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// Scintilla source code edit control
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** Lexer for SQL, including PL/SQL and SQL*Plus.
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// Copyright 1998-2005 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 "StyleContext.h"
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#include "Scintilla.h"
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using namespace Scintilla;
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static inline bool IsAWordChar(int ch) {
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return (ch < 0x80) && (isalnum(ch) || ch == '_');
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static inline bool IsAWordStart(int ch) {
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return (ch < 0x80) && (isalpha(ch) || ch == '_');
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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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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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(isdigit(ch) || toupper(ch) == 'E' ||
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ch == '.' || ch == '-' || ch == '+');
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static void ColouriseSQLDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
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WordList &keywords1 = *keywordlists[0];
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WordList &keywords2 = *keywordlists[1];
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WordList &kw_pldoc = *keywordlists[2];
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WordList &kw_sqlplus = *keywordlists[3];
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WordList &kw_user1 = *keywordlists[4];
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WordList &kw_user2 = *keywordlists[5];
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WordList &kw_user3 = *keywordlists[6];
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WordList &kw_user4 = *keywordlists[7];
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StyleContext sc(startPos, length, initStyle, styler);
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bool sqlBackslashEscapes = styler.GetPropertyInt("sql.backslash.escapes", 0) != 0;
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bool sqlBackticksIdentifier = styler.GetPropertyInt("lexer.sql.backticks.identifier", 0) != 0;
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int styleBeforeDCKeyword = SCE_SQL_DEFAULT;
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for (; sc.More(); sc.Forward()) {
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// Determine if the current state should terminate.
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case SCE_SQL_OPERATOR:
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sc.SetState(SCE_SQL_DEFAULT);
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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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case SCE_SQL_IDENTIFIER:
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if (!IsAWordChar(sc.ch)) {
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int nextState = SCE_SQL_DEFAULT;
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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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} 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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sc.SetState(nextState);
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case SCE_SQL_QUOTEDIDENTIFIER:
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if (sc.chNext == 0x60) {
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sc.Forward(); // Ignore it
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sc.ForwardSetState(SCE_SQL_DEFAULT);
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case SCE_SQL_COMMENT:
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if (sc.Match('*', '/')) {
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sc.ForwardSetState(SCE_SQL_DEFAULT);
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case SCE_SQL_COMMENTDOC:
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if (sc.Match('*', '/')) {
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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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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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case SCE_SQL_COMMENTDOCKEYWORD:
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if ((styleBeforeDCKeyword == SCE_SQL_COMMENTDOC) && sc.Match('*', '/')) {
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sc.ChangeState(SCE_SQL_COMMENTDOCKEYWORDERROR);
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sc.ForwardSetState(SCE_SQL_DEFAULT);
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} else if (!IsADoxygenChar(sc.ch)) {
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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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sc.SetState(styleBeforeDCKeyword);
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case SCE_SQL_CHARACTER:
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if (sqlBackslashEscapes && sc.ch == '\\') {
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} else if (sc.ch == '\'') {
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if (sc.chNext == '\"') {
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sc.ForwardSetState(SCE_SQL_DEFAULT);
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} else if (sc.ch == '\"') {
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if (sc.chNext == '\"') {
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sc.ForwardSetState(SCE_SQL_DEFAULT);
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// Determine if a new state should be entered.
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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);
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} else if (IsAWordStart(sc.ch)) {
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sc.SetState(SCE_SQL_IDENTIFIER);
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} else if (sc.ch == 0x60 && sqlBackticksIdentifier) {
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sc.SetState(SCE_SQL_QUOTEDIDENTIFIER);
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} else if (sc.Match('/', '*')) {
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if (sc.Match("/**") || sc.Match("/*!")) { // Support of Doxygen doc. style
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sc.SetState(SCE_SQL_COMMENTDOC);
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sc.SetState(SCE_SQL_COMMENT);
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sc.Forward(); // Eat the * so it isn't used for the end of the comment
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} else if (sc.Match('-', '-')) {
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// MySQL requires a space or control char after --
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// http://dev.mysql.com/doc/mysql/en/ansi-diff-comments.html
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// Perhaps we should enforce that with proper property:
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//~ } else if (sc.Match("-- ")) {
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sc.SetState(SCE_SQL_COMMENTLINE);
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} else if (sc.ch == '#') {
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sc.SetState(SCE_SQL_COMMENTLINEDOC);
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} else if (sc.ch == '\'') {
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sc.SetState(SCE_SQL_CHARACTER);
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} else if (sc.ch == '\"') {
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sc.SetState(SCE_SQL_STRING);
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} else if (isoperator(static_cast<char>(sc.ch))) {
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sc.SetState(SCE_SQL_OPERATOR);
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static 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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// Store both the current line's fold level and the next lines in the
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// level store to make it easy to pick up with each increment.
