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- /*----------------------------------------------------------------------*
- | File: PF.c (short for PRINTFILES.c) - V1.16 - MLO 910916 |
- +----------------------------------------------------------------------+
- | This file is an utility for the HP DeskJet 500 printer on the Amiga; |
- | has been written for the SAS C-Compiler v5.10, and structured to be |
- | easily modified for different computers (e.g. IBM PC's). Its purpose |
- | is to send the correct escape sequence to direct the printer to use |
- | an internal font, then to print one or more files; the printer is |
- | reset to the default, UNLESS no file names are given: in this case |
- | the printer is left initialised as it was. I have foreseen also a |
- | special printing mode: 2 pages (55 lines and 80 columns each) on the |
- | same sheet, in landscape mode with a small font and a nice border. |
- +----------------------------------------------------------------------+
- | Usage: PF [switches] [file [file [file ... ] ] ] ; from CLI only. |
- | Switches: -l : landscape (default is portrait); |
- | -i : italic (default is roman); |
- | -bN : insert N blanks at the beginning of every line; |
- | -aN : tAb stops every N characters (default: 8); |
- | -g : Letter-Gothic font (default is Courier); |
- | -t : Times font (default is Courier); |
- | -s : small pitch (Courier: 16.67 cpi; Let.Got.: 24cpi); |
- | -x : extra-small pitch (20 cpi - for Courier only); |
- | -8 : 8 lpi (default is 6 lpi); |
- | -6 : 6 points high fonts (default is 12 points fonts); |
- | -d : draft quality (default is letter quality); |
- | -2 : special mode (2 pages every side). |
- | The s/x/l switches are ignored when incompatible with selected font; |
- | the "normal" pitch is 10 cpi for Courier, and 12 for Letter-Gothic |
- | (Times is a proportional font). The switches can be specified eg. as |
- | -g -8 -s or as -g8s (for Letter-Gothic font, 8 lpi and 24 cpi); only |
- | the -bN/-aN switches must be alone, or the last ones in a sequence. |
- | All switches different from -d/-a will be ignored if -2 is selected. |
- | All non-printable characters (00 to 037 and 0137) are deleted. |
- +----------------------------------------------------------------------+
- | Giving PF with invalid switches (or PF without any argument) a short |
- | help screen will be printed on stdout. |
- +---------------------------------------------------------+------------*
- | Author: Maurizio Loreti, aka MLO or I3NOO. |
- | Address: University of Padova - Department of Physics |
- | Via F. Marzolo, 8 - 35131 PADOVA - Italy |
- | Phone: (39)(49) 844-313 FAX: (39)(49) 844-245 |
- | E-Mail: LORETI at IPDINFN (BITNET); or VAXFPD::LORETI |
- | (DECnet) - VAXFPD is node 38.257 i.e. 39169; or |
- | LORETI@PADOVA.INFN.IT (INTERNET). |
- | Home: Via G. Donizetti 6 - 35010 CADONEGHE (PD) - Italy |
- *---------------------------------------------------------*/
-
- char VersionTag[] = "\0$VER: PF1 v1.16 - MLO 910916";
-
- #include "pf1.h"
-
- /**
- | Remove SAS built-in Control-C handling
- **/
-
- int CXBRK(void) { return 0; }
- int chkabort(void) { return 0; }
-
- /**
- | ANSI prototypes
- **/
-
- void CheckDefaults(void);
- void Cleanup(int code);
- void ClearPageBuffer(void);
- void ClearThisPage(void);
- void Detab(char *buffer, int length);
- void DoubleLine(char *left, char *right);
- void EjectPage(void);
- void ExitProgram(void);
- void FlushBuffers(void);
- void Header(int type);
- void InitPrinter(void);
- void InterLine(void);
- void OutLine(void);
- void ResetPrinter(void);
- char **Setup(int *pArgc, char **argv);
- void Syntax(void);
-
- /**
- | Main program: the approach is strictly top-down, and
- | the meaning should be clear also without comments.
