+++ /dev/null
-/*
- * main.c - a commandline frontend for the barcode library
- *
- * Copyright (c) 1999 Michele Comitini (mcm@glisco.it)
- * Copyright (c) 1999 Alessandro Rubini (rubini@gnu.org)
- * Copyright (c) 1999 Prosa Srl. (prosa@prosa.it)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-#include "cmdline.h"
-#include "barcode.h"
-
-#ifndef NO_LIBPAPER
-#include <paper.h>
-#endif
-
-/*
- * Most of this file deals with command line options, by exploiting
- * the cmdline.[ch] engine to offer defaults via environment variables
- * and handling functions for complex options.
- *
- * In order to offer a friendly interface (for those who feel the
- * cmdline *is* friendly, like me), we have to convert names to enums...
- */
-
-struct {
- char *name;
- int type;
-} encode_tab[] = {
- {"ean", BARCODE_EAN},
- {"ean13", BARCODE_EAN},
- {"ean-13", BARCODE_EAN},
- {"ean8", BARCODE_EAN},
- {"ean-8", BARCODE_EAN},
- {"upc", BARCODE_UPC},
- {"upc-a", BARCODE_UPC},
- {"upc-e", BARCODE_UPC},
- {"isbn", BARCODE_ISBN},
- {"39", BARCODE_39},
- {"code39", BARCODE_39},
- {"128c", BARCODE_128C},
- {"code128c", BARCODE_128C},
- {"128b", BARCODE_128B},
- {"code128b", BARCODE_128B},
- {"128", BARCODE_128},
- {"code128", BARCODE_128},
- {"128raw", BARCODE_128RAW},
- {"i25", BARCODE_I25},
- {"interleaved 2 of 5", BARCODE_I25},
- {"cbr", BARCODE_CBR},
- {"codabar", BARCODE_CBR},
- {"msi", BARCODE_MSI},
- {"pls", BARCODE_PLS},
- {"plessey", BARCODE_PLS},
- {"code93", BARCODE_93},
- {"93", BARCODE_93},
-
- {NULL, 0}
-};
-
-/*
- * Get encoding type from string rapresentation.
- * Returns -1 on error.
- */
-#ifndef HAVE_STRCASECMP /* some libs (windows, for example) have stricmp */
-# define strcasecmp stricmp
-#endif
-
-int encode_id(char *encode_name)
-{
- int i;
- for (i = 0; encode_tab[i].name; i++)
- if (!strcasecmp(encode_tab[i].name, encode_name))
- return encode_tab[i].type;
- return -1;
-}
-
-int list_encodes(FILE *f) /* used in the help message */
-{
- int prev = -1;
- int i;
-
- fprintf(f, "Known encodings are (synonyms appear on the same line):");
- for (i = 0; encode_tab[i].name; i++) {
- if (encode_tab[i].type != prev)
- fprintf(f, "\n\t");
- else
- fprintf(f, ", ");
- fprintf(f, "\"%s\"", encode_tab[i].name);
- prev = encode_tab[i].type;
- }
- fprintf(f, "\n");
- return 0;
-}
-
-
-/*
- * Variables to hold cmdline arguments (or defaults)
- */
-
-char *ifilename, *ofilename;
-int encoding_type; /* filled by get_encoding() */
-int code_width, code_height; /* "-g" for standalone codes */
-int lines, columns; /* "-t" for tables */
-int xmargin0, ymargin0; /* both for "-g" and "-t" */
-int xmargin1, ymargin1; /* same, but right and top */
-int ximargin, yimargin; /* "-m": internal margins */
-int eps, pcl, ps, noascii, nochecksum; /* boolean flags */
-int page_wid, page_hei; /* page size in points */
-char *page_name; /* name of the media */
-double unit = 1.0; /* unit specification */
-
-char *prgname; /* used to print error msgs, initialized to argv[0] by main */
-
-/*
- * Functions to handle command line arguments
- */
-
-struct encode_item {
- char *string;
- struct encode_item *next;
-} *list_head, *list_tail;
-
-/* each "-b" option adds a string to the input pool allocating its space */
-int get_input_string(void *arg)
-{
- struct encode_item *item = malloc(sizeof(*item));
- if (!item) {
