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-rw-r--r--src/LexMySQL.cxx367
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diff --git a/src/LexMySQL.cxx b/src/LexMySQL.cxx
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+// Scintilla source code edit control
+/** @file LexMySQL.cxx
+ ** Lexer for MySQL
+ **/
+// 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 == '+');
+}
+
+static void ColouriseMySQLDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
+ Accessor &styler) {
+
+ WordList &major_keywords = *keywordlists[0];
+ WordList &keywords = *keywordlists[1];
+ WordList &database_objects = *keywordlists[2];
+ WordList &functions = *keywordlists[3];
+ WordList &system_variables = *keywordlists[4];
+ WordList &procedure_keywords = *keywordlists[5];
+ WordList &kw_user1 = *keywordlists[6];
+ WordList &kw_user2 = *keywordlists[7];
+ WordList &kw_user3 = *keywordlists[8];
+
+ 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:
+ if (!IsAWordChar(sc.ch)) {
+ int nextState = SCE_MYSQL_DEFAULT;
+ char s[1000];
+ sc.GetCurrentLowered(s, sizeof(s));
+ if (major_keywords.InList(s)) {
+ sc.ChangeState(SCE_MYSQL_MAJORKEYWORD);
+ } else if (keywords.InList(s)) {
+ sc.ChangeState(SCE_MYSQL_KEYWORD);
+ } else if (database_objects.InList(s)) {
+ sc.ChangeState(SCE_MYSQL_DATABASEOBJECT);
+ } else if (functions.InList(s)) {
+ sc.ChangeState(SCE_MYSQL_FUNCTION);
+ } else if (procedure_keywords.InList(s)) {
+ sc.ChangeState(SCE_MYSQL_PROCEDUREKEYWORD);
+ } else if (kw_user1.InList(s)) {
+ sc.ChangeState(SCE_MYSQL_USER1);
+ } else if (kw_user2.InList(s)) {
+ sc.ChangeState(SCE_MYSQL_USER2);
+ } else if (kw_user3.InList(s)) {
+ sc.ChangeState(SCE_MYSQL_USER3);
+ }
+ sc.SetState(nextState);
+ }
+ break;
+ case SCE_MYSQL_VARIABLE:
+ if (!IsAWordChar(sc.ch)) {
+ sc.SetState(SCE_MYSQL_DEFAULT);
+ }
+ break;
+ case SCE_MYSQL_SYSTEMVARIABLE:
+ if (!IsAWordChar(sc.ch)) {
+ char s[1000];
+ sc.GetCurrentLowered(s, sizeof(s));
+// Check for known system variables here.
+ if (system_variables.InList(&s[2])) {
+ sc.ChangeState(SCE_MYSQL_KNOWNSYSTEMVARIABLE);
+ }
+ sc.SetState(SCE_MYSQL_DEFAULT);
+ }
+ break;
+ case SCE_MYSQL_QUOTEDIDENTIFIER:
+ if (sc.ch == 0x60) {
+ if (sc.chNext == 0x60) {
+ sc.Forward(); // Ignore it
+ } else {
+ sc.ForwardSetState(SCE_MYSQL_DEFAULT);
+ }
+ }
+ break;
+ case SCE_MYSQL_COMMENT:
+ 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 == '\\') {
+ // Escape sequence
+ sc.Forward();
+ } else if (sc.ch == '\'') {
+ if (sc.chNext == '\'') {
+ sc.Forward();
+ } else {
+ sc.ChangeState(SCE_MYSQL_STRING);
+ sc.ForwardSetState(SCE_MYSQL_DEFAULT);
+ }
+ }
+ break;
+ case SCE_MYSQL_DQSTRING:
+ if (sc.ch == '\\') {
+ // Escape sequence
+ sc.Forward();
+ } else if (sc.ch == '\"') {
+ if (sc.chNext == '\"') {
+ sc.Forward();
+ } else {
+ sc.ChangeState(SCE_MYSQL_STRING);
+ sc.ForwardSetState(SCE_MYSQL_DEFAULT);
+ }
+ }
+ break;
+ }
+
+ // Determine if a new state should be entered.
+ if (sc.state == SCE_MYSQL_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);
+// Note that the order of SYSTEMVARIABLE and VARIABLE is important here.
