--- /dev/null
+/*
+ * "$Id: hpgl-input.c 4494 2005-02-18 02:18:11Z mike $"
+ *
+ * HP-GL/2 input processing for the Common UNIX Printing System (CUPS).
+ *
+ * Copyright 1993-2005 by Easy Software Products.
+ *
+ * These coded instructions, statements, and computer programs are the
+ * property of Easy Software Products and are protected by Federal
+ * copyright law. Distribution and use rights are outlined in the file
+ * "LICENSE.txt" which should have been included with this file. If this
+ * file is missing or damaged please contact Easy Software Products
+ * at:
+ *
+ * Attn: CUPS Licensing Information
+ * Easy Software Products
+ * 44141 Airport View Drive, Suite 204
+ * Hollywood, Maryland 20636 USA
+ *
+ * Voice: (301) 373-9600
+ * EMail: cups-info@cups.org
+ * WWW: http://www.cups.org
+ *
+ * This file is subject to the Apple OS-Developed Software exception.
+ *
+ * Contents:
+ *
+ * ParseCommand() - Parse an HPGL/2 command.
+ * FreeParameters() - Free all string parameter values.
+ */
+
+/*
+ * Include necessary headers...
+ */
+
+#include "hpgltops.h"
+#include <ctype.h>
+
+#define MAX_PARAMS 16384
+
+
+/*
+ * 'ParseCommand()' - Parse an HPGL/2 command.
+ *
+ * Returns the number of parameters seen or -1 on EOF.
+ */
+
+int /* O - -1 on EOF, # params otherwise */
+ParseCommand(FILE *fp, /* I - File to read from */
+ char *name, /* O - Name of command */
+ param_t **params) /* O - Parameter list */
+{
+ int num_params, /* Number of parameters seen */
+ ch, /* Current char */
+ done, /* Non-zero when the current command is read */
+ i; /* Looping var */
+ char buf[262144], /* String buffer */
+ *bufptr; /* Pointer into buffer */
+ static param_t p[MAX_PARAMS]; /* Parameter buffer */
+
+
+ num_params = 0;
+ done = 0;
+
+ do
+ {
+ while ((ch = getc(fp)) != EOF)
+ if (strchr(" \t\r\n,;", ch) == NULL)
+ break;
+
+ if (ch == EOF)
+ {
+ return (-1);
+ }
+
+ if (ch == 0x1b)
+ switch (getc(fp))
+ {
+ case '.' : /* HP-GL/2 job control */
+ i = getc(fp);
+
+ if (strchr(")Z", i) != NULL)
+ {
+ /*
+ * 'Printer Off' command - look for next 'Printer On' command...
+ */
+
+ for (;;)
+ {
+ while ((i = getc(fp)) != EOF && i != 0x1b);
+
+ if (i == EOF)
+ return (-1);
+
+ if (getc(fp) != '.')
+ continue;
+
+ if ((i = getc(fp)) == '(' ||
+ i == 'Y')
+ break;
+ }
+ }
+ else if (strchr("@HIMNTI\003", i) != NULL)
+ {
+ while ((i = getc(fp)) != EOF && i != ':');
+ }
+ break;
+
+ case '%' : /* PJL command? */
+ if ((i = getc(fp)) == '-')
+ if ((i = getc(fp)) == '1')
+ if ((i = getc(fp)) == '2')
+ {
+ /*
+ * Yes, dump everything up to the "ENTER LANGUAGE" line...
+ */
+
+ while (fgets(buf, sizeof(buf), fp) != NULL)
+ if (strstr(buf, "ENTER") && strstr(buf, "LANGUAGE"))
+ break;
+ break;
+ }
+
+ ungetc(i, fp);
+
+ default : /* HP RTL/PCL control */
+ while ((i = getc(fp)) != EOF && !isupper(i & 255));
+ break;
+ }
+ } while (ch < ' ');
+
+ name[0] = ch;
+ name[1] = getc(fp);
+ name[2] = '\0';
+
+ if (strcasecmp(name, "LB") == 0)
+ {
+ bufptr = buf;
+ while ((ch = getc(fp)) != StringTerminator)
+ if (bufptr < (buf + sizeof(buf) - 1))
+ *bufptr++ = ch;
+ *bufptr = '\0';
+
+ p[num_params].type = PARAM_STRING;
+ p[num_params].value.string = strdup(buf);
+ num_params ++;
+ }
+ else if (strcasecmp(name, "SM") == 0)
+ {
+ buf[0] = getc(fp);
+ buf[1] = '\0';
+ p[num_params].type = PARAM_STRING;
+ p[num_params].value.string = strdup(buf);
+ num_params ++;
+ }
+ else if (strcasecmp(name, "DT") == 0)
+ {
+ if ((buf[0] = getc(fp)) != ';')
+ {
+ buf[1] = '\0';
+ p[num_params].type = PARAM_STRING;
+ p[num_params].value.string = strdup(buf);
+ num_params ++;
+ }
+ }
+ else if (strcasecmp(name, "PE") == 0)
+ {
+ bufptr = buf;
+ while ((ch = getc(fp)) != ';')
+ if (bufptr < (buf + sizeof(buf) - 1))
+ *bufptr++ = ch;
+ *bufptr = '\0';
+
+ p[num_params].type = PARAM_STRING;
+ p[num_params].value.string = strdup(buf);
+ num_params ++;
+ }
+
+ while (!done)
+ switch (ch = getc(fp))
+ {
+ case ',' :
+ case ' ' :
+ case '\n' :
+ case '\r' :
+ case '\t' :
+ break;
+
+ case '\"' :
+ fscanf(fp, "%262143[^\"]\"", buf);
+ if (num_params < MAX_PARAMS)
+ {
+ p[num_params].type = PARAM_STRING;
+ p[num_params].value.string = strdup(buf);
+ num_params ++;
+ };
+ break;
+
+ case '-' :
+ case '+' :
+ ungetc(ch, fp);
+ fscanf(fp, "%f", &(p[num_params].value.number));
+ if (num_params < MAX_PARAMS)
+ {
+ p[num_params].type = PARAM_RELATIVE;
+ num_params ++;
+ }
+ break;
+ case '0' :
+ case '1' :
+ case '2' :
+ case '3' :
+ case '4' :
+ case '5' :
+ case '6' :
+ case '7' :
+ case '8' :
+ case '9' :
+ case '.' :
+ ungetc(ch, fp);
+ fscanf(fp, "%f", &(p[num_params].value.number));
+ if (num_params < MAX_PARAMS)
+ {
+ p[num_params].type = PARAM_ABSOLUTE;
+ num_params ++;
+ }
+ break;
+ default :
+ ungetc(ch, fp);
+ done = 1;
+ break;
+ }
+
+ *params = p;
+ return (num_params);
+}
+
+
+/*
+ * 'FreeParameters()' - Free all string parameter values.
+ */
+
+void
+FreeParameters(int num_params, /* I - Number of parameters */
+ param_t *params) /* I - Parameter values */
+{
+ int i; /* Looping var */
+
+
+ for (i = 0; i < num_params; i ++)
+ if (params[i].type == PARAM_STRING)
+ free(params[i].value.string);
+}
+
+
+/*
+ * End of "$Id: hpgl-input.c 4494 2005-02-18 02:18:11Z mike $".
+ */
projects / thirdparty / cups.git / blobdiff