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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#include "cmDocumentationFormatter.h"
#include "cmDocumentationSection.h"
cmDocumentationFormatter::cmDocumentationFormatter():
TextWidth(77), TextIndent("")
{
}
cmDocumentationFormatter::~cmDocumentationFormatter()
{
}
void cmDocumentationFormatter::PrintFormatted(std::ostream& os,
const char* text)
{
if(!text)
{
return;
}
const char* ptr = text;
while(*ptr)
{
// Any ptrs starting in a space are treated as preformatted text.
std::string preformatted;
while(*ptr == ' ')
{
for(char ch = *ptr; ch && ch != '\n'; ++ptr, ch = *ptr)
{
preformatted.append(1, ch);
}
if(*ptr)
{
++ptr;
preformatted.append(1, '\n');
}
}
if(preformatted.length())
{
this->PrintPreformatted(os, preformatted.c_str());
}
// Other ptrs are treated as paragraphs.
std::string paragraph;
for(char ch = *ptr; ch && ch != '\n'; ++ptr, ch = *ptr)
{
paragraph.append(1, ch);
}
if(*ptr)
{
++ptr;
paragraph.append(1, '\n');
}
if(paragraph.length())
{
this->PrintParagraph(os, paragraph.c_str());
}
}
}
void cmDocumentationFormatter::PrintPreformatted(std::ostream& os,
const char* text)
{
bool newline = true;
for(const char* ptr = text; *ptr; ++ptr)
{
if(newline && *ptr != '\n')
{
os << this->TextIndent;
newline = false;
}
os << *ptr;
if(*ptr == '\n')
{
newline = true;
}
}
os << "\n";
}
void cmDocumentationFormatter::PrintParagraph(std::ostream& os,
const char* text)
{
os << this->TextIndent;
this->PrintColumn(os, text);
os << "\n";
}
void cmDocumentationFormatter::SetIndent(const char* indent)
{
this->TextIndent = indent;
}
void cmDocumentationFormatter::PrintColumn(std::ostream& os,
const char* text)
{
// Print text arranged in an indented column of fixed witdh.
const char* l = text;
long column = 0;
bool newSentence = false;
bool firstLine = true;
int width = this->TextWidth - static_cast<int>(strlen(this->TextIndent));
// Loop until the end of the text.
while(*l)
{
// Parse the next word.
const char* r = l;
while(*r && (*r != '\n') && (*r != ' ')) { ++r; }
// Does it fit on this line?
if(r-l < (width-column-(newSentence?1:0)))
{
// Word fits on this line.
if(r > l)
{
if(column)
{
// Not first word on line. Separate from the previous word
// by a space, or two if this is a new sentence.
if(newSentence)
{
os << " ";
column += 2;
}
else
{
os << " ";
column += 1;
}
}
else
{
// First word on line. Print indentation unless this is the
// first line.
os << (firstLine?"":this->TextIndent);
}
// Print the word.
os.write(l, static_cast<long>(r-l));
newSentence = (*(r-1) == '.');
}
if(*r == '\n')
{
// Text provided a newline. Start a new line.
os << "\n";
++r;
column = 0;
firstLine = false;
}
else
{
// No provided newline. Continue this line.
column += static_cast<long>(r-l);
}
}
else
{
// Word does not fit on this line. Start a new line.
os << "\n";
firstLine = false;
if(r > l)
{
os << this->TextIndent;
os.write(l, static_cast<long>(r-l));
column = static_cast<long>(r-l);
newSentence = (*(r-1) == '.');
}
else
{
column = 0;
}
}
// Move to beginning of next word. Skip over whitespace.
l = r;
while(*l && (*l == ' ')) { ++l; }
}
}
void cmDocumentationFormatter
::PrintSection(std::ostream& os,
cmDocumentationSection const& section)
{
os << section.GetName() << "\n";
const std::vector<cmDocumentationEntry> &entries =
section.GetEntries();
for(std::vector<cmDocumentationEntry>::const_iterator op = entries.begin();
op != entries.end(); ++op)
{
if(op->Name.size())
{
os << " " << op->Name;
this->TextIndent = " ";
int align = static_cast<int>(strlen(this->TextIndent))-4;
for(int i = static_cast<int>(op->Name.size()); i < align; ++i)
{
os << " ";
}
if (op->Name.size() > strlen(this->TextIndent)-4 )
{
os << "\n";
os.write(this->TextIndent, strlen(this->TextIndent)-2);
}
os << "= ";
this->PrintColumn(os, op->Brief.c_str());
os << "\n";
}
else
{
os << "\n";
this->TextIndent = "";
this->PrintFormatted(os, op->Brief.c_str());
}
}
os << "\n";
}
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