- **/
-
- void main(
- int argc,
- char **argv
- ){
- int bufferLength = LINE_LENGTH;
-
- argv = Setup(&argc, argv);
- InitPrinter();
- bufferLength -= nBlanks;
-
- for (; argc--; argv++) {
- if ((fp = fopen(*argv, "r")) == NULL) {
- printf("Can't open input file %s ...\n", *argv);
- continue;
- }
- printf("Printing file %s ... ", *argv);
- while (fgets(Buffer, bufferLength, fp) != NULL) {
- Detab(Buffer, bufferLength);
- OutLine();
- }
- printf("done.\n");
- fclose(fp);
- fp = NULL;
- ClearThisPage();
- }
- FlushBuffers();
- ExitProgram();
- }
-
- void CheckDefaults(void)
- {
-
- /**
- | As the name says, this procedure checks for incompatible options
- | selected: e.g. the only Landscape fonts are Courier, so to give
- | the command PF -TL ... is an error. I suppose that the internal
- | fonts only are present; otherwise this procedure should be modified.
- | Checks:
- | -> Letter-Gothic: 12 or 24 cpi; portrait only.
- | -> Times: proportional; portrait only.
- | -> Courier: 10 or 20 cpi; plus 16.67 cpi for Courier Roman (not
- | allowed for Courier Italic).
- | -> Landscape/Italic not allowed.
- | -> The number of extra spaces inserted before every line must be
- | not negative.
- **/
-
- switch (Font) {
- case GOTHIC:
- Orientation = PORTRAIT;
- if (Pitch == P10CPI) {
- Pitch = P12CPI;
- } else {
- Pitch = P24CPI;
- }
- break;
- case TIMES:
- Orientation = PORTRAIT;
- Pitch = PROPORTIONAL;
- break;
- case COURIER:
- if (Pitch == P16_67CPI && Style == ITALIC) {
- Pitch = P20CPI;
- }
- break;
- }
-
- if (Orientation == LANDSCAPE) {
- Style = ROMAN;
- }
-
- if (nBlanks < 0) {
- nBlanks = 0;
- } else {
- if (nBlanks) {
- Buffer = inBuffer + nBlanks;
- memset(inBuffer, BLANK, nBlanks);
- }
- }
- }
-
- void Cleanup(
- int code
- ){
-
- /**
- | Releases all system resources (closes opened files
- | and frees heap memory - if any). "code" is the
- | status to be returned to the operating system.
- **/
-
- if (fp != NULL) fclose(fp);
- if (prt != NULL) fclose(prt);
- if (pPB != NULL) {
- if (pPB->line[0] != NULL) free(pPB->line[0]);
- free(pPB);
- }
- exit(code);
- }
-
- void ClearPageBuffer(void)
- {
-
- /**
- | This routine resets the content of the page buffer
- | used in the 2-pages-on-a-sheet mode to all-blank
- | lines, and the pointer to the next line to be filled
- | to the first line in the buffer.
- **/
-
- memset(pPB->line[0], BLANK, BUFFER_SIZE);
- ThisLine = 0;
- }
-
- void ClearThisPage(void)
- {
-
- /**
- | Called every end of file: in the normal mode, ejects a page;
- | in the 2-pages mode, switches from the left to the right page
- | (if there is at least a line on this page), and leaving the
- | remainder of the lines on the current page all blank.
- **/
-
- switch (PageMode) {
- case SINGLE_PAGE:
- EjectPage();
- break;
- case LEFT_PAGE:
- if (ThisLine) {
- Header(UP);
- PageMode = RIGHT_PAGE;
- ThisLine = 0;
- }
- break;
- case RIGHT_PAGE:
- if (ThisLine) {
- FlushBuffers();
- PageMode = LEFT_PAGE;
- ClearPageBuffer();
- }
- break;
- }
- }
-
- void Detab(
- char *buffer,
- int length
- ){
-
- /**
- | Translates TAB stops to blanks: TAB stops are assumed at columns
- | (1 + N * nTabs), with N = 1, 2, ... ; the default value of nTabs
- | is 8, and can be changed using the command switches. In the same
- | time non-printable characters are deleted from the input string:
- | for non-printable I mean characters from 00 to 037 and 0177, assuming
- | that characters over 0177 have special meaning different for every
- | computer and that nothing can be said about them.
