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move lyxlex_pimpl.* into lyxlex.C

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17941 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
André Pönitz 2007-04-24 10:52:22 +00:00
parent 1567e4ad84
commit 4b7da6b24e
5 changed files with 601 additions and 643 deletions
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2
src/Makefile.am
View File

@ -203,8 +203,6 @@ lyx_SOURCES = \
lyxlength.h \
lyxlex.C \
lyxlex.h \
lyxlex_pimpl.C \
lyxlex_pimpl.h \
lyxrc.C \
lyxrc.h \
lyxrow.C \

602
src/lyxlex.C
View File

@ -16,30 +16,627 @@
#include "lyxlex.h"
#include "debug.h"
#include "lyxlex_pimpl.h"
#include "support/convert.h"
#include "support/filetools.h"
#include "support/lstrings.h"
#include "support/lyxalgo.h"
#include "support/types.h"
#include "support/unicode.h"
#include <boost/iostreams/filtering_streambuf.hpp>
#include <boost/iostreams/filter/gzip.hpp>
#include <boost/iostreams/device/file.hpp>
#include <boost/utility.hpp>
namespace io = boost::iostreams;
#include <functional>
#include <istream>
#include <stack>
#include <sstream>
#include <vector>
namespace lyx {
using support::compare_ascii_no_case;
using support::FileName;
using support::getFormatFromContents;
using support::isStrDbl;
using support::isStrInt;
using support::ltrim;
using support::makeDisplayPath;
using support::prefixIs;
using support::split;
using support::subst;
using support::trim;
using std::endl;
using std::getline;
using std::lower_bound;
using std::sort;
using std::string;
using std::ios;
using std::istream;
using std::ostream;
//////////////////////////////////////////////////////////////////////
//
// LyXLex::Pimpl
//
//////////////////////////////////////////////////////////////////////
///
class LyXLex::Pimpl : boost::noncopyable {
public:
///
Pimpl(keyword_item * tab, int num);
///
std::string const getString() const;
///
docstring const getDocString() const;
///
void printError(std::string const & message) const;
///
void printTable(std::ostream & os);
///
void pushTable(keyword_item * tab, int num);
///
void popTable();
///
bool setFile(support::FileName const & filename);
///
void setStream(std::istream & i);
///
void setCommentChar(char c);
///
bool next(bool esc = false);
///
int search_kw(char const * const tag) const;
///
int lex();
///
bool eatLine();
///
bool nextToken();
/// test if there is a pushed token or the stream is ok
bool inputAvailable();
///
void pushToken(std::string const &);
/// fb_ is only used to open files, the stream is accessed through is.
std::filebuf fb_;
/// gz_ is only used to open files, the stream is accessed through is.
io::filtering_istreambuf gz_;
/// the stream that we use.
std::istream is;
///
std::string name;
///
keyword_item * table;
///
int no_items;
///
std::string buff;
///
int status;
///
int lineno;
///
std::string pushTok;
///
char commentChar;
private:
///
void verifyTable();
///
class pushed_table {
public:
///
pushed_table()
: table_elem(0), table_siz(0) {}
///
pushed_table(keyword_item * ki, int siz)
: table_elem(ki), table_siz(siz) {}
///
keyword_item * table_elem;
///
int table_siz;
};
///
std::stack<pushed_table> pushed;
};
namespace {
class compare_tags
: public std::binary_function<keyword_item, keyword_item, bool> {
public:
// used by lower_bound, sort and sorted
bool operator()(keyword_item const & a, keyword_item const & b) const
{
// we use the ascii version, because in turkish, 'i'
// is not the lowercase version of 'I', and thus
// turkish locale breaks parsing of tags.
