You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
476 lines
15 KiB
476 lines
15 KiB
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
file Copyright.txt or https://cmake.org/licensing for details. */
|
|
#include "cmRST.h"
|
|
|
|
#include <algorithm>
|
|
#include <cctype>
|
|
#include <cstddef>
|
|
#include <iterator>
|
|
#include <utility>
|
|
|
|
#include "cmsys/FStream.hxx"
|
|
|
|
#include "cmAlgorithms.h"
|
|
#include "cmRange.h"
|
|
#include "cmStringAlgorithms.h"
|
|
#include "cmSystemTools.h"
|
|
#include "cmVersion.h"
|
|
|
|
cmRST::cmRST(std::ostream& os, std::string docroot)
|
|
: OS(os)
|
|
, DocRoot(std::move(docroot))
|
|
, IncludeDepth(0)
|
|
, OutputLinePending(false)
|
|
, LastLineEndedInColonColon(false)
|
|
, Markup(MarkupNone)
|
|
, Directive(DirectiveNone)
|
|
, CMakeDirective("^.. (cmake:)?("
|
|
"command|envvar|genex|variable"
|
|
")::[ \t]+([^ \t\n]+)$")
|
|
, CMakeModuleDirective("^.. cmake-module::[ \t]+([^ \t\n]+)$")
|
|
, ParsedLiteralDirective("^.. parsed-literal::[ \t]*(.*)$")
|
|
, CodeBlockDirective("^.. code-block::[ \t]*(.*)$")
|
|
, ReplaceDirective("^.. (\\|[^|]+\\|) replace::[ \t]*(.*)$")
|
|
, IncludeDirective("^.. include::[ \t]+([^ \t\n]+)$")
|
|
, TocTreeDirective("^.. toctree::[ \t]*(.*)$")
|
|
, ProductionListDirective("^.. productionlist::[ \t]*(.*)$")
|
|
, NoteDirective("^.. note::[ \t]*(.*)$")
|
|
, ModuleRST(R"(^#\[(=*)\[\.rst:$)")
|
|
, CMakeRole("(:cmake)?:("
|
|
"command|cpack_gen|generator|genex|"
|
|
"variable|envvar|module|policy|"
|
|
"prop_cache|prop_dir|prop_gbl|prop_inst|prop_sf|"
|
|
"prop_test|prop_tgt|"
|
|
"manual"
|
|
"):`(<*([^`<]|[^` \t]<)*)([ \t]+<[^`]*>)?`")
|
|
, InlineLink("`(<*([^`<]|[^` \t]<)*)([ \t]+<[^`]*>)?`_")
|
|
, InlineLiteral("``([^`]*)``")
|
|
, Substitution("(^|[^A-Za-z0-9_])"
|
|
"((\\|[^| \t\r\n]([^|\r\n]*[^| \t\r\n])?\\|)(__|_|))"
|
|
"([^A-Za-z0-9_]|$)")
|
|
, TocTreeLink("^.*[ \t]+<([^>]+)>$")
|
|
{
|
|
this->Replace["|release|"] = cmVersion::GetCMakeVersion();
|
|
}
|
|
|
|
bool cmRST::ProcessFile(std::string const& fname, bool isModule)
|
|
{
|
|
cmsys::ifstream fin(fname.c_str());
|
|
if (fin) {
|
|
this->DocDir = cmSystemTools::GetFilenamePath(fname);
|
|
if (isModule) {
|
|
this->ProcessModule(fin);
|
|
} else {
|
|
this->ProcessRST(fin);
|
|
}
|
|
this->OutputLinePending = true;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void cmRST::ProcessRST(std::istream& is)
|
|
{
|
|
std::string line;
|
|
while (cmSystemTools::GetLineFromStream(is, line)) {
|
|
this->ProcessLine(line);
|
|
}
|
|
this->Reset();
|
|
}
|
|
|
|
void cmRST::ProcessModule(std::istream& is)
|
|
{
|
|
std::string line;
|
|
std::string rst;
|
|
while (cmSystemTools::GetLineFromStream(is, line)) {
|
|
if (!rst.empty() && rst != "#") {
