState(SCE_MYSQL_MAJORKEYWORD);
- else
- if (keywordlists[1]->InList(s))
- sc.ChangeState(SCE_MYSQL_KEYWORD);
- else
- if (keywordlists[2]->InList(s))
- sc.ChangeState(SCE_MYSQL_DATABASEOBJECT);
- else
- if (keywordlists[3]->InList(s))
- sc.ChangeState(SCE_MYSQL_FUNCTION);
- else
- if (keywordlists[5]->InList(s))
- sc.ChangeState(SCE_MYSQL_PROCEDUREKEYWORD);
- else
- if (keywordlists[6]->InList(s))
- sc.ChangeState(SCE_MYSQL_USER1);
- else
- if (keywordlists[7]->InList(s))
- sc.ChangeState(SCE_MYSQL_USER2);
- else
- if (keywordlists[8]->InList(s))
- sc.ChangeState(SCE_MYSQL_USER3);
- delete [] s;
-}
-
-//--------------------------------------------------------------------------------------------------
-
-static void ColouriseMySQLDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
- Accessor &styler)
-{
- StyleContext sc(startPos, length, initStyle, styler);
-
- for (; sc.More(); sc.Forward())
- {
- // Determine if the current state should terminate.
- switch (sc.state)
- {
- case SCE_MYSQL_OPERATOR:
- sc.SetState(SCE_MYSQL_DEFAULT);
- break;
- case SCE_MYSQL_NUMBER:
- // We stop the number definition on non-numerical non-dot non-eE non-sign char.
- if (!IsANumberChar(sc.ch))
- sc.SetState(SCE_MYSQL_DEFAULT);
- break;
- case SCE_MYSQL_IDENTIFIER:
- // Switch from identifier to keyword state and open a new state for the new char.
- if (!IsAWordChar(sc.ch))
- {
- CheckForKeyword(sc, keywordlists);
-
- // Additional check for function keywords needed.
- // A function name must be followed by an opening parenthesis.
- if (sc.state == SCE_MYSQL_FUNCTION && sc.ch != '(')
- sc.ChangeState(SCE_MYSQL_DEFAULT);
-
- sc.SetState(SCE_MYSQL_DEFAULT);
- }
- break;
- case SCE_MYSQL_VARIABLE:
- if (!IsAWordChar(sc.ch))
- sc.SetState(SCE_MYSQL_DEFAULT);
- break;
- case SCE_MYSQL_SYSTEMVARIABLE:
- if (!IsAWordChar(sc.ch))
- {
- int length = sc.LengthCurrent() + 1;
- char* s = new char[length];
- sc.GetCurrentLowered(s, length);
-
- // Check for known system variables here.
- if (keywordlists[4]->InList(&s[2]))
- sc.ChangeState(SCE_MYSQL_KNOWNSYSTEMVARIABLE);
- delete [] s;
-
- sc.SetState(SCE_MYSQL_DEFAULT);
- }
- break;
- case SCE_MYSQL_QUOTEDIDENTIFIER:
- if (sc.ch == '`')
- {
- if (sc.chNext == '`')
- sc.Forward(); // Ignore it
- else
- sc.ForwardSetState(SCE_MYSQL_DEFAULT);
- }
- break;
- case SCE_MYSQL_COMMENT:
- case SCE_MYSQL_HIDDENCOMMAND:
- if (sc.Match('*', '/'))
- {
- sc.Forward();
- sc.ForwardSetState(SCE_MYSQL_DEFAULT);
- }
- break;
- case SCE_MYSQL_COMMENTLINE:
- if (sc.atLineStart)
- sc.SetState(SCE_MYSQL_DEFAULT);
- break;
- case SCE_MYSQL_SQSTRING:
- if (sc.ch == '\\')
- sc.Forward(); // Escape sequence
- else
- if (sc.ch == '\'')
- {
- // End of single quoted string reached?
- if (sc.chNext == '\'')
- sc.Forward();
- else
- sc.ForwardSetState(SCE_MYSQL_DEFAULT);
- }
- break;
- case SCE_MYSQL_DQSTRING:
- if (sc.ch == '\\')
- sc.Forward(); // Escape sequence
- else
- if (sc.ch == '\"')
- {
- // End of single quoted string reached?
- if (sc.chNext == '\"')
- sc.Forward();
- else
- sc.ForwardSetState(SCE_MYSQL_DEFAULT);
- }
- break;
- }
-
- // Determine if a new state should be entered.
- if (sc.state == SCE_MYSQL_DEFAULT)
- {
- switch (sc.ch)
- {
- case '@':
- if (sc.chNext == '@')
- {
- sc.SetState(SCE_MYSQL_SYSTEMVARIABLE);
- sc.Forward(2); // Skip past @@.