return compare_ascii_no_case(a.tag, b.tag) < 0;
}
};
} // end of anon namespace
LyXLex::Pimpl::Pimpl(keyword_item * tab, int num)
: is(&fb_), table(tab), no_items(num),
status(0), lineno(0), commentChar('#')
{
verifyTable();
}
string const LyXLex::Pimpl::getString() const
{
return buff;
}
docstring const LyXLex::Pimpl::getDocString() const
{
return from_utf8(buff);
}
void LyXLex::Pimpl::printError(string const & message) const
{
string const tmpmsg = subst(message, "$$Token", getString());
lyxerr << "LyX: " << tmpmsg << " [around line " << lineno
<< " of file " << to_utf8(makeDisplayPath(name)) << ']' << endl;
}
void LyXLex::Pimpl::printTable(ostream & os)
{
os << "\nNumber of tags: " << no_items << endl;
for (int i= 0; i < no_items; ++i)
os << "table[" << i
<< "]: tag: `" << table[i].tag
<< "' code:" << table[i].code << '\n';
os.flush();
}
void LyXLex::Pimpl::verifyTable()
{
// Check if the table is sorted and if not, sort it.
if (table
&& !lyx::sorted(table, table + no_items, compare_tags())) {
lyxerr << "The table passed to LyXLex is not sorted!\n"
<< "Tell the developers to fix it!" << endl;
// We sort it anyway to avoid problems.
lyxerr << "\nUnsorted:" << endl;
printTable(lyxerr);
sort(table, table + no_items, compare_tags());
lyxerr << "\nSorted:" << endl;
printTable(lyxerr);
}
}
void LyXLex::Pimpl::pushTable(keyword_item * tab, int num)
{
pushed_table tmppu(table, no_items);
pushed.push(tmppu);
table = tab;
no_items = num;
verifyTable();
}
void LyXLex::Pimpl::popTable()
{
if (pushed.empty()) {
lyxerr << "LyXLex error: nothing to pop!" << endl;
return;
}
pushed_table tmp = pushed.top();
pushed.pop();
table = tmp.table_elem;
no_items = tmp.table_siz;
}
bool LyXLex::Pimpl::setFile(FileName const & filename)
{
// Check the format of the file.
string const format = getFormatFromContents(filename);
if (format == "gzip" || format == "zip" || format == "compress") {
LYXERR(Debug::LYXLEX) << "lyxlex: compressed" << endl;
// The check only outputs a debug message, because it triggers
// a bug in compaq cxx 6.2, where is_open() returns 'true' for
// a fresh new filebuf. (JMarc)
if (!gz_.empty() || istream::off_type(is.tellg()) > -1)
LYXERR(Debug::LYXLEX) << "Error in LyXLex::setFile: "
"file or stream already set." << endl;
gz_.push(io::gzip_decompressor());
gz_.push(io::file_source(filename.toFilesystemEncoding()));
is.rdbuf(&gz_);
name = filename.absFilename();
lineno = 0;
return gz_.component<io::file_source>(1)->is_open() && is.good();
} else {
LYXERR(Debug::LYXLEX) << "lyxlex: UNcompressed" << endl;
// The check only outputs a debug message, because it triggers
// a bug in compaq cxx 6.2, where is_open() returns 'true' for
// a fresh new filebuf. (JMarc)
if (fb_.is_open() || istream::off_type(is.tellg()) > 0)
LYXERR(Debug::LYXLEX) << "Error in LyXLex::setFile: "
"file or stream already set." << endl;
fb_.open(filename.toFilesystemEncoding().c_str(), ios::in);
is.rdbuf(&fb_);
name = filename.absFilename();
lineno = 0;
return fb_.is_open() && is.good();
}
}
void LyXLex::Pimpl::setStream(istream & i)
{
if (fb_.is_open() || istream::off_type(is.tellg()) > 0)
LYXERR(Debug::LYXLEX) << "Error in LyXLex::setStream: "
"file or stream already set." << endl;
is.rdbuf(i.rdbuf());
lineno = 0;
}
void LyXLex::Pimpl::setCommentChar(char c)
{
commentChar = c;
}
bool LyXLex::Pimpl::next(bool esc /* = false */)
{
if (!pushTok.empty()) {
// There can have been a whole line pushed so
