1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/*************************************************************************
** MetafontWrapper.cpp **
** **
** This file is part of dvisvgm -- the DVI to SVG converter **
** Copyright (C) 2005-2013 Martin Gieseking <martin.gieseking@uos.de> **
** **
** This program is free software; you can redistribute it and/or **
** modify it under the terms of the GNU General Public License as **
** published by the Free Software Foundation; either version 3 of **
** the License, or (at your option) any later version. **
** **
** This program is distributed in the hope that it will be useful, but **
** WITHOUT ANY WARRANTY; without even the implied warranty of **
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
** GNU General Public License for more details. **
** **
** You should have received a copy of the GNU General Public License **
** along with this program; if not, see <http://www.gnu.org/licenses/>. **
*************************************************************************/
#include <cstdlib>
#include <cctype>
#include <fstream>
#include <sstream>
#include "FileSystem.h"
#include "FileFinder.h"
#include "Message.h"
#include "MetafontWrapper.h"
#include "Process.h"
#include "SignalHandler.h"
#include "macros.h"
using namespace std;
MetafontWrapper::MetafontWrapper (const string &fname) : _fontname(fname)
{
}
/** Calls Metafont and evaluates the logfile. If a gf file was successfully
* generated the dpi value is stripped from the filename
* (e.g. cmr10.600gf => cmr10.gf). This makes life easier...
* @param[in] mode Metafont mode, e.g. "ljfour"
* @param[in] mag magnification factor
* @return true on success */
bool MetafontWrapper::call (const string &mode, double mag) {
if (!FileFinder::lookup(_fontname+".mf"))
return false; // mf file not available => no need to call the "slow" Metafont
FileSystem::remove(_fontname+".gf");
#ifdef __WIN32__
#ifdef TEXLIVEWIN32
const char *mfname = "mf-nowin.exe";
#else
const char *mfname = "mf.exe";
#endif
const char *cmd = FileFinder::lookup(mfname, false);
if (!cmd) {
Message::estream(true) << "can't run Metafont (" << mfname << " not found)\n";
return false;
}
#else
const char *cmd = "mf";
#endif
ostringstream oss;
oss << "\"\\mode=" << mode << ";"
"mag:=" << mag << ";"
"batchmode;"
"input " << _fontname << "\"";
Message::mstream(false, Message::MC_STATE) << "\nrunning Metafont for " << _fontname << '\n';
Process mf_process(cmd, oss.str().c_str());
mf_process.run();
// try to read Metafont's logfile and get name of created GF file
ifstream ifs((_fontname+".log").c_str());
if (ifs) {
char buf[128];
while (ifs) {
ifs.getline(buf, 128);
string line = buf;
if (line.substr(0, 15) == "! Interruption.")
SignalHandler::instance().trigger(true);
if (line.substr(0, 17) == "Output written on") {
size_t pos = line.find("gf ", 18+_fontname.length());
if (pos != string::npos) {
string gfname = line.substr(18, pos-16); // GF filename found
FileSystem::rename(gfname, _fontname+".gf");
}
break;
}
}
}
ifstream gf((_fontname+".gf").c_str());
return gf;
}
/** Calls Metafont if output files (tfm and gf) don't already exist.
* @param[in] mode Metafont mode to be used (e.g. 'ljfour')
* @param[in] mag magnification factor
* @return true on success */
bool MetafontWrapper::make (const string &mode, double mag) {
ifstream tfm((_fontname+".tfm").c_str());
ifstream gf((_fontname+".gf").c_str());
if (gf && tfm) // @@ distinguish between gf and tfm
return true;
return call(mode, mag);
}
bool MetafontWrapper::success () const {
ifstream tfm((_fontname+".tfm").c_str());
ifstream gf((_fontname+".gf").c_str());
return tfm && gf;
}
/** Remove all files created by a Metafont call (tfm, gf, log).
* @param[in] keepGF if true, GF files won't be removed */
void MetafontWrapper::removeOutputFiles (bool keepGF) {
removeOutputFiles(_fontname, keepGF);
}
/** Remove all files created by a Metafont call for a given font (tfm, gf, log).
* @param[in] fontname name of font whose temporary files should be removed
* @param[in] keepGF if true, GF files will be kept */
void MetafontWrapper::removeOutputFiles (const string &fontname, bool keepGF) {
const char *ext[] = {"gf", "tfm", "log", 0};
for (const char **p = keepGF ? ext+2 : ext; *p; ++p)
FileSystem::remove(fontname + "." + *p);
}
|
