You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
343 lines
10 KiB
343 lines
10 KiB
// Scintilla source code edit control
|
|
/** @file LexSQL.cxx
|
|
** Lexer for SQL, including PL/SQL and SQL*Plus.
|
|
**/
|
|
// 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"
|
|
|
|
static inline bool IsAWordChar(int ch) {
|
|
return (ch < 0x80) && (isalnum(ch) || 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 ColouriseSQLDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
|
|
Accessor &styler) {
|
|
|
|
WordList &keywords1 = *keywordlists[0];
|
|
WordList &keywords2 = *keywordlists[1];
|
|
WordList &kw_pldoc = *keywordlists[2];
|
|
WordList &kw_sqlplus = *keywordlists[3];
|
|
WordList &kw_user1 = *keywordlists[4];
|
|
WordList &kw_user2 = *keywordlists[5];
|
|
WordList &kw_user3 = *keywordlists[6];
|
|
WordList &kw_user4 = *keywordlists[7];
|
|
|
|
StyleContext sc(startPos, length, initStyle, styler);
|
|
|
|
bool sqlBackslashEscapes = styler.GetPropertyInt("sql.backslash.escapes", 0) != 0;
|
|
bool sqlBackticksIdentifier = styler.GetPropertyInt("lexer.sql.backticks.identifier", 0) != 0;
|
|
int styleBeforeDCKeyword = SCE_SQL_DEFAULT;
|
|
for (; sc.More(); sc.Forward()) {
|
|
// Determine if the current state should terminate.
|
|
switch (sc.state) {
|
|
case SCE_SQL_OPERATOR:
|
|
sc.SetState(SCE_SQL_DEFAULT);
|
|
break;
|
|
case SCE_SQL_NUMBER:
|
|
// We stop the number definition on non-numerical non-dot non-eE non-sign char
|
|
if (!IsANumberChar(sc.ch)) {
|
|
sc.SetState(SCE_SQL_DEFAULT);
|
|
}
|
|
break;
|
|
case SCE_SQL_IDENTIFIER:
|
|
if (!IsAWordChar(sc.ch)) {
|
|
int nextState = SCE_SQL_DEFAULT;
|
|
char s[1000];
|
|
sc.GetCurrentLowered(s, sizeof(s));
|
|
if (keywords1.InList(s)) {
|
|
sc.ChangeState(SCE_SQL_WORD);
|
|
} else if (keywords2.InList(s)) {
|
|
sc.ChangeState(SCE_SQL_WORD2);
|
|
} else if (kw_sqlplus.InListAbbreviated(s, '~')) {
|
|
sc.ChangeState(SCE_SQL_SQLPLUS);
|
|
if (strncmp(s, "rem", 3) == 0) {
|
|
nextState = SCE_SQL_SQLPLUS_COMMENT;
|
|
} else if (strncmp(s, "pro", 3) == 0) {
|
|
nextState = SCE_SQL_SQLPLUS_PROMPT;
|
|
}
|
|
} else if (kw_user1.InList(s)) {
|
|
sc.ChangeState(SCE_SQL_USER1);
|
|
} else if (kw_user2.InList(s)) {
|
|
sc.ChangeState(SCE_SQL_USER2);
|
|
} else if (kw_user3.InList(s)) {
|
|
sc.ChangeState(SCE_SQL_USER3);
|
|
} else if (kw_user4.InList(s)) {
|
|
sc.ChangeState(SCE_SQL_USER4);
|
|
}
|
|
sc.SetState(nextState);
|
|
}
|
|
break;
|
|
case SCE_SQL_QUOTEDIDENTIFIER:
|
|
if (sc.ch == 0x60) {
|
|
if (sc.chNext == 0x60) {
|
|
sc.Forward(); // Ignore it
|
|
} else {
|
|
sc.ForwardSetState(SCE_SQL_DEFAULT);
|
|
}
|
|
}
|
|
break;
|
|
case SCE_SQL_COMMENT:
|
|
if (sc.Match('*', '/')) {
|
|
sc.Forward();
|
|
sc.ForwardSetState(SCE_SQL_DEFAULT);
|
|
}
|
|
break;
|
|
case SCE_SQL_COMMENTDOC:
|
|
if (sc.Match('*', '/')) {
|
|
sc.Forward();
|
|
sc.ForwardSetState(SCE_SQL_DEFAULT);
|
|
} else if (sc.ch == '@' || sc.ch == '\\') { // Doxygen support
|
|
// Verify that we have the conditions to mark a comment-doc-keyword
|
|
if ((IsASpace(sc.chPrev) || sc.chPrev == '*') && (!IsASpace(sc.chNext))) {
|
|
styleBeforeDCKeyword = SCE_SQL_COMMENTDOC;
|
|
sc.SetState(SCE_SQL_COMMENTDOCKEYWORD);
|
|
}
|
|
}
|
|
break;
|
|
case SCE_SQL_COMMENTLINE:
|
|
