Add flags to omit/reject padding in scientific notation exponents

The EcmaScript format for printing doubles in exponent form differs
from Qt's format only in this aspect. EcmaScript explicitly prohibits
leading zeroes in exponents. It is thus worthwhile to add those flags
in order to be able to generate and parse doubles in compliance with
EcmaScript.

[ChangeLog][QtCore][QLocale] Additional flags in QLocale::NumberOption
allow generating and parsing doubles in EcmaScript compliant format.

Change-Id: Ia7b82c2e67bb8b80bd890014ff5cd4563faf2a03
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/corelib/tools/qlocale_tools.cpp b/src/corelib/tools/qlocale_tools.cpp
index 890f63af0a..cdc654904e 100644
--- a/src/corelib/tools/qlocale_tools.cpp
+++ b/src/corelib/tools/qlocale_tools.cpp
@@ -495,7 +495,8 @@ QString &exponentForm(QChar zero, QChar decimal, QChar exponential,
                       QChar group, QChar plus, QChar minus,
                       QString &digits, int decpt, int precision,
                       PrecisionMode pm,
-                      bool always_show_decpt)
+                      bool always_show_decpt,
+                      bool leading_zero_in_exponent)
 {
     int exp = decpt - 1;
 
@@ -515,7 +516,7 @@ QString &exponentForm(QChar zero, QChar decimal, QChar exponential,
 
     digits.append(exponential);
     digits.append(QLocaleData::longLongToString(zero, group, plus, minus,
-                   exp, 2, 10, -1, QLocaleData::AlwaysShowSign));
+                   exp, leading_zero_in_exponent ? 2 : 1, 10, -1, QLocaleData::AlwaysShowSign));
 
     return digits;
 }