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//========================================================================
//
// pdftotext.cc
//
// Copyright 1997-2013 Glyph & Cog, LLC
//
//========================================================================
#include <aconf.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#ifdef DEBUG_FP_LINUX
# include <fenv.h>
# include <fpu_control.h>
#endif
#include "parseargs.h"
#include "GString.h"
#include "gmem.h"
#include "GlobalParams.h"
#include "Object.h"
#include "Stream.h"
#include "Array.h"
#include "Dict.h"
#include "XRef.h"
#include "Catalog.h"
#include "Page.h"
#include "PDFDoc.h"
#include "TextOutputDev.h"
#include "CharTypes.h"
#include "UnicodeMap.h"
#include "TextString.h"
#include "Error.h"
#include "config.h"
static int firstPage = 1;
static int lastPage = 0;
static GBool physLayout = gFalse;
static GBool tableLayout = gFalse;
static GBool linePrinter = gFalse;
static GBool rawOrder = gFalse;
static double fixedPitch = 0;
static double fixedLineSpacing = 0;
static GBool clipText = gFalse;
static char textEncName[128] = "";
static char textEOL[16] = "";
static GBool noPageBreaks = gFalse;
static char ownerPassword[33] = "\001";
static char userPassword[33] = "\001";
static GBool quiet = gFalse;
static char cfgFileName[256] = "";
static GBool printVersion = gFalse;
static GBool printHelp = gFalse;
static ArgDesc argDesc[] = {
{"-f", argInt, &firstPage, 0,
"first page to convert"},
{"-l", argInt, &lastPage, 0,
"last page to convert"},
{"-layout", argFlag, &physLayout, 0,
"maintain original physical layout"},
{"-table", argFlag, &tableLayout, 0,
"similar to -layout, but optimized for tables"},
{"-lineprinter", argFlag, &linePrinter, 0,
"use strict fixed-pitch/height layout"},
{"-raw", argFlag, &rawOrder, 0,
"keep strings in content stream order"},
{"-fixed", argFP, &fixedPitch, 0,
"assume fixed-pitch (or tabular) text"},
{"-linespacing", argFP, &fixedLineSpacing, 0,
"fixed line spacing for LinePrinter mode"},
{"-clip", argFlag, &clipText, 0,
"separate clipped text"},
{"-enc", argString, textEncName, sizeof(textEncName),
"output text encoding name"},
{"-eol", argString, textEOL, sizeof(textEOL),
"output end-of-line convention (unix, dos, or mac)"},
{"-nopgbrk", argFlag, &noPageBreaks, 0,
"don't insert page breaks between pages"},
{"-opw", argString, ownerPassword, sizeof(ownerPassword),
"owner password (for encrypted files)"},
{"-upw", argString, userPassword, sizeof(userPassword),
"user password (for encrypted files)"},
{"-q", argFlag, &quiet, 0,
"don't print any messages or errors"},
{"-cfg", argString, cfgFileName, sizeof(cfgFileName),
"configuration file to use in place of .xpdfrc"},
{"-v", argFlag, &printVersion, 0,
"print copyright and version info"},
{"-h", argFlag, &printHelp, 0,
"print usage information"},
{"-help", argFlag, &printHelp, 0,
"print usage information"},
{"--help", argFlag, &printHelp, 0,
"print usage information"},
{"-?", argFlag, &printHelp, 0,
"print usage information"},
{NULL}
};
int main(int argc, char *argv[]) {
PDFDoc *doc;
GString *fileName;
GString *textFileName;
GString *ownerPW, *userPW;
TextOutputControl textOutControl;
TextOutputDev *textOut;
UnicodeMap *uMap;
Object info;
GBool ok;
char *p;
int exitCode;
#ifdef DEBUG_FP_LINUX
// enable exceptions on floating point div-by-zero
