#include <config.h>
-#ifdef __GNUG__
-#pragma implementation
-#endif
-#include <algorithm>
-
#include "lyxlex_pimpl.h"
+#include "debug.h"
+
#include "support/lyxalgo.h"
#include "support/filetools.h"
#include "support/lstrings.h"
-#include "debug.h"
+
+#include <algorithm>
+
+using namespace lyx::support;
using std::sort;
using std::ostream;
using std::istream;
using std::endl;
using std::lower_bound;
+using std::vector;
+using std::getline;
// namespace {
struct compare_tags {
string const LyXLex::Pimpl::getString() const
{
- return string(buff);
+ return string(buff.begin(), buff.end());
}
bool LyXLex::Pimpl::setFile(string const & filename)
{
+ // Is this a compressed file or not?
+ bool const compressed = (filename.substr(filename.size() - 3, 3) == ".gz");
+
// 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() || is.tellg() > 0)
- lyxerr[Debug::LYXLEX] << "Error in LyXLex::setFile: "
- "file or stream already set." << endl;
- fb__.open(filename.c_str(), ios::in);
- is.rdbuf(&fb__);
- name = filename;
- lineno = 0;
- return fb__.is_open() && is.good();
+ if (compressed) {
+ lyxerr << "lyxlex: compressed" << endl;
+
+ if (gz__.is_open() || is.tellg() > 0)
+ lyxerr[Debug::LYXLEX] << "Error in LyXLex::setFile: "
+ "file or stream already set." << endl;
+ gz__.open(filename.c_str(), ios::in);
+ is.rdbuf(&gz__);
+ name = filename;
+ lineno = 0;
+ return gz__.is_open() && is.good();
+ } else {
+ lyxerr << "lyxlex: UNcompressed" << endl;
+
+ if (fb__.is_open() || is.tellg() > 0)
+ lyxerr[Debug::LYXLEX] << "Error in LyXLex::setFile: "
+ "file or stream already set." << endl;
+ fb__.open(filename.c_str(), ios::in);
+ is.rdbuf(&fb__);
+ name = filename;
+ lineno = 0;
+ return fb__.is_open() && is.good();
+ }
+
}
lineno = 0;
}
+
void LyXLex::Pimpl::setCommentChar(char c)
{
commentChar = c;
// There can have been a whole line pushed so
// we extract the first word and leaves the rest
// in pushTok. (Lgb)
- if (pushTok.find(' ') != string::npos) {
+ if (pushTok.find(' ') != string::npos && pushTok[0] == '\\') {
string tmp;
pushTok = split(pushTok, tmp, ' ');
- tmp.copy(buff, string::npos);
- buff[tmp.length()] = '\0';
+ buff.assign(tmp.begin(), tmp.end());
return true;
} else {
- pushTok.copy(buff, string::npos);
- buff[pushTok.length()] = '\0';
+ buff.assign(pushTok.begin(), pushTok.end());
pushTok.erase();
return true;
}
c = cc;
if (c == commentChar) {
// Read rest of line (fast :-)
- // That is not fast... (Lgb)
#if 1
- is.getline(buff, sizeof(buff));
+ // That is not fast... (Lgb)
+ string dummy;
+ getline(is, dummy);
+
lyxerr[Debug::LYXLEX] << "Comment read: `" << c
- << buff << "'" << endl;
+ << dummy << '\'' << endl;
#else
// unfortunately ignore is buggy (Lgb)
is.ignore(100, '\n');
}
if (c == '\"') {
- int i = -1;
+ buff.clear();
+
do {
is.get(cc);
c = cc;
if (c != '\r')
- buff[++i] = c;
- } while (c != '\"' && c != '\n' && is &&
- i != (LEX_MAX_BUFF - 2));
-
- if (i == (LEX_MAX_BUFF - 2)) {
- printError("Line too long");
- c = '\"'; // Pretend we got a "
- ++i;
- }
+ buff.push_back(c);
+ } while (c != '\"' && c != '\n' && is);
if (c != '\"') {
printError("Missing quote");
++lineno;
}
- buff[i] = '\0';
+ buff.pop_back();
status = LEX_DATA;
break;
}
// the type _have_ to be unsigned. It usually a
// lot better to use the functions from cctype
if (c > ' ' && is) {
- int i = 0;
+ buff.clear();
+
do {
- buff[i++] = c;
+ buff.push_back(c);
is.get(cc);
c = cc;
- } while (c > ' ' && c != ',' && is
- && (i != LEX_MAX_BUFF - 1));
- if (i == LEX_MAX_BUFF - 1) {
- printError("Line too long");
- }
- buff[i] = '\0';
+ } while (c > ' ' && c != ',' && is);
+
status = LEX_TOKEN;
}
if (status) return true;
status = is.eof() ? LEX_FEOF: LEX_UNDEF;
- buff[0] = '\0';
+ buff.clear();
return false;
} else {
unsigned char c = 0; // getc() returns an int
if (c == '\\') {
// escape
- int i = 0;
+ buff.clear();
+
do {
if (c == '\\') {
// escape the next char
is.get(cc);
c = cc;
}
- buff[i++] = c;
+ buff.push_back(c);
is.get(cc);
c = cc;