// we extract the first word and leaves the rest
// in pushTok. (Lgb)
if (pushTok[0] == '\\' && pushTok.find(' ') != string::npos) {
buff.clear();
pushTok = split(pushTok, buff, ' ');
} else {
buff = pushTok;
pushTok.clear();
}
status = LEX_TOKEN;
return true;
}
if (!esc) {
unsigned char c = 0; // getc() returns an int
char cc = 0;
status = 0;
while (is && !status) {
is.get(cc);
c = cc;
if (c == commentChar) {
// Read rest of line (fast :-)
#if 1
// That is not fast... (Lgb)
string dummy;
getline(is, dummy);
LYXERR(Debug::LYXLEX) << "Comment read: `" << c
<< dummy << '\'' << endl;
#else
// unfortunately ignore is buggy (Lgb)
is.ignore(100, '\n');
#endif
++lineno;
continue;
}
if (c == '\"') {
buff.clear();
do {
is.get(cc);
c = cc;
if (c != '\r')
buff.push_back(c);
} while (c != '\"' && c != '\n' && is);
if (c != '\"') {
printError("Missing quote");
if (c == '\n')
++lineno;
}
buff.resize(buff.size()-1);
status = LEX_DATA;
break;
}
if (c == ',')
continue; /* Skip ','s */
// using relational operators with chars other
// than == and != is not safe. And if it is done
// the type _have_ to be unsigned. It usually a
// lot better to use the functions from cctype
if (c > ' ' && is) {
buff.clear();
do {
buff.push_back(c);
is.get(cc);
c = cc;
} while (c > ' ' && c != ',' && is);
status = LEX_TOKEN;
}
if (c == '\r' && is) {
// The Windows support has lead to the
// possibility of "\r\n" at the end of
// a line. This will stop LyX choking
// when it expected to find a '\n'
is.get(cc);
c = cc;
}
if (c == '\n')
++lineno;
}
if (status)
return true;
status = is.eof() ? LEX_FEOF: LEX_UNDEF;
buff.clear();
return false;
} else {
unsigned char c = 0; // getc() returns an int
char cc = 0;
status = 0;
while (is && !status) {
is.get(cc);
c = cc;
// skip ','s
if (c == ',')
continue;
if (c == commentChar) {
// Read rest of line (fast :-)
#if 1
// That is still not fast... (Lgb)
string dummy;
getline(is, dummy);
LYXERR(Debug::LYXLEX) << "Comment read: `" << c
<< dummy << '\'' << endl;
#else
// but ignore is also still buggy (Lgb)
// This is fast (Lgb)
is.ignore(100, '\n');
#endif
++lineno;
continue;
}
// string
if (c == '\"') {
buff.clear();
bool escaped = false;
do {
escaped = false;
is.get(cc);
c = cc;
if (c == '\r') continue;
if (c == '\\') {
// escape the next char
is.get(cc);
c = cc;
if (c == '\"' || c == '\\')
escaped = true;
else
buff.push_back('\\');
}
buff.push_back(c);
if (!escaped && c == '\"')
break;
} while (c != '\n' && is);
if (c != '\"') {
printError("Missing quote");
if (c == '\n')
++lineno;
}
buff.resize(buff.size() -1);
status = LEX_DATA;
break;
}
if (c > ' ' && is) {
buff.clear();
do {
if (c == '\\') {
// escape the next char
is.get(cc);
c = cc;
//escaped = true;
}
buff.push_back(c);
is.get(cc);
c = cc;
} while (c > ' ' && c != ',' && is);
status = LEX_TOKEN;
}
// new line
if (c == '\n')
++lineno;
}
if (status)
return true;
status = is.eof() ? LEX_FEOF : LEX_UNDEF;
buff.clear();
return false;
}
}
int LyXLex::Pimpl::search_kw(char const * const tag) const
{
keyword_item search_tag = { tag, 0 };
keyword_item * res =
lower_bound(table, table + no_items,
search_tag, compare_tags());
// use the compare_ascii_no_case instead of compare_no_case,
// because in turkish, 'i' is not the lowercase version of 'I',
// and thus turkish locale breaks parsing of tags.
if (res != table + no_items
&& !compare_ascii_no_case(res->tag, tag))
return res->code;
return LEX_UNDEF;
}
int LyXLex::Pimpl::lex()
{
//NOTE: possible bug.