feenableexcept(FE_DIVBYZERO);
// force 64-bit rounding: this avoids changes in output when minor
// code changes result in spills of x87 registers; it also avoids
// differences in output with valgrind's 64-bit floating point
// emulation (yes, this is a kludge; but it's pretty much
// unavoidable given the x87 instruction set; see gcc bug 323 for
// more info)
fpu_control_t cw;
_FPU_GETCW(cw);
cw = (cw & ~_FPU_EXTENDED) | _FPU_DOUBLE;
_FPU_SETCW(cw);
#endif
exitCode = 99;
// parse args
ok = parseArgs(argDesc, &argc, argv);
if (!ok || argc < 2 || argc > 3 || printVersion || printHelp) {
fprintf(stderr, "pdftotext version %s\n", xpdfVersion);
fprintf(stderr, "%s\n", xpdfCopyright);
if (!printVersion) {
printUsage("pdftotext", "<PDF-file> [<text-file>]", argDesc);
}
goto err0;
}
fileName = new GString(argv[1]);
// read config file
globalParams = new GlobalParams(cfgFileName);
if (textEncName[0]) {
globalParams->setTextEncoding(textEncName);
}
if (textEOL[0]) {
if (!globalParams->setTextEOL(textEOL)) {
fprintf(stderr, "Bad '-eol' value on command line\n");
}
}
if (noPageBreaks) {
globalParams->setTextPageBreaks(gFalse);
}
if (quiet) {
globalParams->setErrQuiet(quiet);
}
// get mapping to output encoding
if (!(uMap = globalParams->getTextEncoding())) {
error(errConfig, -1, "Couldn't get text encoding");
delete fileName;
goto err1;
}
// open PDF file
if (ownerPassword[0] != '\001') {
ownerPW = new GString(ownerPassword);
} else {
ownerPW = NULL;
}
if (userPassword[0] != '\001') {
userPW = new GString(userPassword);
} else {
userPW = NULL;
}
doc = new PDFDoc(fileName, ownerPW, userPW);
if (userPW) {
delete userPW;
}
if (ownerPW) {
delete ownerPW;
}
if (!doc->isOk()) {
exitCode = 1;
goto err2;
}
// check for copy permission
if (!doc->okToCopy()) {
error(errNotAllowed, -1,
"Copying of text from this document is not allowed.");
exitCode = 3;
goto err2;
}
// construct text file name
if (argc == 3) {
textFileName = new GString(argv[2]);
} else {
p = fileName->getCString() + fileName->getLength() - 4;
if (!strcmp(p, ".pdf") || !strcmp(p, ".PDF")) {
textFileName = new GString(fileName->getCString(),
fileName->getLength() - 4);
} else {
textFileName = fileName->copy();
}
textFileName->append(".txt");
}
// get page range
if (firstPage < 1) {
firstPage = 1;
}
if (lastPage < 1 || lastPage > doc->getNumPages()) {
lastPage = doc->getNumPages();
}
// write text file
if (tableLayout) {
textOutControl.mode = textOutTableLayout;
textOutControl.fixedPitch = fixedPitch;
} else if (physLayout) {
textOutControl.mode = textOutPhysLayout;
textOutControl.fixedPitch = fixedPitch;
} else if (linePrinter) {
textOutControl.mode = textOutLinePrinter;
textOutControl.fixedPitch = fixedPitch;
textOutControl.fixedLineSpacing = fixedLineSpacing;
} else if (rawOrder) {
textOutControl.mode = textOutRawOrder;
} else {
textOutControl.mode = textOutReadingOrder;
}
textOutControl.clipText = clipText;
textOut = new TextOutputDev(textFileName->getCString(), &textOutControl,
gFalse);
if (textOut->isOk()) {
doc->displayPages(textOut, firstPage, lastPage, 72, 72, 0,
gFalse, gTrue, gFalse);
} else {
delete textOut;
exitCode = 2;
goto err3;
}
delete textOut;
exitCode = 0;
// clean up
err3:
delete textFileName;
err2:
delete doc;
uMap->decRefCnt();
err1:
delete globalParams;
err0:
return exitCode;
}
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