+ } else if (sc.ch == 0x40 && sc.chNext == 0x40) {
+ sc.SetState(SCE_MYSQL_SYSTEMVARIABLE);
+ sc.Forward(); // Skip past the second at-sign.
+ } else if (sc.ch == 0x40) {
+ sc.SetState(SCE_MYSQL_VARIABLE);
+ } else if (sc.ch == 0x60) {
+ sc.SetState(SCE_MYSQL_QUOTEDIDENTIFIER);
+ } else if (sc.Match('/', '*')) {
+ sc.SetState(SCE_MYSQL_COMMENT);
+ sc.Forward(); // Eat the * so it isn't used for the end of the comment
+ } else if (sc.Match('-', '-') || sc.Match('#')) {
+ sc.SetState(SCE_MYSQL_COMMENTLINE);
+ } else if (sc.ch == '\'') {
+ sc.SetState(SCE_MYSQL_SQSTRING);
+ } else if (sc.ch == '\"') {
+ sc.SetState(SCE_MYSQL_DQSTRING);
+ } else if (isoperator(static_cast<char>(sc.ch))) {
+ sc.SetState(SCE_MYSQL_OPERATOR);
+ }
+ }
+ }
+ sc.Complete();
+}
+
+static bool IsStreamCommentStyle(int style) {
+ return style == SCE_MYSQL_COMMENT;
+}
+
+// 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;
+
+ unsigned int endPos = startPos + length;
+ int visibleChars = 0;
+ int lineCurrent = styler.GetLine(startPos);
+ int levelCurrent = SC_FOLDLEVELBASE;
+ 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 whenFound = false;
+ bool elseFound = false;
+ 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 (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 (foldComment && (style == SCE_MYSQL_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--;
+ }
+ }
+ }
+ if (style == SCE_MYSQL_OPERATOR) {
+ if (ch == '(') {
+ levelNext++;
+ } else if (ch == ')') {
+ levelNext--;
+ }
+ }
+
+// Style new keywords here.
+ if ((style == SCE_MYSQL_MAJORKEYWORD && stylePrev != SCE_MYSQL_MAJORKEYWORD)
+ || (style == SCE_MYSQL_KEYWORD && stylePrev != SCE_MYSQL_KEYWORD)
+ || (style == SCE_MYSQL_PROCEDUREKEYWORD && stylePrev != SCE_MYSQL_PROCEDUREKEYWORD)) {
+ const int MAX_KW_LEN = 6; // 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 (!foldOnlyBegin && endFound && (strcmp(s, "if") == 0 || strcmp(s, "while") == 0 || strcmp(s, "loop") == 0)) {
+ endFound = false;
+ levelNext--;
+ if (levelNext < SC_FOLDLEVELBASE) {
+ levelNext = SC_FOLDLEVELBASE;
+ }
+// Note that else is special here. It may or may be followed by an if then, but in aly case the level stays the
+// same. When followed by a if .. then, the level will be increased later, if not, at eol.
+ } else if (!foldOnlyBegin && strcmp(s, "else") == 0) {
+ levelNext--;
+ elseFound = true;
+ } else if (!foldOnlyBegin && strcmp(s, "then") == 0) {
+ if(whenFound) {
+ whenFound = false;
+ } else {
+ levelNext++;
+ }
+ } else if (strcmp(s, "if") == 0) {
+ elseFound = false;
+ } else if (strcmp(s, "when") == 0) {
+ whenFound = true;
+ } else if (strcmp(s, "begin") == 0) {
+ levelNext++;
+ } else if (!foldOnlyBegin && (strcmp(s, "loop") == 0 || strcmp(s, "repeat") == 0
+ || strcmp(s, "while") == 0)) {
+ if(endFound) {
+ endFound = false;
+ } else {
+ levelNext++;
+ }
+ } else if (strcmp(s, "end") == 0) {
+// Multiple END in a row are counted multiple times!
+ if (endFound) {
+ levelNext--;
+ if (levelNext < SC_FOLDLEVELBASE) {
+ levelNext = SC_FOLDLEVELBASE;
+ }
+ }
+ endFound = true;
+ whenFound = false;
+ }
+ }
+// Handle this for a trailing end withiut 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(ch)) {
+ 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"
+};
+
+ LexerModule lmMySQL(SCLEX_MYSQL, ColouriseMySQLDoc, "mysql", FoldMySQLDoc, mysqlWordListDesc);
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-12 17:02:32 +0000