if (next() && status == LEX_TOKEN)
return search_kw(getString().c_str());
return status;
}
bool LyXLex::Pimpl::eatLine()
{
buff.clear();
unsigned char c = '\0';
char cc = 0;
while (is && c != '\n') {
is.get(cc);
c = cc;
//LYXERR(Debug::LYXLEX) << "LyXLex::EatLine read char: `"
// << c << '\'' << endl;
if (c != '\r')
buff.push_back(c);
}
if (c == '\n') {
++lineno;
buff.resize(buff.size() - 1);
status = LEX_DATA;
return true;
} else if (buff.length() > 0) { // last line
status = LEX_DATA;
return true;
} else {
return false;
}
}
bool LyXLex::Pimpl::nextToken()
{
if (!pushTok.empty()) {
// There can have been a whole line pushed so
// we extract the first word and leaves the rest
// in pushTok. (Lgb)
if (pushTok[0] == '\\' && pushTok.find(' ') != string::npos) {
buff.clear();
pushTok = split(pushTok, buff, ' ');
} else {
buff = pushTok;
pushTok.clear();
}
status = LEX_TOKEN;
return true;
}
status = 0;
while (is && !status) {
unsigned char c = 0;
char cc = 0;
is.get(cc);
c = cc;
if (c >= ' ' && is) {
buff.clear();
if (c == '\\') { // first char == '\\'
do {
buff.push_back(c);
is.get(cc);
c = cc;
} while (c > ' ' && c != '\\' && is);
} else {
do {
buff.push_back(c);
is.get(cc);
c = cc;
} while (c >= ' ' && c != '\\' && is);
}
if (c == '\\') is.putback(c); // put it back
status = LEX_TOKEN;
}
if (c == '\n')
++lineno;
}
if (status)
return true;
status = is.eof() ? LEX_FEOF: LEX_UNDEF;
buff.clear();
return false;
}
bool LyXLex::Pimpl::inputAvailable()
{
return is.good();
}
void LyXLex::Pimpl::pushToken(string const & pt)
{
pushTok = pt;
}
//////////////////////////////////////////////////////////////////////
//
// LyXLex
//
//////////////////////////////////////////////////////////////////////
LyXLex::LyXLex(keyword_item * tab, int num)
: pimpl_(new Pimpl(tab, num))
{}
@ -269,13 +866,14 @@ void LyXLex::pushToken(string const & pt)
pimpl_->pushToken(pt);
}
LyXLex::operator void const *() const
{
// This behaviour is NOT the same as the std::streams which would
// use fail() here. However, our implementation of getString() et al.
// can cause the eof() and fail() bits to be set, even though we
// haven't tried to read 'em.
return lastReadOk_? this: 0;
return lastReadOk_? this : 0;
}

518
src/lyxlex_pimpl.C
View File

@ -1,518 +0,0 @@
/**
* \file lyxlex_pimpl.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
* \author Jean-Marc Lasgouttes
* \author Jürgen Vigna
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "lyxlex_pimpl.h"
#include "debug.h"
#include "support/filetools.h"
#include "support/lyxalgo.h"
#include "support/lstrings.h"
#include "support/types.h"
#include "support/unicode.h"
#include <functional>
namespace lyx {
using support::compare_ascii_no_case;
using support::FileName;
using support::getFormatFromContents;
using support::makeDisplayPath;
using support::split;
using support::subst;
using std::endl;
using std::getline;
using std::lower_bound;
using std::sort;
using std::string;
using std::ios;
using std::istream;
using std::ostream;
namespace {
class compare_tags
: public std::binary_function<keyword_item, keyword_item, bool> {
public:
// used by lower_bound, sort and sorted
bool operator()(keyword_item const & a, keyword_item const & b) const
{
// we use the ascii version, because in turkish, 'i'
// is not the lowercase version of 'I', and thus
// turkish locale breaks parsing of tags.
return compare_ascii_no_case(a.tag, b.tag) < 0;
}
};
} // end of anon namespace
LyXLex::Pimpl::Pimpl(keyword_item * tab, int num)
: is(&fb_), table(tab), no_items(num),
status(0), lineno(0), commentChar('#')
{
verifyTable();
}
string const LyXLex::Pimpl::getString() const
{
return buff;
}
docstring const LyXLex::Pimpl::getDocString() const
{
return from_utf8(buff);
}
void LyXLex::Pimpl::printError(string const & message) const
{
string const tmpmsg = subst(message, "$$Token", getString());
lyxerr << "LyX: " << tmpmsg << " [around line " << lineno
<< " of file " << to_utf8(makeDisplayPath(name)) << ']' << endl;
}
void LyXLex::Pimpl::printTable(ostream & os)
{
os << "\nNumber of tags: " << no_items << endl;
for (int i= 0; i < no_items; ++i)
os << "table[" << i
<< "]: tag: `" << table[i].tag
<< "' code:" << table[i].code << '\n';
os.flush();
}
void LyXLex::Pimpl::verifyTable()
{
// Check if the table is sorted and if not, sort it.