|
|
// Bracket mode: check for end bracket
|
|
std::string::size_type pos = line.find(rst);
|
|
if (pos == std::string::npos) {
|
|
this->ProcessLine(line);
|
|
} else {
|
|
if (line[0] != '#') {
|
|
line.resize(pos);
|
|
this->ProcessLine(line);
|
|
}
|
|
rst.clear();
|
|
this->Reset();
|
|
this->OutputLinePending = true;
|
|
}
|
|
} else {
|
|
// Line mode: check for .rst start (bracket or line)
|
|
if (rst == "#") {
|
|
if (line == "#") {
|
|
this->ProcessLine("");
|
|
continue;
|
|
}
|
|
if (cmHasLiteralPrefix(line, "# ")) {
|
|
line.erase(0, 2);
|
|
this->ProcessLine(line);
|
|
continue;
|
|
}
|
|
rst.clear();
|
|
this->Reset();
|
|
this->OutputLinePending = true;
|
|
}
|
|
if (line == "#.rst:") {
|
|
rst = "#";
|
|
} else if (this->ModuleRST.find(line)) {
|
|
rst = "]" + this->ModuleRST.match(1) + "]";
|
|
}
|
|
}
|
|
}
|
|
if (rst == "#") {
|
|
this->Reset();
|
|
}
|
|
}
|
|
|
|
void cmRST::Reset()
|
|
{
|
|
if (!this->MarkupLines.empty()) {
|
|
cmRST::UnindentLines(this->MarkupLines);
|
|
}
|
|
switch (this->Directive) {
|
|
case DirectiveNone:
|
|
break;
|
|
case DirectiveParsedLiteral:
|
|
this->ProcessDirectiveParsedLiteral();
|
|
break;
|
|
case DirectiveLiteralBlock:
|
|
this->ProcessDirectiveLiteralBlock();
|
|
break;
|
|
case DirectiveCodeBlock:
|
|
this->ProcessDirectiveCodeBlock();
|
|
break;
|
|
case DirectiveReplace:
|
|
this->ProcessDirectiveReplace();
|
|
break;
|
|
case DirectiveTocTree:
|
|
this->ProcessDirectiveTocTree();
|
|
break;
|
|
}
|
|
this->Markup = MarkupNone;
|
|
this->Directive = DirectiveNone;
|
|
this->MarkupLines.clear();
|
|
}
|
|
|
|
void cmRST::ProcessLine(std::string const& line)
|
|
{
|
|
bool lastLineEndedInColonColon = this->LastLineEndedInColonColon;
|
|
this->LastLineEndedInColonColon = false;
|
|
|
|
// A line starting in .. is an explicit markup start.
|
|
if (line == ".." ||
|
|
(line.size() >= 3 && line[0] == '.' && line[1] == '.' &&
|
|
isspace(line[2]))) {
|
|
this->Reset();
|
|
this->Markup =
|
|
(line.find_first_not_of(" \t", 2) == std::string::npos ? MarkupEmpty
|
|
: MarkupNormal);
|
|
// XXX(clang-tidy): https://bugs.llvm.org/show_bug.cgi?id=44165
|
|
// NOLINTNEXTLINE(bugprone-branch-clone)
|
|
if (this->CMakeDirective.find(line)) {
|
|
// Output cmake domain directives and their content normally.
|
|
this->NormalLine(line);
|
|
} else if (this->CMakeModuleDirective.find(line)) {
|
|
// Process cmake-module directive: scan .cmake file comments.
|
|
std::string file = this->CMakeModuleDirective.match(1);
|
|
if (file.empty() || !this->ProcessInclude(file, IncludeModule)) {
|
|
this->NormalLine(line);
|
|
}
|
|
} else if (this->ParsedLiteralDirective.find(line)) {
|
|
// Record the literal lines to output after whole block.
