/* Newsgroups: alt.sources From: cloister@milton.u.washington.edu (cloister bell) Subject: ps2txt version 2.1 Summary: postscript to ascii converter. Keywords: postscript, ascii, convert Followups-To: alt.sources.d Organization: University of Washington Date: Sun, 23 Feb 1992 01:47:15 GMT Archive-Name: ps2txt.c due to popular request, here is my new version of this utility. This version supports regular postscript files via Iqbal Qazi's original algorithm, and files generated by dvitps via my algorithm and the -dvi option. If you're not sure whether or not to use -dvi, try it both ways; the difference is marked. improvements over the original: -- you no longer need to use the filename "-" for stdin. stdin is the default. -- -dvi option added -- cleaned up the code and control structures a *lot* -- comments! what a concept. the following may be compiled with cc. no special options are needed that i know of. -o is nice, however... ------------------------------ cut here ------------------------------ Jason Black, Feb 22 1992 Input can come from stdin, from '-' or from a file named on the command line: Flags: -dvi for use with dvitps PostScript files. Usage: ps2txt [-dvi] [-] [input_file.ps] ps2txt.c extracts strings from a PostScript file. This version has been modified to correctly deal with the oddities of PostScript files generated by dvi-to-PostScript converters, so if you keep this and the original program around, you might want to rename one of them. VERSION: 1.1 Fixed bug dealing with comments. 1.2 By popular demand: put spaces between strings. 2.0 Fixed most problems of extraneous spaces and newlines between strings. added support for the ligatures ff, fi, fl, ffi, & ffl. re-designed the control structures, and otherwise cleaned up the code. 2.1 Put Qazi's original algorithm back in, and added -dvi flag to use my more specific algorithm. Also by popular demand. Re-wrote the command line parsing yet again. History: Modified Qazi's program on Feb. 18 1992 so that it could do dvitps files well. Posted to alt.sources. Got feedback requesting support for regular PostScript files as well. Retrieved Qazi's original source code, and put it back in on Feb. 22 1992. While the original program concept and source code is from Iqbal Qazi, this version has had enough modifications that I am claiming it as my own. Qazi's sections are well marked if you want to see them. Comments/suggestions to cloister@u.washington.edu 26 January 2000 Kang-Jin Lee * small changes to placate compiler. */ #include #define Putc(x) putchar(x); /* makes some lines not exceed 80 chars. */ #define TRUE 1 #define FALSE 0 void dviparse(); /* function prototypes */ void psparse(); int main(argc, argv) int argc; char *argv[]; { int i, /* everybody's favorite counter */ known_flag, /* used during command line parsing */ dvi_file = FALSE; /* true if -dvi option found on command line */ FILE *file, *source; /* input stream */ source = stdin; /* default input source */ for(i=1; i = ' ' in parens */ case '\\' : switch(ch=fgetc(source)) { case '(' : case ')' : Putc(ch); break; /* from \? */ case 't' : Putc('\t'); break; /* write a tab */ case 'n' : Putc('\n'); break; /* write a */ case '\\': Putc('"'); break; /* open quotes */ case '0' : switch(ch=fgetc(source)) { case '1': switch(ch=fgetc(source)) { case '3' : fputs("ff",stdout); break; /* from \01? */ case '4' : fputs("fi",stdout); break; case '5' : fputs("fl",stdout); break; case '6' : fputs("ffi",stdout); break; case '7' : fputs("ffl",stdout); break; default: fputs("\\01",stdout); Putc(ch); /* unknown code */ } break; /* from \0? */ default: fputs("\\0",stdout); Putc(ch); /* unknown code */ } break; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : Putc('\\'); /* unknown code */ default: Putc(ch); } break; /* from original switch */ default: Putc(ch); } else /* not in paren's */ switch(ch) { case '%' : fgets(junk, 80, source); break; /* toss out comments */ case '\n' : break; /* skip 's outside of parens */ case '-' : if (b_flag) { b_flag = 0; /* because now prev. char != ')' */ b_space = 0; /* but the number after ')' is negative, so no */ /* space in case the letter code is 'b'. */ /* the default is b_space = 1 */ } break; case '(' : in_paren++; /* back in parens again */ switch(prev_ch) /* check prev char to see if we need a space */ { case 'l' : case 'm' : case 'n' : case 'o' : /* not for these 8 */ case 'q' : case 'r' : case 's' : case 't' : break; case 'y' : Putc('\n'); break; /* need a newline */ case 'b' : if (b_space) Putc(' '); break; /* 'b' w/ a + number */ case 'a' : case 'c' : case 'd' : case 'e' : case 'f' : case 'g' : case 'h' : case 'i' : case 'j' : case 'k' : case 'x' : Putc(' '); break; default: break; } b_space = 1; /* reset flag to default for next time */ break; default: b_flag = 0; break; /* junk stuff not in parens */ } prev_ch=ch; /* remember this char in case !in_paren and next ch = '(' */ } } void psparse(source) /* Iqbal's original uncommented program, unmodified */ FILE *source; /* except for stripping i/o stuff off the top, etc: */ { char *str; char junk[80]; int ch, para=0, last=0; while ((ch=fgetc(source)) != EOF) { switch (ch) { case '%' : if (para==0) fgets(junk, 80, source); else putchar(ch); case '\n' : if (last==1) { puts(""); last=0; } break; case '(' : if (para++>0) putchar(ch); break; case ')' : if (para-->1) putchar(ch); else putchar(' '); last=1; break; case '\\' : if (para>0) switch(ch=fgetc(source)) { case '(' : case ')' : putchar(ch); break; case 't' : putchar('\t'); break; case 'n' : putchar('\n'); break; case '\\': putchar('\\'); break; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : putchar('\\'); default: putchar(ch); break; } break; default: if (para>0) putchar(ch); } } }