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refactor: added separate regex for single slash and minor change 

Also added lazy evaluator operator for single, double sign regex
and regex for multiline code for performance reason. Added missing
QStringLiteral
reviewable/pr4593/r6
noavarice 8 years ago committed by noavarice
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d48a479a39
commit
7b74cc5019
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1 changed files with 32 additions and 22 deletions
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  1. 54
      src/chatlog/textformatter.cpp

54
src/chatlog/textformatter.cpp
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@ -23,46 +23,56 @@ @@ -23,46 +23,56 @@
// clang-format off
/* Easy way to get count of markdown symbols - through length of substring, captured by regex group.
/* Easy way to get count of markdown symbols - through length of substring, captured by reex group.
* If you suppose to change regexes, assure that this const points to right group.
*/
static constexpr uint8_t MARKDOWN_SYMBOLS_GROUP_INDEX = 1;
static const QString SINGLE_SIGN_PATTERN = QStringLiteral("(?<=^|\\s|\\n)"
static const QString SINGLE_SIGN_PATTERN = QStringLiteral("(?<=^|[\\s\\n])"
"([%1])"
"(?!\\s)"
"[^%1\\n]+"
"[^%1\\n]+?"
"(?<!\\s)"
"[%1]"
"(?=$|\\s|\\n)");
"(?=$|[\\s\\n])");
static const QString DOUBLE_SIGN_PATTERN = QStringLiteral("(?<=^|\\s|\\n)"
static const QString SINGLE_SLASH_PATTERN = QStringLiteral("(?<=^|[\\s\\n])"
"(/)"
"(?!\\s)"
"[^/\\n]+?"
"(?<!\\s)"
"/"
"(?=$|[\\s\\n])");
static const QString DOUBLE_SIGN_PATTERN = QStringLiteral("(?<=^|[\\s\\n])"
"([%1]{2})"
"(?!\\s)"
"[^\\n]+"
"[^\\n]+?"
"(?<!\\s)"
"[%1]{2}"
"(?=$|\\s|\\n)");
"(?=$|[\\s\\n])");
static const QString MULTILINE_CODE = QStringLiteral("(?<=^|[^`])"
static const QString MULTILINE_CODE = QStringLiteral("(?<=^|[\\s\\n])"
"(```)"
"(?!`)"
"(.|\\n)+"
"(?<!`)"
"(?![`\\s\\n])"
"(.|\\n)+?"
"(?<![`\\s\\n])"
"```"
"(?=$|[^`])");
"(?=$|[\\s\\n])");
static const QPair<QRegularExpression, QString> REGEX_TO_WRAPPER[] {
{QRegularExpression(SINGLE_SIGN_PATTERN.arg('*')), "<b>%1</b>"},
{QRegularExpression(SINGLE_SIGN_PATTERN.arg('/')), "<i>%1</i>"},
{QRegularExpression(SINGLE_SIGN_PATTERN.arg('_')), "<u>%1</u>"},
{QRegularExpression(SINGLE_SIGN_PATTERN.arg('~')), "<s>%1</s>"},
{QRegularExpression(SINGLE_SIGN_PATTERN.arg('`')),"<font color=#595959><code>%1</code></font>"},
{QRegularExpression(DOUBLE_SIGN_PATTERN.arg('*')), "<b>%1</b>"},
{QRegularExpression(DOUBLE_SIGN_PATTERN.arg('/')), "<i>%1</i>"},
{QRegularExpression(DOUBLE_SIGN_PATTERN.arg('_')), "<u>%1</u>"},
{QRegularExpression(DOUBLE_SIGN_PATTERN.arg('~')), "<s>%1</s>"},
{QRegularExpression(MULTILINE_CODE), "<font color=#595959><code>%1</code></font>"}};
{QRegularExpression(SINGLE_SLASH_PATTERN), QStringLiteral("<i>%1</i>")},
{QRegularExpression(SINGLE_SIGN_PATTERN.arg('*')), QStringLiteral("<b>%1</b>")},
{QRegularExpression(SINGLE_SIGN_PATTERN.arg('_')), QStringLiteral("<u>%1</u>")},
{QRegularExpression(SINGLE_SIGN_PATTERN.arg('~')), QStringLiteral("<s>%1</s>")},
{QRegularExpression(SINGLE_SIGN_PATTERN.arg('`')), QStringLiteral("<font color=#595959><code>"
"%1</code></font>")},
{QRegularExpression(DOUBLE_SIGN_PATTERN.arg('*')), QStringLiteral("<b>%1</b>")},
{QRegularExpression(DOUBLE_SIGN_PATTERN.arg('/')), QStringLiteral("<i>%1</i>")},
{QRegularExpression(DOUBLE_SIGN_PATTERN.arg('_')), QStringLiteral("<u>%1</u>")},
{QRegularExpression(DOUBLE_SIGN_PATTERN.arg('~')), QStringLiteral("<s>%1</s>")},
{QRegularExpression(MULTILINE_CODE), QStringLiteral("<font color=#595959><code>"
"%1</code></font>")}};
static const QString HREF_WRAPPER = QStringLiteral(R"(<a href="%1">%1</a>)");

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