case SCE_SQL_COMMENTLINEDOC:
|
|
case SCE_SQL_SQLPLUS_COMMENT:
|
|
case SCE_SQL_SQLPLUS_PROMPT:
|
|
if (sc.atLineStart) {
|
|
sc.SetState(SCE_SQL_DEFAULT);
|
|
}
|
|
break;
|
|
case SCE_SQL_COMMENTDOCKEYWORD:
|
|
if ((styleBeforeDCKeyword == SCE_SQL_COMMENTDOC) && sc.Match('*', '/')) {
|
|
sc.ChangeState(SCE_SQL_COMMENTDOCKEYWORDERROR);
|
|
sc.Forward();
|
|
sc.ForwardSetState(SCE_SQL_DEFAULT);
|
|
} else if (!IsADoxygenChar(sc.ch)) {
|
|
char s[100];
|
|
sc.GetCurrentLowered(s, sizeof(s));
|
|
if (!isspace(sc.ch) || !kw_pldoc.InList(s + 1)) {
|
|
sc.ChangeState(SCE_SQL_COMMENTDOCKEYWORDERROR);
|
|
}
|
|
sc.SetState(styleBeforeDCKeyword);
|
|
}
|
|
break;
|
|
case SCE_SQL_CHARACTER:
|
|
if (sqlBackslashEscapes && sc.ch == '\\') {
|
|
sc.Forward();
|
|
} else if (sc.ch == '\'') {
|
|
if (sc.chNext == '\"') {
|
|
sc.Forward();
|
|
} else {
|
|
sc.ForwardSetState(SCE_SQL_DEFAULT);
|
|
}
|
|
}
|
|
break;
|
|
case SCE_SQL_STRING:
|
|
if (sc.ch == '\\') {
|
|
// Escape sequence
|
|
sc.Forward();
|
|
} else if (sc.ch == '\"') {
|
|
if (sc.chNext == '\"') {
|
|
sc.Forward();
|
|
} else {
|
|
sc.ForwardSetState(SCE_SQL_DEFAULT);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Determine if a new state should be entered.
|
|
if (sc.state == SCE_SQL_DEFAULT) {
|
|
if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
|
|
sc.SetState(SCE_SQL_NUMBER);
|
|
} else if (IsAWordStart(sc.ch)) {
|
|
sc.SetState(SCE_SQL_IDENTIFIER);
|
|
} else if (sc.ch == 0x60 && 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 == '#') {
|
|
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();
|
|
}
|
|
|
|
static bool IsStreamCommentStyle(int style) {
|
|
return style == SCE_SQL_COMMENT ||
|
|
style == SCE_SQL_COMMENTDOC ||
|
|
style == SCE_SQL_COMMENTDOCKEYWORD ||
|
|
style == SCE_SQL_COMMENTDOCKEYWORDERROR;
|
|
}
|
|
|
|
// 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 FoldSQLDoc(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;
|
|
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_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--;
|
|
}
|
|
}
|
|
}
|
|
if (style == SCE_SQL_OPERATOR) {
|
|
if (ch == '(') {
|
|
levelNext++;
|
|
} else if (ch == ')') {
|
|
levelNext--;
|
|
}
|
|
}
|
|
// 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 = 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) && (strcmp(s, "if") == 0 || strcmp(s, "loop") == 0)) {
|
|
if (endFound) {
|
|
// ignore
|
|
endFound = false;
|
|
} else {
|
|
levelNext++;
|
|
}
|
|
} else if (strcmp(s, "begin") == 0) {
|
|
levelNext++;
|
|
} else if (strcmp(s, "end") == 0 ||
|
|
// DROP TABLE IF EXISTS or CREATE TABLE IF NOT EXISTS
|
|
strcmp(s, "exists") == 0) {
|
|
endFound = true;
|
|
levelNext--;
|
|
if (levelNext < SC_FOLDLEVELBASE) {
|
|
levelNext = SC_FOLDLEVELBASE;
|
|
}
|
|
}
|
|
}
|
|
if (atEOL) {
|
|
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;
|
|
}
|
|
if (!isspacechar(ch)) {
|
|
visibleChars++;
|
|
}
|
|
}
|
|
}
|
|
|
|
static const char * const sqlWordListDesc[] = {
|
|
"Keywords",
|
|
"Database Objects",
|
|
"PLDoc",
|
|
"SQL*Plus",
|
|
"User Keywords 1",
|
|
"User Keywords 2",
|
|
"User Keywords 3",
|
|
"User Keywords 4",
|
|
0
|
|
};
|
|
|
|
LexerModule lmSQL(SCLEX_SQL, ColouriseSQLDoc, "sql", FoldSQLDoc, sqlWordListDesc);
|