- | The buffer can hold "length" characters only.
- **/
-
- char temp[LINE_LENGTH]; /* Internal buffer */
- char *pC1, *pC2; /* Temporary pointers */
- char *pEnd; /* Pointer to the buffer end */
-
- strcpy(temp, buffer);
- pEnd = (buffer + length - 1);
- for (pC1 = temp, pC2 = buffer; *pC1 && pC2 < pEnd; pC1++) {
- if (*pC1 == TAB) {
- do {
- *pC2++ = BLANK;
- } while (((pC2 - buffer) % nTabs) && (pC2 < pEnd));
- } else {
- if (isspace(*pC1) || !iscntrl(*pC1)) {
- *pC2++ = *pC1;
- }
- }
- }
- *pC2 = NIHIL;
- }
-
- void DoubleLine(
- char *left,
- char *right
- ){
-
- /**
- | Prints a line in the 2-pages mode, the two parameters being
- | pointers to the left-page line and the right-page line; a
- | blank line is printed if the corresponding pointer is NULL.
- **/
-
- if (left == NULL) {
- fprintf(prt, "%c%*c%c%*c",
- V_LINE, TOTAL_LENGTH, BLANK, V_LINE, SEP_LENGTH, BLANK);
- } else {
- fprintf(prt, "%c%*c%.*s%*c%c%*c",
- V_LINE, SIDE_LENGTH, BLANK, OUTPUT_LENGTH, left,
- SIDE_LENGTH, BLANK, V_LINE, SEP_LENGTH, BLANK);
- }
-
- if (right == NULL) {
- fprintf(prt, "%c%*c%c\r",
- V_LINE, TOTAL_LENGTH, BLANK, V_LINE);
- } else {
- fprintf(prt, "%c%*c%.*s%*c%c\r",
- V_LINE, SIDE_LENGTH, BLANK, OUTPUT_LENGTH, right,
- SIDE_LENGTH, BLANK, V_LINE);
- }
- }
-
- void EjectPage(void)
- {
- fprintf(prt, "%c", FORM_FEED);
- }
-
- void ExitProgram(void)
- {
- ResetPrinter();
- puts("Good Bye!");
- Cleanup(SYS_NORMAL_CODE);
- }
-
- void FlushBuffers(void)
- {
-
- /**
- | In the 2-pages mode, prints the current page as
- | it is (non filled lines will be left blank).
- **/
-
- int i;
-
- switch (PageMode) {
- case LEFT_PAGE:
- if (!ThisLine) return;
- for (i=0; i<ThisLine; i++) {
- DoubleLine(pPB->line[i], NULL);
- InterLine();
- }
- for (i=ThisLine; i<PAGE_LENGTH; i++) {
- DoubleLine(NULL, NULL);
- InterLine();
- }
- Header(DOWN);
- break;
- case RIGHT_PAGE:
- for (i=ThisLine; i<PAGE_LENGTH; i++) {
- DoubleLine(pPB->line[i], NULL);
- InterLine();
- }
- Header(DOWN);
- break;
- }
- }
-
- void Header(
- int type
- ){
-
- /**
- | Prints the top or the down header in the 2-pages mode:
- | a solid line separated from the text by a blank line.
- **/
-
- memset(Buffer, H_LINE, TOTAL_LENGTH);
-
- if (type == UP) {
- fprintf(prt, "%c%.*s%c%*c%c%.*s%c\r",
- NW, TOTAL_LENGTH, Buffer, NE, SEP_LENGTH,
- BLANK, NW, TOTAL_LENGTH, Buffer, NE);
- InterLine();
- }
- DoubleLine(NULL, NULL);
- InterLine();
- if (type == DOWN) {
- fprintf(prt, "%c%.*s%c%*c%c%.*s%c\r",
- SW, TOTAL_LENGTH, Buffer, SE, SEP_LENGTH,
- BLANK, SW, TOTAL_LENGTH, Buffer, SE);
- EjectPage();
- }
- }
-
- void InitPrinter(void)
- {
-
- /**
- | Printer initialisation: see the HP DeskJet 500
- | user's manual for explanation...