if (table
&& !lyx::sorted(table, table + no_items, compare_tags())) {
lyxerr << "The table passed to LyXLex is not sorted!\n"
<< "Tell the developers to fix it!" << endl;
// We sort it anyway to avoid problems.
lyxerr << "\nUnsorted:" << endl;
printTable(lyxerr);
sort(table, table + no_items, compare_tags());
lyxerr << "\nSorted:" << endl;
printTable(lyxerr);
}
}
void LyXLex::Pimpl::pushTable(keyword_item * tab, int num)
{
pushed_table tmppu(table, no_items);
pushed.push(tmppu);
table = tab;
no_items = num;
verifyTable();
}
void LyXLex::Pimpl::popTable()
{
if (pushed.empty()) {
lyxerr << "LyXLex error: nothing to pop!" << endl;
return;
}
pushed_table tmp = pushed.top();
pushed.pop();
table = tmp.table_elem;
no_items = tmp.table_siz;
}
bool LyXLex::Pimpl::setFile(FileName const & filename)
{
// Check the format of the file.
string const format = getFormatFromContents(filename);
if (format == "gzip" || format == "zip" || format == "compress") {
LYXERR(Debug::LYXLEX) << "lyxlex: compressed" << endl;
// The check only outputs a debug message, because it triggers
// a bug in compaq cxx 6.2, where is_open() returns 'true' for
// a fresh new filebuf. (JMarc)
if (!gz_.empty() || istream::off_type(is.tellg()) > -1)
LYXERR(Debug::LYXLEX) << "Error in LyXLex::setFile: "
"file or stream already set." << endl;
gz_.push(io::gzip_decompressor());
gz_.push(io::file_source(filename.toFilesystemEncoding()));
is.rdbuf(&gz_);
name = filename.absFilename();
lineno = 0;
return gz_.component<io::file_source>(1)->is_open() && is.good();
} else {
LYXERR(Debug::LYXLEX) << "lyxlex: UNcompressed" << endl;
// The check only outputs a debug message, because it triggers
// a bug in compaq cxx 6.2, where is_open() returns 'true' for
// a fresh new filebuf. (JMarc)
if (fb_.is_open() || istream::off_type(is.tellg()) > 0)
LYXERR(Debug::LYXLEX) << "Error in LyXLex::setFile: "
"file or stream already set." << endl;
fb_.open(filename.toFilesystemEncoding().c_str(), ios::in);
is.rdbuf(&fb_);
name = filename.absFilename();
lineno = 0;
return fb_.is_open() && is.good();
}
}
void LyXLex::Pimpl::setStream(istream & i)
{
if (fb_.is_open() || istream::off_type(is.tellg()) > 0)
LYXERR(Debug::LYXLEX) << "Error in LyXLex::setStream: "
"file or stream already set." << endl;
is.rdbuf(i.rdbuf());
lineno = 0;
}
void LyXLex::Pimpl::setCommentChar(char c)
{
commentChar = c;
}
bool LyXLex::Pimpl::next(bool esc /* = false */)
{
if (!pushTok.empty()) {
// There can have been a whole line pushed so
// we extract the first word and leaves the rest
// in pushTok. (Lgb)
if (pushTok[0] == '\\' && pushTok.find(' ') != string::npos) {
buff.clear();
pushTok = split(pushTok, buff, ' ');
} else {
buff = pushTok;
pushTok.clear();
}
status = LEX_TOKEN;
return true;
}
if (!esc) {
unsigned char c = 0; // getc() returns an int
char cc = 0;
status = 0;
while (is && !status) {
is.get(cc);
c = cc;
if (c == commentChar) {
// Read rest of line (fast :-)
#if 1
// That is not fast... (Lgb)
string dummy;