- } while (c > ' ' && c != ',' && is
- && (i != LEX_MAX_BUFF - 1));
- if (i == LEX_MAX_BUFF - 1) {
- printError("Line too long");
- }
- buff[i] = '\0';
+ } while (c > ' ' && c != ',' && is);
+
status = LEX_TOKEN;
continue;
}
if (c == commentChar) {
// Read rest of line (fast :-)
- // That is still not fast... (Lgb)
#if 1
- is.getline(buff, sizeof(buff));
+ // That is still not fast... (Lgb)
+ string dummy;
+ getline(is, dummy);
+
lyxerr[Debug::LYXLEX] << "Comment read: `" << c
- << buff << "'" << endl;
+ << dummy << '\'' << endl;
#else
// but ignore is also still buggy (Lgb)
// This is fast (Lgb)
// string
if (c == '\"') {
- int i = -1;
+ buff.clear();
+
bool escaped = false;
do {
escaped = false;
if (c == '\"' || c == '\\')
escaped = true;
else
- buff[++i] = '\\';
+ buff.push_back('\\');
}
- buff[++i] = c;
+ buff.push_back(c);
if (!escaped && c == '\"') break;
- } while (c != '\n' && is &&
- i != (LEX_MAX_BUFF - 2));
-
- if (i == (LEX_MAX_BUFF - 2)) {
- printError("Line too long");
- c = '\"'; // Pretend we got a "
- ++i;
- }
+ } while (c != '\n' && is);
if (c != '\"') {
printError("Missing quote");
++lineno;
}
- buff[i] = '\0';
+ buff.pop_back();
status = LEX_DATA;
break;
}
if (c > ' ' && is) {
- int i = 0;
+ buff.clear();
+
do {
if (c == '\\') {
// escape the next char
c = cc;
//escaped = true;
}
- buff[i++] = c;
+ buff.push_back(c);
is.get(cc);
c = cc;
- } while (c > ' ' && c != ',' && is
- && (i != LEX_MAX_BUFF - 1));
- if (i == LEX_MAX_BUFF - 1) {
- printError("Line too long");
- }
- buff[i] = '\0';
+ } while (c > ' ' && c != ',' && is);
+
status = LEX_TOKEN;
}
// new line
if (status) return true;
status = is.eof() ? LEX_FEOF : LEX_UNDEF;
- buff[0] = '\0';
+ buff.clear();
return false;
}
}
int LyXLex::Pimpl::lex()
{
//NOTE: possible bug.
- if (next() && status == LEX_TOKEN)
- return search_kw(buff);
- else
+ if (next() && status == LEX_TOKEN) {
+ return search_kw(getString().c_str());
+ } else
return status;
}
bool LyXLex::Pimpl::eatLine()
{
- int i = 0;
+ buff.clear();
+
unsigned char c = '\0';
char cc = 0;
- while (is && c != '\n' && i != (LEX_MAX_BUFF - 1)) {
+ while (is && c != '\n') {
is.get(cc);
c = cc;
//lyxerr[Debug::LYXLEX] << "LyXLex::EatLine read char: `"
- // << c << "'" << endl;
+ // << c << '\'' << endl;
if (c != '\r')
- buff[i++] = c;
- }
- if (i == (LEX_MAX_BUFF - 1) && c != '\n') {
- printError("Line too long");
- c = '\n'; // Pretend we had an end of line
- --lineno; // but don't increase line counter (netto effect)
- ++i; // and preserve last character read.
+ buff.push_back(c);
}
+
if (c == '\n') {
++lineno;
- buff[--i] = '\0'; // i can never be 0 here, so no danger
+ buff.pop_back();
status = LEX_DATA;
return true;
} else {
- buff[i] = '\0';
return false;
}
}
// There can have been a whole line pushed so
// we extract the first word and leaves the rest
// in pushTok. (Lgb)
- if (pushTok.find(' ') != string::npos) {
+ if (pushTok.find(' ') != string::npos && pushTok[0] == '\\') {
string tmp;
pushTok = split(pushTok, tmp, ' ');
- tmp.copy(buff, string::npos);
- buff[tmp.length()] = '\0';
+ buff.assign(tmp.begin(), tmp.end());
return true;
} else {
- pushTok.copy(buff, string::npos);
- buff[pushTok.length()] = '\0';
+ buff.assign(pushTok.begin(), pushTok.end());
pushTok.erase();
return true;
}
is.get(cc);
c = cc;
if (c >= ' ' && is) {
- int i = 0;
+ buff.clear();
+
if (c == '\\') { // first char == '\\'
do {
- buff[i++] = c;
+ buff.push_back(c);
is.get(cc);
c = cc;
- } while (c > ' ' && c != '\\' && is
- && i != (LEX_MAX_BUFF - 1));
+ } while (c > ' ' && c != '\\' && is);
} else {
do {
- buff[i++] = c;
+ buff.push_back(c);
is.get(cc);
c = cc;
- } while (c >= ' ' && c != '\\' && is
- && i != (LEX_MAX_BUFF - 1));
- }
-
- if (i == (LEX_MAX_BUFF - 1)) {
- printError("Line too long");
+ } while (c >= ' ' && c != '\\' && is);
}
if (c == '\\') is.putback(c); // put it back
- buff[i] = '\0';
status = LEX_TOKEN;
}
if (status) return true;
status = is.eof() ? LEX_FEOF: LEX_UNDEF;
- buff[0] = '\0';
+ buff.clear();
return false;
}