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static void FoldSQLDoc(unsigned int startPos, int length, int initStyle,
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WordList *[], Accessor &styler) {
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bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
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bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
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bool foldOnlyBegin = styler.GetPropertyInt("fold.sql.only.begin", 0) != 0;
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unsigned int endPos = startPos + length;
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int visibleChars = 0;
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int lineCurrent = styler.GetLine(startPos);
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int levelCurrent = SC_FOLDLEVELBASE;
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if (lineCurrent > 0) {
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levelCurrent = styler.LevelAt(lineCurrent - 1) >> 16;
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int levelNext = levelCurrent;
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char chNext = styler[startPos];
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int styleNext = styler.StyleAt(startPos);
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int style = initStyle;
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bool endFound = false;
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for (unsigned int i = startPos; i < endPos; i++) {
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chNext = styler.SafeGetCharAt(i + 1);
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int stylePrev = style;
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styleNext = styler.StyleAt(i + 1);
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bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
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if (foldComment && IsStreamCommentStyle(style)) {
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if (!IsStreamCommentStyle(stylePrev)) {
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} else if (!IsStreamCommentStyle(styleNext) && !atEOL) {
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// Comments don't end at end of line and the next character may be unstyled.
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if (foldComment && (style == SCE_SQL_COMMENTLINE)) {
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// MySQL needs -- comments to be followed by space or control char
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if ((ch == '-') && (chNext == '-')) {
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char chNext2 = styler.SafeGetCharAt(i + 2);
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char chNext3 = styler.SafeGetCharAt(i + 3);
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if (chNext2 == '{' || chNext3 == '{') {
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} else if (chNext2 == '}' || chNext3 == '}') {
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if (style == SCE_SQL_OPERATOR) {
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} else if (ch == ')') {
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// If new keyword (cannot trigger on elseif or nullif, does less tests)
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if (style == SCE_SQL_WORD && stylePrev != SCE_SQL_WORD) {
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const int MAX_KW_LEN = 6; // Maximum length of folding keywords
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char s[MAX_KW_LEN + 2];
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for (; j < MAX_KW_LEN + 1; j++) {
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if (!iswordchar(styler[i + j])) {
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s[j] = static_cast<char>(tolower(styler[i + j]));
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if (j == MAX_KW_LEN + 1) {
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// Keyword too long, don't test it
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if ((!foldOnlyBegin) && (strcmp(s, "if") == 0 || strcmp(s, "loop") == 0)) {
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} else if (strcmp(s, "begin") == 0) {
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} else if (strcmp(s, "end") == 0 ||
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// DROP TABLE IF EXISTS or CREATE TABLE IF NOT EXISTS
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strcmp(s, "exists") == 0) {
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if (levelNext < SC_FOLDLEVELBASE) {
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levelNext = SC_FOLDLEVELBASE;
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int levelUse = levelCurrent;
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int lev = levelUse | levelNext << 16;
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if (visibleChars == 0 && foldCompact)
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lev |= SC_FOLDLEVELWHITEFLAG;
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if (levelUse < levelNext)
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lev |= SC_FOLDLEVELHEADERFLAG;
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if (lev != styler.LevelAt(lineCurrent)) {
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styler.SetLevel(lineCurrent, lev);
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levelCurrent = levelNext;
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if (!isspacechar(ch)) {
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static const char * const sqlWordListDesc[] = {
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LexerModule lmSQL(SCLEX_SQL, ColouriseSQLDoc, "sql", FoldSQLDoc, sqlWordListDesc);
added
removed
src/qscintilla2/src/LexSQL.cpp