- **/
-
- char *PitchID[] = {"10", "12", "16.67", "20", "24"};
-
- if ((prt = fopen(OUTPUT_DEVICE, "w")) == NULL) {
- printf("Can't access the output port ...\n");
- Cleanup(SYS_ABORT_CODE);
- }
- fprintf(prt, "%c&l%do%dD%c(10U%c(s0u", ESC, Orientation, Lpi, ESC, ESC);
- if (Pitch == PROPORTIONAL) {
- fprintf(prt, "1p");
- } else {
- fprintf(prt, "0p%sh", PitchID[Pitch]);
- }
- fprintf(prt, "%dv%ds0b%dt%dQ", Height, Style, Font, Quality);
- }
-
- void InterLine(void)
- {
-
- /**
- | Writing at 8 lines per inch and 6 points high characters,
- | the double page border is not continuous. This procedure
- | skips half line, draws the border, then skips another half
- | line down to the correct placement for next printing.
- **/
-
- fprintf(prt, "%c=", ESC);
- DoubleLine(NULL, NULL);
- fprintf(prt, "%c=", ESC);
- }
-
- void OutLine(void)
- {
-
- /**
- | Outputs a line to the printer.
- | In the normal mode, the line is sent to the port after storing a
- | carriage return and a line feed after the text, and leaving to the
- | printer to deal with form feeds and long lines.
- | In the 2-pages mode, the line is truncated to a fixed length: if
- | we are in the left page, the line is stored in the internal buffer;
- | otherwise, it is printed together with the corresponding left line.
- **/
-
- int length, n;
- static char *EndOfLine = "\r\n";
-
- length = strlen(inBuffer) - 1;
-
- switch (PageMode) {
- case SINGLE_PAGE:
- memcpy(inBuffer+length, EndOfLine, 3);
- fputs(inBuffer, prt);
- break;
- case LEFT_PAGE:
- if (length > OUTPUT_LENGTH) {
- length = OUTPUT_LENGTH;
- }
- memcpy(pPB->line[ThisLine], Buffer, length);
- if (++ThisLine >= PAGE_LENGTH) {
- Header(UP);
- PageMode = RIGHT_PAGE;
- ThisLine = 0;
- }
- break;
- case RIGHT_PAGE:
- if ((n = OUTPUT_LENGTH - length) > 0) {
- memset(Buffer+length, BLANK, n);
- }
- DoubleLine(pPB->line[ThisLine], Buffer);
- InterLine();
- if (++ThisLine >= PAGE_LENGTH) {
- Header(DOWN);
- PageMode = LEFT_PAGE;
- ClearPageBuffer();
- }
- break;
- }
- }
-
- void ResetPrinter(void)
- {
- fprintf(prt, "%cE", ESC);
- }
-
- char **Setup(
- int *pArgc,
- char **argv
- ){
-
- /**
- | We look into the command line for switches; the function value is
- | argv when pointing to the first non-switch argument (i.e. the first
- | file name) - if any. If the 2-page mode was requested, the procedure
- | allocates from the heap memory the internal buffer for the left-page
- | lines, and a service buffer filled with the pointers to the first
- | character of every line in the left page; this calling malloc(),
- | to make this program more portable.
- **/
-
- int i;
- char c;
-
- printf("\n\t\"PF\" - v%.2f - MLO %ld\n\n", VERSION, LAST_CHANGE);
-
- /**
- | Error if called from the Workbench, or if called
- | from the CLI but without any argument.
- **/
-
- if (*pArgc == 0) {
- printf("This program must be called from CLI;\n"
- "type PF for a short help screen.\n\n"
- "Press <CR> to exit ... ");
- while ((i = getchar()) != NEWLINE && i != EOF) { }
- Cleanup(SYS_ABORT_CODE);
- }
- if (*pArgc < 2) Syntax();
-
- while (--(*pArgc)) {
- if ((*++argv)[0] == '-') {
-
- /**
- | A switch ...