- fprintf(stderr, "%s: malloc: %s\n", prgname, strerror(errno));
- return -2;
- }
- item->string = strdup(arg);
- if (!list_head) {
- list_head = list_tail = item;
- } else {
- list_tail->next = item;
- list_tail = item;
- }
- item->next = NULL;
- return 0;
-}
-
-/* and this function extracts strings from the pool */
-unsigned char *retrieve_input_string(FILE *ifile)
-{
- char *string;
- static char fileline[128];
-
- struct encode_item *item = list_head;
- if (list_tail) { /* this means at least one "-b" was specified */
- if (!item)
- return NULL; /* the list is empty */
- string = item->string;
- list_head = item->next;
- free(item);
- return string;
- }
-
- /* else, read from the file */
- if (!fgets(fileline, 128, ifile))
- return NULL;
- if (fileline[strlen(fileline)-1]=='\n')
- fileline[strlen(fileline)-1]= '\0';
- return strdup(fileline);
-}
-
-/* accept a unit specification */
-int get_unit(void *arg)
-{
- static struct {
- char *str;
- double unit;
- } *ptr, unittab[] = {
- {"pt", 1.0},
- {"in", 72.0},
- {"cm", 72.0/2.54},
- {"mm", 72.0/25.4},
- {NULL, 0.0}
- };
-
- for (ptr = unittab; ptr->str && strcmp((char *)arg, ptr->str); ptr++)
- ;
- unit = ptr->unit;
- if (ptr->str) return 0;
-
- fprintf(stderr, "%s: incorrect unit \"%s\" (use one of",
- prgname, (char *)arg);
- for (ptr = unittab; ptr->str; ptr++)
- fprintf(stderr, " \"%s\"", ptr->str);
- fprintf(stderr, ")\n");
- return -2;
-}
-
-/* convert an encoding name to an encoding integer code */
-int get_encoding(void *arg)
-{
- encoding_type = encode_id((char *)arg);
- if (encoding_type >=0) return 0;
- fprintf(stderr, "%s: wrong encoding \"%s\"\n", prgname,
- (char *)arg);
- return -2; /* error, no help */
-}
-
-/* convert a geometry specification */
-int get_geometry(void *arg)
-{
- double w = 0.0, h = 0.0;
- double x = 0.0, y = 0.0;
- int n;
-
- if (((char *)arg)[0]=='+') {
- n = sscanf((char *)arg, "+%lf+%lf%s", &x, &y, (char *)arg);
- } else {
- n = sscanf((char *)arg, "%lfx%lf+%lf+%lf%s", &w, &h, &x, &y,
- (char *)arg);
- }
- if (n!=4 && n!=2) {
- fprintf(stderr, "%s: wrong geometry \"%s\"\n", prgname, (char *)arg);
- return -2;
- }
- /* convert to points */
- code_width = w * unit;
- code_height = h * unit;
- xmargin0 = x * unit;
- ymargin0 = y * unit;
- return 0;
-}
-
-/* convert a geometry specification */
-int get_table(void *arg)
-{
- double x0 = 0.0, y0 = 0.0, x1 = 0.0, y1 = 0.0;
- int n;
-
- n = sscanf((char *)arg, "%dx%d+%lf+%lf-%lf-%lf",
- &columns, &lines, &x0, &y0, &x1, &y1);
-
- if (n==1 || n==3) { /* error: 2, 4, 5, 6 are fine */
- fprintf(stderr, "%s: wrong table specification \"%s\"\n", prgname,
- (char *)arg);
- return -2;
- }
- if (n < 6) y1 = y0; /* symmetric by default */
- if (n < 5) x1 = x0;
-
- /* convert and return */
- xmargin0 = x0 * unit;
- ymargin0 = y0 * unit;
- xmargin1 = x1 * unit;
- ymargin1 = y1 * unit;
- return 0;
-}
-
-/* convert an internal margin specification */
-int get_margin(void *arg)
-{
- char separator;
- double x,y;
- int n;
-
- /* accept one number or two, separated by any char */
- n = sscanf((char *)arg, "%lf%c%lf", &x, &separator, &y);
-
- if (n==1) {
- n=3; y = x;
- }
- if (n==3) {
- ximargin = x * unit;
- yimargin = y * unit;
- return 0;
- }
- fprintf(stderr, "%s: wrong margin specification \"%s\"\n", prgname,
- (char *)arg);
- return -2;
- return 0;
-}
-
-/* convert a page geometry specification */
