Compiles, links and runs (functionality not tested)

2017-08-23 13:27:23 +02:00 · 2017-08-23 13:27:23 +02:00 · 6a97c0447a
commit 6a97c0447a
parent 04723a289b
48 changed files with 224 additions and 149 deletions
--- a/pglab/SqlHighlighter.cpp
+++ b/pglab/SqlHighlighter.cpp
@ -0,0 +1,92 @@
+#include "SqlHighlighter.h"
+
+// static const wchar_t *keywords[] = {
+// 	L"as", L"alter", L"all", L"and", L"any", L"by", L"char", L"column", L"create", L"database", L"date", L"from", L"full", L"group", L"having",
+// 	L"in", L"inner", L"int", L"join", L"left", L"not", L"numeric", L"or", L"order", L"outer", L"right", L"select", L"smallint", L"table", L"time",
+// 	L"timestamp", L"timestamptz", L"varchar", L"where"
+// };
+// 
+// static const wchar_t *operators[] = {
+// 	L"+", L"-", L"*", L"/", L"<", L">", L"<=", L">=", L"<>", L"!=", L"~"
+// };
+
+
+/*
+
+   + - * / < > = ~ ! @ # % ^ & | ` ?
+
+There are a few restrictions on your choice of name:
+
+	-- and C-comment start cannot appear anywhere in an operator name, since they will be taken as the start of a comment.
+
+	A multicharacter operator name cannot end in + or -, unless the name also contains at least one of these characters:
+
+	~ ! @ # % ^ & | ` ?
+	For example, @- is an allowed operator name, but *- is not. This restriction allows PostgreSQL to parse SQL-compliant commands without requiring spaces between tokens.
+
+	The use of => as an operator name is deprecated. It may be disallowed altogether in a future release.
+
+The operator != is mapped to <> on input, so these two names are always equivalent.
+
+ - * / < > =
+
+*/
+
+//static auto types = R"-(bigint|boolean|char|character varying|date|int[248]|integer|numeric|smallint|time|timestamp(?:tz)?|timestamp(?:\s+with\s+timezone)?|varchar)-";
+//static auto err = R"-(left|right|inner|outer)-";
+
+//	static_assert(sizeof(keywords)/4 == 25,
+//					  "sizeof keywords");
+
+
+SqlHighlighter::SqlHighlighter(QTextDocument *parent)
+	: QSyntaxHighlighter(parent)
+{
+//	{
+		static auto keywords =
+				R"-(\balter\b|\ball\b|\band\b|\bany\b|\bas\b|\bby\b|\bcascade\b|\bcheck\b|\bcolumn\b|\bcopy\b|\bcreate\b|\bdatabase\b|\bdefault\b|\bdelete\b)-"
+				R"-(|\foreign\b|\bfrom\b|\bgroup\b|\bhaving\b|\bin\b|\bindex\b|\bis\b|\bkey\b|\blimit\b|\bnatural\b|\bnot\b|\bnull\b|\boffset\b|\bon\b)-"
+				R"-(|\bor\b|\border\b|\bover\b|\bparition\b|\bprimary\b|\breferences\b|\brestrict\b|\bselect\b|\btable\b|\btruncate\b|\bunique\b|\bupdate\b|\busing\b)-"
+				R"-(|\bwhere\b|\bwith\b|(?:(?:inner|(?:left|right|full)(\s+outer)?)\s+)?join)-";
+
+		// into temp DISTINCT true false
+
+		static auto types =
+				R"-(\bbigint\b|\bboolean\b|\bchar\b|\bcharacter varying\b|\bdate\b|\bint[248]\b|\binteger\b|\bnumeric\b|\bsmallint\b)-"
+				R"-(|\btime\b|\btimestamp(?:tz)?\b|\btimestamp(?:\s+with\s+time\s+zone)?\b|\bvarchar\b)-";
+//		static auto err = R"-(left|right|inner|outer)-";
+
+//		QTextCharFormat errFormat;
+//		errFormat.setForeground(QColor(255, 128, 128));
+//		errFormat.setFontWeight(QFont::Bold);
+//		highlightingRules.emplace_back(QRegExp(err, Qt::CaseInsensitive), errFormat);
+
+		QTextCharFormat keywordFormat;
+		keywordFormat.setForeground(QColor(64, 64, 192));
+		keywordFormat.setFontWeight(QFont::Bold);
+		highlightingRules.emplace_back(QRegExp(keywords, Qt::CaseInsensitive), keywordFormat);
+
+		QTextCharFormat typesFormat;
+		typesFormat.setForeground(QColor(64, 192, 64));
+		typesFormat.setFontWeight(QFont::Bold);
+		highlightingRules.emplace_back(QRegExp(types, Qt::CaseInsensitive), typesFormat);
+
+//	}
+}
+
+void SqlHighlighter::highlightBlock(const QString &text)
+{
+	foreach (const HighlightingRule &rule, highlightingRules) {
+		QRegExp expression(rule.pattern);
+		int index = expression.indexIn(text);
+		while (index >= 0) {
+			int length = expression.matchedLength();
+			setFormat(index, length, rule.format);
+			index = expression.indexIn(text, index + length);
+		}
+	}
+	setCurrentBlockState(0);
+}
+
+
+