- **/
-
- for (i=1; (c = (*argv)[i]); i++) {
- switch (c) {
- case 'l': case 'L':
- Orientation = LANDSCAPE;
- break;
- case 'i': case 'I':
- Style = ITALIC;
- break;
- case 'b': case 'B':
- nBlanks = atoi(*argv + ++i);
- goto NextSwitch;
- case 'a': case 'A':
- nTabs = atoi(*argv + ++i);
- goto NextSwitch;
- case 'g': case 'G':
- Font = GOTHIC;
- break;
- case 't': case 'T':
- Font = TIMES;
- break;
- case 's': case 'S':
- Pitch = P16_67CPI;
- break;
- case 'x': case 'X':
- Pitch = P20CPI;
- break;
- case '6':
- Height = 6;
- break;
- case '8':
- Lpi = 8;
- break;
- case 'd': case 'D':
- Quality = DRAFT;
- break;
- case '2':
- PageMode = LEFT_PAGE;
- break;
- default:
- Syntax();
- }
- }
- } else {
-
- /**
- | The first file name; perform some
- | intialisations, then return to the caller.
- **/
-
- if (PageMode != SINGLE_PAGE) {
- if ((pPB = malloc(sizeof(PageBuffer))) == NULL) {
- printf("Can't allocate the Page Buffer ...\n");
- Cleanup(SYS_ABORT_CODE);
- }
- if ((pPB->line[0] = malloc(BUFFER_SIZE)) == NULL) {
- printf("Can't allocate the Line Buffer ...\n");
- Cleanup(SYS_ABORT_CODE);
- }
- for (i=1; i<PAGE_LENGTH; i++) {
- pPB->line[i] = pPB->line[0] + (i * OUTPUT_LENGTH);
- }
-
- Orientation = LANDSCAPE;
- Font = COURIER;
- Style = ROMAN;
- Pitch = P16_67CPI;
- Height = 6;
- Lpi = 8;
- nBlanks = 0;
- ClearPageBuffer();
- } else {
- CheckDefaults();
- }
- return argv;
- }
-
- NextSwitch: ;
- }
-
- /**
- | Here if no file name given; initialise
- | the printer, then exit without reset.
- **/
-
- CheckDefaults();
- InitPrinter();
- puts("Printer initialised ... Good bye!");
- Cleanup(SYS_NORMAL_CODE);
- }
-
- void Syntax(void)
- {
-
- /**
- | A syntax error has been detected in the command
- | line; a short help is output to the screen.
- **/
-
- puts("Usage: PF [switches] [file [file [file ... ] ] ]");
- puts("Switches: -l : Landscape (default is Portrait);");
- puts(" -i : Italic (default is Roman);");
- puts(" -bN : insert N Blanks before every output line;");
- puts(" -aN : tAb stops every N characters (default: 8);");
- puts(" -g : Letter-Gothic font (default is Courier);");
- puts(" -t : Times font (default is Courier);");
- puts(" -s : Small pitch (Courier: 16.67 cpi; "
- "Letter-Gothic: 24 cpi);");
- puts(" -x : eXtra-small pitch (20 cpi - for Courier only);");
- puts(" -8 : 8 lines per inch (default: 6 lpi);");
- puts(" -6 : 6 points high font (default: 12 points);");
- puts(" -d : Draft quality (default is Letter quality);");
- puts(" -2 : special mode (2 pages on every sheet of paper).\n");
- puts("The s/x/l switches are ignored when incompatible with selected font.");
- puts("The default pitch is 10 cpi for Courier and 12 cpi for Letter-Gothic");
- puts("(Times is a proportional font); all switches different from -d and");
- puts("-a will be ignored, if -2 is selected. The switches on the command");
- puts("line can be grouped: e.g. -c -8 -s is the same as -c8s; only -bN and");
- puts("-aN, if present, must be specified alone or the last in a group. The");
- puts("printer is reset to its default, at the completion - UNLESS if no");
- puts("file names are given.\n");
-
- Cleanup(SYS_NORMAL_CODE);
- }
-