-int get_page_geometry(void *arg)
-{
- int n;
- double dpw, dph; /* page width, height in mm or inches */
- static char tmpstr[20];
- page_name = arg; /* if undecipherable, we won't run the program :) */
- /*
- * try to decode a "mm" string (eg. "210mmx297mm" or "210x297mm")
- */
- n = sscanf((char *)arg, "%lfmmx%lf", &dpw, &dph);
- if (n != 2 && strlen(arg)<20) {
- n = sscanf((char *)arg, "%lfx%lf%s", &dpw, &dph, tmpstr);
- if (n == 3 && !strcmp(tmpstr, "mm")) {
- /* Ok, convert to points: 1in is 25.4mm, 1in is also 72p */
- page_wid = (int)(dpw / 25.4 * 72.0 + 0.5);
- page_hei = (int)(dph / 25.4 * 72.0 + 0.5);
- return 0;
- }
- }
-
- /*
- * try to decode an "in" string (eg. "8.5inx11in" or "8.5x11in")
- */
- n = sscanf((char *)arg, "%lfinx%lf", &dpw, &dph);
- if (n != 2 && strlen(arg)<20) {
- n = sscanf((char *)arg, "%lfx%lf%s", &dpw, &dph, tmpstr);
- if (n == 3 && !strcmp(tmpstr, "in")) {
- page_wid = (int)(dpw * 72.0 + 0.5); /* round to points */
- page_hei = (int)(dph * 72.0 + 0.5);
- return 0;
- }
- }
-
- /*
- * try to decode a numeric specification
- */
- n = sscanf((char *)arg, "%lfx%lf", &dpw, &dph);
- if (n == 2) {
- page_wid = dpw * unit;
- page_hei = dph * unit;
- if (unit != 1.0) { /* rebuild the page name */
- page_name = malloc(32); /* big, to avoid snprintf, missing on HP */
- if (page_name)
- sprintf(page_name, "%dx%d\n", page_wid, page_hei);
- }
- return 0;
- }
-
-#ifndef NO_LIBPAPER
- /*
- * try to use libpaper, since it is available
- */
- {
- const struct paper* paptr;
-
- paperinit();
- paptr = paperinfo(arg);
- if (!paptr) { /* unknown name */
- paperdone();
- return -1;
- }
- page_wid = (int)(paperpswidth(paptr) + 0.5);
- page_hei = (int)(paperpsheight(paptr) + 0.5);
- paperdone();
- return 0;
- }
-#endif
- /* If we got here, the argument is undecipherable: fail */
- fprintf(stderr, "%s: wrong page size specification \"%s\"\n", prgname,
- (char *)arg);
- return -2;
-}
-
-/*
- * The table of possible arguments
- */
-struct commandline option_table[] = {
- {'i', CMDLINE_S, &ifilename, NULL, NULL, NULL,
- "input file (strings to encode), default is stdin"},
- {'o', CMDLINE_S, &ofilename, NULL, NULL, NULL,
- "output file, default is stdout"},
- {'b', CMDLINE_S, NULL, get_input_string, NULL, NULL,
- "string to encode (use input file if missing)"},
- {'e', CMDLINE_S, NULL, get_encoding, "BARCODE_ENCODING", NULL,
- "encoding type (default is best fit for first string)"},
- {'u', CMDLINE_S, NULL, get_unit, "BARCODE_UNIT", NULL,
- "unit (\"mm\", \"in\", ...) used to decode -g, -t, -p"},
- {'g', CMDLINE_S, NULL, get_geometry, "BARCODE_GEOMETRY", NULL,
- "geometry on the page: [<wid>x<hei>][+<margin>+<margin>]"},
- {'t', CMDLINE_S, NULL, get_table, "BARCODE_TABLE", NULL,
- "table geometry: <cols>x<lines>[+<margin>+<margin>]"},
- {'m', CMDLINE_S, NULL, get_margin, "BARCODE_MARGIN", "10",
- "internal margin for each item in a table: <xm>[,<ym>]"},
- {'n', CMDLINE_NONE, &noascii, NULL, NULL, NULL,
- "\"numeric\": avoid printing text along with the bars"},
- {'c', CMDLINE_NONE, &nochecksum, NULL, NULL, NULL,
- "no Checksum character, if the chosen encoding allows it"},
- {'E', CMDLINE_NONE, &eps, NULL, NULL, NULL,
- "print one code as eps file (default: multi-page ps)"},
- {'P', CMDLINE_NONE, &pcl, NULL, NULL, NULL,
- "create PCL output instead of postscript"},