|
|
this->Directive = DirectiveParsedLiteral;
|
|
this->MarkupLines.push_back(this->ParsedLiteralDirective.match(1));
|
|
} else if (this->CodeBlockDirective.find(line)) {
|
|
// Record the literal lines to output after whole block.
|
|
// Ignore the language spec and record the opening line as blank.
|
|
this->Directive = DirectiveCodeBlock;
|
|
this->MarkupLines.emplace_back();
|
|
} else if (this->ReplaceDirective.find(line)) {
|
|
// Record the replace directive content.
|
|
this->Directive = DirectiveReplace;
|
|
this->ReplaceName = this->ReplaceDirective.match(1);
|
|
this->MarkupLines.push_back(this->ReplaceDirective.match(2));
|
|
} else if (this->IncludeDirective.find(line)) {
|
|
// Process the include directive or output the directive and its
|
|
// content normally if it fails.
|
|
std::string file = this->IncludeDirective.match(1);
|
|
if (file.empty() || !this->ProcessInclude(file, IncludeNormal)) {
|
|
this->NormalLine(line);
|
|
}
|
|
} else if (this->TocTreeDirective.find(line)) {
|
|
// Record the toctree entries to process after whole block.
|
|
this->Directive = DirectiveTocTree;
|
|
this->MarkupLines.push_back(this->TocTreeDirective.match(1));
|
|
} else if (this->ProductionListDirective.find(line)) {
|
|
// Output productionlist directives and their content normally.
|
|
this->NormalLine(line);
|
|
} else if (this->NoteDirective.find(line)) {
|
|
// Output note directives and their content normally.
|
|
this->NormalLine(line);
|
|
}
|
|
}
|
|
// An explicit markup start followed nothing but whitespace and a
|
|
// blank line does not consume any indented text following.
|
|
else if (this->Markup == MarkupEmpty && line.empty()) {
|
|
this->NormalLine(line);
|
|
}
|
|
// Indented lines following an explicit markup start are explicit markup.
|
|
else if (this->Markup && (line.empty() || isspace(line[0]))) {
|
|
this->Markup = MarkupNormal;
|
|
// Record markup lines if the start line was recorded.
|
|
if (!this->MarkupLines.empty()) {
|
|
this->MarkupLines.push_back(line);
|
|
}
|
|
}
|
|
// A blank line following a paragraph ending in "::" starts a literal block.
|
|
else if (lastLineEndedInColonColon && line.empty()) {
|
|
// Record the literal lines to output after whole block.
|
|
this->Markup = MarkupNormal;
|
|
this->Directive = DirectiveLiteralBlock;
|
|
this->MarkupLines.emplace_back();
|
|
this->OutputLine("", false);
|
|
}
|
|
// Print non-markup lines.
|
|
else {
|
|
this->NormalLine(line);
|
|
this->LastLineEndedInColonColon =
|
|
(line.size() >= 2 && line[line.size() - 2] == ':' && line.back() == ':');
|
|
}
|
|
}
|
|
|
|
void cmRST::NormalLine(std::string const& line)
|
|
{
|
|
this->Reset();
|
|
this->OutputLine(line, true);
|
|
}
|
|
|
|
void cmRST::OutputLine(std::string const& line_in, bool inlineMarkup)
|
|
{
|
|
if (this->OutputLinePending) {
|
|
this->OS << "\n";
|
|
this->OutputLinePending = false;
|
|
}
|
|
if (inlineMarkup) {
|
|
std::string line = this->ReplaceSubstitutions(line_in);
|
|
std::string::size_type pos = 0;
|
|
for (;;) {
|
|
std::string::size_type* first = nullptr;
|
|
std::string::size_type role_start = std::string::npos;
|
|
std::string::size_type link_start = std::string::npos;
|
|
std::string::size_type lit_start = std::string::npos;
|
|
if (this->CMakeRole.find(line.c_str() + pos)) {
|
|
role_start = this->CMakeRole.start();
|
|
first = &role_start;
|
|
}
|
|
if (this->InlineLiteral.find(line.c_str() + pos)) {
|
|
lit_start = this->InlineLiteral.start();
|
|
if (!first || lit_start < *first) {
|
|
first = &lit_start;
|
|
}
|
|
}
|
|
if (this->InlineLink.find(line.c_str() + pos)) {
|
|
link_start = this->InlineLink.start();
|
|
if (!first || link_start < *first) {
|
|
first = &link_start;
|
|
}
|
|
}
|
|
if (first == &role_start) {
|
|
this->OS << line.substr(pos, role_start);
|
|
std::string text = this->CMakeRole.match(3);
|
|
// If a command reference has no explicit target and
|
|
// no explicit "(...)" then add "()" to the text.
