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cleanup text wrapping code in argList

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This commit is contained in:
Mark Olesen
2009-12-04 10:09:32 +01:00
parent 6e3ed58ae5
commit ebf94bfc74
1 changed files with 32 additions and 26 deletions
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58
src/OpenFOAM/global/argList/argList.C
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@ -34,6 +34,7 @@ License
#include "JobInfo.H"
#include "labelList.H"
#include <cctype>
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
@ -157,48 +158,53 @@ void Foam::argList::printOptionUsage
}
}
// text wrap - this could probably be made more efficient
// text wrap
string::size_type pos = 0;
while (pos != string::npos && strLen - pos > textWidth)
while (pos != string::npos && pos + textWidth < strLen)
{
string::size_type prev = pos;
string::size_type wordEnd = str.find_first_of(" \t\n", pos);
// potential end point and next point
string::size_type curr = pos + textWidth - 1;
string::size_type next = string::npos;
while (wordEnd != string::npos && (wordEnd - pos) < textWidth)
if (isspace(str[curr]) || isspace(str[curr+1]))
{
prev = wordEnd;
next = str.find_first_not_of(" \t\n", wordEnd);
// we were lucky: ended on a space or the next one is a space
next = str.find_first_not_of(" \t\n", curr + 1);
}
else
{
// search for end of the previous word break
string::size_type prev = str.find_last_of(" \t\n", curr);
if (next == string::npos)
// reposition to the end of the previous word if possible
if (prev != string::npos && prev > pos)
{
wordEnd = string::npos;
}
else
{
wordEnd = str.find_first_of(" \t\n", next);
curr = prev;
}
}
if (pos != string::npos)
if (next == string::npos)
{
// indent next line
if (pos)
{
for (string::size_type i = 0; i < usageMin; ++i)
{
Info<<' ';
}
}
Info<< str.substr(pos, (prev - pos)).c_str() << nl;
pos = next;
next = curr + 1;
}
// indent following lines (not the first one)
if (pos)
{
for (string::size_type i = 0; i < usageMin; ++i)
{
Info<<' ';
}
}
Info<< str.substr(pos, (curr - pos)).c_str() << nl;
pos = next;
}
// output the remainder of the string
if (pos != string::npos)
{
// indent next line
// indent following lines (not the first one)
if (pos)
{
for (string::size_type i = 0; i < usageMin; ++i)