| 1 |
#include "highlighter.h" |
| 2 |
#include <QRegExp> |
| 3 |
#include <QTextCharFormat> |
| 4 |
#include <QTextDocument> |
| 5 |
|
| 6 |
Highlighter::Highlighter(QTextDocument *parent) |
| 7 |
: QSyntaxHighlighter(parent) |
| 8 |
{ |
| 9 |
HighlightingRule rule; |
| 10 |
|
| 11 |
//numbers |
| 12 |
rule.pattern = QRegExp("([-0-9.]+)(?!([^\"]*\"[\\s]*\\:))"); |
| 13 |
rule.format.setForeground(QColor(255,192,85)); |
| 14 |
rules.append(rule); |
| 15 |
|
| 16 |
//key |
| 17 |
rule.pattern = QRegExp ("(\"[^\"]*\")"); |
| 18 |
rule.format.setForeground(QColor(145,145,192)); |
| 19 |
rules.append(rule); |
| 20 |
|
| 21 |
//value |
| 22 |
rule.pattern = QRegExp(":\\s*([\"](?:[^\"])*[\"])"); |
| 23 |
rule.format.setForeground(QColor(145,145,192)); |
| 24 |
rules.append(rule); |
| 25 |
|
| 26 |
//reserved words |
| 27 |
rule.pattern = QRegExp("(true|false|null)(?!\"[^\"]*\")"); |
| 28 |
rule.format.setForeground(QColor(0,0,255)); |
| 29 |
rules.append(rule); |
| 30 |
} |
| 31 |
|
| 32 |
void Highlighter::highlightBlock(const QString &text) |
| 33 |
{ |
| 34 |
foreach (const HighlightingRule &rule, rules) { |
| 35 |
QRegExp expression(rule.pattern); |
| 36 |
int index = expression.indexIn(text); |
| 37 |
|
| 38 |
while (index >= 0) { |
| 39 |
index = expression.pos(1); |
| 40 |
int length = expression.cap(1).length(); |
| 41 |
setFormat(index, length, rule.format); |
| 42 |
index = expression.indexIn(text, index + length); |
| 43 |
} |
| 44 |
} |
| 45 |
} |
