fa9787adfd
This also makes it clearer the command was executed succesfully. Times are now printed with no more then two decimals. This prevents confusion between thousand and decimal seperators.
118 lines
3.7 KiB
C++
118 lines
3.7 KiB
C++
#include "SqlHighlighter.h"
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static const wchar_t *keywords[] = {
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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",
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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",
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L"timestamp", L"timestamptz", L"varchar", L"where"
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};
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static const wchar_t *operators[] = {
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L"+", L"-", L"*", L"/", L"<", L">", L"<=", L">=", L"<>", L"!=", L"~"
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};
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//static auto types = R"-(bigint|boolean|char|character varying|date|int[248]|integer|numeric|smallint|time|timestamp(?:tz)?|timestamp(?:\s+with\s+timezone)?|varchar)-";
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//static auto err = R"-(left|right|inner|outer)-";
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// static_assert(sizeof(keywords)/4 == 25,
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// "sizeof keywords");
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SqlHighlighter::SqlHighlighter(QTextDocument *parent)
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: QSyntaxHighlighter(parent)
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{
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// {
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static auto keywords = R"-(as|alter|all|and|any|by|column|create|database|delete|from|group|having|in|not|or|order|select|set|table|update|where|(?:(?:inner|(?:left|right|full)(\s+outer)?)\s+)?join)-";
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// static auto types = R"-(bigint|boolean|char|character varying|date|int[248]|integer|numeric|smallint|time|timestamp(?:tz)?|timestamp(?:\s+with\s+timezone)?|varchar)-";
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// static auto err = R"-(left|right|inner|outer)-";
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// QTextCharFormat errFormat;
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// errFormat.setForeground(QColor(255, 128, 128));
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// errFormat.setFontWeight(QFont::Bold);
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// highlightingRules.emplace_back(QRegExp(err, Qt::CaseInsensitive), errFormat);
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QTextCharFormat keywordFormat;
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keywordFormat.setForeground(QColor(128, 128, 255));
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keywordFormat.setFontWeight(QFont::Bold);
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highlightingRules.emplace_back(QRegExp(keywords, Qt::CaseInsensitive), keywordFormat);
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// QTextCharFormat typesFormat;
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// typesFormat.setForeground(QColor(128, 255, 128));
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// typesFormat.setFontWeight(QFont::Bold);
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// highlightingRules.emplace_back(QRegExp(types, Qt::CaseInsensitive), typesFormat);
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// }
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}
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namespace {
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// Advances ofs to first whitespace or end of string, returns false at end of string
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void skipWhiteSpace(const QString &in, int &ofs)
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{
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const int l = in.length();
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while (ofs < l && in.at(ofs).isSpace()) ++ofs;
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}
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enum class BasicTokenType {
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None,
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End, // End of input
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Symbol, // can be many things, keyword, object name, operator, ..
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Comment,
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QuotedString,
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DollarQuotedString,
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QuotedIdentifier
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};
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/**
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* @brief NextBasicToken
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* @param in
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* @param ofs
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* @param start
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* @param length
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* @return false when input seems invalid, it will return what it did recognize but something wasn't right, parser should try to recover
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*/
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bool NextBasicToken(const QString &in, int ofs, int &start, int &length, BasicTokenType &tokentype)
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{
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// Basically chops based on white space
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// it does also recognize comments and quoted strings/identifiers
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bool result = false;
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skipWhiteSpace(in, ofs);
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const int len = in.length();
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while (ofs < len) {
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if (ofs+1 < len && in.at(ofs) == L'-' && in.at(ofs+1) == L'-') {
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// Start of comment, end of line is end of comment
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}
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else if (in.at(ofs) == L'\'') {
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// Start of quoted string
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}
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else if (in.at(ofs) == L'"') {
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// Start of quoted identifier
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}
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else if (in.at(ofs) == L'/' && ofs+1 < len && in.at(ofs+1) == L'*') {
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// Start of C style comment, scan for end
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}
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}
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return result;
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}
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}
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void SqlHighlighter::highlightBlock(const QString &text)
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{
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foreach (const HighlightingRule &rule, highlightingRules) {
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QRegExp expression(rule.pattern);
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int index = expression.indexIn(text);
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while (index >= 0) {
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int length = expression.matchedLength();
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setFormat(index, length, rule.format);
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index = expression.indexIn(text, index + length);
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}
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}
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setCurrentBlockState(0);
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}
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