- }
- else
- if (IsAWordStart(sc.ch))
- {
- sc.SetState(SCE_MYSQL_VARIABLE);
- sc.Forward(); // Skip past @.
- }
- else
- sc.SetState(SCE_MYSQL_OPERATOR);
- break;
- case '`':
- sc.SetState(SCE_MYSQL_QUOTEDIDENTIFIER);
- break;
- case '#':
- sc.SetState(SCE_MYSQL_COMMENTLINE);
- break;
- case '\'':
- sc.SetState(SCE_MYSQL_SQSTRING);
- break;
- case '\"':
- sc.SetState(SCE_MYSQL_DQSTRING);
- break;
- default:
- if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext)))
- sc.SetState(SCE_MYSQL_NUMBER);
- else
- if (IsAWordStart(sc.ch))
- sc.SetState(SCE_MYSQL_IDENTIFIER);
- else
- if (sc.Match('/', '*'))
- {
- sc.SetState(SCE_MYSQL_COMMENT);
-
- // Skip comment introducer and check for hidden command.
- sc.Forward(2);
- if (sc.ch == '!')
- {
- sc.ChangeState(SCE_MYSQL_HIDDENCOMMAND);
- sc.Forward();
- }
- }
- else
- if (sc.Match("--"))
- {
- // Special MySQL single line comment.
- sc.SetState(SCE_MYSQL_COMMENTLINE);
- sc.Forward(2);
-
- // Check the third character too. It must be a space or EOL.
- if (sc.ch != ' ' && sc.ch != '\n' && sc.ch != '\r')
- sc.ChangeState(SCE_MYSQL_OPERATOR);
- }
- else
- if (isoperator(static_cast<char>(sc.ch)))
- sc.SetState(SCE_MYSQL_OPERATOR);
- }
- }
- }
-
- // Do a final check for keywords if we currently have an identifier, to highlight them
- // also at the end of a line.
- if (sc.state == SCE_MYSQL_IDENTIFIER)
- {
- CheckForKeyword(sc, keywordlists);
-
- // Additional check for function keywords needed.
- // A function name must be followed by an opening parenthesis.
- if (sc.state == SCE_MYSQL_FUNCTION && sc.ch != '(')
- sc.ChangeState(SCE_MYSQL_DEFAULT);
- }
-
- sc.Complete();
-}
-
-//--------------------------------------------------------------------------------------------------
-
-/**
- * Helper function to determine if we have a foldable comment currently.
- */
-static bool IsStreamCommentStyle(int style)
-{
- return style == SCE_MYSQL_COMMENT;
-}
-
-//--------------------------------------------------------------------------------------------------
-
-/**
- * Code copied from StyleContext and modified to work here. Should go into Accessor as a
- * companion to Match()...
- */
-bool MatchIgnoreCase(Accessor &styler, int currentPos, const char *s)
-{
- for (int n = 0; *s; n++)
- {
- if (*s != tolower(styler.SafeGetCharAt(currentPos + n)))
- return false;
- s++;
- }
- return true;
-}
-
-//--------------------------------------------------------------------------------------------------
-
-// Store both the current line's fold level and the next lines in the
-// level store to make it easy to pick up with each increment.
-static void FoldMySQLDoc(unsigned int startPos, int length, int initStyle, WordList *[], Accessor &styler)
-{
- bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
- bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
- bool foldOnlyBegin = styler.GetPropertyInt("fold.sql.only.begin", 0) != 0;
-
- int visibleChars = 0;
- int lineCurrent = styler.GetLine(startPos);
- int levelCurrent = SC_FOLDLEVELBASE;
- if (lineCurrent > 0)
- levelCurrent = styler.LevelAt(lineCurrent - 1) >> 16;
- int levelNext = levelCurrent;
-
- int styleNext = styler.StyleAt(startPos);
- int style = initStyle;
-
- bool endFound = false;
- bool whenFound = false;
- bool elseFound = false;
-
- char nextChar = styler.SafeGetCharAt(startPos);
- for (unsigned int i = startPos; length > 0; i++, length--)
- {
- int stylePrev = style;
- style = styleNext;
- styleNext = styler.StyleAt(i + 1);
-
- char currentChar = nextChar;
- nextChar = styler.SafeGetCharAt(i + 1);
- bool atEOL = (currentChar == '\r' && nextChar != '\n') || (currentChar == '\n');
-
- switch (style)
- {
- case SCE_MYSQL_COMMENT:
- if (foldComment)
- {
- // Multiline comment style /* .. */.
- if (IsStreamCommentStyle(style))
- {
- // Increase level if we just start a foldable comment.
- if (!IsStreamCommentStyle(stylePrev))
- levelNext++;
- else
- // If we are in the middle of a foldable comment check if it ends now.
- // Don't end at the line end, though.
