diff options
Diffstat (limited to 'filters/kword/pdf/xpdf/xpdf/pdftotext.cpp')
| -rw-r--r-- | filters/kword/pdf/xpdf/xpdf/pdftotext.cpp | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/filters/kword/pdf/xpdf/xpdf/pdftotext.cpp b/filters/kword/pdf/xpdf/xpdf/pdftotext.cpp new file mode 100644 index 000000000..b2e68b422 --- /dev/null +++ b/filters/kword/pdf/xpdf/xpdf/pdftotext.cpp @@ -0,0 +1,322 @@ +//======================================================================== +// +// pdftotext.cpp +// +// Copyright 1997-2002 Glyph & Cog, LLC +// +//======================================================================== + +#include <aconf.h> +#include <stdio.h> +#include <stdlib.h> +#include <stddef.h> +#include <string.h> +#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 "Error.h" +#include "config.h" + +static void printInfoString(FILE *f, Dict *infoDict, char *key, + char *text1, char *text2, UnicodeMap *uMap); +static void printInfoDate(FILE *f, Dict *infoDict, char *key, char *fmt); + +static int firstPage = 1; +static int lastPage = 0; +static GBool rawOrder = gFalse; +static GBool htmlMeta = gFalse; +static char textEncName[128] = ""; +static char textEOL[16] = ""; +static char ownerPassword[33] = ""; +static char userPassword[33] = ""; +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"}, + {"-raw", argFlag, &rawOrder, 0, + "keep strings in content stream order"}, + {"-htmlmeta", argFlag, &htmlMeta, 0, + "generate a simple HTML file, including the meta information"}, + {"-enc", argString, textEncName, sizeof(textEncName), + "output text encoding name"}, + {"-eol", argString, textEOL, sizeof(textEOL), + "output end-of-line convention (unix, dos, or mac)"}, + {"-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; + TextOutputDev *textOut; + FILE *f; + UnicodeMap *uMap; + Object info; + GBool ok; + char *p; + int exitCode; + + 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 (quiet) { + globalParams->setErrQuiet(quiet); + } + + // get mapping to output encoding + if (!(uMap = globalParams->getTextEncoding())) { + error(-1, "Couldn't get text encoding"); + delete fileName; + goto err1; + } + + // open PDF file + if (ownerPassword[0]) { + ownerPW = new GString(ownerPassword); + } else { + ownerPW = NULL; + } + if (userPassword[0]) { + 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(-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(htmlMeta ? ".html" : ".txt"); + } + + // get page range + if (firstPage < 1) { + firstPage = 1; + } + if (lastPage < 1 || lastPage > doc->getNumPages()) { + lastPage = doc->getNumPages(); + } + + // write HTML header + if (htmlMeta) { + if (!textFileName->cmp("-")) { + f = stdout; + } else { + if (!(f = fopen(textFileName->getCString(), "wb"))) { + error(-1, "Couldn't open text file '%s'", textFileName->getCString()); + exitCode = 2; + goto err3; + } + } + fputs("<html>\n", f); + fputs("<head>\n", f); + doc->getDocInfo(&info); + if (info.isDict()) { + printInfoString(f, info.getDict(), "Title", "<title>", "</title>\n", + uMap); + printInfoString(f, info.getDict(), "Subject", + "<meta name=\"Subject\" content=\"", "\">\n", uMap); + printInfoString(f, info.getDict(), "Keywords", + "<meta name=\"Keywords\" content=\"", "\">\n", uMap); + printInfoString(f, info.getDict(), "Author", + "<meta name=\"Author\" content=\"", "\">\n", uMap); + printInfoString(f, info.getDict(), "Creator", + "<meta name=\"Creator\" content=\"", "\">\n", uMap); + printInfoString(f, info.getDict(), "Producer", + "<meta name=\"Producer\" content=\"", "\">\n", uMap); + printInfoDate(f, info.getDict(), "CreationDate", + "<meta name=\"CreationDate\" content=\"\">\n"); + printInfoDate(f, info.getDict(), "LastModifiedDate", + "<meta name=\"ModDate\" content=\"\">\n"); + } + info.free(); + fputs("</head>\n", f); + fputs("<body>\n", f); + fputs("<pre>\n", f); + if (f != stdout) { + fclose(f); + } + } + + // write text file + textOut = new TextOutputDev(textFileName->getCString(), rawOrder, htmlMeta); + if (textOut->isOk()) { + doc->displayPages(textOut, firstPage, lastPage, 72, 0, gFalse); + } else { + delete textOut; + exitCode = 2; + goto err3; + } + delete textOut; + + // write end of HTML file + if (htmlMeta) { + if (!textFileName->cmp("-")) { + f = stdout; + } else { + if (!(f = fopen(textFileName->getCString(), "ab"))) { + error(-1, "Couldn't open text file '%s'", textFileName->getCString()); + exitCode = 2; + goto err3; + } + } + fputs("</pre>\n", f); + fputs("</body>\n", f); + fputs("</html>\n", f); + if (f != stdout) { + fclose(f); + } + } + + exitCode = 0; + + // clean up + err3: + delete textFileName; + err2: + delete doc; + uMap->decRefCnt(); + err1: + delete globalParams; + err0: + + // check for memory leaks + Object::memCheck(stderr); + gMemReport(stderr); + + return exitCode; +} + +static void printInfoString(FILE *f, Dict *infoDict, char *key, + char *text1, char *text2, UnicodeMap *uMap) { + Object obj; + GString *s1; + GBool isUnicode; + Unicode u; + char buf[8]; + int i, n; + + if (infoDict->lookup(key, &obj)->isString()) { + fputs(text1, f); + s1 = obj.getString(); + if ((s1->getChar(0) & 0xff) == 0xfe && + (s1->getChar(1) & 0xff) == 0xff) { + isUnicode = gTrue; + i = 2; + } else { + isUnicode = gFalse; + i = 0; + } + while (i < obj.getString()->getLength()) { + if (isUnicode) { + u = ((s1->getChar(i) & 0xff) << 8) | + (s1->getChar(i+1) & 0xff); + i += 2; + } else { + u = s1->getChar(i) & 0xff; + ++i; + } + n = uMap->mapUnicode(u, buf, sizeof(buf)); + fwrite(buf, 1, n, f); + } + fputs(text2, f); + } + obj.free(); +} + +static void printInfoDate(FILE *f, Dict *infoDict, char *key, char *fmt) { + Object obj; + char *s; + + if (infoDict->lookup(key, &obj)->isString()) { + s = obj.getString()->getCString(); + if (s[0] == 'D' && s[1] == ':') { + s += 2; + } + fprintf(f, fmt, s); + } + obj.free(); +} |