tools: use rtl/character.hxx in tools/source/inet/inetmsg.cxx

Change-Id: I5e4b2abd5487a383af6a8e37a4c33a90d91ec2e4
Reviewed-on: https://gerrit.libreoffice.org/29610
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>
diff --git a/tools/source/inet/inetmsg.cxx b/tools/source/inet/inetmsg.cxx
index b488ff9..7208b5e 100644
--- a/tools/source/inet/inetmsg.cxx
+++ b/tools/source/inet/inetmsg.cxx
@@ -25,20 +25,10 @@
#include <tools/contnr.hxx>
#include <rtl/instance.hxx>
#include <comphelper/string.hxx>
#include <rtl/character.hxx>

#include <stdio.h>
#include <map>

inline bool ascii_isDigit( sal_Unicode ch )
{
    return ((ch >= 0x0030) && (ch <= 0x0039));
}

inline bool ascii_isLetter( sal_Unicode ch )
{
    return (( (ch >= 0x0041) && (ch <= 0x005A)) || ((ch >= 0x0061) && (ch <= 0x007A)));
}

void INetMIMEMessage::SetHeaderField_Impl (
    const OString &rName,
    const OUString &rValue,
@@ -72,7 +62,7 @@ static const sal_Char *months[12] =
static sal_uInt16 ParseNumber(const OString& rStr, sal_uInt16& nIndex)
{
    sal_uInt16 n = nIndex;
    while ((n < rStr.getLength()) && ascii_isDigit(rStr[n])) n++;
    while ((n < rStr.getLength()) && rtl::isAsciiDigit(rStr[n])) n++;

    OString aNum(rStr.copy(nIndex, (n - nIndex)));
    nIndex = n;
@@ -83,7 +73,7 @@ static sal_uInt16 ParseNumber(const OString& rStr, sal_uInt16& nIndex)
static sal_uInt16 ParseMonth(const OString& rStr, sal_uInt16& nIndex)
{
    sal_uInt16 n = nIndex;
    while ((n < rStr.getLength()) && ascii_isLetter(rStr[n])) n++;
    while ((n < rStr.getLength()) && rtl::isAsciiAlpha(rStr[n])) n++;

    OString aMonth(rStr.copy(nIndex, 3));
    nIndex = n;
@@ -114,7 +104,7 @@ bool INetMIMEMessage::ParseDateField (

        while (
            (nIndex < aDateField.getLength()) &&
            (ascii_isLetter (aDateField[nIndex]) ||
            (rtl::isAsciiAlpha (aDateField[nIndex]) ||
             (aDateField[nIndex] == ',')     ))
            nIndex++;

@@ -122,7 +112,7 @@ bool INetMIMEMessage::ParseDateField (
               (aDateField[nIndex] == ' '))
            nIndex++;

        if (ascii_isLetter (aDateField[nIndex]))
        if (rtl::isAsciiAlpha (aDateField[nIndex]))
        {
            // Format: ctime().
            if ((aDateField.getLength() - nIndex) < 20) return false;