buffer[++(*bufptr)]=c;
if (*bufptr >= PARAGRAPH_BUFFER-2) {
buffer[++(*bufptr)]=0;
+/*****************************************************************/
+/* Reading routines for MS-Word, MS-Write and text files */
+/* */
+/* This file is part of catdoc project */
+/* (c) Victor Wagner 1996-2003, (c) Alex Ott 2003 */
+/*****************************************************************/
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <string.h>
+#include <stdio.h>
+#include "catdoc.h"
+unsigned short int buffer[PARAGRAPH_BUFFER];
+static unsigned char read_buf[256];
+static int buf_is_unicode;
+
+/**************************************************************************/
+/* Just prints out content of input file. Called when file is not OLE */
+/* stream */
+/* Parameters - f - file to copy out. header - first few bytes of file, */
+/* which have been already read by format recognition code, but should */
+/* be output anyway */
+/**************************************************************************/
+void copy_out (FILE *f,char *header) {
+ char *buf=(char *)buffer;
+ int count,i;
+ long offset;
+ if (get_unicode_char == get_word8_char) {
+ /* non-word file and -u specified. Trying to guess which kind of
+ * unicode is used
+ */
+ if ((unsigned char)header[0]==0xFE && (unsigned char)header[1]==0xFF) {
+ get_unicode_char = get_utf16msb;
+ fputs(convert_char(header[2]<<8|header[3]),stdout);
+ fputs(convert_char(header[4]<<8|header[5]),stdout);
+ fputs(convert_char(header[6]<<8|header[7]),stdout);
+ } else if ((unsigned char)header[0]!=0xFF ||
+ (unsigned char)header[1]!=0xFE) {
+ int c,j,d;
+ /* if it is not utf16, assume it is UTF8. We are told -u,
+ * aren't we */
+ get_unicode_char = get_utf8;
+ i=0;
+ while (i<8) {
+ c=(unsigned char)header[i++];
+ if (c >=0x80) {
+ if ( c<0xE0) {
+ c=(c & 0x1F);
+ count =1;
+ } else {
+ c=(c & 0xF);
+ count = 2;
+ }
+ for (j=0;j<count;j++) {
+ if (i<7) {
+ d=(unsigned char) header[i++];
+ } else {
+ d=fgetc(f);
+ }
+ c=c<<6 | (d & 0x3F);
+ }
+ }
+ fputs (convert_char(c),stdout);
+ }
+ } else {
+ get_unicode_char = get_utf16lsb;
+ fputs(convert_char(header[3]<<8|header[2]),stdout);
+ fputs(convert_char(header[5]<<8|header[4]),stdout);
+ fputs(convert_char(header[7]<<8|header[6]),stdout);
+ }
+ while (!catdoc_eof(f)) {
+ i=get_unicode_char(f,&offset,0x7FFFFFFF);
+ if (i!=EOF) fputs(convert_char(i),stdout);
+ }
+ } else {
+ for (i=0;i<8;i++) {
+ fputs(convert_char(to_unicode(source_charset,(unsigned char)header[i])),stdout);
+ }
+ /* Assuming 8-bit input text */
+ while ((count = catdoc_read(buf,1,PARAGRAPH_BUFFER,f))) {
+ for (i=0;i<count;i++) {
+ fputs(convert_char(to_unicode(source_charset,
+ (unsigned char)buf[i])),stdout);
+ }
+ }
+ }
+}
+/**************************************************************************/
+/* process_file - main process engine. Reads word file using function, */
+/* pointed by get_unicode_char, searches for things which looks like */
+/* paragraphs and print them out */
+/**************************************************************************/
+int process_file(FILE *f,long stop) {
+ int bufptr;
+ int tabmode=0;
+ long offset=0;
+ int hyperlink_mode = 0;
+ unsigned short c;
+ /* Now we are starting to read with get_unicode_char */
+ while (!catdoc_eof(f) && offset<stop) {
+ bufptr = -1;
+ do {
+ c=get_unicode_char(f,&offset,stop);
+ /* Following symbols below 32 are allowed inside paragraph:
+ 0x0002 - footnote mark
+ 0x0007 - table separator (converted to tabmode)
+ 0x0009 - Horizontal tab ( printed as is)
+ 0x000B - hard return
+ 0x000C - page break
+ 0x000D - return - marks an end of paragraph
+ 0x001E - IS2 for some reason means short defis in Word.