- if (!IsStreamCommentStyle(styleNext) && !atEOL)
- levelNext--;
- }
- }
- break;
- case SCE_MYSQL_COMMENTLINE:
- if (foldComment)
- {
- // Not really a standard, but we add support for single line comments
- // with special curly braces syntax as foldable comments too.
- // MySQL needs -- comments to be followed by space or control char
- if (styler.Match(i, "--"))
- {
- char chNext2 = styler.SafeGetCharAt(i + 2);
- char chNext3 = styler.SafeGetCharAt(i + 3);
- if (chNext2 == '{' || chNext3 == '{')
- levelNext++;
- else
- if (chNext2 == '}' || chNext3 == '}')
- levelNext--;
- }
- }
- break;
- case SCE_MYSQL_HIDDENCOMMAND:
- if (style != stylePrev)
- levelNext++;
- else
- if (style != styleNext)
- levelNext--;
- break;
- case SCE_MYSQL_OPERATOR:
- if (currentChar == '(')
- levelNext++;
- else
- if (currentChar == ')')
- levelNext--;
- break;
- case SCE_MYSQL_MAJORKEYWORD:
- case SCE_MYSQL_KEYWORD:
- case SCE_MYSQL_FUNCTION:
- case SCE_MYSQL_PROCEDUREKEYWORD:
- // Reserved and other keywords.
- if (style != stylePrev)
- {
- bool beginFound = MatchIgnoreCase(styler, i, "begin");
- bool ifFound = MatchIgnoreCase(styler, i, "if");
- bool thenFound = MatchIgnoreCase(styler, i, "then");
- bool whileFound = MatchIgnoreCase(styler, i, "while");
- bool loopFound = MatchIgnoreCase(styler, i, "loop");
- bool repeatFound = MatchIgnoreCase(styler, i, "repeat");
-
- if (!foldOnlyBegin && endFound && (ifFound || whileFound || loopFound))
- {
- endFound = false;
- levelNext--;
- if (levelNext < SC_FOLDLEVELBASE)
- levelNext = SC_FOLDLEVELBASE;
-
- // Note that "else" is special here. It may or may not be followed by an "if .. then",
- // but in any case the level stays the same. When followed by an "if .. then" the level
- // will be increased later, if not, then at eol.
- }
- else
- if (!foldOnlyBegin && MatchIgnoreCase(styler, i, "else"))
- {
- levelNext--;
- elseFound = true;
- }
- else
- if (!foldOnlyBegin && thenFound)
- {
- if (whenFound)
- whenFound = false;
- else
- levelNext++;
- }
- else
- if (ifFound)
- elseFound = false;
- else
- if (MatchIgnoreCase(styler, i, "when"))
- whenFound = true;
- else
- {
- if (beginFound)
- levelNext++;
- else
- if (!foldOnlyBegin && (loopFound || repeatFound || whileFound))
- {
- if (endFound)
- endFound = false;
- else
- levelNext++;
- }
- else
- if (MatchIgnoreCase(styler, i, "end"))
- {
- // Multiple "end" in a row are counted multiple times!
- if (endFound)
- {
- levelNext--;
- if (levelNext < SC_FOLDLEVELBASE)
- levelNext = SC_FOLDLEVELBASE;
- }
- endFound = true;
- whenFound = false;
- }
- }
- }
- break;
- }
-
- // Handle the case of a trailing end without an if / while etc, as in the case of a begin.
- if (endFound)
- {
- endFound = false;
- levelNext--;
- if (levelNext < SC_FOLDLEVELBASE)
- levelNext = SC_FOLDLEVELBASE;
- }
-
- if (atEOL)
- {
- if (elseFound)
- {
- levelNext++;
- elseFound = false;
- }
-
- int levelUse = levelCurrent;
- int lev = levelUse | levelNext << 16;
- if (visibleChars == 0 && foldCompact)
- lev |= SC_FOLDLEVELWHITEFLAG;
- if (levelUse < levelNext)
- lev |= SC_FOLDLEVELHEADERFLAG;
- if (lev != styler.LevelAt(lineCurrent))
- styler.SetLevel(lineCurrent, lev);
-
- lineCurrent++;
- levelCurrent = levelNext;
- visibleChars = 0;
- endFound = false;
- whenFound = false;
- }
-
- if (!isspacechar(currentChar))
- visibleChars++;
- }
-}
-
-//--------------------------------------------------------------------------------------------------
-
-static const char * const mysqlWordListDesc[] = {
- "Major Keywords",
- "Keywords",
- "Database Objects",
- "Functions",
- "System Variables",
- "Procedure keywords",
- "User Keywords 1",
- "User Keywords 2",
- "User Keywords 3",
- 0
-};
-
-LexerModule lmMySQL(SCLEX_MYSQL, ColouriseMySQLDoc, "mysql", FoldMySQLDoc, mysqlWordListDesc);
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