getline(is, dummy);
LYXERR(Debug::LYXLEX) << "Comment read: `" << c
<< dummy << '\'' << endl;
#else
// unfortunately ignore is buggy (Lgb)
is.ignore(100, '\n');
#endif
++lineno;
continue;
}
if (c == '\"') {
buff.clear();
do {
is.get(cc);
c = cc;
if (c != '\r')
buff.push_back(c);
} while (c != '\"' && c != '\n' && is);
if (c != '\"') {
printError("Missing quote");
if (c == '\n')
++lineno;
}
buff.resize(buff.size()-1);
status = LEX_DATA;
break;
}
if (c == ',')
continue; /* Skip ','s */
// using relational operators with chars other
// than == and != is not safe. And if it is done
// the type _have_ to be unsigned. It usually a
// lot better to use the functions from cctype
if (c > ' ' && is) {
buff.clear();
do {
buff.push_back(c);
is.get(cc);
c = cc;
} while (c > ' ' && c != ',' && is);
status = LEX_TOKEN;
}
if (c == '\r' && is) {
// The Windows support has lead to the
// possibility of "\r\n" at the end of
// a line. This will stop LyX choking
// when it expected to find a '\n'
is.get(cc);
c = cc;
}
if (c == '\n')
++lineno;
}
if (status) return true;
status = is.eof() ? LEX_FEOF: LEX_UNDEF;
buff.clear();
return false;
} else {
unsigned char c = 0; // getc() returns an int
char cc = 0;
status = 0;
while (is && !status) {
is.get(cc);
c = cc;
// skip ','s
if (c == ',')
continue;
if (c == commentChar) {
// Read rest of line (fast :-)
#if 1
// That is still not fast... (Lgb)
string dummy;
getline(is, dummy);
LYXERR(Debug::LYXLEX) << "Comment read: `" << c
<< dummy << '\'' << endl;
#else
// but ignore is also still buggy (Lgb)
// This is fast (Lgb)
is.ignore(100, '\n');
#endif
++lineno;
continue;
}
// string
if (c == '\"') {
buff.clear();
bool escaped = false;
do {
escaped = false;
is.get(cc);
c = cc;
if (c == '\r') continue;
if (c == '\\') {
// escape the next char
is.get(cc);
c = cc;
if (c == '\"' || c == '\\')
escaped = true;
else
buff.push_back('\\');
}
buff.push_back(c);
if (!escaped && c == '\"') break;
} while (c != '\n' && is);
if (c != '\"') {
printError("Missing quote");
if (c == '\n')
++lineno;
}
buff.resize(buff.size() -1);
status = LEX_DATA;
break;
}
if (c > ' ' && is) {
buff.clear();
do {
if (c == '\\') {
// escape the next char
is.get(cc);
c = cc;
//escaped = true;
}
buff.push_back(c);
is.get(cc);
c = cc;
} while (c > ' ' && c != ',' && is);
status = LEX_TOKEN;
}
// new line
if (c == '\n')
++lineno;
}
if (status) return true;
status = is.eof() ? LEX_FEOF : LEX_UNDEF;
buff.clear();
return false;
}
}
int LyXLex::Pimpl::search_kw(char const * const tag) const
{
keyword_item search_tag = { tag, 0 };
keyword_item * res =
lower_bound(table, table + no_items,
search_tag, compare_tags());
// use the compare_ascii_no_case instead of compare_no_case,
// because in turkish, 'i' is not the lowercase version of 'I',
// and thus turkish locale breaks parsing of tags.
if (res != table + no_items
&& !compare_ascii_no_case(res->tag, tag))
return res->code;
return LEX_UNDEF;
}
int LyXLex::Pimpl::lex()
{
//NOTE: possible bug.
