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Current File : //usr/share/emscripten/tests/poppler/fofi/FoFiType1.cc
//========================================================================
//
// FoFiType1.cc
//
// Copyright 1999-2003 Glyph & Cog, LLC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005, 2008, 2010 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2005 Kristian Høgsberg <krh@redhat.com>
// Copyright (C) 2010 Jakub Wilk <ubanus@users.sf.net>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#include <config.h>
#ifdef USE_GCC_PRAGMAS
#pragma implementation
#endif
#include <stdlib.h>
#include <string.h>
#include "goo/gmem.h"
#include "goo/GooLikely.h"
#include "FoFiEncodings.h"
#include "FoFiType1.h"
#include "poppler/Error.h"
//------------------------------------------------------------------------
// FoFiType1
//------------------------------------------------------------------------
FoFiType1 *FoFiType1::make(char *fileA, int lenA) {
return new FoFiType1(fileA, lenA, gFalse);
}
FoFiType1 *FoFiType1::load(char *fileName) {
char *fileA;
int lenA;
if (!(fileA = FoFiBase::readFile(fileName, &lenA))) {
return NULL;
}
return new FoFiType1(fileA, lenA, gTrue);
}
FoFiType1::FoFiType1(char *fileA, int lenA, GBool freeFileDataA):
FoFiBase(fileA, lenA, freeFileDataA)
{
name = NULL;
encoding = NULL;
parsed = gFalse;
}
FoFiType1::~FoFiType1() {
int i;
if (name) {
gfree(name);
}
if (encoding && encoding != fofiType1StandardEncoding) {
for (i = 0; i < 256; ++i) {
gfree(encoding[i]);
}
gfree(encoding);
}
}
char *FoFiType1::getName() {
if (!parsed) {
parse();
}
return name;
}
char **FoFiType1::getEncoding() {
if (!parsed) {
parse();
}
return encoding;
}
void FoFiType1::writeEncoded(char **newEncoding,
FoFiOutputFunc outputFunc, void *outputStream) {
char buf[512];
char *line, *line2, *p;
int i;
// copy everything up to the encoding
for (line = (char *)file;
line && strncmp(line, "/Encoding", 9);
line = getNextLine(line)) ;
if (!line) {
// no encoding - just copy the whole font file
(*outputFunc)(outputStream, (char *)file, len);
return;
}
(*outputFunc)(outputStream, (char *)file, line - (char *)file);
// write the new encoding
(*outputFunc)(outputStream, "/Encoding 256 array\n", 20);
(*outputFunc)(outputStream,
"0 1 255 {1 index exch /.notdef put} for\n", 40);
for (i = 0; i < 256; ++i) {
if (newEncoding[i]) {
sprintf(buf, "dup %d /%s put\n", i, newEncoding[i]);
(*outputFunc)(outputStream, buf, strlen(buf));
}
}
(*outputFunc)(outputStream, "readonly def\n", 13);
// find the end of the encoding data
//~ this ought to parse PostScript tokens
if (!strncmp(line, "/Encoding StandardEncoding def", 30)) {
line = getNextLine(line);
} else {
// skip "/Encoding" + one whitespace char,
// then look for 'def' preceded by PostScript whitespace
p = line + 10;
line = NULL;
for (; p < (char *)file + len; ++p) {
if ((*p == ' ' || *p == '\t' || *p == '\x0a' ||
*p == '\x0d' || *p == '\x0c' || *p == '\0') &&
p + 4 <= (char *)file + len &&
!strncmp(p + 1, "def", 3)) {
line = p + 4;
break;
}
}
}
// some fonts have two /Encoding entries in their dictionary, so we
// check for a second one here
if (line) {
for (line2 = line, i = 0;
i < 20 && line2 && strncmp(line2, "/Encoding", 9);
line2 = getNextLine(line2), ++i) ;
if (i < 20 && line2) {
(*outputFunc)(outputStream, line, line2 - line);
if (!strncmp(line2, "/Encoding StandardEncoding def", 30)) {