+ 0x001F - soft hyphen in Word
+ 0x0013 - start embedded hyperlink
+ 0x0014 - separate hyperlink URL from text
+ 0x0015 - end embedded hyperlink
+ */
+ if (tabmode) {
+ tabmode=0;
+ if (c==0x007) {
+ buffer[++bufptr]=0x1E;
+ continue;
+ } else {
+ buffer[++bufptr]=0x1C;
+ }
+ }
+ if (c<32) {
+ switch (c) {
+ case 0x007:
+ tabmode = 1;
+ break;
+ case 0x000D:
+ case 0x000B:
+ buffer[++bufptr]=0x000A;
+ break;
+ case 0x000C:
+ buffer[++bufptr]=c;
+ break;
+ case 0x001E:
+ buffer[++bufptr]='-';
+ break;
+ case 0x0002: break;
+
+ case 0x001F:
+ buffer[++bufptr]=0xAD;/* translate to Unicode
+ soft hyphen */
+ break;
+ case 0x0009:
+ buffer[++bufptr]=c;
+ break;
+ case 0x0013:
+ hyperlink_mode=1;
+ buffer[++bufptr]=' ';
+ break;
+ case 0x0014:
+ hyperlink_mode = 0;
+ /*fall through */
+ case 0x0015:
+ /* just treat hyperlink separators as
+ * space */
+ buffer[++bufptr]=' ';
+ break;
+ case 0x0001: if (hyperlink_mode)
+ break;
+ /* else fall through */
+ default:
+ bufptr=-1; /* Any other control char - discard para*/
+ }
+ } else if (c != 0xfeff) {
+ /* skip ZERO-WIDTH-UNBREAKABLE-SPACE. Output anything
+ * else*/
+ buffer[++bufptr]=c;
+ }
+ } while (bufptr<=PARAGRAPH_BUFFER-2 &&
+ !catdoc_eof(f) &&
+ buffer[bufptr]!=0x000a);
+ if (bufptr>0) {
+ buffer[++bufptr]=0;
+ output_paragraph(buffer);
+ }
+ }
+ return 0;
+}
+/**********************************************************************/
+/* Reads file from MS-Word 97 and above file. Takes in account strange*
+ * situation that unicode and non-unicode 256-byte blocks could be *
+ * intermixed in word file *
+ * *
+ * Parameters: *
+ * *
+ * f - file to read *
+ * offset - position of the character inside file (to determine *
+ * possible block boundaries *
+ **********************************************************************/
+int get_word8_char(FILE *f,long *offset,long fileend) {
+ int count,i,u;
+ char c;
+ if ((i=(*offset)%256) ==0) {
+ count=catdoc_read(read_buf,1,256,f);
+ memset(read_buf+count,0,256-count);
+ buf_is_unicode=0;
+ if (*offset+(long)count>fileend) {
+ count=fileend-*offset;
+ }
+ while (i<count) {
+ c=read_buf[i++];
+ if ((c==0x20|| c==0x0D||ispunct(c))&&i<count&&read_buf[i]==0) {
+ buf_is_unicode=1;
+ break;
+ }
+ i++;
+ }
+ i=0;
+ }
+ if (buf_is_unicode) {
+ u=read_buf[i] | read_buf[i+1]<<8;
+ (*offset)+=2;
+ } else {
+ u=to_unicode(source_charset,read_buf[i]);
+ (*offset)++;
+ }
+ return u;
+}
+
+
output_paragraph(buffer);
*bufptr=-1;
}
projects / oss / catdoc.git / commitdiff