|
|
if (this->CMakeRole.match(2) == "command" &&
|
|
this->CMakeRole.match(5).empty() &&
|
|
text.find_first_of("()") == std::string::npos) {
|
|
text += "()";
|
|
}
|
|
this->OS << "``" << text << "``";
|
|
pos += this->CMakeRole.end();
|
|
} else if (first == &lit_start) {
|
|
this->OS << line.substr(pos, lit_start);
|
|
std::string text = this->InlineLiteral.match(1);
|
|
pos += this->InlineLiteral.end();
|
|
this->OS << "``" << text << "``";
|
|
} else if (first == &link_start) {
|
|
this->OS << line.substr(pos, link_start);
|
|
std::string text = this->InlineLink.match(1);
|
|
bool escaped = false;
|
|
for (char c : text) {
|
|
if (escaped) {
|
|
escaped = false;
|
|
this->OS << c;
|
|
} else if (c == '\\') {
|
|
escaped = true;
|
|
} else {
|
|
this->OS << c;
|
|
}
|
|
}
|
|
pos += this->InlineLink.end();
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
this->OS << line.substr(pos) << "\n";
|
|
} else {
|
|
this->OS << line_in << "\n";
|
|
}
|
|
}
|
|
|
|
std::string cmRST::ReplaceSubstitutions(std::string const& line)
|
|
{
|
|
std::string out;
|
|
std::string::size_type pos = 0;
|
|
while (this->Substitution.find(line.c_str() + pos)) {
|
|
std::string::size_type start = this->Substitution.start(2);
|
|
std::string::size_type end = this->Substitution.end(2);
|
|
std::string substitute = this->Substitution.match(3);
|
|
auto replace = this->Replace.find(substitute);
|
|
if (replace != this->Replace.end()) {
|
|
std::pair<std::set<std::string>::iterator, bool> replaced =
|
|
this->Replaced.insert(substitute);
|
|
if (replaced.second) {
|
|
substitute = this->ReplaceSubstitutions(replace->second);
|
|
this->Replaced.erase(replaced.first);
|
|
}
|
|
}
|
|
out += line.substr(pos, start);
|
|
out += substitute;
|
|
pos += end;
|
|
}
|
|
out += line.substr(pos);
|
|
return out;
|
|
}
|
|
|
|
void cmRST::OutputMarkupLines(bool inlineMarkup)
|
|
{
|
|
for (auto line : this->MarkupLines) {
|
|
if (!line.empty()) {
|
|
line = cmStrCat(" ", line);
|
|
}
|
|
this->OutputLine(line, inlineMarkup);
|
|
}
|
|
this->OutputLinePending = true;
|
|
}
|
|
|
|
bool cmRST::ProcessInclude(std::string file, IncludeType type)
|
|
{
|
|
bool found = false;
|
|
if (this->IncludeDepth < 10) {
|
|
cmRST r(this->OS, this->DocRoot);
|
|
r.IncludeDepth = this->IncludeDepth + 1;
|
|
r.OutputLinePending = this->OutputLinePending;
|
|
if (type != IncludeTocTree) {
|
|
r.Replace = this->Replace;
|
|
}
|
|
if (file[0] == '/') {
|
|
file = this->DocRoot + file;
|
|
} else {
|
|
file = this->DocDir + "/" + file;
|
|
}
|
|
found = r.ProcessFile(file, type == IncludeModule);
|
|
if (type != IncludeTocTree) {
|
|
this->Replace = r.Replace;
|
|
}
|
|
this->OutputLinePending = r.OutputLinePending;
|
|
}
|
|
return found;
|
|
}
|
|
|
|
void cmRST::ProcessDirectiveParsedLiteral()
|
|
{
|
|
this->OutputMarkupLines(true);
|
|
}
|
|
|
|
void cmRST::ProcessDirectiveLiteralBlock()
|
|
{
|
|
this->OutputMarkupLines(false);
|
|
}
|
|
|
|
void cmRST::ProcessDirectiveCodeBlock()
|
|
{
|
|
this->OutputMarkupLines(false);
|
|
}
|
|
|
|
void cmRST::ProcessDirectiveReplace()
|
|
{
|
|
// Record markup lines as replacement text.