- {'p', CMDLINE_S, NULL, get_page_geometry, NULL, NULL,
- "page size (refer to the man page)"},
- {0,}
-};
-
-#ifdef NO_STRERROR
-/*
- * A strerror replacement (thanks to Thad Floryan <thad@thadlabs.com>)
- */
-char *strerror(int error)
-{
- static char msg[16];
- if (error >= 0 && error < sys_nerr)
- return sys_errlist[error];
- sprintf(msg, "Error %d", error);
- return msg;
-}
-#endif
-
-/*
- * The main function
- */
-int main(int argc, char **argv)
-{
- struct Barcode_Item * bc;
- FILE *ifile = stdin;
- FILE *ofile = stdout;
- char *line;
- int flags=0; /* for the library */
- int page, retval;
-
- prgname = argv[0];
-
- /* First of all, accept "--help" and "-h" as a special case */
- if (argc == 2 && (!strcmp(argv[1],"--help") || !strcmp(argv[1],"-h"))) {
- commandline_errormsg(stderr, option_table, argv[0], "Options:\n");
- fprintf(stderr,"\n");
- list_encodes(stderr);
- exit(1);
- }
- /* Also, accept "--version" as a special case */
- if (argc == 2 && (!strcmp(argv[1],"--version"))) {
- printf("barcode frontend (GNU barcode) " BARCODE_VERSION "\n");
- exit(0);
- }
-
- /* Otherwise, parse the commandline */
- retval = commandline(option_table, argc, argv, "Use: %s [options]\n");
- if (retval) {
- if (retval == -1) /* help printed, complete it */
- list_encodes(stderr);
- else /* no help printed, suggest it */
- fprintf(stderr, "%s: try \"%s --help\"\n", prgname, prgname);
- exit(1);
- }
-
- /* If no paper size has been specified, use the default, if any */
- if (!page_name) {
- page_wid = 595; page_hei = 842;
- page_name = "A4"; /* I live in Europe :) */
-#ifndef NO_LIBPAPER
- get_page_geometry(systempapername()); /* or the system default */
-#endif
- }
-
- /* FIXME: print warnings for incompatible options */
-
- /* open the input stream if specified */
- if (ifilename)
- ifile = fopen(ifilename,"r");
- if (!ifile) {
- fprintf(stderr, "%s: %s: %s\n", argv[0], ifilename,
- strerror(errno));
- exit(1);
- }
-
- /* open the output stream if specified */
- if (ofilename)
- ofile = fopen(ofilename,"w");
- if (!ofile) {
- fprintf(stderr, "%s: %s: %s\n", argv[0], ofilename,
- strerror(errno));
- exit(1);
- }
-
- if (encoding_type < 0) { /* unknown type specified */
- fprintf(stderr,"%s: Unknown endoding. Try \"%s --help\"\n",
- argv[0], argv[0]);
- exit(1);
- }
- flags |= encoding_type;
- if (pcl) {
- flags |= BARCODE_OUT_PCL;
- } else {
- ps = !eps; /* a shortcut */
- if (eps)
- flags |= BARCODE_OUT_EPS; /* print headers too */
- else
- flags |= BARCODE_OUT_PS | BARCODE_OUT_NOHEADERS;
- }
- if (noascii)
- flags |= BARCODE_NO_ASCII;
- if (nochecksum)
- flags |= BARCODE_NO_CHECKSUM;
-
- /* the table is not available in eps mode */
- if (eps && (lines>1 || columns>1)) {
- fprintf(stderr, "%s: can't print tables in EPS format\n",argv[0]);
- exit(1);
- }
-
- if (ps) { /* The header is independent of single/table mode */
- /* Headers. Don't let the library do it, we may need multi-page */
- fprintf(ofile, "%%!PS-Adobe-2.0\n");
- /* It would be nice to know the bounding box. Leave it alone */
- fprintf(ofile, "%%%%Creator: \"barcode\", "
- "libbarcode sample frontend\n");
- if (page_name)
- fprintf(ofile, "%%%%DocumentPaperSizes: %s\n", page_name);
- fprintf(ofile, "%%%%EndComments\n");
- fprintf(ofile, "%%%%EndProlog\n\n");
- }
-
- /*
- * Here we are, ready to work. Handle the one-per-page case first,
- * as it is shorter.