if (next() && status == LEX_TOKEN) {
return search_kw(getString().c_str());
} else
return status;
}
bool LyXLex::Pimpl::eatLine()
{
buff.clear();
unsigned char c = '\0';
char cc = 0;
while (is && c != '\n') {
is.get(cc);
c = cc;
//LYXERR(Debug::LYXLEX) << "LyXLex::EatLine read char: `"
// << c << '\'' << endl;
if (c != '\r')
buff.push_back(c);
}
if (c == '\n') {
++lineno;
buff.resize(buff.size() - 1);
status = LEX_DATA;
return true;
} else if (buff.length() > 0) { // last line
status = LEX_DATA;
return true;
} else {
return false;
}
}
bool LyXLex::Pimpl::nextToken()
{
if (!pushTok.empty()) {
// There can have been a whole line pushed so
// we extract the first word and leaves the rest
// in pushTok. (Lgb)
if (pushTok[0] == '\\' && pushTok.find(' ') != string::npos) {
buff.clear();
pushTok = split(pushTok, buff, ' ');
} else {
buff = pushTok;
pushTok.clear();
}
status = LEX_TOKEN;
return true;
}
status = 0;
while (is && !status) {
unsigned char c = 0;
char cc = 0;
is.get(cc);
c = cc;
if (c >= ' ' && is) {
buff.clear();
if (c == '\\') { // first char == '\\'
do {
buff.push_back(c);
is.get(cc);
c = cc;
} while (c > ' ' && c != '\\' && is);
} else {
do {
buff.push_back(c);
is.get(cc);
c = cc;
} while (c >= ' ' && c != '\\' && is);
}
if (c == '\\') is.putback(c); // put it back
status = LEX_TOKEN;
}
if (c == '\n')
++lineno;
}
if (status) return true;
status = is.eof() ? LEX_FEOF: LEX_UNDEF;
buff.clear();
return false;
}
bool LyXLex::Pimpl::inputAvailable() {
return is.good();
}
void LyXLex::Pimpl::pushToken(string const & pt)
{
pushTok = pt;
}
} // namespace lyx

119
src/lyxlex_pimpl.h
View File

@ -1,119 +0,0 @@
// -*- C++ -*-
/**
* \file lyxlex_pimpl.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
*
* Full author contact details are available in file CREDITS.
*/
#ifndef LYXLEX_PIMPL_H
#define LYXLEX_PIMPL_H
#include "lyxlex.h"
#include "support/types.h"
# include <boost/iostreams/filtering_streambuf.hpp>
# include <boost/iostreams/filter/gzip.hpp>
# include <boost/iostreams/device/file.hpp>
namespace io = boost::iostreams;
#include <boost/utility.hpp>
#include <istream>
#include <stack>
#include <vector>
namespace lyx {
namespace support { class FileName; }
///
class LyXLex::Pimpl : boost::noncopyable {
public:
///
Pimpl(keyword_item * tab, int num);
///
std::string const getString() const;
///
docstring const getDocString() const;
///
void printError(std::string const & message) const;
///
void printTable(std::ostream & os);
///
void pushTable(keyword_item * tab, int num);
///
void popTable();
///
bool setFile(support::FileName const & filename);
///
void setStream(std::istream & i);
///
void setCommentChar(char c);
///
bool next(bool esc = false);
///
int search_kw(char const * const tag) const;
///
int lex();
///
bool eatLine();
///
bool nextToken();
/// test if there is a pushed token or the stream is ok
bool inputAvailable();
///
void pushToken(std::string const &);
/// fb_ is only used to open files, the stream is accessed through is.
std::filebuf fb_;
/// gz_ is only used to open files, the stream is accessed through is.
io::filtering_istreambuf gz_;
/// the stream that we use.
std::istream is;
///
std::string name;
///
keyword_item * table;
///
int no_items;
///
std::string buff;
///
int status;
///
int lineno;
///
std::string pushTok;
///
char commentChar;
private:
///
void verifyTable();
///
class pushed_table {
public:
///
pushed_table()
: table_elem(0), table_siz(0) {}
///
pushed_table(keyword_item * ki, int siz)
: table_elem(ki), table_siz(siz) {}
///
keyword_item * table_elem;
///
int table_siz;
};
///
std::stack<pushed_table> pushed;
};
} // namespace lyx
#endif

3
src/tex2lyx/Makefile.am
View File

@ -30,8 +30,7 @@ LINKED_FILES = \
lyxlayout.C \
lyxtextclass.C \
lyxtextclass.h \
lyxlex.C \
lyxlex_pimpl.C
lyxlex.C
BUILT_SOURCES = $(PCH_FILE) $(LINKED_FILES)