|
|
std::string& replacement = this->Replace[this->ReplaceName];
|
|
replacement += cmJoin(this->MarkupLines, " ");
|
|
this->ReplaceName.clear();
|
|
}
|
|
|
|
void cmRST::ProcessDirectiveTocTree()
|
|
{
|
|
// Process documents referenced by toctree directive.
|
|
for (std::string const& line : this->MarkupLines) {
|
|
if (!line.empty() && line[0] != ':') {
|
|
if (this->TocTreeLink.find(line)) {
|
|
std::string const& link = this->TocTreeLink.match(1);
|
|
this->ProcessInclude(link + ".rst", IncludeTocTree);
|
|
} else {
|
|
this->ProcessInclude(line + ".rst", IncludeTocTree);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void cmRST::UnindentLines(std::vector<std::string>& lines)
|
|
{
|
|
// Remove the common indentation from the second and later lines.
|
|
std::string indentText;
|
|
std::string::size_type indentEnd = 0;
|
|
bool first = true;
|
|
for (size_t i = 1; i < lines.size(); ++i) {
|
|
std::string const& line = lines[i];
|
|
|
|
// Do not consider empty lines.
|
|
if (line.empty()) {
|
|
continue;
|
|
}
|
|
|
|
// Record indentation on first non-empty line.
|
|
if (first) {
|
|
first = false;
|
|
indentEnd = line.find_first_not_of(" \t");
|
|
indentText = line.substr(0, indentEnd);
|
|
continue;
|
|
}
|
|
|
|
// Truncate indentation to match that on this line.
|
|
indentEnd = std::min(indentEnd, line.size());
|
|
for (std::string::size_type j = 0; j != indentEnd; ++j) {
|
|
if (line[j] != indentText[j]) {
|
|
indentEnd = j;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Update second and later lines.
|
|
for (size_t i = 1; i < lines.size(); ++i) {
|
|
std::string& line = lines[i];
|
|
if (!line.empty()) {
|
|
line = line.substr(indentEnd);
|
|
}
|
|
}
|
|
|
|
auto it = lines.cbegin();
|
|
size_t leadingEmpty = std::distance(it, cmFindNot(lines, std::string()));
|
|
|
|
auto rit = lines.crbegin();
|
|
size_t trailingEmpty =
|
|
std::distance(rit, cmFindNot(cmReverseRange(lines), std::string()));
|
|
|
|
if ((leadingEmpty + trailingEmpty) >= lines.size()) {
|
|
// All lines are empty. The markup block is empty. Leave only one.
|
|
lines.resize(1);
|
|
return;
|
|
}
|
|
|
|
auto contentEnd = cmRotate(lines.begin(), lines.begin() + leadingEmpty,
|
|
lines.end() - trailingEmpty);
|
|
lines.erase(contentEnd, lines.end());
|
|
}
|