line = getNextLine(line2);
} else {
// skip "/Encoding" + one whitespace char,
// then look for 'def' preceded by PostScript whitespace
p = line2 + 10;
line = NULL;
for (; p < (char *)file + len; ++p) {
if ((*p == ' ' || *p == '\t' || *p == '\x0a' ||
*p == '\x0d' || *p == '\x0c' || *p == '\0') &&
p + 4 <= (char *)file + len &&
!strncmp(p + 1, "def", 3)) {
line = p + 4;
break;
}
}
}
}
// copy everything after the encoding
if (line) {
(*outputFunc)(outputStream, line, ((char *)file + len) - line);
}
}
}
char *FoFiType1::getNextLine(char *line) {
while (line < (char *)file + len && *line != '\x0a' && *line != '\x0d') {
++line;
}
if (line < (char *)file + len && *line == '\x0d') {
++line;
}
if (line < (char *)file + len && *line == '\x0a') {
++line;
}
if (line >= (char *)file + len) {
return NULL;
}
return line;
}
void FoFiType1::parse() {
char *line, *line1, *p, *p2;
char buf[256];
char c;
int n, code, i, j;
char *tokptr;
for (i = 1, line = (char *)file;
i <= 100 && line && (!name || !encoding);
++i) {
// get font name
if (!name && !strncmp(line, "/FontName", 9)) {
strncpy(buf, line, 255);
buf[255] = '\0';
if ((p = strchr(buf+9, '/')) &&
(p = strtok_r(p+1, " \t\n\r", &tokptr))) {
name = copyString(p);
}
line = getNextLine(line);
// get encoding
} else if (!encoding &&
!strncmp(line, "/Encoding StandardEncoding def", 30)) {
encoding = fofiType1StandardEncoding;
} else if (!encoding &&
!strncmp(line, "/Encoding 256 array", 19)) {
encoding = (char **)gmallocn(256, sizeof(char *));
for (j = 0; j < 256; ++j) {
encoding[j] = NULL;
}
for (j = 0, line = getNextLine(line);
j < 300 && line && (line1 = getNextLine(line));
++j, line = line1) {
if ((n = line1 - line) > 255) {
error(-1, "FoFiType1::parse a line has more than 255 characters, we don't support this");
n = 255;
}
strncpy(buf, line, n);
buf[n] = '\0';
for (p = buf; *p == ' ' || *p == '\t'; ++p) ;
if (!strncmp(p, "dup", 3)) {
for (p += 3; *p == ' ' || *p == '\t'; ++p) ;
for (p2 = p; *p2 >= '0' && *p2 <= '9'; ++p2) ;
if (*p2) {
c = *p2; // store it so we can recover it after atoi
*p2 = '\0'; // terminate p so atoi works
code = atoi(p);
*p2 = c;
if (code == 8 && *p2 == '#') {
code = 0;
for (++p2; *p2 >= '0' && *p2 <= '7'; ++p2) {
code = code * 8 + (*p2 - '0');
}
}
if (likely(code < 256 && code >= 0)) {
for (p = p2; *p == ' ' || *p == '\t'; ++p) ;
if (*p == '/') {
++p;
for (p2 = p; *p2 && *p2 != ' ' && *p2 != '\t'; ++p2) ;
c = *p2; // store it so we can recover it after copyString
*p2 = '\0'; // terminate p so copyString works
encoding[code] = copyString(p);
*p2 = c;
p = p2;
for (; *p == ' ' || *p == '\t'; ++p); // eat spaces between string and put
if (!strncmp(p, "put", 3)) {
// eat put and spaces and newlines after put
for (p += 3; *p == ' ' || *p == '\t' || *p == '\n' || *p == '\r'; ++p);
if (*p)
{
// there is still something after the definition
// there might be another definition in this line
// so move line1 to the end of our parsing
// so we start in the potential next definition in the next loop
line1 = &line[p - buf];
}
} else {
error(-1, "FoFiType1::parse no put after dup");
}
}
}
}
} else {
if (strtok_r(buf, " \t", &tokptr) &&
(p = strtok_r(NULL, " \t\n\r", &tokptr)) && !strcmp(p, "def")) {
break;
}
}
}
//~ check for getinterval/putinterval junk
} else {
line = getNextLine(line);
}
}
parsed = gTrue;
}
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