- */
- if (!lines && !columns) {
- page = 0;
- while ( (line = retrieve_input_string(ifile)) ) {
- page++;
- if (ps) {
- fprintf(ofile, "%%%%Page: %i %i\n\n",page,page);
- }
- if (Barcode_Encode_and_Print(line, ofile, code_width, code_height,
- xmargin0, ymargin0, flags) < 0) {
- fprintf(stderr, "%s: can't encode \"%s\"\n", argv[0], line);
- }
- if (eps) break; /* if output is eps, do it once only */
- if (ps) fprintf(ofile, "showpage\n");
- if (pcl) fprintf(ofile, "\f");
- }
- /* no more lines, print footers */
- if (ps) {
- fprintf(ofile, "%%%%Trailer\n\n");
- }
- } else {
-
- /* table mode, the header has been already printed */
-
- int xstep = (page_wid - xmargin0 - xmargin1)/columns;
- int ystep = (page_hei - ymargin0 - ymargin1)/lines;
- int x = columns, y = -1; /* position in the table, start off-page */
-
- if (!ximargin) ximargin = BARCODE_DEFAULT_MARGIN;
- if (!yimargin) yimargin = BARCODE_DEFAULT_MARGIN;
- /* Assign default size unless -g did it (Joachim Reichelt) */
- if ( !code_width && !code_height) {
- code_width = xstep - 2*ximargin;
- code_height = ystep - 2*yimargin;
- }
-
- page=0;
- while ( (line = retrieve_input_string(ifile)) ) {
- x++; /* fit x and y */
- if (x >= columns) {
- x=0; y--;
- if (y<0) {
- y = lines-1; page++;
- /* flush page */
- if (ps && page > 1) fprintf(ofile, "showpage\n");
- if (pcl && page > 1) fprintf(ofile, "\f");
- /* new page */
- if (ps) fprintf(ofile, "%%%%Page: %i %i\n\n",page,page);
- }
- }
-
- /*
- * Create a barcode item. This allows to set the margin to 0, as
- * we have [xy]imargin to use. But don't use Encode_and_Print(),
- * unroll it here instead
- */
- bc = Barcode_Create(line);
- if (!bc) {
- fprintf(stderr, "%s: Barcode_Create(): %s\n", argv[0],
- strerror(errno));
- exit(1);
- }
- bc->margin = 0;
- if ( (Barcode_Position(bc, code_width, code_height,
- xmargin0 + ximargin + x * xstep,
- ymargin0 + yimargin + y * ystep, 0.0) < 0)
- || (Barcode_Encode(bc, flags) < 0)
- || (Barcode_Print(bc, ofile, flags) < 0) ) {
- fprintf(stderr, "%s: can't encode \"%s\": %s\n", argv[0],
- line, strerror(bc->error));
- }
- Barcode_Delete(bc);
- }
- if (ps) fprintf(ofile, "showpage\n\n%%%%Trailer\n\n");
- if (pcl) fprintf(ofile, "\f");
- }
- return 0;
-}
-
-
-
projects / glabels / blobdiff